CN109612615A - The test device of automobile hub bearing load friction torque - Google Patents
The test device of automobile hub bearing load friction torque Download PDFInfo
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- CN109612615A CN109612615A CN201811581407.2A CN201811581407A CN109612615A CN 109612615 A CN109612615 A CN 109612615A CN 201811581407 A CN201811581407 A CN 201811581407A CN 109612615 A CN109612615 A CN 109612615A
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 238000005303 weighing Methods 0.000 claims description 11
- 238000013461 design Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of test devices of automobile hub bearing load friction torque, including bearing tooling to be measured, drive the driving assembly of bearing to be measured, radial load component, for detecting the detection piece and axial load component of moment of friction, the driving component includes driving motor, mandrel, radial air-bearing, axial air-bearing, axial bearing seat and mandrel seat, axial bearing seat and bearing tooling to be measured are connected to the both ends of mandrel, axial air-bearing is arranged on axial bearing seat, mandrel seat is wrapped on the outside of the surrounding of mandrel, radial air-bearing is between mandrel and mandrel seat, driving motor passes through the shaft coupling being disposed there between with mandrel and torque sensor connect and constitutes linkage and is arranged, torque sensor constitutes the detection piece, the side of the bearing tooling to be measured is provided with load connector, it is radial Load components and axial load component are connect with load connector, and load connector is connect with bearing tooling to be measured by bearing to be measured.
Description
Technical field
The present invention relates to bearing the field of test technology, the test of especially a kind of automobile hub bearing load friction torque is filled
It sets.
Background technique
Currently, the moment of friction of automobile hub bearing is the components being affected to vehicle energy-efficient performance, previous wheel hub
The not load-carrying moment of friction detection method of bearing can not embody moment of friction variation of the hub bearing in vehicle carrying traveling
Situation, so needing a kind of load-carrying test device.
In the prior art, drive shaft, radial load component and the use of experiment bearing tooling, driving experiment bearing are generally comprised
In the detection piece of detection moment of friction, the inner ring of test bearing is installed on the driving shaft, the shell of outer ring and experiment bearing tooling
The radial load of connection, bearing pushes the lower plate connecting with radial load sensor by radial loaded cylinder, fills on lower plate
There is air bearing block and upper plate is driven to exert a force on tooling shell；Upper plate and the coefficient of friction that air bearing block indirection is touched are much small
In the coefficient of friction of hub-bearing unit, when drive shaft (bearing inner race) rotates, bearing roller, sealing ring frictional force by band
The dynamic outer ring (outward flange) being mounted on tooling envelope outer diameter rotates together, there is arm of force bracing wire attachment force sensing on tooling shell
Device, the size of measuring force calculate moment of friction according to the arm of force.
The above-mentioned prior art has the following disadvantages, 1) axial load cannot be applied；2) tooling shell is connect with bearing outer ring
Coaxiality error will affect measurement result；3) tooling shell and upper plate contact position, because of the modeling of contact resilient deformation or generation
Property deformation will reduce measurement sensitivity and precision；4) tooling housing diameter and wheel diameter are unequal, when applying radial load
The axial thrust load (moment of flexure) of generation is different from bearing actual condition, it cannot be guaranteed that real simulation.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of tests of automobile hub bearing load friction torque
Device can apply radial load but also apply axial load, and the accurate automobile hub bearing that measures simulates operating condition lower hub
The characteristic of bearing frictional torque, reasonable tool structure design, so that replacement product type is convenient, fast.
To achieve the goals above, the technical solution adopted by the present invention is that: a kind of automobile hub bearing load friction torque
Test device, including bearing tooling to be measured, the driving assembly of driving bearing to be measured, radial load component and for detecting friction
The detection piece of torque, further includes axial load component, and the driving component includes driving motor, mandrel, radial air-bearing, axis
To air-bearing, axial bearing seat and mandrel seat, axial bearing seat and bearing tooling to be measured are connected to the both ends of mandrel, axis
It is arranged on axial bearing seat to air-bearing, mandrel seat is wrapped on the outside of the surrounding of mandrel, and radial air-bearing is located at mandrel
Between mandrel seat, driving motor is connect by the shaft coupling and torque sensor being disposed there between with mandrel and constitutes connection
Dynamic setting, torque sensor constitute the detection piece, and the side of the bearing tooling to be measured is provided with load connector, radial
Load components and axial load component are connect with load connector, and load connector and bearing tooling to be measured pass through bearing to be measured
Connection.
In above-mentioned technical proposal, the inner ring of bearing to be measured is connect by bearing tooling to be measured with mandrel, outside bearing to be measured
Circle is connect with load connector, and radial load component and axial load component are connect with load connector, radial load component
Load is applied to bearing to be measured by load connector with axial load component, mandrel seat is wrapped on the outside of the surrounding of mandrel, is used
It is supported in the radial direction of fixed radial air-bearing, mandrel by radial air-bearing, it is axial to be supported by axial air-bearing, mandrel
Organic block is arranged in lower section, and for installing all parts, mandrel seat is mountable on the base, driving motor, shaft coupling, torque sensing
Device and mandrel are sequentially connected, and driving motor band moving mandrel rotates, and mandrel drives the inner ring of bearing to be measured to rotate, due to air-bearing
Coefficient of friction very little, the additional moment of generation can be ignored, therefore the moment of friction of bearing to be measured can directly pass through mandrel quilt
Torque sensor measures, and overcomes the shortcomings that can only applying radial load in the prior art, and there are also tooling shells in the prior art
It will affect measurement result, tooling shell and upper plate contact position with bearing outer ring connection coaxiality error to be measured, because of contact bullet
Property deformation or the plastic deformation that generates will reduce the sensitivity and precision of measurement, the design overcomes the various of the prior art completely
Defect, overall design is structurally reasonable, and the work that can simulate bearing to be measured is live, detects more accurate.
As the further setting of the present invention, the radial direction air-bearing is arc air-bearing, and axial air-bearing is
Plane air-bearing.
In above-mentioned technical proposal, arc air-bearing is bonded with the outer peripheral surface of mandrel, and axial air-bearing is arranged in axial direction
On bearing block, additional force of the mandrel on radial and axial is reduced, the moment of friction detection for influencing bearing to be measured is avoided, improves inspection
Survey precision.
As the further setting of the present invention, the axial direction air-bearing is separately positioned on axial bearing seat towards driving electricity
Axial air-bearing group is constituted in the both ends of the surface of machine and mandrel, at least provided with two groups of axial direction air-bearings on axial bearing seat
Group, the radial direction air-bearing at least two are uniformly distributed the radial air-bearing group of composition along the circumferential direction of mandrel, mandrel up to
It is provided with two groups of radial direction air-bearing groups less.
In above-mentioned technical proposal, the two sides of axial bearing seat is arranged in axial air-bearing, preferred radial direction air-bearing
It is two groups, every group includes four radial air-bearings, and axial air-bearing is two groups, and every group includes two axial air-bearings
To allow mandrel to bear radial direction and bi-directional axial load, design rationally, improves detection accuracy.
As the further setting of the present invention, the axial load component includes axially loaded cylinder, spoke type weighing and sensing
Device, axially loaded seat and axially loaded arm, axially loaded cylinder are connect with spoke type weighing sensor, spoke type weighing sensor with
Axially loaded seat is connected by sensor connecting piece, and axially loaded seat is connect with load connector by axially loaded arm.
In above-mentioned technical proposal, structure is simple, facilitates connection and load, keeps the transmitting of power more acurrate.
As the further setting of the present invention, connecting shaft, connecting shaft and axis are equipped on one end of the axially loaded seat
It is provided with oscillating bearing between load seat, the inner ring and outer ring of oscillating bearing is matched with connecting shaft and axially loaded seat interference respectively
It closes, one end of the sensor connecting piece is connect with spoke type weighing sensor, is provided on the other end for connecting shaft erection
Two notches, the correspondence two sides of sensor connecting piece are provided with the pressing plate for preventing connecting shaft abjection notch.
In above-mentioned technical proposal, the inside and outside circle of oscillating bearing is connected with connecting shaft and axially loaded seat interference fit respectively
To eliminate gap, when installation, the both ends of connecting shaft is placed in notch, then prevent connecting shaft from taking off from notch using pressing plate
Out, this design eliminates oscillating bearings to install gap, can eliminate the vibration due to caused by gap, and improve the control of testing machine
Precision, fill, tear open it is more convenient.
As the further setting of the present invention, the press plate rotary is arranged on sensor connecting piece, and two pressing plates are by wearing
The hinged axis connection being located on sensor connecting piece is provided with annular groove, ring at position corresponding with pressing plate on the articulated shaft
It is arranged with the retaining ring for preventing pressing plate from deviating from articulated shaft on shape slot, the rotational angle of limitation pressing plate is additionally provided on sensor connecting piece
Adjusting bolt.
In above-mentioned technical proposal, pressing plate is rotatably assorted with sensor connecting piece, and the setting of retaining ring can prevent pressing plate along hinged
The axial abjection of axis, the end for adjusting bolt abuts the rotational angle of limitation pressing plate with pressing plate, when adjusting bolt is tightened, pressing plate and
Connecting shaft abuts, and connecting shaft is avoided to drop out from notch, and notch can be the semi-circular recesses being adapted to connecting shaft, when needs are torn open
When unloading, unscrew adjusting bolt, rotate pressing plate, connecting shaft is facilitated to dismantle, structure is simple, easy for installation.
As the further setting of the present invention, the pressing plate is located at the circumferential side of connecting shaft, and pressing plate is towards connecting shaft
Cavity compatible with connecting shaft is provided on side, the inner wall of cavity can be abutted with the end face of connecting shaft and top circumferential surface, recessed
The holding chamber placed for connecting shaft is formed between the inner wall of chamber and the inner wall of notch.
In above-mentioned technical proposal, adjusting bolt is unscrewed, connecting shaft is put into the notch of sensor connecting piece, is then screwed
Adjusting bolt, is located at cavity in connecting shaft, stable connection, and structure is simple.
As the further setting of the present invention, at least two strip-shaped holes are provided on the other end of the axially loaded seat,
In being symmetrically vertically arranged, the axially loaded seat and axially loaded arm are connected two strip-shaped holes by the screw being threaded through in strip-shaped hole
It connects, screw can be along strip-shaped hole guiding movement.
In above-mentioned technical proposal, the setting of strip-shaped hole is to be adjusted between axially loaded seat and axially loaded arm for convenience
Relative position after being moved to the position of needs, is fixed by screw tightening, and axial load component is avoided to apply load connector
Radial additional force, keeps detection accuracy higher.
As the further setting of the present invention, adjusting screw rod, one end of adjusting screw rod are connected on the axially loaded seat
It is threadedly coupled with axially loaded seat, the other end passes through the block being fixed on axially loaded arm and forms turning end, sets in turning end
Two bulge loops are equipped with, the two sides up and down that two bulge loops are located at block are realized that the axial limiting of adjusting screw rod and block cooperates, adjusted
The rotation drivable shaft of screw rod is to load seat along strip-shaped hole guiding movement.
In above-mentioned technical proposal, the setting of adjusting screw rod is the position for adjusting axially loaded seat for convenience, block and tune
Section screw shaped is circumferentially rotatably assorted to be cooperated with axial limiting, and easy to adjust using the separate of screw rod, structure is simple.
As the further setting of the present invention, the load connector includes the upper connector connecting with radial load component
The lower connector connecting with axial load component, upper connector and lower connector are hingedly arranged, the upper connector or lower company
The connecting plate connecting with the outer ring of bearing to be measured is connected on junctor, connecting plate constitutes removable with upper connector or lower connector
Connection.
In above-mentioned technical proposal, upper connector can be relatively rotated with lower connector, and connector is in hollow setting, this sample prescription
Just the installation of bearing to be measured, when installation, bearing to be measured passes through the hollow cavity of connector, makes its inner ring and bearing work load to be measured
It connects, then connecting plate is connect by screw with the outer ring of bearing to be measured, and connecting plate passes through screw again and connect with lower connector, is realized
The purpose that connector is connect with the outer ring of bearing to be measured, structure is simple, saves assembly time, improves detection efficiency.
The invention will be further described below in conjunction with the accompanying drawings.
Detailed description of the invention
Attached drawing 1 is specific embodiment of the invention partial structural diagram；
Attached drawing 2 is specific embodiment of the invention structural side view；
Attached drawing 3 is the A-A cross-sectional view of attached drawing 2；
Attached drawing 4 is the local structural graph of specific embodiment of the invention axial load component；
Attached drawing 5 is the structural exploded view of the axially loaded seat of the specific embodiment of the invention；
Attached drawing 6 is the structural exploded view of specific embodiment of the invention sensor connecting piece；
Attached drawing 7 is the local structural graph of specific embodiment of the invention axial load component.
Specific embodiment
Specific embodiments of the present invention as shown in figs. 1-7, a kind of test device of automobile hub bearing load friction torque,
Including bearing tooling 1 to be measured, the driving assembly 2 of driving bearing to be measured, radial load component 3 and inspection for detecting moment of friction
Survey part 4, further include axial load component 5, the driving component 2 include driving motor 21, mandrel 22, radial air-bearing 23,
Axial air-bearing 24, axial bearing seat 25 and mandrel seat 26, axial bearing seat 25 and bearing tooling 1 to be measured are connected to core
The both ends of axis 22, axial air-bearing 24 are arranged on axial bearing seat 25, and mandrel seat 26 is wrapped on the outside of the surrounding of mandrel 22,
Between mandrel 22 and mandrel seat 26, driving motor 21 and mandrel 22 pass through to be disposed there between radial air-bearing 23
Shaft coupling 27 and torque sensor 4 connect and constitute linkage setting, and torque sensor 4 constitutes the detection piece 4, described to be measured
The side of bearing tooling 1 is provided with load connector 6, radial load component 3 and axial load component 5 with load connector 6
Connection, load connector 6 are connect with bearing tooling 1 to be measured by bearing to be measured.The inner ring of bearing to be measured passes through bearing work to be measured
It fills 1 to connect with mandrel 22, the outer ring of bearing to be measured is connect with load connector 6, radial load component 3 and axial load component 5
It is connect with load connector 6, radial load component 3 and axial load component 5 apply bearing to be measured by load connector 6
Load, mandrel seat 26 are wrapped on the outside of the surrounding of mandrel 22, are used for fixed radial air-bearing 23, the radial direction of mandrel 22 is by radial direction
Air-bearing 23 supports, axial to be supported by axial air-bearing 24, and organic block 01 is arranged in the lower section of mandrel 22, each for installing
Component, mandrel seat 26 is mountable on the base, and driving motor 21, shaft coupling 27, torque sensor 4 and mandrel 22 are sequentially connected,
Driving motor 21 is rotated with moving mandrel 22, and mandrel 22 drives the inner ring of bearing to be measured to rotate, due to the coefficient of friction of air-bearing
The additional moment of very little, generation can be ignored, therefore the moment of friction of bearing to be measured can be directly by mandrel 22 by torque sensing
Device 4 measures, and overcomes the shortcomings that can only applying radial load in the prior art, and there are also tooling shell in the prior art and axis to be measured
Bearing outer-ring connection coaxiality error will affect measurement result, tooling shell and upper plate contact position because contact resilient deformation or
The plastic deformation of generation will reduce the sensitivity and precision of measurement, and the design overcomes many disadvantages of the prior art completely, whole
Machine design structure is reasonable, and the work that can simulate bearing to be measured is live, detects more accurate.
Above-mentioned radial direction air-bearing 23 is arc air-bearing, and axial air-bearing 24 is plane air-bearing.Arc gas
Floating axle is held to be bonded with the outer peripheral surface of mandrel 22, and axial air-bearing 24 is arranged on axial bearing seat 25, reduces mandrel 22 in diameter
To with the additional force in axial direction, avoid influencing the moment of friction detection of bearing to be measured, improve detection accuracy.
Above-mentioned axial direction air-bearing 24 is separately positioned on axial bearing seat 25 towards the both ends of driving motor 21 and mandrel 22
Axial air-bearing group is constituted on face, at least provided with two groups of axial direction air-bearing groups, the radial direction gas on axial bearing seat 25
Floating axle holds 23 at least two and is uniformly distributed the radial air-bearing group of composition along the circumferential direction of mandrel 22, on mandrel 22 at least provided with
Two groups of radial direction air-bearing groups.The two sides of axial bearing seat 25 is arranged in axial air-bearing 24, preferred radial direction air-bearing
23 be two groups, and every group includes four radial air-bearings 23, and axial air-bearing 24 is two groups, and every group includes two axial air bearings
Bearing 24 is that mandrel 22 is allow to bear radial direction and bi-directional axial load, and design rationally, improves detection accuracy.
Above-mentioned axial load component 5 includes axially loaded cylinder 51, spoke type weighing sensor 52, axially loaded seat 53 and axis
To loading arm 54, axially loaded cylinder 51 is connect with spoke type weighing sensor 52, spoke type weighing sensor 52 with it is axially loaded
Seat 53 is connected by sensor connecting piece 55, and axially loaded seat 53 is connect with load connector 6 by axially loaded arm 54.Structure
Simply, facilitate connection and load, keep the transmitting of power more acurrate.
It is equipped with connecting shaft 531 on one end of above-mentioned axially loaded seat 53, is set between connecting shaft 531 and axially loaded seat 53
It is equipped with oscillating bearing 532, the inner ring and outer ring of oscillating bearing 532 is interference fitted with connecting shaft 531 and axially loaded seat 53 respectively,
One end of the sensor connecting piece 55 is connect with spoke type weighing sensor 52, is provided on the other end for 531 frame of connecting shaft
If two notches 551, the correspondence two sides of sensor connecting piece 55 be provided with prevent connecting shaft 531 deviate from notch 551 pressing plate
552.The inside and outside circle of oscillating bearing 532 connects respectively with connecting shaft 531 and the interference fit of axially loaded seat 53 to eliminate gap,
When installation, the both ends of connecting shaft 531 are placed in notch 551, then prevent connecting shaft 531 from notch 551 using pressing plate 552
Abjection, this design eliminates oscillating bearings 532 to install gap, can eliminate the vibration due to caused by gap, and improve testing machine
Control precision, fill, tear open it is more convenient.
Above-mentioned pressing plate 552 is rotatably arranged on sensor connecting piece 55, and two pressing plates 552 are by being threaded through sensor connecting piece
Articulated shaft 553 on 55 connects, and is provided with annular groove on the articulated shaft 553 at position corresponding with pressing plate 552, on annular groove
It is arranged with the retaining ring 554 for preventing pressing plate 552 from deviating from articulated shaft 553, limitation pressing plate 552 is additionally provided on sensor connecting piece 55
The adjusting bolt 555 of rotational angle.Pressing plate 552 is rotatably assorted with sensor connecting piece 55, and the setting of retaining ring 554 can prevent pressing plate
552 along articulated shaft 553 axial direction abjection, adjust bolt 555 end abutted with pressing plate 552 limit pressing plate 552 rotational angle,
When adjusting bolt 555 is tightened, pressing plate 552 is abutted with connecting shaft 531, avoids connecting shaft 531 from dropping out from notch 551, notch 551
It can be the semi-circular recesses being adapted to connecting shaft 531, when disassembly is desired, unscrew and adjust bolt 555, make pressing plate 552 can be with
Rotation facilitates connecting shaft 531 to dismantle, and structure is simple, easy for installation.
Above-mentioned pressing plate 552 is located at the circumferential side of connecting shaft 531, and pressing plate 552 is towards being provided on the side of connecting shaft 531
The inner wall of cavity 5521 compatible with connecting shaft 531, cavity 5521 can be abutted with the end face of connecting shaft 531 and top circumferential surface,
The holding chamber placed for connecting shaft 531 is formed between the inner wall of cavity 5521 and the inner wall of notch 551.It unscrews and adjusts bolt 555,
Connecting shaft 531 is put into the notch 551 of sensor connecting piece 55, then screws and adjusts bolt 555, be located at cavity 5521
In connecting shaft 531, stable connection, structure is simple.
At least two strip-shaped holes 533 are provided on the other end of above-mentioned axially loaded seat 53, two strip-shaped holes 533 are in symmetrical
It is vertically arranged, the axially loaded seat 53 and axially loaded arm 54 are connected by the screw 534 being threaded through in strip-shaped hole 533, spiral shell
Silk 534 can be along 533 guiding movement of strip-shaped hole.The setting of strip-shaped hole 533 is to adjust axially loaded seat 53 for convenience and axially add
Relative position between load arm 54 after being moved to the position of needs, is fixed by tightening screw 534, avoids axial load
5 pairs of component load connectors 6 apply radial additional force, keep detection accuracy higher.
Adjusting screw rod 535, one end of adjusting screw rod 535 and axially loaded 53 spiral shell of seat are connected on above-mentioned axially loaded seat 53
Line connection, the other end pass through the block 541 being fixed on axially loaded arm 54 and form turning end 5351, be arranged in turning end 5351
There are two bulge loops 5352, the axis of adjusting screw rod 535 and block 541 is realized in the two sides up and down that two bulge loops 5352 are located at block 541
Cooperate to limit, the rotation drivable shaft of adjusting screw rod 535 is to load seat 53 along 533 guiding movement of strip-shaped hole.Adjusting screw rod 535
Setting be the position for adjusting axially loaded seat 53 for convenience, block 541 and the formation of adjusting screw rod 535 circumferentially rotate cooperation and
Axial limiting cooperation, easy to adjust using the separate of screw rod, structure is simple.
Above-mentioned load connector 6 includes the upper connector 61 connecting with radial load component 3 and connects with axial load component 5
The lower connector 62 connect, upper connector 61 and lower connector 62 are hingedly arranged, and connect on the upper connector 61 or lower connector 62
It is connected to the connecting plate 63 connecting with the outer ring of bearing to be measured, connecting plate 63 constitutes removable with upper connector 61 or lower connector 62
Connection.Upper connector 61 can be relatively rotated with lower connector 62, and the peace so that it is convenient to bearing to be measured is arranged in hollow in connector
Dress, when installation, bearing to be measured passes through the hollow cavity of connector, connect its inner ring with bearing tooling 1 to be measured, then connecting plate 63
Connect by screw with the outer ring of bearing to be measured, connecting plate 63 connect with lower connector 62 by screw again, realization connector and
The purpose of the outer ring connection of bearing to be measured, structure is simple, saves assembly time, improves detection efficiency.
The present invention is not limited to above-mentioned specific embodiment, and persons skilled in the art are disclosed interior according to the present invention
Hold, can be implemented using other a variety of specific embodiments of the invention or all using design structure and think of of the invention
Road does simple change or change, both falls within protection scope of the present invention.
Claims (10)
1. a kind of test device of automobile hub bearing load friction torque including bearing tooling to be measured, drives bearing to be measured
Driving assembly, radial load component and the detection piece for detecting moment of friction, it is characterised in that: further include axial load group
Part, the driving component include driving motor, mandrel, radial air-bearing, axial air-bearing, axial bearing seat and mandrel
Seat, axial bearing seat and bearing tooling to be measured are connected to the both ends of mandrel, and axial air-bearing is arranged in axial bearing seat
On, mandrel seat is wrapped on the outside of the surrounding of mandrel, and radial air-bearing is between mandrel and mandrel seat, driving motor and mandrel
It is connected by the shaft coupling being disposed there between with torque sensor and constitutes linkage setting, torque sensor constitutes described
Detection piece, the side of the bearing tooling to be measured are provided with load connector, radial load component and axial load component with
Connector connection is loaded, load connector is connect with bearing tooling to be measured by bearing to be measured.
2. the test device of automobile hub bearing load friction torque according to claim 1, it is characterised in that: the diameter
It is arc air-bearing to air-bearing, axial air-bearing is plane air-bearing.
3. the test device of automobile hub bearing load friction torque according to claim 1 or 2, it is characterised in that: institute
It states axial air-bearing and is separately positioned on axial bearing seat towards the axial air-bearing shafts of composition in the both ends of the surface of driving motor and mandrel
Hold group, at least provided with two groups of axial direction air-bearing groups on axial bearing seat, the radial direction air-bearing at least two is along core
The circumferential direction of axis, which is uniformly distributed, constitutes radial air-bearing group, at least provided with two groups of radial direction air-bearing groups on mandrel.
4. the test device of automobile hub bearing load friction torque according to claim 1 or 2, it is characterised in that: institute
Stating axial load component includes axially loaded cylinder, spoke type weighing sensor, axially loaded seat and axially loaded arm, axially loaded
Cylinder is connect with spoke type weighing sensor, and spoke type weighing sensor is connect with axially loaded seat by sensor connecting piece, axis
It is connect to load seat with load connector by axially loaded arm.
5. the test device of automobile hub bearing load friction torque according to claim 4, it is characterised in that: the axis
It is equipped with connecting shaft on one end of load seat, oscillating bearing is provided between connecting shaft and axially loaded seat, oscillating bearing
Inner ring and outer ring is interference fitted with connecting shaft and axially loaded seat respectively, and one end of the sensor connecting piece and spoke type are weighed
Sensor connects, and two notches set up for connecting shaft is provided on the other end, the correspondence two sides of sensor connecting piece are provided with anti-
The only pressing plate of connecting shaft abjection notch.
6. the test device of automobile hub bearing load friction torque according to claim 5, it is characterised in that: the pressure
Plate is rotatably arranged on sensor connecting piece, and two pressing plates pass through the hinged axis connection that is threaded through on sensor connecting piece, the hinge
It is provided with annular groove at position corresponding with pressing plate in spindle, the retaining ring for preventing pressing plate from deviating from articulated shaft is arranged on annular groove,
The adjusting bolt of the rotational angle of limitation pressing plate is additionally provided on sensor connecting piece.
7. the test device of automobile hub bearing load friction torque according to claim 6, it is characterised in that: the pressure
Plate towards being provided with the limited block caning turn to above notch on the medial surface of connecting shaft, the inner wall of limited block and notch it
Between form the holding chamber placed for connecting shaft.
8. according to the test device of automobile hub bearing load friction torque described in claim 5 or 6 or 7, it is characterised in that:
At least two strip-shaped holes are provided on the other end of the axially loaded seat, two strip-shaped holes are in symmetrically to be vertically arranged, the axis
To load seat and axially loaded arm by the screw connection being threaded through in strip-shaped hole, screw can be along strip-shaped hole guiding movement.
9. the test device of automobile hub bearing load friction torque according to claim 8, it is characterised in that: the axis
It is connected with adjusting screw rod on load seat, one end of adjusting screw rod is threadedly coupled with axially loaded seat, and the other end is passed through and is fixed on
Block on axially loaded arm forms turning end, is provided with two bulge loops in turning end, and two bulge loops are located at up and down the two of block
Side realizes that the axial limiting of adjusting screw rod and block cooperates, and the rotation drivable shaft of adjusting screw rod is oriented to load seat along strip-shaped hole
It is mobile.
10. the test device of automobile hub bearing load friction torque described according to claim 1 or 2 or 5 or 6 or 7 or 9,
It is characterized by: the load connector includes the upper connector connecting with radial load component and connect with axial load component
Lower connector, upper connector and lower connector are hingedly arranged, are connected on the upper connector or lower connector and axis to be measured
The connecting plate for the outer ring connection held, connecting plate and upper connector or lower connector constitute removable connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811581407.2A CN109612615B (en) | 2018-12-24 | 2018-12-24 | Testing device for automobile hub bearing load friction torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811581407.2A CN109612615B (en) | 2018-12-24 | 2018-12-24 | Testing device for automobile hub bearing load friction torque |
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| Publication Number | Publication Date |
|---|---|
| CN109612615A true CN109612615A (en) | 2019-04-12 |
| CN109612615B CN109612615B (en) | 2021-04-20 |
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| CN201811581407.2A Active CN109612615B (en) | 2018-12-24 | 2018-12-24 | Testing device for automobile hub bearing load friction torque |
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| CN110411841A (en) * | 2019-07-05 | 2019-11-05 | 人本集团有限公司 | Detect the detection device that direction converter bearing bears load-carrying ability |
| CN113310623A (en) * | 2021-06-08 | 2021-08-27 | 洛阳Lyc汽车轴承科技有限公司 | Hub bearing friction torque measurement equipment calibration device and calibration method |
| CN113848062A (en) * | 2021-12-01 | 2021-12-28 | 三迪(常州)智能装备有限公司 | An oil-free bearing friction testing equipment |
| CN114371003A (en) * | 2021-12-27 | 2022-04-19 | 人本股份有限公司 | Equipment for measuring friction torque of needle bearing |
| CN115184706A (en) * | 2022-07-04 | 2022-10-14 | 重庆理工清研凌创测控科技有限公司 | Loading structure for online detection of electric drive system of direct-drive structure vehicle |
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| CN119198089A (en) * | 2024-11-26 | 2024-12-27 | 洛阳开远智能精机有限公司 | Automobile wheel hub bearing load friction torque testing machine and testing method thereof |
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| CN113310623A (en) * | 2021-06-08 | 2021-08-27 | 洛阳Lyc汽车轴承科技有限公司 | Hub bearing friction torque measurement equipment calibration device and calibration method |
| CN113310623B (en) * | 2021-06-08 | 2023-03-17 | 洛阳Lyc汽车轴承科技有限公司 | Hub bearing friction torque measurement equipment calibration device and calibration method |
| CN113848062A (en) * | 2021-12-01 | 2021-12-28 | 三迪(常州)智能装备有限公司 | An oil-free bearing friction testing equipment |
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| CN115628908A (en) * | 2022-12-20 | 2023-01-20 | 哈尔滨船舶锅炉涡轮机研究所(中国船舶集团有限公司第七0三研究所) | Tool for bearing load detection |
| CN115628908B (en) * | 2022-12-20 | 2023-05-16 | 哈尔滨船舶锅炉涡轮机研究所(中国船舶集团有限公司第七0三研究所) | Tool for bearing load detection |
| CN119198089A (en) * | 2024-11-26 | 2024-12-27 | 洛阳开远智能精机有限公司 | Automobile wheel hub bearing load friction torque testing machine and testing method thereof |
| CN119198089B (en) * | 2024-11-26 | 2025-03-07 | 洛阳开远智能精机有限公司 | Automobile hub bearing load friction torque testing machine and testing method thereof |
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