CN103240588A - Hydraulic axial load device for airplane air circulator rotating components - Google Patents
Hydraulic axial load device for airplane air circulator rotating components Download PDFInfo
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- CN103240588A CN103240588A CN2013101439577A CN201310143957A CN103240588A CN 103240588 A CN103240588 A CN 103240588A CN 2013101439577 A CN2013101439577 A CN 2013101439577A CN 201310143957 A CN201310143957 A CN 201310143957A CN 103240588 A CN103240588 A CN 103240588A
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Abstract
The invention discloses a hydraulic axial load device for airplane air circulator rotating components. The hydraulic axial load device comprises a hydraulic supply unit, an axial load action unit and a public pull-rod elongation detecting unit, wherein the axial load action unit is connected with a public pull rod of an air circulator rotating component to be detected, the hydraulic supply unit is communicated with the axial load action unit and supplies hydraulic power for the same, the axial load action unit moves to elongate the public pull rod under the hydraulic action, the public pull rod elongation detecting unit is provided with a dial indicator installed above the axial load action unit and contacts with the same, the axial load action unit pushes the dial indicator during moving, and elongation of the pull rod after elongation can be obtained by reads of the dial indicator. The hydraulic axial load device can apply axial load on the airplane circulator rotating components and can reliably acquire accurate elongation of the public pull rod.
Description
Technical field
The present invention relates to a kind of disassemblerassembler of aircraft components, specifically refer to a kind of aircraft air cycle machine rotary components hydraulic axial load device.
Background technology
The air-conditioning cycle refrigeration system of modern aircarrier aircraft mainly contains two kinds of forms: low pressure dewater refrigeration system and high pressure water separation regenerative air cycle cooling system refrigeration system, the main flow aircarrier aircraft has all adopted the air circulation refrigeration system of high pressure water separation regenerative air cycle cooling system, it comprises the compression air supply source, primary heat exchanger, second level heat exchanger, condenser, reheater, separator, annexes such as air cycle machine.Air feed behind compressor and the second level heat exchanger, through the hot limit of reheater, condenser, separator and the cold limit of reheater, flows into the cooling turbine swell refrigeration, for air-conditioning system provides cold air through primary heat exchanger earlier again.In air circulation refrigeration system, the main effect of fan is the load as consumption turbine merit, attaches to be the cold limit exhausting of aforesaid two heat exchangers, takes away corresponding heat.In fact, compressor, cooling turbine, fan are coaxial one, are the rotary components of air cycle machine.
The air cycle machine of the air circulation refrigeration system of high pressure water separation regenerative air cycle cooling system, the rotary components that it has adopted foil air bearing to support.Typical aircraft air cycle machine rotary components as shown in Figure 1 in the prior art, it consists of parts such as fan 01, fan shaft 02, compressor 03, thrust shaft 04, turbine 05, lock nut 06, pad 07 and public pull bar 08, by public pull bar 08, each part is locked together by the lock nut 06 at public pull bar 08 two ends, forms an integral body.The rotary components rotary speed height that foil air bearing supports, refrigerating capacity is strong, and the coupling mechanism force of the corresponding lock nut 06 that requires is also very big, even reaches 10 ton forces.After finishing assembling, it also need measure the tensile elongation of public pull bar 08, guarantees that not only the axial tension that public pull bar provides can link together all annexes securely, and can not cause too much elongation to cause public pullup acceleration.One if adopt common spanner, and sleeve barrel tool can't be competent at the work that tightens of lock nut at all; The two adopts length respectively the length before and after the public pull bar extension to be measured apart from slide calliper rule in the past, easily because of the people, and thing, reasons such as thing need repeatedly be done over again; The flexible pipe that the three adopts in the past is single flexible pipe, when changing other type air cycle machines of repairing, at every turn all will be from Axial Loads unit dismounting flexible pipe, be installed on other Axial Loads unit, take time and effort very much, therefore must research and develop a kind of integrated special equipment, reach dismounting safely and fast, work the purpose of raising the efficiency accurately and reliably.
Summary of the invention
The purpose of this invention is to provide a kind of aircraft air cycle machine rotary components hydraulic axial load device, this device applies axial load not only can for aircraft air cycle machine rotary components, and can obtain public pull bar elongation accurately reliably.
This purpose of the present invention realizes by following technical solution: a kind of aircraft air cycle machine rotary components hydraulic axial load device, it is characterized in that: this axial load device comprises the hydraulic pressure feeding unit, Axial Loads unit and public pull bar elongation detecting unit, the Axial Loads unit is connected with the public pull bar of air cycle machine rotary components to be measured, described hydraulic pressure feeding unit is connected with the Axial Loads unit, provide hydraulic power to the Axial Loads unit, the Axial Loads unit is mobile under hydraulic action, thereby elongate public pull bar, described public pull bar elongation detecting unit has dial gauge, described dial gauge is installed in the top of Axial Loads unit, and contact with the Axial Loads unit, the Axial Loads unit pushes dial gauge in moving process, the reading by dial gauge can obtain the elongation after described public pull bar elongates.
Described hydraulic pressure feeding unit comprises hydraulic hand-pump, hydraulic gage switching piece, hydraulic gage, hydraulic hose and adapter, described hydraulic hand-pump has the hand-hydraulic shut-off valve, described hydraulic gage switching piece is connected the hydraulic pressure output port of described hydraulic hand-pump, described hydraulic gage is installed on the described hydraulic gage switching piece, the hydraulic pressure output pressure that is used for the monitoring hydraulic hand-pump, described hydraulic hose is connected between described hydraulic gage switching piece and the described adapter, described adapter links to each other with Axial Loads unit screw thread, and is connected.
Described Axial Loads unit comprises public pull rod screw puller, last hydraulic pressure cover cap, following hydraulic pressure cover cap, endless screw unit and helical gear drive sleeve unit, the two ends of described public pull bar are and have externally threaded screw rod, the described hydraulic pressure cover cap of going up is for covering the double-layered cylinder structure of shape, has integrated inner core, urceolus and top cover, the middle has circular central through hole, described inner core and urceolus are connected to an integral body in the upper end by top cover, the length that the length that urceolus extends is downwards extended downwards greater than inner core, has the annular gap between the outside wall surface of inner core and the internal face of urceolus, inner core has the inner chamber that is connected with central through hole, the diameter of interior tube inner chamber is greater than the diameter of central through hole, described top cover offers a tapered thread through hole that parallels with central through hole in the zone between inner core and urceolus, the upper shed of this tapered thread through hole is connected with described adapter, under shed is connected with described annular gap, the oblique inclined hole that offers a circle also on the described top cover, the inwall of this inclined hole break-through inner core is with the intracavity inter-connection of inner core; Described hydraulic pressure cover cap down has the columnar structured of inner chamber for the centre, following hydraulic pressure cover cap is inserted in the annular gap of hydraulic pressure cover cap, remaining space, annular gap was after following hydraulic pressure cover cap was inserted into the annular gap of hydraulic pressure cover cap, the seal cavity that forms between the following hydraulic pressure cover cap, hydraulic oil is in the tapered thread through hole enters the sealing space, described hydraulic pressure cover cap down offers seal groove at the position that is positioned at the annular gap scope, sealing ring is installed in the seal groove, sealing in the realization between hydraulic pressure cover cap and the following hydraulic pressure cover cap, the described inner chamber of hydraulic pressure cover cap down and the intracavity inter-connection of inner core, form a whole chamber, the described outer rim place, bottom of hydraulic pressure cover cap down is provided with the otic placode of annular, offers a plurality of installing holes on the otic placode; Described public pull rod screw puller is the rounding tapered structure, this public pull rod screw puller is inserted in the central through hole of hydraulic pressure cover cap, and the lower end extend in the described whole chamber, the bottom of public pull rod screw puller offers the internal thread hole that the screw rod with public pull bar top is complementary, and is connected with public pull rod screw by this internal thread hole; Described helical gear drive sleeve unit comprises annular helical gear and the drive sleeve of hollow, described helical gear and drive sleeve all are positioned at described whole chamber, and the lower end of the described public pull rod screw puller of ring set, wherein, described helical gear horizontally set, described drive sleeve is the vertical inverted cone-shaped structure that arranges, the V-type through hole is opened in the centre, the top of drive sleeve has the ladder platform, described helical gear be sleeved on this ladder platform and with ladder platform interference fit, the bottom of described drive sleeve offers the inner hexagonal hole that the locking nut with the public pull bar top suit of air cycle machine rotary components is complementary, and is sleeved on the locking nut by this inner hexagonal hole; Described endless screw unit comprises be connected all-in-one-piece swingle and worm screw, swingle be inserted in the inclined hole of hydraulic pressure cover cap after worm screw is connected, wherein, worm screw is positioned at inclined hole, be meshed with the helical gear of helical gear drive sleeve unit, swingle exposes to outside the inclined hole of hydraulic pressure cover cap, and swingle drives helical gear by worm screw and rotates in rotation process; Hydraulic oil enters the seal cavity pressurization that forms between the upper and lower hydraulic pressure cover cap through the tapered thread through hole under hydraulic action, described hydraulic pressure cover cap down moves up under hydraulic action, spurs public pull rod screw puller synchronously to move up, thereby elongates public pull bar.
Described hydraulic pressure cover cap down respectively offers the seal groove of an annular on the outer surface that is positioned at the annular gap scope and internal face, described sealing ring is two, and correspondence is installed in the seal groove.
Described helical gear inner cylinder face evenly offers four semicircle orifices, the external cylindrical surface of the ladder platform at described drive sleeve top and helical gear four semicircle orifice opposite position places also offer four semicircle orifices, helical gear is sleeved on behind the ladder platform of drive sleeve equal with the top end face of drive sleeve neat, and equal split pin of plug-in mounting is to reinforce in four circular holes of the involutory formation of four semicircle orifices of helical gear four semicircle orifices and drive sleeve, each circular hole.
Described endless screw unit also comprises urceolus, bearing and bearing cushion block, bearing and bearing cushion block are sleeved on the swingle with the series connection shape from left to right, worm set is contained in the right-hand member of swingle, and contact with the bearing cushion block, urceolus also is sleeved on the swingle, and be positioned at the periphery of bearing and bearing cushion block, coat described bearing and bearing cushion block, described swingle, worm screw and urceolus three's corresponding position all offers a pin-and-hole, after the opening pin passes the pin-and-hole of urceolus, be inserted into swingle, in the pin-and-hole of worm screw, worm screw and swingle are linked into an integrated entity, described urceolus is fastened in the inclined hole of hydraulic pressure cover cap by holding screw.
Described public pull bar elongation detecting unit comprises left vertical support bar, right vertical support piece, horizontal gird, open cylinders sleeve and holding screw, described left vertical support bar is the identical montant of structure with right vertical support bar, the upper end of left side vertical support bar and right vertical support bar all is connected with horizontal gird, the lower end of left side vertical support bar and right vertical support bar all is connected with the otic placode of following hydraulic pressure cover cap, the horizontal plane middle of described horizontal gird has a cylindrical hole, the vertical plane middle of horizontal gird has a tapped through hole, described open cylinders sleeve is installed in the described cylindrical hole, described dial gauge is installed in the described open cylinders sleeve, and over against described public pull rod screw puller, the indicator of described dial gauge contacts with the top of public pull rod screw puller, described holding screw passes tapped through hole and presses on above the open cylinders sleeve, dial gauge is fixed on the horizontal gird, and the amount of movement of public pull rod screw puller is read by dial gauge.
The upper end of described left vertical support bar and right vertical support bar all is connected by screw with horizontal gird, and the lower end of left vertical support bar and right vertical support bar all is connected by screw with the otic placode of following hydraulic pressure cover cap.
Aircraft air cycle machine rotary components hydraulic axial load device of the present invention applies axial load can for aircraft air cycle machine rotary components, and the public pull bar elongation that measures accurately and reliably.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the overall structure figure of aircraft air cycle machine rotary components;
Fig. 2 is the overall structure figure of axial load device of the present invention;
Fig. 3 is the use state reference map of axial load device of the present invention;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the part drawing of public pull rod screw puller in the axial load device of the present invention;
Fig. 6 is the part drawing of going up the hydraulic pressure cover cap in the axial load device of the present invention, and the hydraulic pressure cover cap is in inversion state on this moment;
Fig. 7 is the vertical view that Fig. 6 has partial cutaway;
Fig. 8 is A-A echelon sectional view of Fig. 7;
Fig. 9 is the vertical view of following hydraulic pressure cover cap in the axial load device of the present invention;
Figure 10 is B-B cutaway view of Fig. 9;
Figure 11 is the installation diagram of endless screw unit in the axial load device of the present invention;
Figure 12 is the explosive view of Figure 11;
Figure 13 is the installation diagram of helical gear drive sleeve unit in the axial load device of the present invention;
Figure 14 is helical gear part drawing in the axial load device of the present invention;
Figure 15 is the left view of Figure 14;
Figure 16 is the part drawing of drive sleeve in the axial load device of the present invention;
Figure 17 is the left view of Figure 16;
Figure 18 be in the axial load device of the present invention horizontal gird face part drawing;
Figure 19 be in the axial load device of the present invention horizontal gird overlook part drawing;
Figure 20 is the part drawing of axial load device split shed cylindrical sleeves of the present invention;
Figure 21 is the vertical view of Figure 20,
Figure 22 is the part drawing of holding screw in the axial load device of the present invention.
Description of reference numerals
01, fan; 02, fan shaft; 03, compressor; 04, thrust shaft; 05, turbine;
06, lock nut; 07, pad; 08, public pull bar;
11, hydraulic hand-pump; 12, hydraulic gage switching piece; 13, hydraulic gage;
14, coupling quick-release butt joint hydraulic hose; 15 adapters;
21, public pull rod screw puller; 211, internal thread hole; 22, go up the hydraulic pressure cover cap; 221, inner core;
222, urceolus; 223, top cover; 224, central through hole; 225, annular gap; 226, inner chamber;
227, tapered thread through hole; 228, inclined hole; 23, following hydraulic pressure cover cap; 231, inner chamber; 24, sealing ring;
25, endless screw unit; 251, urceolus; 252, swingle; 253, worm screw; 254, bearing;
255, bearing cushion block; 26, helical gear drive sleeve unit; 261, helical gear; 262, drive sleeve;
263, positive inner hexagonal hole; 31, dial gauge; 32, left vertical support bar; 33, right vertical support piece;
34, horizontal gird; 341, cylindrical hole; 342, tapped through hole 35, open cylinders sleeve;
36, holding screw
The specific embodiment
As Fig. 2 to a kind of aircraft air cycle machine rotary components hydraulic axial load device shown in Figure 20, this axial load device comprises the hydraulic pressure feeding unit, Axial Loads unit and public pull bar elongation detecting unit, the Axial Loads unit is connected with the public pull bar 08 of air cycle machine rotary components to be measured, the hydraulic pressure feeding unit is connected with the Axial Loads unit, provide hydraulic power to the Axial Loads unit, the Axial Loads unit is mobile under hydraulic action, thereby elongate public pull bar 08, public pull bar elongation detecting unit has dial gauge 31, dial gauge 31 is installed in the top of Axial Loads unit, and contact with the Axial Loads unit, the Axial Loads unit pushes dial gauge in moving process, the reading by dial gauge can obtain the elongation after public pull bar 08 elongates.
Described hydraulic pressure feeding unit comprises hydraulic hand-pump 11, hydraulic gage switching piece 12, hydraulic gage 13, hydraulic hose and adapter 15, hydraulic hand-pump 11 has the hand-hydraulic shut-off valve, hydraulic gage switching piece 12 is connected the hydraulic pressure output port of hydraulic hand-pump 11, hydraulic gage 13 is a mechanical analogue table, hydraulic gage 13 is installed on the hydraulic gage switching piece 12, the hydraulic pressure output pressure that is used for monitoring hydraulic hand-pump 11, hydraulic hose is connected between hydraulic gage switching piece 12 and the adapter 15, adapter 15 links to each other with Axial Loads unit screw thread, and is connected.Described hydraulic hose is coupling quick-release butt joint hydraulic hose 14, and coupling quick-release butt joint hydraulic hose 14 refers to and will be divided into two to the hydraulic hose the adapter 15 from hydraulic gage switching piece 12, and uses the quick-release coupling to transfer in separation place.
Described Axial Loads unit comprises public pull rod screw puller 21, last hydraulic pressure cover cap 22, following hydraulic pressure cover cap 23, endless screw unit 25 and helical gear drive sleeve unit 26, the two ends of public pull bar 08 are and have externally threaded screw rod, last hydraulic pressure cover cap 22 is for covering the double-layered cylinder structure of shape, has integrated inner core 221, urceolus 222 and top cover 223, the middle has circular central through hole 224, inner core 221 and urceolus 222 are connected to an integral body in the upper end by top cover 223, the length that the length that urceolus 222 extends is downwards extended downwards greater than inner core 221, has annular gap 225 between the internal face of the outside wall surface of inner core 221 and urceolus 222, inner core 221 has the inner chamber 226 that is connected with central through hole 224, the diameter of inner core 221 inner chambers is greater than the diameter of central through hole 224, top cover 223 offers a tapered thread through hole 227 that parallels with central through hole 224 in the zone between inner core 221 and urceolus 222, the upper shed of this tapered thread through hole 227 is connected with adapter 15, under shed is connected with annular gap 225, the oblique inclined hole 228 that offers a circle also on the top cover 223, the inwall of these inclined hole 228 break-through inner cores 221, be connected with the inner chamber 226 of inner core 221, the bottom position of inclined hole 228 is a little concentric ladder circular hole, and inclined hole is used for installing endless screw unit 25; Following hydraulic pressure cover cap 23 has the columnar structured of inner chamber 231 for the centre, following hydraulic pressure cover cap 23 is inserted in the annular gap 225 of hydraulic pressure cover cap 22, the 225 remaining spaces, annular gap, 225 back, annular gap that following hydraulic pressure cover cap 23 is inserted into hydraulic pressure cover cap 22 are, the seal cavity that forms between the following hydraulic pressure cover cap, hydraulic oil is in tapered thread through hole 227 enters the sealing space, following hydraulic pressure cover cap 23 offers seal groove at the position that is positioned at annular gap 225 scopes, sealing ring 24 is installed in the seal groove, sealing in the realization between hydraulic pressure cover cap 22 and the following hydraulic pressure cover cap 23, the concrete set-up mode of seal groove and sealing ring 24 is: following hydraulic pressure cover cap 23 respectively offers the seal groove of an annular on the outer surface that is positioned at annular gap 225 scopes and internal face, sealing ring 24 is two, correspondence is installed in the seal groove, sealing ring 24 further strengthens going up the sealing effectiveness between hydraulic pressure cover cap 22 and the following hydraulic pressure cover cap 23, the inner chamber 231 of following hydraulic pressure cover cap 23 is connected with the inner chamber 226 of inner core 221, form a whole chamber, the outer rim place, bottom of following hydraulic pressure cover cap 23 is provided with the otic placode of annular, offers four installing holes on the otic placode; Public pull rod screw puller 21 is the rounding tapered structure, the top is the annular knurl cap of positive turret head, this public pull rod screw puller 21 is inserted in the central through hole 224 of hydraulic pressure cover cap 22, and the lower end extend in the whole chamber, the bottom of public pull rod screw puller 21 offers the internal thread hole 211 that the screw rod with public pull bar 08 top is complementary, and is threaded with public pull bar 08 by this internal thread hole 211; Helical gear drive sleeve unit 26 comprises annular helical gear 261 and the drive sleeve 262 of hollow, helical gear 261 and drive sleeve 262 all are positioned at whole chamber, and the lower end of the public pull rod screw puller 21 of ring set, wherein, helical gear 261 horizontally sets, drive sleeve 262 is the vertical inverted cone-shaped structure that arranges, the V-type through hole is opened in the centre, the top of drive sleeve 262 has the ladder platform, helical gear 261 be sleeved on this ladder platform and with ladder platform interference fit, the bottom of drive sleeve 262 offers the inner hexagonal hole 263 that the locking nut 06 with the public pull bar 08 top suit of air cycle machine rotary components is complementary, and is sleeved on the locking nut 06 by this inner hexagonal hole 263; Endless screw unit 25 comprises be connected all-in-one-piece swingle 252 and worm screw 253, swingle 252 be inserted in the inclined hole 228 of hydraulic pressure cover cap 22 after worm screw 253 is connected, wherein, worm screw 253 is positioned at inclined hole 228, be meshed with the helical gear 261 of helical gear drive sleeve unit 26, swingle 252 exposes to outside the inclined hole 228 of hydraulic pressure cover cap 22, and swingle 252 drives helical gear 261 by worm screw 253 and rotates in rotation process; Hydraulic oil enters the seal cavity pressurization that forms between the upper and lower hydraulic pressure cover cap through tapered thread through hole 227 under hydraulic action, last hydraulic pressure cover cap 22 moves up under hydraulic action, the public pull rod screw puller 21 of pulling moves up synchronously, thereby elongates public pull bar 08.
In the present embodiment, the concrete syndeton of helical gear 261 and drive sleeve 262 is: the inner cylinder face of helical gear 261 evenly offers four semicircle orifices, four semicircle orifice opposite position places of the external cylindrical surface of the ladder platform at drive sleeve 262 tops and helical gear 261 also offer four semicircle orifices, helical gear 261 is sleeved on behind the ladder platform of drive sleeve 262 equal with the top end face of drive sleeve 262 neat, and four semicircle orifices of helical gear 261 and four circular holes of the involutory formation of four semicircle orifices of drive sleeve 262, in each circular hole all split pin of plug-in mounting to reinforce.
Described public pull bar elongation detecting unit comprises left vertical support bar 32, right vertical support piece 33, horizontal gird 34, open cylinders sleeve 35 and holding screw 36, left side vertical support bar 32 is the identical montant of structure with right vertical support bar 33, the upper end of left side vertical support bar 32 and right vertical support bar 33 all is connected by two screws with horizontal gird 34, the lower end of left side vertical support bar 32 and right vertical support bar 33 all is connected by two screws with the otic placode of following hydraulic pressure cover cap 23, the horizontal plane middle of horizontal gird 34 has a cylindrical hole 341, the vertical plane middle of horizontal gird 34 has a tapped through hole 342, open cylinders sleeve 35 is installed in the cylindrical hole 341, dial gauge 31 is installed in the open cylinders sleeve 35, and over against public pull rod screw puller 21, the indicator of dial gauge 31 contacts with positive center, the top of public pull rod screw puller 21, holding screw 36 passes and is pressed on above the open cylinders sleeve after tapped through hole 342 is exerted pressure, and dial gauge 31 is fixed on the horizontal gird 34.The amount of movement of public pull rod screw puller 21 is read by dial gauge 31, and the amount of movement that public pull rod screw puller 21 makes progress is the elongation after public pull bar 08 elongates, and this elongation is directly read by dial gauge 31.
The assembling process of present embodiment axial load device is as follows:
Using special tooling to support the air cycle machine rotary components that needs lock nut vertically holds up, the lock nut of fan end is hand-tight to the fan pad along public pull rod screw, pre-push shaft to the last hydraulic pressure cover cap of load action cell on earth, then will descend the hydraulic pressure cover cap to place above the fan pad, smooth fan pad, manual helical gear drive sleeve unit, entangle the square angle head of lock nut up to it, public pull rod screw puller is installed to the screw thread of public pull bar, up to the upper surface of its contact lock nut.
The dial gauge of public pull bar elongation detecting unit is installed in the horizontal plane interstitial hole of horizontal gird, and regulate dial gauge until suitable dimension, guarantee to show the square angle head top planes that club head contacts public pull rod screw puller, and have sufficient length up to lock dial gauge above pressing on the open cylinders sleeve with screw in mobile back, it is zero that the dial gauge reading is set;
Hydraulic hand-pump is filled hydraulic oil, the shut-off valve of locking hydraulic hand-pump, apply the seal cavity that specified hydraulic coupling forms for the upper and lower hydraulic pressure cover cap of Axial Loads unit, this hydraulic coupling makes the hydraulic pressure cover cap up mobile, following hydraulic pressure cover cap moves down, and dieback is on the fan pad tightly, and under the promotion of hydraulic coupling, last hydraulic pressure cover cap promotes public pull rod screw puller and moves up, public pull bar is elongated by hydraulic coupling, and the lock nut of fan end separates with pad;
On the public pull bar of manual worm unit drives helical gear drive sleeve unit rotational air cycle machine rotary components lock nut to contact pins;
Open the shut-off valve of hydraulic hand-pump at leisure, lay down hydraulic coupling, public pull bar is elongated, and the lock nut at two bears the tension of public pull bar;
Observe the reading of dial gauge, reading should be in the scope of appraising and deciding; If reading is bigger than normal or less than normal, dismantle by following unloading process.
The unloading process of present embodiment axial load device is as follows:
The air cycle machine rotary components of needs being dismantled lock nut uses the special tooling support vertically to hold up, the hand-tight public pull rod screw of the lock nut of fan end is arrived the fan pad, pre-push shaft to the last hydraulic pressure cover cap of load action cell on earth, then will descend the hydraulic pressure cover cap to place above the fan pad, smooth fan pad, manual helical gear drive sleeve unit, entangle the square angle head of lock nut up to it, public pull rod screw puller is installed to the screw thread of public pull bar, up to the upper surface of its contact lock nut, screw thread 1.5 to 2 circles then fall back.
Hydraulic hand-pump is filled hydraulic oil, the shut-off valve of locking hydraulic hand-pump, apply the seal cavity that the hydraulic coupling bigger slightly than specified hydraulic coupling forms for the upper and lower hydraulic pressure cover cap of Axial Loads unit, this hydraulic coupling makes the hydraulic pressure cover cap up mobile, following hydraulic pressure cover cap moves down tightly dieback on the fan pad, under the promotion of hydraulic coupling, last hydraulic pressure cover cap promotes public pull rod screw puller and moves up, and public pull bar is elongated by hydraulic coupling;
Lock nut on the public pull bar of manual worm unit drives helical gear drive sleeve unit rotational air cycle machine rotary components breaks away from the fan pad, and spinning on lock nut contacts the bottom of public pull rod screw puller;
Open the shut-off valve of hydraulic hand-pump at leisure, lay down hydraulic coupling, public pull bar restores, and the lock nut at two no longer bears the tension of public pull bar;
Yi Shang assembly and disassembly process repeatedly is in the scope that the reading of the dial gauge that is used for appraising and deciding public pull bar elongation is being appraised and decided.
Claims (9)
1. aircraft air cycle machine rotary components hydraulic axial load device, it is characterized in that: this axial load device comprises the hydraulic pressure feeding unit, Axial Loads unit and public pull bar elongation detecting unit, the Axial Loads unit is connected with the public pull bar (08) of air cycle machine rotary components to be measured, described hydraulic pressure feeding unit is connected with the Axial Loads unit, provide hydraulic power to the Axial Loads unit, the Axial Loads unit is mobile under hydraulic action, thereby elongate public pull bar (08), described public pull bar elongation detecting unit has dial gauge (31), described dial gauge (31) is installed in the top of Axial Loads unit, and contact with the Axial Loads unit, the Axial Loads unit pushes dial gauge in moving process, the reading by dial gauge can obtain the elongation after described public pull bar (08) elongates.
2. aircraft air cycle machine rotary components hydraulic axial load device according to claim 1, it is characterized in that: described hydraulic pressure feeding unit comprises hydraulic hand-pump (11), hydraulic gage switching piece (12), hydraulic gage (13), hydraulic hose and adapter (15), described hydraulic hand-pump (11) has the hand-hydraulic shut-off valve, described hydraulic gage switching piece (12) is connected the hydraulic pressure output port of described hydraulic hand-pump (11), described hydraulic gage (13) is installed on the described hydraulic gage switching piece (12), the hydraulic pressure output pressure that is used for monitoring hydraulic hand-pump (11), described hydraulic hose is connected between described hydraulic gage switching piece (12) and the described adapter (15), described adapter (15) links to each other with Axial Loads unit screw thread, and is connected.
3. aircraft air cycle machine rotary components hydraulic axial load device according to claim 2, it is characterized in that: described hydraulic hose is coupling quick-release butt joint hydraulic hose (14), and described coupling quick-release butt joint hydraulic hose (14) refers to the flexible pipe that will be divided into two from described hydraulic gage switching piece (12) to the hydraulic hose the adapter (15) and transfer at separation use quick-release coupling.
4. aircraft air cycle machine rotary components hydraulic axial load device according to claim 2, it is characterized in that: described Axial Loads unit comprises public pull rod screw puller (21), last hydraulic pressure cover cap (22), following hydraulic pressure cover cap (23), endless screw unit (25) and helical gear drive sleeve unit (26), the two ends of described public pull bar (08) are and have externally threaded screw rod, the described hydraulic pressure cover cap (22) of going up is for covering the double-layered cylinder structure of shape, has integrated inner core (221), urceolus (222) and top cover (223), the middle has circular central through hole (224), described inner core (221) and urceolus (222) are connected to an integral body in the upper end by top cover (223), the length that the length that urceolus (222) extends is downwards extended downwards greater than inner core (221), has annular gap (225) between the internal face of the outside wall surface of inner core (221) and urceolus (222), inner core (221) has the inner chamber (226) that is connected with central through hole (224), the diameter of inner core (221) inner chamber is greater than the diameter of central through hole (224), described top cover (223) offers a tapered thread through hole (227) that parallels with central through hole (224) in the zone that is positioned between inner core (221) and the urceolus (222), the upper shed of this tapered thread through hole (227) is connected with described adapter (15), under shed is connected with described annular gap (225), described top cover (223) is gone up the also oblique inclined hole (228) that offers a circle, the inwall of this inclined hole (228) break-through inner core (221) is connected with the inner chamber (226) of inner core (221); Described hydraulic pressure cover cap (23) down has the columnar structured of inner chamber (231) for the centre, following hydraulic pressure cover cap (23) is inserted in the annular gap (225) of hydraulic pressure cover cap (22), the remaining space, annular gap (225), back, annular gap (225) that following hydraulic pressure cover cap (23) is inserted into hydraulic pressure cover cap (22) is, the seal cavity that forms between the following hydraulic pressure cover cap, hydraulic oil enters in the sealing space through tapered thread through hole (227), described hydraulic pressure cover cap (23) down offers seal groove at the position that is positioned at annular gap (225) scope, sealing ring (24) is installed in the seal groove, sealing in the realization between hydraulic pressure cover cap (22) and the following hydraulic pressure cover cap (23), the described inner chamber (231) of hydraulic pressure cover cap (23) down is connected with the inner chamber (226) of inner core (221), form a whole chamber, the described outer rim place, bottom of hydraulic pressure cover cap (23) down is provided with the otic placode of annular, offers a plurality of installing holes on the otic placode; Described public pull rod screw puller (21) is the rounding tapered structure, this public pull rod screw puller (21) is inserted in the central through hole (224) of hydraulic pressure cover cap (22), and the lower end extend in the described whole chamber, the bottom of public pull rod screw puller (21) offers the internal thread hole (211) that the screw rod with public pull bar (08) top is complementary, and is threaded with public pull bar (08) by this internal thread hole (211); Described helical gear drive sleeve unit (26) comprises annular helical gear (261) and the drive sleeve (262) of hollow, described helical gear (261) and drive sleeve (262) all are positioned at described whole chamber, and the lower end of the described public pull rod screw puller of ring set (21), wherein, described helical gear (261) horizontally set, described drive sleeve (262) is the vertical inverted cone-shaped structure that arranges, the V-type through hole is opened in the centre, the top of drive sleeve (262) has the ladder platform, described helical gear (261) be sleeved on this ladder platform and with ladder platform interference fit, the bottom of described drive sleeve (262) offers the positive inner hexagonal hole (263) that the locking nut (06) with public pull bar (08) the top suit of air cycle machine rotary components is complementary, and is sleeved on the locking nut (06) by this positive inner hexagonal hole (263); Described endless screw unit (25) comprises be connected all-in-one-piece swingle (252) and worm screw (253), swingle (252) be inserted in the inclined hole (228) of hydraulic pressure cover cap (22) after worm screw (253) is connected, wherein, worm screw (253) is positioned at inclined hole (228), be meshed with the helical gear (261) of helical gear drive sleeve unit (26), swingle (252) exposes to outside the inclined hole (228) of hydraulic pressure cover cap (22), and swingle (252) drives helical gear (261) by worm screw (253) and rotates in rotation process; Hydraulic oil enters the seal cavity pressurization that forms between the upper and lower hydraulic pressure cover cap through tapered thread through hole (227) under hydraulic action, the described hydraulic pressure cover cap (22) of going up moves up under hydraulic action, the public pull rod screw puller of pulling (21) moves up synchronously, thereby elongates public pull bar (08).
5. aircraft air cycle machine rotary components hydraulic axial load device according to claim 4, it is characterized in that: described hydraulic pressure cover cap (23) down respectively offers the seal groove of an annular on the outer surface that is positioned at annular gap (225) scope and internal face, described sealing ring (24) is two, and correspondence is installed in the seal groove.
6. aircraft air cycle machine rotary components hydraulic axial load device according to claim 4, it is characterized in that: the inner cylinder face of described helical gear (261) evenly offers four semicircle orifices, four semicircle orifice opposite position places of the external cylindrical surface of the ladder platform at described drive sleeve (262) top and helical gear (261) also offer four semicircle orifices, helical gear (261) is sleeved on behind the ladder platform of drive sleeve (262) equal with the top end face of drive sleeve (262) neat, and four semicircle orifices of helical gear (261) and four circular holes of the involutory formation of four semicircle orifices of drive sleeve (262), in each circular hole all split pin of plug-in mounting to reinforce.
7. aircraft air cycle machine rotary components hydraulic axial load device according to claim 4, it is characterized in that: described endless screw unit (25) also comprises urceolus (251), bearing (254) and bearing cushion block (255), bearing (254) and bearing cushion block (255) are sleeved on the swingle (252) with the series connection shape from left to right, worm screw (253) is sleeved on the right-hand member of swingle (252), and contact with bearing cushion block (255), urceolus (251) also is sleeved on the swingle (252), and be positioned at the periphery of bearing (254) and bearing cushion block (255), coat described bearing (254) and bearing cushion block (255), described swingle (252), worm screw (253) and urceolus (251) three's corresponding position all offers a pin-and-hole, after the opening pin passes the pin-and-hole of urceolus (251), be inserted into swingle (252), in the pin-and-hole of worm screw (253), worm screw (253) and swingle (252) are linked into an integrated entity, and described urceolus (251) is fastened in the inclined hole (228) of hydraulic pressure cover cap (22) by holding screw.
8. according to each described aircraft air cycle machine rotary components hydraulic axial load device of claim 1 to 7, it is characterized in that: described public pull bar elongation detecting unit comprises left vertical support bar (32), right vertical support piece (33), horizontal gird (34), open cylinders sleeve (35) and holding screw (36), described left vertical support bar (32) is the identical montant of structure with right vertical support bar (33), the upper end of left side vertical support bar (32) and right vertical support bar (33) all is connected with horizontal gird (34), the lower end of left side vertical support bar (32) and right vertical support bar (33) all is connected with the otic placode of following hydraulic pressure cover cap (23), the horizontal plane middle of described horizontal gird (34) has a cylindrical hole (341), the vertical plane middle of described horizontal gird (34) has a tapped through hole (342), described open cylinders sleeve (35) is installed in the described cylindrical hole (341), described dial gauge (31) is installed in the described open cylinders sleeve (35), and over against described public pull rod screw puller (21), the indicator of described dial gauge (31) contacts with the positive center, top of public pull rod screw puller (21), described holding screw (36) passes tapped through hole (342) and is pressed on above the described open cylinders sleeve (35), described dial gauge (31) is fixed on the horizontal gird 34, and the amount of movement of public pull rod screw puller (21) is read by dial gauge (31).
9. aircraft air cycle machine rotary components hydraulic axial load device according to claim 8, it is characterized in that: the upper end of described left vertical support bar (32) and right vertical support bar (33) all is connected by screw with horizontal gird (34), and the lower end of left vertical support bar (32) and right vertical support bar (33) all is connected by screw with the otic placode of following hydraulic pressure cover cap (23).
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| CN111174964A (en) * | 2020-01-20 | 2020-05-19 | 青海大学 | Bolt force measurement experimental device, torsion and tension calibration system and actual measurement installation jig |
| CN111400831A (en) * | 2020-03-06 | 2020-07-10 | 中国北方车辆研究所 | Method and device for connecting three-dimensional woven carbon fiber composite gear with metal shaft |
| CN111911456A (en) * | 2020-08-19 | 2020-11-10 | 杭州汽轮动力集团有限公司 | Multistage axial compressor welding rotor |
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