CN201724818U - Accelerated rolling bearing fatigue life tester - Google Patents
Accelerated rolling bearing fatigue life tester Download PDFInfo
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- CN201724818U CN201724818U CN2010202536133U CN201020253613U CN201724818U CN 201724818 U CN201724818 U CN 201724818U CN 2010202536133 U CN2010202536133 U CN 2010202536133U CN 201020253613 U CN201020253613 U CN 201020253613U CN 201724818 U CN201724818 U CN 201724818U
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Abstract
An accelerated rolling bearing fatigue life tester comprises a main body device, a testing head device, a transmission shaft device, an axial loading device, a radial loading device, an axial loading block, an O-shaped ring a, an axial bearing block, a left coupling, a nylon rope, a right coupling, an auxiliary support bar, a speed measurement sensor, a support, a shield, a worktable, an O-shaped ring b, a synthetic glass cover and a synchronous belt, wherein a variable frequency motor transmits power to a synchronous pulley at the right end of the transmission shaft device through the transmission of the synchronous belt, drives the right coupling through the transmission shaft device, and drives the left coupling through the nylon rope, so as to drive a testing spindle to rotate; both the axial loading device and the radial loading device adopt membrane type oil cylinder structures; and a loading piston is propelled to exert axial or radial load on a bearing to be tested, and the magnitude of the axial or radial load is automatically controlled by a computer. The utility model has the advantages of simple structure and convenient assembly and disassembly, and provides favorable guarantees for the accelerated fatigue life test and failure analysis of a rolling bearing.
Description
Technical field
The utility model belongs to the bearing test equipment technical field, especially a kind of accelerated rolling bearing fatigue life tester.
Background technology
The bearing fatigue life strenuous test machine of present domestic use mostly is the bearing tester of the imitated U.S..When using this testing machine, for ease of mounting or dismounting test head, realize connecting by an intermediate propeller shaft between test main shaft and the transmission main shaft, intermediate propeller shaft one end connects by shaft coupling and transmission main shaft, and the other end of intermediate propeller shaft is by the interior cubic axis hole rigid attachment of little outer cubic end interface and test main shaft.
Because this equipment connects test main shaft and transmission shaft respectively by middle transmission square shaft, this rigid attachment structure is unfavorable for bearing realization high-speed test (HST), and cause easily that when high-speed test (HST) bearing produces bigger vibration, the vibration signal that is produced can not truly reflect the actual fatigue conditions of bearing, to survey the bearing fatigue life test data inaccurate.
Summary of the invention
For addressing the above problem, the utility model has designed a kind of accelerated rolling bearing fatigue life tester, and this strenuous test machine is simple in structure, and mounting or dismounting are convenient, for rolling bearing fatigue life strenuous test and failure analysis provide favourable assurance.
For achieving the above object, the utility model adopts following technical scheme:
Described a kind of accelerated rolling bearing fatigue life tester has comprised agent set, the test head unit, driveline, axial charger, the radial loaded device, axial loading blocks, O type circle a, the axial carrying piece, Left-wing Federation's joint, nylon rope, right shaft coupling, auxiliary support bar, tachogenerator, support, protective cover, worktable, O type circle b, plexiglass cover and synchronous band, wherein agent set is installed on the worktable, in agent set, dispose test head unit and quadruplet test bearing, the backend arrangement radial loaded device of agent set, the left end of agent set disposes axial charger, the right-hand member of agent set disposes driveline by O type circle b, the right-hand member cantilever end of driveline is supported on the worktable by the auxiliary support bar of adjustable height, driveline is driven by driving motor by synchronous band, dispose tachogenerator on the right-hand member end cantilever end of driveline, this tachogenerator is fixed on the support upper end, support is fixed on the worktable, the periphery of driveline is equipped with protective cover, the left end of driveline connects right shaft coupling, realize flexible the connection by nylon rope between right shaft coupling and the Left-wing Federation's joint, Left-wing Federation's joint connects with test main shaft in testing head unit; Install the axial carrying piece additional between right supporting body in the test head unit and the axial carrying liner plate in the agent set, install axial loading blocks additional between left supporting body in the test head unit and the axial loading liner plate in the agent set, axially the faying face of loading blocks and left supporting body is provided with O type circle a; Above agent set, dispose plexiglass cover.
Described a kind of accelerated rolling bearing fatigue life tester, agent set comprised axial load plate, substrate, axial carrying plate, radially loading plate, radial loaded plate, axially load liner plate, liner plate, axial carrying liner plate, radially carry liner plate and radial loaded liner plate, wherein substrate is seated on the worktable, upper surface at substrate connects liner plate, side, rear end at substrate connects the radial loaded plate, front end side at substrate connects radially loading plate, at the left end side coupling spindle of substrate to load plate, at the right-hand member side of substrate coupling spindle to loading plate; The centre position of radial loaded plate is provided with the shoulder hole that the radial loaded device is installed, near connecting the radial loaded liner plate on the radial loaded plate of side, substrate rear end; Axially the centre position of load plate is provided with the shoulder hole of installation shaft to charger, axially loads liner plate near connecting on the axial load plate of substrate left end side; The centre position of axial carrying plate is provided with the shoulder hole that driveline is installed, near axial carrying liner plate on the axial carrying plate of substrate right-hand member side; Axially load plate, axial carrying plate, radially loading plate and radial loaded plate surround the rectangle blocking test space that is used for the installation test head unit, and are radially disposing plexiglass cover in the common upper surface groove that constitutes of loading plate and radial loaded plate; The center line of axial load plate shoulder hole and the central lines of axial carrying board step hole, radially the vertical and intersectant centerline of the center line of the center line of loading plate shoulder hole and axial load plate shoulder hole or axial carrying board step hole is on same surface level.
Described a kind of accelerated rolling bearing fatigue life tester is tested head unit and has been comprised left supporting body, radial loaded body, right supporting body, nut a, test main shaft, left dottle pin, left side adjustment cover, middle adjustment cover, right adjustment cover and the right adjustment dottle pin adjusted; Axially loading blocks is seated in the last plane of substrate, on its right end face of axial loading blocks, O type circle a is set, axially its right end face of loading blocks holds out against left supporting body, in the supporting body inner groove of a left side left side is set and adjusts the dottle pin and first test bearing, the inner ring of first test bearing is installed on the test main shaft, on the test main shaft, second test bearing is installed successively also from left to right, the 3rd test bearing and the 4th test bearing, second test bearing and the 3rd test bearing are shared and be installed in the radial loaded body, the 4th test bearing and the right dottle pin of adjusting are installed in the right supporting body inner groove, right supporting body its right end face lifting axe is to carrier block, axial carrying piece its right end face leans against on the axial carrying liner plate, the right-hand member of test main shaft connects with Left-wing Federation joint, the left end of test main shaft is fixed by nut a, the inner ring of the inner ring of first test bearing and second test bearing by left side adjustment cover at interval, the inner ring of the inner ring of second test bearing and the 3rd test bearing is by middle adjustment cover interval, and the inner ring of the inner ring of the 3rd test bearing and the 4th test bearing by right side adjustment cover at interval; The radial loaded center line of radial loaded device and the symmetrical center line of radial loaded body are consistent.
Described a kind of accelerated rolling bearing fatigue life tester, driveline has comprised ring flange, screw a, transmission main shaft, spring bearing a, housing, cover a, spring bearing b, screw b, end cap, cover b, synchronous pulley, nut b and key, wherein ring flange is fixed in the shoulder hole of axial carrying plate by screw a, the faying face place, right angle of axial carrying plate and ring flange is provided with O type circle b, the housing left end is fixed on the step of ring flange by SOC.HD. cap screw, the housing right-hand member is fixed end cap by screw b, the endoporus coupling sleeve b of end cap, endoporus and the transmission main shaft external diameter of cover b cooperate, the high order end of transmission main shaft connects right shaft coupling, transmission main shaft stretches out outside the cover b and is connected to synchronous pulley by binding, synchronous pulley is fixed by nut b, the low order end socket tachogenerator of transmission main shaft; The transmission main shaft left end of configuration is equipped with two cover spring bearing a in the housing, the transmission main shaft right-hand member of configuration is equipped with two cover spring bearing b in the housing, the outer ring of two cover spring bearing a is spacing by the step of ring step and ring flange in the housing, and the outer rings of two cover spring bearing b in housing, encircle the step single face spacing its another side axially not spacing, then spacing between the inner ring of spring bearing a and spring bearing b by overlapping a.
Described a kind of rolling bearing is strengthened strenuous test fatigue lifetime machine, axially charger has comprised axial oil cylinder end cap, axial oil cylinder pressure chamber, axial oil cylinder rubber membrane, axial piston and axial piston cover, wherein the axial piston cover is installed in the shoulder hole of axial load plate, axial piston is arranged in the axial piston cover endoporus, the axial oil cylinder end cap under the sealing of axial oil cylinder rubber membrane by being bolted on the axial load plate; The axial oil cylinder end cap is the groove shape, forms axial oil cylinder pressure chamber between the groove of axial oil cylinder end cap and the axial piston, and axially the fuel feeding interface of oil cylinder pressure chamber is arranged on the axial oil cylinder end cap, and axially the oil cylinder pressure chamber is an enclosed cavity.
Described a kind of rolling bearing is strengthened strenuous test fatigue lifetime machine, the radial loaded device has comprised radial oil cylinders end cap, radial oil cylinders pressure chamber, radial oil cylinders rubber membrane, radial piston and radial piston cover, wherein the radial piston cover is installed in the shoulder hole of radial loaded plate, radial piston is arranged in the radial piston cover endoporus, the radial oil cylinders end cap under the sealing of radial oil cylinders rubber membrane by being bolted on the radial loaded plate; The radial oil cylinders end cap is the groove shape, forms the radial oil cylinders pressure chamber between the groove of radial oil cylinders end cap and the radial piston, and the fuel feeding interface of radial oil cylinders pressure chamber is arranged on the radial oil cylinders end cap, and the radial oil cylinders pressure chamber is an enclosed cavity.
Because adopt aforesaid technical scheme, the utility model produces following good effect:
1, testing machine of the present utility model can be tested the reinforcement fatigue life test of deep groove ball bearing, cylindrical roller bearing, angular contact ball bearing, taper roll bearing, self-aligning ball bearing, self-aligning roller bearing, needle bearing, thrust ball bearing and thrust roller bearing.
2, the utility model adopts the transmission that flexible clutch reverses, avoided the influence of coaxiality error between transmission main shaft and test main shaft, promoted the testing machine speed capability, the phase mutual interference that the while has also reduced vibration between axle system makes the test warning judge more true and accurate.
3, axial charger of the present utility model and radial loaded device adopt the diaphragm type cylinder structure, apply axially or radial load to test bearing by promoting to load piston, axially or the size of radial load by computer controlled automatic, safe and reliable.
4, driveline of the present utility model links to each other with drive motor by being with synchronously, and by the tachogenerator test speed, has constituted closed loop system of Variable Frequency.
5, the utility model is by the transparent plexiglass cover working order of viewing test bearing at any time.
6, the utility model is simple in structure, and mounting or dismounting are convenient, for rolling bearing fatigue life strenuous test and failure analysis provide a favorable guarantee.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cut-open view.
Among the above-mentioned figure: the 1-agent set; 1.1-axial load plate; 1.2-substrate; 1.3-axial carrying plate; 1.4-loading plate radially; 1.5-radial loaded plate; 1.6-axially load liner plate; 1.7-liner plate; 1.8-axial carrying liner plate; 1.9-radially carry liner plate; 1.10-radial loaded liner plate; 2-tests head unit; 2.1-left supporting body; 2.2-radial loaded body; 2.3-right supporting body; 2.4-nut a; 2.5-test main shaft; 2.6-dottle pin is adjusted on a left side; 2.7-cover is adjusted on a left side; 2.8-middle adjustment cover; 2.9-the right cover of adjusting; 2.10-the right dottle pin of adjusting; The 3-driveline; 3.1-ring flange; 3.2-screw a; 3.3-transmission main shaft; 3.4-spring bearing a; 3.5-housing; 3.6-cover a; 3.7-spring bearing b; 3.8-screw b; 3.9-end cap; 3.10-cover b; 3.11-synchronous pulley; 3.12-nut b; 3.13-key; The axial charger of 4-; 4.1-axial oil cylinder end cap; 4.2-axial oil cylinder pressure chamber; 4.3-axial oil cylinder rubber membrane; 4.4-axial piston; 4.5-axial piston cover; 5-radial loaded device; 5.1-radial oil cylinders end cap; 5.2.-radial oil cylinders pressure chamber; 5.3-radial oil cylinders rubber membrane; 5.4-radial piston; 5.5-radial piston cover; The axial loading blocks of 6-; 7O type circle a; 8-axial carrying piece; 9-Left-wing Federation joint; The 10-nylon rope; The right shaft coupling of 11-; The 12-auxiliary support bar; The 13-tachogenerator; The 14-support; The 15-protective cover; The 16-worktable; 17-O type circle b; The 18-plexiglass cover; The 19-test bearing; 20-is with synchronously.
Embodiment
In conjunction with Fig. 1-2, a kind of accelerated rolling bearing fatigue life tester of the present utility model has comprised agent set 1, test head unit 2, driveline 3, axial charger 4, radial loaded device 5, axial loading blocks 6, O type circle a 7, axial carrying piece 8, Left-wing Federation's joint 9, nylon rope 10, right shaft coupling 11, auxiliary support bar 12, tachogenerator 13, support 14, protective cover 15, worktable 16, O type circle b 17, plexiglass cover 18 and be with 20 synchronously, wherein agent set 1 is installed on the worktable 16, in agent set 1, dispose test head unit 2 and quadruplet test bearing 19, the backend arrangement radial loaded device 5 of agent set 1, the left end of agent set 1 disposes axial charger 4, the right-hand member of agent set 1 disposes driveline 3 by O type circle b17, the right-hand member cantilever end of driveline 3 is supported on the worktable 16 by the auxiliary support bar 12 of adjustable height, driveline 3 is by being with 20 to drive by driving motor synchronously, configuration tachogenerator 13 on the right-hand member end cantilever end of driveline 3, this tachogenerator 13 is fixed on support 14 upper ends, support 14 is fixed on the worktable 16, the periphery of driveline 3 is equipped with protective cover 15, the left end of driveline 3 connects right shaft coupling 11, realize flexible the connection by nylon rope 10 between right shaft coupling 11 and the Left-wing Federation's joint 9, Left-wing Federation's joint 9 connects with test main shaft 2.5 in testing head unit 2; Install axial carrying piece 8 additional between right supporting body 2.3 in the test head unit 2 and the axial carrying liner plate 1.8 in the agent set 1, install axial loading blocks 6 additional between left supporting body 2.1 in the test head unit 2 and the axial loading liner plate 1.6 in the agent set 1, axially the faying face of loading blocks 6 and left supporting body 2.1 is provided with O type circle a 7; Above agent set 1, dispose plexiglass cover 18.
The quadruplet test bearing has only used a label 19 in Fig. 1, this is because the on all four cause of gauge size of quadruplet test bearing, but convenient for the narration of structure, the quadruplet test bearing from left to right divided by the installation site of Fig. 1 and be subdivided into first test bearing, second test bearing, the 3rd test bearing and the 4th test bearing.
Agent set 1 has comprised axial load plate 1.1, substrate 1.2, axial carrying plate 1.3, radially loading plate 1.4, radial loaded plate 1.5, axially load liner plate 1.6, liner plate 1.7, axial carrying liner plate 1.8, radially carry liner plate 1.9 and radial loaded liner plate 1.10, wherein substrate 1.2 is seated on the worktable 16, upper surface at substrate 1.2 connects liner plate 1.7, side, rear end at substrate 1.2 connects radial loaded plate 1.5, connect radially loading plate 1.4 in the front end side of substrate 1.2, at the left end side coupling spindle of substrate 1.2 to load plate 1.1, at the right-hand member side of substrate 1.2 coupling spindle to loading plate 1.3; The centre position of radial loaded plate 1.5 is provided with the shoulder hole that radial loaded device 5 is installed, near connecting radial loaded liner plate 1.10 on the radial loaded plate 1.5 of side, substrate 1.2 rear end; Axially the centre position of load plate 1.1 is provided with the shoulder hole of installation shaft to charger 4, axially loads liner plate 1.6 near connecting on the axial load plate 1.1 of substrate 1.2 left end side; The centre position of axial carrying plate 1.3 is provided with the shoulder hole that driveline 3 is installed, near axial carrying liner plate 1.8 on the axial carrying plate 1.3 of substrate 1.2 right-hand member sides; Axially load plate 1.1, axial carrying plate 1.3, radially loading plate 1.4 and radial loaded plate 1.5 surround the rectangle blocking test space that is used for installation test head unit 2, and are radially disposing plexiglass cover 18 in loading plate 1.4 and the radial loaded plate 1.5 common upper surface grooves that constitute; The center line of axial load plate 1.1 shoulder holes and the central lines of axial carrying plate 1.3 shoulder holes, radially the vertical and intersectant centerline of the center line of the center line of loading plate 1.4 shoulder holes and axial load plate 1.1 shoulder holes or axial carrying plate 1.3 shoulder holes is on same surface level.
Test head unit 2 has comprised left supporting body 2.1, radial loaded body 2.2, right supporting body 2.3, nut a2.4, test main shaft 2.5, left side adjustment dottle pin 2.6, left cover 2.7, middle adjustment cover 2.8, right side adjustment cover 2.9 and the right dottle pin 2.10 of adjusting adjusted; Axially loading blocks 6 is seated in the last plane of substrate 1.2, on its right end face of axial loading blocks 6, O type circle a7 is set, axially its right end face of loading blocks 6 holds out against left supporting body 2.1, in supporting body 2.1 inner grooves of a left side left side is set and adjusts the dottle pin 2.6 and first test bearing 19, the inner ring of first test bearing 19 is installed on the test main shaft 2.5, on test main shaft 2.5, second test bearing 19 is installed successively also from left to right, the 3rd test bearing 19 and the 4th test bearing 19, second test bearing 19 and the 3rd test bearing 19 are shared and be installed in the radial loaded body 2.2, the 4th test bearing 19 and the right dottle pin 2.10 of adjusting are installed in right supporting body 2.3 inner grooves, right supporting body 2.3 its right end face lifting axes are to carrier block 8, axial carrying piece 8 its right end face lean against on the axial carrying liner plate 1.8, the right-hand member of test main shaft 2.5 connects with Left-wing Federation joint 9, the left end of test main shaft 2.5 is fixed by nut a2.4, the inner ring of the inner ring of first test bearing 19 and second test bearing 19 by left side adjustment cover 2.7 at interval, the inner ring of the inner ring of second test bearing 19 and the 3rd test bearing 19 is by middle adjustment cover 2.8 intervals, and the inner ring of the inner ring of the 3rd test bearing 19 and the 4th test bearing 19 by right side adjustment cover 2.9 at interval; The radial loaded center line of radial loaded device 5 and the symmetrical center line of radial loaded body 2.2 are consistent.
Driveline 3 has comprised ring flange 3.1, screw a3.2, transmission main shaft 3.3, spring bearing a3.4, housing 3.5, cover a3.6, spring bearing b3.7, screw b3.8, end cap 3.9, cover b3.10, synchronous pulley 3.11, nut b3.12 and key 3.13, wherein ring flange 3.1 is fixed in the shoulder hole of axial carrying plate 1.3 by screw a3.2, axial carrying plate 1.3 is provided with O type circle b17 with the faying face place, right angle of ring flange 3.1, housing 3.5 left ends are fixed on the step of ring flange 3.1 by SOC.HD. cap screw, housing 3.5 right-hand members are fixing with end cap 3.9 by screw b3.8, the endoporus coupling sleeve b3.10 of end cap 3.9, endoporus and transmission main shaft 3.3 external diameters of cover b3.10 cooperate, the high order end of transmission main shaft 3.3 connects right shaft coupling 11, transmission main shaft 3.3 stretches out outside the cover b3 and is connected with synchronous pulley 3.11 by key 3.13, synchronous pulley 3.11 is fixed by nut b3.12, the low order end socket tachogenerator 13 of transmission main shaft 3.3; Transmission main shaft 3.3 left ends of configuration are equipped with two cover spring bearing a3.4 in the housing 3.5, transmission main shaft 3.3 right-hand members of configuration are equipped with two cover spring bearing b3.7 in the housing 3.5, the outer ring of two cover spring bearing a3.4 is spacing by the step of ring step and ring flange 3.1 in the housing 3.5, and the outer ring of two cover spring bearing b3.7 its another side except that housing 3.5 interior ring step single faces are spacing is axially not spacing, and is then spacing by cover a3.6 between the inner ring of spring bearing a3.4 and spring bearing b3.7.
Axially charger 4 has comprised axial oil cylinder end cap 4.1, axially oil cylinder pressure chamber 4.2, axial oil cylinder rubber membrane 4.3, axial piston 4.4 and axial piston overlap 4.5, wherein axial piston cover 4.5 is installed in the shoulder hole of axial load plate 1.1, axial piston 4.4 is arranged on axial piston and overlaps in 4.5 endoporus, axial oil cylinder end cap 4.1 under the sealing of axial oil cylinder rubber membrane 4.3 by being bolted on the axial load plate 1.1; Axial oil cylinder end cap 4.1 is the groove shape, forms axial oil cylinder pressure chamber 4.2 between the groove of axial oil cylinder end cap 4.1 and the axial piston 4.4, and axially the fuel feeding interface of oil cylinder pressure chamber 4.2 is arranged on the axial oil cylinder end cap 4.1, and axially the oil cylinder pressure chamber is an enclosed cavity.
Radial loaded device 5 has comprised radial oil cylinders end cap 5.1, radial oil cylinders pressure chamber 5.2, radial oil cylinders rubber membrane 5.3, radial piston 5.4 and radial piston cover 5.5, wherein radial piston cover 5.5 is installed in the shoulder hole of radial loaded plate 1.5, radial piston 5.4 is arranged on radial piston and overlaps in 5.5 endoporus, radial oil cylinders end cap 5.1 under the sealing of radial oil cylinders rubber membrane 5.3 by being bolted on the radial loaded plate 1.5; Radial oil cylinders end cap 5.1 is the groove shape, forms radial oil cylinders pressure chamber 5.2 between the groove of radial oil cylinders end cap 5.1 and the radial piston 5.4, and the fuel feeding interface of radial oil cylinders pressure chamber 5.2 is arranged on the radial oil cylinders end cap 5.1, and the radial oil cylinders pressure chamber is an enclosed cavity.
Earlier axial loading blocks 6, O type circle a 7 and axial carrying piece 8 the latter halfs are put into trial body device 1 during test, at test main shaft 2.5 right-hand members of mounted test head unit 2 Left-wing Federation's joint 9 of packing into, to test head unit 2 and quadruplet test bearing 19 is put into trial body device 1 in the lump with specific purpose tool, connect nylon rope 10, then axial carrying piece 8 the first half and axial carrying piece 8 the latter halfs are fixed together.
The hydraulic oil by hydraulic system proportioning valve set pressure of exerting pressure of axial load enters in the axial charger 4 axially oil cylinder working-pressure chamber, promote axial piston 4.4 by axial oil cylinder rubber membrane 4.3 and produce certain thrust and microdisplacement, this thrust is delivered on the axial loading blocks 6, axially loading blocks 6 is delivered to thrust on the left supporting body 2.1 again, left side supporting body 2.1 is adjusted dottle pin 2.6 by a left side and thrust is delivered on the outer ring of first test bearing 19, first test bearing, 19 outer rings are delivered to thrust on the inner ring by rolling body, this inner ring is adjusted the inner ring of cover 2.7 and the left side second test bearing 19 by a left side, the middle inner ring of adjusting cover the 2.8 and the 3rd test bearing 19, thrust is delivered to the right cover 2.9 of adjusting, the right cover 2.9 adjusted is delivered to thrust on the 4th test bearing inner ring, adjusting dottle pin 2.10 by the right side again is delivered to power on the right supporting body 2.3, right supporting body 2.3 is delivered to thrust on the axial carrying liner plate 1.8 by axial carrying piece 8, and this thrust is born by axial carrying piece 8 at last.Generally speaking, owing to moving about in the outer ring of second test bearing and the 3rd test bearing, so second test bearing and the 3rd test bearing do not bear axial load.
The hydraulic oil by set pressure behind the hydraulic system proportioning valve of exerting pressure of radial load enters the radial oil cylinders pressure chamber in the radial loaded device 5, promote radial piston 5.4 by radial oil cylinders rubber membrane 5.3 and produce certain power, be applied on the radial loaded body 2.2, radial loaded body 2.2 is applied to thrust on the test main shaft 2.5 by second test bearing and the 3rd test bearing, test main shaft 2.5 is delivered to thrust on left supporting body 2.1 and the right supporting body 2.3 by first test bearing and the 4th test bearing that is installed in its two ends, on a left side supporting body 2.1 and the right supporting body 2.3 power is delivered to and radially carries on the liner plate 1.9, this power at last by in the trial body device 1 radially loading plate 1.4 bear.Radial loaded body 2.2 and radially carry liner plate 1.9 little clearance is arranged radially carries liner plate 1.9 and does not bear the power that is directly transmitted by radial loaded body 2.2.
Oil pressure in radial loaded device 5 and the axial charger 4 can be adjusted by hydraulic loading system proportional pressure-reducing valve and pressure transducer automatically according to the test load spectrum; adjust the pressure that finishes back radial oil cylinders pressure chamber and axial oil cylinder pressure chamber and enter packing state; at this moment, loading motor auto stop.Oil pressure overshoot value or loading spectrum as if radial oil cylinders pressure chamber or axial oil cylinder pressure chamber behind the long-play require to adjust pressure; loading motor restarts; proportional pressure-reducing valve and pressure transducer are adjusted pressure automatically, adjust and finish back loading motor auto stop.
Variable-frequency motor by band transmission synchronously with transmission of power to the synchronous pulley 3.11 of driveline 3 right-hand members, drive right shaft coupling 11 by driveline 3, drive Left-wing Federation's joint 9 again by nylon rope 10 then, thereby drive 2.5 rotations of test main shaft.
The utility model is simple in structure, and mounting or dismounting are convenient.Being flexible coupling by shaft coupling has promoted speed capability, has reduced the interference of vibration signal, has improved the decision-making ability of vibration alarming.Adopt the adjustable pressurize technology of load, realized the automatic loading and the energy savings of load.Span between first test bearing and the 4th test bearing is short as far as possible, can increase the rigidity of test main shaft like this, simultaneously because the increase of test main shaft rigidity, the radial load that second test bearing and the 3rd test bearing are applied can strengthen, the radial load that first test bearing and the 4th test bearing bear becomes big thereupon, thereby reach the fatigue life test purpose of strengthening rolling bearing, moreover cube being inversely proportional to of the test period of rolling bearing fatigue life and its suffered radial load, in other words, cube (one of the suffered radial load of rolling bearing, two, four until Nth power) big more, the test period of rolling bearing fatigue life is just short more, and because the test period weak point has then greatly improved test efficiency of the present utility model.Can carry out the test of all types of bearings by changing test head unit frock, versatility is good.Improved the strenuous test ability of China's rolling bearing fatigue life, satisfied industry, will bring considerable economic results in society for this reason this technology requirement.
Claims (6)
1. accelerated rolling bearing fatigue life tester, it is characterized in that: this testing machine has comprised agent set (1), test head unit (2), driveline (3), axial charger (4), radial loaded device (5), axial loading blocks (6), O type circle a (7), axial carrying piece (8), Left-wing Federation's joint (9), nylon rope (10), right shaft coupling (11), auxiliary support bar (12), tachogenerator (13), support (14), protective cover (15), worktable (16), O type circle b (17), plexiglass cover (18) and synchronous band (20), wherein agent set (1) is installed on the worktable (16), in agent set (1), dispose test head unit (2) and quadruplet test bearing (19), the backend arrangement radial loaded device (5) of agent set (1), the left end of agent set (1) disposes axial charger (4), the right-hand member of agent set (1) disposes driveline (3) by O type circle b (17), the right-hand member cantilever end of driveline (3) is supported on the worktable (16) by the auxiliary support bar (12) of adjustable height, driveline (3) is driven by driving motor by synchronous band (20), dispose tachogenerator (13) on the right-hand member end cantilever end of driveline (3), this tachogenerator (13) is fixed on support (14) upper end, support (14) is fixed on the worktable (16), the periphery of driveline (3) is equipped with protective cover (15), the left end of driveline (3) connects right shaft coupling (11), realize flexible the connection by nylon rope (10) between right shaft coupling (11) and the Left-wing Federation's joint (9), Left-wing Federation's joint (9) connects with test main shaft (2.5) in testing head unit (2); Install axial carrying piece (8) additional between right supporting body (2.3) in the test head unit (2) and the axial carrying liner plate (1.8) in the agent set (1), install axial loading blocks (6) additional between left supporting body (2.1) in the test head unit (2) and the axial loading liner plate (1.6) in the agent set (1), axially the faying face of loading blocks (6) and left supporting body (2.1) is provided with O type circle a (7); Dispose plexiglass cover (18) in the top of agent set (1).
2. a kind of accelerated rolling bearing fatigue life tester as claimed in claim 1, it is characterized in that: agent set (1) has comprised axial load plate (1.1), substrate (1.2), axial carrying plate (1.3), loading plate (1.4) radially, radial loaded plate (1.5), axially load liner plate (1.6), liner plate (1.7), axial carrying liner plate (1.8), radially carry liner plate (1.9) and radial loaded liner plate (1.10), wherein substrate (1.2) is seated on the worktable (16), upper surface at substrate (1.2) connects liner plate (1.7), side, rear end at substrate (1.2) connects radial loaded plate (1.5), connect radially loading plate (1.4) in the front end side of substrate (1.2), at the left end side coupling spindle of substrate (1.2) to load plate (1.1), at the right-hand member side of substrate (1.2) coupling spindle to loading plate (1.3); The centre position of radial loaded plate (1.5) is provided with the shoulder hole that radial loaded device (5) is installed, and goes up near the radial loaded plate (1.5) of substrate (1.2) side, rear end to connect radial loaded liner plate (1.10); Axially the centre position of load plate (1.1) is provided with the shoulder hole of installation shaft to charger (4), and the axial load plate (1.1) of close substrate (1.2) left end side goes up to connect and axially loads liner plate (1.6); The centre position of axial carrying plate (1.3) is provided with the shoulder hole that driveline (3) is installed, and goes up axial carrying liner plate (1.8) near the axial carrying plate (1.3) of substrate (1.2) right-hand member side; Axially load plate (1.1), axial carrying plate (1.3), radially loading plate (1.4) and radial loaded plate (1.5) surround the rectangle blocking test space that is used for installation test head unit (2), and are disposing plexiglass cover (18) in the upper surface groove of formation jointly at radially loading plate (1.4) and radial loaded plate (1.5); The center line of axial load plate (1.1) shoulder hole and the central lines of axial carrying plate (1.3) shoulder hole, radially the vertical and intersectant centerline of the center line of the center line of loading plate (1.4) shoulder hole and axial load plate (1.1) shoulder hole or axial carrying plate (1.3) shoulder hole is on same surface level.
3. a kind of accelerated rolling bearing fatigue life tester as claimed in claim 1 is characterized in that: test head unit (2) has comprised that dottle pin (2.6) is adjusted on left supporting body (2.1), radial loaded body (2.2), right supporting body (2.3), nut a (2.4), test main shaft (2.5), a left side, cover (2.7), middle adjustment cover (2.8), right cover (2.9) and the right adjustment dottle pin (2.10) adjusted are adjusted in a left side; Axially loading blocks (6) is seated in the last plane of substrate (1.2), on its right end face of axial loading blocks (6), O type circle a (7) is set, axially its right end face of loading blocks (6) holds out against left supporting body (2.1), in supporting body (2.1) inner groove of a left side left side is set and adjusts dottle pin (2.6) and first test bearing (19), the inner ring of first test bearing (19) is installed on the test main shaft (2.5), on test main shaft (2.5), second test bearing (19) is installed successively also from left to right, the 3rd test bearing (19) and the 4th test bearing (19), second test bearing (19) and the 3rd test bearing (19) are shared and be installed in the radial loaded body (2.2), the 4th test bearing (19) and the right dottle pin (2.10) of adjusting are installed in right supporting body (2.3) inner groove, right supporting body (2.3) its right end face lifting axe is to carrier block (8), axial carrying piece (8) its right end face leans against on the axial carrying liner plate (1.8), the right-hand member of test main shaft (2.5) connects with Left-wing Federation's joint (9), the left end of test main shaft (2.5) is fixing by nut a (2.4), the inner ring of the inner ring of first test bearing (19) and second test bearing (19) by left side adjustment cover (2.7) at interval, the inner ring of the inner ring of second test bearing (19) and the 3rd test bearing (19) by middle adjustment cover (2.8) at interval, the inner ring of the inner ring of the 3rd test bearing (19) and the 4th test bearing (19) is by right side adjustment cover (2.9) at interval; The symmetrical center line of the radial loaded center line of radial loaded device (5) and radial loaded body (2.2) is consistent.
4. a kind of accelerated rolling bearing fatigue life tester as claimed in claim 1, it is characterized in that: driveline (3) has comprised ring flange (3.1), screw a (3.2), transmission main shaft (3.3), spring bearing a (3.4), housing (3.5), cover a (3.6), spring bearing b (3.7), screw b (3.8), end cap (3.9), cover b (3.10), synchronous pulley (3.11), nut b (3.12) and key (3.13), wherein ring flange (3.1) is fixed in the shoulder hole of axial carrying plate (1.3) by screw a (3.2), axial carrying plate (1.3) is provided with O type circle b (17) with the faying face place, right angle of ring flange (3.1), housing (3.5) left end is fixed on the step of ring flange (3.1) by SOC.HD. cap screw, housing (3.5) right-hand member is fixing with end cap (3.9) by screw b (3.8), the endoporus coupling sleeve b (3.10) of end cap (3.9), the endoporus of cover b (3.10) and transmission main shaft (3.3) external diameter cooperate, the high order end of transmission main shaft (3.3) connects right shaft coupling (11), transmission main shaft (3.3) stretches out outside the cover b (3) and is connected with synchronous pulley (3.11) by key (3.13), synchronous pulley (3.11) is fixing by nut b (3.12), the low order end socket tachogenerator (13) of transmission main shaft (3.3); Transmission main shaft (3.3) left end of configuration is equipped with two cover spring bearing a (3.4) in the housing (3.5), transmission main shaft (3.3) right-hand member of configuration is equipped with two cover spring bearing b (3.7) in the housing (3.5), the outer ring of two cover spring bearing a (3.4) is spacing by the step of ring step and ring flange (3.1) in the housing (3.5), and the outer ring of two cover spring bearing b (3.7) its another side except that ring step single face in the housing (3.5) is spacing is axially not spacing, and is then spacing by cover a (3.6) between the inner ring of spring bearing a (3.4) and spring bearing b (3.7).
5. a kind of accelerated rolling bearing fatigue life tester as claimed in claim 1, it is characterized in that: axially charger (4) has comprised axial oil cylinder end cap (4.1), axial oil cylinder pressure chamber (4.2), axial oil cylinder rubber membrane (4.3), axial piston (4.4) and axial piston cover (4.5), wherein axial piston cover (4.5) is installed in the shoulder hole of axial load plate (1.1), axial piston (4.4) is arranged in axial piston cover (4.5) endoporus, axial oil cylinder end cap (4.1) under the sealing of axial oil cylinder rubber membrane (4.3) by being bolted on the axial load plate (1.1); Axial oil cylinder end cap (4.1) is the groove shape, form axial oil cylinder pressure chamber (4.2) between the groove of axial oil cylinder end cap (4.1) and the axial piston (4.4), axially the fuel feeding interface of oil cylinder pressure chamber (4.2) is arranged on the axial oil cylinder end cap (4.1), and axially the oil cylinder pressure chamber is an enclosed cavity.
6. a kind of accelerated rolling bearing fatigue life tester as claimed in claim 1, it is characterized in that: radial loaded device (5) has comprised radial oil cylinders end cap (5.1), radial oil cylinders pressure chamber (5.2), radial oil cylinders rubber membrane (5.3), radial piston (5.4) and radial piston cover (5.5), wherein radial piston cover (5.5) is installed in the shoulder hole of radial loaded plate (1.5), radial piston (5.4) is arranged in radial piston cover (5.5) endoporus, radial oil cylinders end cap (5.1) under the sealing of radial oil cylinders rubber membrane (5.3) by being bolted on the radial loaded plate (1.5); Radial oil cylinders end cap (5.1) is the groove shape, form radial oil cylinders pressure chamber (5.2) between the groove of radial oil cylinders end cap (5.1) and the radial piston (5.4), the fuel feeding interface of radial oil cylinders pressure chamber (5.2) is arranged on the radial oil cylinders end cap (5.1), and the radial oil cylinders pressure chamber is an enclosed cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202536133U CN201724818U (en) | 2010-07-12 | 2010-07-12 | Accelerated rolling bearing fatigue life tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202536133U CN201724818U (en) | 2010-07-12 | 2010-07-12 | Accelerated rolling bearing fatigue life tester |
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| CN201724818U true CN201724818U (en) | 2011-01-26 |
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| CN2010202536133U Expired - Fee Related CN201724818U (en) | 2010-07-12 | 2010-07-12 | Accelerated rolling bearing fatigue life tester |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102252807A (en) * | 2011-06-16 | 2011-11-23 | 浙江大学 | Testing stand device for sealing performance of high-speed and heavy-duty bearings |
| CN102426097A (en) * | 2011-08-09 | 2012-04-25 | 吉林大学 | Dynamic loading device for high-speed motorized spindle |
| CN102445344A (en) * | 2011-12-26 | 2012-05-09 | 瓦房店轴承集团有限责任公司 | Heavy axle load railway bearing tester |
| CN102527743A (en) * | 2011-12-30 | 2012-07-04 | 上海市轴承技术研究所 | Online real-time torque detection and control system for self-lubricating spherical plain bearings and method thereof |
| CN102889991A (en) * | 2012-10-26 | 2013-01-23 | 浙江大学 | Bearing axially-symmetric loading mechanism of high speed railway |
| CN104913933A (en) * | 2015-05-19 | 2015-09-16 | 昆明理工大学 | Heavy load rolling bearing accelerated fatigue test device |
| CN106706317A (en) * | 2016-12-26 | 2017-05-24 | 河南科技大学 | Radial loading device for bearing tester |
| CN106769035A (en) * | 2016-12-02 | 2017-05-31 | 安徽大学 | A kind of small size bearing life-span strenuous test device |
| CN111256996A (en) * | 2020-04-11 | 2020-06-09 | 长江大学 | Fatigue life experimental device for combined bearing |
| CN113029568A (en) * | 2021-03-08 | 2021-06-25 | 广东石油化工学院 | Bearing life testing system and method |
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| CN102252807A (en) * | 2011-06-16 | 2011-11-23 | 浙江大学 | Testing stand device for sealing performance of high-speed and heavy-duty bearings |
| CN102252807B (en) * | 2011-06-16 | 2013-02-13 | 浙江大学 | Testing stand device for sealing performance of high-speed and heavy-duty bearings |
| CN102426097A (en) * | 2011-08-09 | 2012-04-25 | 吉林大学 | Dynamic loading device for high-speed motorized spindle |
| CN102426097B (en) * | 2011-08-09 | 2013-10-30 | 吉林大学 | Dynamic loading device for high-speed motorized spindle |
| CN102445344A (en) * | 2011-12-26 | 2012-05-09 | 瓦房店轴承集团有限责任公司 | Heavy axle load railway bearing tester |
| CN102445344B (en) * | 2011-12-26 | 2014-04-02 | 瓦房店轴承集团有限责任公司 | Heavy axle load railway bearing tester |
| CN102527743A (en) * | 2011-12-30 | 2012-07-04 | 上海市轴承技术研究所 | Online real-time torque detection and control system for self-lubricating spherical plain bearings and method thereof |
| CN102527743B (en) * | 2011-12-30 | 2014-12-10 | 上海市轴承技术研究所 | Online real-time torque detection and control system for self-lubricating spherical plain bearings and method thereof |
| CN102889991A (en) * | 2012-10-26 | 2013-01-23 | 浙江大学 | Bearing axially-symmetric loading mechanism of high speed railway |
| CN102889991B (en) * | 2012-10-26 | 2014-04-09 | 浙江大学 | Bearing axially-symmetric loading mechanism of high speed railway |
| CN104913933A (en) * | 2015-05-19 | 2015-09-16 | 昆明理工大学 | Heavy load rolling bearing accelerated fatigue test device |
| CN106769035A (en) * | 2016-12-02 | 2017-05-31 | 安徽大学 | A kind of small size bearing life-span strenuous test device |
| CN106769035B (en) * | 2016-12-02 | 2018-07-10 | 合肥磐石自动化科技有限公司 | A kind of small size bearing service life strenuous test device |
| CN106706317A (en) * | 2016-12-26 | 2017-05-24 | 河南科技大学 | Radial loading device for bearing tester |
| CN106706317B (en) * | 2016-12-26 | 2023-04-07 | 河南科技大学 | Radial loading device for bearing tester |
| CN111256996A (en) * | 2020-04-11 | 2020-06-09 | 长江大学 | Fatigue life experimental device for combined bearing |
| CN111256996B (en) * | 2020-04-11 | 2024-05-31 | 长江大学 | Combined bearing fatigue life experimental device |
| CN113029568A (en) * | 2021-03-08 | 2021-06-25 | 广东石油化工学院 | Bearing life testing system and method |
| CN113029568B (en) * | 2021-03-08 | 2023-10-20 | 广东石油化工学院 | Bearing life test system and method |
| CN114136615A (en) * | 2021-11-26 | 2022-03-04 | 中国航发哈尔滨轴承有限公司 | Bearing testing machine |
| CN114136615B (en) * | 2021-11-26 | 2024-02-27 | 中国航发哈尔滨轴承有限公司 | Bearing testing machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20130712 |