CN105136096B - Trailing wheel camber angle detector and trailing wheel flare angle detecting device - Google Patents
Trailing wheel camber angle detector and trailing wheel flare angle detecting device Download PDFInfo
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- CN105136096B CN105136096B CN201410229455.0A CN201410229455A CN105136096B CN 105136096 B CN105136096 B CN 105136096B CN 201410229455 A CN201410229455 A CN 201410229455A CN 105136096 B CN105136096 B CN 105136096B
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Abstract
The present invention provides a kind of trailing wheel camber angle detector and trailing wheel flare angle detecting device, the camber angle detector includes pedestal, the slip support abutment being slidably connected with pedestal, the first displacement detecting apparatus, second displacement detection device, the display screen and data processing unit being arranged on pedestal, the first detection bar that the first displacement detecting apparatus includes the first cylinder, slip is interspersed in the first cylinder and the first displacement sensor for perceiving the displacement of the first detection bar；Second displacement detection device includes the second cylinder, slides the second displacement sensor that second be interspersed in the second cylinder detects bar and the displacement of bar is detected for perception second；Second detection bar is parallel with the first detection bar；First displacement sensor and second displacement sensor are respectively electrically connected to data processing unit, and data processing unit is connected to display screen.
Description
Technical field
The invention belongs to trailing wheel camber angle detection technique field, after a kind of be applied on rear overhang assembly line
Take turns camber angle detector and trailing wheel flare angle detecting device.
Background technology
In general, wheel face and ground out of plumb.It is hoped from headstock to wheel, the angle of wheel and plumb line is known as camber angle
(Camber).If it is in " V " shape that tire upper end, which is inclined outwardly i.e. left and right wheels, referred to as positive camber angle slopes inwardly for negative camber angle.Base
In sheet, positive camber angle is set with preferable flexibility ratio, and negative camber angle has relatively stable rectilinear propagation.
The difference of the angle of camber angle can change tire and the contact point and the point of application on ground, and directly affect tire grabs ground
Power and abrasion situation.And distribution of force of the car weight on axle is changed, bearing is avoided to generate inordinate wear.In addition, camber angle
Presence can be used to after offsetting vehicle body loading, angle change caused by the part distortion of suspension system and active face gap.
The large-scale detection device of generally use infrared C CD (imaging sensor) digital technology realizes four in the prior art
Wheel positioning, this kind equipment can detect to obtain the parameters such as prenex, camber angle and reverse caster.But this kind equipment mostly includes
Complicated digital processing system and the hardware composition of complexity, it is complicated,
It is with high costs.Also, since such large-scale detection device occupied space is big, can typically be only used to vehicle it is offline when vehicle
The detection of four-wheel aligner, it is impossible to be used in the detection of trailing wheel camber angle on rear overhang assembly line.
Invention content
The technical problems to be solved by the invention are to be set for existing using the large-scale detection of infrared C CD digital technologies
Standby the defects of causing not being suitable for rear overhang assembly line greatly due to occupied space, provide a kind of trailing wheel camber angle detector.
Technical solution is as follows used by the present invention solves above-mentioned technical problem：
A kind of trailing wheel camber angle detector is provided, the slip support abutment that is slidably connected including pedestal, with the pedestal, first
Detection device, second displacement detection device, the display screen and data processing unit being arranged on the pedestal are moved, wherein,
First displacement detecting apparatus includes being arranged on the first cylinder on the outside of the slip support abutment, slides and is interspersed in institute
It states the in the first cylinder first detection bar and is arranged on first cylinder or the slip support abutment and for perceiving described the
First displacement sensor of the displacement of one detection bar；
The second displacement detection device include being arranged on the outside of the slip support abutment and with the first cylinder interval
The the second detection bar and be arranged on second cylinder or the sliding branch that second cylinder, slip are interspersed in second cylinder
Second displacement sensor on seat and for perceiving the displacement of the second detection bar；The second detection bar is visited with described first
Measuring staff is parallel；
First displacement sensor and the second displacement sensor are respectively electrically connected to the data processing unit, institute
It states data processing unit and is connected to the display screen.
Further, it is set on the position on the outside of the slip support abutment between first cylinder and second cylinder
Sleeve mounting cylinder is equipped with, in the axis of first cylinder, the second cylinder and sleeve mounting cylinder is generally aligned in the same plane.
Further, the scale along the glide direction extension of the slip support abutment, the scale are provided on the pedestal
Scale value gradually increase from benchmark position to both sides, the benchmark position of the scale is concordant with the axis of the sleeve mounting cylinder.
Further, the trailing wheel camber angle detector further include for adjust the slip support abutment height adjusting machine
Structure, the regulating mechanism include the screw rod for being fixedly connected on nut on the inside of the slip support abutment, being connect with the nut thread
And the turn-knob of the screw rod outboard end is connected to, the side that the pedestal corresponds to the outboard end of the screw rod is formed with through-hole,
The outboard end of the screw rod is formed with the annular groove for being caught in the through-hole edge, to limit the axial movement of the screw rod.
Further, the first detection bar include the first straight-bar portion and along the first straight-bar portion radially extend the
One stopper section, opens up the first sliding groove on first cylinder, and the first sliding groove includes extend along the first straight-bar portion the
One straight trough and the first backstop slot for being vertically connected on the first straight trough tail end, first stopper section is located in initial position
In the first backstop slot；The second detection bar include the second straight-bar portion and along the second straight-bar portion radially extend the
Two stopper sections, open up second sliding slot on second cylinder, and the second sliding slot includes extend along the second straight-bar portion the
Two straight troughs and the second backstop slot for being vertically connected on the second straight trough tail end of institute, second stopper section is in initial position positioned at institute
It states in the second backstop slot.
Further, the first spring is provided in first cylinder, first stopper section is located at first backstop
First spring is compressed when in slot；It is provided with second spring in second cylinder, second stopper section is located at described the
The second spring is compressed when in two backstop slots.
The trailing wheel camber angle detector of the present invention applies the detection of the camber angle on rear overhang assembly line, before testing, will
Trailing wheel camber angle detector, rear overhang (unassembled tire) and subframe are installed on the table simultaneously, after installing, subframe
Be parallel on the workbench, pedestal perpendicular to workbench, the first detection bar and the second detection bar be parallel to workbench and with it is rear
Brake disc on outstanding is opposite；During detection, make the first detection bar and second detect bar respectively to the direction movement of brake disc until with
Until brake disc, (the i.e. first detection bar is passed with respect to first for the displacement of the first displacement sensor perception the first detection bar
The distance change of sensor), (the i.e. second detection bar is passed with respect to second for the displacement of second displacement sensor perception the second detection bar
The distance change of sensor), the first displacement sensor and second displacement sensor respectively visit the displacement of the first detection bar and second
The displacement of measuring staff is sent to data processing unit, and data processing unit can obtain trailing wheel flare according to simple geometrical principle
Angle, and trailing wheel flare angle signal will be obtained and be sent to display screen, display screen shows the trailing wheel camber angle of the rear overhang with written form,
Testing staff can obtain the camber angle size of the rear overhang by observing display screen.Infrared C CD numbers are used relative to existing
The large-scale detection device of word technology, trailing wheel camber angle detector of the invention is simple in structure, occupies little space, after being highly suitable for
The detection of trailing wheel camber angle on hanging wiring.
In addition, the present invention also provides a kind of trailing wheel flare angle detecting device, including workbench, it is arranged on the workbench
On trailing wheel camber angle detector and for the subframe being connect with rear overhang to be horizontally arranged to the localization machine on the workbench
Structure, wherein,
The trailing wheel camber angle detector includes the pedestal being vertically set on the workbench, slides company with the pedestal
Slip support abutment, the first displacement detecting apparatus, second displacement detection device, the display screen being arranged on the pedestal and the data connect
Processing unit, wherein,
First displacement detecting apparatus includes being arranged on the first cylinder on the outside of the slip support abutment, slides and is interspersed in institute
It states the in the first cylinder first detection bar and is arranged on first cylinder or the slip support abutment and for perceiving described the
First displacement sensor of the displacement of one detection bar；
The second displacement detection device include being arranged on the outside of the slip support abutment and with the first cylinder interval
The the second detection bar and be arranged on second cylinder or the sliding branch that second cylinder, slip are interspersed in second cylinder
Second displacement sensor on seat and for perceiving the displacement of the second detection bar；The second detection bar is visited with described first
Measuring staff is parallel；
First displacement sensor and the second displacement sensor are respectively electrically connected to the data processing unit, institute
It states data processing unit and is connected to the display screen.
Further, it is set on the position on the outside of the slip support abutment between first cylinder and second cylinder
Sleeve mounting cylinder is equipped with, the axis of first cylinder, the second cylinder and sleeve mounting cylinder is generally aligned in the same plane interior, the trailing wheel
Flare angle detecting device further includes the branch sleeve being socketed on the sleeve mounting cylinder.
Further, the scale along the glide direction extension of the slip support abutment, the scale are provided on the pedestal
Scale value gradually increase from benchmark position to both sides, the benchmark position of the scale is concordant with the axis of the sleeve mounting cylinder.
Further, the trailing wheel camber angle detector further include for adjust the slip support abutment height adjusting machine
Structure, the regulating mechanism include the screw rod for being fixedly connected on nut on the inside of the slip support abutment, being connect with the nut thread
And the turn-knob of the screw rod outboard end is connected to, the side that the pedestal corresponds to the outboard end of the screw rod is formed with through-hole,
The outboard end of the screw rod is formed with the annular groove for being caught in the through-hole edge, to limit the axial movement of the screw rod.
Further, the detent mechanism includes the first multi-diameter shaft and the second multi-diameter shaft that are erected on the workbench.
The trailing wheel flare angle detecting device of the present invention applies the detection of the camber angle on rear overhang assembly line, before testing,
Trailing wheel camber angle detector, rear overhang (unassembled tire) and subframe are installed simultaneously on the table, after installing, secondary vehicle
Frame is parallel on the workbench, pedestal perpendicular to workbench, the first detection bar and the second detection bar be parallel to workbench and with
Brake disc on rear overhang is opposite；During detection, make the first detection bar and second detect bar respectively to the direction movement of brake disc until
Until brake disc, (the i.e. first detection bar is with respect to first for the displacement of the first displacement sensor perception the first detection bar
The distance change of sensor), (the i.e. second detection bar is with respect to second for the displacement of second displacement sensor perception the second detection bar
The distance change of sensor), the first displacement sensor and second displacement sensor are respectively by the displacement and second of the first detection bar
The displacement of detection bar is sent to data processing unit, and data processing unit can obtain trailing wheel flare according to simple geometrical principle
Angle, and trailing wheel flare angle signal will be obtained and be sent to display screen, display screen shows the trailing wheel camber angle of the rear overhang with written form,
Testing staff can obtain the trailing wheel camber angle size of the rear overhang by observing display screen.Infrared ray is used relative to existing
The large-scale detection device of CCD digital technologies, trailing wheel camber angle structure of the detecting device of the invention is simple, occupies little space, very
Suitable for the detection of trailing wheel camber angle on rear overhang assembly line.
Description of the drawings
Fig. 1 is the structure diagram for the trailing wheel flare angle detecting device that one embodiment of the invention provides；
Fig. 2 is the internal structure schematic diagram for the trailing wheel camber angle detector that one embodiment of the invention provides；
Fig. 3 is the operating diagram for the trailing wheel flare angle detecting device that one embodiment of the invention provides；
Fig. 4 is the partial structural diagram outside the rear upper swing arm stent on rear overhang is connect with subframe；
Fig. 5 detects bar in initial position and the position relationship simplification figure of brake disc for the first detection bar and second；
Fig. 6 is the first detection bar and the second detection bar and position relationship simplification figure during brake disc.
Reference numeral in Figure of description is as follows：
100th, workbench；200th, trailing wheel camber angle detector；300th, rear overhang；301st, brake disc；302nd, rear upper swing arm stent；
3021st, slotted hole；3022nd, stud；303rd, rear upper swing arm；304th, wheel hub；400th, detent mechanism；500th, branch sleeve；600th, it is secondary
Vehicle frame；601st, bushing；602nd, bushing；1st, pedestal；11st, through-hole；12nd, guide groove；2nd, slip support abutment；21st, guide rail；3rd, the first displacement is visited
Survey device；31st, the first cylinder；311st, the first straight trough；312nd, the first backstop slot；32nd, the first detection bar；321st, the first straight-bar portion；
322nd, the first stopper section；33rd, the first displacement sensor；34th, the first spring；4th, second displacement detection device；41st, the second cylinder；
411st, the second straight trough；412nd, the second backstop slot；42nd, the second detection bar；421st, the second straight-bar portion；422nd, the second stopper section；43rd,
Two displacement sensors；44th, second spring；5th, display screen；6th, regulating mechanism；61st, nut；62nd, screw rod；621st, annular groove；63、
Turn-knob；7th, sleeve mounting cylinder；8th, scale；81st, benchmark position.
Specific embodiment
In order to which technical problem solved by the invention, technical solution and advantageous effect is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1 to Figure 3, the trailing wheel flare angle detecting device that one embodiment of the invention provides includes workbench 100, sets
Put trailing wheel camber angle detector 200 on the workbench 100 and for rear overhang 300 to be horizontally arranged at the workbench
Detent mechanism 400 on 100, the trailing wheel camber angle detector 100 include pedestal 1, the sliding being slidably connected with the pedestal 1
Bearing 2, the first displacement detecting apparatus 3, second displacement detection device 4, the display screen 5 being arranged on the pedestal and data processing
Unit.The relatively described pedestal 1 of the slip support abutment 2 slides, to realize lifting of the slip support abutment 2 on pedestal 1.Certainly, it slides
The relatively described pedestal 1 of bearing 2 can be slided vertically, oblique can also be slided.
In the present embodiment, as shown in Figures 1 and 2, first displacement detecting apparatus 3 includes being arranged on the slip support abutment
First cylinder 31 in 2 outsides slides the first detection bar 32 being interspersed in first cylinder 31 and is arranged on the sliding branch
The first displacement sensor 33 on seat 2 and for perceiving the displacement of the first detection bar 32；Certainly, in other implementations, the
One displacement sensor 33, which may also be, to be arranged on the first cylinder 31.The glide direction of first detection bar 32 is different from slip support abutment 2
Glide direction, i.e., glide direction and the glide direction of slip support abutment 2 of the first detection bar 32 are not parallel, for example, first detects
The glide direction of bar 32 is vertical with the glide direction of slip support abutment 2 or first detects the glide direction of bar 32 and slip support abutment 2
Glide direction in a predetermined angle being not zero, such as 45 degree.
In the present embodiment, it is preferable that the first detection bar 32 includes the first straight-bar portion 321 and along the first straight-bar portion
321 the first stopper section 322 radially extended, the first sliding groove is opened up on first cylinder 31, and the first sliding groove includes edge
The first straight trough 311 that the first straight-bar portion 321 extends and the first backstop slot for being vertically connected on 311 tail end of the first straight trough
312, first stopper section 322 is located in initial position in the first backstop slot 312.It is further preferable that described first
The first spring 34 is provided in cylinder 31, first stopper section 322 compresses described when being located in the first backstop slot 312
One spring 34.In this way, when the first stopper section 322 is located in the first backstop slot 312, the first detection bar 32 is maintained at
Initial position；When the first backstop slot 312 is left in the first stopper section 322, the first detection bar 32 is in the work of the first spring 34
With lower automatic protruding.Certainly, in other embodiments, the first spring 34 can not also be set, but directly pass through detection
Personnel push the first detection bar 32 to and fro manually.In the present embodiment, the first detection bar 32 and system are pushed by the first spring 34
Moving plate contact, on the one hand by the first spring 34 can quick release first detect bar 32, and then improve measuring speed；The opposing party
Face, when the first detection bar 32 is with brake disc, still to the first detection bar 32, there are one motive force, Jin Erbao for the first spring 34
It is good with brake disc to have demonstrate,proved the first detection bar 32, has improved measurement accuracy.
In the present embodiment, as shown in Figures 1 and 2, the second displacement detection device 4 includes being arranged on the slip support abutment
2 outsides and the second cylinder 41 with first cylinder 31 interval are slided and are interspersed in second cylinder 41 and with described the
One detects the second parallel detection bar 42 of bar and is arranged on the slip support abutment 2 and detects bar 42 for perceiving described second
The second displacement sensor 43 of displacement；Certainly, in other implementations, second displacement sensor 43, which may also be, is arranged on the second cylinder
On 41.It is described second detection bar 42 be parallel to it is described first detection bar 32, thus it is described second detection bar 42 glide direction with
The glide direction of the first detection bar 32 is identical (parallel).
In the present embodiment, it is preferable that the second detection bar 42 includes the second straight-bar portion 421 and along the second straight-bar portion
421 the second stopper section 422 radially extended, second sliding slot is opened up on second cylinder 41, and the second sliding slot includes edge
The second straight trough 411 that the second straight-bar portion 421 extends and be vertically connected on 411 tail end of the second straight trough the second backstop slot
412, second stopper section 422 is located in initial position in the second backstop slot 412.It is further preferable that described second
Second spring 44 is provided in cylinder 41, second stopper section 422 compresses described when being located in the second backstop slot 412
Two springs 44.In this way, when the second stopper section 422 is located in the first backstop slot 412, the second detection bar 42 is maintained at
Initial position；When the second backstop slot 412 is left in the second stopper section 422, the second detection bar 42 is in the work of second spring 44
With lower automatic protruding.Certainly, in other embodiments, second spring 44 can not also be set, but directly pass through detection
Personnel push the second detection bar 42 to and fro manually.In the present embodiment, the second detection bar 42 and system are pushed by second spring 44
Moving plate contact, on the one hand by second spring 44 can quick release second detect bar 42, and then improve measuring speed；The opposing party
Face, when the second detection bar 42 is with brake disc, still to the second detection bar 42, there are one motive force, Jin Erbao for second spring 44
It is good with brake disc to have demonstrate,proved the second detection bar 42, has improved measurement accuracy.
In the present embodiment, first displacement sensor 33 and the second displacement sensor 43 are respectively electrically connected to described
Data processing unit, the data processing unit are connected to the display screen 5.
In the present embodiment, as shown in Figures 1 and 2, the trailing wheel camber angle detector further includes to adjust the sliding
The regulating mechanism 6 of the height of bearing 2, the regulating mechanism 6 include being fixedly connected on the nut 61 of 2 inside of the slip support abutment,
The screw rod 62 that is threadedly coupled with the nut 61 and the turn-knob 63 for being connected to 62 outboard end of screw rod, the pedestal 1 correspond to
The side of the outboard end of the screw rod 62 is formed with through-hole 11, and the outboard end of the screw rod 62, which is formed with, is caught in 11 side of through-hole
The annular groove 621 of edge, to limit the axial movement of the screw rod 62.In this way, when turn-knob 63 is rotated to side, due to described
Nut 61 is connect with slip support abutment 2, and slip support abutment 2 is slidably connected with pedestal 1, thus, nut 61 cannot be rotated around screw rod 61,
And can only be the axis upward sliding in screw rod 61, and then drive 2 opposite base 1 of slip support abutment screw rod 61 axis upward sliding,
It is achieved thereby that the height of slip support abutment 2 is adjusted.In addition, 2 outside of the slip support abutment be located at first cylinder 31 with it is described
Sleeve mounting cylinder 7, first cylinder 31, the second cylinder 41 and sleeve mounting cylinder are provided on position between second cylinder 32
7 axis be generally aligned in the same plane in (axis of the first cylinder 31, the second cylinder 41 and sleeve mounting cylinder 7 is put down in vertical direction
Together).
In the present embodiment, it is preferable that the quarter along the glide direction extension of the slip support abutment 2 is provided on the pedestal 1
Degree 8, the scale value of the scale 8 gradually increases from benchmark position 81 (zero graduation position) to both sides, the benchmark position 81 of the scale 8 with
The axis of the sleeve mounting cylinder 7 is concordant, and (axis of the benchmark position 81 of the scale 8 and the sleeve mounting cylinder 7 is in same water
In plane).In this way, after branch sleeve 500 and brake disc 301 are to connecting, according to the scale 8 on pedestal 1, regulating mechanism is utilized
The height of 6 adjustment slip support abutments 2, you can be adjusted to need by the core wheel position (i.e. the center of brake disc 301) of rear overhang 300
State (unloaded, semi-load or fully loaded), in this way convenient for detecting trailing wheel camber angle of the rear overhang 300 at different core wheel positions.
As shown in Figures 1 to 3, the trailing wheel flare angle detecting device further includes the company being socketed on the sleeve mounting cylinder 7
Female connector cylinder 500.The internal diameter of branch sleeve 500 and the outer diameter of sleeve mounting cylinder 7 match, the outer diameter and rear overhang of branch sleeve 500
On the internal diameter of centre bore of wheel hub 304 match.In this way, in the trailing wheel camber angle for detecting different rear overhangs, it is only necessary to change
The outer diameter of branch sleeve 500, you can realization trailing wheel camber angle detector 200 is docked with wheel hub 304.
In the present embodiment, as shown in Figures 1 and 3, the detent mechanism 400 includes being erected on the workbench 100
First multi-diameter shaft 401 and the second multi-diameter shaft 402.First multi-diameter shaft 401 and the second multi-diameter shaft 402 are mutually parallel.First multi-diameter shaft
401 and second multi-diameter shaft 402 connect respectively with the bushing 601 on subframe 600 and bushing 602, realize that subframe 600 exists with this
Positioning on workbench 100, then the rear overhang 300 being connect with subframe 600 is also positioned.Certainly, in other implementations,
Detent mechanism can also have other forms, such as level support platform, as long as can ensure high subframe 600 being horizontally arranged at institute
It states on workbench.
In the present embodiment, as shown in Figure 1, offering guide groove 12 on the madial wall of pedestal 1, the both sides of slip support abutment 2 are formed
There is guide rail 21, by slip of the guide rail 21 in guide groove 12, being slidably connected for pedestal 1 and slip support abutment 2 is realized with this.Certainly,
Idler wheel is set in other embodiments or in the both sides of slip support abutment 2, it also can be real by rolling of the idler wheel in guide groove 12
Existing, pedestal 1 is slidably connected with slip support abutment 2.
Illustrate the mistake of trailing wheel flare angle detecting device detection trailing wheel camber angle provided in this embodiment with reference to Fig. 1 to 4
Journey.
Before testing, by trailing wheel camber angle detector 100 and rear overhang 300 (unassembled tire) while mounted on workbench
On 100, after installing, subframe 600 is parallel on the workbench 100, and pedestal 1 is perpendicular to workbench 100, the first detection
Bar 32 and second detects bar 42 and is parallel to workbench 100 and, branch sleeve 500 and wheel hub opposite with the brake disc 301 on rear overhang
304 centre bore docking, according to the scale 8 on pedestal 1, the height of slip support abutment 2 is adjusted using regulating mechanism 6, by rear overhang 300
Core wheel position (i.e. the center of wheel hub 304) be adjusted to the state (unloaded, semi-load or fully loaded) needed.
During detection, the first stopper section 322 is made to leave the first backstop slot 312, bar 32 is detected with release first, equally,
The second stopper section 422 is made to leave the second backstop slot 412, with release the second detection bar 42, in this way, the first detection bar 32 and the
Two detection bars 43 under the first spring 34 and the active force of second spring 44, respectively to the direction movement of brake disc 301 until with
Until brake disc 301 contacts, the first displacement sensor 33 perceives displacement (the i.e. first detection 32 phase of bar of the first detection bar 32
To the distance change of first sensor 33), second displacement sensor 43 perceives displacement (the i.e. second spy of the second detection bar 42
Measuring staff 42 is with respect to the distance change of second sensor 43), the first displacement sensor 33 and second displacement sensor 43 are respectively by the
The displacement b of the detection bars of displacement a and second of one detection bar is sent to data processing unit.
Data processing unit is according to following formula (1), you can obtains the trailing wheel outer incline α of the rear overhang 300：
In formula (1), a, b are respectively the first detection that the first displacement sensor 33 and second displacement sensor 43 measure
Bar 32 and second detects the displacement distance of bar 42；L is difference in height (the i.e. first detection that the first detection bar 32 and second detects bar 42
The distance of the axis of the axis of bar 32 and the second detection bar 42).
The derivation of formula (1) is as follows：
The initial position of Fig. 5 and Fig. 6, A point for the outboard end of the first detection bar 32 is referred to, B points are the first detection bar 32
Outboard end and brake disc 301 contact position, then line segment AB is the displacement a of the first detection bar 32；C points are the second detection bar
The initial position of 42 outboard end, D points detect the outboard end of bar 42 and the contact position of brake disc 301 for second, then line segment CD
The displacement b of as second detection bar 42.Projection of the E points for B points on the second detection bar 42, then line segment DE is perpendicular to horizontal plane.
Trailing wheel outer incline α is brake disc 301 and the angle namely Fig. 6 middle conductors DE and the angle of brake disc 301 of vertical direction.
In triangle BED, according to the characteristic of right angled triangle, there are following formula (2)：
And due to BE=AB-CD=a-b, DE=L；
Formula (3) is then obtained：
Formula (1) is obtained by formula (3)：
Formula (1) exists in data processing unit in the form of function, and the calling of the data processing unit function can
Enough be calculated this into trailing wheel camber angle size.Data processing unit is conventional chip, without special designing.Certainly, on
Slip support abutment in embodiment is stated to slide in the vertical direction, and the glide direction of the first detection bar and the second detection bar is perpendicular to cunning
The glide direction (sliding in the horizontal direction) of bearing is moved, thus obtains above-mentioned formula (1).However, it should be understood that make
One of alternative solution for above-described embodiment or the oblique slip of slip support abutment, and the first detection bar and the second detection bar
Level is slided, at this point, formula (1) stands good.Two or slip support abutment of the alternative solution as above-described embodiment are oblique
To sliding or vertical sliding, and the first detection bar and the second detection oblique slip of bar, at this point, considering the first detection bar and the
The slip angle of two detection bars, utilizes simple geometrical principle, you can to obtain the camber angle calculation formula for being applicable in the program.
Then, the trailing wheel outer incline α being calculated is sent to display screen 5 by data processing unit in the form of a signal, is shown
Display screen 5 shows the trailing wheel camber angle α of the rear overhang with written form, and testing staff can obtain the rear overhang by observing display screen 5
Trailing wheel camber angle α sizes.
In addition, the trailing wheel flare angle detecting device of the above embodiment of the present invention, is detected based on above-mentioned trailing wheel camber angle,
Still further, it is also possible to enough realize the adjustment of trailing wheel camber angle.The adjustment of trailing wheel camber angle need combine Fig. 3 and it is shown in Fig. 4 after
Upper swing arm stent 302 carries out, and in rear overhang 300, rear upper swing arm stent 302 is used to implement rear 303 inner end of upper swing arm and secondary vehicle
Frame 600 is hinged, and then 303 outboard end of upper swing arm is then connect with joint, and joint is connected on wheel hub 304, and brake disc 301 connects
On wheel hub 304, in general, such as Fig. 3 and Fig. 4, the both sides of rear upper swing arm stent 302 are each provided with two slotted holes 3021, secondary vehicle
The corresponding position setting of frame is there are four threaded hole, in this way, rear upper swing arm stent 302 is fixed on subframe by stud 3022
On 304, rear 303 inner end of upper swing arm is then rotatablely connected with rear upper swing arm stent 302.With reference to Fig. 3 and Fig. 4, illustrate this reality
Apply the process of the trailing wheel flare angle detecting device adjustment trailing wheel camber angle α of example.
After detection obtains the trailing wheel camber angle α of rear overhang, the trailing wheel flare of rear overhang is obtained by the observation detection of display screen 5
Whether angle α meets matching requirements, if not meeting, four studs 3022 are unscrewed so that rear upper swing arm 303 in the horizontal can
A certain distance is moved relative to subframe 600, in this way, the brake disc 301 being connect with rear upper swing arm 303 also being capable of phase in the horizontal
A certain distance is moved to subframe 600, and rear upper swing arm 303 and brake disc 301 can be integrally around rear upper swing arm stents
302 rotations, in this way, brake disc 301 can be in the range of certain angle (with vertical direction institute angle degree) with respect to subframe 600
Deflection.
Then, brake disc 301 is manually adjusted, the first detection bar 32 and second detects bar 42 in the first spring 34 and the second bullet
Remain the contact with brake disc 301 under the action of spring 44, the size of the current trailing wheel camber angle of 5 real-time display of display screen,
When the size of trailing wheel camber angle shown on display screen 5 is required value, then keeps brake disc 301 motionless, screw four
Stud 3022 completes the adjustment of trailing wheel camber angle.
As it can be seen that the trailing wheel flare angle detecting device of the present embodiment can meet the detection and adjustment of trailing wheel camber angle simultaneously,
And the adjustment of trailing wheel camber angle is simple, quick, saves working hour.
The trailing wheel camber angle detector of the above embodiment of the present invention and trailing wheel flare angle detecting device are applied and are assembled in rear overhang
Before testing, trailing wheel camber angle detector, rear overhang (unassembled tire) and subframe are pacified simultaneously for the detection of camber angle on line
On the table, after installing, subframe is parallel on the workbench dress, and pedestal is perpendicular to workbench, the first detection bar
And second detection bar be parallel to workbench and opposite with the brake disc on rear overhang；During detection, make the first detection bar and the second detection
For bar respectively to the direction movement of brake disc until with brake disc, the first displacement sensor perceives the first detection bar
Displacement (i.e. first detection bar with respect to first sensor distance change), second displacement sensor perceive it is described second detect bar
Displacement (the i.e. second detection bar is with respect to the distance change of second sensor), the first displacement sensor and second displacement sensor divide
The displacement of the first detection bar and the displacement of the second detection bar data processing unit is not sent to, data processing unit is according to simple
Geometrical principle can obtain trailing wheel camber angle, and trailing wheel flare angle signal will be obtained and be sent to display screen, display screen is with word
Form shows the trailing wheel camber angle of the rear overhang, testing staff by observe display screen can obtain the rear overhang trailing wheel camber angle it is big
It is small.Relative to the existing large-scale detection device using infrared C CD digital technologies, trailing wheel camber angle detector knot of the invention
Structure is simple, occupies little space, and is highly suitable for the detection of trailing wheel camber angle on rear overhang assembly line.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of trailing wheel camber angle detector, the detection applied to trailing wheel camber angle on rear overhang assembly line, which is characterized in that including
Pedestal, the first displacement detecting apparatus, second displacement detection device, is arranged on institute at the slip support abutment being slidably connected with the pedestal
The display screen and data processing unit on pedestal are stated, wherein,
First displacement detecting apparatus includes being arranged on the first cylinder on the outside of the slip support abutment, slides and is interspersed in described the
First in one cylinder detects bar and is arranged on first cylinder or the slip support abutment and is visited for perceiving described first
First displacement sensor of the displacement of measuring staff；
The second displacement detection device includes being arranged on the outside of the slip support abutment and with the second of the first cylinder interval
The the second detection bar and be arranged on second cylinder or the slip support abutment that cylinder, slip are interspersed in second cylinder
And the second displacement sensor for perceiving the displacement of the second detection bar；The second detection bar and the described first detection bar
It is parallel；
First displacement sensor and the second displacement sensor are respectively electrically connected to the data processing unit, the number
The display screen is connected to according to processing unit；
The inner end of first cylinder and the inner end of second cylinder are connect with the slip support abutment；
Sleeve installation is provided on position on the outside of the slip support abutment between first cylinder and second cylinder
Cylinder, the axis of first cylinder, the second cylinder and sleeve mounting cylinder are arranged in being generally aligned in the same plane on the sleeve mounting cylinder
There is a branch sleeve, the internal diameter of the centre bore of the wheel hub on the outer diameter and rear overhang of the branch sleeve matches.
2. trailing wheel camber angle detector according to claim 1, which is characterized in that be provided on the pedestal along the cunning
The scale of the glide direction extension of bearing is moved, the scale value of the scale gradually increases from benchmark position to both sides, the scale
Benchmark position is concordant with the axis of the sleeve mounting cylinder.
3. the trailing wheel camber angle detector according to claim 1-2 any one, which is characterized in that the trailing wheel camber angle
Detector further include for adjust the slip support abutment height regulating mechanism, the regulating mechanism include be fixedly connected on institute
State the nut on the inside of slip support abutment, the screw rod being connect with the nut thread and the turn-knob for being connected to the screw rod outboard end, institute
It states pedestal and is formed with through-hole corresponding to the side of the outboard end of the screw rod, the outboard end of the screw rod, which is formed with, is caught in described lead to
The annular groove of bore edges, to limit the axial movement of the screw rod.
4. the trailing wheel camber angle detector according to claim 1-2 any one, which is characterized in that the first detection bar
The first stopper section radially extended including the first straight-bar portion and along the first straight-bar portion opens up first on first cylinder
Sliding slot, the first sliding groove include the first straight trough extended along the first straight-bar portion and are vertically connected on the first straight trough tail
The first backstop slot at end, first stopper section are located in initial position in the first backstop slot；The second detection bar
The second stopper section radially extended including the second straight-bar portion and along the second straight-bar portion opens up second on second cylinder
Sliding slot, the second sliding slot include the second straight trough extended along the second straight-bar portion and are vertically connected on the second straight trough tail end
The second backstop slot, second stopper section in initial position be located at the second backstop slot in.
5. trailing wheel camber angle detector according to claim 4, which is characterized in that be provided with first in first cylinder
First spring is compressed in spring, first stopper section when being located in the first backstop slot；It is set in second cylinder
There is second spring, the second spring is compressed in second stopper section when being located in the second backstop slot.
6. a kind of trailing wheel flare angle detecting device, the detection applied to trailing wheel camber angle on rear overhang assembly line, which is characterized in that packet
The trailing wheel camber angle detector for include workbench, being arranged on the workbench and the subframe level peace for will be connect with rear overhang
Detent mechanism on the workbench, wherein,
The trailing wheel camber angle detector is slidably connected including the pedestal being vertically set on the workbench and the pedestal
Slip support abutment, the first displacement detecting apparatus, second displacement detection device, the display screen being arranged on the pedestal and data processing
Unit, wherein,
First displacement detecting apparatus includes being arranged on the first cylinder on the outside of the slip support abutment, slides and is interspersed in described the
First in one cylinder detects bar and is arranged on first cylinder or the slip support abutment and is visited for perceiving described first
First displacement sensor of the displacement of measuring staff；
The second displacement detection device includes being arranged on the outside of the slip support abutment and with the second of the first cylinder interval
The the second detection bar and be arranged on second cylinder or the slip support abutment that cylinder, slip are interspersed in second cylinder
And the second displacement sensor for perceiving the displacement of the second detection bar；The second detection bar and the described first detection bar
It is parallel；
First displacement sensor and the second displacement sensor are respectively electrically connected to the data processing unit, the number
The display screen is connected to according to processing unit；
The inner end of first cylinder and the inner end of second cylinder are connect with the slip support abutment；
Sleeve installation is provided on position on the outside of the slip support abutment between first cylinder and second cylinder
Cylinder, the axis of first cylinder, the second cylinder and sleeve mounting cylinder are arranged in being generally aligned in the same plane on the sleeve mounting cylinder
There is a branch sleeve, the internal diameter of the centre bore of the wheel hub on the outer diameter and rear overhang of the branch sleeve matches.
7. trailing wheel flare angle detecting device according to claim 6, which is characterized in that be provided on the pedestal along described
The scale of the glide direction extension of slip support abutment, the scale value of the scale gradually increase from benchmark position to both sides, the scale
Benchmark position it is concordant with the axis of the sleeve mounting cylinder.
8. the trailing wheel flare angle detecting device according to claim 6-7 any one, which is characterized in that the trailing wheel flare
Angle detector further include for adjust the slip support abutment height regulating mechanism, the regulating mechanism include be fixedly connected on
Nut on the inside of the slip support abutment, the screw rod being connect with the nut thread and the turn-knob for being connected to the screw rod outboard end,
The side that the pedestal corresponds to the outboard end of the screw rod is formed with through-hole, the outboard end of the screw rod be formed be caught in it is described
The annular groove at through-hole edge, to limit the axial movement of the screw rod.
9. the trailing wheel flare angle detecting device according to claim 6-7 any one, which is characterized in that the detent mechanism
Including the first multi-diameter shaft and the second multi-diameter shaft being erected on the workbench.
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| CN201410229455.0A CN105136096B (en) | 2014-05-27 | 2014-05-27 | Trailing wheel camber angle detector and trailing wheel flare angle detecting device |
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| CN201410229455.0A CN105136096B (en) | 2014-05-27 | 2014-05-27 | Trailing wheel camber angle detector and trailing wheel flare angle detecting device |
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| CN105136096B true CN105136096B (en) | 2018-07-06 |
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| CN105627988B (en) * | 2015-12-23 | 2018-04-20 | 珠海格力节能环保制冷技术研究中心有限公司 | The detection plate inclination checking method and system of a kind of rotor |
| CN112171259B (en) * | 2020-09-28 | 2021-09-14 | 东风汽车集团有限公司 | Rear suspension four-wheel positioning and adjusting device and method for multi-connecting-rod rear suspension vehicle during assembling |
| CN114034284B (en) * | 2021-10-26 | 2023-03-14 | 成都飞机工业（集团）有限责任公司 | Airplane wheel inclination angle measuring device and method |
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| UA80750C2 (en) * | 2005-10-21 | 2007-10-25 | Ukrainian Res Inst Prosthet | Device for measuring the camber angle of a wheelchair |
| CN201218714Y (en) * | 2008-04-08 | 2009-04-08 | 宁波跃进汽车前桥有限公司 | External inclination angle measurement check tool |
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| JP3328811B2 (en) * | 2000-06-15 | 2002-09-30 | 株式会社ハラダクニ | Composite vehicle inspection system incorporating toe angle and camber angle measuring devices |
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| UA80750C2 (en) * | 2005-10-21 | 2007-10-25 | Ukrainian Res Inst Prosthet | Device for measuring the camber angle of a wheelchair |
| CN201218714Y (en) * | 2008-04-08 | 2009-04-08 | 宁波跃进汽车前桥有限公司 | External inclination angle measurement check tool |
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