CN205642328U - Automobile wheel hub bearing inner race axial detecting system - Google Patents

Abstract

The utility model discloses an automobile wheel hub bearing inner race axial detecting system, at the top of lathe bed fix the support frame, installation positioning seat in the upper end of support frame is worn to establish in and is measured the cover, and the displacement measurement appearance is equipped with on the top of measuring the cover, and the contact of displacement measurement appearance and the contact of the top surface of measuring stick are measured the lower extreme connecting axle of cover and are gone up the assembly to detecting, setting up the supporting seat in the below of support frame, having the guide bar through the linear bearing supporting in the supporting seat, the lower extreme of guide bar is fixed with the locating plate, and the locating plate is connected with the piston rod of cylinder, assembly under installation axial in the upper end of guide bar detects. The utility model discloses can realize the axial of one type of two channel of automobile wheel hub bearing inner race and synthesize size detection, the testing result is accurate, reliable, detection stable good, detection efficiency height to repeated detection precision is high, helps the enterprise to improve the qualification rate of product, avoids the product to scrap and produces economic loss.

Description

The axial detecting system in automobile hub bearing outer ring

Technical field

This utility model relates to the axial detecting system in a kind of automobile hub bearing outer ring, for a class automotive hub The axial overall dimensions detection of bearing outer ring part two raceway groove.

Background technology

At present, more and more higher along with properties of product and the prescription of country's auto parts and components.At automotive hub During bearing Assembling Production, the testing requirement of outer ring part is also more and more tighter.If the inspection of outer ring part Survey stability, accuracy of detection are the highest, and the qualification rate of the product that is bound to is the highest, can cause substantial amounts of product rejection, Enterprise is made to suffer substantial amounts of economic loss.

Utility model content

Because the above-mentioned deficiency of prior art, technical problem to be solved in the utility model is to provide one Plant the axial detecting system in automobile hub bearing outer ring.

The technical solution of the utility model is as follows: the axial detecting system in a kind of automobile hub bearing outer ring, and it is special Levy and be: at the top fixing support rack of lathe bed, the upper end of this bracing frame is installed positioning seat, worn in positioning seat If measuring unit, the top of described measuring unit equipped with detector for displacement measuring, the contact of detector for displacement measuring straight down, And contact with the end face measuring bar, measure bar and be positioned in measuring unit；The lower end of described measuring unit is solid with upper assembly Reservation fixes, and upper assembly fixes seat suspended fixing in the lower section of positioning seat, fixes seat and location at upper assembly Being provided with spring between Zuo, inner ring briquetting is installed in the bottom that described upper assembly fixes seat, on this on inner ring briquetting Suit holder, holder arranges the most equally distributed multiple upper measurement steel ball, on described Retainer be provided above angled slide block, upper angled slide block is supported by upper measurement steel ball, on this angled slide block with upper always Become fixing seat to be slidably matched, and be provided with compression spring between upper angled slide block and the compression spring seat above it, described The lower end of upper angled slide block and upper assembly are fixed and are arranged measurement inner ring between the lower end of seat, and described upper assembly is fixed Wearing gauge head in Zuo, the upper end of gauge head is stretched in measuring unit, and contacts with the bottom surface of described measurement bar, gauge head Lower end stretch in inner ring briquetting, on described gauge head be set with compression spring, the upper end of this compression spring with Measuring unit abuts, and the lower end of compression spring abuts with the annular boss on gauge head, and upper assembly is provided with in fixing seat The step surface coordinated with annular boss；

Support seat is set in the lower section of support frame as described above, in supporting seat, is supported with guide post by linear bearing, The lower end of described guide post is fixed with location-plate, and location-plate is connected with the piston rod of cylinder, the cylinder body of cylinder Being fixed with supporting seat by bearing, under the upper end of described guide post is installed, assembly fixes seat, and lower assembly is solid The fixing lower inner ring briquetting in the top of reservation, the pillar that lower assembly fixes seat top middle portion stretches in lower inner ring briquetting, And the top of pillar is provided with the alloy block matched with described gauge head, on described lower inner ring briquetting, set loads guarantor Hold frame, lower retainer arrange the most equally distributed multiple lower measurement steel ball, these lower measurement steel balls by Lower angled slide block supports, and described lower angled slide block is fixed seat with lower assembly and is slidably matched, and lower angled slide block is with below Lower press spring base between be provided with lower stage clip, fix in the upper end of described lower angled slide block and lower assembly between seat arrange Lower measurement inner ring；Gripper shoe it is embedded in the lower end of support frame as described above, the corresponding described lower inner ring briquetting of gripper shoe Via is offered in position.

Use above technical scheme, upper assembly fix seat, upper inner ring briquetting, holder, upper measurement steel ball, The parts compositions such as upper angled slide block, compression spring seat, compression spring, upper measurement inner ring, gauge head and compression spring are axially Assembly in detection；Lower assembly fix seat, lower inner ring briquetting, alloy block, lower retainer, lower measurement steel ball, The lower assemblies of parts composition axially detection such as lower angled slide block, lower press spring base, lower stage clip and lower measurement inner ring.

The when of detection, automobile hub bearing outer ring part is placed on the supporting plate, controls cylinder action, Under the piston rod making cylinder is driven guide post by location-plate and axially detected, assembly moves upward, lower measurement steel Ball initially enters in the raceway groove of part lower end, hub bearing outer ring, and then hub bearing outer ring part is with axially inspection Survey lower assembly to move upwardly together, then in the upper raceway groove measuring steel ball entrance part upper end, hub bearing outer ring, Along with guide post continues up under the driving of cylinder, the lower angled slide block of lower measurement steel ball compressing overcomes lower stage clip Elastic force, makes lower angled slide block move downward, until lower measurement steel ball engages with lower measurement inner ring；Meanwhile, The upper angled slide block of upper measurement steel ball compressing overcomes the elastic force of compression spring, makes angled slide block move upward, until upper survey Dimension ball engages with upper measurement inner ring；Upper and lower measurement steel ball with corresponding measure inner ring engaging process in, Lower assembly fixes the alloy block contact gauge head on seat top, high-precision detector for displacement measuring measured by measuring staff The size of minor variations, then feed back to lower assembly process through the amplification of control system signal, thus realize measuring.

This utility model is directly measured the most micro-by high-precision detector for displacement measuring by the sensitive sensing of its contact Little displacement amount of movement, displacement detecting is highly sensitive, and the precision of duplicate detection is high.This utility model is permissible The ditch heart of detection automobile hub bearing outer ring is away from, the axially overall dimensions such as ditch shape, ditch external diameter, it can be ensured that produce The qualification rate of product, and ensure that the stability of product quality.Guide post moves up and down in linear bearing, on Lower rectilinear movement is steady, and linear movability is good, it can be ensured that the accuracy of measurement result.Fix at upper assembly Being provided with spring between seat and positioning seat, during measurement, the elastic force of spring can make hub bearing outer ring part with axial Detect upper and lower assembly from dynamic(al) correction, make detection to smoothly complete, and testing result accurately, reliable.Axially Detect upper and lower assembly structure simple, compact, it is easy to assembling, and flexible in operation, at stage clip after having detected Effect under measurement steel ball can automatically reset, so without manual operation, be greatly saved manpower, and effectively Improve detection efficiency.

Described detector for displacement measuring is installed on positioning sleeve, and the contact of detector for displacement measuring is through positioning sleeve and stretches into survey In amount set, described positioning sleeve is connected with measuring unit by fixed cover, and fixed cover is by the screw radially worn and determines Position set and measuring unit fix.Above displacement structure measuring instrument easy accessibility, the fixing being connected with measuring unit Good, and can ensure that its contact is positioned on a vertical curve with measuring staff and gauge head, thus ensured detection further The accuracy of result.

In order to simplify structure, convenient for assembly, make hub bearing outer ring part with axially to detect upper and lower assembly automatic The good reliability of correction, the lower end of described positioning seat is solid with upper assembly by four stay bolts by the rectangular distribution Reservation connects, and described stay bolt and positioning seat matched in clearance, the head of stay bolt is supported by positioning seat, long spiral shell The lower end of bolt is fixed seat with upper assembly and is threadeded, and each stay bolt is all set with spring.

Described bearing is " L " shape, is made up of transverse slat and riser, and the riser of bearing fits fixing with supporting seat, The transverse slat of bearing is installed the cylinder body of cylinder.Above structural bearings moulding is simple, and processing and fabricating is easy, makes Cylinder firmly installs, and will not shake.

The piston rod of described cylinder docks mutually with extension bar, is fixed by swivel nut between the two, and described extension bar is vertical Through location-plate, stop nut and locking nut fixing, stop nut and locking nut are lived apart at location-plate Both sides up and down.Above structure can regulate the height and position of the lower assembly of axially detection, regulation behaviour as required Make simple, convenient, fast；And stop nut can ensure that when measuring, up displacement is equal every time, The compression distance making spring is identical, thus when ensure that measurement every time, spring pressurization power is identical.

At the lower end suspended fixing riser of described support seat, equipped with upper and lower two displacement inductive switches on this riser, The sensing screw matched with displacement inductive switch is fixed on location-plate.Displacement inductive switch is by sensing screw Trigger, the signal of telecommunication is passed to control system, under control of the control system, it is ensured that steady when measuring every time The pressure time, thus ensure that the measured value of high precision displacement measuring instrument is stable.

In order to prevent compression spring from finding crooked or skew, it is ensured that measurement result is accurate, and on described, assembly is fixed The outside of seat is symmetrical arranged compression spring, and the upper end of this compression spring is stretched in compression spring seat, and the lower end of compression spring is stretched Enter in upper angled slide block.

In order to make upper measurement inner ring install firm, do not occur loosen or come off, described upper measurement inner ring with upper always Become fixing seat and upper inner ring briquetting tight fit.

In order to prevent lower stage clip from finding crooked or skew, it is ensured that measurement result is accurate, fixes at described lower assembly The outside of seat is symmetrical arranged lower stage clip, and the upper end of this lower stage clip is stretched in lower angled slide block, and the lower end of lower stage clip is stretched Enter in lower press spring base.

Firm in order to make lower measurement inner ring install, do not occur to loosen or come off, described lower measurement inner ring is interior with lower Circle briquetting and lower assembly fix seat tight fit.

Beneficial effect: this utility model can realize the most comprehensive chi of class automobile hub bearing outer ring two raceway groove Very little detection, accurately, reliably, the good stability of detection, detection efficiency is high, and duplicate detection for testing result Precision is high, contributes to enterprise and improves the qualification rate of product, it is to avoid product rejection and produce economic loss.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the layout schematic diagram of bracing frame upper-part.

Fig. 3 is the structural representation of the upper assembly of axially detection.

Fig. 4 is the structural representation of the lower assembly of axially detection.

Detailed description of the invention

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:

As shown in Figure 1 and Figure 2, lathe bed 1 is fixed on ground by foundation bolt.Set at the top of lathe bed 1 Putting bracing frame 2, the bottom surface of this bracing frame 2 fits with the top board of lathe bed 1, and bracing frame 2 is by bolt and bed Body 1 fixes.Arranging positioning seat 3 in the lower section of bracing frame 2 upper end hanging deck, this positioning seat 3 is hollow structure, The upper end of positioning seat 3 is inserted in the through hole of bracing frame 2 upper end hanging deck, and positioning seat 3 is by bolt and support The hanging deck of frame 2 upper end is fixing to be connected.

As shown in Figure 1 and Figure 2, in positioning seat 3, measuring unit 4, measuring unit 4 and positioning seat 3 gap are worn Coordinate.Being arranged above positioning sleeve 32 at measuring unit 4, detector for displacement measuring 5 is installed on positioning sleeve 32, The contact of detector for displacement measuring 5 is straight down through positioning sleeve 32, and stretches in measuring unit 4.Positioning sleeve 32 leads to Crossing fixed cover 33 to be connected with measuring unit 4, fixed cover 33 is by the screw radially worn and positioning sleeve 32 and measurement Set 4 fixes.The contact of shift measurement instrument 5 contacts with the end face measuring bar 6, measures bar 6 and is positioned at measuring unit 4 In.

As shown in Figure 1 and Figure 2, the lower end of measuring unit 4 is stretched into assembly and is fixed in seat 7, and both pass through bolt Fixing.Upper assembly fixes seat 7 suspended fixing in the lower section of positioning seat 3, and upper assembly fixes the concrete peace of seat 7 Dress mode is preferably: seat 7 is fixed by four stay bolts by the rectangular distribution and upper assembly in the lower end of positioning seat 3 Connecting, stay bolt and positioning seat 3 matched in clearance, the head of stay bolt is supported by positioning seat 3, stay bolt Lower end is fixed seat 7 with upper assembly and is threadeded, and each stay bolt is all set with spring 8.

As shown in Figure 1, Figure 2, Figure 3 shows, the bottom fixing seat 7 at upper assembly arranges inner ring briquetting 9, on Inner ring briquetting 9 is fixed seat 7 by bolt and upper assembly and is fixed.On upper inner ring briquetting 9, holding loaded onto by set Frame 10, holder 10 arranges the most equally distributed multiple upper measurement steel ball 11, upper measurement steel ball 11 Number determine according to actual needs.It is provided above angled slide block 12, upper angled slide block at holder 10 12 are supported jointly by all of upper measurement steel ball 11, and on this, angled slide block 12 is located on assembly and fixes on seat 7, And upper angled slide block 12 fixes seat 7 with upper assembly and is slidably matched.It is provided above compression spring at upper angled slide block 12 Seat 13, compression spring seat 13 Fixing shrink ring is fixed on seat 7 in upper assembly.Upper angled slide block 12 and compression spring seat 13 Between be provided with compression spring 14, the outside that compression spring 14 fixes seat 7 at upper assembly is symmetrical, this compression spring The upper end of 14 is stretched in compression spring seat 13, and the lower end of compression spring 14 is stretched in angled slide block 12.Eject upper The lower end of block 12 and upper assembly are fixed and are arranged measurement inner ring 15, upper measurement inner ring 15 between the lower end of seat 7 Suitable with upper measurement steel ball 11, and upper measurement inner ring 15 fixes seat 7 and upper inner ring briquetting 9 with upper assembly Tight fit.

As shown in Figure 1, Figure 2, Figure 3 shows, wearing gauge head 16 in upper assembly fixes seat 7, gauge head 16 is positioned at Measuring the underface of bar 6, the upper end of gauge head 16 is stretched in measuring unit 4, and contacts with the bottom surface measuring bar 6； The lower end of gauge head 16 is stretched in inner ring briquetting 9, the lower surface of gauge head 16 and the bottom surface of upper inner ring briquetting 9 It is substantially flush.Being set with compression spring 17 on gauge head 16, compression spring 17 is positioned at assembly and fixes seat 7 In inner chamber, the upper end of compression spring 17 abuts with measuring unit 4, on the lower end of compression spring 17 and gauge head 16 Annular boss 16a abut, upper assembly is provided with the step surface coordinated with annular boss 16a in fixing seat 7, Drop out to prevent gauge head 16 from fixing in seat 7 from upper assembly.Above-mentioned upper assembly fix seat 7, upper inner ring briquetting 9, Holder 10, upper measurement steel ball 11, upper angled slide block 12, compression spring seat 13, compression spring 14, upper measurement The parts composition upper assemblies of axially detection such as inner ring 15, gauge head 16 and compression spring 17.

As Figure 1 and Figure 4, support seat 18 is set in the lower section of bracing frame 2, supports seat 18 and tie for hollow Structure, is supported seat 18 and is fixed by the top board of bolt with lathe bed 1, and supports the upper end of seat 18 through lathe bed 1 Top board extend in the base plate of bracing frame 2.It is supported with guide post 19 by linear bearing in supporting seat 18, Guide post 19 is positioned at the underface of gauge head 16, and the lower end of guide post 19, should beyond the bottom surface of support seat 18 One end of the lower end of guide post 19 and location-plate 20 is fixed, and guide post 19 is perpendicular to location-plate 20.Fixed The other end of position plate 20 vertically wears extension bar 35, and extension bar 35 is fixed by stop nut 37 and locking nut 38, Stop nut 37 and locking nut 38 are lived apart in the both sides up and down of location-plate 20.Surface at extension bar 35 Arranging cylinder 21, the piston rod of cylinder 21 stretches out straight down, the piston rod of this cylinder 21 and extension bar 35 phase Docking, is fixed by swivel nut 36 between the two.The cylinder body of cylinder 21 is installed by bearing 22, bearing 22 For " L " shape, being made up of transverse slat and riser, the riser of bearing 22 fits fixing with supporting seat 18, is propping up The cylinder body of cylinder 21 is installed on the transverse slat of seat 22.

As Figure 1 and Figure 4, the lower end suspended fixing riser 39 of seat 18, this riser 39 upper are being supported Hold and fixed with supporting seat 18 by bolt, equipped with upper and lower two displacement inductive switches 40 on riser 39, The sensing screw 41 matched with displacement inductive switch 40 is fixed on location-plate 20.Sensing screw 41 Number is one, and displacement inductive switch 40 is triggered by sensing screw 41, and the signal of telecommunication is passed to control system, Under control of the control system, it is ensured that voltage stabling control when every time measuring.

As Figure 1 and Figure 4, under the upper end of guide post 19 is installed, assembly fixes seat 23, and lower assembly is fixed The top of seat 23 arranges lower inner ring briquetting 24, and lower inner ring briquetting 24 fixes seat 23 phase by bolt with lower assembly Fixing.Lower assembly is fixed the seat 23 integral part of pillar of top middle portion and is stretched into the centre bore of lower inner ring briquetting 24 In, and the top of pillar is provided with the alloy block 25 matched with gauge head 16, the end face of alloy block 25 with lower in Being substantially flush of circle briquetting 24.

As Figure 1 and Figure 4, on lower inner ring briquetting 24, set loads retainer 26, on lower retainer 26 Arranging the most equally distributed multiple lower measurement steel ball 27, the number of lower measurement steel ball 27 is according to actual needs Determining, these lower measurement steel balls 27 are supported by lower angled slide block 28.Lower angled slide block 28 is located on lower assembly and fixes On seat 23, this lower angled slide block 28 is fixed seat 23 with lower assembly and is slidably matched.Lower section at lower angled slide block 28 Arranging lower press spring base 29, lower press spring base 29 Fixing shrink ring is fixed on seat 23 in lower assembly.At lower angled slide block 28 And being provided with lower stage clip 30 between lower press spring base 29, lower stage clip 30 fixes the outside symmetry cloth of seat 23 at lower assembly Putting, the upper end of this lower stage clip 30 is stretched in lower angled slide block 28, and lower press spring base 29 is stretched in the lower end of lower stage clip 30 In.

As Figure 1 and Figure 4, fix in the upper end of lower angled slide block 28 and lower assembly lower survey is set between seat 23 Amount inner ring 31, lower measurement inner ring 31 is suitable with lower measurement steel ball 27, this lower measurement inner ring 31 and lower inner ring Briquetting 24 and lower assembly fix seat 23 tight fit.Gripper shoe 34 it is embedded in the base plate of bracing frame 2 lower end, Via is offered in the position of the corresponding lower inner ring briquetting 24 of gripper shoe 34.Above-mentioned lower assembly fixes seat 23, lower inner ring Briquetting 24, alloy block 25, lower retainer 26, lower measurement steel ball 27, lower angled slide block 28, lower press spring base 29, The lower assemblies of parts composition axially detection such as lower stage clip 30 and lower measurement inner ring 31.

Operation principle of the present utility model is as follows:

The when of detection, automobile hub bearing outer ring part 42 is placed in gripper shoe 34, controls cylinder 21 actions, make the piston rod of cylinder 21 by location-plate 20 drive guide post 19 and axially the lower assembly of detection to Upper motion, lower measurement steel ball 27 initially enters in the raceway groove of part 42 lower end, hub bearing outer ring, then takes turns Hub axle bearing outer-ring part 42 moves upwardly together with the lower assembly of axially detection, and then upper steel ball 11 of measuring enters In the raceway groove of part 42 upper end, hub bearing outer ring, continue under the driving of cylinder 21 along with guide post 19 on OK, the lower angled slide block 28 of lower measurement steel ball 27 compressing overcomes the elastic force of lower stage clip 30, make lower angled slide block 28 to Lower motion, until lower measurement steel ball 27 engages with lower measurement inner ring 31；Meanwhile, upper measurement steel ball 11 In compressing, angled slide block 12 overcomes the elastic force of compression spring 14, makes angled slide block 12 move upward, until upper measurement Steel ball 11 engages with upper measurement inner ring 15；At upper and lower measurement steel ball and the corresponding engaging process measuring inner ring In, lower assembly is fixed the alloy block 25 on seat 23 top and is contacted gauge head 16, by high-precision detector for displacement measuring 5 Measured the size of minor variations by measuring staff 6, then feed back to lower assembler through the amplification of control system signal Sequence, thus realize measuring.Fix at upper assembly and between seat 7 and positioning seat 3, be provided with spring 8, spring during measurement The elastic force of 8 can make hub bearing outer ring part 42 and axially detect upper and lower assembly from dynamic(al) correction.

Claims (10)

1. the axial detecting system in automobile hub bearing outer ring, it is characterised in that: on the top of lathe bed (1) Portion's fixing support rack (2), upper end installation positioning seat (3) of this bracing frame (2), positioning seat is worn in (3) If measuring unit (4), the top of described measuring unit (4) is equipped with detector for displacement measuring (5), detector for displacement measuring (5) Contact straight down, and with measure bar (6) end face contact, measurement bar (6) be positioned at measuring unit (4) In；The lower end of described measuring unit (4) and upper assembly are fixed seat (7) and are fixed, and upper assembly fixes seat (7) Suspended fixing, in the lower section of positioning seat (3), is fixed at upper assembly and is provided with between seat (7) and positioning seat (3) Spring (8), described upper assembly is fixed the bottom of seat (7) and is installed inner ring briquetting (9), inner ring briquetting on this (9) be set with holder (10) on, holder (10) is arranged multiple the most equally distributed on Measure steel ball (11), be provided above upper angled slide block (12), upper angled slide block at described holder (10) (12) being supported by upper measurement steel ball (11), on this, angled slide block (12) and upper assembly fix seat (7) slip Coordinate, and between upper angled slide block (12) and the compression spring seat (13) above it, be provided with compression spring (14), The lower end of described upper angled slide block (12) and upper assembly are fixed and are arranged measurement inner ring (15) between the lower end of seat (7), Described upper assembly is fixed and is worn gauge head (16) in seat (7), and measuring unit (4) is stretched in the upper end of gauge head (16) In, and contact with the bottom surface of described measurement bar (6), inner ring briquetting (9) is stretched in the lower end of gauge head (16) In, described gauge head (16) is set with compression spring (17), the upper end of this compression spring (17) and measurement Set (4) abuts, and the lower end of compression spring (17) abuts with the annular boss (16a) on gauge head (16), Upper assembly is provided with the step surface coordinated with annular boss (16a) in fixing seat (7)；

Support seat (18) is set in the lower section of support frame as described above (2), in supporting seat (18), passes through linear axis Holding and be supported with guide post (19), the lower end of described guide post (19) is fixed with location-plate (20), location-plate (20) piston rod with cylinder (21) is connected, and the cylinder body of cylinder (21) is by bearing (22) and props up Support seat (18) fixes, and under the upper end of described guide post (19) is installed, assembly fixes seat (23), lower always Becoming the fixing lower inner ring briquetting (24) in top of fixing seat (23), lower assembly fixes seat (23) top middle portion Pillar stretches in lower inner ring briquetting (24), and the top of pillar is provided with and matches with described gauge head (16) Alloy block (25), loads retainer (26), lower retainer (26) at the upper set of described lower inner ring briquetting (24) On the most equally distributed multiple lower measurement steel ball (27) is set, measure steel ball (27) under these by lower top Going out block (28) to support, described lower angled slide block (28) and lower assembly are fixed seat (23) and are slidably matched, and under It is provided with lower stage clip (30) between angled slide block (28) and lower press spring base (29) below, ejects under described The upper end of block (28) and lower assembly are fixed and are arranged lower measurement inner ring (31) between seat (23)；In described support Lower end setting-in gripper shoe (34) of frame (2), the corresponding described lower inner ring briquetting (24) of gripper shoe (34) Via is offered in position.

The axial detecting system in automobile hub bearing outer ring the most according to claim 1, it is characterised in that: Described detector for displacement measuring (5) is installed on positioning sleeve (32), and the contact of detector for displacement measuring (5) is through fixed Position set (32) is also stretched in measuring unit (4), and described positioning sleeve (32) is by fixed cover (33) and measurement Set (4) connects, and fixed cover (33) is by the screw radially worn and positioning sleeve (32) and measuring unit (4) Fix.

The axial detecting system in automobile hub bearing outer ring the most according to claim 1, it is characterised in that: Seat (7) is fixed even by four stay bolts by the rectangular distribution and upper assembly in the lower end of described positioning seat (3) Connecing, described stay bolt and positioning seat (3) matched in clearance, the head of stay bolt is supported by positioning seat (3), The lower end of stay bolt is fixed seat (7) and is threadeded with upper assembly, and each stay bolt is all set with spring (8).

The axial detecting system in automobile hub bearing outer ring the most according to claim 1, it is characterised in that: Described bearing (22) is " L " shape, is made up of transverse slat and riser, the riser of bearing (22) and support seat (18) Fit fixing, the transverse slat of bearing (22) is installed the cylinder body of cylinder (21).

5. according to the axial detecting system in automobile hub bearing outer ring described in claim 1 or 2 or 3 or 4, It is characterized in that: the piston rod of described cylinder (21) docks mutually with extension bar (35), passes through spiral shell between the two Set (36) is fixed, and described extension bar (35) passes perpendicularly through location-plate (20), by stop nut (37) and lock Jack panel (38) is fixed, and stop nut (37) and locking nut (38) are lived apart at location-plate (20) Both sides up and down.

The axial detecting system in automobile hub bearing outer ring the most according to claim 5, it is characterised in that: In lower end suspended fixing riser (39) of described support seat (18), equipped with upper and lower two on this riser (39) Displacement inductive switch (40), the sensing screw (41) matched with displacement inductive switch (40) is fixed on fixed On position plate (20).

The axial detecting system in automobile hub bearing outer ring the most according to claim 1, it is characterised in that: On described, assembly is fixed the outside of seat (7) and is symmetrical arranged compression spring (14), this compression spring (14) upper End stretches in compression spring seat (13), and the lower end of compression spring (14) is stretched in angled slide block (12).

8., according to the axial detecting system in automobile hub bearing outer ring described in claim 1 or 7, its feature exists In: described upper measurement inner ring (15) and upper assembly fix seat (7) and upper inner ring briquetting (9) tight fit.

The axial detecting system in automobile hub bearing outer ring the most according to claim 1, it is characterised in that: The outside fixing seat (23) at described lower assembly is symmetrical arranged lower stage clip (30), this lower stage clip (30) upper End stretches in lower angled slide block (28), and the lower end of lower stage clip (30) is stretched in lower press spring base (29).

10. according to the axial detecting system in automobile hub bearing outer ring described in claim 1 or 9, its feature It is: described lower measurement inner ring (31) fixes seat (23) close-fitting with lower inner ring briquetting (24) and lower assembly Close.