CN208672330U

CN208672330U - The axial displacement experimental rig of automobile turning pipe pillar assembly

Info

Publication number: CN208672330U
Application number: CN201821287339.4U
Authority: CN
Inventors: 黄滢芝
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-09
Filing date: 2018-08-09
Publication date: 2019-03-29
Anticipated expiration: 2028-08-09

Abstract

The utility model relates to car steering tube column fields, in particular to the axial displacement experimental rig of a kind of automobile turning pipe pillar assembly, including testing stand, experimental rig includes head end transmission mechanism, end guiding mechanism, avoiding mechanism and testing agency, head end transmission mechanism is fixed on one end at the top of testing stand, end guiding mechanism is set to the other end of testing stand, and it can back and forth be advanced by avoiding mechanism towards the direction of head end transmission mechanism, testing agency is set to the top of testing stand, and it is also located between head end transmission mechanism and end guiding mechanism, the two sides of testing agency are respectively equipped with a support limit assembly, testing agency includes detection lug, thin cylinder and to positive component, detection lug can be vertical movable above testing stand by thin cylinder, the utility model can be effectively to the universal joint in column assy The axial of central axis carry out displacement detecting, underproof column assy is excluded with this, and then improve the travel safety of subsequent vehicle.

Description

The axial displacement experimental rig of automobile turning pipe pillar assembly

Technical field

The utility model relates to car steering tube column field, in particular to a kind of axial displacement of automobile turning pipe pillar assembly Experimental rig.

Background technique

The basic composition of automobile steering system includes: steering control mechanism, diverter, steering gear etc..Wherein, institute Steering control mechanism is stated mainly to be made of steering wheel, steering shaft and the connection steering wheel and the steering column of steering shaft etc., Steering column can be divided into steering column and lower steering column, between upper steering column and lower steering column on the market What connection type used is column assy that universal joint assembles, and after being completed, needs to carry out steering tube The universal-joint cross trunnion axial gap test operation of column assembly, purpose ensure the axial displacement numerical value < 0.01mm of central shaft, It could maximumlly guarantee maximum stability of the column assy in later period use in this way, pacify so as to improve the driving of vehicle Quan Xing.

Utility model content

The purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of axial direction of automobile turning pipe pillar assembly Racking test device.

To solve the above problems, the utility model the following technical schemes are provided:

A kind of axial displacement experimental rig of automobile turning pipe pillar assembly is the test of rectangular configuration including work top Platform, experimental rig include head end transmission mechanism, end guiding mechanism, avoiding mechanism and testing agency, and head end transmission mechanism is solid The one end of Dingan County at the top of testing stand, end guiding mechanism movable can be arranged in outside the other end of testing stand, and its It can back and forth be advanced towards the direction of head end transmission mechanism by avoiding mechanism, testing agency is mounted on the top of testing stand, and And be also located between head end transmission mechanism and end guiding mechanism, the two sides of testing agency are respectively arranged with one and turn to put To the support limit assembly of tubing string assembly, testing agency includes detection lug, thin cylinder and to positive component, and detection lug is in level And by thin cylinder can it is vertical it is movable be arranged above testing stand, thin cylinder is by can be along test to positive component The long side or short side direction of platform are movable to be arranged on testing stand.

Further, the head end transmission mechanism includes guide plate, U-shaped seat, two-way lead screw and driving motor, guide plate In being vertically installed on testing stand, U-shaped seat is hinged on front side of the guide plate towards detection lug, the opening of U-shaped seat by transmission shaft Facing towards detection lug, two-way lead screw shaft is connect in the opening of U-shaped seat, driving motor be mounted on the outside of U-shaped seat and with it is two-way Lead screw transmission connection, the opening external symmetry of U-shaped seat are set there are two grip block, and grip block is V-structure, the opening of two grip blocks Face is oppositely arranged, and the two passes through a nut slider respectively and two-way lead screw transmission cooperates.

Further, the head end transmission mechanism further includes the identical extrusion of two structures, and two extrusions distinguish position In two end faces up and down of U-shaped seat, clamping piece includes fixed block, squeezes plywood and evacuation bar, and one end of fixed block is fixed with U-shaped seat Connection, the other end of fixed block extends to the middle of two grip blocks, and avoid bar in it is vertical through fixed block this one End, squeezing plywood is in the inside for being positioned horizontally in fixed block, and it is also fixedly connected with evacuation bar, and two crowded plywood pass through one respectively A crowded conjunction spring is connect with the inner elastic of respective fixed block.

Further, the avoiding mechanism includes that gas bar, evacuation plate and the short side perpendicular bisector along testing stand are symmetrical arranged Two sliding rails, evacuation plate cooperates with two sliding rail horizontal anomalous movements, and end guiding mechanism, which is mounted on, to be avoided on plate, end Guiding machine Structure is identical as the structure of head end transmission mechanism, and gas bar is mounted on the outside of a sliding rail and to drive evacuation plate close or remote Separating test platform.

Further, the back side of the guide plate in the head end transmission mechanism is provided with experiment electric motor, experiment electric motor to The transmission shaft of the corresponding guide plate position is driven to be offered around own axis, and on testing stand for corresponding with the transmission shaft The notch that can rotate of U-shaped seat.

Further, the detection lug is circular configuration, and is also made of transparent material, is run through at the center of detection lug Equipped with alignment hole, the upper surface of detection lug is equipped at least four graduated scales being angularly distributed along the circumferential direction of alignment hole, graduated scale One end close to the edge of alignment hole, and the edge of other end proximity test piece.

Further, described includes longitudinal electric cylinders and lateral electric cylinders to positive component, and lateral electric cylinders are fixed on testing stand, are indulged It is connect to the back side of electric cylinders with the output end of lateral electric cylinders, and the outbound course composition of the two is cross, thin cylinder is in perpendicular It is directly mounted on the output end of longitudinal electric cylinders, the output end of thin cylinder is equipped with the linkage board of one end connection fixed thereto, linkage The other end of plate extends between head end transmission mechanism and end guiding mechanism, and detection lug be fixed on linkage board this one End.

Further, the structure of two support limit assemblies is identical, and two support limit assemblies are respectively close to head end Transmission mechanism and end guiding mechanism, support limit assembly include cradle and push guide part, and cradle is in vertically-mounted It is provided with the pendulum slot of V-structure on testing stand, at the top of cradle, pushes the side that guide part is mounted on cradle.

Further, described to push the block that guide part includes screw rod slide unit, lower compression roller and U-shaped structure, screw rod slide unit is in It is vertically arranged, block is located at the surface of cradle, the output end transmission connection of block and screw rod slide unit, and the opening of block faces To the table top of testing stand, two hinged blocks are symmetrically arranged in the opening of block, two hinged blocks pass through a lower pressing spring respectively It movable vertically can cooperate with block, push roll shaft and connect between two hinged blocks.

The utility model has the advantages that a kind of axial displacement experimental rig of automobile turning pipe pillar assembly of the utility model, two supports Seat is respectively used to accommodate a upper tube of column assy to column and down tube to the outer surface of column；And the pipe of the two support to The part of column is its middle section region, after manually placing two Guan Xiangzhu of column assy, first manually by steering tube One end of column assembly is squeezed between two in head end transmission mechanism crowded plywood, and the arc transition of two crowded plywood is convenient for steering tube Column assembly one end smoothly squeezes into therebetween, and squeezes into, and squeezes plywood and compresses respective crowded conjunction spring, is passing through evacuation bar It is axially moved and column assy one end is allowed to enter, two crowded plywood are reached by squeezing the tensile force of conjunction spring to steering column Then the tensioning limiting up and down of assembly one end holds the driving motor work in transmission mechanism, so that two-way lead screw is around own axes Rotation, two grip blocks can start to move toward one another at this time, and the appearance of column assy one end is clamped by respective opening Face is realized and clamps purpose；Then driving makes detection lug march to the gimbal position on steering column positive component, and will Its end for corresponding to the cross axle on the universal joint in advance manually smears the end center of cross axle colored Identify salient point, the alignment hole on such detection lug, which then passes through the identification salient point, to carry out reaching detection lug and cross axle to just with this The end with reaching coaxial mesh, then again by the descending stroke of thin cylinder, so that detection lug declines and close to identification Salient point more intuitively checks whether the two is coaxial with this；At this time due to one end of column assy and with head end driver Structure secure fit, then the other end is in naturally immediately ahead of end guiding mechanism, the evacuation strip of gas bar driving at this time end lead To mechanism close to column assy, then two crowded plywood in the guiding mechanism of end start to column assy this one End, which is realized, squeezes limit, is then realizing folder by the one end of two grip blocks in the guiding mechanism of end to column assy Hold limit, at this time the work of all screw rod slide units so that respective block is vertically lowered, purpose be open in lower compression roller towards turning It is movable to tubing string, so that the appearance face contact of the outer surface of lower compression roller and steering column, and the two generates close contact, and this is tight In contiguity touching, by the contraction of lower pressing spring, forces lower nip roll to be in tensioning state and steering column appearance face contact, then test The U-shaped seat of its position of motor driven rotates, and makes its 360 degree of rotation in notch, at this time the upper tube Xiang Zhufa of column assy Raw rotation, then by universal joint make it is lower rotated to tubing string, lower tubular column is that guiding mechanism clamping in end limits, then down tube Column end is to pass through torque to rotate with the U-shaped seat of its position, is constituted test with this and acted, in steering column rotation, frictional force It forces lower compression roller around own axis, in this case just constitutes to the limit above steering column, so that steering column is whole Motion stabilization；It after testing a period of time, then stops operating, angle when stopping is then that the cross axle in universal joint is equipped with identification One end of salient point is located at the underface of detection lug, then the end continuation of cross axle is corresponding with detection lug, then thin cylinder Decline, so that detection lug, close to identification salient point, detection lug can will be apparent that finding out that alignment hole and identification are convex due to being transparent material Whether point is in coaxial state, if it is not, then carrying out checking whether the spacing of the two difference reaches restriction by graduated scale Numerical value, the utility model effectively the axial of the central axis to the universal joint in column assy can carry out displacement detecting, Underproof column assy is excluded with this, and then improves the travel safety of subsequent vehicle.

Detailed description of the invention

Fig. 1 is the schematic perspective view one of the utility model；

Fig. 2 is the enlarged drawing in Fig. 1 at A；

Fig. 3 is the enlarged drawing in Fig. 1 at B；

Fig. 4 is the main view of the utility model；

Fig. 5 is the schematic perspective view two of the utility model；

Fig. 6 is the schematic perspective view three of the utility model；

Fig. 7 is the enlarged drawing in Fig. 6 at C；

Fig. 8 is the sectional perspective structural schematic diagram one of the utility model；

Fig. 9 is the sectional perspective structural schematic diagram two of the utility model；

Description of symbols: testing stand 1, notch 1a.

Head end transmission mechanism 2, guide plate 2a, U-shaped seat 2b, two-way lead screw 2c, driving motor 2d, grip block 2e, test electricity Machine 2k.

Extrusion 3, fixed block 3a squeeze plywood 3b, arc transition 3c, avoid bar 3d, squeeze and close spring 3e.

End guiding mechanism 4.

Testing agency 5, detection lug 5a, alignment hole 5b, graduated scale 5c, thin cylinder 5w, linkage board 5p, to positive component 5t.

Support limit assembly 6, cradle 6a put slot 6b, screw rod slide unit 6c, lower compression roller 6d, block 6q, hinged block 6k, under Pressing spring 6t.

Avoiding mechanism 7, gas bar 7a avoid plate 7b, sliding rail 7c.

Column assy 8, universal joint 8a

Specific embodiment

With reference to the accompanying drawings of the specification and embodiment, specific embodiment of the utility model is described in further detail:

Referring to figs. 1 to a kind of axial displacement experimental rig of automobile turning pipe pillar assembly shown in Fig. 9, including work top For the testing stand 1 of rectangular configuration, experimental rig includes head end transmission mechanism 2, end guiding mechanism 4, avoiding mechanism 7 and detection Mechanism 5, head end transmission mechanism 2 are fixedly mounted on the one end at 1 top of testing stand, and end guiding mechanism 4, which movable can be arranged, to exist Outside the other end of testing stand 1, and it can back and forth be advanced by avoiding mechanism 7 towards the direction of head end transmission mechanism 2, be detected Mechanism 5 is mounted on the top of testing stand 1, and is also located between head end transmission mechanism 2 and end guiding mechanism 4, testing agency 5 Two sides be respectively arranged with a support limit assembly 6 to put column assy, testing agency 5 includes detection lug 5a, thin cylinder 5w and to positive component 5t, detection lug 5a is in horizontal and vertical movable can be set by thin cylinder 5w It sets above testing stand 1, thin cylinder 5w along the long side or short side direction of testing stand 1 by that movable can set positive component 5t It sets on testing stand 1.

The head end transmission mechanism 2 includes guide plate 2a, U-shaped seat 2b, two-way lead screw 2c and driving motor 2d, guide plate For 2a in being vertically installed on testing stand 1, U-shaped seat 2b is hinged on guide plate 2a towards the front side of detection lug 5a by transmission shaft, U-shaped The opening of seat 2b is facing towards detection lug 5a, and two-way lead screw 2c axis connects in the opening of U-shaped seat 2b, and driving motor 2d is mounted on U-shaped It the outside of seat 2b and is sequentially connected with two-way lead screw 2c, the opening external symmetry of U-shaped seat 2b is set there are two grip block 2e, grip block 2e is V-structure, and the opening face of two grip block 2e is oppositely arranged, and the two passes through a nut slider and two-way silk respectively Thick stick 2c transmission cooperation；One end of column assy is manually placed in the opening of the U-shaped seat 2b in head end transmission mechanism 2 first Interior, then driving motor 2d works, so that two-way lead screw 2c is indicated: two sections of difference of two-way lead screw 2c around own axis Equipped with positive and negative rotation screw thread；So two grip block 2e can start to move toward one another under its rotation, and pressed from both sides by respective opening The outer surface of tight column assy one end, realizes and clamps purpose.

The head end transmission mechanism 2 further includes the identical extrusion 3 of two structures, and two extrusions 3 are located at U-shaped seat Two end faces up and down of 2b, clamping piece include fixed block 3a, squeeze plywood 3b and evacuation bar 3d, one end of fixed block 3a and U-shaped seat 2b is fixedly connected, and the other end of fixed block 3a extends to the middle of two grip block 2e, and avoiding bar 3d is in run through vertically The one end of fixed block 3a, squeezing plywood 3b is in the inside for being positioned horizontally in fixed block 3a, and it is also fixedly connected with evacuation bar 3d, Two crowded plywood 3b pass through the crowded spring 3e that closes respectively and connect with the inner elastic of respective fixed block 3a；It will manually turn to first One end of tubing string assembly is placed in the opening of the U-shaped seat 2b in head end transmission mechanism 2, puts, first that steering column is total At one end squeeze between two crowded plywood 3b, squeeze plywood 3b towards column assy one end be equipped with arc transition 3c, two The arc transition 3c of a crowded plywood 3b is smoothly squeezed into therebetween convenient for column assy one end, and is squeezed into, crowded plywood 3b compresses respective crowded conjunction spring 3e, allows column assy one end to enter in the axial movement by avoiding bar 3d, and two It squeezes plywood 3b and reaches the tensioning limiting up and down to column assy one end, two grip blocks by squeezing the tensile force of conjunction spring 3e 2e is that stable holding is realized to column assy one end, and four cooperate, to all appearances of column assy one end Face, which reaches, to be come into full contact with, and the stabilization in test is increased.

The avoiding mechanism 7 includes gas bar 7a, evacuation plate 7b and the short side perpendicular bisector symmetrically arranged two along testing stand 1 A sliding rail 7c, avoids plate 7b and two sliding rail 7c horizontal anomalous movements cooperate, and end guiding mechanism 4 is mounted on evacuation plate 7b, end Guiding mechanism 4 is identical as the structure of head end transmission mechanism 2, and gas bar 7a is mounted on the outside of a sliding rail 7c and keeps away to drive Allow plate 7b close to or far from testing stand 1；After manually one end of column assy is placed in head end transmission mechanism 2 first, And it after carrying out stable clamping limit to it by head end transmission mechanism 2, is manually put by the other end of column assy 4 front of guiding mechanism in end, then gas bar 7a driving evacuation plate 7b is total close to steering column with end guiding mechanism 4 At then the crowded plywood 3b of two in end guiding mechanism 4, which starts to realize the one end of column assy, squeezes limit, so Clamping limit is being realized by the one end of two grip block 2e in end guiding mechanism 4 to column assy afterwards；Avoid plate 7b passes through the active force of gas bar 7a, may make and flexibly puts column assy, while also having adapted to the different steering of length Tubing string assembly.

The back side of guide plate 2a in the head end transmission mechanism 2 is provided with experiment electric motor 2k, and experiment electric motor 2k is to drive The transmission shaft of the dynamic corresponding position guide plate 2a is offered around own axis, and on testing stand 1 to be supplied and the transmission shaft pair The notch 1a that the U-shaped seat 2b answered can be rotated；Manually one end of column assy is placed in head end transmission mechanism 2 first Afterwards, and by head end transmission mechanism 2 to it after carrying out stable clamping limit, is manually put by the other end of column assy It is placed in end guiding mechanism 4, and carries out stable clamping limit to it by end guiding mechanism 4, then experiment electric motor 2k Drive the U-shaped seat 2b of its position to rotate, make its in notch 1a 360 degree rotation, at this time column assy on to tubing string send out Raw rotation, then by universal joint 8a down tube is rotated to column, lower tubular column is the clamping limit of end guiding mechanism 4, then Down tube column end is to pass through torque to rotate with the U-shaped seat 2b of its position, is constituted test movement with this.

The detection lug 5a is circular configuration, and is also made of transparent material, runs through at the center of detection lug 5a and is equipped with The upper surface of alignment hole 5b, detection lug 5a are equipped at least four graduated scale 5c being angularly distributed along the circumferential direction of alignment hole 5b, carve One end of ruler 5c is spent close to the edge of alignment hole 5b, and the edge of other end proximity test piece 5a；Manually first by steering tube Column assembly is placed on two support limit assemblies 6, is then spliced by one end of column assy and head end transmission mechanism 2 Afterwards, that is, the position universal joint 8a for detection lug 5a being marched on steering column positive component 5t is driven, and is corresponded to this One end of the cross axle on universal joint 8a, it is manually that the colored identification of end center smearing of cross axle is convex in advance Point, the alignment hole 5b on such detection lug 5a are then carried out with the identification salient point to just, reach detection lug 5a and cross axle with this The end with reaching coaxial mesh, then turns to tubing string assembly and is transported by the cooperation of head end transmission mechanism 2 and end guiding mechanism 4 Dynamic, movement after a certain period of time, then stops operating, and angle when stopping is then that the cross axle in universal joint 8a is equipped with to identification salient point One end be located at the underface of detection lug 5a, then the end of cross axle is continued to, then thin cylinder corresponding with detection lug 5a 5w decline, so that detection lug 5a, close to identification salient point, detection lug 5a can will be apparent that finding out alignment hole 5b due to being transparent material Whether it is in coaxial state with identification salient point, if it is not, then both check whether is the spacing that differs by graduated scale 5c Reach the numerical value of restriction.

Described includes longitudinal electric cylinders and lateral electric cylinders to positive component 5t, and lateral electric cylinders are fixed on testing stand 1, longitudinal electric cylinders Back side connect with the output end of lateral electric cylinders, and the outbound course of the two constitutes cross, and thin cylinder 5w in pacifying vertically On the output end of longitudinal electric cylinders, the output end of thin cylinder 5w is equipped with the linkage board 5p of one end connection fixed thereto, linkage The other end of plate 5p extends between head end transmission mechanism 2 and end guiding mechanism 4, and detection lug 5a is fixed on linkage board 5p The one end；After one end of column assy and head end transmission mechanism 2 splice, then longitudinal electric cylinders and lateral electric cylinders start to drive Dynamic thin cylinder 5w is moved to the position column assy universal joint 8a at this time, longitudinal electric cylinders and lateral electric cylinders with detection lug 5a Cooperation may make the position on the move detection lug 5a accurate, the effect of thin cylinder 5w is so that detection lug 5a is able to vertically Decline is sufficiently close together an end of the cross axle in detection lug 5a and universal joint 8a, can thus allow reality The personnel of testing can be seen that alignment hole 5b whether with identification salient point be in coaxial state etc..

The structure of two support limit assemblies 6 is identical, and two support limit assemblies 6 are respectively close to head end transmission mechanism 2 and end guiding mechanism 4, support limit assembly 6 includes cradle 6a and pushes guide part, and cradle 6a is in being vertically installed at On testing stand 1, it is provided with the pendulum slot 6b of V-structure at the top of cradle 6a, pushes the side that guide part is mounted on cradle 6a； Two cradle 6a are respectively used to accommodate a upper tube of column assy to column and down tube to the outer surface of column；And the two The part of the Guan Xiangzhu of support is its middle section region, after manually placing two Guan Xiangzhu of column assy, respectively Pushing limit is carried out by the pushing guide part of respective position, is prevented unstable in subsequent column assy movement.

Described to push the block 6q that guide part includes screw rod slide unit 6c, lower compression roller 6d and U-shaped structure, screw rod slide unit 6c is in perpendicular Straight setting, block 6q are located at the surface of cradle 6a, and the output end of block 6q and screw rod slide unit 6c is sequentially connected, block 6q's It is open facing towards the table top of testing stand 1, two hinged block 6k is symmetrically arranged in the opening of block 6q, two hinged block 6k lead to respectively Cross a lower pressing spring 6t movable vertically can cooperate with block 6q, and lower compression roller 6d axis connects between two hinged block 6k；Turn After being placed individually on a cradle 6a to two sections of tubing string assembly, screw rod slide unit 6c works at this time, so that block 6q is vertical Decline, purpose be open in lower compression roller 6d towards steering column activity so that the outer surface of lower compression roller 6d and steering column Appearance face contact, and the two is generated and is in close contact, and in the close contact, by the contraction of lower pressing spring 6t, is forced at lower nip roll In tensioning state and steering column appearance face contact, subsequent steering column rotation, frictional force forces lower compression roller 6d around itself axis Line rotation, is in this case just constituted to the limit above steering column, so that steering column mass motion is stablized.

Working principle: two cradle 6a are respectively used to accommodate a upper tube of column assy to column and down tube to column Outer surface；And the part of the Guan Xiangzhu of the two support be its middle section region, manually by two pipes of column assy to After column places, manually one end of column assy is squeezed between two in head end transmission mechanism 2 crowded plywood 3b first, The arc transition 3c of two crowded plywood 3b is smoothly squeezed into therebetween convenient for column assy one end, and is squeezed into, and squeezes conjunction Plate 3b compresses respective crowded conjunction spring 3e, allows column assy one end to enter in the axial movement by avoiding bar 3d, and two A crowded plywood 3b reaches the tensioning limiting up and down to column assy one end by squeezing the tensile force of conjunction spring 3e, and then end passes Driving motor 2d work in motivation structure, so that two-way lead screw 2c is around own axis, two grip block 2e can start at this time It moves toward one another, and clamps the outer surface of column assy one end by respective opening, realize and clamp purpose；Then driving pair The position universal joint 8a that positive component 5t marches to detection lug 5a on steering column, and corresponded on universal joint 8a The end center of cross axle is manually smeared colored identification salient point in advance by one end of cross axle, is detected in this way Alignment hole 5b on piece 5a, which then passes through the identification salient point, reached to just with the end that this reaches detection lug 5a and cross axle Coaxial mesh, then pass through the descending stroke of thin cylinder 5w again, so that detection lug 5a declines and close to identification salient point, with this More intuitively check whether the two is coaxial；Match at this time due to one end of column assy and with the fixation of head end transmission mechanism 2 It closes, then the other end is in 4 front of end guiding mechanism naturally, plate 7b is with end Guiding machine for the evacuation of gas bar 7a driving at this time Structure 4 close to column assy, then the crowded plywood 3b of two in end guiding mechanism 4 start to column assy this one End, which is realized, squeezes limit, then real by the one end of two grip block 2e in end guiding mechanism 4 to column assy Now clamping limit, all screw rod slide unit 6c work at this time so that respective block 6q is vertically lowered, purpose be open under Pressure roller 6d is movable towards steering column, so that the appearance face contact of the outer surface of lower compression roller 6d and steering column, and the two generates It is in close contact, in the close contact, by the contraction of lower pressing spring 6t, lower nip roll is forced to be in tensioning state and steering column appearance Face contact, then experiment electric motor 2k drives the U-shaped seat 2b of its position to rotate, and makes its 360 degree of rotation in notch 1a, turns at this time The upper tube of tubing string assembly rotates to column, then by universal joint 8a make it is lower to tubing string rotate, lower tubular column be end guiding The clamping limit of mechanism 4, then down tube column end is to pass through torque to rotate with the U-shaped seat 2b of its position, test is constituted with this It acts, in steering column rotation, frictional force forces lower compression roller 6d around own axis, in this case just constitutes to steering column The limit of top, so that steering column mass motion is stablized；It after testing a period of time, then stops operating, angle when stopping is then It is that the cross axle in universal joint 8a is equipped with the underface for identifying that one end of salient point is located at detection lug 5a, then by the end of cross axle Portion continue it is corresponding with detection lug 5a, then thin cylinder 5w decline so that detection lug 5a approach identify salient point, detection lug 5a due to It is transparent material, can will be apparent that finding out whether alignment hole 5b and identification salient point are in coaxial state, if it is not, then passing through quarter Degree ruler 5c carries out checking the numerical value whether spacing of the two difference reaches restriction.

The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model Any restrictions out, thus it is any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent Variation and modification, in the range of still falling within the technical solution of the utility model.

Claims

1. a kind of axial displacement experimental rig of automobile turning pipe pillar assembly is the testing stand of rectangular configuration including work top (1), it is characterised in that: experimental rig includes head end transmission mechanism (2), end guiding mechanism (4), avoiding mechanism (7) and inspection It surveys mechanism (5), head end transmission mechanism (2) is fixedly mounted on one end at the top of testing stand (1), and end guiding mechanism (4) can live Dynamic setting is outside the other end of testing stand (1), and it can be towards head end transmission mechanism (2) by avoiding mechanism (7) Direction is back and forth advanced, and testing agency (5) is mounted on the top of testing stand (1), and is also located at head end transmission mechanism (2) and end Between guiding mechanism (4), the two sides of testing agency (5) are respectively arranged with a support to put column assy and limit Component (6), testing agency (5) include detection lug (5a), thin cylinder (5w) and to positive component (5t), and detection lug (5a) is in water It puts down and movable vertically can be arranged above testing stand (1) by thin cylinder (5w), thin cylinder (5w) is by just Component (5t) can along testing stand (1) long side or short side direction it is movable be arranged on testing stand (1).

2. the axial displacement experimental rig of automobile turning pipe pillar assembly according to claim 1, it is characterised in that: the head Holding transmission mechanism (2) includes guide plate (2a), U-shaped seat (2b), two-way lead screw (2c) and driving motor (2d), guide plate (2a) In being vertically installed on testing stand (1), U-shaped seat (2b) is hinged on guide plate (2a) towards before detection lug (5a) by transmission shaft Side, facing towards detection lug (5a), two-way lead screw (2c) axis connects in the opening of U-shaped seat (2b) opening of U-shaped seat (2b), driving electricity Machine (2d) is mounted on the outside of U-shaped seat (2b) and is sequentially connected with two-way lead screw (2c), and the opening external symmetry of U-shaped seat (2b) is set There are two grip block (2e), grip block (2e) is V-structure, and the opening face of two grip blocks (2e) is oppositely arranged, and the two Cooperated respectively by a nut slider and two-way lead screw (2c) transmission.

3. the axial displacement experimental rig of automobile turning pipe pillar assembly according to claim 2, it is characterised in that: the head Holding transmission mechanism (2) further includes the identical extrusion (3) of two structures, and two extrusions (3) are located at the upper of U-shaped seat (2b) Lower two end faces, clamping piece include fixed block (3a), squeeze plywood (3b) and avoid bar (3d), one end of fixed block (3a) with it is U-shaped Seat (2b) is fixedly connected, and the other end of fixed block (3a) extends to the middle of two grip blocks (2e), and avoids bar (3d) In vertical one end for running through fixed block (3a), squeezing plywood (3b) is in the inside for being positioned horizontally in fixed block (3a), and its also with Evacuation bar (3d) is fixedly connected, and two crowded plywood (3b) are squeezed by one close the interior of spring (3e) and respective fixed block (3a) respectively Side elastic connection.

4. the axial displacement experimental rig of automobile turning pipe pillar assembly according to claim 3, it is characterised in that: described to keep away Mechanism (7) is allowed to include gas bar (7a), evacuation plate (7b) and symmetrically arranged two sliding rails of short side perpendicular bisector along testing stand (1) (7c), evacuation plate (7b) cooperate with two sliding rail (7c) horizontal anomalous movements, and end guiding mechanism (4) is mounted in evacuation plate (7b), End guiding mechanism (4) is identical as the structure of head end transmission mechanism (2), and gas bar (7a) is mounted on the outside of a sliding rail (7c) simultaneously And to drive evacuation plate (7b) close to or far from testing stand (1).

5. the axial displacement experimental rig of automobile turning pipe pillar assembly according to claim 3, it is characterised in that: the head The back side of guide plate (2a) in end transmission mechanism (2) is provided with experiment electric motor (2k), and experiment electric motor (2k) is to drive correspondence The transmission shaft of the position guide plate (2a) is offered around own axis, and on testing stand (1) for corresponding with the transmission shaft The notch (1a) that can rotate of U-shaped seat (2b).

6. the axial displacement experimental rig of automobile turning pipe pillar assembly according to claim 1, it is characterised in that: the inspection Surveying piece (5a) is circular configuration, and is also made of transparent material, runs through at the center of detection lug (5a) and is equipped with alignment hole (5b), The upper surface of detection lug (5a) is equipped at least four graduated scales (5c) being angularly distributed along the circumferential direction of alignment hole (5b), graduated scale The one end of (5c) is close to the edge of alignment hole (5b), and the edge of other end proximity test piece (5a).

7. the axial displacement experimental rig of automobile turning pipe pillar assembly according to claim 6, it is characterised in that: described right Positive component (5t) includes longitudinal electric cylinders and lateral electric cylinders, and lateral electric cylinders are fixed on testing stand (1), the back side and cross of longitudinal electric cylinders It is connected to the output end of electric cylinders, and the outbound course composition of the two is cross, thin cylinder (5w) is in be vertically installed at longitudinal direction On the output end of electric cylinders, the output end of thin cylinder (5w) is equipped with the linkage board (5p) of one end connection fixed thereto, linkage board The other end of (5p) extends between head end transmission mechanism (2) and end guiding mechanism (4), and detection lug (5a) is fixed on connection The one end of movable plate (5p).

8. the axial displacement experimental rig of automobile turning pipe pillar assembly according to claim 1, it is characterised in that: two institutes The structure for stating support limit assembly (6) is identical, and two support limit assemblies (6) are respectively close to head end transmission mechanism (2) and end Guiding mechanism (4), support limit assembly (6) include cradle (6a) and push guide part, and cradle (6a) is in vertically-mounted On testing stand (1), it is provided with the pendulum slot (6b) of V-structure at the top of cradle (6a), pushes guide part and is mounted on cradle The side of (6a).

9. the axial displacement experimental rig of automobile turning pipe pillar assembly according to claim 8, it is characterised in that: under described Pressure guide part includes the block (6q) of screw rod slide unit (6c), lower compression roller (6d) and U-shaped structure, and screw rod slide unit (6c) is in set vertically It sets, block (6q) is located at the surface of cradle (6a), the output end transmission connection of block (6q) and screw rod slide unit (6c), block The opening of (6q) is symmetrically arranged with two hinged blocks (6k), two hinges in the opening of block (6q) facing towards the table top of testing stand (1) Connect block (6k) movable vertically can be cooperated respectively by a lower pressing spring (6t) with block (6q), and lower compression roller (6d) axis connects Between two hinged blocks (6k).