CN106541363A - Locking nut is tightened and back off tool - Google Patents
Locking nut is tightened and back off tool Download PDFInfo
- Publication number
- CN106541363A CN106541363A CN201510595126.2A CN201510595126A CN106541363A CN 106541363 A CN106541363 A CN 106541363A CN 201510595126 A CN201510595126 A CN 201510595126A CN 106541363 A CN106541363 A CN 106541363A
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- China
- Prior art keywords
- locking nut
- torque axis
- support
- gear
- torque
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
Abstract
The present invention relates to a kind of locking nut is tightened and back off tool, the simultaneously locking nut of axial lock gear is set on gear shaft for tightening and unclamping, including torque axis and support, support is connected with gear, and fix relative to gear and gear shaft, to prevent gear shaft and gear from rotating with release process in tightening for locking nut, support has hollow cavity, torque axis is arranged in the hollow cavity of support, and can be relative to the inner surface movement of support, the first end of torque axis is mutually clamped with locking nut, tightening and release for locking nut is realized with the torque of the second end by putting on torque axis.By support is fixed, can effectively prevent gear shaft and gear from rotating with release process in tightening for locking nut, the assembling of aero-engine and the efficiency decomposed can be improved, more conform to the assembling and the requirement decomposed of aero-engine；In addition, can also overcome the more narrow problem for being inconvenient to exert a force in space of locking nut installation site.
Description
Technical field
The present invention relates to technical field of engineering machinery, more particularly to a kind of locking nut tighten with
Back off tool.
Background technology
The mounting technology of aero-engine is related to the installation of a large amount of baroque special nuts, example
Such as high-pressure compressor front end gear locking nut, whether these special nuts are installed in place to starting
The operation of machine plays safely vital effect.In engine assembly and decomposable process,
In the tightening of these nuts, release process, torque and protection screw thread etc. are required it is very strict,
Therefore need the device of design specialized to perform these strict operations.
Locking operation is carried out to locking nut mainly following several ways at present：Torque spanner is locked
Tightly, common wrench locking and hammering method locking.All there is different degrees of lacking in these locking modes
Fall into.Torque spanner is locked and the shortcoming of common wrench locking is all occur to become when locking nut size
Need to select correspondingly sized spanner to carry out locking operation during change, not only spanner quantity is more, and
The associated spanner of large scale locking nut is heavier, operates the efficiency that wastes time and energy low, and power
Square spanner can only carry out locking operation in shaft end, and the restriction that there is distance is locked in shaft end, though
Accurate torque locking can be so realized, but is affected larger by objective environment in operation；Hammering method
Although locking is not affected by locking nut size, locked position, in operation easily
Chip pollution ambient influnence result of the test is produced, misoperation can also produce impression, affect a whole set of
Experimental facilities installation accuracy, and hammering method easily damages locking nut so as to cannot dismantle.
There is the office that 26S Proteasome Structure and Function is suitable for release frock in tightening for existing locking nut
It is sex-limited, such as complex operation, the anti-rotation, the design of guiding in shortage operating process, frock knot
The defect such as structure is scattered, therefore also need development to be suitable for special nut in aero-engine assembling process
Tighten and unclamp device, with meet aero-engine assembling decompose require.
The content of the invention
The purpose of the present invention is to propose to a kind of locking nut is tightened and back off tool, more according with
Close aero-engine assembling and the requirement decomposed.
For achieving the above object, the invention provides a kind of locking nut tighten and unclamp work
Tool, is set on gear shaft the simultaneously locking nut of axial lock gear, bag for tightening and unclamping
Torque axis and support are included, the support is connected with the gear, and relative to the gear and institute
State gear shaft to fix, to prevent the gear shaft and the gear tightening in the locking nut
Rotate with release process, the support has hollow cavity, the torque axis is arranged in described
The hollow cavity of support, and can be relative to the inner surface movement of the support, the torque axis
First end be mutually clamped with the locking nut, with by putting on the of the torque axis
The torque of two ends realizes tightening and release for the locking nut.
Further, also include the Brake Block with hollow cavity, the torque axis can be passed through
The hollow cavity of the hollow cavity of the support and the Brake Block, one end edge of the Brake Block
Circumferentially there are multiple extension pawls, the gear is circumferentially arranged with multiple locking grooves, the extension pawl energy
Enough be inserted in the locking groove so that the support pass through the Brake Block and the extension pawl with
The gear is fixedly connected.
Further, the support is set on the Brake Block, and is connected by spline fitted.
Further, the Brake Block is connected by screw with the extension pawl.
Further, screw thread is provided between the second end of the torque axis and the support
Ring, the threaded collar are the tubular construction with hollow cavity, and the threaded collar is set in described
On the outer surface of torque axis, the outer surface of the threaded collar is mutually pasted with the inner surface of the support
Close, and can relative to the bracket slide, and enable to the outer surface of the torque axis with
The inner surface of the Brake Block is bonded to each other.
Further, the support is provided with first baffle near the side of the threaded collar, institute
State threaded collar to be bolted to connection on the first baffle.
Further, one end of the locking nut is circumferentially arranged with spaced apart torsional channel,
Form raised between the adjacent torsional channel, the first end of the torque axis circumferentially arranged with
Spaced apart torsion pass tooth, the torsional channel are cooperated with the torsion pass tooth, so that the torsion
Square axle is mutually clamped with the locking nut.
Further, the side of the torsion pass tooth is provided with axial limiting tooth, the raised interior table
Face is provided with axial restraint groove, and the axial limiting tooth is inserted in the axial restraint groove,
To connect the torque axis and the locking nut, and it is prevented from the torque axis disengagement.
Further, the end of the gear shaft is provided with locking elastic ring, described for preventing
Locking nut loosens, and the first end of the torque axis is provided with end tooth pressure ring, for backing down simultaneously
Compress the locking elastic ring.
Further, also including guide, the torque axis has hollow cavity, described to draw
Lead the hollow cavity that device is arranged in the torque axis, and ensure the axis of the guide with
The dead in line of the torque axis, to guide the torque axis and realize the locking nut and institute
State aligning for screw thread on gear shaft.
Further, the guide includes the axle being fixedly connected and seeker, and the axle leads to
Cross the seeker to be installed on the inner surface of the gear shaft, the outer surface of the seeker with
The inner surface of the gear shaft is bonded to each other, so that the locking nut is guided and be aligned.
Further, the second end outer surface of the torque axis is provided with spline head, the spline
Head is used to install torque multiplier.
Based on above-mentioned technical proposal, tighten and the back off tool of the locking nut of the present invention include turning round
Square axle and support, support are connected with gear, and support is fixed relative to gear and gear shaft,
Gear and gear shaft tightening and release process transfer in locking nut can be effectively prevented so
It is dynamic, it is to avoid to cause locking nut smoothly cannot tighten and release as gear and gear shaft are rotated,
The assembling of aero-engine and the efficiency decomposed can be improved, the assembling of aero-engine is more conformed to
With the requirement decomposed；In addition, by arranging torque axis, the power of locking nut can be put on
Square is transferred to the end of torque axis in itself by locking nut, can so overcome locking nut to install
The more narrow problem for being inconvenient to exert a force in the space of position.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the application
A part, the schematic description and description of the present invention is used to explain the present invention, not structure
Into inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 locking nuts of the present invention and locking nut are cooperated with gear shaft, gear
The structural representation of one embodiment.
Fig. 2 is the structural representation tightened with back off tool one embodiment of locking nut of the present invention
Figure.
Fig. 3 is the cutting signal tightened with back off tool one embodiment of locking nut of the present invention
Figure.
Fig. 4 is the structural representation of first end one embodiment of torque axis of the present invention.
Fig. 5 be locking nut of the present invention tighten with back off tool one embodiment operation when
Structural representation.
Fig. 6 is the structural representation of torque axis one embodiment of the present invention.
In figure：1- locking nuts, 2- gear shafts, 3- gears, 4- locking grooves, 5- thread segments, 6-
Locking elastic ring, 7- torsional channels, 8- axial restraint grooves, 9- are raised；
11- hangs pawl, 12- Brake Blocks, 13- screws, 14- guides, 141- axles, 142- guiding
Head, 15- supports, the first bolts of 16-, 17- threaded collars, 18- torque axis, 19- end tooth pressure rings,
20- spline heads, the second bolts of 21-, the 3rd bolts of 22-, 23- torque multipliers, 24- torsion pass teeth,
25- grooves, 26- axial limiting teeth, 27- first baffles, 28- second baffles.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is carried out
Clearly and completely describe.Obviously, described embodiment is only a part of reality of the present invention
Apply example, rather than the embodiment of whole.Based on embodiments of the invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to
The scope of protection of the invention.
In describing the invention, it is to be understood that term " " center ", " horizontal ",
" longitudinal direction ", "front", "rear", "left", "right", " on ", it is D score, " perpendicular
Directly ", the orientation of instruction such as " level ", " top ", " bottom ", " interior ", " outward " or
Position relationship is, based on orientation shown in the drawings or position relationship, to be for only for ease of and describe this
Bright and simplified description, rather than indicate or imply that the device or element of indication must have specifically
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to the scope of the present invention
Restriction.
As shown in figure 1, being locking nut of the present invention and locking nut and gear shaft, gear phase
The structural representation of the one embodiment for mutually coordinating.Gear 3 is by covering tooth or spline fixed installation
On gear shaft 2, the front end of gear shaft 2 is provided with thread segment 5, the inner surface of locking nut 1
Be provided with screw thread, locking nut 1 is set on gear shaft 2, and by the screw thread of inner surface with
Thread segment 5 on gear shaft 2 cooperates, and carries out axial lock to gear 3.
As shown in figure 3, tightening and back off tool one embodiment for locking nut of the present invention
Cut-away illustration.Tighten and the back off tool of the locking nut includes torque axis 18 and support 15,
The support 15 is connected with the gear 3, and relative to the gear 3 and the gear shaft 2
It is fixed, with prevent the gear shaft 2 and the gear 3 the locking nut 1 tighten with
Rotate in release process, the support 15 has hollow cavity, the torque axis 18 is arranged in
The hollow cavity of the support 15, and can relative to the inner surface movement of the support 15,
The first end of the torque axis 18 is mutually clamped with the locking nut 1, with by putting on
The torque of the second end of the torque axis 18 realizes tightening and release for the locking nut 1.
In above-described embodiment, tighten and the back off tool of locking nut include torque axis and support,
Support is connected with gear, and support is fixed relative to gear and gear shaft, so can be effective
Prevent gear and gear shaft from rotating with release process in tightening for locking nut, it is to avoid due to tooth
Wheel and gear shaft are rotated and cause locking nut smoothly cannot tighten and release, can improve aeroplane engine
The assembling of machine and the efficiency decomposed, more conform to the assembling and the requirement decomposed of aero-engine；
In addition, by arranging torque axis, can be maternal by locking screw by the torque for putting on locking nut
Body is transferred to the end of torque axis, can so overcome the space of locking nut installation site more
The narrow problem for being inconvenient to exert a force.
The specific constructive form of above-described embodiment medium-height trestle 15 can have various different selections,
As long as enabling to support 15 to fix relative to gear 3 and gear shaft 2, and play and prevent
The tightening and the effect rotated in release process in locking nut 1 of gear 3.
As shown in Fig. 2 support 15 is tubular construction, the hollow cavity of support 15 preferably sets
Cylinder is set to, it is to facilitate torque axis 18 to rotate in which and easily fabricated.Support 15
Profile can for cylinder, or square or other shapes.In Fig. 2 embodiments,
Four legs are provided with the outer surface of support 15, four legs are provided with through hole, support 15
Can be fixedly mounted on fixture by multiple first bolts 16, fixture can be to maintain static
Any structure, such as in aero-engine, support 15 can be fixed on stator part, with
Gear 3 and gear shaft 2 is made to tighten or unclamp during locking nut 1 relative to stator part
Maintain static, it is to avoid the rotation of gear 3 and gear shaft 2 is to tightening or unclamping 1 mistake of locking nut
The impact of journey.
In order to realize the connection of support 15 and gear 3, can directly on the end edge of support 15
Circumferentially multiple extension pawls 11, are connected with gear 3 by hanging pawl 11；Can also be in support 15
The Brake Block 12 with hollow cavity arrange between pawl 11 with being hung, the torque axis 18 can be worn
Cross the hollow cavity of the hollow cavity and the Brake Block 12 of the support 15, the Brake Block
Circumferentially there are multiple extension pawls 11 12 one end, as shown in figure 1, the gear 3 is circumferentially
It is provided with multiple locking grooves 4, it is preferable that locking groove 4 is slotted hole, hangs pawl 11 and there is hook portion,
The extension pawl 11 can be inserted in the locking groove 4, so that the support 15 is by described
Brake Block 12 and the extension pawl 11 are fixedly connected with the gear.
Wherein, it is fixedly connected between support 15 and Brake Block 12, its specific implementation can be with
There is more flexible selection, such as can be with bolts or pin joint etc..At one preferably
Embodiment in, the support 15 is set on the Brake Block 12, and pass through spline fitted
Connection.Specifically, the inner surface of support 15 is provided with spline, and the outer surface of Brake Block 12 is provided with
Spline, support 15 are set in the outside of Brake Block 12, to realize support 15 by spline fitted
With the connection of Brake Block 12.In addition, being matched somebody with somebody using spline between support 15 and Brake Block 12
Close connection to be also an advantage that, can be just to the axial position between support 15 and Brake Block 12
Put and be finely adjusted, can increase or shorten the entire length of instrument according to actual needs.
In addition, Brake Block 12 and the connected mode hung between pawl 11 can also select bolt connection
Or pin joint etc..In a preferred embodiment, the Brake Block 12 and the extension pawl 11
Connected by screw 13.Before locking nut 1 is tightened and is unclamped, can first by spiral shell
Nail 13 unclamps, and the head for hanging pawl 11 is hooked in the locking groove 4 of 3 rear portion of gear setting,
Then again screw 13 is tightened, to realize the connection of support 15 and gear 3.
As support 15 is set on Brake Block 12, the diameter of the hollow cavity of support 15 is big
In the diameter of the hollow cavity of Brake Block 12, therefore when torque axis 18 is located in by support 15
Hollow cavity and Brake Block 12 the passage that formed of hollow cavity in when, torque axis 18 with
There is between the inner surface of support 15 certain space.Due to the presence in the space, in locking screw
In female 1 release process, when torque axis 18 is retracted into departs from the inner surface of Brake Block 12,
The axis of torque axis 18 may be deviateed, can make locking nut 1 cannot with gear shaft 2 on
Screw thread is aligned.
In order to solve the above problems, in a preferred embodiment, the torque axis 18
Be provided with threaded collar 17 between the second end and the support 15, the threaded collar 17 be with
The tubular construction of hollow cavity, the threaded collar 17 are set in the outer surface of the torque axis 18
On, the outer surface of the threaded collar 17 is bonded to each other with the inner surface of the support 15, and energy
It is enough to slide relative to the support 15, and enable to outer surface and the institute of the torque axis 18
The inner surface for stating Brake Block 12 is bonded to each other.So, the twisting in locking nut 1 of threaded collar 17
Tightly with can play a part of to align and feel relieved in release process, the axis of bootable torque axis 18
Without departing from.
In addition, space can be arranged in threaded collar 17 and the back segment bonded to each other of support 15, use
In injection lubricating oil, inner surface of the threaded collar 17 more successfully relative to support 15 is enable
Slide.Connected mode between threaded collar 17 and torque axis 18 to weld or can be spirally connected,
Preferably, the inner surface of threaded collar 17 is provided with screw thread, and the outer surface of torque axis 18 is provided with screw thread,
Therebetween connection is threadably secured, can so realizes that torque axis 18 drives threaded collar 17
Along support 15 inner surface slide, and torque axis 18 near the part of first end along Brake Block
12 inner surface slides.
Tightening with release process in locking nut 1, threaded collar 17 is with torque axis 18
Rotate, when torque axis 18 is not rotated, threaded collar 17 can be fixed on support 15.Specifically
Ground, in a preferred embodiment, the support 15 is near the side of the threaded collar 17
First baffle 27 is provided with, when torque axis 18 quits work, the threaded collar 17 can be led to
Cross the 3rd bolt 22 to be fixedly connected on the first baffle 27, to prevent threaded collar 17 whole
Come off from torque axis 18 in the moving process of individual instrument.
As shown in figure 1, one end of the locking nut 1 is circumferentially arranged with spaced apart moment of torsion
Groove 7, forms raised 9 between the adjacent torsional channel 7,9 equal edges of the torsional channel 7 and projection
The axial direction of locking nut 1 is extended；As shown in figure 4, the first end of the torque axis 18
Circumferentially arranged with spaced apart torsion pass tooth 24, groove 25 between adjacent torsion pass tooth 24, is formed,
The axial direction of torsion pass tooth 24 and groove 25 along torque axis 18 is extended, the torsional channel 7
Cooperate with the torsion pass tooth 24, so that the torque axis 18 and 1 phase of the locking nut
Mutually engage.Certainly, for locking nut 1 as shown in Figure 1, the end of torque axis 18 can be with
The torsion pass tooth 24 coordinated with its torsional channel 7 is set, realize torque axis 18 and locking nut 1 it
Between engaging, for the locking nut 1 of other forms, the end of torque axis 18 can also be arranged
Other structures, to lock nut 1, realize the connection of torque axis 18 and locking nut 1.
In order to prevent torque axis 18 locking nut 1 tighten or release process in vertically
Play, as shown in figure 4, axial limiting tooth can be provided with the side in the torsion pass tooth 24
26, the side is referred to along the side of 24 circumference of torsion pass tooth, and axial limiting tooth 26 is on protrusion
The tooth of side is stated, as shown in figure 1, raised 9 inner surface is provided with axial restraint groove 8,
The inner surface of the projection 9 refers to the surface of the raised axis near locking nut 1, the axle
Be inserted in the axial restraint groove 8 to limiting tooth 26, with connect the torque axis 18 with
The locking nut 1, and be prevented from the torque axis 18 and disengage.Axial limiting tooth 26 blocks
Close in axial restraint groove 8, can prevent from tightening with locking nut in release process 1 along axle
To motion, that is, prevent torque axis 18 from disengaging from locking nut 1 in rotation process.
As shown in figure 1, the end of the gear shaft 2 is provided with locking elastic ring 6, for preventing
Only the locking nut 1 is lower in working order loosens, and the working condition refers to locking nut 1
After tightening, locking nut 1 and gear 3, gear shaft 2 generally in working condition.This is prevented
Loose elastic ring 6 was the state for sticking up before locking nut 1 is tightened, in order to prevent in locking
Nut 1 tighten in place before just by 6 locking of locking elastic ring, in a preferred embodiment,
The first end of the torque axis 18 is provided with end tooth pressure ring 19, described for backing down and compressing
Locking elastic ring 6, to ensure that locking nut 6 can be assembled in place.End tooth pressure ring 19 can be consolidated
Surely the first end of torque axis 18 is connected to, is such as spirally connected, is welded or pin joint etc., it is also possible to
It is integrally manufactured with torque axis 18.Preferably, end tooth pressure ring 19 is welded to connect with torque axis 18,
It is easily achieved.
In order to further help locking nut 1 to be felt relieved and be aligned, locking nut of the present invention
Tightening can also include guide 14 with back off tool, and the torque axis 18 has in hollow
Chamber, the guide 14 are arranged in the hollow cavity of the torque axis 18, and ensure described
The dead in line of the axis of guide 14 and the torque axis 18, to guide the torque axis
18 and realize that the locking nut 1 is aligned with screw thread on the gear shaft 2.The guide
14, can be before tightening, first guiding torque axis 18 will be locking nut 1 unswerving in axis
In the case of be correctly set in the thread segment of gear shaft 2, axis is without departing from can avoid screw thread
Damage；Then in rundown process, it is also ensured that locking nut 1 is entered with screw thread without departing from ground
Row cooperation is tightened；In release process, it is also possible to prevent axis from deviateing the screw thread for causing and damage.
The structure of specific guide 14 can have more flexible selection, at one preferably
Embodiment in, the guide 14 includes the axle 141 being fixedly connected and seeker 142,
The axle 141 is installed on the inner surface of the gear shaft 2 by the seeker 142, institute
The outer surface for stating seeker 142 is bonded to each other with the inner surface of the gear shaft 2, with to described
Locking nut 1 is guided and is aligned.The effect of the seeker 142 is to cause axle 141
It is made relatively carefully, so as to mitigate the weight of whole frock tool, as long as the end of seeker 142
Can fit with the inner surface of gear shaft 2 in portion.
In embodiment as shown in Figure 3, seeker 142 is stair-stepping cylindrical structure form,
Certainly this is a kind of preferred constructive form of seeker, does not constitute limitation ot it, is guided
142 specific constructive form can have multiple choices, as long as its end can be with gear shaft 2
Inner surface it is bonded to each other.In another embodiment as shown in Figure 6, seeker 142 is
Pyramidal structure form.
In addition, axle 141 can be made into hollow, or cavity is dug on 141 outer surface of axle,
Further to mitigate overall weight.
In addition, torque axis 18, end tooth pressure ring 19, Brake Block 12 and support 15 can dig
Cavity, to mitigate the overall weight of instrument.
In order to reduce artificial participation, manpower is saved, in a preferred embodiment, such as Fig. 5
Shown, the second end outer surface of the torque axis 18 is provided with spline head 20, and spline head 20 can
So that the second end of torque axis 18, the spline head 20 are fixedly connected on by the second bolt 21
For installing torque multiplier 23, the torque multiplier 23 may be mounted at on support 15
On the second baffle 28 that first baffle 27 is fixedly connected.Can be realized greatly using torque multiplier
Torque tightens requirement, and its Interface Expanding is good, can use cooperatively with pneumatic impact spanner,
Tightening for high-torque is facilitated implementation, the efficiency in operating process is improved.
Below in conjunction with the accompanying drawings 1～5, tightened with back off tool to locking nut of the present invention
The assembly relation and the course of work of embodiment is described in detail：
Referring to Fig. 1, gear 3 is arranged on gear shaft 2 by covering tooth, and locking nut 1 passes through
Being threadably mounted on gear shaft 2 is used for axial lock gear 3.Gear 3 is provided with locking groove 4,
For fixed stop, the front end of locking nut 1 is provided with torsional channel 7 to be used for axial restraint groove 8
Apply torque, between locking nut 1 and gear shaft 2, coordinate locking with locking elastic ring 6.
Specific each part matching relationship as shown in Figure 2-5, Brake Block 12, preferably cylinder
Shape structure, outer surface have spline, and front end is connected with pawl 11 is hung by screw 13, hangs pawl 11
It is buckled in the locking groove 4 on gear 3.Hang pawl 11 and pass through screw with columnar Brake Block 12
13 are connected.Four legs are provided with outside support 15, inner surface has spline, by the first bolt
16 are fixed with outer stator part, internal by covering on the spline that tooth is arranged on outside Brake Block 12,
Gear 3 is connected with external structure, the rotation in operating process is prevented.Threaded collar 17
The outside of torque axis 18 is tightened in by internal thread, torque axis 18 passes through Brake Block 12 and support
15, it is possible to slide in inner surface.Torque axis 18, tubular structure are dismountable, torque axis 18
Front end be provided with torsion pass tooth 24, it is complementary with the torsional channel 7 of locking nut 1, for applying torque,
Axial limiting tooth 26 is used for axial lock torque axis 18, referring to Fig. 4.The front end of torque axis 18
After contacting with locking nut 1, the columnar end tooth of the front portion of torque axis 18 is preferably welded on
Pressure ring 19 can back down locking elastic ring 6.The spline head 20 of 18 rear end of torque axis can be by outer
The spline toe joint torque multiplier 23 on surface and pneumatic impact spanner etc..Guide 14, preferably
Major axis shape, is installed on the inner surface of gear shaft 2 by seeker 142, with torque axis 18
Internal cylindrical conduit coordinates, freely slidable inside pipeline, before facilitating thread contact
Align and operating process in centering with guiding, prevent the thread damage in operating process.
Specifically the course of work is：It is integrally formed after whole instrument installation, first by screw
13 unscrew, and will hang pawl 11 and are buckled on the locking groove 4 at 3 rear portion of gear, then tighten screw 13；
Support 15 is fixedly connected with stator part by the first bolt 16 again, so realizes support
15th, the fixation of gear 3 and gear shaft 2；Locking nut 1 is fastened on into the first of torque axis 18
End, makes the torsion pass tooth 24 of the torsional channel 7 on locking nut 1 and 18 first end of torque axis
It is mutually clamped, and axial limiting tooth 26 is inserted into the axial restraint in the projection 9 of locking nut 1
Groove, to carry out axially position to torque axis 18；Then by the seeker 142 of guide 14
The inner surface of gear shaft 2, rotation torque axle 18 are acted against, while entering using guide 14
Row is guided and is aligned, and locking nut 1 is enclosed within the thread segment of gear shaft 2, continues rotation torque
Locking elastic ring 6 is backed down by axle 18 using end tooth pressure ring 19, continues rotation torque axle 18,
Locking nut 1 is tightened.In the rotation process of torque axis 18, can be on spline head 20
Assembling torque multiplier 23, is coordinated with pneumatic impact spanner and applies torque to torque axis 18.
When needing to unclamp locking nut 1, torque axis 18 is reversely rotated, while using guiding dress
Put 14 to guide, when preventing torque axis 18 from returning, axis runout causes screw thread to damage.Work as torsion
When square axle 18 drives locking nut 1 to completely disengage from thread segment 5, dismantlement work is finished.
In the embodiment of the present invention, force application part and brake component in the front end of locking nut 1,
More traditional split type instrument is more integrated and stable.Prosenchymatous guide 14 and torsion in addition
Cylindrical conduit inside square axle 18 coordinates guiding, centering, and more traditional instrumental function is more excellent
Change, it is more convenient to operate, and operating process is more not easy part of damage.
By the explanation tightened with multiple embodiments of back off tool to locking nut of the present invention,
Can see that tightening for locking nut of the present invention at least has following one kind with back off tool embodiment
Or various advantages：
1st, invert stop measure：Support is fixed, gear and gear in rundown process, is prevented
The rotation of axle, increased the accuracy and efficiency of torque applying.Support as frock stator part,
In the frock tumbler such as torque axis is included in, the possibility that tumbler is caused danger is reduced.
2nd, guide, align, feel relieved：There is guide to guide in operating process, can be with
Conveniently align, screw thread damage occurs due to axis runout in can also preventing from tightening release process manually
The situation of wound.
3rd, meet high-torque and tighten requirement：Need to realize when tightening of high-torque in operating process,
Can be realized by increasing torque multiplier.
Finally it should be noted that：Above example only illustrating technical scheme and
It is non-which is limited；It is although being described in detail to the present invention with reference to preferred embodiment, affiliated
The those of ordinary skill in field should be understood：Still the specific embodiment of the present invention can be entered
Row modification carries out equivalent to some technical characteristics；Without deviating from technical solution of the present invention
Spirit, which all should be covered in the middle of the technical scheme scope being claimed in the present invention.
Claims (12)
1. a kind of locking nut is tightened and back off tool, is set in tooth with release for tightening
On wheel shaft (2) and axial lock gear (3) locking nut (1), it is characterised in that bag
Torque axis (18) and support (15) are included, the support (15) is connected with the gear (3),
And it is fixed relative to the gear (3) and the gear shaft (2), to prevent the gear shaft
(2) rotate with release process in tightening for the locking nut (1) with the gear (3),
With hollow cavity, the torque axis (18) is arranged in the support (15) to the support (15)
Hollow cavity, and can be relative to the inner surface movement of the support (15), the moment of torsion
The first end of axle (18) is mutually clamped with the locking nut (1), with by putting on
The torque for stating the second end of torque axis (18) realizes tightening and pine for the locking nut (1)
Open.
2. locking nut according to claim 1 is tightened and back off tool, its feature
It is also to include the Brake Block with hollow cavity (12), the torque axis (18) can
Through the hollow cavity of the hollow cavity and the Brake Block (12) of the support (15), institute
Circumferentially there are multiple extensions pawl (11), the gear (3) in the one end for stating Brake Block (12)
Circumferentially arranged with multiple locking grooves (4), extension pawl (11) can be inserted in the locking groove
(4) in, so that the support (15) is by the Brake Block (12) and extension pawl (11)
It is fixedly connected with the gear.
3. locking nut according to claim 2 is tightened and back off tool, its feature
It is that the support (15) is set on the Brake Block (12), and passes through spline fitted
Connection.
4. locking nut according to claim 2 is tightened and back off tool, its feature
It is that the Brake Block (12) is connected by screw (13) with extension pawl (11).
5. locking nut according to claim 2 is tightened and back off tool, its feature
It is to be provided with spiral shell between the second end and the support (15) of the torque axis (18)
Line ring (17), the threaded collar (17) is the tubular construction with hollow cavity, the spiral shell
Line ring (17) is set on the outer surface of the torque axis (18), the threaded collar (17)
Outer surface it is bonded to each other with the inner surface of the support (15), and can be relative to described
Frame (15) slides, and enables to the outer surface and the Brake Block of the torque axis (18)
(12) inner surface is bonded to each other.
6. locking nut according to claim 5 is tightened and back off tool, its feature
It is that the support (15) is provided with first baffle near the side of the threaded collar (17)
(27), the threaded collar (17) can be fixedly connected on described by the 3rd bolt (22)
On first baffle (27).
7. locking nut according to claim 1 is tightened and back off tool, its feature
Be, one end of the locking nut (1) circumferentially arranged with spaced apart torsional channel (7),
Formed raised (9) between the adjacent torsional channel (7), the of the torque axis (18)
One end circumferentially arranged with spaced apart torsion pass tooth (24), the torsional channel (7) with it is described
Torsion pass tooth (24) cooperates, so that the torque axis (18) and the locking nut (1)
It is mutually clamped.
8. locking nut according to claim 7 is tightened and back off tool, its feature
It is that the side of the torsion pass tooth (24) is provided with axial limiting tooth (26), the projection (9)
Inner surface be provided with axial restraint groove (8), the axial limiting tooth (26) is inserted into institute
State in axial restraint groove (8), to connect the torque axis (18) and the locking nut (1),
And it is prevented from the torque axis (18) disengagement.
9. locking nut according to claim 7 is tightened and back off tool, its feature
It is that the end of the gear shaft (2) is provided with locking elastic ring (6), for preventing
Locking nut (1) loosening is stated, the first end of the torque axis (18) is provided with end tooth pressure ring
(19), for backing down and compress the locking elastic ring (6).
10. locking nut according to claim 1 is tightened and back off tool, its feature
It is that, also including guide (14), the torque axis (18) is with hollow cavity, institute
The hollow cavity that guide (14) is arranged in the torque axis (18) is stated, and ensures described
The axis of guide (14) and the dead in line of the torque axis (18), it is described to guide
Torque axis (18) simultaneously realizes the locking nut (1) with screw thread on the gear shaft (2)
Align.
11. locking nuts according to claim 10 are tightened and back off tool, and which is special
Levy and be, the guide (14) includes the axle (141) and seeker (142) being fixedly connected,
The axle (141) is installed on the interior table of the gear shaft (2) by the seeker (142)
On face, the outer surface of the seeker (142) is mutual with the inner surface of the gear shaft (2)
Laminating, so that the locking nut (1) is guided and be aligned.
12. locking nuts according to claim 1 are tightened and back off tool, its feature
It is that the second end outer surface of the torque axis (18) is provided with spline head (20), described
Spline head (20) is for installing torque multiplier (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595126.2A CN106541363B (en) | 2015-09-18 | 2015-09-18 | Locking nut tighten and back off tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595126.2A CN106541363B (en) | 2015-09-18 | 2015-09-18 | Locking nut tighten and back off tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106541363A true CN106541363A (en) | 2017-03-29 |
| CN106541363B CN106541363B (en) | 2018-07-10 |
Family
ID=58362849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510595126.2A Active CN106541363B (en) | 2015-09-18 | 2015-09-18 | Locking nut tighten and back off tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106541363B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097066A (en) * | 2017-05-24 | 2017-08-29 | 徐工集团工程机械有限公司 | Location nut provision for disengagement |
| CN108080939A (en) * | 2017-12-12 | 2018-05-29 | 大连理工大学 | A kind of preposition nut tightening device of aircraft engine high pressure rotor seal pan and method |
| CN110052819A (en) * | 2019-05-07 | 2019-07-26 | 南昌矿山机械有限公司 | The broken connected automatic attaching/detaching apparatus of rack of one kind and method |
| CN111673680A (en) * | 2020-04-30 | 2020-09-18 | 中国航发南方工业有限公司 | Rotor assembly assembling and disassembling tool |
| CN112276539A (en) * | 2019-07-25 | 2021-01-29 | 中国航发商用航空发动机有限责任公司 | Device and method for screwing nut of aircraft engine |
| CN112388293A (en) * | 2019-08-14 | 2021-02-23 | 中国航发商用航空发动机有限责任公司 | Nut force limiting device |
| CN113370153A (en) * | 2021-06-30 | 2021-09-10 | 中国航发贵州黎阳航空动力有限公司 | Torque amplification type nut dismounting device |
| CN113400254A (en) * | 2021-05-14 | 2021-09-17 | 中国航发哈尔滨东安发动机有限公司 | Thread decomposing device of self-locking mechanism |
| CN113478431A (en) * | 2021-07-22 | 2021-10-08 | 哈尔滨电气动力装备有限公司 | Large-scale shielding motor thrust disc nut mounting and locking process |
| CN113770972A (en) * | 2020-06-09 | 2021-12-10 | 中国航发商用航空发动机有限责任公司 | Screwing and loosening device for special nut |
| CN113858119A (en) * | 2020-06-30 | 2021-12-31 | 中国航发商用航空发动机有限责任公司 | Unlocking tool |
| CN113878328A (en) * | 2021-11-10 | 2022-01-04 | 中国航发南方工业有限公司 | Flow guide disc assembling device and method |
| CN113894731A (en) * | 2021-10-10 | 2022-01-07 | 中国航发沈阳发动机研究所 | Deep shaft cavity compression nut screwing force limiting tool |
| CN114207233A (en) * | 2019-08-08 | 2022-03-18 | 格罗夫设计(彭布里奇)有限公司 | Supporting structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4668143A (en) * | 1984-01-09 | 1987-05-26 | Rotar Lawrence J | Lock nut for automobile stereo systems |
| CN2728719Y (en) * | 2004-09-10 | 2005-09-28 | 中国重型汽车集团有限公司 | Special setting and loosening tool for self-locking nut of driving bridge main reducing input flange |
| CN201669638U (en) * | 2010-05-24 | 2010-12-15 | 重庆长安汽车股份有限公司 | Assembly tool part of locking nut |
| CN103878743A (en) * | 2014-03-26 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Assembling and disassembling tool for gear shaft round nut |
| CN204209607U (en) * | 2014-10-09 | 2015-03-18 | 索特传动设备有限公司 | A kind of locking device of locking nut of planet gear speed reducer |
| CN204997619U (en) * | 2015-09-18 | 2016-01-27 | 中航商用航空发动机有限责任公司 | Lock nut screws up and loosens instrument |
-
2015
- 2015-09-18 CN CN201510595126.2A patent/CN106541363B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4668143A (en) * | 1984-01-09 | 1987-05-26 | Rotar Lawrence J | Lock nut for automobile stereo systems |
| CN2728719Y (en) * | 2004-09-10 | 2005-09-28 | 中国重型汽车集团有限公司 | Special setting and loosening tool for self-locking nut of driving bridge main reducing input flange |
| CN201669638U (en) * | 2010-05-24 | 2010-12-15 | 重庆长安汽车股份有限公司 | Assembly tool part of locking nut |
| CN103878743A (en) * | 2014-03-26 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Assembling and disassembling tool for gear shaft round nut |
| CN204209607U (en) * | 2014-10-09 | 2015-03-18 | 索特传动设备有限公司 | A kind of locking device of locking nut of planet gear speed reducer |
| CN204997619U (en) * | 2015-09-18 | 2016-01-27 | 中航商用航空发动机有限责任公司 | Lock nut screws up and loosens instrument |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097066A (en) * | 2017-05-24 | 2017-08-29 | 徐工集团工程机械有限公司 | Location nut provision for disengagement |
| CN108080939A (en) * | 2017-12-12 | 2018-05-29 | 大连理工大学 | A kind of preposition nut tightening device of aircraft engine high pressure rotor seal pan and method |
| 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 |
| CN110052819A (en) * | 2019-05-07 | 2019-07-26 | 南昌矿山机械有限公司 | The broken connected automatic attaching/detaching apparatus of rack of one kind and method |
| CN112276539A (en) * | 2019-07-25 | 2021-01-29 | 中国航发商用航空发动机有限责任公司 | Device and method for screwing nut of aircraft engine |
| CN114207233A (en) * | 2019-08-08 | 2022-03-18 | 格罗夫设计(彭布里奇)有限公司 | Supporting structure |
| CN114207233B (en) * | 2019-08-08 | 2023-09-22 | 格罗夫设计(彭布里奇)有限公司 | Supporting structure |
| CN112388293A (en) * | 2019-08-14 | 2021-02-23 | 中国航发商用航空发动机有限责任公司 | Nut force limiting device |
| CN112388293B (en) * | 2019-08-14 | 2022-06-28 | 中国航发商用航空发动机有限责任公司 | Nut force limiting device |
| CN111673680B (en) * | 2020-04-30 | 2022-04-19 | 中国航发南方工业有限公司 | Rotor assembly assembling and disassembling tool |
| CN111673680A (en) * | 2020-04-30 | 2020-09-18 | 中国航发南方工业有限公司 | Rotor assembly assembling and disassembling tool |
| CN113770972A (en) * | 2020-06-09 | 2021-12-10 | 中国航发商用航空发动机有限责任公司 | Screwing and loosening device for special nut |
| CN113858119A (en) * | 2020-06-30 | 2021-12-31 | 中国航发商用航空发动机有限责任公司 | Unlocking tool |
| CN113858119B (en) * | 2020-06-30 | 2022-12-20 | 中国航发商用航空发动机有限责任公司 | Unlocking tool |
| CN113400254A (en) * | 2021-05-14 | 2021-09-17 | 中国航发哈尔滨东安发动机有限公司 | Thread decomposing device of self-locking mechanism |
| CN113400254B (en) * | 2021-05-14 | 2023-01-06 | 中国航发哈尔滨东安发动机有限公司 | Thread decomposing device of self-locking mechanism |
| CN113370153A (en) * | 2021-06-30 | 2021-09-10 | 中国航发贵州黎阳航空动力有限公司 | Torque amplification type nut dismounting device |
| CN113370153B (en) * | 2021-06-30 | 2022-09-30 | 中国航发贵州黎阳航空动力有限公司 | Torque amplification type nut dismounting device |
| CN113478431A (en) * | 2021-07-22 | 2021-10-08 | 哈尔滨电气动力装备有限公司 | Large-scale shielding motor thrust disc nut mounting and locking process |
| CN113894731A (en) * | 2021-10-10 | 2022-01-07 | 中国航发沈阳发动机研究所 | Deep shaft cavity compression nut screwing force limiting tool |
| CN113878328A (en) * | 2021-11-10 | 2022-01-04 | 中国航发南方工业有限公司 | Flow guide disc assembling device and method |
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Address after: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Applicant after: China Hangfa commercial aviation engine limited liability company Address before: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Applicant before: AVIC Commercial Aircraft Engine Co.,Ltd. |
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