CN103439120A - Four-wheel aligner calibrating device based on belt drive - Google Patents

Four-wheel aligner calibrating device based on belt drive Download PDF

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Publication number
CN103439120A
CN103439120A CN2013103928690A CN201310392869A CN103439120A CN 103439120 A CN103439120 A CN 103439120A CN 2013103928690 A CN2013103928690 A CN 2013103928690A CN 201310392869 A CN201310392869 A CN 201310392869A CN 103439120 A CN103439120 A CN 103439120A
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China
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foreground
backstage
supporting leg
check part
screw
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CN2013103928690A
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CN103439120B (en
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邵承会
周子淳
郎东春
苏建
徐观
孟祥艳
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Jilin University
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Jilin University
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Abstract

The invention discloses a four-wheel aligner calibrating device based on belt drive. The four-wheel aligner calibrating device aims to solve the problem that quality arbitration cannot be carried out on a 3D four-wheel aligner. The four-wheel aligner calibrating device comprises a toe-in zero-point test frame, a front rack test portion, a rear rack test portion, a right belt drive device and a left belt drive device. The left belt drive device comprises a driving pulley, a front driven pulley, a front sensor clamping sleeve, a rear sensor clamping sleeve, a rear driven pulley and a belt. The outer end of the long ground foot wheel shaft of a front left combined supporting leg in the toe-in zero-point test frame is sleeved with and in key connection with the driving pulley, the left end of a front cross shaft in a left rack test portion is sleeved and locked with the right end of the front sensor clamping sleeve, the middle portion of the front sensor clamping sleeve is sleeved with the front driven pulley which is in key connection, the left end of a rear cross shaft in a left rack test portion is sleeved with the right end of the rear sensor clamping sleeve which is locked, the middle portion of the rear sensor clamping sleeve is sleeved with the rear driven pulley which is in key connection, and the belt is arranged in the pulley groove of the driving pulley, the pulley groove of the front driven pulley and the pulley groove of the rear driven pulley.

Description

Based on the belt driven type calibrating apparatus for four-wheel positioning instrument
Technical field
The present invention relates to a kind of automotive inspection equipment for auto industry field, more particularly, it relates to a kind of based on the belt driven type calibrating apparatus for four-wheel positioning instrument.
Background technology
Vehicle handling stability and roadholding are to be guaranteed by the Proper Match of vehicle wheel alignment parameter, any one misalignment of parameter just can cause automobile loss of control stability and straight-line travelling ability, accelerate tire wear, oil consumption is risen, degradation problem under security.
Four-wheel position finder is the most important checkout equipment of check wheel alignment parameter.The recoverable amount of current national four-wheel position finder reaches more than 30000, and the speed with annual 30% is increasing progressively, no matter yet be its production run or its use procedure, be difficult at present the performance of four-wheel position finder is effectively checked, can't guarantee the accuracy of detection of four-wheel position finder itself.
Four-wheel position finder has multiple function, as detected camber angle, toe-in angle, kingpin castor angle, kingpin inclination and wheel steering locking angle, wrapping angle etc.Four-wheel position finder can be realized by different detection methods and sensor the detection of above-mentioned parameter, because wheel kingpin castor angle and kingpin inclination can not directly be measured by the sensor of four-wheel position finder, but indirectly measure by corresponding mathematical model, so, different four-wheel position finder accuracy of detection are tested just extremely difficult.
At present, the verifying attachment that four-wheel position finder manufacturer is used mainly contains four kinds:
1. the fixed caliberating device in inclination angle
The accuracy of detection that this device only can be measured camber angle and toe-in angle to four-wheel position finder is tested, and the precision that can not detect kingpin castor angle and kingpin inclination etc. to four-wheel position finder is tested.
2. the verifying attachment of the four-wheel position finder that Jilin University researchs and develops
The Chinese patent notification number is CN1181327B, and the day for announcing is on Dec 22nd, 2004, and the patent No. is ZL03110944.6, the inventor: Soviet Union builds.This patent completes the simulation to wheel orientation angle by a series of leverages.In use there is following problem in this device:
1) complex structure, requirement on machining accuracy is high, has increased cost;
2) transmission chain length, cumulative errors is large;
3) Kingpin inclination and stub camber angle metering method are the vernier metering, manufacture complicated;
4) can not check thrust angle and steering angle.
3. the caliberating device of the four-wheel position finder that quantitative study institute in Liaoning Province's researchs and develops
In use there is following problem in this device:
1) complex structure, requirement on machining accuracy is high, has increased cost;
2) transmission chain length, cumulative errors is large;
3) can not check kingpin castor angle, steering angle;
4) the left and right two-wheeled can not self-movement, and antero posterior axis can not self-movement;
5) stated accuracy, principle, parameter all do not meet the requirement of the standard JT/T505-2004 of Ministry of Communications.
4. the calibrating installation of the vehicle vertically and horizontally flat non-relating angle modulation type fourth wheel orientator that Jilin University researchs and develops
In use there is following problem in this device:
1) equipment volume is larger, after leveling is installed, generally can not move.Therefore this calibrating installation is applicable to not roving situation;
2) angular measure adopts dividing head to carry out, and it is longer that data read the time on the one hand, has increased on the other hand weight and the cost of equipment;
3) adopt the sphere guide rail structure to carry out the transmission of power, higher to sphere guide rail requirement on machining accuracy;
4) adopt the antero posterior axis split-type structural, increased the equipment leveling time;
5) although adopt self-centering chuck accurately to locate, increased the overall weight of equipment.
5. the calibrating installation of the explicit four-wheel position finder of monolithic devices Vehicular data that Jilin University researchs and develops
In use there is following problem in this device:
1) adopt arc-shaped guide rail to adjust kingpin castor angle and kingpin inclination, this arc-shaped guide rail machining precision is high, has increased processing cost;
2) adjust the caster angle by feed screw nut, this sets of transmission mechanism has increased weight of equipment and processing cost;
3) simulation stub lower end by turn to and be connected with joint spider, increased connecting link, because this equipment requirement simulation main pin axis passes through spider center, so assembly difficulty is larger.
6. the calibrating installation of the portable digital display vehicle four-wheel position indicator that Jilin University researchs and develops
In use there is following problem in this device:
1) the integral device volume is large, is not easy to transportation;
2), in the zero point checkout procedure, it is unstable or without the registration phenomenon that sensor is prone to registration, affects the calibrating quality of four-wheel position finder;
3) upper and lower slide rail locking mechanism structure complexity, increased processing, assembly cost.
Summary of the invention
Technical matters to be solved by this invention is to overcome in prior art the problem that can not realize the 3D four-wheel position finder of widespread use on market is carried out quality arbitration that exists, a kind of the have synchronous rotation of simulated automotive wheel and various orientation angle function are provided, precision is higher than 3D four-wheel position finder accuracy of detection, can meet that national quality superintendent office and manufacturer carry out on the spot to the quality of 3D four-wheel position finder that calibrating fast requires based on the belt driven type calibrating apparatus for four-wheel positioning instrument.
For solving the problems of the technologies described above, the present invention adopts following technical scheme to realize: describedly based on the belt driven type calibrating apparatus for four-wheel positioning instrument, include test jig at prenex zero point, front platform check part, rear stand check part and belt transmission.Described belt transmission includes right leather belt gearing and left leather belt gearing, and the left leather belt gearing includes driving pulley, front driven pulley, front sensor chuck, rear sensor chuck, rear driven pulley and belt.
It is that key connects that described driving pulley is sleeved in the front left combined support leg in test jig at prenex zero point the outer end of caster axle longways, the right-hand member of front sensor chuck is sleeved on the left end of left front the front transverse axis in the check part and adopts the locking of front sensor chuck locking knob, the middle place that front driven pulley is sleeved on the front sensor chuck is that key connects, the right-hand member of rear sensor chuck is sleeved on the left end of left back the rear cross shaft in the check part and adopts rear sensor chuck locking knob locking, the middle place that rear driven pulley is sleeved on rear sensor chuck is that key connects, belt is arranged on driving pulley, in the race of front driven pulley and rear driven pulley.
Right leather belt gearing described in technical scheme is identical with the structure of left leather belt gearing, and the right leather belt gearing also includes driving pulley, front driven pulley, front sensor chuck, rear sensor chuck, rear driven pulley and belt.It is that key connects that described driving pulley is sleeved in the front right combined support leg in test jig at prenex zero point the outer end of caster axle longways, the left end of front sensor chuck is sleeved on the right-hand member of right front the front transverse axis in the check part and adopts the locking of front sensor chuck locking knob, the middle place that front driven pulley is sleeved on the front sensor chuck is that key connects, the left end of rear sensor chuck is sleeved on the right-hand member of right back the rear cross shaft in the check part and adopts rear sensor chuck locking knob locking, the middle place that rear driven pulley is sleeved on rear sensor chuck is that key connects, belt is arranged on driving pulley, in the race of front driven pulley and rear driven pulley.
Test jig at prenex zero point described in technical scheme comprises front beam, rear cross beam, right vertical beam, left longeron, front right combined support leg, front left combined support leg, rear right combined support leg and rear left combined support leg.The two ends of front beam are equipped with and adopt nut to be fixedly connected with right vertical beam with the through hole of left longeron front end, the two ends of rear cross beam are equipped with and adopt nut to be fixedly connected with the rectangular frame that becomes a plane with right vertical beam with the through hole of left longeron rear end, and the bottom surface at the top end face of the front right combined support leg vertically arranged, front left combined support leg, rear right combined support leg and rear left combined support leg and four angles of rectangular frame contacts and adopts screw to fix.The right vertical beam that described front platform checks part to be arranged in toe-in test jig at zero point is that bolt is fixedly connected with the front end of left longeron, and the right vertical beam that rear stand check part is arranged in toe-in test jig at zero point is that bolt is fixedly connected with the rear end of left longeron.
Front right combined support leg described in technical scheme and front left combined support leg all include the ground castor, longways caster axle, driving pulley, trundle bracket, castor connecting board, supporting leg pipe, supporting leg web joint, supporting leg adjusting screw(rod) and supporting leg base.The upper end of described supporting leg pipe is welded with the supporting leg web joint, the lower end of supporting leg pipe is welded with the ground castor connecting board, the ground castor connecting board is threaded with supporting leg adjusting screw(rod) upper end, the lower end supporting leg base of supporting leg adjusting screw(rod) is welded to connect, and the axis of supporting leg adjusting screw(rod) is vertical with the bottom surface of supporting leg base.The top installing plate of ground trundle bracket is with bolts with the ground castor connecting board, vertically fixedly mount the hold-down arm that two lower ends that are parallel to each other are processed with horizontal through hole on the installing plate bottom surface, top of ground trundle bracket, caster axle adopts bearing to be arranged in the horizontal through hole on the ground trundle bracket as being rotationally connected longways, lower margin wheel is sleeved in the lower margin wheel support on the caster axle longways between two vertical hold-down arms as key connects, and it is the key connection that driving pulley is sleeved in the ground trundle bracket vertically on the caster axle longways in the hold-down arm outside.
The slab construction part that supporting leg web joint described in technical scheme is rectangle, be evenly arranged the slotted eye of mounting screw on the supporting leg web joint, the supporting leg web joint is vertical with the axis of rotation of supporting leg pipe.The slab construction part that described ground castor connecting board is rectangle, ground castor connecting board left-half is evenly arranged 4 through holes, ground castor connecting board right half part is along a threaded hole of centerline direction processing of supporting leg pipe, and the ground castor connecting board is vertical with the axis of rotation of supporting leg pipe.
Rear right combined support leg described in technical scheme and rear left combined support leg are except short ground caster axle and caster axle structure longways are not identical, other parts of rear right combined support leg and rear left combined support leg are identical with the component structural in front right combined support leg and front left combined support leg, rear right combined support leg and rear left combined support leg all castor, short ground caster axle, trundle bracket, castor connecting board, supporting leg pipe, supporting leg web joint, supporting leg adjusting screw(rod) and supporting leg base.Described supporting leg pipe is the bar class formation part of being made by pipe, its upper end is welded with the supporting leg web joint of the rectangle vertical with the axis of rotation of supporting leg pipe, the ground castor connecting board of the rectangle that the lower end welding of supporting leg pipe is vertical with supporting leg pipe axis of rotation, the ground castor connecting board is threaded with supporting leg adjusting screw(rod) top, the lower end of supporting leg adjusting screw(rod) is welded with the supporting leg base, and the axis of rotation of supporting leg adjusting screw(rod) is vertical with the bottom surface of supporting leg base; The ground trundle bracket is a forked members, top is the top installing plate that is evenly arranged 4 through holes, the top installing plate is with bolts with the ground castor connecting board, vertically fixedly mount the hold-down arm that two lower ends that are parallel to each other are processed with horizontal through hole on installing plate bottom surface, top, short ground caster axle adopts bearing to be arranged in the ground trundle bracket in the horizontal through hole on two vertical hold-down arms as being rotationally connected, and it is the key connection that the lower margin wheel is sleeved in the lower margin wheel support on the short ground caster axle between two vertical hold-down arms.
Front platform described in technical scheme check part is comprised of foreground base, left front check part, right front check part and connecting link.Form described left front check part identical with the component structural of right front check part.The foreground base is a tower structure part formed with shaped steel and Plate Welding, the bottom surface at base two ends, foreground and the right front erecting bed of right vertical beam contact with the left front erecting bed of left longeron and adopt register pin to be fixedly connected with bolt, the two ends of foreground base upper table surface process left mounting plane and right mounting plane, be provided with through hole and T-slot on left mounting plane and right mounting plane, left front check part and right front check part are arranged on successively on left mounting plane on the base of foreground and right mounting plane and adopt screw to fix, the axis of rotation conllinear of the front transverse axis that left front check part is identical with two structures in right front check part, the front transverse axis that left front check part is identical with two structures in right front check part points to the left and right sides, left front check part is connected by connecting link with right front check part.
Left front check part described in technical scheme all is comprised of level angle adjustment member, mechanical interface and horizontal location part and caster adjustment member with right front check part.The level angle adjustment member of left front check in part includes simulation stub, vertical survey dish, foreground revolution screw, foreground revolution leading screw, foreground revolution leading screw seat, foreground revolution leading screw handwheel, foreground revolution leading screw seat support plate, simulation stub adapter sleeve, stub fork, connecting link bearing, stub fork support, foreground rotary disk, foreground revolution screw bearing, connection bearing pin and central shaft.The foreground rotary disk is screwed on the left mounting plane that is arranged on the foreground base, stub is pitched between support and foreground rotary disk as being rotationally connected, central shaft inserts stub and pitches in the through holes on two fork walls of support as being rotationally connected, the stub fork adopts connection bearing pin and central shaft to be rotationally connected, and the top of stub fork is inserted for being fixedly connected with in the lower end of simulation stub.The vertical survey dish is fixedly mounted on the upper end of simulation stub, and simulation stub adapter sleeve is sleeved on the simulation stub as being fixedly connected with, and the leading flank that stub is pitched support is fixedly connected with the connecting link bearing be rotationally connected with connecting link; The bottom of foreground revolution leading screw seat and foreground revolution leading screw seat support plate are rotationally connected, foreground revolution leading screw seat support plate is fixed on the left processing plane of foreground base, foreground revolution leading screw inserts in the leading screw block hole on foreground revolution leading screw seat as being rotationally connected, the rear end of foreground revolution leading screw is fixedly connected with foreground revolution leading screw handwheel, front end is equipped with as being threaded with foreground revolution screw, foreground revolution screw and foreground revolution screw bearing are for being rotationally connected, and foreground revolution screw bearing is fixedly connected on the bottom of the right side of stub fork support; Check mechanical interface and horizontal location in part partly to include swing arm, transverse axis contiguous block, transverse axis pull bar, front transverse axis and zero-point positioning piece for left front.The fork of swing arm right-hand member is sleeved on the central shaft two ends for being flexibly connected, the through hole of the right-hand member insertion swing arm left end of front transverse axis is interior for being fixedly connected with, the transverse axis contiguous block is set with and is fixed on front transverse axis, the right-hand member of the left end insertion front sensor chuck of front transverse axis is interior for being fixedly connected with, the left end of transverse axis pull bar adopts screw to be fixed on the trailing flank of transverse axis contiguous block, the right-hand member of transverse axis pull bar is threaded with the trailing flank of simulation stub adapter sleeve, the zero-point positioning piece is placed on the left mounting plane of foreground base, and the top end face of zero-point positioning piece is connected with the bottom surface contact of swing arm left end, check the caster adjustment member in part to include reverse caster angular encoder support for left front, the short rocker arm| bearing, reverse caster angular encoder rigid support, the reverse caster angular encoder, short rocker arm|, lower screw clutch), lower leading screw seat, lower leading screw, upper leading screw, upper screw clutch, upper leading screw seat, upper slide rail, the stub top shoe, the stub sliding block, long rocking arm, Kingpin inclination angular encoder rigid support, the Kingpin inclination angular encoder, Kingpin inclination angular encoder support, long rocker arm support, the short rocker arm| lock handle, glidepath, the top shoe lock-screw, the sliding block lock-screw, long rocking arm lock handle, upper sliding-rail sliding and glidepath slide block.The left side that the short rocker arm| bearing is fixed on the foreground base adds on installed surface, the reverse caster angular encoder is connected with screw with the upper end of reverse caster angular encoder rigid support, the lower end of reverse caster angular encoder rigid support is fixedly connected with the right-hand member of reverse caster angular encoder support, the left end of reverse caster angular encoder support is connected with the right-hand member screw of short rocker arm| bearing, the rotation axis of reverse caster angular encoder inserts in two through holes of short rocker arm| bearing upper end, the short rocker arm| lock handle inserts in the through hole before the gap on the left support arm as being rotationally connected, the short rocker arm| lock handle inserts threaded hole behind the gap on the left support arm for being threaded simultaneously, the short rocker arm| lower end is sleeved on the rotation axis of reverse caster angular encoder as being fixedly connected with, the through hole that the right-hand member of glidepath inserts the short rocker arm| upper end is fixedly connected with the through hole inner bolt of lower leading screw seat lower end, the left end of cylindrical glidepath inserts in the through hole of glidepath slide block, lower leading screw is connected with the through hole of lower screw clutch movingly with lower leading screw seat, the left end of lower leading screw is threaded with the threaded hole on the glidepath slide block, the right-hand member of lower leading screw is adjusted knob with lower leading screw and is fixedly connected with.
Rear stand check part described in technical scheme comprises background base, right back check part and left back check part.Form described right back check part identical with the component structural of left back check part.Background base is a weld assembly formed with channel-section steel and Plate Welding, the rear right erecting bed of the bottom surface at background base two ends and right vertical beam rear end in prenex zero point test jig contacts and adopts register pin to be fixedly connected with screw with the rear left erecting bed of left longeron rear end, the two ends of background base upper table surface process right mounting plane and left mounting plane, right back check part is arranged on the right mounting plane and left mounting plane of background base upper table surface successively with left back check part, right back check part pointed to right side and left side with two rear cross shafts in left back check part, right back check part checks the axis of rotation of two rear cross shafts in part to want conllinear with left back.
Left back check part described in technical scheme all comprises rear cross shaft, backstage stand, backstage elevating screw seat, backstage elevating screw, horizontal seat, backstage revolution leading screw seat cushion, backstage revolution leading screw seat, backstage revolution leading screw, level angle scrambler, bearing seat cushion, level angle scrambler rigid support, camber angular encoder, camber angular encoder rigid support, backstage rotary disk and backstage lifting support with right back check part.The backstage rotary disk adopts screw to be fixedly mounted on together with the bearing seat cushion on the left mounting plane of background base, the backstage stand adopts bearing to become to be rotationally connected with the backstage rotary disk, the level angle scrambler adopts level angle scrambler rigid support to be arranged on the bottom surface of background base, the rotation axis of level angle scrambler inserts background base, the bearing seat cushion with after the rotary disk of backstage, with the backstage stand, adopt screw to be fixedly connected with, the shell of camber angular encoder is fixedly connected with camber angular encoder rigid support, the lower end of camber angular encoder rigid support is fixedly mounted on the front end of backstage stand, the rotation axis insertion left front support arm of backstage stand of camber angular encoder and two through holes of left back sway brace upper end are interior for being rotationally connected, horizontal cover for seat is contained on the rotation axis of camber angular encoder as being fixedly connected with, rear cross shaft is processed into multidiameter, the interior one-tenth of through hole that the left end of rear cross shaft inserts horizontal seat right-hand member is fixedly connected with, the left end of backstage lifting support is fixedly mounted on the right side of the left rear support arm of backstage stand, backstage elevating screw seat is rotatably connected on the front end face of backstage lifting support left end, in the through hole of elevating screw insertion backstage, backstage elevating screw seat and with horizontal seat, be threaded, the installation shaft of revolution leading screw seat lower end, backstage is inserted backstage revolution leading screw seat cushion and is rotatably connected on the right mounting plane of background base, the left end of backstage revolution leading screw is fixedly connected with backstage revolution leading screw adjustment knob after inserting the through hole that turns round the leading screw seat in backstage, the right-hand member of backstage revolution leading screw is threaded with the front end of backstage stand.The axis of rotation of level angle scrambler, camber angular encoder and rear cross shaft intersects at a point orthogonally.
Compared with prior art the invention has the beneficial effects as follows:
1. of the present invention is to improve on the basis of original split reassembling type vehicle four-wheel position finder calibrating installation based on the belt driven type calibrating apparatus for four-wheel positioning instrument, adopt combined support leg structure, both can static work on worktable based on the belt driven type calibrating apparatus for four-wheel positioning instrument, work movably before and after again can be on worktable.
2. of the present inventionly based on the belt driven type calibrating apparatus for four-wheel positioning instrument, increased the belt synchronous transmission device, realize being labeled as 101 front sensor chuck and be labeled as 103 rear sensor chuck and synchronizeed and rotate with the ground castor that is labeled as 4, thereby realized the calibrating to the 3D four-wheel position finder.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is the axonometric projection graph formed based on belt driven type calibrating apparatus for four-wheel positioning instrument structure of the present invention;
Fig. 2 is the prenex axonometric projection graph that zero point, the test jig structure formed based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention;
Fig. 3 is the axonometric projection graph that the front combined support leg structure based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention forms;
Fig. 4 is the axonometric projection graph that the rear combined support leg structure based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention forms;
Fig. 5 is the axonometric projection graph of the front platform check part based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention;
Fig. 6 is the axonometric projection graph of level angle adjustment member in the front platform check part based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention;
Fig. 7 is the axonometric projection graph of the left foreground check of the front platform check part part based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention;
Fig. 8 is the axonometric projection graph after the left foreground check of front platform check part partial rotation 180 degree based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention;
Fig. 9 is the axonometric projection graph of the rear stand check part based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention;
Figure 10 is the axonometric projection graph of the right backstage check of the rear stand check part part based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention;
Figure 11 is the axonometric projection graph after the right backstage check of rear stand check part partial rotation 180 degree based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention;
Figure 12 is the axonometric projection graph that the left leather belt transmission structures based in the belt driven type calibrating apparatus for four-wheel positioning instrument of the present invention forms;
In figure: 1. prenex zero point test jig, 2. front platform is checked part, 3. rear stand is checked part, 4. castor, 5. front beam, 6. rear cross beam, 7. right vertical beam, 8. left longeron, 9. front right combined support leg, 10. front left combined support leg, 11. rear right combined support leg, 12. rear left combined support leg, 13. foreground base, 14. left front check part, 15. right front check part, 16. connecting link, 17. swing arm, 18. transverse axis contiguous block, 19. right leather belt gearing, 20. left leather belt gearing, 21. transverse axis pull bar, 22. simulation stub, 23. vertical survey dish, 24. foreground revolution screw, 25. foreground revolution leading screw, 26. foreground revolution leading screw seat, 27. foreground revolution leading screw handwheel, 28. foreground revolution leading screw seat support plate, 29. lock-screw, 30. simulation stub adapter sleeve, 31. stub fork, 32. front transverse axis, 33. connecting link bearing, 34. stub fork support, 35. foreground rotary disk, 36. reverse caster angular encoder support, 37. short rocker arm| bearing, 38. reverse caster angular encoder rigid support, 39. reverse caster angular encoder, 40. short rocker arm|, 41. lower screw clutch, 42. lower leading screw is adjusted knob, 43. lower leading screw seat, 44. lower leading screw, 45. upper leading screw, 46. upper screw clutch, 47. upper leading screw seat, 48. upper leading screw is adjusted knob, 49. upper slide rail, 50. stub top shoe, 51. stub sliding block, 52. long rocking arm, 53. Kingpin inclination angular encoder rigid support, 54. Kingpin inclination angular encoder, 55. Kingpin inclination angular encoder support, 56. long rocker arm support, 57. foreground rotary disk pointer, 58. short rocker arm| lock handle, 59. foreground revolution screw bearing, 60. glidepath, 61. top shoe lock-screw, 62. sliding block lock-screw, 63. long rocking arm lock handle, 64. upper sliding-rail sliding, 65. glidepath slide block, 66. connection bearing pin, 67. central shaft set nut, 68. caster axle longways, 69. background base, 70. right back check part, 71. left back check part, 72. short ground caster axle, 73. rear cross shaft, 74. backstage stand, 75. the backstage elevating screw is adjusted knob, 76. backstage elevating screw seat, 77. backstage elevating screw, 78. horizontal seat, 79. backstage revolution leading screw is adjusted knob, 80. backstage revolution leading screw seat cushion, 81. backstage revolution leading screw seat, 82. backstage revolution leading screw, 83. level angle scrambler, 84. bearing seat cushion, 85. background base web joint, 86. camber angular encoder, 87. camber angular encoder rigid support, 88. backstage rotary disk pointer, 89. backstage rotary disk, 90. backstage lifting support, 91. zero-point positioning piece, 92. central shaft, 93. driving pulley, 94. ground trundle bracket, 95. ground castor connecting board, 96. supporting leg pipe, 97. supporting leg web joint, 98. supporting leg adjusting screw(rod), 99. supporting leg base, 100. front driven pulley, 101. front sensor chuck, 102. front sensor chuck locking knob, 103. rear sensor chuck, 104. rear sensor chuck locking knob, 105. rear driven pulley, 106. belt.
Embodiment
Below in conjunction with accompanying drawing, the present invention is explained in detail:
Consult Fig. 1, of the present invention based on the belt driven type calibrating apparatus for four-wheel positioning instrument mainly by prenex zero point test jig 1, front platform check part 2, rear stand check part 3 and belt transmission (comprising right leather belt gearing 19 and left leather belt gearing 20) form.Toe-in test jig 1 at zero point, as the installation matrix of front platform check part 2 and rear stand check part 3, completes the check to the prenex zero point of four-wheel position finder; Front platform check part 2 is arranged on the front erecting bed of right vertical beam 7 in test jig 1 at prenex zero point and left longeron 8 and adopts bolt to be fixedly connected with, and completes the check to four-wheel position finder front-wheel reverse caster angle, Kingpin inclination angle, toe-in angle, camber angle and wheel steering angle parameter; Rear stand check part 3 is arranged on the rear erecting bed of right vertical beam 7 in test jig 1 at prenex zero point and left longeron 8 and adopts bolt to be fixedly connected with, and completes the check of real wheel toe angle to four-wheel position finder, camber angle, wheel steering angle parameter; Right leather belt gearing 19 adopts locking to be connected with the front transverse axis 32 on device right side with rear cross shaft 73 with rear sensor chuck 103 by front sensor chuck 101 respectively, and left leather belt gearing 20 adopts locking to be connected with the front transverse axis 32 in device left side with rear cross shaft 73 with rear sensor chuck 103 by front sensor chuck 101 respectively.
Consult Fig. 2, described toe-in test jig at zero point 1 mainly is comprised of with rear left combined support leg 12 front beam 5, rear cross beam 6, right vertical beam 7, left longeron 8, front right combined support leg 9, front left combined support leg 10, rear right combined support leg 11.
Described front beam 5 is the bar class formation part that structure is identical with rear cross beam 6.Front beam 5 is front intermediate beam and the rear intermediate beam of being made by pipe with the interlude of rear cross beam 6, two ends are the left and right multidiameter that structure is identical, and adopt welding manner to be fixedly connected with, before, the two ends of intermediate beam are welded with front left multidiameter and front right multidiameter, the axis of rotation conllinear of front left multidiameter, front intermediate beam and front right multidiameter; The two ends of rear intermediate beam are welded with rear left multidiameter and rear right multidiameter, the axis of rotation conllinear of rear left multidiameter, rear intermediate beam and rear right multidiameter.Front left multidiameter, front right multidiameter, rear left multidiameter are identical with the structure of rear right multidiameter, front left multidiameter, front right multidiameter, rear left multidiameter and rear right multidiameter all are comprised of major diameter axle and the minor diameter optical axis of axis of rotation conllinear, one (outward) end of major diameter axle is the threaded thread end of processing, major diameter axle and right vertical beam 7 with adopt again nut to be fixedly connected with the thread end of major diameter axle after the through hole of left longeron 8 front and back ends is equipped, the other end of major diameter axle is the link be connected with rear intermediate beam two ends with front intermediate beam.The thread end of the major diameter axle of front left multidiameter, front right multidiameter, rear left multidiameter and rear right multidiameter and an end of minor diameter optical axis link into an integrated entity.
Described right vertical beam 7 is identical bar class formation parts of structure of being made by square tube with left longeron 8.The upper workplace of right vertical beam 7 front ends and rear end is welded with respectively the installation front platform and checks the right front erecting bed of part 2 and the right back erecting bed that the rear stand of installation is checked part 3, and the upper workplace of left longeron 8 front ends and rear end is welded with respectively the installation front platform and checks the left front erecting bed of part 2 and the left back erecting bed that the rear stand of installation is checked part 3; The front end of right vertical beam 7 and rear end flatly are provided with front right through hole and the rear right through hole that front right multidiameter and rear right multidiameter are installed, and the front end of left longeron 8 and rear end flatly are provided with front left through hole and the rear left through hole that front left multidiameter and rear left multidiameter are installed.The lateral vertical at the front right through hole on right vertical beam 7 and the axis of rotation of rear right through hole and front right through hole and rear right through hole place, the lateral vertical at the front left through hole on left longeron 8 and the axis of rotation of rear left through hole and front left through hole and rear left through hole place, and the front right through hole on right vertical beam 7 equates with the left pitch-row of rear left through hole with the front left through hole on left longeron 8 with the right pitch-row of rear right through hole.
The front left multidiameter at front beam 5 two ends and the front left major diameter axle in the front right multidiameter and front right major diameter axle and left longeron 8 are equipped with front left through hole and the front right through hole of right vertical beam 7 front ends, adopt the front left nut to be fixedly connected with the equipped screw thread of front right major diameter axle with the front left major diameter axle in the front right multidiameter with the front left multidiameter with the front right nut; The rear left multidiameter at rear cross beam 6 two ends and the rear left major diameter axle in the rear right multidiameter and rear right major diameter axle and left longeron 8 are equipped with rear left through hole and the rear right through hole of right vertical beam 7 rear ends, adopt the rear left nut to be fixedly connected with the equipped screw thread of rear right major diameter axle with the rear left major diameter axle in the rear right multidiameter with the rear left multidiameter with the rear right nut, form the rectangle rack of a horizontal positioned.
Consult Fig. 3, described front combined support leg comprises front right combined support leg 9 and front left combined support leg 10, the two structure is identical, front right combined support leg 9 and front left combined support leg 10 all include ground castor 4, longways caster axle 68, driving pulley 93, trundle bracket 94, castor connecting board 95, supporting leg pipe 96, supporting leg web joint 97, supporting leg adjusting screw(rod) 98 and supporting leg base 99.
Described supporting leg pipe 96 is bar class formation parts of being made by pipe, and the supporting leg web joint 97 of the rectangle vertical with supporting leg pipe 96 axiss of rotation is welded in its upper end, is evenly arranged the slotted eye of mounting screw on supporting leg web joint 97; The lower end of supporting leg pipe 96 is welded with the ground castor connecting board 95 of the rectangle vertical with supporting leg pipe 96 axiss of rotation, is evenly arranged 4 through holes on ground castor connecting board 95 left-half; Centerline direction along supporting leg pipe 96 on ground castor connecting board 95 right half parts is processed a threaded hole, with supporting leg adjusting screw(rod) 98 tops, be threaded, the lower end of supporting leg adjusting screw(rod) 98 is welded with supporting leg base 99, and the axis of supporting leg adjusting screw(rod) 98 is vertical with the bottom end face of supporting leg base 99.Rotary support leg base 99 can be regulated the height of front right combined support leg 9 and front left combined support leg 10.Ground trundle bracket 94 is forked members, top is the top installing plate that is evenly arranged 4 through holes, the top installing plate is with bolts with ground castor connecting board 95, vertically fixedly mount the hold-down arm that two lower ends that are parallel to each other are processed with horizontal through hole on installing plate bottom surface, top, caster axle 68 adopts bearing to be arranged in the horizontal through hole on ground trundle bracket 94 as being rotationally connected longways, it is the key connection on the caster axle longways 68 between two vertical hold-down arms that ground castor 4 is sleeved in ground trundle bracket 94, it is that key connects on the caster axle longways 68 outside vertical hold-down arm that driving pulley 93 is sleeved in ground trundle bracket 94.
Consult Fig. 4, described rear combined support leg comprises rear right combined support leg 11 and rear left combined support leg 12, the two structure is identical, rear right combined support leg 11 and rear left combined support leg 12 are except short ground caster axle 72 and caster axle 68 longways are not identical, other parts and front right combined support leg 9 of rear right combined support leg 11 and rear left combined support leg 12 is identical with the parts of front left combined support leg 10, be that rear right combined support leg 11 all includes ground castor 4 with rear left combined support leg 12, short ground caster axle 72, ground trundle bracket 94, ground castor connecting board 95, supporting leg pipe 96, supporting leg web joint 97, supporting leg adjusting screw(rod) 98 and supporting leg base 99.
Described supporting leg pipe 96 is bar class formation parts of being made by pipe, and the supporting leg web joint 97 of the rectangle vertical with supporting leg pipe 96 axiss of rotation is welded in its upper end, is evenly arranged the slotted eye of mounting screw on supporting leg web joint 97; The ground castor connecting board 95 of the rectangle that the lower end welding of supporting leg pipe 96 is vertical with supporting leg pipe 96 axiss of rotation, be evenly arranged 4 through holes on ground castor connecting board 95 left-half; Ground castor connecting board 95 right half parts are along a threaded hole of centerline direction processing of supporting leg pipe 96, with supporting leg adjusting screw(rod) 98 tops, be threaded, the lower end of supporting leg adjusting screw(rod) 98 is welded with supporting leg base 99, and the axis of supporting leg adjusting screw(rod) 98 is vertical with the bottom end face of supporting leg base 99.Rotary support leg base 99 can be regulated the height of rear right combined support leg 11 and rear left combined support leg 12.Ground trundle bracket 94 is forked members, top is the top installing plate that is evenly arranged 4 through holes, the top installing plate is with bolts with ground castor connecting board 95, vertically fixedly mount the hold-down arm that two lower ends that are parallel to each other are processed with horizontal through hole on installing plate bottom surface, top, short ground caster axle 72 adopts bearings to be arranged in ground trundle bracket 94 in the horizontal through hole on two vertical hold-down arms as being rotationally connected, and it is the key connection that ground castor 4 is sleeved in ground trundle bracket 94 on the short ground caster axle 72 between two vertical hold-down arms.
Described front right combined support leg 9, front left combined support leg 10, rear right combined support leg 11 all are arranged on vertically on four jiaos of Chu bottom surfaces of rectangle rack by supporting leg web joint 97 with rear left combined support leg 12, and are screwed connection.99 to four ground castors 4 of supporting leg base of rotation front right combined support leg 9, front left combined support leg 10, rear right combined support leg 11 and rear left combined support leg 12 bottoms are unsettled, can regulate the height at four angles of rectangle rack, make toe-in test jig 1 at zero point in horizontality, make to be still on worktable and to work based on the belt driven type calibrating apparatus for four-wheel positioning instrument; 99 to four supporting leg bases 99 of supporting leg base of rotation front right combined support leg 9, front left combined support leg 10, rear right combined support leg 11 and rear left combined support leg 12 bottoms are unsettled, four ground castors 4 are landed, can make based on mobile working before and after the belt driven type calibrating apparatus for four-wheel positioning instrument is on worktable.
Consult Fig. 5, front platform check part 2 mainly is comprised of foreground base 13, left front check part 14, right front check part 15 and connecting link 16.
Foreground base 13 is tower structure parts that form with shaped steel and Plate Welding, and the two ends, left and right of foreground base 13 upper table surfaces process the left and right mounting plane, process through hole and T-slot on the mounting plane of left and right.Foreground base 13 is arranged on test jig 1 front erecting bed at prenex zero point, on the left front erecting bed that is arranged on left longeron 8 front ends and the right front erecting bed of right vertical beam 7 front ends, adopts register pin to locate and screw is fixed.The left and right mounting plane of foreground base 13 upper table surfaces is equipped with left front check part 14 and right front check part 15 successively, assembled left front check part 14 and right front check part 15 mirror images are arranged on the left and right mounting plane of foreground base 13 upper table surfaces symmetrically, and the axis of rotation of the front transverse axis 32 of two sensor chucks in left front check part 14 and right front check part 15 is wanted conllinear.
Left front check part 14 in front platform check part 2 is connected by connecting link 16 with right front check part 15, form left front check part 14 identical with the design of part of right front check part 15, left front check part 14 and right front check part 15 all are comprised of level angle adjustment member, mechanical interface and horizontal location part and caster adjustment member.
Left front check part 14 in front platform check part 2:
1. consult Fig. 6 to Fig. 8, the level angle adjustment member includes simulation stub 22, vertical survey dish 23, foreground revolution screw 24, foreground revolution leading screw 25, foreground revolution leading screw seat 26, foreground revolution leading screw handwheel 27, foreground revolution leading screw seat support plate 28, lock-screw 29, simulation stub adapter sleeve 30, stub fork 31, connecting link bearing 33, stub fork support 34, foreground rotary disk 35, foreground rotary disk pointer 57, foreground revolution screw bearing 59, connects bearing pin 66, central shaft 92.
Foreground rotary disk 35 is screwed on the left mounting plane be arranged in foreground base 13 upper table surfaces, the bottom face of stub fork support 34 is connected with the top end face contact of foreground rotary disk 35, between stub fork support 34 and foreground rotary disk 35, adopt bearing (with vertical bearing pin) to become to be rotationally connected, central shaft 92 inserts stub and pitches in the through holes on two fork walls of support 34 as being rotationally connected, the centre position of the central shaft 92 between 34 liang of fork walls of stub fork support is along a radial direction through hole of diametric(al) processing, two yokes of stub fork 31() by this radial direction through hole be connected bearing pin 66 and central shaft 92 is rotationally connected, stub fork 31 is pitched between support 34 and is become being rotationally connected of both direction with stub.Simulation stub 22 1 (under) hold in the top through hole that inserts stub fork 31 to become to be fixedly connected with; Another (on) the upper plane of the upper vertical survey dish 23(vertical survey dish 23 of end fixed installation vertical with the axis of simulating stub).Simulation stub adapter sleeve 30 is fixedly set on simulation stub 22, and lock-screw 29 is threaded with the trailing flank of simulation stub adapter sleeve 30.The bottom of stub fork support 34 (the through hole belows on two fork walls) one (afterwards) side is screwed and is connected with foreground rotary disk pointer 57, the scale on pointed foreground rotary disk 35; Another (front) side adopts screw to be fixedly connected with connecting link bearing 33, the left end of connecting link 16 adopts bearing (with the bearing bearing pin) to be rotationally connected with 33 one-tenth of connecting link bearings, the right-hand member of connecting link 16 adopts 33 one-tenths of connecting link bearings that in bearing (with the bearing bearing pin) that structure is identical and right front check part 15, structure is identical to be rotationally connected, and connecting link 16 has connected left front check part 14 and right front and checks part 15.
The bottom of foreground revolution leading screw seat 26 and foreground revolution leading screw seat support plate 28 are rotationally connected, on the left mounting plane that foreground revolution leading screw seat support plate 28 is fixed in foreground base 13 upper table surfaces, foreground revolution leading screw 25 inserts in the leading screw block hole on foreground revolution leading screw seat 26 and becomes to be rotationally connected by means of bearing, revolution leading screw 25 in foreground is fixedly connected with foreground revolution leading screw handwheel 27 from the external part (turning round the rear end of leading screw 25) of foreground revolution leading screw seat 26 leading screw block holes, and another (front) end is equipped with as being threaded with foreground revolution screw 24.Revolution screw 24 in foreground is rotationally connected with foreground revolution screw bearing 59, foreground revolution screw bearing 59 is screwed the bottom of the parallel side of the through-bore axis with on two fork walls that is connected on stub fork support 34, is fixed on the bottom of the right side of stub fork support 34.
2. consult Fig. 6 and Fig. 7, mechanical interface and horizontal location part mainly are comprised of swing arm 17, transverse axis contiguous block 18, transverse axis pull bar 21, front transverse axis 32, central shaft set nut 67 and zero-point positioning piece 91.
The fork of swing arm 17 right-hand members is sleeved on central shaft 92 two ends for being rotationally connected, adopt central shaft set nut 67 in one (afterwards) of central shaft 92 end locking, front transverse axis 32 is processed into multidiameter, the interior one-tenth of through hole that one (right side) end of front transverse axis 32 inserts swing arm 17 left ends is fixedly connected with, and transverse axis contiguous block 18 suits are fixed on front transverse axis 32.Transverse axis pull bar 21 is processed into the bending sheet structure, one (left side) end is screwed on transverse axis contiguous block 18 1 (afterwards) side, and lock-screw 29 is threaded with simulation stub adapter sleeve 30 1 (afterwards) side through the long arc shape through hole on transverse axis pull bar 21 another (right side) ends.The bottom of zero-point positioning piece 91 lies in a horizontal plane on the left mounting plane of foreground base 13, and the top end face of zero-point positioning piece 91 is connected with the bottom surface contact of swing arm 17 left ends, can make front transverse axis 32 in horizontality.
3. consult Fig. 7 and Fig. 8, the caster adjustment member is mainly by reverse caster angular encoder support 36, short rocker arm| bearing 37, reverse caster angular encoder rigid support 38, reverse caster angular encoder 39, short rocker arm| 40, lower screw clutch 41, lower leading screw is adjusted knob 42, lower leading screw seat 43, lower leading screw 44, upper leading screw 45, upper screw clutch 46, upper leading screw seat 47, upper leading screw is adjusted knob 48, upper slide rail 49, stub top shoe 50, stub sliding block 51, long Rocker arm 52, Kingpin inclination angular encoder rigid support 53, Kingpin inclination angular encoder 54, Kingpin inclination angular encoder support 55, long rocker arm support 56, short rocker arm| lock handle 58, glidepath 60, top shoe lock-screw 61, sliding block lock-screw 62, long rocking arm lock handle 63, upper sliding-rail sliding 64 and glidepath slide block 65 form.
Short rocker arm| bearing 37 is forked members, and its lower end is the mounting base of a rectangle, and the sway brace that two upper ends are processed with the through hole of the horizontal conllinear of axis of rotation is set on mounting base, is provided with left support arm and right support arm.The mounting base of short rocker arm| bearing 37 lower ends is screwed on the left mounting plane of foreground base 13, the housing of reverse caster angular encoder 39 and reverse caster angular encoder rigid support 38 one (on) end is screwed and is connected, another of reverse caster angular encoder rigid support 38 (under) end with the right-hand member of reverse caster angular encoder support 36, be fixedly connected with, another (left side) end of reverse caster angular encoder support 36 adopts screw to be fixedly connected with the right-hand member of short rocker arm| bearing 37, the rotation axis of reverse caster angular encoder 39 inserts in two through holes of short rocker arm| bearing 37 upper ends, an aperture slots of top hole wall processing of left support arm through hole, process through hole perpendicular to front side, gap on the direction of aperture slots on the left support arm, gap rear side thread mill drilling, short rocker arm| lock handle 58 front ends are processed with screw thread, through hole on short rocker arm| lock handle 58 insertion left support arms before gap is interior for being rotationally connected, and be threaded with the threaded hole behind gap, turn short rocker arm| lock handle 58 can be locked the rotation axis of reverse caster angular encoder 39.Short rocker arm| 40 one (under) end is sleeved on the rotation axis of reverse caster angular encoder 39 to become to be fixedly connected with by the through hole on it, the left and right sides of short rocker arm| 40 and two medial surfaces of two sway braces of short rocker arm| bearing 37 are that face contacts and is connected, and can relatively rotate.Glidepath 60 is optical axis members that are processed with the shaft shoulder, the right-hand member of glidepath 60 (the end face position of center line is processed with threaded hole) insert short rocker arm| 40 another (on) in the through hole of end and the through hole of lower leading screw seat 43 lower ends, by screw, be fixedly connected with again, cylindrical glidepath 60 another (left side) ends insert in the through hole of glidepath slide block 65, lower leading screw 44 is connected with the through hole of lower screw clutch 41 movingly with lower leading screw seat 43, one (left side) end of lower leading screw 44 is threaded with the threaded hole on glidepath slide block 65, another of lower leading screw 44 (right side) end is adjusted knob 42 with lower leading screw and is fixedly connected with.
Long rocker arm support 56 is forked members, and its lower end is a rectangular mounting base, and the sway brace that two upper ends are processed with the through hole of the horizontal conllinear of axis of rotation is set on rectangular mounting base, is provided with front support arm and rear support arm.Long rocker arm support 56 adopts screw to be fixed on the left mounting plane of foreground base 13 by its mounting base, be arranged on the left mounting plane of short rocker arm| bearing 37 left fronts, the housing of Kingpin inclination angular encoder 54 and Kingpin inclination angular encoder rigid support 53 one (on) end adopts screw to be fixedly connected with, Kingpin inclination angular encoder rigid support 53 another (under) end is fixedly connected with the front end of Kingpin inclination angular encoder support 55, another (afterwards) end of Kingpin inclination angular encoder support 55 adopts screw to be fixedly connected with the front support arm of long rocker arm support 56, the rotation axis of Kingpin inclination angular encoder 54 inserts in two through holes of front support arm and rear support arm upper end in rocker arm support 56, an aperture slots of top hole wall processing of rear support arm through hole, be processed with through hole at the rear support arm and perpendicular to the right side, gap of aperture slots, the left side, gap is processed with threaded hole, the horizontal conllinear of the axis of rotation of through hole and threaded hole, long rocking arm lock handle 63 front ends are processed with screw thread, the through hole that long rocking arm lock handle 63 inserts right side, gap, rear support arm upper end is interior for being rotationally connected, and be threaded with the threaded hole in left side, gap, the long rocking arm lock handle 63 of turn can be locked the rotation axis of Kingpin inclination angular encoder 54.Long Rocker arm 52 one (under) through hole of end is sleeved on the rotation axis of the Kingpin inclination angular encoder 54 between front support arm and rear support arm in long rocker arm support 56 to become to be fixedly connected with, the two sides of long Rocker arm 52 are that the face contact is connected with front support arm in long rocker arm support 56 and two medial surfaces of rear support arm, can relatively rotate.Upper slide rail 49 is optical axis members that are processed with the shaft shoulder, the front end of upper slide rail 49 (the end face position of center line is processed with threaded hole) insert long Rocker arm 52 another (on) through hole held and the through hole of upper leading screw seat 47 lower ends, by screw, be fixedly connected with, cylindrical upper slide rail 49 another (afterwards) end inserts in the through hole of upper sliding-rail sliding 64, upper leading screw 45 is connected with the through hole of upper screw clutch 46 movingly with upper leading screw seat 47, one (afterwards) end of upper leading screw 45 is threaded with the threaded hole on upper sliding-rail sliding 64, another (front) end is adjusted knob 48 with upper leading screw and is fixedly connected with.
To reach orthogonal central shaft 92 axis that intersect at of axis of rotation of axis, foreground rotary disk 35 of axis, Kingpin inclination angular encoder 54 rotation axiss of reverse caster angular encoder 39 rotation axiss after installation with on the intersection point that is connected bearing pin 66 axis, the axis conllinear of the axis of front transverse axis 32 and reverse caster angular encoder 39 rotation axiss, the axis of simulation stub 22 and the axis of rotation conllinear of foreground rotary disk 35.
Check the level angle adjustment member in part 14 to be fixed on the left mounting plane of foreground base 13 upper table surfaces for left front, the kingpin inclination adjustment member of caster adjustment member is fixed on along on the upper table surface of the axis direction foreground base 13 of central shaft 92, when standing in foreground revolution leading screw handwheel 27 places and overlooking calibrating installation, centered by the level angle adjustment member, the kingpin inclination adjustment member is above the level angle adjustment member.The kingpin castor angle adjustment member is fixed on central shaft 92 axis to become on the upper table surface of vertical direction foreground base 13, and the kingpin inclination adjustment member is at the left of level angle adjustment member.The line of centres angle of the line of centres of level angle adjustment member and kingpin inclination adjustment member and level angle adjustment member and kingpin castor angle adjustment member is right angle.Mechanical interface and horizontal adjustment partly are arranged on the right-hand of level angle adjustment member, with the kingpin castor angle adjustment member on a line.
Consult Fig. 9, rear stand check part 3 mainly is comprised of background base 69, right back check part 70 and left back check part 71.
Background base 69 is weld assemblies that form with channel-section steel and Plate Welding, and its upper table surface two ends will process mounting plane and through hole, and the upper table surface of background base 69 processes left mounting plane and right mounting plane.Background base 69 is arranged on test jig 1 rear erecting bed at prenex zero point, on the rear left erecting bed that is arranged on left longeron 8 rear ends and the rear right erecting bed of right vertical beam 7 rear ends, with register pin, locates and screw is fixed.Left back check part 71 and right back check part 70 are installed in the two ends of background base 69 upper table surfaces, exactly, left back check part 71 and right back check part 70 mirror images are arranged on the left mounting plane and right mounting plane of background base 69 upper table surfaces symmetrically, two rear cross shafts 73 in left back check part 71 and right back check part 70 point to left side and right sides, and the axis of two rear cross shafts 73 in left back check part 71 and right back check part 70 is wanted conllinear.
Right back check part 70 in rear stand check section 3:
Consult Figure 10 and Figure 11, form left back check part 71 identical with the design of part of right back check part 70, left back check part 71 and right back the two ends of checking part 70 mirror images to be arranged on symmetrically background base 69, left back check part 71 checks part 70 by rear cross shaft 73 with right back, backstage stand 74, the backstage elevating screw is adjusted knob 75, backstage elevating screw seat 76, backstage elevating screw 77, horizontal seat 78, backstage revolution leading screw is adjusted knob 79, backstage revolution leading screw seat cushion 80, backstage revolution leading screw seat 81, backstage revolution leading screw 82, level angle scrambler 83, bearing seat cushion 84, level angle scrambler rigid support 85, camber angular encoder 86, camber angular encoder rigid support 87, backstage rotary disk pointer 88, backstage rotary disk 89 and backstage lifting support 90 form.
Rotary disk 89 use screws in backstage are fixedly mounted on the left back mounting plane of background base 69 through bearing seat cushion 84, backstage stand 74 adopts bearing (with vertical bearing pin) to be rotationally connected with 89 one-tenth of backstage rotary disks, level angle scrambler 83 is arranged on the bottom surface of background base 69, the shell of level angle scrambler 83 is fixedly connected with level angle scrambler rigid support 85, level angle scrambler rigid support 85 is fixedly mounted on the bottom surface of background base 69, the rotation axis of level angle scrambler 83 inserts background base 69, bearing seat cushion 84 becomes to be fixedly connected with by screw with backstage stand 74 with after backstage rotary disk 89, backstage stand 74 is forked members, its lower end is a platform, make the sway brace of the through hole of the axis of rotation conllinear that two upper ends are processed with level on platform, be provided with left front sway brace and left back sway brace.The shell of camber angular encoder 86 is fixedly connected with the upper end of camber angular encoder rigid support 87, the lower end of camber angular encoder rigid support 87 is fixedly mounted on one (front) end of platform in backstage stand 74, the rotation axis of camber angular encoder 86 adopts the bearing left front support arm of backstage stand 74 of packing into to become to be rotationally connected with in two through holes on left back sway brace, horizontal seat 78 is sleeved on the rotation axis of camber angular encoder 86 to become to be fixedly connected with, its both sides (front and back side) face is that the face contact is connected with two sway brace two medial surfaces of backstage stand 74, can relatively rotate.Rear cross shaft 73 is processed into multidiameter, in the through hole of the horizontal seat of one (right side) end insertion 78 left ends of rear cross shaft 73, becomes to be fixedly connected with.90 one-tenth Z-types of backstage lifting support, one (left side) end of backstage lifting support 90 is fixedly mounted on one (right side) side of backstage stand 74 left back sway braces, backstage elevating screw seat 76 is rotatably connected on the front end face of another (right side) end of backstage lifting support 90, in the through hole of backstage elevating screw 77 insertion backstage elevating screw seats 76 and with the horizontal seat 78 of elevating screw seat 76 belows, backstage, be threaded, the upper end of backstage elevating screw 77 is adjusted knob 75 with the backstage elevating screw and is fixedly connected with.The installation shaft of revolution leading screw seat 81 lower ends, backstage is inserted backstage revolution leading screw seat cushion 80 and is rotatably connected on the left back mounting plane of background base 69 upper table surfaces, adjusting knob 79 with backstage revolution leading screw after the through hole of one (left side) end insertion backstage revolution leading screw seat 81 of backstage revolution leading screw 82 is fixedly connected with, another (right side) end of backstage revolution leading screw 82 is threaded with the front end of backstage stand 74, the axis of angle-position encoder 83 rotation axiss will be up to the standard after installation, the axis of camber angular encoder 86 rotation axiss, the axis of rotation of rear cross shaft 73 is orthogonal and intersect at a point.
Consult Figure 12, described belt transmission comprises left leather belt gearing 20 and right leather belt gearing 19, forms left leather belt gearing 20 identical with the design of part of right leather belt gearing 19.Left leather belt gearing 20 mainly is comprised of driving pulley 93, front driven pulley 100, the front sensor chuck locking knob 102 that 101,2 structures of front sensor chuck are identical, rear sensor chuck locking knob 104, rear driven pulley 105 and belt 106 that 103,2 structures of rear sensor chuck are identical.
Described driving pulley 93 adopts key to be fixedly connected with another (outward) end of caster axle 68 longways.
Described front sensor chuck 101 is sleeve-like configuration parts, two threaded holes of processing on the one side bus, and the place, centre position that front driven pulley 100 is sleeved on front sensor chuck 101 connects for key.The right-hand member of front sensor chuck 101 is sleeved on the left end of left front the front transverse axis 32 in check part 14, rotation right side front sensor chuck locking knob 102 is fixedly connected with the left end of front transverse axis 32 with the right-hand member of front sensor chuck 101, right side front sensor chuck locking knob 102 is threaded with front sensor chuck 101.The installation shaft of front sensor is inserted the left end of front sensor chuck 101, rotation left side front sensor chuck locking knob 102 is fixedly connected with the installation shaft of front sensor with the left end of front sensor chuck 101, left side front sensor chuck locking knob 102 is threaded with front sensor chuck 101.
Described rear sensor chuck 103 is sleeve-like configuration parts, two threaded holes of processing on the one side bus, and rear driven pulley 105 adopts key to be fixedly connected with rear sensor chuck 103, is positioned at the centre position of rear sensor chuck 103.Left back the right-hand member of checking the rear sensor chuck 103 of left end insertion of the rear cross shaft 73 in part 71, behind the rotation right side, sensor chuck locking knob 104 is fixedly connected with the left end of rear cross shaft 73 with the right-hand member of rear sensor chuck 103, and behind right side, sensor chuck locking knob 104 is threaded with rear sensor chuck 103.The installation shaft of rear sensor is inserted the left end of rear sensor chuck 103, behind the rotation left side, sensor chuck locking knob 104 is fixedly connected with the installation shaft of rear sensor with the left end of rear sensor chuck 103, and behind left side, sensor chuck locking knob 104 is threaded with rear sensor chuck 103.
On described belt 106 is arranged in the race of driving pulley 93, front driven pulley 100, rear driven pulley 105.
While requiring thrust unit to move forward and backward after installation, ground castor 4 passes through caster axle 68 drive driving pulleys 93 longways and synchronously rotates, driving pulley 93 drives front driven pulleys 100 by belt 106 and rear driven pulley 105 synchronously rotates, thereby drive respectively front sensor and rear sensor by front sensor chuck 101 and rear sensor chuck 103, synchronizes and rotates.
Method of operating based on belt driven type calibrating apparatus for four-wheel positioning instrument calibrating 3D four-wheel position finder:
1. toe-in test jig at zero point 1 is combined to installation on request; The supporting leg base 99 of regulating respectively in front right combined support leg 9, front left combined support leg 10, rear right combined support leg 11 and rear left combined support leg 12 makes it unsettled, and four ground castors 4 are landed;
2. by Installation and Debugging, good front platform check part 2 is arranged on respectively on the front erecting bed and rear erecting bed on toe-in test jig at zero point 1 with rear stand check part 3, and with the register pin location, screw is fixed;
3. the left leather belt gearing 20 that assembles and right leather belt gearing 19 are arranged on respectively to test jig at prenex zero point 1 left side and right side;
4. what will assemble is placed on the lifting frame of 3D four-wheel position finder based on the belt driven type calibrating apparatus for four-wheel positioning instrument, installs and adjusts two of fronts sensor and two of back sensor;
5. according to the step of 3D four-wheel position finder calibrating automobile four-wheel angle, complete the measurement of four-wheel parameters;
6. the parameters value 3D four-wheel position finder recorded is contrasted with the parameters value recorded based on the belt driven type calibrating apparatus for four-wheel positioning instrument, can complete the quality arbitration to the 3D four-wheel position finder.

Claims (10)

1. one kind based on the belt driven type calibrating apparatus for four-wheel positioning instrument, include prenex test jig at zero point (1), front platform check part (2), rear stand check part (3) and belt transmission, it is characterized in that, described belt transmission includes right leather belt gearing (19) and left leather belt gearing (20), and left leather belt gearing (20) includes driving pulley (93), front driven pulley (100), front sensor chuck (101), rear sensor chuck (103), rear driven pulley (105) and belt (106);
It is that key connects that described driving pulley (93) is sleeved in the front left combined support leg (10) in prenex test jig at zero point (1) outer end of caster axle (68) longways, the right-hand member of front sensor chuck (101) is sleeved on the left end of the front transverse axis (32) in left front check part (14) and adopts front sensor chuck locking knob (102) locking, the middle place that front driven pulley (100) is sleeved on front sensor chuck (101) is that key connects, the right-hand member of rear sensor chuck (103) is sleeved on the left end of the rear cross shaft (73) in left back check part (71) and adopts rear sensor chuck locking knob (104) locking, the middle place that rear driven pulley (105) is sleeved on rear sensor chuck (103) is that key connects, belt (106) is arranged on driving pulley (93), in the race of front driven pulley (100) and rear driven pulley (105).
According to claimed in claim 1 based on the belt driven type calibrating apparatus for four-wheel positioning instrument, it is characterized in that, described right leather belt gearing (19) is identical with the structure of left leather belt gearing (20), and right leather belt gearing (19) also includes driving pulley (93), front driven pulley (100), front sensor chuck (101), rear sensor chuck (103), rear driven pulley (105) and belt (106);
It is that key connects that described driving pulley (93) is sleeved in the front right combined support leg (9) in prenex test jig at zero point (1) outer end of caster axle (68) longways, the left end of front sensor chuck (101) is sleeved on the right-hand member of the front transverse axis (32) in right front check part (15) and adopts front sensor chuck locking knob (102) locking, the middle place that front driven pulley (100) is sleeved on front sensor chuck (101) is that key connects, the left end of rear sensor chuck (103) is sleeved on the right-hand member of the rear cross shaft (73) in right back check part (71) and adopts rear sensor chuck locking knob (104) locking, the middle place that rear driven pulley (105) is sleeved on rear sensor chuck (103) is that key connects, belt (106) is arranged on driving pulley (93), in the race of front driven pulley (100) and rear driven pulley (105).
According to claimed in claim 1 based on the belt driven type calibrating apparatus for four-wheel positioning instrument, it is characterized in that, described prenex test jig at zero point (1) comprises front beam (5), rear cross beam (6), right vertical beam (7), left longeron (8), front right combined support leg (9), front left combined support leg (10), rear right combined support leg (11) and rear left combined support leg (12);
The two ends of front beam (5) are equipped with and adopt nut to be fixedly connected with right vertical beam (7) with the through hole of left longeron (8) front end, the two ends of rear cross beam (6) are equipped with and adopt nut to be fixedly connected with the rectangular frame that becomes a plane with right vertical beam (7) with the through hole of left longeron (8) rear end, and the bottom surface at the top end face of the front right combined support leg (9) vertically arranged, front left combined support leg (10), rear right combined support leg (11) and rear left combined support leg (12) and four angles of rectangular frame contacts and adopts screw to fix;
The right vertical beam (7) that described front platform check part (2) is arranged in prenex test jig at zero point (1) is that bolt is fixedly connected with the front end of left longeron (8), and the right vertical beam (7) that rear stand check part (3) is arranged in prenex test jig at zero point (1) is that bolt is fixedly connected with the rear end of left longeron (8).
According to claimed in claim 3 based on the belt driven type calibrating apparatus for four-wheel positioning instrument, it is characterized in that, described front right combined support leg (9) and front left combined support leg (10) all include ground castor (4), longways caster axle (68), driving pulley (93), trundle bracket (94), castor connecting board (95), supporting leg pipe (96), supporting leg web joint (97), supporting leg adjusting screw(rod) (98) and supporting leg base (99);
The upper end of described supporting leg pipe (96) is welded with supporting leg web joint (97), the lower end of supporting leg pipe (96) is welded with ground castor connecting board (95), ground castor connecting board (95) is threaded with supporting leg adjusting screw(rod) (98) upper end, the lower end supporting leg base (99) of supporting leg adjusting screw(rod) (98) is welded to connect, and the axis of supporting leg adjusting screw(rod) (98) is vertical with the bottom surface of supporting leg base (99), the top installing plate of ground trundle bracket (94) is with bolts with ground castor connecting board (95), vertically fixedly mount the hold-down arm that two lower ends that are parallel to each other are processed with horizontal through hole on the installing plate bottom surface, top of ground trundle bracket (94), caster axle (68) adopts bearing to be arranged in the horizontal through hole on ground trundle bracket (94) as being rotationally connected longways, it is the key connection that ground castor (4) is sleeved in ground trundle bracket (94) caster axle longways (68) between two vertical hold-down arms upper, the caster axle longways (68) that driving pulley (93) is sleeved on the vertical hold-down arm outside in ground trundle bracket (94) is above that key connects.
According to claimed in claim 4 based on the belt driven type calibrating apparatus for four-wheel positioning instrument, it is characterized in that, the slab construction part that described supporting leg web joint (97) is rectangle, be evenly arranged the slotted eye of mounting screw on supporting leg web joint (97), supporting leg web joint (97) is vertical with the axis of rotation of supporting leg pipe (96);
The slab construction part that described ground castor connecting board (95) is rectangle, ground castor connecting board (95) left-half is evenly arranged 4 through holes, ground castor connecting board (95) right half part is along a threaded hole of centerline direction processing of supporting leg pipe (96), and ground castor connecting board (95) is vertical with the axis of rotation of supporting leg pipe (96).
According to claimed in claim 3 based on the belt driven type calibrating apparatus for four-wheel positioning instrument, it is characterized in that, described rear right combined support leg (11) and rear left combined support leg (12) are except short ground caster axle (72) and caster axle (68) structure longways are not identical, other parts and front right combined support leg (9) of rear right combined support leg (11) and rear left combined support leg (12) is identical with the component structural in front left combined support leg (10), be all castors (4) of rear right combined support leg (11) and rear left combined support leg (12), short ground caster axle (72), ground trundle bracket (94), ground castor connecting board (95), supporting leg pipe (96), supporting leg web joint (97), supporting leg adjusting screw(rod) (98) and supporting leg base (99),
Described supporting leg pipe (96) is the bar class formation part of being made by pipe, its upper end is welded with the supporting leg web joint (97) of the rectangle vertical with supporting leg pipe (96) axis of rotation, the ground castor connecting board (95) of the rectangle that the lower end welding of supporting leg pipe (96) is vertical with supporting leg pipe (96) axis of rotation, ground castor connecting board (95) is threaded with supporting leg adjusting screw(rod) (98) top, the lower end of supporting leg adjusting screw(rod) (98) is welded with supporting leg base (99), the axis of rotation of supporting leg adjusting screw(rod) (98) is vertical with the bottom surface of supporting leg base (99), ground trundle bracket (94) is a forked members, top is the top installing plate that is evenly arranged 4 through holes, the top installing plate is with bolts with ground castor connecting board (95), vertically fixedly mount the hold-down arm that two lower ends that are parallel to each other are processed with horizontal through hole on installing plate bottom surface, top, short ground caster axle (72) adopts bearing to be arranged in ground trundle bracket (94) in the horizontal through hole on two vertical hold-down arms as being rotationally connected, it is the key connection that ground castor (4) is sleeved in ground trundle bracket (94) short ground caster axle (72) between two vertical hold-down arms upper.
According to claimed in claim 1 based on the belt driven type calibrating apparatus for four-wheel positioning instrument, it is characterized in that, described front platform check part (2) is comprised of foreground base (13), left front check part (14), right front check part (15) and connecting link (16);
Form described left front check part (14) identical with the component structural of right front check part (15);
Foreground base (13) is a tower structure part formed with shaped steel and Plate Welding, the bottom surface at foreground base (13) two ends contacts and adopts register pin to be fixedly connected with bolt with the left front erecting bed of left longeron (8) with the right front erecting bed of right vertical beam (7), the two ends of foreground base (13) upper table surface process left mounting plane and right mounting plane, be provided with through hole and T-slot on left mounting plane and right mounting plane, left front check part (14) and right front check part (15) are arranged on successively on left mounting plane on foreground base (13) and right mounting plane and adopt screw to fix, the axis of rotation conllinear of left front check part (14) and right front the check front transverse axis (32) that partly two structures in (15) are identical, front transverse axis (32) the sensing left and right sides that left front check part (14) is identical with two structures in right front check part (15), left front check part (14) is connected by connecting link (16) with right front check part (15).
According to claimed in claim 7 based on the belt driven type calibrating apparatus for four-wheel positioning instrument, it is characterized in that, described left front check part (14) all is comprised of level angle adjustment member, mechanical interface and horizontal location part and caster adjustment member with right front check part (15);
Level angle adjustment member in left front check part (14) includes simulation stub (22), vertical survey dish (23), foreground revolution screw (24), foreground revolution leading screw (25), foreground revolution leading screw seat (26), foreground revolution leading screw handwheel (27), foreground revolution leading screw seat support plate (28), simulation stub adapter sleeve (30), stub fork (31), connecting link bearing (33), stub fork support (34), foreground rotary disk (35), foreground revolution screw bearing (59), connect bearing pin (66) and central shaft (92),
Foreground rotary disk (35) is screwed on the left mounting plane that is arranged on foreground base (13), stub is pitched between support (34) and foreground rotary disk (35) as being rotationally connected, central shaft (92) inserts stub and pitches in the through holes on two fork walls of support (34) as being rotationally connected, stub fork (31) adopts connection bearing pin (66) and central shaft (92) to be rotationally connected, and the top of stub fork (31) is inserted for being fixedly connected with in the lower end of simulation stub (22); Vertical survey dish (23) is fixedly mounted on the upper end of simulation stub (22), it is upper for being fixedly connected with that simulation stub adapter sleeve (30) is sleeved on simulation stub (22), and the leading flank of stub fork support (34) is fixedly connected with the connecting link bearing (33) be rotationally connected with connecting link (16);
The bottom of foreground revolution leading screw seat (26) and foreground revolution leading screw seat support plate (28) are rotationally connected, foreground revolution leading screw seat support plate (28) is fixed on the left processing plane of foreground base (13), foreground revolution leading screw (25) inserts in the leading screw block hole on foreground revolution leading screw seat (26) as being rotationally connected, the rear end of foreground revolution leading screw (25) is fixedly connected with foreground revolution leading screw handwheel (27), front end is equipped with as being threaded with foreground revolution screw (24), foreground revolution screw (24) turns round screw bearing (59) for being rotationally connected with foreground, foreground revolution screw bearing (59) is fixedly connected on the bottom of the right side of stub fork support (34),
Mechanical interface and horizontal location in left front check part (14) partly include swing arm (17), transverse axis contiguous block (18), transverse axis pull bar (21), front transverse axis (32) and zero-point positioning piece (91);
The fork of swing arm (17) right-hand member is sleeved on central shaft (92) two ends for being flexibly connected, the through hole of right-hand member insertion swing arm (17) left end of front transverse axis (32) is interior for being fixedly connected with, transverse axis contiguous block (18) is set with and is fixed on front transverse axis (32), the right-hand member of the left end insertion front sensor chuck (19) of front transverse axis (32) is interior for being fixedly connected with, the left end of transverse axis pull bar (21) adopts screw to be fixed on the trailing flank of transverse axis contiguous block (18), the right-hand member of transverse axis pull bar (21) is threaded with the trailing flank of simulation stub adapter sleeve (30), zero-point positioning piece (91) is placed on the left mounting plane of foreground base (13), the top end face of zero-point positioning piece (91) is connected with the bottom surface contact of swing arm (17) left end,
Caster adjustment member in left front check part (14) includes reverse caster angular encoder support (36), short rocker arm| bearing (37), reverse caster angular encoder rigid support (38), reverse caster angular encoder (39), short rocker arm| (40), lower screw clutch (41), lower leading screw seat (43), lower leading screw (44), upper leading screw (45), upper screw clutch (46), upper leading screw seat (47), upper slide rail (49), stub top shoe (50), stub sliding block (51), long rocking arm (52), Kingpin inclination angular encoder rigid support (53), Kingpin inclination angular encoder (54), Kingpin inclination angular encoder support (55), long rocker arm support (56), short rocker arm| lock handle (58), glidepath (60), top shoe lock-screw (61), sliding block lock-screw (62), long rocking arm lock handle (63), upper sliding-rail sliding (64) and glidepath slide block (65),
The left side that short rocker arm| bearing (37) is fixed on foreground base (13) adds on installed surface, reverse caster angular encoder (39) is connected with screw with the upper end of reverse caster angular encoder rigid support (38), the lower end of reverse caster angular encoder rigid support (38) is fixedly connected with the right-hand member of reverse caster angular encoder support (36), the left end of reverse caster angular encoder support (36) is connected with the right-hand member screw of short rocker arm| bearing (37), the rotation axis of reverse caster angular encoder (39) inserts in two through holes of short rocker arm| bearing (37) upper end, short rocker arm| lock handle (58) inserts in the through hole before the gap on the left support arm as being rotationally connected, short rocker arm| lock handle (58) inserts threaded hole behind the gap on the left support arm for being threaded simultaneously, short rocker arm| (40) lower end is sleeved on the rotation axis of reverse caster angular encoder (39) as being fixedly connected with, the through hole that the right-hand member of glidepath (60) inserts short rocker arm| (40) upper end is fixedly connected with the through hole inner bolt of lower leading screw seat (43) lower end, the left end of cylindrical glidepath (60) inserts in the through hole of glidepath slide block (65), lower leading screw (44) is connected with the through hole of lower screw clutch (41) movingly with lower leading screw seat (43), the left end of lower leading screw (44) is threaded with the threaded hole on glidepath slide block (65), the right-hand member of lower leading screw (44) is adjusted knob (42) with lower leading screw and is fixedly connected with.
9. according to claimed in claim 1, based on the belt driven type calibrating apparatus for four-wheel positioning instrument, it is characterized in that, described rear stand check part (3) comprises background base (69), right back check part (70) and left back check part (71);
Form described right back check part (70) identical with the component structural of left back check part (71);
Background base (69) is a weld assembly formed with channel-section steel and Plate Welding, the rear right erecting bed of the bottom surface at background base (69) two ends and right vertical beam (7) rear end in prenex test jig at zero point (1) contacts and adopts register pin to be fixedly connected with screw with the rear left erecting bed of left longeron (8) rear end, the two ends of background base (69) upper table surface process right mounting plane and left mounting plane, right back check part (70) is arranged on the right mounting plane and left mounting plane of background base (69) upper table surface successively with left back check part (71), right back check part (70) pointed to right side and left side with two rear cross shafts (73) in left back check part (71), right back check part (70) checks the axis of rotation of two rear cross shafts (73) in part (71) to want conllinear with left back.
According to claimed in claim 9 based on the belt driven type calibrating apparatus for four-wheel positioning instrument, it is characterized in that, described left back check part (71) all comprises rear cross shaft (73) with right back check part (70), backstage stand (74), backstage elevating screw seat (76), backstage elevating screw (77), horizontal seat (78), backstage revolution leading screw seat cushion (80), backstage revolution leading screw seat (81), backstage revolution leading screw (82), level angle scrambler (83), bearing seat cushion (84), level angle scrambler rigid support (85), camber angular encoder (86), camber angular encoder rigid support (87), backstage rotary disk (89) and backstage lifting support (90),
Backstage rotary disk (89) adopts screw to be fixedly mounted on the left mounting plane of background base (69) together with bearing seat cushion (84), backstage stand (74) adopts bearing to become to be rotationally connected with backstage rotary disk (89), level angle scrambler (83) adopts level angle scrambler rigid support (85) to be arranged on the bottom surface of background base (69), the rotation axis of level angle scrambler (83) inserts background base (69), bearing seat cushion (84) adopts screw to be fixedly connected with backstage rotary disk (89) is rear with backstage stand (74), the shell of camber angular encoder (86) is fixedly connected with camber angular encoder rigid support (87), the lower end of camber angular encoder rigid support (87) is fixedly mounted on the front end of backstage stand (74), the rotation axis insertion left front support arm of backstage stand (74) of camber angular encoder (86) and two through holes of left back sway brace upper end are interior for being rotationally connected, horizontal seat (78) is sleeved on the rotation axis of camber angular encoder (86) as being fixedly connected with, rear cross shaft (73) is processed into multidiameter, the interior one-tenth of through hole that the left end of rear cross shaft (73) inserts horizontal seat (78) right-hand member is fixedly connected with, the left end of backstage lifting support (90) is fixedly mounted on the right side of the left rear support arm of backstage stand (74), backstage elevating screw seat (76) is rotatably connected on the front end face of backstage lifting support (90) left end, in the through hole of backstage elevating screw (77) insertion backstage elevating screw seat (76) and with horizontal seat (78), be threaded, the installation shaft of revolution leading screw seat (81) lower end, backstage is inserted backstage revolution leading screw seat cushion (80) and is rotatably connected on the right mounting plane of background base (69), the left end of backstage revolution leading screw (82) is fixedly connected with backstage revolution leading screw adjustment knob (79) after inserting the through hole that turns round leading screw seat (81) in backstage, the right-hand member of backstage revolution leading screw (82) is threaded with the front end of backstage stand (74),
Level angle scrambler (83), camber angular encoder (86) intersect at a point with the axis of rotation of rear cross shaft (73) orthogonally.
CN201310392869.0A 2013-09-02 2013-09-02 Based on belt driven type calibrating apparatus for four-wheel positioning instrument Expired - Fee Related CN103439120B (en)

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