CN109973662B - High-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device - Google Patents

High-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device Download PDF

Info

Publication number
CN109973662B
CN109973662B CN201910296454.0A CN201910296454A CN109973662B CN 109973662 B CN109973662 B CN 109973662B CN 201910296454 A CN201910296454 A CN 201910296454A CN 109973662 B CN109973662 B CN 109973662B
Authority
CN
China
Prior art keywords
air
gas
fixedly connected
sealing
iii
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910296454.0A
Other languages
Chinese (zh)
Other versions
CN109973662A (en
Inventor
刘青康
朱晓红
童弋
李隆球
张广玉
帅词俊
陈敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANCHANG CAMPUS OF JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Original Assignee
NANCHANG CAMPUS OF JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NANCHANG CAMPUS OF JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY filed Critical NANCHANG CAMPUS OF JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Priority to CN201910296454.0A priority Critical patent/CN109973662B/en
Publication of CN109973662A publication Critical patent/CN109973662A/en
Application granted granted Critical
Publication of CN109973662B publication Critical patent/CN109973662B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
    • 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
    • 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
    • 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

Landscapes

  • 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 invention relates to the technical field of aerospace ground simulation tests, in particular to a high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device which comprises a gas sealing device, a transverse transmission shaft, a connecting device, a longitudinal two-degree-of-freedom motion gas float, a base gas float, a high-low temperature box and a longitudinal plane triangular lifting hook device, wherein dry and pure gas is provided by external gas supply equipment to enter the gas sealing device, a gas film I is formed in the gas sealing device, so that friction in the rotating process of the transverse transmission shaft can be reduced, power transmission is facilitated, the gravity of the whole device is balanced under the action of a transverse triangular balance lifting hook, the influence of the transverse transmission shaft on a test due to the gravity is eliminated, meanwhile, a gas film II is formed between the longitudinal two-degree-of-freedom motion gas float and a fixed gas float, and a gas film, the air sealing device can stably suspend in the lateral plane of the high-low temperature box.

Description

High-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device
Technical Field
The invention relates to the technical field of aerospace ground simulation tests, in particular to a high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device.
Background
The low-speed transverse through box shaft is often used in a space environment simulation box of aerospace ground simulation equipment. Adopt dry dustless gas as protective gas in the high-low temperature case, can appear gaseous exposing in equipment use, temperature, humidity, the cleanliness factor in the high-low temperature case receive external condition influence, and horizontal cross box axle is at the in-process of operation simultaneously, because the gravity of transmission shaft is not balanced, not only can seriously influence whole experimental result, but also has the hidden danger of damaging the interior valuable equipment of high-low temperature case. The traditional sealing device has the defects of high pollution, friction between the sealing device and a transmission shaft and the like in the test process. Therefore, the low-speed transverse through box shaft sealing device has the characteristics of good air tightness, capability of balancing the gravity of the air sealing device and a transverse transmission shaft and more degrees of freedom.
Disclosure of Invention
The invention aims to provide a high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device, which can reduce friction in the rotation process of a transverse transmission shaft, is beneficial to power transmission, meets the sealing requirements of strong air tightness and no pollution, balances the gravity of the whole device under the action of a longitudinal triangular balance hook, eliminates the influence of the transverse transmission shaft on a test due to the gravity, enables the gas sealing device to be stably suspended in a side plane of a high-low temperature box under the action of gas pressure, and performs two-degree-of-freedom plane movement along the side plane of the high-low temperature box, plays a certain protection role on test equipment in the high-low temperature box, and better adapts to the unpredictable complicated working condition of the transverse transmission shaft in the space-ground simulation test process.
The purpose of the invention is realized by the following technical scheme:
a high and low temperature box transverse three-degree-of-freedom low-speed box-penetrating shaft gas sealing device comprises a gas sealing device, a transverse transmission shaft, a connecting device, a longitudinal two-degree-of-freedom motion gas floating device, a base gas floating device, a high and low temperature box and a longitudinal plane triangular hook device, wherein the gas sealing device comprises a shell, a shaft sleeve, a gas sealing boss I, a gas sealing boss II and an adjusting ring, the upper end of the shell is fixedly connected with the gas sealing boss II, the lower end of the shaft sleeve is fixedly connected with the gas sealing boss I, the shell, the shaft sleeve, the gas sealing boss I and the gas sealing boss II form an annular space, the adjusting ring is arranged in the annular space, a gap I is formed between the adjusting ring and the shell, the shaft sleeve and the gas sealing boss I, a gas film I is formed under the gas supply of a gas supply device, the air pressure in the gas film I is higher than the air pressure, connecting device's outside fixed connection is at vertical two degree of freedom motion air supporting, base air supporting fixed connection is on high-low temperature case, there is clearance II between vertical two degree of freedom motion air supporting and the base air supporting, clearance II forms air film II under air feeder's air feed, fixedly connected with vertical plane triangle hook assembly on the high-low temperature case, form clearance III between vertical plane triangle hook assembly's inboard and the vertical two degree of freedom motion air supporting, clearance III forms air film III under air feeder's air feed, the atmospheric pressure mutual equilibrium in air film II and the air film III promotes vertical two degree of freedom motion air supporting and floats on the vertical face of base air supporting side.
As a further optimization of the technical scheme, the invention relates to a high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device, which further comprises a gas guide pipe, a through hole, a gas plug, an annular groove I, a honeycomb-shaped sealing ring I, a vent hole, a honeycomb-shaped sealing ring II, an annular groove II, a honeycomb-shaped sealing ring III, a baffle ring, a partition ring and a compression spring, wherein the shell is provided with the through hole, the gas guide pipe penetrates through the shell and is communicated with the through hole, the gas supply device is connected onto the gas guide pipe, the gas plug is arranged in the through hole, the annular groove I is arranged on an adjusting ring, the annular groove I is communicated with the through hole, the outer side of the adjusting ring is provided with the two honeycomb-shaped sealing rings I, the two honeycomb-shaped sealing rings I are respectively positioned at the left side and the right side of the annular groove I, the right ends, the outside of adjustable ring left end is provided with honeycombed sealing washer II and ring channel II, and the inboard of adjustable ring right-hand member is provided with honeycombed sealing washer III, has placed on the honeycombed sealing washer III and has kept off the ring, keeps off to be connected with the spacer ring on the ring, is provided with compression spring between spacer ring and the atmoseal boss II.
As further optimization of the technical scheme, the high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device is characterized in that the compression spring is in a compression state, and the axes of the gas guide pipe and the plurality of vent holes are parallel to the axis of the shell.
As a further optimization of the technical scheme, the high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device provided by the invention has the advantages that the corners of the corresponding parts among the shell, the shaft sleeve, the gas seal boss I, the gas seal boss II, the adjusting ring and the separating ring are all rounded corners.
As further optimization of the technical scheme, the high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device comprises a gasket I, a gasket II and annular rubber, wherein a bolt I sequentially penetrates through a gas seal boss II and the annular rubber to be fixedly connected to the gasket I.
As a further optimization of the technical scheme, the invention relates to a high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device, which comprises a movable air floating cover, a sealing rubber ring I, a transmission channel I, a gas conveying pipe I, an output hole I, a copper sleeve nozzle I, a limiting baffle ring, a hook suspension boss, marble and a magnet I, wherein a bolt II sequentially penetrates through the movable air floating cover, the movable air floating cover and annular rubber to be fixedly connected onto a gasket II, a bolt III sequentially penetrates through the movable air floating cover and the movable air floating cover to be fixedly connected onto the movable air floating cover, two sealing rubber rings I are arranged between the movable air floating cover and the movable air floating cover, the transmission channel I is arranged on the right side of the movable air floating cover, the two sealing rubber rings I are coaxially arranged with the transmission channel I, and the inner diameter and the outer diameter of the transmission channel I are both positioned, delivery outlet I is provided with a plurality ofly, I circumference evenly distributed along transmission path is all followed to a plurality of delivery outlets I, I equal and I intercommunication of transmission path of a plurality of delivery outlets, equal fixedly connected with copper sheathing nozzle I in a plurality of delivery outlets I, I intercommunication of air-supply pipe passing mobile air supporting lid and transmission path, be connected with air supply equipment on the air-supply pipe I, the inboard fixedly connected with spacing fender ring of removal air supporting left end, the fixed connection lifting hook suspension boss is covered in the removal air supporting, fixedly connected with marble is covered in the removal air supporting, the inboard fixedly connected with magnet I of lifting hook suspension boss.
As a further optimization of the technical scheme, the invention relates to a high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device, which comprises a base, a base gas float, two sealing rubber rings II, a transmission channel II, a gas conveying pipe II, an output hole II and a copper sleeve nozzle II, wherein screws sequentially penetrate through the base and the base gas float and are fixedly connected to the high-low temperature box, the two sealing rubber rings II are arranged between the base and the base gas float, the transmission channel II is arranged on the base, the two sealing rubber rings II are coaxially arranged with the transmission channel II, the inner diameter and the outer diameter of the transmission channel II are respectively positioned between the two sealing rubber rings II, the gas conveying pipe II penetrates through the base and is communicated with the transmission channel II, the gas conveying pipe II is connected with gas supply equipment, the output holes II are provided with a plurality of output holes II which are uniformly distributed along the circumferential direction of the transmission channel II, the output, and copper sleeve nozzles II are fixedly connected in the output holes II, and gaps II are formed between the base and the movable air floatation body.
As further optimization of the technical scheme, the high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device is characterized in that axial homogeneous phases of a plurality of output holes II are vertically arranged relative to a transmission channel II, the inner diameter of base air floatation is equal to the inner diameter of the high-low temperature box, the axial homogeneous phases of a plurality of output holes I are vertically arranged relative to the transmission channel I, the inner diameter relative to the transmission channel I is larger than the outer diameter of the transmission channel II, and the vertical position of the left end of the limiting baffle ring is located on the left side of the vertical position of the right end of the base air floatation.
As a further optimization of the technical scheme, the invention relates to a high and low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device, which comprises a servo motor I, two screw rods I, a moving plate, a moving platform, a synchronous belt, a lifting hook, a gas conveying pipe III, a gas conveying groove, an output hole III, a copper sleeve nozzle III, a servo motor II, a screw rod II, a sliding platform, a screw rod nut seat and a magnet II, wherein the servo motor I is provided with two screw rods, the two motor I are fixedly connected to the high and low temperature box, the output shafts of the two motor I are fixedly connected with the screw rods I, the two screw rods I are respectively connected with the moving plate through threads, the two moving plates are respectively and fixedly connected to two ends of the moving platform, the servo motor III is fixedly connected to the moving platform, the output shaft of the servo motor III is in transmission connection, two servo motors II are arranged, two screw rods II are fixedly connected to output shafts of the two servo motors II, screw rod nut seats are connected to the two screw rods II through threads, two sliding platforms are arranged, the two screw rod nut seats are fixedly connected to the two sliding platforms respectively, three lifting hooks are fixedly connected to the two screw rod nut seats respectively, three lifting hooks are arranged, gas conveying pipes III are connected to the three lifting hooks respectively, gas supply equipment is connected to the three gas conveying pipes III, gas conveying grooves are connected to the three lifting hooks respectively, a plurality of output holes III are arranged on the three lifting hooks respectively, copper sleeve nozzles III are fixedly connected to the inner portions of the output holes III respectively, one end of each copper sleeve nozzle III is communicated with the corresponding gas conveying groove, the outlet end of each copper sleeve nozzle III is marble, and magnets II are fixedly connected to the outer sides of the three lifting hooks respectively, three magnet II all corresponds with magnet I, has clearance III between three lifting hook and the lifting hook suspension boss.
As a further optimization of the technical scheme, the three-degree-of-freedom low-speed box penetrating shaft gas sealing device with the high and low temperature boxes transversely arranged is characterized in that the three lifting hooks are arranged in a regular triangle on the right side of the longitudinal plane moving air floatation.
The high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device has the beneficial effects that:
the high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device can prevent protective gas in the high-low temperature box from overflowing, and meanwhile, a gas film I is formed in the gas sealing device, so that friction in the rotation process of a transverse transmission shaft can be reduced, power transmission is facilitated, the constant dew point temperature in the high-low temperature box can be ensured, the friction in the rotation process of the transverse transmission shaft can be reduced, the power transmission is facilitated, and the sealing requirements of strong air tightness and no pollution are met; under the effect of the horizontal triangular balance lifting hook, the gravity of the whole device is balanced, the influence of a horizontal transmission shaft on a test due to the gravity is eliminated, meanwhile, an air film II is formed between the vertical two-degree-of-freedom motion air floatation and the fixed air floatation, and an air film III is formed between the vertical triangular balance lifting hook and the vertical two-degree-of-freedom motion air floatation.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of the overall structure of a high-low temperature box transverse three-degree-of-freedom low-speed box-penetrating shaft gas sealing device of the present invention;
FIG. 2 is a right side view structural schematic diagram of the high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device of the present invention;
FIG. 3 is a schematic view of a partial structure of a high-low temperature box transverse three-degree-of-freedom low-speed box-penetrating shaft gas sealing device of the present invention;
FIG. 4 is a schematic view of a partial structure of a high-low temperature box transverse three-degree-of-freedom low-speed box-penetrating shaft gas sealing device of the present invention;
FIG. 5 is a partially enlarged structural view of part A of the present invention;
FIG. 6 is a schematic view of the gas seal apparatus of the present invention;
FIG. 7 is a schematic view of the construction of the connection device of the present invention;
FIG. 8 is a schematic diagram of a longitudinal two-degree-of-freedom motion air bearing configuration of the present invention;
FIG. 9 is a schematic view of the enlarged view of part D of the present invention;
FIG. 10 is a schematic view of the base air bearing structure of the present invention;
FIG. 11 is a schematic view of the enlarged view of part E of the present invention;
FIG. 12 is a schematic view of a longitudinal flat triangular hook assembly of the present invention;
fig. 13 is a schematic view of the enlarged view of part F of the present invention.
In the figure: a gas seal device 1; a housing 1-1; 1-2 of shaft sleeve; 1-3 of a gas seal boss; air seal bosses II 1-4; 1-5 of an air duct; 1-6 of a through hole; 1-7 parts of air plug; adjusting rings 1-8; 1-9 annular grooves; 1-10 parts of a honeycombed sealing ring; 1-11 of vent holes; 1-12 parts of a honeycomb-shaped sealing ring II; annular grooves II 1-13; 1-14 parts of a honeycomb-shaped sealing ring III; 1-15 parts of baffle ring; divider rings 1-16; compression springs 1-17; a transverse transmission shaft 2; a connecting device 3; 3-1 of a gasket; a gasket II 3-2; 3-3 parts of circular rubber; longitudinal two-degree-of-freedom motion air flotation 4; moving the air floating cover 4-1; 4-2 of moving air flotation; 4-3 parts of a sealing rubber ring; a transmission channel I4-4; 4-5 gas delivery pipes; an output hole I4-6; 4-7 parts of a copper sleeve nozzle; 4-8 parts of a limiting baffle ring; 4-9 of a suspension boss of the lifting hook; 4-10 parts of marble; 4-11 parts of magnet; base air flotation 5; 5-1 of a base; 5-2 of base air flotation; 5-3 parts of a sealing rubber ring; a transmission channel II 5-4; 5-5 parts of a gas delivery pipe II; an output hole II 5-6; 5-7 parts of a copper sleeve nozzle II; a high and low temperature tank 6; a longitudinal plane triangular hook device 7; a servo motor I7-1; 7-2 parts of a screw rod; 7-3 of a moving plate; 7-4 of a mobile platform; 7-5 of a synchronous belt; 7-6 of a lifting hook; 7-7 gas delivery pipe III; 7-8 parts of gas transmission groove; output holes III 7-9; 7-10 parts of a copper sleeve nozzle III; servo motors II 7-11; 7-12 parts of a screw mandrel II; 7-13 of a sliding platform; 7-14 parts of a screw rod and nut seat; and magnets II 7-15.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and "upright", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly or indirectly connected through an intermediate medium, and may be a communication between two members. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present invention, the meaning of "a plurality", and "a plurality" is two or more unless otherwise specified.
The first embodiment is as follows:
the embodiment is described below with reference to fig. 1-13, and a high-low temperature box transverse three-degree-of-freedom low-speed box-penetrating shaft gas sealing device comprises a gas sealing device 1, a transverse transmission shaft 2, a connecting device 3, a longitudinal two-degree-of-freedom motion gas floating 4, a base gas floating 5, a high-low temperature box 6 and a longitudinal plane triangular hook device 7, wherein the gas sealing device 1 comprises a shell 1-1, a shaft sleeve 1-2, a gas sealing boss i 1-3, a gas sealing boss ii 1-4 and an adjusting ring 1-8, the upper end of the shell 1-1 is fixedly connected with the gas sealing boss ii 1-4, the lower end of the shaft sleeve 1-2 is fixedly connected with the gas sealing boss i 1-3, the shell 1-1, the shaft sleeve 1-2, the gas sealing boss i 1-3 and the gas sealing boss ii 1-4 form an annular space, and the adjusting, a gap I is formed between an adjusting ring 1-8 and a shell 1-1 and between a shaft sleeve 1-2 and an air seal boss I1-3, an air film I is formed in the gap I under the air supply of an air supply device, the air pressure in the air film I is higher than the air pressure in a high-low temperature box 6, a transverse transmission shaft 2 is in interference fit in the shaft sleeve 1-2, the inner side of a connecting device 3 is fixedly connected to the air seal device 1, the outer side of the connecting device 3 is fixedly connected to a longitudinal two-degree-of-freedom motion air float 4, a base air float 5 is fixedly connected to the high-low temperature box 6, a gap II is formed between the longitudinal two-degree-of-freedom motion air float 4 and the base air float 5, an air film II is formed under the air supply of the air supply device, a longitudinal plane triangular hook device 7 is fixedly connected to the high-low temperature box 6, the gap III forms an air film III under the air supply of the air supply device, the air pressures in the air film II and the air film III are mutually balanced to push a longitudinal two-degree-of-freedom motion air float 4 to float on a vertical surface at the side end of a base air float 5; the protective gas in the high-low temperature box 6 can be prevented from overflowing, meanwhile, an air film I is formed in the air sealing device 1, so that friction in the rotation process of the transverse transmission shaft 2 can be reduced, power transmission is facilitated, the constant dew point temperature in the high-low temperature box 6 can be ensured, the friction in the rotation process of the transverse transmission shaft 2 can be reduced, the power transmission is facilitated, and the sealing requirements of strong air tightness and no pollution are met; under the action of a transverse triangular balance lifting hook 7, the gravity of the whole device is balanced, the influence of the transverse transmission shaft 2 on a test due to the gravity is eliminated, meanwhile, an air film II is formed between a longitudinal two-degree-of-freedom motion air float 4 and a fixed air float 5, an air film III is formed between the longitudinal triangular balance lifting hook 7 and the longitudinal two-degree-of-freedom motion air float 4, under the action of air pressure, the air sealing device 1 can be stably suspended in a side plane of the high-low temperature box 6 and freely move with two degrees of freedom, a certain protection effect is achieved on test equipment in the high-low temperature box 6, and the unexpected complex working condition of the transverse transmission shaft 2 in the space-flight ground simulation test process can be better adapted; the transverse transmission shaft 2 in the device must be in a low-speed rotation state, and the axial direction cannot move.
The second embodiment is as follows:
the embodiment is described below with reference to fig. 1-13, the air sealing device 1 further comprises air ducts 1-5, through holes 1-6, air plugs 1-7, annular grooves i 1-9, honeycomb-shaped sealing rings i 1-10, vent holes 1-11, honeycomb-shaped sealing rings ii 1-12, annular grooves ii 1-13, honeycomb-shaped sealing rings iii 1-14, baffle rings 1-15, separating rings 1-16 and compression springs 1-17, the casing 1-1 is provided with the through holes 1-6, the air ducts 1-5 pass through the casing 1-1 to communicate with the through holes 1-6, the air ducts 1-5 are connected with an air supply device, the air plugs 1-7 are arranged in the through holes 1-6, the annular grooves i 1-9 are arranged on the adjusting rings 1-8, the annular grooves i 1-9 communicate with the through holes 1-6, the outer side of the adjusting ring 1-8 is provided with two honeycomb-shaped sealing rings I1-10, the two honeycomb-shaped sealing rings I1-10 are respectively positioned at the left side and the right side of the annular groove I1-9, the left side of the adjusting ring 1-8 is provided with a plurality of vent holes 1-11, the right ends of the vent holes 1-11 are communicated with the annular groove I1-9, the left ends of the vent holes 1-11 are communicated with a gap I between a gas seal boss I1-3 and the adjusting ring 1-8, the outer side of the left end of the adjusting ring 1-8 is provided with honeycomb-shaped sealing rings II 1-12 and an annular groove II 1-13, the inner side of the right end of the adjusting ring 1-8 is provided with honeycomb-shaped sealing rings III 1-14, the honeycomb-shaped sealing rings III 1-14 are provided with baffle rings 1-15, and, a compression spring 1-17 is arranged between the separating ring 1-16 and the air seal boss II 1-4; the high and low temperature box 6 is filled with dry dust-free gas, the gas supply device is responsible for gas supply of the gas seal device and can constantly convey the dry dust-free gas with certain pressure, and the pressure of the conveyed dry dust-free gas is greater than that of the dry dust-free gas in the high and low temperature box 6; the honeycomb-shaped sealing rings I1-10, the honeycomb-shaped sealing rings II 1-12 and the honeycomb-shaped sealing rings III 1-14 have the functions of maintaining the pressure of gas among the gas seal bosses I1-3, the adjusting rings 1-8 and the differential shaft sleeves 1-2, so that the gas seal bosses I1-3, the adjusting rings 1-8 and the differential shaft sleeves 1-2 keep stable and uniform gaps I, and compression springs 1-17 are arranged between the separating rings 1-16 and the gas seal bosses II 1-4 to ensure that certain pressure is always kept among the adjusting rings 1-8, the shell 1-1 and the gas seal bosses II 1-4 to ensure the pressure in the gas film I; the dry dustless high-pressure gas in the air sealing device 1 is injected into an annular groove I1-9 through a through hole 1-6 by a gas supply device through a gas guide pipe 1-5, the gas in the annular groove I1-9 flows to a clearance I between an adjusting ring 1-8 and an air sealing boss I1-3 along a vent hole 1-11, the gas flows to a honeycomb-shaped sealing ring II 1-12 and a honeycomb-shaped sealing ring III 1-14 in two directions respectively to generate turbulence effect to increase the damping effect of the gas flow, meanwhile, the adsorption effect of the honeycomb-shaped sealing ring III 1-14 can play the functions of friction sealing and the like, the gas flow passes through a baffle ring 1-15 when flowing through the honeycomb-shaped sealing ring III 1-14, one part of the gas flows through the clearance I between the separating ring 1-16 and a shaft sleeve 1-2, and the other part of the gas flows through the clearance I between the baffle ring 1, the gas jacks up the compression springs 1-17, the gas passes through a large space to buffer the gas flow, and the gas flow uniformly flows out from a gap I between the shaft sleeve 1-2, the gas seal boss I1-3, the shell 1-1 and the gas seal boss II 1-4 to form a gas film I, so that the gas seal is realized; a stable gas film I with uniform thickness is formed between the shaft sleeve 1-2 and the adjusting ring 1-8, gas can uniformly flow out through the upper end and the lower end of the vertical transmission shaft 2, and the pressure of the input dry dust-free gas is greater than that of the dry dust-free gas in the high-low temperature box 6, so that the dry dust-free gas in the high-low temperature box 6 is prevented from overflowing, and a good sealing effect is achieved; the compression springs 1-17 finally compress the adjusting rings 1-8, so that sufficient pressure intensity of the air film I during initial rotation can be guaranteed, and the air film is helped to maintain the stability of the air film I.
The third concrete implementation mode:
the embodiment is described below with reference to fig. 1-13, the compression springs 1-17 are in a compressed state, the gap i is larger than 0.1mm, and the axes of the air duct 1-5 and the plurality of air vents 1-11 are all parallel to the axis of the housing 1-1; preferably, the gas film I is larger than 0.2 mm.
The fourth concrete implementation mode:
in the following, referring to fig. 1-13, the case 1-1, the shaft sleeve 1-2, the air seal boss i 1-3, the air seal boss ii 1-4, the adjusting ring 1-8 and the separating ring 1-16 are all rounded corners at their corresponding portions; when dry dust-free high-pressure gas enters the annular grooves I1-9 and the annular grooves II 1-13 through the high-pressure channel, the passing corners are uniform fillets, and the pressure at the transition position can be prevented from being increased sharply.
The fifth concrete implementation mode:
the embodiment is described below with reference to fig. 1-13, the connecting device 3 includes a washer i 3-1, a washer ii 3-2 and an annular rubber 3-3, and the bolt i passes through the air seal boss ii 1-4 and the annular rubber 3-3 in sequence to be fixedly connected to the washer i 3-1.
The sixth specific implementation mode:
the embodiment is described below with reference to fig. 1-13, the longitudinal two-degree-of-freedom motion air flotation 4 comprises a moving air flotation cover 4-1, a moving air flotation 4-2, a sealing rubber ring I4-3, a transmission channel I4-4, a gas transmission pipe I4-5, an output hole I4-6, a copper sleeve nozzle I4-7, a limit baffle ring 4-8, a hook suspension boss 4-9, marble 4-10 and a magnet I4-11, a bolt II sequentially penetrates through the moving air flotation 4-2, the moving air flotation cover 4-1 and a circular rubber 3-3 to be fixedly connected to a gasket II 3-2, a bolt III sequentially penetrates through the moving air flotation 4-2 and the moving air flotation cover 4-1 to be fixedly connected to the moving air flotation cover 4-1, two sealing rubber rings I4-3 are arranged between the moving air flotation cover 4-1 and the moving air flotation 4-2, the right side of the movable air flotation 4-2 is provided with a transmission channel I4-4, two sealing rubber rings I4-3 are coaxially arranged with the transmission channel I4-4, the inner diameter and the outer diameter of the transmission channel I4-4 are positioned between the two sealing rubber rings I4-3, a plurality of output holes I4-6 are arranged, the plurality of output holes I4-6 are uniformly distributed along the circumferential direction of the transmission channel I4-4, the plurality of output holes I4-6 are communicated with the transmission channel I4-4, copper sleeve nozzles I4-7 are fixedly connected in the plurality of output holes I4-6, a gas pipe I4-5 penetrates through the movable air flotation cover 4-1 to be communicated with the transmission channel I4-4, a gas supply device is connected on the gas pipe I4-5, and a limit stop ring 4-8 is fixedly connected on the inner side of the left end of the movable air flotation 4-2, a lifting hook suspension boss 4-9 is fixedly connected to the movable air floating cover 4-1, a marble 4-10 is fixedly connected to the movable air floating cover 4-1, and a magnet I4-11 is fixedly connected to the inner side of the lifting hook suspension boss 4-9.
The seventh embodiment:
the embodiment is described below with reference to fig. 1-13, wherein the base air flotation 5 comprises a base 5-1, a base air flotation 5-2, a sealing rubber ring II 5-3, a transmission channel II 5-4, a gas pipe II 5-5, an output hole II 5-6 and a copper sleeve nozzle II 5-7, a screw passes through the base 5-1 and the base air flotation 5-2 in sequence and is fixedly connected to the high-low temperature box 6, two sealing rubber rings II 5-3 are arranged between the base 5-1 and the base air flotation 5-2, the base 5-1 is provided with a transmission channel II 5-4, the two sealing rubber rings II 5-3 and the transmission channel II 5-4 are coaxially arranged, the inner diameter and the outer diameter of the transmission channel II 5-4 are both positioned between the two sealing rubber rings II 5-3, the gas pipe II 5-5 passes through the base 5-1 and is communicated with the transmission channel II 5-4, the gas delivery pipe II 5-5 is connected with a gas supply device, a plurality of output holes II 5-6 are arranged, the plurality of output holes II 5-6 are uniformly distributed along the circumferential direction of the transmission channel II 5-4, the plurality of output holes II 5-6 are communicated with the transmission channel II 5-4, copper sleeve nozzles II 5-7 are fixedly connected in the plurality of output holes II 5-6, and a gap II is formed between the base 5-1 and the movable air flotation 4-2; the horizontal transmission shaft 2 penetrates through the air sealing device 1 to be connected with equipment inside the high-low temperature box 6, the air sealing device 1 is connected with a longitudinal two-degree-of-freedom motion air floatation 4 into a whole through a connecting device 3, the longitudinal two-degree-of-freedom motion air floatation 4 is communicated with external air supply equipment through one end of an air delivery pipe I4-5, the other end of the longitudinal two-degree-of-freedom motion air floatation 4 is communicated with a transmission channel I4-4, the transmission channel I4-4 is uniformly distributed with output holes I4-6 along the circumferential direction of the longitudinal two-degree-of-freedom motion air floatation 4, the air output end of the output holes I4-6 is fixed air floatation 5, copper sleeve nozzles I4-7 with the aperture of 0.2mm are arranged inside the output holes I4-6, the copper sleeve nozzles I4-7 uniformly inject air to the fixed air floatation 5 to form an air film II in a gap II, the fixed air, the other end of the gas pipe II 5-5 is communicated with the transmission channel II 5-4, the transmission channel II 5-4 is uniformly distributed with output holes II 5-6 along the circumferential direction of the fixed air flotation 5, the gas output end of the output holes II 5-6 is a longitudinal two-degree-of-freedom motion air flotation 4, copper sleeve nozzles II 5-7 with the aperture of 0.2mm are arranged inside the output holes II 5-6, the copper sleeve nozzles II 5-7 uniformly inject air to the fixed air flotation 4 to form an air film II in the clearance II, the longitudinal two-degree-of-freedom motion air flotation 4 and the fixed air flotation 5 are blown into each other through external air supply equipment to form an air film II in the gap II, the air seal device 1 is driven by the connecting device 3 to suspend on the side surface of the high-low temperature box 6 by the air pressure to make the longitudinal two-degree-of-freedom motion air float 4 move freely in the Z and Y directions.
The specific implementation mode is eight:
the embodiment is described below with reference to fig. 1 to 13, wherein the axial directions of the plurality of output holes ii 5-6 are all vertically arranged with respect to the transmission channel ii 5-4, the inner diameter of the base air flotation 5-2 is equal to the inner diameter of the high and low temperature box 6, the axial directions of the plurality of output holes i 4-6 are all vertically arranged with respect to the transmission channel i 4-4, the inner diameter with respect to the transmission channel i 4-4 is greater than the outer diameter of the transmission channel ii 5-4, and the vertical position of the left end of the limit stop ring 4-8 is located on the left side of the vertical position of the right end of the base air flotation 5-2; the limiting baffle rings 4-8 can limit the planar movement range of the longitudinal two-degree-of-freedom motion air floatation 4 in the free movement process, and ensure that the device works under the optimal air tightness condition all the time.
The specific implementation method nine:
the embodiment is described below with reference to fig. 1-13, wherein the longitudinal plane triangular lifting hook device 7 comprises a servo motor I7-1, a screw rod I7-2, a moving plate 7-3, a moving platform 7-4, a synchronous belt 7-5, a lifting hook 7-6, a gas pipe III 7-7, a gas transmission groove 7-8, an output hole III 7-9, a copper sleeve nozzle III 7-10, a servo motor II 7-11, a screw rod II 7-12, a sliding platform 7-13, a screw rod nut seat 7-14 and a magnet II 7-15, the servo motor I7-1 is provided with two motors I7-1, the two motors I7-1 are fixedly connected to a high-low temperature box 6, output shafts of the two motors I7-1 are fixedly connected with the screw rod I7-2, the two screw rods I7-2 are both connected with the moving plate 7-3 through threads, two moving plates 7-3 are respectively fixedly connected with two ends of a moving platform 7-4, a servo motor III is fixedly connected on the moving platform 7-4, an output shaft of the servo motor III is in transmission connection with a synchronous belt 7-5, a lifting hook 7-6 is fixedly connected on the synchronous belt 7-5, two servo motors II 7-11 are arranged, screw rods II 7-12 are respectively and fixedly connected on output shafts of the two servo motors II 7-11, screw rod nut seats 7-14 are respectively and fixedly connected on the two screw rods II 7-12 through threads, two sliding platforms 7-13 are arranged, the two screw rod nut seats 7-14 are respectively and fixedly connected on the two sliding platforms 7-13, the lifting hooks 7-6 are respectively and fixedly connected on the two screw rod nut seats 7-14, and three lifting hooks 7-6 are arranged, three lifting hooks 7-6 are connected with gas transmission pipes III 7-7, three gas transmission pipes III 7-7 are connected with gas supply equipment, three lifting hooks 7-6 are connected with gas transmission grooves 7-8, three gas transmission pipes III 7-7 are respectively communicated with three gas transmission grooves 7-8, three lifting hooks 7-6 are provided with a plurality of output holes III 7-9, a copper sleeve nozzle III 7-10 is fixedly connected in each output hole III 7-9, one end of each copper sleeve nozzle III 7-10 is communicated with the corresponding gas transmission groove 7-8, the outlet end of each copper sleeve nozzle III 7-10 is marble 4-10, the outer sides of the three lifting hooks 7-6 are fixedly connected with magnets II 7-15, the three magnets II 7-15 are corresponding to the magnets I4-11, gaps III exist between the three lifting hooks 7-6 and the lifting hook suspension bosses 4-9; when the servo motor I7-1 rotates, an output shaft of the servo motor I7-1 drives the screw rod I7-2 to rotate by taking the axis of the screw rod I7-2 as the center, the screw rod I7-2 drives the moving plate 7-3 to move in the axis direction of the screw rod I7-2, the two moving plates 7-3 drive the moving platform 7-4 to move in the axis direction of the screw rod I7-2, the servo motor III drives the synchronous belt 7-5 to move when rotating, the synchronous belt 7-5 drives the lifting hook 7-6 fixedly connected with the synchronous belt 7-5 to move, the relative position of the lifting hook 7-6 on the synchronous belt 7-5 is changed, when the servo motor II 7-11 rotates, an output shaft of the servo motor II 7-11 drives the screw rod II 7-12 to rotate by taking the axis of the, the screw II 7-12 drives the screw nut seat 7-14 to move in the axial direction of the screw II 7-12, the screw nut seat 7-14 drives the lifting hook 7-6 fixedly connected with the screw nut seat to move, the relative position of the lifting hook 7-6 on the synchronous belt 7-5 is changed, the relative position change of the three lifting hooks 7-6 drives the change of the position of the longitudinal plane moving air floatation 4 on the base air floatation 5, and the three non-lifting hooks 7-6 are not contacted with the lifting hook suspension bosses 4-9 through the magnetic force generated between the magnets II 7-15 and the magnets I4-11; the gravity of the air seal device 1 and the gravity of the longitudinal plane moving air float 4 are balanced through the longitudinal plane triangular lifting hook device 7, meanwhile, dry dust-free gas is provided by external air supply equipment, the dry dust-free gas enters the air conveying grooves 7-8 through the air conveying pipes III 7-7 on the outer walls of the three lifting hooks 7-6 and is uniformly sprayed out from the copper sleeve nozzles III 7-10 to form air pressure in the gaps III, the balance longitudinal plane moving air float 4 is subjected to the air pressure transmitted by the base air float 5 in the horizontal direction, and the longitudinal plane moving air float 4 and the air seal device 1 can be stabilized in the vertical direction.
The detailed implementation mode is ten:
the embodiment is described below with reference to fig. 1 to 13, wherein the three hooks 7 to 6 are arranged in a regular triangle on the right side of the air flotation 4 moving in the longitudinal plane; as shown in fig. 2, the three hooks 7-6 are arranged in a regular triangle on the right side of the longitudinal plane moving air bearing 4, and the longitudinal plane triangular hook device 7 can balance the gravity of the air sealing device 1 and the longitudinal plane moving air bearing 4 and the air pressure provided by the base air bearing 5 in the horizontal direction to stabilize the longitudinal plane moving air bearing 4 and the air sealing device 1 in the vertical direction.
The invention relates to a high-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device, which has the working principle that:
the high and low temperature box 6 is filled with dry dust-free gas, the gas supply device is responsible for gas supply of the gas seal device and can constantly convey the dry dust-free gas with certain pressure, and the pressure of the conveyed dry dust-free gas is greater than that of the dry dust-free gas in the high and low temperature box 6; the honeycomb-shaped sealing rings I1-10, the honeycomb-shaped sealing rings II 1-12 and the honeycomb-shaped sealing rings III 1-14 have the functions of maintaining the pressure of gas among the gas seal bosses I1-3, the adjusting rings 1-8 and the differential shaft sleeves 1-2, so that the gas seal bosses I1-3, the adjusting rings 1-8 and the differential shaft sleeves 1-2 keep stable and uniform gaps I, and compression springs 1-17 are arranged between the separating rings 1-16 and the gas seal bosses II 1-4 to ensure that certain pressure is always kept among the adjusting rings 1-8, the shell 1-1 and the gas seal bosses II 1-4 to ensure the pressure in the gas film I; the dry dustless high-pressure gas in the air sealing device 1 is injected into an annular groove I1-9 through a through hole 1-6 by a gas supply device through a gas guide pipe 1-5, the gas in the annular groove I1-9 flows to a clearance I between an adjusting ring 1-8 and an air sealing boss I1-3 along a vent hole 1-11, the gas flows to a honeycomb-shaped sealing ring II 1-12 and a honeycomb-shaped sealing ring III 1-14 in two directions respectively to generate turbulence effect to increase the damping effect of the gas flow, meanwhile, the adsorption effect of the honeycomb-shaped sealing ring III 1-14 can play the functions of friction sealing and the like, the gas flow passes through a baffle ring 1-15 when flowing through the honeycomb-shaped sealing ring III 1-14, one part of the gas flows through the clearance I between the separating ring 1-16 and a shaft sleeve 1-2, and the other part of the gas flows through the clearance I between the baffle ring 1, the gas jacks up the compression springs 1-17, the gas passes through a large space to buffer the gas flow, and the gas flow uniformly flows out from a gap I between the shaft sleeve 1-2, the gas seal boss I1-3, the shell 1-1 and the gas seal boss II 1-4 to form a gas film I, so that the gas seal is realized; a stable gas film I with uniform thickness is formed between the shaft sleeve 1-2 and the adjusting ring 1-8, gas can uniformly flow out through the upper end and the lower end of the vertical transmission shaft 2, and the pressure of the input dry dust-free gas is greater than that of the dry dust-free gas in the high-low temperature box 6, so that the dry dust-free gas in the high-low temperature box 6 is prevented from overflowing, and a good sealing effect is achieved; the compression springs 1-17 finally compress the adjusting rings 1-8, so that sufficient pressure intensity of the air film I during initial rotation can be ensured, and the air film is favorable for maintaining the stability of the air film I; the horizontal transmission shaft 2 penetrates through the air sealing device 1 to be connected with equipment inside the high-low temperature box 6, the air sealing device 1 is connected with a longitudinal two-degree-of-freedom motion air floatation 4 into a whole through a connecting device 3, the longitudinal two-degree-of-freedom motion air floatation 4 is communicated with external air supply equipment through one end of an air delivery pipe I4-5, the other end of the longitudinal two-degree-of-freedom motion air floatation 4 is communicated with a transmission channel I4-4, the transmission channel I4-4 is uniformly distributed with output holes I4-6 along the circumferential direction of the longitudinal two-degree-of-freedom motion air floatation 4, the air output end of the output holes I4-6 is fixed air floatation 5, copper sleeve nozzles I4-7 with the aperture of 0.2mm are arranged inside the output holes I4-6, the copper sleeve nozzles I4-7 uniformly inject air to the fixed air floatation 5 to form an air film II in a gap II, the fixed air, the other end of the gas pipe II 5-5 is communicated with the transmission channel II 5-4, the transmission channel II 5-4 is uniformly distributed with output holes II 5-6 along the circumferential direction of the fixed air flotation 5, the gas output end of the output holes II 5-6 is a longitudinal two-degree-of-freedom motion air flotation 4, copper sleeve nozzles II 5-7 with the aperture of 0.2mm are arranged inside the output holes II 5-6, the copper sleeve nozzles II 5-7 uniformly inject air to the fixed air flotation 4 to form an air film II in the clearance II, the longitudinal two-degree-of-freedom motion air flotation 4 and the fixed air flotation 5 are blown into each other through external air supply equipment to form an air film II in the gap II, the air seal device 1 is driven by a connecting device 3 to suspend on the side surface of a high-low temperature box 6 by air pressure to move air floatation 4 with two longitudinal degrees of freedom through air pressure, and the air seal device moves freely on a plane with two degrees of freedom in the directions of a Z axis and a Y axis; when the servo motor I7-1 rotates, an output shaft of the servo motor I7-1 drives the screw rod I7-2 to rotate by taking the axis of the screw rod I7-2 as the center, the screw rod I7-2 drives the moving plate 7-3 to move in the axis direction of the screw rod I7-2, the two moving plates 7-3 drive the moving platform 7-4 to move in the axis direction of the screw rod I7-2, the servo motor III drives the synchronous belt 7-5 to move when rotating, the synchronous belt 7-5 drives the lifting hook 7-6 fixedly connected with the synchronous belt 7-5 to move, the relative position of the lifting hook 7-6 on the synchronous belt 7-5 is changed, when the servo motor II 7-11 rotates, an output shaft of the servo motor II 7-11 drives the screw rod II 7-12 to rotate by taking the axis of the, the screw II 7-12 drives the screw nut seat 7-14 to move in the axial direction of the screw II 7-12, the screw nut seat 7-14 drives the lifting hook 7-6 fixedly connected with the screw nut seat to move, the relative position of the lifting hook 7-6 on the synchronous belt 7-5 is changed, the relative position change of the three lifting hooks 7-6 drives the change of the position of the longitudinal plane moving air floatation 4 on the base air floatation 5, and the three non-lifting hooks 7-6 are not contacted with the lifting hook suspension bosses 4-9 through the magnetic force generated between the magnets II 7-15 and the magnets I4-11; the gravity of the air seal device 1 and the gravity of the longitudinal plane moving air float 4 are balanced through the longitudinal plane triangular lifting hook device 7, meanwhile, dry dust-free gas is provided by external air supply equipment, the dry dust-free gas enters the air conveying grooves 7-8 through the air conveying pipes III 7-7 on the outer walls of the three lifting hooks 7-6 and is uniformly sprayed out from the copper sleeve nozzles III 7-10 to form air pressure in the gaps III, the balance longitudinal plane moving air float 4 is subjected to the air pressure transmitted by the base air float 5 in the horizontal direction, and the longitudinal plane moving air float 4 and the air seal device 1 can be stabilized in the vertical direction.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims (10)

1. The utility model provides a high low-temperature box horizontal three degree of freedom low-speed case axle gas seal device that wears, includes gas seal device (1), transverse transmission shaft (2), connecting device (3), vertical two degree of freedom motion air supporting (4), base air supporting subassembly (5), high low-temperature box (6) and vertical plane triangle hook assembly (7), its characterized in that: the air sealing device (1) comprises a shell (1-1), a shaft sleeve (1-2), an air sealing boss I (1-3), an air sealing boss II (1-4) and an adjusting ring (1-8), the upper end of the shell (1-1) is fixedly connected with the air sealing boss II (1-4), the lower end of the shaft sleeve (1-2) is fixedly connected with the air sealing boss I (1-3), the shell (1-1), the shaft sleeve (1-2), the air sealing boss I (1-3) and the air sealing boss II (1-4) form an annular space, the adjusting ring (1-8) is arranged in the annular space, a gap I exists between the adjusting ring (1-8) and the shell (1-1), between the shaft sleeve (1-2) and the air sealing boss I (1-3), and the gap I forms an air film I under the air supply of the air supply device, the air pressure in the air film I is higher than that in the high-low temperature box (6), the transverse transmission shaft (2) is in interference fit with the shaft sleeve (1-2), the inner side of the connecting device (3) is fixedly connected with the air sealing device (1), the outer side of the connecting device (3) is fixedly connected with the transverse two-degree-of-freedom motion air flotation device (4), the base air flotation component (5) is fixedly connected with the high-low temperature box (6), a gap II exists between the longitudinal two-degree-of-freedom motion air flotation device (4) and the base air flotation component (5), the gap II forms an air film II under the air supply of the air supply device, the high-low temperature box (6) is fixedly connected with a longitudinal plane triangular hook device (7), a gap III is formed between the inner side of the longitudinal plane triangular hook device (7) and the longitudinal two-degree-of-freedom motion air flotation device (4), the gap III forms an air film III under the air supply of the air supply device, the air pressure in the air film II The vertical surface of the side end of the component (5).
2. The high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device as claimed in claim 1, wherein: the air sealing device (1) further comprises an air guide pipe (1-5), a through hole (1-6), an air plug (1-7), an annular groove I (1-9), a honeycomb-shaped sealing ring I (1-10), an air vent (1-11), a honeycomb-shaped sealing ring II (1-12), an annular groove II (1-13), a honeycomb-shaped sealing ring III (1-14), a baffle ring (1-15), a separating ring (1-16) and a compression spring (1-17), the shell (1-1) is provided with the through hole (1-6), the air guide pipe (1-5) penetrates through the shell (1-1) and is communicated with the through hole (1-6), the air guide pipe (1-5) is connected with an air supply device, the air plug (1-7) is arranged in the through hole (1-6), the annular groove I (1-9) is arranged on an adjusting ring (1-8, the ring groove I (1-9) is communicated with the through hole (1-6), two honeycombed sealing rings I (1-10) are arranged on the outer sides of the adjusting rings (1-8), the two honeycombed sealing rings I (1-10) are respectively positioned on the left side and the right side of the ring groove I (1-9), a plurality of vent holes (1-11) are arranged on the left side of the adjusting rings (1-8), the right ends of the vent holes (1-11) are communicated with the ring groove I (1-9), the left ends of the vent holes (1-11) are communicated with gaps I between the air sealing bosses I (1-3) and the adjusting rings (1-8), honeycombed sealing rings II (1-12) and ring grooves II (1-13) are arranged on the outer sides of the left ends of the adjusting rings (1-8), and honeycombed sealing rings III (1-14) are arranged on the inner sides of the right ends of the adjusting rings, the honeycomb-shaped sealing ring III (1-14) is provided with a baffle ring (1-15), the baffle ring (1-15) is connected with a separating ring (1-16), and a compression spring (1-17) is arranged between the separating ring (1-16) and the air seal boss II (1-4).
3. The high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device as claimed in claim 2, wherein: the compression springs (1-17) are in a compressed state, and the axes of the air guide pipes (1-5) and the air vents (1-11) are parallel to the axis of the shell (1-1).
4. The high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device as claimed in claim 2, wherein: the corners of the mutually corresponding parts among the shell (1-1), the shaft sleeve (1-2), the air seal boss I (1-3), the air seal boss II (1-4), the adjusting ring (1-8) and the separating ring (1-16) are all rounded corners.
5. The high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device as claimed in claim 4, wherein: the connecting device (3) comprises a gasket I (3-1), a gasket II (3-2) and circular rubber (3-3), and a bolt I sequentially penetrates through the air seal boss II (1-4) and the circular rubber (3-3) to be fixedly connected to the gasket I (3-1).
6. The high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device as claimed in claim 5, wherein: the longitudinal two-degree-of-freedom motion air floatation (4) comprises a moving air floatation cover (4-1), a moving air floatation (4-2), a sealing rubber ring I (4-3), a transmission channel I (4-4), an air conveying pipe I (4-5), an output hole I (4-6), a copper sleeve nozzle I (4-7), a limiting baffle ring (4-8), a hook suspension boss (4-9), marble (4-10) and a magnet I (4-11), a bolt II sequentially penetrates through the moving air floatation (4-2), the moving air floatation cover (4-1) and circular rubber (3-3) and is fixedly connected to a gasket II (3-2), a bolt III sequentially penetrates through the moving air floatation (4-2) and the moving air floatation cover (4-1) and is fixedly connected to the moving air floatation cover (4-1), two sealing rubber rings I (4-3) are arranged between the movable air floating cover (4-1) and the movable air floating cover (4-2), a transmission channel I (4-4) is arranged on the right side of the movable air floating cover (4-2), the two sealing rubber rings I (4-3) are coaxially arranged with the transmission channel I (4-4), the inner diameter and the outer diameter of the transmission channel I (4-4) are respectively positioned between the two sealing rubber rings I (4-3), a plurality of output holes I (4-6) are arranged, the plurality of output holes I (4-6) are uniformly distributed along the circumferential direction of the transmission channel I (4-4), the plurality of output holes I (4-6) are respectively communicated with the transmission channel I (4-4), copper sleeve nozzles I (4-7) are fixedly connected in the plurality of output holes I (4-6), air supply pipe I (4-5) passes through removal air supporting lid (4-1) and transmission channel I (4-4) intercommunication, be connected with air supply equipment on air supply pipe I (4-5), the inboard fixedly connected with spacing fender ring (4-8) of removal air supporting (4-2) left end, fixedly connected with lifting hook suspension boss (4-9) on removal air supporting lid (4-1), fixedly connected with marble (4-10) on removal air supporting lid (4-1), the inboard fixedly connected with magnet I (4-11) of lifting hook suspension boss (4-9).
7. The high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device as claimed in claim 6, wherein: the base air floatation assembly (5) comprises a base (5-1), a base air floatation (5-2), a sealing rubber ring II (5-3), a transmission channel II (5-4), a gas conveying pipe II (5-5), an output hole II (5-6) and a copper sleeve nozzle II (5-7), screws sequentially penetrate through the base (5-1) and the base air floatation (5-2) and are fixedly connected to the high-low temperature box (6), two sealing rubber rings II (5-3) are arranged between the base (5-1) and the base air floatation (5-2), the transmission channel II (5-4) is arranged on the base (5-1), the two sealing rubber rings II (5-3) and the transmission channel II (5-4) are coaxially arranged, and the inner diameter and the outer diameter of the transmission channel II (5-4) are both positioned between the two sealing rubber rings II (5-3), the gas pipe II (5-5) penetrates through the base (5-1) to be communicated with the transmission channel II (5-4), gas supply equipment is connected to the gas pipe II (5-5), a plurality of output holes II (5-6) are arranged, the output holes II (5-6) are uniformly distributed along the circumferential direction of the transmission channel II (5-4), the output holes II (5-6) are communicated with the transmission channel II (5-4), copper sleeve nozzles II (5-7) are fixedly connected to the interior of the output holes II (5-6), and a gap II is formed between the base (5-1) and the movable air flotation channel (4-2).
8. The high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device as claimed in claim 7, wherein: the axial homogeneous phase of a plurality of output holes II (5-6) is perpendicular to the transmission channel II (5-4), the inner diameter of the base air flotation (5-2) is equal to the inner diameter of the high-low temperature box (6), the axial homogeneous phase of a plurality of output holes I (4-6) is perpendicular to the transmission channel I (4-4), the inner diameter of the relative transmission channel I (4-4) is larger than the outer diameter of the transmission channel II (5-4), and the vertical position of the left end of the limiting baffle ring (4-8) is located on the left side of the vertical position of the right end of the base air flotation (5-2).
9. The high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device as claimed in claim 8, wherein: the longitudinal plane triangular lifting hook device (7) comprises a servo motor I (7-1), a screw rod I (7-2), a moving plate (7-3), a moving platform (7-4), a synchronous belt (7-5), a lifting hook (7-6), a gas conveying pipe III (7-7), a gas conveying groove (7-8), an output hole III (7-9), a copper sleeve nozzle III (7-10), a servo motor II (7-11), a screw rod II (7-12), a sliding platform (7-13), a screw rod nut seat (7-14) and a magnet II (7-15), wherein the servo motor I (7-1) is provided with two motors I (7-1), the two motors I (7-1) are fixedly connected to a high-low temperature box (6), the output shafts of the two motors I (7-1) are fixedly connected with the screw rod I (7-2), two screw rods I (7-2) are respectively connected with a moving plate (7-3) through threads, the two moving plates (7-3) are respectively and fixedly connected with two ends of a moving platform (7-4), a servo motor III is fixedly connected on the moving platform (7-4), a synchronous belt (7-5) is in transmission connection with an output shaft of the servo motor III, a lifting hook (7-6) is fixedly connected on the synchronous belt (7-5), two servo motors II (7-11) are arranged, screw rods II (7-12) are respectively and fixedly connected on output shafts of the two servo motors II (7-11), screw rod nut seats (7-14) are respectively and fixedly connected on the two screw rods II (7-12) through threads, two sliding platforms (7-13) are arranged, and the two screw rod nut seats (7-14) are respectively and fixedly connected on the two sliding platforms (7-13), lifting hooks (7-6) are fixedly connected to the two screw rod nut seats (7-14), three lifting hooks (7-6) are arranged, gas conveying pipes III (7-7) are connected to the three lifting hooks (7-6), gas supply equipment is connected to the three gas conveying pipes III (7-7), gas conveying grooves (7-8) are connected to the three lifting hooks (7-6), the three gas conveying pipes III (7-7) are respectively communicated with the three gas conveying grooves (7-8), a plurality of output holes III (7-9) are arranged on the three lifting hooks (7-6), copper sleeve nozzles III (7-10) are fixedly connected to the interior of each output hole III (7-9), one end of each copper sleeve nozzle III (7-10) is communicated with the corresponding gas conveying groove (7-8), the outlet end of each copper sleeve nozzle III (7-10) is marble (4-10), the outer sides of the three lifting hooks (7-6) are fixedly connected with magnets II (7-15), the three magnets II (7-15) correspond to the magnets I (4-11), and gaps III exist between the three lifting hooks (7-6) and the lifting hook suspension bosses (4-9).
10. The high and low temperature box transverse three-degree-of-freedom low-speed box passing shaft gas sealing device as claimed in claim 9, wherein: the three lifting hooks (7-6) are arranged in a regular triangle on the right side of the longitudinal two-degree-of-freedom motion air flotation (4).
CN201910296454.0A 2019-04-13 2019-04-13 High-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device Active CN109973662B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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

Publications (2)

Publication Number Publication Date
CN109973662A CN109973662A (en) 2019-07-05
CN109973662B true CN109973662B (en) 2020-06-02

Family

ID=67084452

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910296454.0A Active 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

Country Status (1)

Country Link
CN (1) CN109973662B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH051531A (en) * 1991-06-21 1993-01-08 Honda Motor Co Ltd Adiabatic clamping structure
CN101749427A (en) * 2008-12-04 2010-06-23 上海通用风机股份有限公司 Conveniently-detached floating rotary shaft seal
CN201934673U (en) * 2011-02-17 2011-08-17 俞龙海 High-temperature harmful gas sealing device with sliding rod
CN105202197A (en) * 2015-10-16 2015-12-30 长安大学 Gas seal structure and gas seal method of vibratory mixer
CN107725784B (en) * 2017-09-05 2019-10-25 西安理工大学 A kind of long-life low leakage finger tip-high temperature fluid medium combination sealing arrangement
CN108223798B (en) * 2017-12-26 2020-01-14 中国航发四川燃气涡轮研究院 Fingertip sealing device with core part hollowed-out fingertip pieces

Also Published As

Publication number Publication date
CN109973662A (en) 2019-07-05

Similar Documents

Publication Publication Date Title
CN109973662B (en) High-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device
CN103183201A (en) Adsorption device
CN203743208U (en) Aerostatic gas bearing
CN208548815U (en) Horizontal permanent-magnetic synchronizes submersible motor kludge production platform
CN104646261A (en) Reverse carrying device for moving coil of vibrating table and vibrating table comprising the reverse carrying device
CN109990097B (en) Three-degree-of-freedom high-low temperature box vertical low-speed box penetrating shaft gas sealing device
CN104874894B (en) Portable communicated-hole numerically-controlled cutting machine
CN207757693U (en) A kind of wide-angle band corner cutting roller type cutter device
CN110005821B (en) High-low temperature box transverse four-degree-of-freedom box penetrating shaft gas sealing device
CN112498035B (en) Portable triphibian mobile robot of land, water and air
CN102062125B (en) Air type position compensation device
CN204175815U (en) Bearing support assembly
CN204694402U (en) A kind of cantilever rotor whole dynamic balance frock
CN208086012U (en) A kind of unmanned plane of taking photo by plane with self-lubricate function
CN101279172B (en) Air tightness rotating backblowing device for cloth bag dust remover
CN216556447U (en) Constant-pressure constant-speed special gas supply system
CN205023088U (en) Production line work box
CN203272448U (en) Frictionless rotatable supplied-air floatation device
CN203725359U (en) Vibrostand moving-coil reverse bearing device and vibrostand comprising same
CN103047284A (en) Rotary air supply device capable of supplying air in series
CN201652723U (en) Single centrifugal fan type and double centrifugal fan type current equalizing clean cover
CN103819294A (en) machine for removing multiple basic detonator
CN203544343U (en) Base system of autonomous underwater vehicle funnel-shaped inlet docking platform
CN109973661B (en) Four-degree-of-freedom high-low temperature box vertical box penetrating shaft gas sealing device
CN204674690U (en) A kind of Climbing Robot adopting depression generator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant