CN206420654U - A kind of flexible precise thin-wall bearing failure diagnosis life test machine - Google Patents

Abstract

The utility model discloses a kind of flexible precise thin-wall bearing failure diagnosis life test machine, including frame and the axial loading device, main drive, bearing Mounting device, clamping tooling, data acquisition device, hydraulic pressure and the Pneumatic auxiliary device that are arranged in the frame, the main drive connection is located at the rear side of axial loading device, clamping tooling is located at the front side of axial loading device, for by thin-wall bearing clamping in bearing Mounting device；The data acquisition device be located in axial loading device and frame side, the hydraulic pressure and Pneumatic auxiliary device are located at the side of frame, pass through pipeline and connect axial loading device and main drive.The utility model can apply Dynamic And Static Loads for accurate flexible thin-wall bearing, the measurement to bear vibration, bearing temperature, bearing revolution progress and rotating speed can be realized again, with clever structure, test function is perfect, with higher measuring accuracy, detection process is safe and reliable, the advantages of as a result feedback is strong.

Description

A kind of flexible precise thin-wall bearing failure diagnosis life test machine

Technical field

The utility model is related to a kind of flexible precise thin-wall bearing failure diagnosis life test machine, and the harmonic wave that is particularly suitable for use in subtracts Fast device is belonged to accurate flexible thin-walled bearing failure diagnosis, particularly a kind of life test testing machine based on sensor technology Mechanical fault diagnosis field.

Background technology

Harmonic speed reducer is that one kind makes flexbile gear produce controlled elasticity deformation by wave producer, utilizes the controllable bullet of flexible bearing Property deformation carry out motion and power transmission.Harmonic speed reducer has that high speed reducing ratio, quality be small, lightweight, transmission as one kind The decelerator of the premium properties such as precision height, is acknowledged as the robot travelling gear of " fitst water ", is widely used in various In the transmission system in the fields such as spacecraft, airship, robot, radar equipment, Medical Devices.

At present, China is just greatly developing the high-end intelligent equipment industry artificially represented with machine, since 2013, China Turn into Industrial Robot Market maximum in countries in the world within continuous 3 years.China is just stepping into industrial robot production at present Industry developing stage, but in industry of industrial robots process, there are many problems for hindering to develop.Wherein, with essence Close decelerator for representative kernel component can not self-centered present situation seem especially prominent.

Accurate flexibility thin-wall bearing is the core component of harmonic speed reducer, and the overall performance of harmonic speed reducer is played to pass Important effect.Accurate flexibility thin-wall bearing in the operating condition, is subjected to and thin-wall bearing inner ring precision-fit elliptical shaft It is crowded it is swollen under elastic deformation, and still suffer from because of the alternate stress that itself operating is produced, and in the undesirable feelings of operating mode Under condition, still suffer from from extraneous different static load or dynamic load power.Therefore, in research and development of the harmonic speed reducer with flexible thin-wall bearing During, it should accurate flexible thin-walled antiwhip, rotating accuracy and life-span are tested, treat that properties reach It is required that after could the production of invested in plant metaplasia, and then the bottleneck problem of China's industrial robot kernel component is solved, to realize me The industrialization of state's industrial robot and extensively using providing support, but both at home and abroad for flexible thin-wall bearing and its life test machine Seldom had been reported that with flexible thin-walled method for diagnosing faults.

Accurate flexibility thin-wall bearing as harmonic speed reducer key components and parts, its rotating accuracy under different operating modes and Stability has very important effect to harmonic speed reducer overall performance.The geometrical cross-sectional shape of accurate flexibility thin-wall bearing is Circle, is changed into ellipse in harmonic speed reducer after stand under load.Therefore, the harmonic speed reducer flexible thin-walled bearing failure diagnosis of precision And the development of life test machine should simulate the life test under flexible thin-wall bearing actual condition as far as possible.

Utility model content

The purpose of this utility model is to provide in a kind of simulation harmonic speed reducer flexible thin-wall bearing under actual condition The fault diagnosis and life test testing machine of two kinds of load modes of sound, complete the test to the vibration signal of flexible thin-wall bearing With analysis, and then a kind of fault diagnosis testing scheme of accurate flexible thin-wall bearing is provided.

The purpose of this utility model is realized by following scheme：

A kind of flexible precise thin-wall bearing failure diagnosis life test machine, including frame and the axle being arranged in the frame To loading device, main drive, bearing Mounting device, clamping tooling, data acquisition device, hydraulic pressure and Pneumatic auxiliary device, The main drive connection is located at the rear side of axial loading device, and clamping tooling is located at the front side of axial loading device, is used for By thin-wall bearing clamping on bearing Mounting device；The data acquisition device be located in axial loading device and frame one Side, the hydraulic pressure and Pneumatic auxiliary device are located at the side of frame, and axial loading device and main drive are connected by pipeline.

Further, described main drive includes electro spindle mounting seat and electro spindle, described electro spindle mounting seat It is locked at by T-bolt in frame, the electro spindle is bolted in electro spindle mounting seat.

Further, described clamping tooling includes clamping fixture seat, fixture handle, determines jaw, movable clamp port, determine compact heap, move Compact heap, fixture pallet and guide rod, described clamping fixture seat are locked in the T-slot set by platform floor by T-bolt, The fixture handle, movable clamp port and determine jaw and be located on clamping fixture seat, the movable clamp port and the cunning in fixture handle institute connecting screw rod Motion block is connected, described to determine compact heap and dynamic compact heap is located at and determined between jaw and movable clamp port, described to determine compact heap and determine jaw It is fastened by bolts together, together with the dynamic compact heap is fastened by bolts with movable clamp port, the fixture pallet is arranged on Determine the lower section of compact heap and dynamic compact heap, the fixture pallet is divided into two pieces, and one piece is fastened with determining compact heap by screw, another Block is fastened with dynamic compact heap by screw, and guide rod, which is located at, to be determined between compact heap and dynamic compact heap, for be oriented to determine compact heap with Move closing up for compact heap.

Further, described bearing Mounting device includes bearing fixing body, blind rivet, thin-wall bearing, boss clamping plate, stepped up The symmetrical semicircle clamping plate of bolt, anti-decylization and two, described blind rivet is described by being screwed at the afterbody of bearing fixing body Circular conical surface on the electro spindle in circular conical surface and main drive on bearing fixing body cooperates and locked by blind rivet, institute The taper ratio for stating circular conical surface is 7:24；Thin-wall bearing is located on the oval neck of bearing fixing body, the oval neck The difference of major axis and short axle is high 1-1.3 times of flexbile gear tooth；Boss clamping plate is located at the outside of thin-wall bearing, and semicircle clamping plate is located at thin-walled The inner side of bearing, boss clamping plate and semicircle clamping plate clamp the middle thin-wall bearing placed by clamp stud, and anti-decylization, which is located at, to be added On tight bolt, clamp stud is provided with the via for installing anti-decylization.

Further, described axial loading device include load driver device, load driver elliptical shaft, load bearings, Loading axis, loading connecting rod, loading screw rod, loading support, loading spring, pressure sensing mounting seat, pressurizing block, lubricate oil outlet, Load bearing, current vortex mounting bracket, lubrication inlet nozzle, loading motor mounting seat, loading axis mounting blocks, loading blocks mounting seat, under Oil groove shrouding and finishing bathtray shrouding, described loading bearing are fixed on platform floor by T-bolt, and loading axis mounting blocks are left Right two pieces are symmetrically arranged at the top for loading bearing, and loading motor mounting seat is located at the top of loading axis mounting blocks, passes through bolt lock Tight to be fixed on through loading axis mounting blocks on loading bearing, it is tight that finishing bathtray shrouding is located at loading axis mounting blocks front and rear sides screw Gu, load driver device is located at the top of loading motor mounting seat, the rolling bearing that load driver elliptical shaft is provided with by two ends It is fixed between loading bearing and loading motor mounting seat, load bearings are fixed on one end of loading axis, and loading axis is located at loading On axle mounting blocks, loading connecting rod is connected with the U-shaped hole that loading axis is set by loading on connecting rod, and loading support one end is fixed on Load on bearing, the other end is connected with loading connecting rod by pin, loading screw rod is located at one end of loading connecting rod, loading spring It is located between pressure sensing mounting seat and loading screw rod, pressure sensing mounting seat is located at one end of loading spring, and pressurizing block is located at Load on bearing and positioned at the inside of loading blocks mounting seat guide groove, lower oil groove shrouding is fixed on the front and rear sides of loading bearing, Loading blocks mounting seat is bolted on the inside of loading bearing, and lubrication inlet nozzle is located at the top of loading motor mounting seat, Lubrication oil outlet is located at the lower section centre position of loading bearing, and current vortex mounting bracket is fixed on finishing bathtray shrouding, for installing Current vortex sensor, temperature sensor and speed probe.

Further, described data acquisition device includes：Pressure sensor, acceleration transducer, current vortex sensor, Temperature sensor, speed probe and data acquisition unit, described pressure sensor, acceleration transducer, temperature sensor, electricity Eddy current sensor and speed probe are separately mounted on axial loading device, and temperature sensor is separately positioned on electro spindle with adding Near briquetting, data acquisition unit is located at the side of frame, gathers the data of each sensor.

Further, described hydraulic pressure and Pneumatic auxiliary device include：Main drive motor, radiating solenoid directional control valve, lubrication Solenoid directional control valve, lubrication pressure-reducing valve, cooling pressure-reducing valve, oil pipe, radiating motor, radiator fan, air pump, aqueous vapor filter, gas circuit Solenoid directional control valve, appendix, oil return solenoid valve, filter, check valve, overflow valve and fuel tank, described main drive motor, radiating Solenoid directional control valve, lubrication solenoid directional control valve, radiating motor, radiator fan, gas circuit solenoid directional control valve, oil return solenoid valve and overflow valve It is arranged on the top of fuel tank, the oil-feed of the oil-out of main drive motor respectively with radiating solenoid directional control valve and lubrication solenoid directional control valve Mouth P is connected, and radiating solenoid directional control valve is connected cooling pressure-reducing valve and lubrication pressure-reducing valve, electro spindle respectively with lubrication solenoid directional control valve Cooling joint with cool down pressure-reducing valve outlet be connected by oil pipe, lubrication inlet nozzle with lubricate pressure-reducing valve be connected by oil pipe Connect, overflow valve, radiator fan are provided between main drive motor and radiating solenoid directional control valve and the oil inlet P for lubricating solenoid directional control valve It is connected with radiating motor, the blowing mouth of air pump is connected with the air inlet of aqueous vapor filter, the gas outlet point of aqueous vapor filter Two-way, is connected with gas circuit solenoid directional control valve all the way, and another road is connected with oil return solenoid valve, and gas circuit solenoid directional control valve passes through defeated Tracheae is connected with the clamping on electro spindle with releasable joint, and oil return solenoid valve is connected with lubricating the oil return opening B of solenoid directional control valve Connect, the lubrication oil outlet in axial loading device is connected by oil pipe with the oil inlet end of check valve, check valve oil-out and mistake Filter oil inlet end is connected, and filter oil-out is connected with the gas outlet A of oil return solenoid valve.

Further, the load driver elliptical shaft in described axial loading device is provided with elliptical section, the elliptical section Major axis 10-30mm longer than short axle；Annular oil groove is provided with the bottom edge of loading bearing in described axial loading device, The annular oil groove is connected with lubrication oil outlet；The deep-slotted chip breaker of pressurizing block in described axial loading device is tied to be circular Structure.

Further, the endoporus determined when compact heap closes up with dynamic compact heap in described clamping tooling is oval structure, Provided with circular positioning boss, internal diameter big 1- of the diameter than thin-wall bearing of the circular positioning boss above the fixture pallet 2mm。

Further, described frame includes：Foot stool, support frame, panel, platform floor and snubber block, described foot stool The bottom of four support pin of support frame is located at, the level for adjusting panel, the panel is bolted on support frame On, the snubber block is located between panel and platform floor, and the platform floor is fastenedly connected by Lengthened bolt with panel, and Lengthened bolt is lined with vibration isolation rubber.

Compared with prior art, the utility model realizes flexible thin-wall bearing accurate to harmonic speed reducer more true Failure life test is carried out under real operating mode, Dynamic And Static Loads can be applied for accurate flexible thin-wall bearing, and can realize to bearing Vibration, bearing temperature, bearing revolution progress and rotating speed measurement, with clever structure, test function is perfect, with higher survey Precision is tried, detection process is safe and reliable, the advantages of as a result feedback is strong.

Brief description of the drawings

Fig. 1 is the overall structure axle side structure schematic diagram of the utility model embodiment.

Fig. 2 is the axle side structure schematic diagram at another visual angle of overall structure of the utility model embodiment.

Fig. 3 is the overall structure schematic front view of the utility model embodiment.

Fig. 4 is the schematic cross-sectional view in A-A directions in Fig. 3.

Fig. 5 is the axle side structure schematic diagram of the clamping tooling of the utility model embodiment.

Fig. 6 is the schematic cross-sectional view of the clamping tooling of the utility model embodiment.

Fig. 7 is the axle side structure schematic diagram of the utility model bearing Mounting device.

Fig. 8 is the schematic cross-sectional view of the utility model bearing Mounting device.

Fig. 9 is the left view schematic diagram of the bearing Mounting device of the utility model embodiment.

Figure 10 is the hydraulic pressure and Pneumatic auxiliary device connection diagram of the utility model embodiment.

Figure 11 is the connection diagram of the data acquisition device of the utility model embodiment.

Shown in figure：1 is foot stool, and 2 be support frame, and 3 be panel, and 4 be platform floor, and 5 be snubber block, and 6 be clamping fixture seat, 7 For fixture handle, 8 is determine jaw, and 9 be movable clamp port, and 10 is determine compact heap, and 11 be dynamic compact heap, and 12 be fixture pallet, and 13 be to lead To bar, 14 be bearing fixing body, and 15 be blind rivet, and 16 be thin-wall bearing, and 17 be boss clamping plate, and 18 be clamp stud, and 19 be anticreep Ring, 20 be semicircle clamping plate, and 21 be electro spindle mounting seat, and 22 be electro spindle, and 23 be load driver device, and 24 be that load driver is oval Axle, 25 be load bearings, and 26 be loading axis, and 27 be loading connecting rod, and 28 be loading screw rod, and 29 be loading support, and 30 be loading bullet Spring, 31 pressure sensing mounting seats, 32 be pressure sensor, and 33 be pressurizing block, and 34 be lubrication oil outlet, and 35 be loading bearing, 36 It is current vortex mounting bracket for acceleration transducer, 37,38 be lubrication inlet nozzle, and 39 be current vortex sensor, and 40 be loading motor Mounting seat, 41 be loading axis mounting blocks, and 42 be loading blocks mounting seat, and 43 be lower oil groove shrouding, and 44 be finishing bathtray shrouding, based on 45 Drive motor, 46 be radiating solenoid directional control valve, and 47 be lubrication solenoid directional control valve, and 48 be lubrication pressure-reducing valve, and 49 be oil pipe, and 50 be scattered Hot motor, 51 be radiator fan, and 52 be air pump, and 53 be aqueous vapor filter, and 54 be gas circuit solenoid directional control valve, and 55 be appendix, 56 It is filter for oil return solenoid valve, 57,58 be check valve, and 59 be overflow valve, and 60 be fuel tank, and 61 be temperature sensor, and 62 be to turn Fast sensor, 63 be data acquisition unit, and 64 be oval neck, and 65 be cooling pressure-reducing valve.

Embodiment

Following specific embodiment is made to carry out the description of a step in detail to the purpose of this utility model, and embodiment can not be herein Repeat one by one, but therefore embodiment of the present utility model is not defined in following examples：

As shown in Figure 1 to 11, a kind of flexible precise thin-wall bearing failure diagnosis life test machine, including frame and setting Axial loading device, main drive, bearing Mounting device, clamping tooling, data acquisition device, hydraulic pressure in the frame And Pneumatic auxiliary device, main drive connection is located at the rear side of axial loading device, and clamping tooling is located at axially loaded The front side of device, for by the clamping of thin-wall bearing 16 in bearing Mounting device；The data acquisition device is located at axially loaded In device and frame side, the hydraulic pressure and Pneumatic auxiliary device are located at the side of frame, connect axially loaded by pipeline Device and main drive.

Specifically, described main drive includes electro spindle mounting seat 21 and electro spindle 22, described electro spindle peace Dress seat 21 is locked in the T-slot set by platform floor 4 by T-bolt, and electro spindle 22 is bolted on electro spindle In mounting seat 21.

Specifically, described clamping tooling includes clamping fixture seat 6, fixture handle 7, to determine jaw 8, movable clamp port 10, level pressure tight Block 9, dynamic compact heap 11, fixture pallet 12 and guide rod 13, described clamping fixture seat 6 are locked at the institute of platform floor 4 by T-bolt In the T-slot of setting, the fixture handle 7, movable clamp port 10 and determine jaw 8 and be located on clamping fixture seat 6, the movable clamp port 10 and fixture Sliding shoe in 7 connecting screw rods of handle is connected, described to determine compact heap 9 and dynamic compact heap 11 and be located to determine jaw 8 and movable clamp port Described to determine compact heap 9 together with determining jaw 8 and being fastened by bolts between 10, the dynamic compact heap 11 passes through with movable clamp port 10 Bolt tightens together, and the fixture pallet 12 is arranged on the lower section for determining compact heap 9 and dynamic compact heap 11, the fixture pallet 12 It is divided into two pieces, one piece is fastened with determining compact heap 9 by screw, another piece is fastened with dynamic compact heap 11 by screw, guide rod 13 It is located at and determines between compact heap 9 and dynamic compact heap 11, closing up for compact heap 9 and dynamic compact heap 11 is determined for being oriented to.

Specifically, described bearing Mounting device includes bearing fixing body 14, blind rivet 15, thin-wall bearing 16, boss folder The symmetrical semicircle clamping plate 20 of plate 17, clamp stud 18, anti-decylization 19 and two, described blind rivet 15 is by being screwed at bearing The circular conical surface phase on the electro spindle 22 in circular conical surface and main drive on the afterbody of fixing body 14, the bearing fixing body 14 Interworking merga pass blind rivet 15 is locked, and the taper ratio of the circular conical surface is 7:24；Thin-wall bearing 16 is located at bearing fixing body 14 On oval neck 64, the major axis of the oval neck 64 and the difference of short axle are high 1-1.3 times of flexbile gear tooth；Boss clamping plate 17 The outside of thin-wall bearing 16 is located at, semicircle clamping plate 20 is located at the inner side of thin-wall bearing 16, and boss clamping plate 17 leads to semicircle clamping plate 20 The thin-wall bearing 16 that clamp stud 18 clamps middle placement is crossed, anti-decylization 19 is located in clamp stud 18, and clamp stud 18 is provided with The via of anti-decylization 19 is installed.

Specifically, described axial loading device includes load driver device 23, load driver elliptical shaft 24, loading axis Hold 25, loading axis 26, loading connecting rod 27, loading screw rod 28, loading support 29, loading spring 30, pressure sensing mounting seat 31, plus Briquetting 33, lubrication oil outlet 34, loading bearing 35, current vortex mounting bracket 37, lubrication inlet nozzle 38, loading motor mounting seat 40, Loading axis mounting blocks 41, loading blocks mounting seat 42, lower oil groove shrouding 43 and finishing bathtray shrouding 44, described loading bearing 35 pass through T-bolt is fixed on platform floor 4, and 41 or so two pieces of loading axis mounting blocks are symmetrically arranged at the top of loading bearing 35, loading Motor mount 40 is located at the top of loading axis mounting blocks 41, and loading is fixed on through loading axis mounting blocks 41 by bolt locking On bearing 35, finishing bathtray shrouding 44 is located at the front and rear sides of loading axis mounting blocks 41 and fastened with screw, and load driver device 23 is located at The top of loading motor mounting seat 40, the rolling bearing that load driver elliptical shaft 24 is provided with by two ends is fixed on loading bearing 35 Between loading motor mounting seat 40, load bearings 25 are fixed on one end of loading axis 26, and loading axis 26 is located at loading axis installation On block 41, loading connecting rod 27 is connected with the U-shaped hole that loading axis 26 is set by loading on connecting rod 27, and 29 one end of loading support are consolidated It is scheduled on loading bearing 35, the other end is connected with loading connecting rod 27 by pin, loading screw rod 28 is located at loading connecting rod 27 One end, loading spring 30 is located between pressure sensing mounting seat 31 and loading screw rod 28, and pressure sensing mounting seat 31 is located at loading One end of spring 30, pressurizing block 33 is located on loading bearing 35 and positioned at the inside of the guide groove of loading blocks mounting seat 42, lower oil groove Shrouding 43 is fixed on the front and rear sides of loading bearing 35, and loading blocks mounting seat 42 is bolted on the interior of loading bearing 35 Portion, lubrication inlet nozzle 38 is located at the top of loading motor mounting seat 40, and lubrication oil outlet 34 is located in the lower section of loading bearing 35 Between position, current vortex mounting bracket 37 is fixed on finishing bathtray shrouding 44, for installing current vortex sensor 39, temperature sensor 61 With speed probe 62.

Specifically, described data acquisition device includes：Pressure sensor 32, acceleration transducer 36, current vortex are passed Sensor 39, temperature sensor 61, speed probe 62 and data acquisition unit 63, described pressure sensor 32, acceleration sensing Device 36, temperature sensor 61, current vortex sensor 39 and speed probe 62 are separately mounted on axial loading device, and temperature is passed Sensor 61 is separately positioned on electro spindle 22 and near pressurizing block 33, data acquisition unit 63 is located at the side of frame, gathers each biography The data of sensor.

Specifically, described hydraulic pressure and Pneumatic auxiliary device include：Main drive motor 45, radiating solenoid directional control valve 46, Lubricate solenoid directional control valve 47, lubrication pressure-reducing valve 48, cooling pressure-reducing valve 65, oil pipe 49, radiating motor 50, radiator fan 51, air pump 52nd, aqueous vapor filter 53, gas circuit solenoid directional control valve 54, appendix 55, oil return solenoid valve 56, filter 57, check valve 58, overflow Valve 59 and fuel tank 60, described main drive motor 45, radiating solenoid directional control valve 46, lubrication solenoid directional control valve 47, radiating motor 50, Radiator fan 51, gas circuit solenoid directional control valve 54, oil return solenoid valve 56 and overflow valve 59 are arranged on the top of fuel tank 60, main driving horse Up to 45 oil-out respectively with radiating solenoid directional control valve 46 and lubrication solenoid directional control valve 47 oil inlet P be connected, radiating electromagnetism Reversal valve 46 is connected cooling pressure-reducing valve 65 and lubrication pressure-reducing valve 48 respectively with lubrication solenoid directional control valve 47, and the cooling of electro spindle 22 connects Outlet of the head with cooling down pressure-reducing valve 65 is connected by oil pipe 49, and lubrication inlet nozzle 38 passes through the phase of oil pipe 49 with lubrication pressure-reducing valve 48 Overflow valve is provided between connection, main drive motor 45 and radiating solenoid directional control valve 46 and the oil inlet P for lubricating solenoid directional control valve 47 59, radiator fan 51 is connected with radiating motor 50, and the blowing mouth of air pump 52 is connected with the air inlet of aqueous vapor filter 53, water The gas outlet of air filter 53 point two-way, is connected with gas circuit solenoid directional control valve 54 all the way, another road and the phase of oil return solenoid valve 56 Connection, gas circuit solenoid directional control valve 54 is connected by appendix 55 with the clamping on electro spindle 22 with releasable joint, oil return electromagnetism Valve 56 is connected with lubricating the oil return opening B of solenoid directional control valve 47, and the lubrication oil outlet 34 in axial loading device passes through oil pipe 49 It is connected with the oil inlet end of check valve 58, the oil-out of check valve 58 is connected with the oil inlet end of filter 57, the oil-out of filter 57 It is connected with the gas outlet A of oil return solenoid valve 56.

In another feasible embodiment of the present utility model, the load driver elliptical shaft in described axial loading device 24 are provided with elliptical section, the major axis 10-30mm longer than short axle of the elliptical section；Loading bearing in described axial loading device Annular oil groove is provided with 35 bottom edge, the annular oil groove is connected with lubrication oil outlet 34；Described axially loaded dress The deep-slotted chip breaker of pressurizing block 33 in putting is circular configuration.

In another feasible embodiment of the present utility model, in described clamping tooling to determine compact heap 9 tight with dynamic pressure Endoporus when block 11 closes up is oval structure, and the top of fixture pallet 12 is provided with circular positioning boss, the circular convex Internal diameter big 1-2mm of the diameter of platform than thin-wall bearing 16.

In another feasible embodiment of the present utility model, described frame includes foot stool 1, support frame 2, panel 3, flat Platform bottom plate 4 and snubber block 5, described foot stool 1 are located at the bottom of four support pin of support frame 2, the water for adjusting panel 3 Flat, the panel 3 is bolted on support frame 2, and the snubber block 5 is located between panel 3 and platform floor 4, described Platform floor 4 is fastenedly connected by Lengthened bolt with panel 3, and Lengthened bolt is lined with vibration isolation rubber, and described electro spindle is installed Seat 21 is locked in the T-slot set by platform floor 4 by T-bolt.

The operation principle of above-described embodiment is as follows：

The development of the accurate flexible thin-walled bearing failure diagnosis of harmonic speed reducer and life test machine should mould as far as possible Intend the actual condition of flexible thin-wall bearing ovalizing deflection, then carry out life test.So, the flexibility essence that above-described embodiment is provided Close thin-wall bearing fault diagnosis life test machine, including axial loading device, main drive, bearing Mounting device, clamping work Dress, data acquisition device, hydraulic pressure and Pneumatic auxiliary device and frame, axial loading device is according to the actual work of harmonic wave speed reducing machine Condition, is arranged to flexible loading mechanism, the arc of pressurizing block 33 is circular configuration, can prevent outer ring from killing by axial loading device. The actual conditions worked according to thin-wall bearing 16 in harmonic speed reducer, will determine compact heap 9 and dynamic compact heap 11 in clamping tooling Close up and be set to ellipse, the ellipse be actually subjected to it is oval in the same size in wave producer in the harmonic speed reducer of detection, simultaneously Again because harmonic reduction is generally 3 class precisions with the precision of accurate flexible thin-wall bearing and Internal and external cycle is circular, in order to ensure peace Dress precision spy devises clamping tooling.The top of bearing fixing body 14 in bearing Mounting device is provided with oval neck 64, should Oval neck 64 is also consistent with being actually subjected to the elliptical inner size in the harmonic speed reducer of detection in wave producer.

The operating process of above-described embodiment is：

First, clamping thin-wall bearing 16 is on bearing fixing body 14：

1）Fixture handle 7 is shaken, clamping tooling is opened, circular thin-wall bearing 16 is placed into and determines compact heap 9 and dynamic pressure Between tight block 11, then shake fixture handle 7 and will determine compact heap 9 and close up with dynamic compact heap 11, the thin-wall bearing 16 of circle is squeezed Elliptical shape is pressed into, in order to ensure to close up precision, the inside of fixture pallet 12 is provided with guide rod 13.

2）Bearing fixing body 14 is gently beaten with aluminium block and is placed into the thin-wall bearing 16 of ellipse, in order to ensure bearing Fixing body 14 and the installation accuracy of thin-wall bearing 16, boss is provided with the top of fixture pallet 12, thus ensure bearing fixing body 14 with The axially position precision of thin-wall bearing 16.

3）Clamping tooling is unclamped, bearing fixing body 14 is taken out.

The 2nd, bearing Mounting device is installed：

1）Complete after the first step, take out bearing fixing body 14 and then installation base clamping plate 17 and semicircle clamping plate 20, with adding Tight bolt 18 is fixed, in order to prevent that nut comes off in test process, and elastic washer is laid below nut, installs anti-on nut Blind rivet 15, is then arranged on bearing fixing body 14 by decylization 19.

3rd, thin-wall bearing 16 is carried out to test：

1）Install after second step, start hydraulic pressure and Pneumatic auxiliary device and electrical control gear, open gas circuit electromagnetism Reversal valve 54, start electro spindle 22 send out function that bearing fixing body 14 is put into startup electro spindle 22, after placing, so Switching gas circuit solenoid directional control valve 54 locks bearing fixing body 14 afterwards.

2）Then shifting main drive onto appropriate location makes the pressurizing block 33 in axial loading device with certain intensifying force Step up thin-wall bearing 16, screw rod 28 can be loaded according to actual test content adjustment or start-up loading drive device 23 is completed to thin-walled The loading of the Dynamic And Static Loads of bearing 16.

3）After load required for having adjusted, start hydraulic pressure and radiating solenoid directional control valve 46 in Pneumatic auxiliary device, lubrication Solenoid directional control valve 47 and radiating motor 50, first drive radiating solenoid directional control valve 46 and open lubrication electromagnetism 47 again, open corresponding auxiliary work( After energy, then start electro spindle 22, make electro spindle 22 with certain rotational speed.

4th, data acquisition is carried out：

1）After the utility model normally starts, data acquisition is proceeded by, the survey to the rotating speed of electro spindle 22 and temperature is completed Amount, the collection of the temperature of thin-wall bearing 16 and vibratory output, the measurement of the revolution progress of bearing fixing body 14.

Wherein, in the design of the utility model embodiment electro spindle 22 need a set of cooling system and a set of pneumatic pinch with Source of the gas is unclamped, on the premise of the work of electro spindle 22 is met, axial loading device is also required to a set of lubricating system, so this practicality New embodiment devises a set of hydraulic pressure as shown in Figure 10 and Pneumatic auxiliary device oil gas figure, and the oil return of axial loading device Do not have pressure on road and be difficult to realize automatic oil return, so setting up oil return solenoid valve 56, filter 57 and list according to siphonage To valve 58, so as to complete lubricating oil return.

The embodiment is only preferably example of the present utility model, is not to the utility model embodiment Limit, for those of ordinary skill in the field, other multi-forms can also be made on the basis of the explanation Change or variation, there is no necessity and possibility to exhaust all the enbodiments, all in spirit of the present utility model and former Any modifications, equivalent substitutions and improvements made within then etc., should be included in claims of the present utility model Within.

Claims (10)

1. a kind of flexible precise thin-wall bearing failure diagnosis life test machine, including frame and the axial direction being arranged in the frame Loading device, main drive, bearing Mounting device, clamping tooling, data acquisition device, hydraulic pressure and Pneumatic auxiliary device, its It is characterised by：The main drive connection is located at the rear side of axial loading device, and clamping tooling is located at axial loading device Front side, for by thin-wall bearing (16) clamping in bearing Mounting device；The data acquisition device is located at axial loading device In and frame side, the hydraulic pressure and Pneumatic auxiliary device are located at the side of frame, axial loading device are connected by pipeline And main drive.

2. flexible precise thin-wall bearing failure diagnosis life test machine according to claim 1, it is characterised in that：Described Main drive includes electro spindle mounting seat (21) and electro spindle (22), and described electro spindle mounting seat (21) passes through T-bolt It is locked in frame, electro spindle (22) is bolted in electro spindle mounting seat (21).

3. flexible precise thin-wall bearing failure diagnosis life test machine according to claim 1, it is characterised in that：Described Clamping tooling includes clamping fixture seat (6), fixture handle (7), determines jaw (8), movable clamp port (10), determines compact heap (9), dynamic compact heap (11), fixture pallet (12) and guide rod (13), described clamping fixture seat (6) are locked at set by platform floor (4) by T-bolt In the T-slot put, the fixture handle (7), movable clamp port (10) and determine jaw (8) and be located on clamping fixture seat (6), the movable clamp port (10) it is connected with the sliding shoe in fixture handle (7) institute connecting screw rod, it is described to determine compact heap (9) and be located at dynamic compact heap (11) Determine between jaw (8) and movable clamp port (10), it is described to determine compact heap (9) together with determining jaw (8) and being fastened by bolts, it is described dynamic Together with compact heap (11) is fastened by bolts with movable clamp port (10), the fixture pallet (12) be arranged on determine compact heap (9) with The lower section of dynamic compact heap (11), the fixture pallet (12) is divided into two pieces, and one piece is fastened with determining compact heap (9) by screw, separately One piece is fastened with dynamic compact heap (11) by screw, and guide rod (13), which is located at, to be determined between compact heap (9) and dynamic compact heap (11), is used Determine closing up for compact heap (9) and dynamic compact heap (11) in being oriented to.

4. flexible precise thin-wall bearing failure diagnosis life test machine according to claim 2, it is characterised in that：Described Bearing Mounting device includes bearing fixing body (14), blind rivet (15), thin-wall bearing (16), boss clamping plate (17), clamp stud (18), anti-decylization (19) and two symmetrical semicircle clamping plates (20), described blind rivet (15) are installed by being screwed at bearing The circular conical surface on the electro spindle (22) in circular conical surface and main drive on the afterbody of body (14), the bearing fixing body (14) Cooperate and locked by blind rivet (15), the taper ratio of the circular conical surface is 7:24；Thin-wall bearing (16) is located at bearing installation On the oval neck (64) of body (14), the major axis of the oval neck (64) and the difference of short axle are the high 1-1.3 of flexbile gear tooth Times；Boss clamping plate (17) is located at the outside of thin-wall bearing (16), and semicircle clamping plate (20) is located at the inner side of thin-wall bearing (16), boss Clamping plate (17) clamps the middle thin-wall bearing (16) placed with semicircle clamping plate (20) by clamp stud (18), and anti-decylization (19) is set In clamp stud (18), clamp stud (18) is provided with the via for installing anti-decylization (19).

5. flexible precise thin-wall bearing failure diagnosis life test machine according to claim 4, it is characterised in that：Described Axial loading device include load driver device (23), load driver elliptical shaft (24), load bearings (25), loading axis (26), Load connecting rod (27), loading screw rod (28), loading support (29), loading spring (30), pressure sensing mounting seat (31), pressurizing block (33), lubrication oil outlet (34), loading bearing (35), current vortex mounting bracket (37), lubrication inlet nozzle (38), loading motor are installed Seat (40), loading axis mounting blocks (41), loading blocks mounting seat (42), lower oil groove shrouding (43) and finishing bathtray shrouding (44), it is described Loading bearing (35) be fixed on by T-bolt on platform floor (4), loading axis mounting blocks (41) left and right two pieces be symmetrically arranged at The top of bearing (35) is loaded, loading motor mounting seat (40) is located at the top of loading axis mounting blocks (41), locked by bolt It is fixed on through loading axis mounting blocks (41) on loading bearing (35), finishing bathtray shrouding (44) is located at before loading axis mounting blocks (41) Both sides are fastened with screw afterwards, and load driver device (23) is located at the top of loading motor mounting seat (40), load driver elliptical shaft (24) rolling bearing being provided with by two ends is fixed between loading bearing (35) and loading motor mounting seat (40), load bearings (25) one end of loading axis (26) is fixed on, loading axis (26) is located on loading axis mounting blocks (41), loading connecting rod (27) is with adding Carry axle (26) by loading the U-shaped hole set on connecting rod (27) to be connected, loading support (29) one end is fixed on loading bearing (35) on, the other end is connected with loading connecting rod (27) by pin, and loading screw rod (28) is located at one end of loading connecting rod (27), Loading spring (30) is located between pressure sensing mounting seat (31) and loading screw rod (28), and pressure sensing mounting seat (31), which is located at, to be added One end of spring (30) is carried, pressurizing block (33) is located on loading bearing (35) and positioned at the interior of loading blocks mounting seat (42) guide groove Portion, lower oil groove shrouding (43) is fixed on the front and rear sides of loading bearing (35), and loading blocks mounting seat (42) is bolted on The inside of bearing (35) is loaded, lubrication inlet nozzle (38) is located at the top of loading motor mounting seat (40), lubrication oil outlet (34) The lower section centre position of loading bearing (35) is located at, current vortex mounting bracket (37) is fixed on finishing bathtray shrouding (44), for pacifying Fill current vortex sensor (39), temperature sensor (61) and speed probe (62).

6. flexible precise thin-wall bearing failure diagnosis life test machine according to claim 5, it is characterised in that：Described Data acquisition device includes：Pressure sensor (32), acceleration transducer (36), current vortex sensor (39), temperature sensor (61), speed probe (62) and data acquisition unit (63), described pressure sensor (32), acceleration transducer (36), temperature Degree sensor (61), current vortex sensor (39) and speed probe (62) are separately mounted on axial loading device, and temperature is passed Sensor (61) is separately positioned on electro spindle (22) and near pressurizing block (33), data acquisition unit (63) is located at the side of frame, adopts Collect the data of each sensor.

7. flexible precise thin-wall bearing failure diagnosis life test machine according to claim 6, it is characterised in that：Described Hydraulic pressure and Pneumatic auxiliary device include：Main drive motor (45), radiating solenoid directional control valve (46), lubrication solenoid directional control valve (47), Lubricate pressure-reducing valve (48), cooling pressure-reducing valve (65), oil pipe (49), radiating motor (50), radiator fan (51), air pump (52), water Air filter (53), gas circuit solenoid directional control valve (54), appendix (55), oil return solenoid valve (56), filter (57), check valve (58), overflow valve (59) and fuel tank (60), described main drive motor (45), radiating solenoid directional control valve (46), lubrication electromagnetism are changed To valve (47), radiating motor (50), radiator fan (51), gas circuit solenoid directional control valve (54), oil return solenoid valve (56) and overflow valve (59) be arranged on the top of fuel tank (60), the oil-out of main drive motor (45) respectively with radiating solenoid directional control valve (46) and lubrication The oil inlet P of solenoid directional control valve (47) is connected, and radiating solenoid directional control valve (46) is connected respectively with lubrication solenoid directional control valve (47) Pressure-reducing valve (65) and lubrication pressure-reducing valve (48) are cooled down, the outlet of the cooling joint and cooling pressure-reducing valve (65) of electro spindle (22) passes through Oil pipe (49) is connected, and lubrication inlet nozzle (38) is connected with lubrication pressure-reducing valve (48) by oil pipe (49), main drive motor (45) overflow valve (59), radiating are provided between the oil inlet P of radiating solenoid directional control valve (46) and lubrication solenoid directional control valve (47) Fan (51) is connected with radiating motor (50), and the blowing mouth of air pump (52) is connected with the air inlet of aqueous vapor filter (53), The gas outlet of aqueous vapor filter (53) point two-way, is connected with gas circuit solenoid directional control valve (54) all the way, another road and oil return electromagnetism Valve (56) is connected, and gas circuit solenoid directional control valve (54) passes through appendix (55) and the clamping on electro spindle (22) and releasable joint phase Connection, oil return solenoid valve (56) is connected with the oil return opening B of lubrication solenoid directional control valve (47), and the lubrication in axial loading device goes out Oil nozzle (34) is connected by oil pipe (49) with the oil inlet end of check valve (58), and check valve (58) oil-out enters with filter (57) Oily end is connected, and filter (57) oil-out is connected with the gas outlet A of oil return solenoid valve (56).

8. a kind of flexible precise thin-wall bearing failure diagnosis life test machine according to claim 5, it is characterised in that：Institute Load driver elliptical shaft (24) in the axial loading device stated is provided with elliptical section, and the major axis of the elliptical section is longer than short axle 10-30mm；Annular oil groove, the annular oil are provided with the bottom edge of loading bearing (35) in described axial loading device Groove is connected with lubrication oil outlet (34)；The deep-slotted chip breaker of pressurizing block (33) in described axial loading device is circular configuration.

9. a kind of flexible precise thin-wall bearing failure diagnosis life test machine according to claim 3, it is characterised in that：Institute The endoporus determined when compact heap (9) closes up with dynamic compact heap (11) in the clamping tooling stated is oval structure, the fixture pallet (12) top is provided with circular positioning boss, internal diameter big 1-2mm of the diameter than thin-wall bearing (16) of the circular positioning boss.

10. a kind of flexible precise thin-wall bearing failure diagnosis life test machine according to claim 1, it is characterised in that： Described frame includes：Foot stool (1), support frame (2), panel (3), platform floor (4) and snubber block (5), described foot stool (1) The bottom of four support pin of support frame (2) is located at, the level for adjusting panel (3), the panel (3) is bolted On support frame (2), the snubber block (5) is located between panel (3) and platform floor (4), and the platform floor (4) is by adding Stay bolt is fastenedly connected with panel (3), and Lengthened bolt is lined with vibration isolation rubber.