CN106813922A - Dynamic transmission error of gear measuring method and measurement apparatus - Google Patents

Dynamic transmission error of gear measuring method and measurement apparatus Download PDF

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Publication number
CN106813922A
CN106813922A CN201710036841.1A CN201710036841A CN106813922A CN 106813922 A CN106813922 A CN 106813922A CN 201710036841 A CN201710036841 A CN 201710036841A CN 106813922 A CN106813922 A CN 106813922A
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gear
transmission error
guide rail
measurement
measurement apparatus
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CN106813922B (en
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石照耀
舒赞辉
李睿
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Beijing University of Technology
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Beijing University of Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/02Gearings; Transmission mechanisms
    • G01M13/021Gearings

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  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The present invention relates to dynamic transmission error of gear measuring method and measurement apparatus, belong to gear-driven accuracy field of measuring technique.The development trend of gear static accuracy of the substitution based on gear geometry, kinematics achievement in research is gone to the gear dynamic precision based on nonlinear dynamic behavior achievement in research for the requirement of current gear measurement device, it is proposed that the measuring method and motion transmission error measuring means of a kind of dynamic transmission error of gear.By gear Quick clamping device, realize that the gear of different size specification is quick, high-precision replacing;Using precise mobile platform, the adjustment of precise control centre-to-centre spacing and facewidth directioin parameter;Gear real work system mode is simulated using Simulated System, the certainty of measurement and confidence level of motion transmission error is improved.Consider working gear load and lubricating condition, using the high accuracy circular grating acquisition master of non-fit, by the information of the Angle Position of gear, data processing is carried out than phase method using numeral, obtain dynamic transmission error of gear.

Description

Dynamic transmission error of gear measuring method and measurement apparatus
Technical field
The present invention relates to the measuring method and dynamic transmission error of gear measurement apparatus of a kind of dynamic transmission error of gear, category In transmission accuracy of gear pair e measurement technology, Precision Inspection and instrument, technical field of mechanical transmission.
Background technology
It is widely used in the gear of the transmission systems such as automobile, ship, wind-powered electricity generation, is modern industry, traffic, energy source and power transmission A kind of middle important driving member.The advantages of due to stable drive, accurate gearratio, efficiency high and long lifespan, gear drive is dynamic Key player is still play in power transmission, is a kind of most widely used machine driving.Due to by gear machining technology and detection Although the restriction of technology, China be gear manufacture and the big country that uses but be not that gear manufacture is made the country prosperous.Cause the important of this situation One of reason exactly cannot make comprehensive, objective, correct evaluation to the quality of the gear of production, so that for instructing processing life Produce.
Gear as modern automobile industry important drive disk assembly, be the main vibration source and noise source in car running process One of, its dynamic behavior and service behaviour has important influence to vehicle.Driving error affects gear drive process In speed and power change, be the main source of gear vibration and noise, be gear train vibration and noise main excitation Source, by the universal receiving of people and has thought.The vibration of gear has an effect on the failure mode of internal gear, for example:Gear Fracture, rippling and peeling, tooth face agglutination and tooth root crackle etc., but also the resonance of automobile other systems can be caused, than Such as brakes and steering, so as to have influence on the reliability of these systems and the security of vehicle.
Weigh gear meshing quality important indicator be gear-driven accuracy, and control the most important means of gear quality it One is the detection of gear-driven accuracy.Many detections and the experiment of industrial quarters have proven to:Vibration, noise and driving error have directly The contact for connecing, if not carrying out drive error testing, is difficult to that vibration and noise are studied and controlled.And current biography Dynamic error testing system is generally carried out under low speed, zero load, and preferable using transmission system as one, the system without vibration is entered Row test.And under high-speed working condition, current drive error testing system can't reach accurate test request.Major part detection Equipment only considered the static error under no-load condition, have ignored the dynamic error under loading condition, it is impossible to truly simulate gear Between actual working state, cause gear-driven accuracy test authenticity reduction.
For the problem that prior art is present, there is provided a kind of dynamic transmission error of gear measuring method and measurement apparatus, should Measurement apparatus can truly simulate actual working state between gear, and the measurement of motion transmission error is carried out under that loading condition, carry The high authenticity and reliability of gear-driven accuracy test.When hysteresis brake dynamic torque is zero, moreover it is possible to meet unloaded The measurement of static driving error between situation lower gear.
The content of the invention
In order to simulate gear real work system (environment) state, dynamic transmission error of gear is realized under that loading condition Measurement, the invention provides a kind of dynamic transmission error of gear measuring method and measurement apparatus, can simulate gear real work System (environment) state, carries out the measurement of dynamic transmission error of gear under that loading condition.
Dynamic transmission error of gear measuring method, under gear real work system (environment) of simulation, it is considered to gear work Load and lubricating condition, using the high accuracy circular grating acquisition master of non-fit, by the information of the Angle Position of gear, by numeral Data processing is carried out than phase method, the motion transmission error of gear is obtained.Dynamic transmission error of gear measuring method includes:1. adopt With the sensor (at least one) installed in motion transmission error measuring means front-end of spindle, using experimental modal analysis method, Obtain the intrinsic frequency and its each order harmonic frequency of motion transmission error measuring means;2. by changing motion transmission error measure The mechanical system structure of device, changes its intrinsic modal frequency and its harmonic frequency, approaches real work residing for detected gear The modal frequency of system (environment), makes the measurement of motion transmission error enter under real work system (environment) state of simulation OK;3. by Operating condition adjustment system, suitable measurement rotating speed, load and lubricating condition are set, it is to avoid resonance and lubrication are to measurement The interference of result;4. the angle position information of active and passive gear is obtained using Circular gratings angular transducers, using digital phase comparing method and Digital Signal Processing, the gear that real work system (environment) state of simulation is obtained according to driving error Computing Principle is moved State driving error.
Dynamic transmission error of gear measurement apparatus structure is as shown in figure 1, the measurement apparatus are by gear chucking device (7), essence Close rotary axis system (8), precise mobile platform (18), motor (31), shaft coupling (32), torque sensor (33) and magnetic powder brake (34) constitute.Motor (31) is acted in the positioning and guiding of end face seam, by seam anchor ring and precise mobile platform (8) Motor installing hole coordinates, by the way of mode connects for screw, on precise mobile platform.The power of motor (31) is through shaft coupling (32) precision rotating shafting (8) is transferred to, by shaft coupling (32) one end and motor (31) phase by way of bolt drives swelling Even, one end is connected with precision rotating shafting (8).The magnetic powder brake (34) of shaft hollow formula and the output shaft of torque sensor (33) It is direct-connected, and magnetic powder brake (34) is oriented to by the short cone of seam, the mode that end face attachment screw is compressed is connected in accurate mobile flat On platform (18).Load is exported through torque sensor (33) flange, is connected with precision rotating shafting (8) using shaft coupling (32), is joined Axle device (32) uses swelling principle with the attachment of precision rotating shafting.Using precision rotating shafting (8) front end short cone with Gear chucking device (7) coordinates, and ensures installation accuracy by the way of end face laminating, using soket head cap screw connection method by tooth Wheel chucking device (7) is connected with precision rotating shafting (8).Motor (31) is synchronous torque motor, can be with precise control moment of torsion Output, coordinates with torque sensor (33), constitutes moment of torsion closed loop, it is ensured that the stabilization loaded in measurement process, it is to avoid negative carrier The precision of dynamic influence testing result.Motor (31) by driver and motion control unit component movement control system, by turning round The mode of square closed loop, Angle Position closed loop and speed closed loop, is precisely controlled rotating speed and moment of torsion in measurement process, and according to measurement work Condition real-time regulation lubricating condition.Rotational speed regulation is carried out, any detection can be met and required.
The structure of the precise mobile platform (18) of dynamic transmission error of gear measurement apparatus is as shown in Fig. 2 accurate mobile flat Platform (18) is by drive end guide rail lock (19), drive end guide rail (20), measurement apparatus base (21), drive end screw block (22), master Moved end leading screw (23), drive end casing (24), grating long (25), Partner casing (26), Partner guide rail lock (27), Partner Leading screw (28), Partner screw block (29), handwheel (30) and Partner guide rail (35) composition.Drive end guide rail (20) is by screw It is fixed to be arranged on measurement apparatus base (21) y-axis direction with the mode that guide rail briquetting is compressed;Partner guide rail (35) is by screw It is fixed to be arranged on measurement apparatus base (21) x-axis direction with the mode that guide rail briquetting is compressed.Drive end casing (24) is by guide rail Sliding block is arranged on drive end guide rail (20), and drive end guide rail lock (19) is fixed by screws on drive end casing (24).When When drive end casing (24) is moved to specified location along drive end guide rail (20), (19) is locked by drive end guide rail and locks drive end The movement of casing (24), it is ensured that the stability of measurement process center distance change, it is to avoid the interference that centre-to-centre spacing change at random is brought.It is main Moved end screw block (22) is fixed by screws in measurement apparatus base (21) y directions, and drive end leading screw (23) is directly installed on master On moved end screw block (22).Partner casing (26) is arranged on Partner guide rail (35) by guide rail slide block, drive end guide rail Lock (19) is fixed by screws on Partner casing (26).When Partner casing (26) is moved to finger along Partner guide rail (35) When positioning is put, the movement that (27) lock Partner casing (26) is locked by Partner guide rail, it is to avoid along facewidth side in measurement process To the interference that brings of change at random.Partner screw block (29) is fixed by screws in measurement apparatus base (21) x directions, quilt Moved end leading screw (28) is directly installed on drive end screw block (22), end of the handwheel (30) installed in Partner leading screw (28). Grating (25) long is fixed by screws on measurement apparatus base (21), with drive end guide rail (20) keeping parallelism, monitoring center Away from change.Precise mobile platform can either in the x-direction be moved and moved in the y-direction, it is ensured that different size is met in measurement process Requirement of the gear in terms of away from center and gear.
The structure of the precision rotating shafting (8) of dynamic transmission error of gear measurement apparatus is as shown in figure 3, precision rotating shafting (8) by main shaft (9), bearing cap (10), locking nut (11), rear bearing (12), fore bearing (36), main shaft outer barrel (13), bearing Liner (14), bearing outer lining (15), Circular gratings (16) and main shaft end cap (17) composition.Main shaft (9) and all of shafting are all installed In the inside of main shaft outer barrel (13), form one and complete independent shafting unit.Main shaft (9) foremost by screw fasten Mode is equipped with Circular gratings (16), and main shaft end cap (17) is arranged on the front end of main shaft outer barrel (13) by way of screw is fastened, prevents Only external dust, greasy dirt etc. invade shafting, the normal work of interference Circular gratings (16).The front end of fore bearing (36) inner ring leans against master On the front end boss of axle (9), the front end of outer ring is leaned against on the front end boss of main shaft outer barrel (13), outside bearing liner (14) and bearing Lining (15) is respectively held against the rear end of fore bearing (36) inner ring and the rear end of fore bearing (36) outer ring.The Internal and external cycle of bearing (12) divides afterwards Bearing liner (14) and bearing outer lining (15) are not propped up, and altering for bearing inner race and bearing liner (14) is pinned with locking nut (11) Dynamic, bearing cap (10) is pressed into by screw from main shaft outer barrel (13) rear end, pins the axial direction of bearing outer ring and bearing outer lining (15) Play.
The structure of the gear chucking device (7) of dynamic transmission error of gear measurement apparatus is as shown in figure 4, gear chucking device (7) it is made up of the short axis of cone (4), gear expansion set (6) and gear (5).The short axis of cone (4) is engaged by axle with gear (5) with hole, tooth In the short axis of cone (4), end passes through gear expansion set (6) swelling to wheel (5).The advantage of this device is to work as gear set specifications Size need not redesign precision bearing system and need to only redesign the short axis of cone (4) when different, and the structure of short taper hole is convenient to be adjusted The installation accuracy of whole gear, the gear expansion set (6) of Quick fastening improves the speed of gear installation, improves the facility of operation Property.
The structure of the gear expansion set (6) of dynamic transmission error of gear measurement apparatus is as shown in figure 5, gear expansion set (6) is by interior Expansion set (1), outer expansion set (2) and screw (3) composition, outer expansion set (2) are maintained at outside, end of the inner expension cap (1) from outer expansion set (2) Insertion, is formed a whole inside and outside expansion set by screw (3).The characteristics of expansion set be all be carved with inside and outside expansion set it is small Groove, fully ensures that the elasticity of inside and outside expansion set, cone match is used between inner expension cap (1) and outer expansion set (2), when tightening or unclamp spiral shell During nail, the swelling amount of expansion set is adjusted.The taper of inside and outside expansion set and the length of expansion set determine the swelling amount of expansion set, and swelling amount is bigger The moment of torsion that can be born is bigger.
Dynamic transmission error of gear measuring method is to be installed on dynamic transmission error of gear by gear Quick clamping device In measurement apparatus, under the actual working state of simulation, the main Angle Position by axle is obtained using the high accuracy circular grating of non-fit Information, data processing is carried out than phase method by numeral, obtain the motion transmission error of gear pair.Its implementation is:① To be installed in dynamic transmission error of gear measurement apparatus by gear Quick clamping device;2. missed using installed in motion transmission The sensor (at least one) of difference measuring device front-end of spindle, using experimental modal analysis method, obtains motion transmission error and surveys Measure the intrinsic frequency and its each order harmonic frequency of device;3. by changing the mechanical system knot of motion transmission error measuring means Structure, changes its intrinsic modal frequency and its harmonic frequency, approaches the mode of real work system (environment) residing for detected gear Frequency, make the measurement of motion transmission error is carried out under the real working condition of simulation;4. by Operating condition adjustment system, setting is suitable Measurement rotating speed and lubricating condition, it is to avoid the interference of resonance and lubrication to measurement result;5. obtained using Circular gratings angular transducer The change of the Angle Position of main driven axle, using digital phase comparing method and Digital Signal Processing, according to driving error Computing Principle Obtain the dynamic transmission error of gear under the conditions of simulation real working condition.
Using dynamic transmission error of gear measurement apparatus, using dynamic transmission error of gear measuring method, prototype gear is moved The implementation of state driving error is as follows:
1), gear is installed, and 1. the inner conical surface using the short axis of cone (4) and the cooperation of the conical surface of precision rotating shafting (8), pass through The mode of screw adjustment adjusts shafting circular runout and end face run-out, the installation accuracy of the short axis of cone (4) is detected using amesdial, directly Meet to shafting bounce precision and require;2. gear is installed on gear chucking device (7) using gear expansion set (6), by twisting Mode that is tight or unclamping screw adjusts swelling, until swelling amount meets bearing requirements;
2), the distance in adjustment centre-to-centre spacing and facewidth direction, leading screw is driven using handwheel handwheel (30), and centre-to-centre spacing is adjusted respectively With the size in gear direction, using Grating examinations centre-to-centre spacing long until meeting measurement request, then locked using drive end guide rail (19) locking drive end and using Partner guide rail lock (27) locking Partner, it is ensured that measurement process master, will not be because of negative by end Load is moved, and influences certainty of measurement;
3), using the sensor (at least one) in dynamic transmission error of gear measurement apparatus, by mode point Analysis technology obtains the modal frequency of dynamic transmission error of gear measurement apparatus.By changing dynamic transmission error of gear measurement apparatus Mechanical system structure, change its intrinsic modal frequency and its harmonic frequency, approach real work system residing for detected gear Modal frequency;
4) dynamic transmission error of gear measurement apparatus, are opened, master is input into as requested, is joined by gear parameter and operating condition Number;By Operating condition adjustment system, suitable measurement rotating speed and the lubricating condition of setting, by moment of torsion closed loop, Angle Position closed loop and speed The mode of closed loop is spent, rotating speed and moment of torsion in measurement process is precisely controlled, it is to avoid the interference of resonance and lubrication to measurement result;
5) after relevant parameters such as sample frequency, sampling time, sample mode etc., are set in data acquisition software, utilize Circular gratings angular transducer obtains the change information of the Angle Position of main driven axle;
6), using digital phase comparing method and Digital Signal Processing, simulation is obtained according to driving error Computing Principle true Dynamic transmission error of gear under working condition simultaneously generates measurement report.
Current drive error testing system is generally carried out under low speed, zero load, preferable using transmission system as one, System without vibration is tested.Most of testing equipment only considered the static error under no-load condition, have ignored load Under the conditions of dynamic error, it is impossible to actual working state, the authenticity for causing gear-driven accuracy to be tested between true simulation gear Reduce.The present invention provides a kind of dynamic transmission error of gear measuring method and measurement apparatus, can truly simulate actual work between gear Make state, the measurement of motion transmission error is carried out under that loading condition, its remarkable advantage is:
1) operating mode is true, possesses modal frequency detecting system and structure frequency adjusting apparatus, can truly simulate gear reality Operating mode, it is true that measurement result is more credible;
2) dimensions of gear measurement is more, and measurement apparatus have precise mobile platform, can meet different size gear Measurement request, the adjustment of energy precise control centre-to-centre spacing;
3) precisely controllable, measurement process moment of torsion closed-loop control is loaded, the load condition of measurement process can be precisely controlled, it is to avoid Interference of the load fluctuation to measurement result;
4) strong antijamming capability, gathers angular displacement information, it is to avoid interference of the environment to sampling process using high accuracy grating;
5) gear is installed quick and high precision, using accurate expansion set rapid-mounted gear, it is ensured that the precision that gear is installed with Quickly, the requirement of quick measurement is met
6) precision bearing system Universal joint, gear chucking device use short cone match, Universal joint, high precision and be easy to system Make
7) precision bearing system returns carrying greatly and rotating accuracy is high, and using high-accuracy loading ability of bearing, whole precision rotating shafting is only A subsystem is found into, processing and assembly precision are adjustable controllable.
Brief description of the drawings
Fig. 1 is dynamic transmission error of gear measurement apparatus.
Fig. 2 is the precise mobile platform of measurement apparatus.
Fig. 3 is the precision rotating shafting of measurement apparatus.
Fig. 4 is the gear chucking device of measurement apparatus.
Fig. 5 is the gear expansion set of measurement apparatus.
Fig. 6 is dynamic transmission error of gear measurement procedure.
Fig. 7 is that gear dynamic is driven error signal handling process.
Fig. 8 is dynamic transmission error of gear curve.
Marked in figure:1- inner expension caps, the outer expansion sets of 2-, 3- screws, the short axis of cone of 4-, 5- gears, 6- gear expansion sets, 7- gears dress Card device, 8- precision rotating shaftings, 9- main shafts, 10- bearing caps, 11- locking nuts, bearing after 12-, 13- main shaft outer barrels, 14- Bearing liner, 15- bearing outer linings, 16- Circular gratings, 17- main shaft end caps, 18- precise mobile platforms, 19, guide rail lock, 20- is actively End guide rail, 21- measurement apparatus bases, 22- drive end screw blocks, 23- drive end leading screws, 24- drive end casings, 25- gratings long, 26- Partner casings, 27- Partner guide rail lock, 28- Partner leading screws, 29- Partner screw blocks, 30- handwheels, 31- motors, 32- shaft couplings, 33- torque sensors, 34- magnetic powder brakes, 35- Partner guide rails, 36- fore bearings.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.But this should not be interpreted as The scope of the above-mentioned theme of the present invention is only limitted to following implementation method, and all technologies realized based on present invention belong to this The scope of invention.
Motion transmission error measure flow as shown in Figure 4, embodiment party's step of dynamic transmission error of gear measurement is as follows:
1), gear is installed, and 1. the inner conical surface using the short axis of cone (4) and the cooperation of the conical surface of precision rotating shafting (8), pass through The mode of screw adjustment adjusts shafting circular runout and end face run-out, the installation accuracy of the short axis of cone (4) is detected using amesdial, directly Meet to shafting bounce precision and require;2. gear is installed on gear chucking device (7) using gear expansion set (6), by twisting Mode that is tight or unclamping screw adjusts swelling, until swelling amount meets bearing requirements;
2), adjustment centre-to-centre spacing (152.386mm) and the distance in the facewidth (30mm) direction, silk is driven using handwheel handwheel (30) Thick stick, adjusts the size of centre-to-centre spacing and gear direction respectively, using Grating examinations centre-to-centre spacing long until meeting measurement request, Ran Houli (19) are locked with drive end guide rail lock drive end and using Partner guide rail lock (27) locking Partner, it is ensured that measurement process master, Will not be moved because of load by end, influence certainty of measurement;
3), using the sensor (at least one) in dynamic transmission error of gear measurement apparatus, by mode point Analysis technology obtains the modal frequency of dynamic transmission error of gear measurement apparatus.By changing dynamic transmission error of gear measurement apparatus Mechanical system structure, change its intrinsic modal frequency and its harmonic frequency, approach real work system residing for detected gear Modal frequency;
4) dynamic transmission error of gear measurement apparatus, are opened, master is input into as requested, is joined by gear parameter and operating condition Number;By Operating condition adjustment system, suitable measurement rotating speed and the lubricating condition of setting, by moment of torsion closed loop, Angle Position closed loop and speed The mode of closed loop is spent, rotating speed and moment of torsion in measurement process is precisely controlled, it is to avoid the interference of resonance and lubrication to measurement result;
5) after relevant parameters such as sample frequency, sampling time, sample mode etc., are set in data acquisition software, such as Fig. 7 Shown gear dynamic transmission error signal handling process, main driven axle is obtained using the double-reading head of Circular gratings angular transducer The change information of Angle Position, grating signal is obtained after being processed through signal condition unit DSI by data acquisition unit;
6), due in the measurement process of dynamic transmission error of gear, using a pair of grid line number identical Circular gratings, circle The pulse number of grating output represents angle information.Therefore, transmission is missed using digital phase comparing method and Digital Signal Processing Poor continuous comparison procedure is converted into the comparison procedure of the pulse signal number of different frequency, if coaxially pacifying with input, output shaft The Circular gratings pulse equivalency of dress is P1, P2.Then the driving error value of kth (k=1,2 ... n, is positive integer) secondary sampling instant is:
Wherein,Respectively kth (k=1,2 ... n) the output pulse number of secondary input, output shaft Circular gratings, I is gearratio.
Then the dynamic transmission error of gear under the conditions of simulation real working condition, tooth are just obtained according to driving error Computing Principle The dynamic driving error curve of wheel is as shown in figure 8, generate measurement report simultaneously.

Claims (7)

1. dynamic transmission error of gear measuring method, it is characterised in that:Under the gear real work system of simulation, it is considered to gear Workload and lubricating condition, using the high accuracy circular grating acquisition master of non-fit, by the information of the Angle Position of gear, by number Word carries out data processing than phase method, obtains the motion transmission error of gear;Dynamic transmission error of gear measuring method includes:① Using the sensor installed in motion transmission error measuring means front-end of spindle, using experimental modal analysis method, dynamic is obtained The intrinsic frequency of driving error measurement apparatus and its each order harmonic frequency;2. by changing the machine of motion transmission error measuring means Tool system architecture, changes its intrinsic modal frequency and its harmonic frequency, approaches the mould of real work system residing for detected gear State frequency, make the measurement of motion transmission error is carried out under the real work system mode of simulation;3. by Operating condition adjustment system, The suitable measurement rotating speed of setting, load and lubricating condition, it is to avoid resonate and lubricate the interference to measurement result;4. Circular gratings are used Angular transducer obtains the angle position information of active and passive gear, using digital phase comparing method and Digital Signal Processing, according to biography Dynamic error calculation principle obtains the dynamic transmission error of gear of the real work system mode of simulation.
2. using the dynamic transmission error of gear measurement apparatus structure of claim 1 methods described design, it is characterised in that:The survey Amount device by gear chucking device (7), precision rotating shafting (8), precise mobile platform (18), motor (31), shaft coupling (32), Torque sensor (33) and magnetic powder brake (34) are constituted;Motor (31) is acted in the positioning and guiding of end face seam, by seam Anchor ring coordinates with the motor installing hole on precise mobile platform (8), mobile flat installed in precision by the way of mode connects for screw On platform;The power of motor (31) is transferred to precision rotating shafting (8) through shaft coupling (32), will by way of bolt drives swelling Shaft coupling (32) one end is connected with motor (31), and one end is connected with precision rotating shafting (8);The magnetic powder brake of shaft hollow formula (34) output shaft with torque sensor (33) is direct-connected, and magnetic powder brake (34) is oriented to by the short cone of seam, and end face coordinates spiral shell The mode for compressing is followed closely to be connected on precise mobile platform (18);Load is exported through torque sensor (33) flange, using shaft coupling (32) it is connected with precision rotating shafting (8), shaft coupling (32) uses swelling principle with the attachment of precision rotating shafting;Utilize The short cone of precision rotating shafting (8) front end coordinates with gear chucking device (7), ensures to install essence by the way of end face laminating , be connected for gear chucking device (7) and precision rotating shafting (8) using soket head cap screw connection method by degree;Motor (31) is same Step torque motor, can be coordinated with the output of precise control moment of torsion with torque sensor (33), constitute moment of torsion closed loop, it is ensured that survey The stabilization loaded during amount, it is to avoid the fluctuation of load influences the precision of testing result;Motor (31) is controlled by driver with motion Unit component movement control system processed, by way of moment of torsion closed loop, Angle Position closed loop and speed closed loop, is precisely controlled and measured Rotating speed and moment of torsion in journey, and according to Test Cycle real-time regulation lubricating condition;Rotational speed regulation is carried out, any detection can be met It is required that.
3. dynamic transmission error of gear measurement apparatus structure according to claim 2, it is characterised in that:Precise mobile platform (18) by drive end guide rail lock (19), drive end guide rail (20), measurement apparatus base (21), drive end screw block (22), active Terminal filament thick stick (23), drive end casing (24), grating long (25), Partner casing (26), Partner guide rail lock (27), passive terminal filament Thick stick (28), Partner screw block (29), handwheel (30) and Partner guide rail (35) composition;Drive end guide rail (20) is solid by screw The mode that fixed and guide rail briquetting is compressed is arranged on measurement apparatus base (21) y-axis direction;Partner guide rail (35) is solid by screw The mode that fixed and guide rail briquetting is compressed is arranged on measurement apparatus base (21) x-axis direction;Drive end casing (24) is slided by guide rail Block is arranged on drive end guide rail (20), and drive end guide rail lock (19) is fixed by screws on drive end casing (24);Work as master When moved end casing (24) is moved to specified location along drive end guide rail (20), (19) is locked by drive end guide rail and locks drive end case The movement of body (24), it is ensured that the stability of measurement process center distance change, it is to avoid the interference that centre-to-centre spacing change at random is brought;Actively End screw block (22) is fixed by screws in measurement apparatus base (21) y directions, and drive end leading screw (23) is directly installed on actively On end screw block (22);Partner casing (26) is arranged on Partner guide rail (35) by guide rail slide block, drive end guide rail lock (19) it is fixed by screws on Partner casing (26);When Partner casing (26) be moved to along Partner guide rail (35) it is specified During position, the movement that (27) lock Partner casing (26) is locked by Partner guide rail, it is to avoid along facewidth direction in measurement process The interference that brings of change at random;Partner screw block (29) is fixed by screws in measurement apparatus base (21) x directions, passively Terminal filament thick stick (28) is directly installed on drive end screw block (22), end of the handwheel (30) installed in Partner leading screw (28);It is long Grating (25) is fixed by screws on measurement apparatus base (21), and drive end guide rail (20) keeping parallelism, monitoring center away from Change;Precise mobile platform can either in the x-direction be moved and moved in the y-direction, it is ensured that different size tooth is met in measurement process Requirement in terms of Lun Ju centers and gear.
4. dynamic transmission error of gear measurement apparatus structure according to claim 2, it is characterised in that:Precision rotating shafting (8) by main shaft (9), bearing cap (10), locking nut (11), rear bearing (12), fore bearing (36), main shaft outer barrel (13), bearing Liner (14), bearing outer lining (15), Circular gratings (16) and main shaft end cap (17) composition;Main shaft (9) and all of shafting are all installed In the inside of main shaft outer barrel (13), form one and complete independent shafting unit;Main shaft (9) foremost by screw fasten Mode is equipped with Circular gratings (16), and main shaft end cap (17) is arranged on the front end of main shaft outer barrel (13) by way of screw is fastened, prevents Only external dust, greasy dirt etc. invade shafting, the normal work of interference Circular gratings (16);The front end of fore bearing (36) inner ring leans against master On the front end boss of axle (9), the front end of outer ring is leaned against on the front end boss of main shaft outer barrel (13), outside bearing liner (14) and bearing Lining (15) is respectively held against the rear end of fore bearing (36) inner ring and the rear end of fore bearing (36) outer ring;The Internal and external cycle of bearing (12) divides afterwards Bearing liner (14) and bearing outer lining (15) are not propped up, and altering for bearing inner race and bearing liner (14) is pinned with locking nut (11) Dynamic, bearing cap (10) is pressed into by screw from main shaft outer barrel (13) rear end, pins the axial direction of bearing outer ring and bearing outer lining (15) Play.
5. dynamic transmission error of gear measurement apparatus structure according to claim 2, it is characterised in that:Gear chucking device (7) it is made up of the short axis of cone (4), gear expansion set (6) and gear (5);The short axis of cone (4) is engaged by axle with gear (5) with hole, tooth In the short axis of cone (4), end passes through gear expansion set (6) swelling to wheel (5);The advantage of this device is to work as gear set specifications Size need not redesign precision bearing system and need to only redesign the short axis of cone (4) when different, and the structure of short taper hole is convenient to be adjusted The installation accuracy of whole gear, the gear expansion set (6) of Quick fastening improves the speed of gear installation, improves the facility of operation Property.
6. dynamic transmission error of gear measurement apparatus structure according to claim 2, it is characterised in that:Gear expansion set (6) by Inner expension cap (1), outer expansion set (2) and screw (3) composition, outer expansion set (2) are maintained at outside, end of the inner expension cap (1) from outer expansion set (2) End insertion, is formed a whole inside and outside expansion set by screw (3);The characteristics of expansion set be all be carved with inside and outside expansion set it is small Groove, fully ensures that the elasticity of inside and outside expansion set, cone match is used between inner expension cap (1) and outer expansion set (2), when tightening or unclamp spiral shell During nail, the swelling amount of expansion set is adjusted;The taper of inside and outside expansion set and the length of expansion set determine the swelling amount of expansion set, and swelling amount is bigger The moment of torsion that can be born is bigger.
7. dynamic transmission error of gear measurement apparatus structure according to claim 2, it is characterised in that:Passed using gear dynamic Dynamic error measuring means, using dynamic transmission error of gear measuring method, the implementation of prototype gear motion transmission error is such as Under:
1), gear is installed, 1. using the short axis of cone (4) inner conical surface and precision rotating shafting (8) the conical surface cooperation, by screw The mode of adjustment adjusts shafting circular runout and end face run-out, the installation accuracy of the short axis of cone (4) is detected using amesdial, until axle System's bounce precision meets requirement;2. gear is installed on gear chucking device (7) using gear expansion set (6), by tightening or The mode for unclamping screw adjusts swelling, until swelling amount meets bearing requirements;
2), the distance in adjustment centre-to-centre spacing and facewidth direction, leading screw is driven using handwheel handwheel (30), and centre-to-centre spacing and tooth are adjusted respectively The size in direction is taken turns, using Grating examinations centre-to-centre spacing long until meeting measurement request, then using drive end guide rail lock (19) lock Tight drive end and using Partner guide rail lock (27) locking Partner, it is ensured that measurement process master, will not be occurred because of load by end It is mobile, influence certainty of measurement;
3), using the sensor in dynamic transmission error of gear measurement apparatus, gear is obtained by modal analysis technique The modal frequency of motion transmission error measuring means;By the mechanical system knot for changing dynamic transmission error of gear measurement apparatus Structure, changes its intrinsic modal frequency and its harmonic frequency, approaches the modal frequency of real work system residing for detected gear;
4) dynamic transmission error of gear measurement apparatus, are opened, be input into as requested it is main, by gear parameter and operating condition parameter; By Operating condition adjustment system, suitable measurement rotating speed and the lubricating condition of setting is closed by moment of torsion closed loop, Angle Position closed loop and speed The mode of ring, is precisely controlled rotating speed and moment of torsion in measurement process, it is to avoid the interference of resonance and lubrication to measurement result;
5) after, setting relevant parameters such as sample frequency, sampling time, sample mode etc. in data acquisition software, using circle light Grid angular transducer obtains the change information of the Angle Position of main driven axle;
6), using digital phase comparing method and Digital Signal Processing, simulation real working condition is obtained according to driving error Computing Principle Under the conditions of dynamic transmission error of gear and generate measurement report.
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CN108562425A (en) * 2018-02-05 2018-09-21 重庆机床(集团)有限责任公司 Gear hobbing machine knife frame test platform and its test method
CN110487662A (en) * 2018-05-15 2019-11-22 罗伯特·博世汽车转向有限责任公司 The Corrosion monitoring based on power of Vehicular turn rack gear
CN109141873A (en) * 2018-09-29 2019-01-04 济南大学 A kind of center is away from adjustable gear chamber
CN109489599A (en) * 2018-11-12 2019-03-19 北京工业大学 A kind of self-alignment Involute Gear Pair vibration displacement and motion transmission error measurement method
CN109489599B (en) * 2018-11-12 2020-01-24 北京工业大学 Self-calibration involute gear pair vibration displacement and dynamic transmission error measurement method
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CN109253878A (en) * 2018-11-14 2019-01-22 北京工业大学 A kind of Plastic Gear Transmission error testing structure
CN109754442B (en) * 2019-01-10 2023-02-21 重庆大学 Gear pitting detection system based on machine vision
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CN110455247A (en) * 2019-09-18 2019-11-15 北京工业大学 A kind of gear fixture suitable for roughness contourgraph
CN110455247B (en) * 2019-09-18 2021-08-06 北京工业大学 Gear clamp suitable for roughness profiler
CN112781865A (en) * 2020-12-25 2021-05-11 中国船舶重工集团公司第七0三研究所 Gear vibration noise test method
CN113883988A (en) * 2021-09-22 2022-01-04 中国北方车辆研究所 Double-output high-precision centering device for transmission center of power device
CN113883988B (en) * 2021-09-22 2023-07-14 中国北方车辆研究所 Double-output high-precision centering device for power device transmission center
CN115773879A (en) * 2023-01-30 2023-03-10 北京理工大学 Crawler vehicle gear transmission system installation error influence mechanism simulation device and method
CN115773879B (en) * 2023-01-30 2023-05-19 北京理工大学 Device and method for simulating installation error influence mechanism of gear transmission system of tracked vehicle

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