CN102980486B - Meshing clearance measuring device for bevel gear pair of central transmission casing of plane under loading - Google Patents
Meshing clearance measuring device for bevel gear pair of central transmission casing of plane under loading Download PDFInfo
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- CN102980486B CN102980486B CN201210529909.7A CN201210529909A CN102980486B CN 102980486 B CN102980486 B CN 102980486B CN 201210529909 A CN201210529909 A CN 201210529909A CN 102980486 B CN102980486 B CN 102980486B
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Abstract
The invention discloses a meshing clearance measuring device for a bevel gear pair of a central transmission casing of a plane under loading. The meshing clearance measuring device mainly comprises a first measurer and a second measurer, wherein the first measurer is mounted on the casing, perpendicular to an end face direction of a driving bevel gear, and axially actuates the driving bevel gear; the second measurer is mounted on the casing, perpendicular to an end face direction of a driven bevel gear, and axially actuates the driven bevel gear; the first measurer and the second measurer both comprise housing frames, rod shafts capable of moving locally and axially relative to the housing frames and incapable of rotating, gear clamping mechanisms, axial inward pressing mechanisms, and axial outward pulling mechanisms; the gear clamping mechanisms are fixedly mounted on the rod shafts; the axial inward pressing mechanisms and the axial outward pulling mechanisms consist of springs, shaft sleeves fixed with the housing frames and spring seats for driving the gear clamping mechanisms to move axially; the rod shafts are sleeved with the springs; and nuts, the springs and the spring seats for forming the axial inward pressing mechanisms and the axial outward pulling mechanisms are arranged in opposite directions. The meshing clearance measuring device solves the problem that the meshing clearance measuring device for the bevel gears in the prior art cannot detect a meshing clearance under the loading.
Description
Technical field
The present invention relates to aircraft central transmission casing gear drive assembling measuring technique, particularly relate to and detect bevel gear pair in central transmission casing at the device by the back lash under rated load power.
Background technology
Gear drive is a kind of type of belt drive indispensable in mechanical drive, and the back lash of gear not only has influence on mechanically operated stationarity, but also have influence on the stability of control system, excesssive gap can cause control system produce jitter phenomenon and reduce serviceable life, therefore, important gear drive all needed the back lash of detection of gear transmission before coming into operation.It is all pass through measurement mechanism that the back lash of prior art is detected, in gear pair one gear is fixed, then rotate another gear, the back lash value of gear driving pair is converted into the angle of rotation angle value of moving gear, the angle of rotation angle value according to gear measures gear driving pair back lash.Aircraft central transmission casing is the very important gear train of aircraft, part in central transmission casing bears down very large compressive load in working order and draws load, bevel gear drive pair as central transmission casing vitals bears same load, differ greatly under the secondary back lash under pulling force and pressure effect of bevel gear drive and off working state, by the back lash that off working state is measured, correctly can not reflect the duty of bevel gear drive pair, therefore correctly detect that the back lash under bevel gear drive subtask state is very important.But adopting the gear drive back lash pick-up unit of prior art, is cannot measure bevel gear drive pair in compressive load and the back lash value under drawing load.Therefore, production practices are badly in need of providing a kind of device that can detect back lash under central transmission casing bevel gear pair load.
Summary of the invention
For present situation and the deficiency of existing gear driving pair back lash measurement mechanism, object of the present invention aims to provide a kind of flexible to operation, be easy to back lash measurement mechanism under the aircraft central transmission casing bevel gear pair load grasped, the problem that cannot detect back lash under load existed with the gear driving pair back lash measurement mechanism solving prior art.
Back lash measurement mechanism under aircraft central transmission casing bevel gear pair load provided by the invention, its structure is arranged on axial start on casing in the first measuring appliance of drive bevel gear and axial start in the second measuring appliance of driven wheel of differential primarily of comprising perpendicular to gear face direction, the formation of the first measuring appliance and the second measuring appliance comprises cage respectively, localized axial non-rotatable bar axle can be moved relative to cage, gear clamping device, internal axial pressure mechanism and axially outer drawing mechanism, described gear clamping device is fixedly mounted on bar axle, described internal axial pressure mechanism and axially outer drawing mechanism are by the spring be nested with outside bar axle, the axle sleeve fixed with housing, be arranged on by screw thread pair the nut that axle sleeve acts on spring one end and act on the spring other end and promote the spring base that gear clamping device moves axially and form, form the nut of internal axial pressure mechanism and axial outer drawing mechanism, spring is contrary with spring base setting direction, shape mated gear clamping device is exerted pressure or is executed and draws effect.Preferably one of gear clamping device of the first measuring appliance and the second measuring appliance is designed to resislient gear clamping device.
In order to solve technical matters to be solved by this invention better, the present invention also can take following technical measures further on the basis of technique scheme.Following every technical measures can be taked separately, also may be combined with and take, take even in the lump.
In technique scheme, for the ease of being determined to be applied to the compressive load of bevel gear drive pair by measuring spring decrement or drawing load, the first measuring appliance and the second measuring appliance are designed with the latch being used for fixing axle sleeve and bar axle relative position.The axle sleeve of formation internal axial pressure mechanism and axially outer drawing mechanism is designed with the groove of measuring spring decrement.Described latch acts on spring at nut to carry out must extracting in decrement adjustment process, inserts, sleeve and bar axle are fixed together before measurement and after adjustment.
In technique scheme, one of bar axle forming the first measuring appliance and the second measuring appliance is fixedly installed the dial framework installing and measuring table, design instruction groove on dial framework.
In technique scheme, in order to prevent spring from rotating in nut rotation course of exerting pressure, connect with spring action preferably by spring base in the internal axial pressure mechanism of formation first measuring appliance, the second measuring appliance and the nut of axial outer drawing mechanism.
In technique scheme, in order to simplification device structure, be preferably at the axle sleeve of the internal axial pressure mechanism of formation first measuring appliance, the second measuring appliance and the axle sleeve of axial outer drawing mechanism the same sleeve be fixed in cage.
In technique scheme, back lash measurement mechanism one-piece construction is preferably designed to, and the first measuring appliance is vertical setting, and the second measuring appliance is for being horizontally disposed with, and the cage forming the second measuring appliance is placed on ground by support.
In technique scheme, preferably the gear clamping device of the first measuring appliance is designed to resislient gear clamping device, its structure can draw component by being fixedly mounted on outside first on the first bar axle, fastening screw nut (22) formation acting in first on drive bevel gear cylinder inboard wall step surface in the first bar axle upper surface and press component and be arranged on by screw thread pair on the first bar axle can be nested with axially slidably, draw component for having flexible thin-wall wimble barrel outside described first, the large end outer rim of thin-wall wimble barrel and drive bevel gear cylinder inboard wall are interference fit, in described first, pressure member designs has telescopic pipe, the end-acted end face of pressing component telescopic pipe in first of described fastening screw nut, realize drive bevel gear resilient clamp by rotating fastening screw nut.
In technique scheme, the spring base forming the first measuring appliance internal axial pressure mechanism and axial outer drawing mechanism is be positioned at the spring seat structure on the second pressure component telescopic pipe.
In technique scheme, preferably the gear clamping device of the second measuring appliance is designed to rigid gear clamping device, by be arranged on the second bar axle upper surface and driven wheel of differential the inner match second outside draw component, by fixed pin be fixedly mounted on keeper on the second bar axle and by screw thread pair be placed in that keeper upper surface and driven wheel of differential outer end match second in press component to form, realize clamping driven wheel of differential rigidity by rotating pressure component in second, described keeper is connected with driven wheel of differential by key connecting pair, connect with the second cage by non-rotatable pin draw bail can be moved axially.
In technique scheme, carry out load adjustment for the ease of rotating nut, preferably the second cage of formation second measuring appliance is designed to the wide open cage in two sides.
The present invention also takes some other technical measures.
Under aircraft central transmission casing bevel gear pair load provided by the invention, back lash measurement mechanism is compared with the gear backlash measuring tool of prior art, has following very outstanding technical characterstic and effect:
1, back lash of the present invention measurement mechanism, structurally simulate the duty of aircraft central transmission casing bevel gear pair, pressure and pulling force can be applied to drive bevel gear and driven wheel of differential simultaneously, can measure exactly bevel gear pair in working order under back lash, for the duty correctly evaluating aircraft central transmission casing bevel gear pair provides foundation.
2, load simulated structure is simple.Back lash of the present invention measurement mechanism, be by by the spring be nested with outside bar axle, the axle sleeve fixed with housing, to be arranged on internal axial pressure mechanism that the spring base of exerting pressure nut and axial limiting that axle sleeve acts on spring one end forms and axial outer drawing mechanism by screw thread pair, realize applying compressive load to transmission casing bevel gear pair or drawing load, by rotating the size of the decrement adjustment imposed load of nut adjustment spring of exerting pressure, load simulated structure is simple.
3, apply specified compressive load or draw load operation simple.Measurement mechanism of the present invention, its internal axial pressure mechanism and axially outer drawing mechanism all produce acting force with reacting force by spring-compressed and realize applying pulling force and pressure to gear pair between gear pair and casing, to adjust the size of imposed load by exert pressure decrement that nut adjusts spring of rotation.And the nut of exerting pressure forming internal axial pressure mechanism and axial outer drawing mechanism is designed with the groove of measuring spring compression displacement amount, the decrement of spring can be known relative to the distance of benchmark by measurement groove, and then the load putting on central transmission casing bevel gear pair can be known, easy to operate.
4, reasonable in design.The drive bevel gear cylindrical shell size of central transmission casing bevel gear pair is large and barrel wall is thin, and the clamping device of drive bevel gear is designed to resislient gear clamping device by the present invention, fastening with tensioner component location, solves the problem that force is difficult.Axial start is equipped with stop pin 16 and is rotated to limit engaged wheel on the second measuring appliance of driven wheel of differential, drive bevel gear is rotated during measurement, gap width is converted into the rotational value of the dial framework 18 on the second measuring appliance, directly can plays table and detect, the gap width recorded is reliable, accurate.
The present invention is improvement to the gear pair back lash measurement mechanism of prior art and development, for production practices provide a kind of flexible to operation, grasp the gear pair back lash measuring tool that difficulty is little, the gear pair back lash measurement mechanism solving prior art cannot loaded load, gear location is difficult, the problems such as clearance measurement difficulty is large.
Accompanying drawing explanation
Accompanying drawing 1 is one-piece construction schematic diagram of the present invention.
Accompanying drawing 2 is that axial start of the present invention is in the structural representation of the second measuring appliance of driven wheel of differential.
Accompanying drawing 3 be in accompanying drawing 2 A-A to sectional structure schematic diagram.
Accompanying drawing 4 be in accompanying drawing 2 B to partial enlargement structural representation.
Accompanying drawing 5 is that axial start of the present invention is in the structural representation of the first measuring appliance of drive bevel gear.
In above-mentioned accompanying drawing, the object that each shown by reference numeral indicates is: I-axial start is in the first measuring appliance of drive bevel gear; II-drive bevel gear; III-central transmission casing; IV-driven wheel of differential; V-axial start is in the second measuring appliance of driven wheel of differential; 1-erection bolt; 2-second cage; 3-second exerts pressure nut; 4-second latch; 5-second executes and draws spring; Component is drawn outside 6-second; 7-keeper; Pressure component in 8-second; 9-fixed pin; 10-second exerts pressure spring; 11-base; 12-second axle sleeve; 13-second executes and draws nut; 14-second bar axle; 15-second spring base nut; 16-lining; 17-stop pin; 18-dial framework; 19-first executes and draws spring; 20-first latch; 21-first exerts pressure spring; 22-fastening screw nut; 23-first spring base nut; 24-first spring base; 25-first executes and draws nut; 26-first axle sleeve; 27-first exerts pressure nut; 28-first exerts pressure clamping components; 29-first cage; 30-first bar axle; Component is drawn outside 31-first.
Embodiment
Illustrate below in conjunction with accompanying drawing and provide embodiments of the invention, and by embodiment, the present invention is further described specifically, so that personnel's the understanding of the present invention of art.Be necessary at this it is emphasized that; embodiment is just for the present invention will be further described; limiting the scope of the invention can not be interpreted as; affiliated art skilled person; according to improvement and adjustment that the invention described above content makes non-intrinsically safe to the present invention, still protection scope of the present invention should be belonged to.
Embodiment 1
The device for back lash under survey aircraft central transmission casing bevel gear pair load that the present embodiment provides, its structure as shown in Figure 1, form in the second measuring appliance V of driven wheel of differential IV in the first measuring appliance I of drive bevel gear II and axial start by being arranged on axial start on central transmission casing III perpendicular to gear face direction, the first measuring appliance I and the second measuring appliance V are fixedly mounted on central transmission casing by attachment bolt.
The structure of described first measuring appliance as shown in Figure 5, by the first cage 9, localized axial can move non-rotatable first bar axle 30, drive bevel gear elastic clamping mechanism, the first internal axial pressure mechanism, first axially outer drawing mechanism and be fixedly installed on the first bar axle 30 outer end and form for the dial framework 18 installing and measuring table relative to the first cage.Described resislient gear clamping device draws component 31 by being fixedly mounted on outside first on the first bar axle 30, can be nested with axially slidably to act in the first bar axle upper surface in first on drive bevel gear cylinder inboard wall step surface presses component 28 and the fastening screw nut 22 be arranged on by screw thread pair on the first bar axle to form, draw component 31 for having flexible thin-wall wimble barrel outside described first, the large end outer rim of thin-wall wimble barrel and drive bevel gear cylinder inboard wall are interference fit, in described first, pressure component 28 is designed with long sleeve pipe, the end-acted end face of pressing component 28 telescopic pipe in first of described fastening screw nut 22, realize drive bevel gear resilient clamp by rotating fastening screw nut.Described first internal axial pressure mechanism by be nested with to press in first outside component 28 telescopic pipe first exert pressure spring 21, with the first cage fix first exert pressure axle sleeve, to be arranged on by screw thread pair the first axle sleeve acts on first exert pressure first of spring one end exert pressure nut 27 and act on first exert pressure that the spring other end promotes that gear clamping device inwardly moves axially be positioned at and first press the first spring base on component 28 telescopic pipe to form.Described first axially outer drawing mechanism by be nested with first in, press outside component 28 telescopic pipe first to execute draw spring 19, with the first cage fix first execute pulling shaft cover, be arranged on by screw thread pair first execute pulling shaft overlap act on first execute draw first of spring one end to execute to draw nut 25 and act on first execute draw spring 19 other end to promote spring base nut 23 that gear clamping device outwards moves axially is formed, spring base nut 23 is arranged on first by screw thread pair and interiorly presses on component 28 telescopic pipe.Form first of internal axial pressure mechanism to exert pressure axle sleeve and to form first of axially outer drawing mechanism axle sleeve of exerting pressure be same axle sleeve 26.First exerts pressure in axle sleeve and first is pressed between component 28 telescopic pipe and is designed with the pin hole be fixed together by latch 20.Form first of the first internal axial pressure mechanism to exert pressure axle sleeve, nut, spring and spring base and formation first axially first the executing and draw nut, spring and spring base of outer drawing mechanism, setting direction on the contrary, exert pressure or execute and draw effect by shape mated gear clamping device.The outer end of the first bar axle is provided with dial framework 18, and dial framework is designed with measurement groove.
The structure of described second measuring appliance as shown in accompanying drawing 2,3,4, by the second cage 2, support the second cage 2 support 11, relative to the second cage can localized axial move non-rotatable second bar axle 14, driven wheel of differential rigidity clamping device, the second internal axial pressure mechanism and second axially outer drawing mechanism form.Described rigid gear clamping device by drawing component 6 outside be arranged on that the second bar axle (14) upper surface and driven wheel of differential the inner match second, be fixedly mounted on keeper 7 on the second bar axle 14 by fixed pin 9 and be placed in that keeper upper surface and driven wheel of differential outer end match by screw thread pair second interiorly press component 8 to form, described keeper 7 is connected with driven wheel of differential by splined pair, connecting with the second cage 2 by non-rotatable register pin draw bail can be moved axially, realizing clamping driven wheel of differential rigidity by rotating pressure component 8 in second.Described pin draw bail is as shown in accompanying drawing 2 and accompanying drawing 4, and by being arranged on the lining 16 being designed with bar shaped pin hole in the second housing 2 mounting hole, the pin hole be positioned on pressure component part 8, the pin 17 that matches with the bar hole on lining and pin hole on pressure component 8 form.Described second internal axial pressure mechanism by be nested with outside the second bar axle second exert pressure spring 10, with the second cage fix second exert pressure axle sleeve 12, to be arranged on by screw thread pair and the second axle sleeve to act on the second second of spring one end of exerting pressure and to exert pressure nut 3 and act on the second spring other end of exerting pressure and promote gear clamping device and inwardly move axially the second spring base and form.Described second axially outer drawing mechanism by be nested with outside the second bar axle second execute draw spring 5, and the second cage fix second execute pulling shaft cover, be arranged on by screw thread pair second execute pulling shaft overlap act on second execute draw second of spring one end to execute to draw nut 13 and act on second execute draw the spring other end to promote the second spring base nut 15 that gear clamping device outwards moves axially is formed, spring base nut 15 is arranged on the second bar axle 14 by screw thread pair.Form second of internal axial pressure mechanism to exert pressure axle sleeve and to form second of axially outer drawing mechanism axle sleeve of exerting pressure be that same axle sleeve 12, the second is exerted pressure between axle sleeve and the second bar axle and is designed with the pin hole be fixed together by latch 20.Form second of the second internal axial pressure mechanism to exert pressure axle sleeve, nut, spring and spring base and formation second axially second the executing and draw nut, spring and spring base of outer drawing mechanism, setting direction on the contrary, exert pressure or execute and draw effect by shape mated gear clamping device.
The process adopting device of the present invention to measure back lash under aircraft central transmission casing bevel gear pair load is as follows:
Before measurement, first fix central transmission casing, the circlip of the low pressure bevel gear on engaged wheel and low pressure bevel gear set are taken off, the second measuring appliance is penetrated from high-voltage drive axle, and the second cage 2 bolt 1 is fastened on casing outside.Drawing component 6 to remove outside second of the second measuring appliance, keeper 7 being arranged on the cover increment of engaged wheel, rotating and screwing the second outer draw piece 6 and the second interior pressure component 8, realizing clamping driven wheel of differential rigidity.Inserted by second latch 4 in the pin sky on second sleeve 12 and the second bar axle 14, inspection marking size and scribe line position, insert stop pin 16 pilot hole of keeper 7 from lining 17.On the first measuring appliance, in first, press component 28 to be installed in drive bevel gear, the first cage 29 is arranged on casing, rotation fastening screw nut 22 draws component 31 tensioner in active conical tooth outside making first, realizes active conical tooth resilient clamp.Measuring tool is installed.
During measurement, latch 4 on second measuring appliance is extracted, pulling the second nut 3 of exerting pressure makes nut small end flush with the groove 5 on the second axle sleeve 12, second exerts pressure spring 10 also in the raw, continue to pull nut 3, spring 10 by compression applied thrust is given the second applicator member 8 and is finally applied on follower gear.Load is acted on nut 3, axle sleeve 12, shell 2 finally acting on casing shell by the other end of spring 10.Pulling nut makes spring continue compression, and when nut 3 small end is between groove 1,2, the pressure acted on follower gear reaches 190N ~ 200N.Above-mentioned identical operation is repeated to the first measuring appliance being positioned at driving gear end, active conical tooth gear is applied to the pressure of 190N ~ 200N.Rotating the first bar axle 30 end cap with spanner drives driving wheel to rotate, and the scribe line position of calibrating rack 18 beats table readout value, is central transmission casing bevel gear pair and is bearing the back lash value under compressive load.
The nut 3 pulled on driven wheel of differential end second measuring appliance makes its small end get back to outside groove 5, and spring 10 is got back to state of nature and no longer applied pressure.Execute draw nut 13 that nut small end is flushed with the groove 6 on axle sleeve 12 with pulling second, second executes and draws spring 5 also in the raw, continue to pull nut 13, spring 5 nut 15, the second bar axle 14, second simultaneously applied a force to by compression as spring base execute draw component 6 and the final pulling force that applies on follower gear.The other end compression force of spring 5 also finally acts on casing shell in nut 13, axle sleeve 12, second cage 2.Pulling nut 13 makes spring 5 continue compression, and when nut 13 small end is between groove 3,4, the pulling force acted on follower gear reaches 300N ~ 400N.Aforesaid operations is repeated, to drive bevel gear imposed load power to the first measuring appliance being positioned at drive bevel gear end.Rotating the first bar axle 30 end cap with spanner drives driving wheel to rotate, and the scribe line position of calibrating rack 18 beats table readout value, and this numerical value is central transmission casing bevel gear pair and is holding the back lash value under tensional load.
Claims (10)
1. back lash measurement mechanism under an aircraft central transmission casing bevel gear pair load, it is characterized in that comprising and be arranged on the upper axial start of casing (III) in first measuring appliance (I) of drive bevel gear (II) and axial start in second measuring appliance (V) of driven wheel of differential (IV) perpendicular to gear face direction, the formation of the first measuring appliance and the second measuring appliance comprises cage (9 respectively, 2), localized axial non-rotatable bar axle (30 can be moved relative to cage, 14), gear clamping device, internal axial pressure mechanism and axially outer drawing mechanism, described gear clamping device is fixedly mounted on bar axle, and internal axial pressure mechanism and axially outer drawing mechanism are by the spring (21 be nested with outside bar axle, 19, 10, 5), the axle sleeve (26 fixed with housing, 12), the nut (27 axle sleeve acting on spring one end is arranged on by screw thread pair, 25, 3, 13) nut of internal axial pressure mechanism and axial outer drawing mechanism and act on the spring other end and promote the spring base that gear clamping device moves axially and form, is formed, spring is contrary with spring base setting direction, and shape mated gear clamping device is exerted pressure or executed and draws effect.
2. back lash measurement mechanism under aircraft central transmission casing bevel gear pair load according to claim 1, it is characterized in that the first measuring appliance and the second measuring appliance are designed with the latch (20,4) being used for fixing axle sleeve and bar axle relative position, the axle sleeve (26,12) of formation internal axial pressure mechanism and axially outer drawing mechanism is designed with the groove of measuring spring decrement.
3. back lash measurement mechanism under aircraft central transmission casing bevel gear pair load according to claim 1, one of bar axle that it is characterized in that formation first measuring appliance and the second measuring appliance is fixedly installed the dial framework (18) installing and measuring table, design instruction groove on dial framework.
4. back lash measurement mechanism under aircraft central transmission casing bevel gear pair load according to claim 1, it is characterized in that the internal axial pressure mechanism of formation first measuring appliance, the second measuring appliance nut and axially the nut of outer drawing mechanism all to be acted on spring (10,5,21,19) by spring base and connecting.
5. back lash measurement mechanism under aircraft central transmission casing bevel gear pair load according to claim 1, is characterized in that at the axle sleeve of the internal axial pressure mechanism of formation first measuring appliance, the second measuring appliance and the axle sleeve of axial outer drawing mechanism for being fixed on the same sleeve (26,12) in cage (29,2).
6. according to back lash measurement mechanism under the aircraft central transmission casing bevel gear pair load one of claim 1 to 5 Suo Shu, it is characterized in that the first measuring appliance forming back lash measurement mechanism is arranged for vertical, second measuring appliance is for being horizontally disposed with, and the second cage (2) forming the second measuring appliance is placed on ground by support (11).
7. according to back lash measurement mechanism under the aircraft central transmission casing bevel gear pair load one of claim 1 to 5 Suo Shu, it is characterized in that the gear clamping device of the first measuring appliance is resislient gear clamping device, component (31) is drawn by being fixedly mounted on outside first on the first bar axle (30), fastening screw nut (22) formation acting in first on drive bevel gear cylinder inboard wall step surface in the first bar axle upper surface and press component (28) and be arranged on by screw thread pair on the first bar axle can be nested with axially slidably, draw component (31) for having flexible thin-wall wimble barrel outside described first, the large end outer rim of thin-wall wimble barrel and drive bevel gear cylinder inboard wall are interference fit, in described first, pressure member designs has telescopic pipe, the end-acted end face of pressing component telescopic pipe in first of described fastening screw nut, realize drive bevel gear resilient clamp by rotating fastening screw nut.
8. back lash measurement mechanism under aircraft central transmission casing bevel gear pair load according to claim 6, is characterized in that the spring base of formation first measuring appliance internal axial pressure mechanism and axial outer drawing mechanism is for being positioned at the spring seat structure on the first pressure component (28) telescopic pipe.
9. according to back lash measurement mechanism under the aircraft central transmission casing bevel gear pair load one of claim 1 to 5 Suo Shu, it is characterized in that the gear clamping device of formation second measuring appliance is rigid gear clamping device, by be arranged on the second bar axle (14) upper surface and driven wheel of differential the inner match second outside draw component (6), by fixed pin (9) be fixedly mounted on keeper (7) on the second bar axle and by screw thread pair be placed in that keeper upper surface and driven wheel of differential outer end match second in press component (8) to form, realize clamping driven wheel of differential rigidity by rotating pressure component in second, described keeper is connected with driven wheel of differential by key connecting pair, connect with the second cage (2) by non-rotatable pin draw bail can be moved axially.
10. back lash measurement mechanism under aircraft central transmission casing bevel gear pair load according to claim 9, is characterized in that second cage (2) of formation second measuring appliance is for the wide open cage in two sides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210529909.7A CN102980486B (en) | 2012-12-11 | 2012-12-11 | Meshing clearance measuring device for bevel gear pair of central transmission casing of plane under loading |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210529909.7A CN102980486B (en) | 2012-12-11 | 2012-12-11 | Meshing clearance measuring device for bevel gear pair of central transmission casing of plane under loading |
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| CN102980486B true CN102980486B (en) | 2015-03-25 |
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| CN112484604B (en) * | 2020-11-17 | 2022-07-12 | 中国航发四川燃气涡轮研究院 | Device for checking meshing clearance of central transmission bevel gear |
| CN113154013A (en) * | 2021-05-11 | 2021-07-23 | 中国航发沈阳发动机研究所 | Torsion-dividing output power device for central transmission bevel gear of aircraft engine |
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