CN105522537B - Nut placing and tightening device, method and system - Google Patents
Nut placing and tightening device, method and system Download PDFInfo
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- CN105522537B CN105522537B CN201410512757.9A CN201410512757A CN105522537B CN 105522537 B CN105522537 B CN 105522537B CN 201410512757 A CN201410512757 A CN 201410512757A CN 105522537 B CN105522537 B CN 105522537B
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Abstract
The invention relates to a nut placing and tightening device, method and system. The nut placing and tightening device comprises a connecting rod mechanism for transferring torque, a stretching mechanism and a gear mechanism for clamping a nut. The gear mechanism is hinged to one end of the connecting rod mechanism, the stretching mechanism is connected with the connecting rod mechanism and the gear mechanism, and the gear mechanism can be unfolded or folded relative to the connecting rod mechanism through the stretching mechanism. The connecting rod mechanism comprises a connecting rod which can be rigidly connected with or disconnected from the gear mechanism. In the state that the connecting rod is disconnected from the gear mechanism, the gear mechanism can be unfolded or folded relative to the connecting rod mechanism through the stretching mechanism. In the state that the gear mechanism is folded in place relative to the connecting rod mechanism, the connecting rod can be rigidly connected with the gear mechanism. Through the nut placing and tightening device, method and system, the nut can be tightened and dismounted in a narrow and long cavity in a steering mode; besides, length adjustment can be conducted according to needs, and thus the effective operation distance is extended.
Description
Technical field
The present invention relates to aero-engine field, more particularly to one kind can be combined suitable for large aerospace engine high pressure
The nut of rotor connection lays device for screwing up, method and system.
Background technology
The core engine of turbofan aero-engine is by high-pressure compressor part, combustion chamber componentses and high-pressure turbine parts group
Into.Wherein, high-pressure compressor rotor (HPCR, High pressure compressor rotor) and High Pressure Turbine Rotor
(HPTR, High pressure turbine rotor) constitutes high pressure combined rotor, and both are bolt connection.Core engine is assembled
Quality is largely determined by two high pressure rotor quality of connection.According to conventional Air Fitter process：It is first
First HPTR is lifted to vertically fixed HPCR tops using special hanger and crane, complete vertical butt joint.Then in height
Under the plumbness of pressure combined rotor, arm stretches into the rear shaft neck of High Pressure Turbine Rotor, manually installed attaching nut；Reuse specially
Stretched into by HPTR rear shaft necks with instrument, all nuts tightened according to certain order and limiter so as to reach torque requirement,
It is finally completed the assembling of high pressure combined rotor.Due to Core Feature effect of the high pressure combined rotor in aero-engine, HPCR
Assembling quality and HPTR between not only determines the form and position tolerance and dynamic equilibrium state of high pressure combined rotor itself, even more directly
It is related to the indicators of overall performance and complete machine oscillation level of aero-engine.So, above-mentioned assembly work is put into aeroplane engine
The critical process of machine core engine assembling.
Because the attaching nut of high pressure combined rotor is located at the front installation side of HPTR, arm stretches into distance and is larger than HPTR
Length is just capable of achieving the installation of the nut, therefore, the accessibility of installation operation is extremely important.After nut installation, use
" C " the shape special spanner of distance slightly larger than HPTR length is stretched into, tightening and limiter for nut is completed.The knot of " C " shape special spanner
Configuration formula, method of operating comparative maturity, design focal point is to ensure enough overall stiffness.
For large aerospace engine, generally two-stage high-pressure turbine, HPTR is relatively large sized.High pressure combined rotor connects
Tighten and the limiter of connected nut can be continuing with " C " shape special spanner.But the craft of the nut is installed extremely difficult --- it is big
The HPTR length of type aero-engine reaches more than 650mm, and the HPTR length of traditional Small Aeroengine is less than
500mm.Adult human arm overall length (oxter is to finger tip ultimate range) is general in 650mm or so, and effective operating distance is 550mm
Left and right.Thus, for the installation operation of large aerospace engine mesohigh combined rotor attaching nut, accessibility can not meet.
Large scale GE90 Engine Series with twin-stage high-pressure turbine, employ the special tooling system of complexity, coordinate
Industrial endoscope, realizes the installation of nut, tightens and three functions of limiter.Before the fixture system mainly includes outside HPTR
End operating mechanism, the multi-jointed gear unit inside HPTR, and the folding end effector inside HPTR.Terminal is performed
Device realizes the clamping and rotation of nut, and front end operating mechanism mainly includes the devices such as control crank, knob, there is provided hand control and
The hardware interface of torque spanner, the whole geometry adjustment structures control in fixture system is completed by multi-jointed gear unit, such as
The opening of end effector, axial and circumferential positioning.
Due to the fixture system mechanism it is extremely complex, containing a considerable amount of gears and connecting rod, so physical dimension is larger,
Overall stiffness is relatively low, and the lever amplification effect that cantilevered overall configuration is produced makes terminal positioning low precision.Fill because front end manipulates
Put and there is multistage transmission mechanism between end effector, fixture system cannot realize that effective various dimensions power sensing and power are anti-
Feedback, to it is slight collide with, clamping stagnation it is insensitive, nut can be caused crooked, locked or released when installing.Thus, operating efficiency compares
Lowly；In addition, high cost, stability is poor.In view of the high rotary speed working trend of High Performance Aeroengine, high pressure combined rotor
Internal diameter need gradually reduce, typically between 150mm~200mm, alternate-engine can lower present engine HPTR internal diameter
To below 130mm.Therefore, above-mentioned complex tool equipment system is on the basis of operation accessibility is met, in addition it is also necessary to further improve knot
Structure, reduces contour dimension, and then meets the aero-engine assembling needs of following high rotating speed, little internal diameter rotor.
The content of the invention
The purpose of the present invention is to propose to a kind of nut lays device for screwing up, method and system, simple structure can extend behaviour
Make distance, realize being turned in elongated cavity body and tighten or decompose nut.
For achieving the above object, the invention provides a kind of nut lays device for screwing up, it is included for transmitting torque
Linkage, drawing mechanism and the gear mechanism for binding nut, the gear mechanism is hinged on the one of the linkage
End, the drawing mechanism is connected with the linkage and the gear mechanism, and by the drawing mechanism tooth can be made
Wheel mechanism launches relative to the linkage or folds；The linkage includes connecting rod, the connecting rod and the gear mechanism
Structure can be realized being rigidly connected and disengaging, in the state of the connecting rod with gear mechanism disengagement, by the stretching-machine
Structure makes the gear mechanism launch relative to the linkage or fold, in the gear mechanism relative to the linkage
In the state of folding in place, the connecting rod can be realized being rigidly connected with the gear mechanism.
One preferably or in alternative embodiment, the linkage also includes the first sleeve and second sleeve, the connecting rod
It is arranged in first sleeve, first sleeve is arranged in the second sleeve, the gear mechanism and described second
Sleeve is hinged, the drawing mechanism and first sleeve connection, and first sleeve moves up and down, can be by the stretching
Mechanism drives the gear mechanism to launch relative to the linkage or fold.
One preferably or in alternative embodiment, the second sleeve is fixedly installed away from one end of the gear mechanism and props up
Support plate, first sleeve passes and revolving part has been threaded connection on the end of the second sleeve, and the revolving part passes through
The support plate is positioned, and can be rotated relative to the support plate, rotates the revolving part, is threaded connection, energy
First sleeve is enough driven to move up and down.
One preferably or in alternative embodiment, the nut lays device for screwing up also includes indexing mechanism, the connecting rod machine
Structure passes through the indexing mechanism, the indexing mechanism to include rotation dish and index dial, and the index dial is used to be fixed on narrow
On the parts of long cavity, several location holes are provided with the index dial, need to twist in the location hole and the parts
The hole position of tight nut is corresponded；The rotation dish is fixedly connected by column with the support plate, is arranged in the rotation dish
There is pin hole, the turn disc can make the pin hole overlap with the arbitrary described location hole on the index dial, and
In the state of the pin hole overlaps with the location hole, bearing pin, location nut riding position are plugged.
One preferably or in alternative embodiment, the gear mechanism includes gear carrier, is provided with the gear carrier
Trench structure, the end of the connecting rod is provided with the plug construction being engaged with the trench structure, by the trench structure
With the cooperation of the plug construction, being rigidly connected for the connecting rod and the gear mechanism can be realized, and the connecting rod can
The trench structure is driven to rotate.
Preferably or in alternative embodiment, driving gear, travelling gear and plum blossom are additionally provided with the gear carrier one
Gear, the driving gear is arranged on the periphery of the trench structure, and the driving gear can be by passing described at least one
The transmission of moving gear, drives the plum blossom pinion rotation, the plum blossom gear to be used for binding nut.
Preferably or in alternative embodiment, the groove for placing nut is provided with the plum blossom gear one, it is described recessed
Groove is circumferentially provided with least one spring cavity, and spring is provided with the spring cavity, and the inner of the spring cavity is provided with steel ball,
The outer end of the spring cavity is provided with plug screw.
One preferably or in alternative embodiment, the drawing mechanism includes stretch rod, one end of the stretch rod with it is described
First sleeve is hinged, and the other end of the stretch rod is hinged with the gear mechanism.
One preferably or in alternative embodiment, the connecting rod is fixedly installed first-hand away from one end of the gear mechanism
Handle, can drive the link rotatable, to the gear mechanism transmitting torque by rotating the first handle；And by described
The connecting rod can upwards be extracted or advanced downwardly by first handle, realized the disengagement with the gear mechanism or be rigidly connected.
Preferably or in alternative embodiment, second handle is provided with the revolving part, by the second handle energy one
The revolving part is enough driven to rotate.
One preferably or in alternative embodiment, the nut lays device for screwing up also includes cylinder, and the cylinder is located at
Outside the linkage, drawing mechanism, the inwall for parts of the protection with long and narrow cavity is not scratched.
For achieving the above object, present invention also offers a kind of nut for laying device for screwing up based on above-mentioned nut is laid and twisted
Clamping method, it is comprised the following steps：
S1) connecting rod and gear mechanism are disengaged, gear mechanism is launched relative to linkage by drawing mechanism, and it is logical
Cross gear mechanism binding nut；
S2) linkage, gear mechanism and drawing mechanism are stretched in the parts with long and narrow cavity；
S3) gear mechanism is made to fold in place, then by connecting rod and gear mechanism relative to linkage by drawing mechanism
It is rigidly connected；
S4) nut is placed in parts by gear mechanism needs the position for tightening nut, pivot link, sliding tooth
Nut is tightened by wheel mechanism.
One preferably or in alternative embodiment, in step S1) before, also determine first nut at zero by indexing mechanism
Riding position in part.
One preferably or in alternative embodiment, in step S4) after, connecting rod is disengaged with gear mechanism, in gear mechanism phase
In the state of linkage is launched, it is lifted up nut and lays device for screwing up, a nut is filled again, turning in indexing mechanism
Moving plate goes to next hole position and locks, and repeats nut and lays, tightens action.
For achieving the above object, present invention also offers a kind of nut lay tightening system, it include industrial endoscope and
Nut in any of the above-described embodiment lays device for screwing up.
Based on above-mentioned technical proposal, the present invention at least has the advantages that：
The present invention can make gear mechanism launch relative to linkage or fold by drawing mechanism, under deployed condition,
Linkage, drawing mechanism and gear mechanism are put in the parts with long and narrow cavity under being easy to, and under folded state, are easy to peace
Put, tighten nut, the length of linkage can be adjusted as needed, extend effective operating distance, realize narrow
Long cavity turns to the purpose for tightening, decomposing nut.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 lays the structural representation of device for screwing up for the nut that the present invention is provided；
Fig. 2 lays the cross-sectional schematic of device for screwing up for the nut that the present invention is provided；
Fig. 3 lays the schematic diagram of device for screwing up middle gear mechanism for the nut that the present invention is provided；
Fig. 4 lays the plum blossom gear cross-sectional schematic in device for screwing up for the nut that the present invention is provided.
In accompanying drawing：
1- linkages；11- connecting rods；The sleeves of 12- first；13- second sleeves；14- first handles；15- second handles；
16- revolving parts；
2- indexing mechanisms；21- index dials；22- rotation dish；
3- drawing mechanisms；31- stretch rods；
4- gear mechanisms；41- driving gears；42- travelling gears；43- plum blossom gears；44- grooves；45- springs；46- steel
Pearl；47- plug screws；The square grooves of 48- six；
5- support plates；6- columns；7- cylinders.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely retouched
State.Obviously, described embodiment a part of embodiment only of the invention, rather than the embodiment of whole.Based on this
Bright embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is based on accompanying drawing institute
The orientation for showing or position relationship, are for only for ease of the description present invention and simplify description, rather than indicate or imply the dress of indication
Put or element with specific orientation, with specific azimuth configuration and operation, therefore it is not intended that must be protected to the present invention
The restriction of scope.
As shown in Figure 1 and Figure 2, the illustrative examples of device for screwing up are laid for the nut that the present invention is provided, it is schematic at this
In embodiment, nut lays device for screwing up to be included for transmitting the linkage 1 of torque, drawing mechanism 3 and for binding nut
Gear mechanism 4, gear mechanism 4 is hinged on one end of linkage 1, and drawing mechanism 3 connects with linkage 1 and gear mechanism 4
Connect, by drawing mechanism 3 gear mechanism 4 can be made to launch or fold relative to linkage 1；Linkage 1 includes connecting rod 11,
Connecting rod 11 can be realized being rigidly connected and disengaging with gear mechanism 4, in the state of connecting rod 11 and the disengagement of gear mechanism 4, pass through
Drawing mechanism 3 makes gear mechanism 4 launch or fold relative to linkage 1, folds relative to linkage 1 in gear mechanism 4
In the state of in place, connecting rod 11 can be realized being rigidly connected with gear mechanism 4.
Linkage 1 and gear mechanism 4 are set to folding structure by the present invention, in gear mechanism 4 relative to connecting rod
Under the deployed condition of mechanism 1 (close 180 °), linkage 1, gear mechanism 4 and drawing mechanism 3 are put in long narrow lumens
In parts, high pressure rotor junction is reached, gear mechanism 4 is folded under retracted state (close 90 °) relative to linkage 1,
Nut is laid by gear mechanism 4, nut is tightened to torque is required, realizes that large aerospace engine mesohigh combined rotor connects
Operation is tightened in the installation of nut, and the length of linkage 1 can be adjusted as needed, extend effective operating distance,
Realize and the purpose for tightening nut is turned in elongated cavity body.
As shown in Fig. 2 in the illustrative examples that the nut that the present invention is provided lays device for screwing up, linkage 1 is also
The first sleeve 12 and second sleeve 13 can be included, connecting rod 11 is arranged in the first sleeve 12, and the sleeve 12 of connecting rod 11 and first sets
Put in second sleeve 13, gear mechanism 4 is hinged with second sleeve 13, drawing mechanism 3 is connected with the first sleeve 12, the first sleeve
12 move up and down, and by drawing mechanism 3 gear mechanism 4 can be driven to launch or fold relative to linkage 1.
As shown in figure 1, in the illustrative examples that the nut that the present invention is provided lays device for screwing up, second sleeve 13 is remote
Support plate 5 can be fixedly installed from one end of gear mechanism 4, the first sleeve 12 is passed on the end of second sleeve 13 by spiral shell
Line is connected with revolving part 16, and revolving part 16 is positioned by support plate 5, limits the axially-movable of revolving part 16, revolving part 16
Can rotate relative to support plate 5, rotate revolving part 16, be threaded connection, the first sleeve 12 can be driven to move up and down.
In above-mentioned illustrative examples, connecting rod 11 can be fixedly installed first handle 14 away from one end of gear mechanism 4,
First handle 14 can be connected with torque spanner, by turn first handle 14 can drivening rod 11 rotate, to gear mechanism 4
Transmitting torque；By first handle 14 connecting rod 11 can also upwards be extracted or advanced downwardly, realize the disengagement with gear mechanism 4
Or be rigidly connected.
In above-mentioned illustrative examples, can coordinate for gap between the first sleeve 12 and connecting rod 11.
In above-mentioned illustrative examples, the kidney slot moved up and down for drawing mechanism 3 can be provided with second sleeve 13.
In above-mentioned illustrative examples, second handle 15 can be provided with revolving part 16, can by second handle 15
Part 16 is rotated to rotate, revolving part 16 is rotated, due to the position-limiting action of support plate 5, the non-displacement in the axial direction of revolving part 16, because
This, by screw-driven, the first sleeve 12 moves up and down.
In above-mentioned illustrative examples, drawing mechanism 3 can adopt stretch rod 31, one end of stretch rod 31 and the first sleeve
12 are hinged, and the other end and the gear mechanism 4 of stretch rod 31 are hinged.
As shown in Figure 1 and Figure 2, in the illustrative examples that the nut that the present invention is provided lays device for screwing up, nut is laid
Device for screwing up can also include the indexing mechanism 2 with indexing function, and linkage 1 passes through indexing mechanism 2, indexing mechanism 2 to wrap
Rotation dish 22 and index dial 21 are included, index dial 21 is used to be fixed on the parts with long and narrow cavity, arranges on index dial 21
There are several location holes, need the hole position for tightening nut to correspond in location hole and parts；Rotation dish 22 is by column 6 and props up
Support plate 5 is fixedly connected, and pin hole is provided with rotation dish 22, and rotation dish 22 is rotated, and can make on pin hole and index dial 21
Arbitrary location hole overlaps, and in the state of pin hole overlaps with location hole, plugs bearing pin, location nut riding position.
The indexing mechanism 2 that the present invention is provided is made up of the rotation dish 22 of top and the index dial 21 of lower section, rotation above
One pin hole can be only set, and with latch, latch fixes state use on disk 22.Can set on following index dial 21
The location hole of a circle is equipped with, the position of location hole is consistent with the following hole site to be tightened (pitch circle), one-to-one relationship.Tighten
After what a nut, latch is extracted, rotate rotation dish 22 above, now, linkage 1, gear mechanism 4 and drawing mechanism 3
As an entirety, while turning to next hole position, latch is plugged, nut action is tightened in repetition.
In the illustrative examples that the nut that the present invention is provided lays device for screwing up, gear mechanism 4 includes gear carrier,
Trench structure is provided with gear carrier, the end of connecting rod 11 is provided with the plug construction being engaged with trench structure, by groove
The cooperation of type structure and plug construction, can realize being rigidly connected for connecting rod 11 and gear mechanism 4, and connecting rod 11 can drive groove
Type structure is rotated.
Further, the plug construction for arranging on connecting rod 11 can be six square toes, the trench structure arranged on gear mechanism 4
Can be six square grooves 48 (as shown in Figure 3), six square toes can be inserted in interior six square groove of gear mechanism 4, realize both rigidity
Connection.First handle 14 is pushed down on, connecting rod 11 is moved downward, make six square toes reach the position of six square groove 48, turn first handle
14, six square toes of regulation are corresponding with the position of six square grooves 48, push down on first handle 14, make six square toes insert six square grooves 48
It is interior, realize being rigidly connected for connecting rod 11 and gear mechanism 4.First handle 14 is lifted up, connecting rod 11 is up walked, six square toes and tooth
Six square grooves 48 in wheel mechanism 4 are disengaged, and gear mechanism 4 just can be opened in the presence of drawing mechanism 3 or folded and withdraw.
As shown in figure 3, in above-mentioned illustrative examples, driving gear 41, driving cog is also provided with gear carrier
Wheel 42 and plum blossom gear 43, driving gear 41 is arranged on the periphery of trench structure, and driving gear 41 can be passed by least one
The transmission of moving gear 42 (such as two travelling gears 42 shown in figure), drives plum blossom gear 43 to rotate, and plum blossom gear 43 is
Last in gear mechanism 4, acts directly on nut, with the function of clamping placement nut and transmission torque.
As shown in figure 4, in above-mentioned illustrative examples, the groove 44 for placing nut is provided with plum blossom gear 43,
Groove 44 is circumferentially provided with least one spring cavity, and spring 45 is provided with spring cavity, and the inner of spring cavity is provided with steel ball 46,
The outer end of spring cavity is provided with plug screw 47.Nut is positioned in groove 44, by the compression spring 45 of steel ball 46, binding nut, shape
State reliability, ensure that before action is tightened, nut does not fall off.
In the above-described embodiments, nut lay device for screwing up can also include cylinder 7, cylinder 7 be located at linkage 1,
Outside drawing mechanism 3, when nut placement device for screwing up is transferred toward in the parts with long and narrow cavity, first cylinder 7 is put into into zero
In part, the cavity inner wall of parts is protected not to be scratched by cylinder 7.
The nut that the present invention is provided is laid a specific embodiment of device for screwing up and is combined used in large aerospace engine high pressure
Tightening method in rotor connection, comprises the following steps：
Nut prepares before installing：Using crane and suspender by HPTR arranged orthogonals in HPCR, and it is solid to complete the radial direction of HPTR
Fixed and rotation stop, prevents it from toppling over and rotating.
A) first by the index dial 21 below in indexing mechanism 2, (index dial 21 is for being fixed on determining on parts
Position part) it is connected with HPTR rear shaft necks, realize that apparatus main body is tentatively connected with engine component.
B) cylinder 7 is put in the cavity of parts (High Pressure Turbine Rotor) through indexing mechanism 2, protects the interior of parts
Wall is not scratched.
C) first handle 14 is lifted up, drivening rod 11 is moved upwards, gear mechanism 4 and connecting rod 11 is disengaged, turned
Second handle 15, the first sleeve 12 is moved downward, and drives stretch rod 31 to move downward, and drive gear mechanism 4 opens (be close to downwards
180 °), in the on-state, linkage 1, gear mechanism 4 and drawing mechanism 3 are stretched into and be put in the cavity of parts.
D) gear mechanism 4 is reached behind operating position, reversely turns second handle 15, and the lifting upwards of gear mechanism 4 reaches
When 90 °, first handle 14 is pushed down on, drivening rod 11 moves downward reeve gear mechanism 4, realizes gear mechanism 4 and connecting rod
11 are rigidly connected.
E) indexing mechanism 2 is utilized, determines first nut location, and lock index dial 21.
F) first handle 14 is lifted up, drivening rod 11 is moved upwards, and connecting rod 11 is disengaged with gear mechanism 4, is taken out
Main element (including connecting rod 11, the rotation dish 22 on stretch rod 31, gear mechanism 4 and indexing mechanism 2), in gear mechanism 4
Nut is loaded onto on plum blossom gear 43, reliable grip nut is checked whether.
G) in the state of gear mechanism 4 opens downwards (close 180 °), by linkage 1, gear mechanism 4 and stretching-machine
Structure 3 is stretched in the cavity of parts, i.e., the plum blossom gear 43 with nut is also placed in the cavity of parts.
H) gear mechanism 4 is reached behind operating position, reversely turns second handle 15, and the lifting upwards of gear mechanism 4 reaches
When 90 °, first handle 14 is pushed down on, drivening rod 11 injects gear mechanism 4, realizes the rigidity of gear mechanism 4 and connecting rod 11
Connection, nut and threaded bolt contacts, turn first handle 14, realize laying nut and pre-screwing；And on request torque is finally tightened
Nut.
I) after tightening first nut, first handle 14 is lifted up, connecting rod 11 is disengaged with gear mechanism 4.Turn
Two handles 15, gear mechanism 4 is opened downwards, is lifted up taking out the main bodys such as sleeve in the state of gear mechanism 4 is opened downwards,
Again a nut is filled, index dial 21 goes to next hole position and locks, repeats the placement of nut, tightens action.
It is the above-mentioned inverse process for tightening action that the nut that the present invention is provided lays the course of action of device for screwing up decomposition nut.
Present invention also offers a kind of nut lays tightening system, it is included in industrial endoscope and any of the above-described embodiment
Nut lay device for screwing up.
The nut that the present invention is provided lays device for screwing up and can solve the problems, such as to operate accessibility, because of HPTR rear shaft neck internal diameters
Little, operator's observation is difficult, must use cooperatively with endoscope, whole operation process Endoscope-assisted observation nut hole position, nut
Lay tight condition.
The nut that the present invention is provided to be laid and be provided with through hole on device for screwing up, and industrial endoscope can visit band by through hole
The survey line of head is transmitted toward nut placing position, and two operators are needed during operation, is responsible for seeing in industrial endoscope display for one and is drawn
Assigning instruction, another name is operated according to instruction in face.
According to the various embodiments described above, can derive that the present invention at least has advantages below：
1) attaching nut's exact placement：The installation operation of large aerospace engine mesohigh combined rotor attaching nut is real
The existing important prerequisite that it is tightened.The placement operation of nut includes：First with mechanism in device by nut clamping, state can
Lean on, do not fell off before action is tightened, can exact placement on bolt；Then force transmission mechanism on device is turned, on request
Torque tightens nut, and final guarantee nut is firm to be tightened on bolt.Under normal circumstances, artificial operation has force feedback and vision
Positioning function, can be according to nut and the screw-in position of threaded bolt contacts situation adjusting nut, it is ensured that nut is screwed in smoothly, not askew
Tiltedly.The present invention is calculated by accurate dimension chain between structure and ensured when gear mechanism 4 is retracted to 90 °, just nut and bolt
On same pitch circle, it is ensured that nut and the concentricity of bolt, screw buckle is smoothly screwed in.
2) because HPTR rear shaft necks internal diameter is less than 120mm, internal diameter very little, the present invention passes through linkage 1, gear mechanism 4
With drawing mechanism 3 etc., folding and expanding function is realized, inner chamber is put in the state of outline is little, beat again after reaching at assembling
Open, it is adaptable to the little long and narrow space of internal diameter.
3) close to combustion chamber, work under bad environment, temperature is up to 600 DEG C of left sides to large aerospace engine mesohigh combined rotor
The right side, the easy bonding of part, is not easily decomposed after engine test, torque ratio big many when assembling, and estimates to decompose torque to tighten
2 times of torque, several cylinders that the present invention passes through intussusception both increased intensity, rigidity, and can meet decomposition matching requirements, real
Several functions are showed.
4) attaching nut, a diameter of M10~M14 uniform along a week that be usually 30~40 nuts, it is many that step is tightened in placement,
Operator cannot see the nut and working state of device at assembling, and the indexing mechanism 2 that the present invention is provided can be indexed accurately, its
With with the one-to-one index dial 21 of attaching nut, the location hole bit distribution on index dial 21 and following nut bore bit distribution
Unanimously, efficiency of assembling is improve, enhances operability.
In sum, the present invention can replace staff exact placement nut, reliably tighten in elongated cavity body, decompose spiral shell
Mother, meets the placement demand of nut, and can adjustment length (such as 200mm or so) as needed, realize operation reachable
Property, also improve the installation effectiveness and precision of large aerospace engine mesohigh combined rotor attaching nut；In addition the present invention is carried
For nut lay device for screwing up manufacture and maintenance cost it is low.
The nut that the present invention is provided lays device for screwing up and is applicable not only to the connection of large aerospace engine high pressure combined rotor
On, can also be applied at the assembling that other nuts are laid, accessibility is poor.
In describing the invention, it is to be understood that limit parts using the word such as " first ", " second ", only
It is for only for ease of and above-mentioned parts is distinguished, such as without Stated otherwise, above-mentioned word does not have a particular meaning, therefore not
It is understood that as limiting the scope of the invention.
Finally it should be noted that:Above example is only to illustrate technical scheme rather than a limitation；To the greatest extent
Pipe has been described in detail with reference to preferred embodiment to the present invention, and those of ordinary skill in the art should be understood：Still
The specific embodiment of the present invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this
The spirit of bright technical scheme, it all should cover in the middle of the technical scheme scope being claimed in the present invention.
Claims (15)
1. a kind of nut lays device for screwing up, including for transmitting the linkage and the gear mechanism for binding nut of torque
Structure, it is characterised in that：Also include drawing mechanism, the gear mechanism is hinged on one end of the linkage, the stretching-machine
Structure is connected with the linkage and the gear mechanism, and the gear mechanism can be made relative to institute by the drawing mechanism
State linkage to launch or fold；The linkage includes connecting rod, and the connecting rod can realize rigidity with the gear mechanism
Connection and disengagement, in the state of the connecting rod with gear mechanism disengagement, by the drawing mechanism gear mechanism are made
Structure launches relative to the linkage or folds, and state in place is folded relative to the linkage in the gear mechanism
Under, the connecting rod can be realized being rigidly connected with the gear mechanism.
2. nut as claimed in claim 1 lays device for screwing up, it is characterised in that：The linkage also includes the first sleeve
And second sleeve, the connecting rod is arranged in first sleeve, and first sleeve is arranged in the second sleeve, described
Gear mechanism is hinged with the second sleeve, the drawing mechanism and first sleeve connection, and first sleeve is transported up and down
It is dynamic, by the drawing mechanism gear mechanism can be driven to launch relative to the linkage or fold.
3. nut as claimed in claim 2 lays device for screwing up, it is characterised in that：The second sleeve is away from the gear mechanism
One end of structure is fixedly installed support plate, and first sleeve to be passed and be threaded connection rotation on the end of the second sleeve
Turn part, the revolving part is positioned by the support plate, and can rotate relative to the support plate, rotate the rotation
Part, is threaded connection, and first sleeve can be driven to move up and down.
4. nut as claimed in claim 3 lays device for screwing up, it is characterised in that：The nut lays device for screwing up also to be included
Indexing mechanism, the linkage passes through the indexing mechanism, the indexing mechanism to include rotation dish and index dial, the indexing
Disk is used to be fixed on the parts with long and narrow cavity, is provided with several location holes on the index dial, the location hole with
The hole position for tightening nut is needed to correspond in the parts；The rotation dish is fixed with the support plate by column and connected
Connect, be provided with pin hole in the rotation dish, the turn disc can make appointing on the pin hole and the index dial
Location hole described in one overlaps, and in the state of the pin hole overlaps with the location hole, plugs bearing pin, and location nut is laid
Position.
5. nut as claimed in claim 1 lays device for screwing up, it is characterised in that：The gear mechanism includes gear carrier,
Trench structure is provided with the gear carrier, the end of the connecting rod is provided with the plug being engaged with the trench structure
Structure, by the cooperation of the trench structure and the plug construction, can realize the rigidity of the connecting rod and the gear mechanism
Connection, and the connecting rod can drive the trench structure to rotate.
6. nut as claimed in claim 5 lays device for screwing up, it is characterised in that：It is additionally provided with the gear carrier actively
Gear, travelling gear and plum blossom gear, the driving gear is arranged on the periphery of the trench structure, and the driving gear can
By the transmission of travelling gear described at least one, the plum blossom pinion rotation, the plum blossom gear is driven to be used for binding nut.
7. nut as claimed in claim 6 lays device for screwing up, it is characterised in that：It is provided with for putting on the plum blossom gear
The groove of nut is put, the groove is circumferentially provided with least one spring cavity, and spring, the spring are provided with the spring cavity
The inner in chamber is provided with steel ball, and the outer end of the spring cavity is provided with plug screw.
8. nut as claimed in claim 2 lays device for screwing up, it is characterised in that：The drawing mechanism includes stretch rod, institute
The one end and first sleeve for stating stretch rod is hinged, and the other end of the stretch rod is hinged with the gear mechanism.
9. nut as claimed in claim 1 lays device for screwing up, it is characterised in that：The connecting rod is away from the gear mechanism
One end is fixedly installed first handle, the link rotatable can be driven by rotating the first handle, to the gear mechanism
Structure transmitting torque；And the connecting rod can upwards be extracted or advanced downwardly by the first handle, realize and the gear
The disengagement of mechanism is rigidly connected.
10. nut as claimed in claim 3 lays device for screwing up, it is characterised in that：Second-hand is provided with the revolving part
Handle, can drive the revolving part to rotate by the second handle.
11. nuts as claimed in claim 1 lay device for screwing up, it is characterised in that：The nut is laid device for screwing up and is also wrapped
Cylinder is included, the cylinder is located at outside the linkage, drawing mechanism, in parts of the protection with long and narrow cavity
Wall is not scratched.
A kind of 12. nuts based on described in claim 1 lay the nut of device for screwing up and lay tightening method, it is characterised in that
Comprise the following steps：
S1) connecting rod and gear mechanism are disengaged, gear mechanism is launched relative to linkage by drawing mechanism, and by tooth
Wheel mechanism binding nut；
S2) linkage, gear mechanism and drawing mechanism are stretched in the parts with long and narrow cavity；
S3) gear mechanism is made to fold in place relative to linkage by drawing mechanism, then by connecting rod and gear mechanism rigidity
Connection；
S4) nut is placed in parts by gear mechanism needs the position for tightening nut, pivot link, sliding tooth turbine
Structure tightens nut.
13. nuts as claimed in claim 12 lay tightening method, it is characterised in that：In step S1) before, also by dividing engine
Structure determines riding position of first nut in parts.
14. nuts as claimed in claim 13 lay tightening method, it is characterised in that：In step S4) after, make connecting rod and gear
Mechanism disengages, and in the state of gear mechanism is relative to linkage expansion, is lifted up nut and lays device for screwing up, fills again
One nut, the rotation dish in indexing mechanism goes to next hole position and locks, and repeats nut and lays, tightens action.
A kind of 15. nuts lay tightening system, it is characterised in that：Including industrial endoscope and such as any one of claim 1-11 institute
The nut stated lays device for screwing up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512757.9A CN105522537B (en) | 2014-09-29 | 2014-09-29 | Nut placing and tightening device, method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512757.9A CN105522537B (en) | 2014-09-29 | 2014-09-29 | Nut placing and tightening device, method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105522537A CN105522537A (en) | 2016-04-27 |
| CN105522537B true CN105522537B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410512757.9A Active CN105522537B (en) | 2014-09-29 | 2014-09-29 | Nut placing and tightening device, method and system |
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| Country | Link |
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| CN (1) | CN105522537B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237393B (en) * | 2016-12-27 | 2019-08-27 | 中国航发商用航空发动机有限责任公司 | Nut tightening device |
| CN107225393B (en) * | 2017-06-02 | 2019-07-26 | 中国航发南方工业有限公司 | Compressor auxiliary installation device |
| CN108080939B (en) * | 2017-12-12 | 2019-10-29 | 大连理工大学 | A kind of preposition nut tightening device of aircraft engine high pressure rotor seal pan and method |
| CN108000127B (en) * | 2017-12-12 | 2019-05-17 | 大连理工大学 | A kind of aircraft engine high pressure rotor seal pan postposition nut tightening device and method |
| CN108188965A (en) * | 2017-12-26 | 2018-06-22 | 中国航发四川燃气涡轮研究院 | Nut spanner between a kind of axial-flow compressor rotor disk |
| CN110219467A (en) * | 2018-03-01 | 2019-09-10 | 云南中乾集成房屋有限公司 | A kind of method of not damaged installation high-strength bolt in small bore rectangle steel tubing string |
| CN111716089B (en) * | 2019-03-19 | 2021-07-30 | 中国航发上海商用航空发动机制造有限责任公司 | Pressing device, rotor inner cavity interference spigot pressing device and assembling method |
| CN111716279B (en) * | 2019-03-19 | 2022-02-18 | 中国航发上海商用航空发动机制造有限责任公司 | Tool and force limiting device for rotor inner cavity of rotary turbo machine |
| CN111993344A (en) * | 2019-05-27 | 2020-11-27 | 中国航发商用航空发动机有限责任公司 | Nut conveying device and nut mounting system |
| DE102019132106B4 (en) * | 2019-11-27 | 2021-07-08 | Rolls-Royce Deutschland Ltd & Co Kg | Screw connection device for the mechanical connection of a front drum and a rear drum of a compressor of a gas turbine engine |
| CN113547319B (en) * | 2020-04-26 | 2022-05-31 | 中国航发商用航空发动机有限责任公司 | Tightening device |
| CN111660085B (en) * | 2020-06-16 | 2021-11-05 | 中国航发航空科技股份有限公司 | Assembling device for connecting nut in narrow space of high-pressure rotor of engine and operation method |
| CN112589408B (en) * | 2020-12-11 | 2022-05-13 | 北京航空航天大学 | Automatic tightening device and method for blind cavity nut of aero-engine compressor rotor |
| CN114850845A (en) * | 2021-02-03 | 2022-08-05 | 中国科学院沈阳自动化研究所 | Automatic tightening mechanism suitable for narrow space |
| CN115229479B (en) * | 2021-04-23 | 2023-11-03 | 中国航发商用航空发动机有限责任公司 | Rotor connecting nut tightening device and tightening method |
| CN113927285B (en) * | 2021-11-15 | 2023-04-04 | 中国航发南方工业有限公司 | Large-diameter rotor inner cavity fastener assembling equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8209830B1 (en) * | 2009-03-24 | 2012-07-03 | Crespo Rusbel T | Dual drill and anchoring device |
| CN202240419U (en) * | 2011-09-08 | 2012-05-30 | 江阴市长龄机械制造有限公司 | Synchronous bolt tightening device |
| CN202527921U (en) * | 2012-04-06 | 2012-11-14 | 中国重汽集团济南动力有限公司 | Tightening device for gear clamp nut |
| CN202934508U (en) * | 2012-09-17 | 2013-05-15 | 济南吉利汽车有限公司 | Gear type fastening tool for bolts |
| CN203092438U (en) * | 2013-03-28 | 2013-07-31 | 张祥华 | High-efficiency combined nut wrench |
| CN203526932U (en) * | 2013-10-18 | 2014-04-09 | 浙江双博阀门有限公司 | Large-diameter nut tightening device |
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| CN105522537A (en) | 2016-04-27 |
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Address after: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Patentee after: China Hangfa commercial aviation engine limited liability company Address before: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Patentee before: AVIC Commercial Aircraft Engine Co.,Ltd. |