CN1229636C - Tyre evenness tester - Google Patents

Abstract

A tire uniformity machine is provided to prevent axes of rims from being misaligned while shortening a measurement cycle by installing a rim width adjustment unit in a first spindle. A tire uniformity machine includes an upper rim(2) for supporting and holding an upper bead section of a tire(1) and a lower rim(3) for supporting and holding a lower bead section of the tire(1). The upper rim(2) is detachably attached to a lower end of an upper spindle(5). The upper rim(2) is oppositely aligned with respect to the lower rim(3) by means of lower and upper spindles(4,5) in such a manner that axes of the upper and lower rims(2,3) are aligned in the same line. The lower and upper spindles(4,5) are installed on a top frame(6) and a base frame(8), respectively. The top and base frames(6,8) are supported by an installation frame(7).

Description

Tyre uniformity testing machine

Technical field

The present invention relates to simultaneously make it to rotate the inhomogeneity tyre uniformity testing machine of checking tire towards tire supply pressurized air by one.

Background technology

Usually, tyre uniformity testing machine utilizing respectively after wheel rim is clamped the bead part up and down of tire from both sides up and down, is supplied pressurized air in tire, checks the homogeneity that makes the tire of tire when wheel rim rotates up and down.Simultaneously, the tyre uniformity testing machine of Gou Chenging like this for many kinds limited-production form of the tire of the various bead widths that are adapted to produce at same workshop, wishes can check the tire of various bead widths on a table apparatus.

Therefore, in the prior art, the scheme of following structure has been proposed, promptly, under installing with one heart below the lower spindle of wheel rim, bindiny mechanism between the wheel rim that is made of oil hydraulic cylinder that connects wheel rim up and down is set, and, between wheel rim below the bindiny mechanism, the rim width set mechanism that setting is made of oil hydraulic cylinder, utilize the rim width set mechanism that bindiny mechanism between wheel rim (lower spindle) and wheel rim is moved together to make the tyre bead of rim width and tire corresponding after, utilize between wheel rim bindiny mechanism closely to connect and fixing about wheel rim (for example, opening flat 10-160643 communique) with reference to the spy.

But, in above-mentioned prior art constructions because bindiny mechanism's tandem configuration below lower spindle between rim width set mechanism and wheel rim, so, tyre uniformity testing machine along the vertical direction (the turning axle direction of wheel rim up and down) maximization becomes.Thereby, for example, utilize the height and position reduction of wheel rim maintenance tire up and down, when reducing the height of tyre uniformity testing machine, trench need be excavated enough deeply so that hold bindiny mechanism between rim width set mechanism and wheel rim owing to relation with ceiling.Consequently, the problem that causes the cost of equipment when introducing tyre uniformity testing machine to increase.Simultaneously, in order to be adapted in recent years to the requirement of many kinds limited-production, need further to enlarge rim clearance from variable range, this problem becomes more remarkable.

Thereby first problem of the present invention provides a kind of tyre uniformity testing machine that wheel rim up and down rotates axial maximization and can change rim width that suppresses.

Simultaneously, the tyre uniformity testing machine of prior art is provided with male cone (strobilus masculinus) portion and female cone portion in the inboard of wheel rim up and down, and two taperings are disposed with one heart with respect to the axle center of wheel rim up and down.Simultaneously, be connected and installed with wheel rim up and down on during lower spindle, by one side male cone (strobilus masculinus) portion is located at radial direction along the inclined wall of female cone portion, one side cooperates and compresses, one side makes the axle center unanimity of wheel rim up and down, one side will go up lower spindle and connect.Simultaneously, be accompanied by this connection, on utilizing wheel rim and down wheel rim with tire on bead part and after bead part remains on airtight conditions respectively down, in tire, supply pressurized air, inspection makes the homogeneity (for example, with reference to spy open flat 6-134890 communique) of tire when wheel rim rotates up and down.

In addition, in the prior art, proposed to replace the male cone (strobilus masculinus) portion that compresses in the said structure to be connected lower spindle with female cone portion, lock shaft is inserted the inside of going up lower spindle, the engaging position that is arranged on the lower spindle is engaged with the position that is stuck on being arranged on lock shaft, the scheme (for example, opening flat 11-223571 communique) that connects the structure that goes up lower spindle via lock shaft with reference to the spy.

But, spy in above-mentioned prior art opens in the structure of flat 6-134890 communique, owing to utilize the cooperation of male cone (strobilus masculinus) portion and female cone portion to position, so the axial aligning with last lower spindle is than the advantage that is easier to carry out, but last lower spindle can only be male cone (strobilus masculinus) portion to be compressed with female cone portion be connected.Thereby when checking tire, the interior pressure that is accompanied by tire applies the reacting force of the axial direction of axle (even a few kg/cm ²Interior pressure, reacting force also becomes tens tons) time, in order to obtain the connection power that lower spindle connects with enough resistibilitys, need have the frame of the high rigidity that can support reacting force and large-scale bearing, and then needing generation to surpass the large-scale oil hydraulic cylinder of the big thrust of reacting force, the maximization that exists device is a unavoidable problem.

On the other hand, open in the structure of flat 11-223571 communique the spy, replace compressing male cone (strobilus masculinus) portion in the special structure of opening flat 6-134890 communique and be connected lower spindle with female cone portion, lock shaft is inserted into axle inside, the engaging position be located on the axle is engaged with the position that is stuck on being located at lock shaft, axle is fixed on the lock shaft.Therefore, though can not be accompanied by frame high rigidization, compress the maximization of oil hydraulic cylinder and bearing, when carrying out the mensuration of tire, when applying the reacting force that is accompanied by inner pressure of tire, axle and lock shaft can obtain to have the power that is connected of enough resistibilitys.But, owing to the inside that lock shaft is inserted into axle, so, can not avoid between to produce the gap, therefore, exist owing to what off-centre caused and produce dysgenic problem measuring precision.For this problem, can dwindle the gap as much as possible, but because the restriction of the precision of machining precision and assembling, the gap can not be narrowed down to is enough to prevent eccentric degree.And then, in the structure of 11-223571 communique, before being inserted into lock shaft in the axle, can not cause breakage when contacting for both, must fully underspeed, exist the long problem of cycle period.

Thereby second problem of the present invention provides and a kind ofly need not high machining precision and just can fully prevent the skew in axle center, and can shorten the tyre uniformity testing machine in mensuration cycle.

Summary of the invention

In order to solve above-mentioned first problem, tyre uniformity testing machine of the present invention is by constituting with the lower part: the wheel rim that keeps the bead part of tire, first and of aforementioned wheel rim is installed with one heart: a center roller, and can make the rim width adjusting mechanism that the bead width of rim width when aforementioned first and second axle is connected to each other and tire changes accordingly; Here, aforementioned rim width adjusting mechanism is by constituting with the lower part: rotatably be provided in the screw axis member on aforementioned first axle, and can be connected on aforementioned second axle, with by the rotation of said spiral shaft component to mode threaded engagement that rim width direction advance and retreat the move interior barrel member to the said spiral shaft component.

According to said structure, owing in first axle, be equipped with the rim width adjusting mechanism, so, compare with the situation that the rim width adjusting mechanism is configured in the axle outside, suppress tyre uniformity testing machine in the axial maximization of the rotation of wheel rim, can change the width of wheel rim.Whereby, for example, when tyre uniformity testing machine being introduced, can excavate superficially with holding the trench that axle uses in the mode that becomes turning axle direction and the corresponding to state of vertical direction, so, required expense in the time of can suppressing to introduce equipment.In addition, if owing to make the rotation of screw axis member, the barrel member advance and retreat move in making, and can adjust the width of wheel rim, so simple in structure.And then, because the rotation of screw axis member can utilize general detecting sensor control device to be easy to control, so, for example, if check on the bead width of tire in advance, can be easy to automatically rim width be set for the width of this tyre bead.

In the tyre uniformity testing machine of said structure, aforementioned rim width adjusting mechanism can have the outer barrel member that wheel rim is installed, rotation drives the spindle drive of aforementioned outer barrel member, can switch the clutch mechanism that is connected and removes this connection of aforementioned outer barrel member and said spiral shaft component.

According to said structure, spindle drive can be had concurrently two kinds of purposes, that is, the switching by clutch coupling is used for the purposes of the adjustment of rim width with spindle drive, and the purposes that makes the inspection of wheel rim rotation carrying out tire.

Here, it is characterized in that said spiral shaft component and interior barrel member interpolation are arrived in the aforementioned outer barrel member, and fast rim width direction forms keyway before the outer peripheral face upper edge of barrel member in aforementioned, on the barrel member, feather key is coupled in the aforementioned keyway with can move freely outside aforementioned.

According to said structure, utilize simple structure, can realize that rotation makes interior barrel member moving along the wheel rim direction by the screw axis member.

In addition, in tyre uniformity testing machine of the present invention, aforementioned rim width adjusting mechanism can be equipped with the arrestment mechanism of the rotation that can forbid the said spiral shaft component.

According to said structure, owing to can reliably the screw axis member be stopped, so, rim width can correctly be adjusted.

In addition, in tyre uniformity testing machine of the present invention, can have the rotation testing agency of the rotary state that detects aforementioned outer barrel member and said spiral shaft component respectively, and have the control device that monitors the function of operating state according to aforementioned each rotary state.As the supervision of operating state, judge whether correctly to carry out the adjustment of rim width.

According to said structure, can detect rim width when adjusting and the misoperation during tyre inspection.

In order to solve above-mentioned second problem, tyre uniformity testing machine of the present invention is by constituting with the lower part: the wheel rim that keeps the bead part of tire, first and second center roller of aforementioned wheel rim is installed with one heart, in order on aforementioned wheel rim, to keep each bead part of aforesaid tyre, and an aforementioned center roller is connected to each other, make at least one the axle travel mechanism that moves that comprises aforementioned first axle in the aforementioned center roller, when aforementioned axle is connected to each other, one side simultaneously makes the axle center axle center adjusting mechanism consistent with the axle center of aforementioned first axle of aforementioned second axle by the effect of the snap-in force performance wedge that is produced by two axles, and the position that its engaging is become subtend when aforementioned axle is connected to each other concerns, the locking mechanism of the connection power of the inner pressure of tire when creating antagonism tyre inspection.

According to said structure, since it be a kind of axle center adjusting mechanism interior Zhou Fangxiang of simultaneously utilizing first axle snap-in force flexibly undergauge simultaneously adjust the structure in the axle center of second axle, so, in the time of can bringing into play the connection power connection axle of utilizing locking mechanism, one side plays a part buffering, and one side makes axle center consistent with each other, axle axle center each other adjust function.Whereby, for example,, make axle axle center unanimity each other reliably even, under the situation that axle axle center each other is offset slightly, also can not can cause breakage owing to reason such as the machining precision of each parts and assembly precision be lower.And then, the axle high-speed mobile is interconnected.Thereby, need not high machining precision, can fully prevent desaxe, can shorten the mensuration cycle simultaneously.

In the tyre uniformity testing machine of said structure, aforementioned axle center adjusting mechanism have intercalation to the slip lateral circle surface of aforementioned second axle, the chuck member that tilts in the mode that reduces more the closer to the aforementioned first axle external diameter of outer peripheral face, for give with respect to the outer peripheral face of aforementioned chuck member aforementioned in the snap-in force of Zhou Fangxiang, on aforementioned first axle, form can chimeric aforementioned chuck member interior all dip plane.

According to said structure, can utilize general chuck clamping mode to form the axle center adjusting mechanism.In addition, make chuck according to all dip plane in being fitted on the time owing to form big gap at radial direction, so, even axle axle center each other produces big skew, the chuck member is coupled on interior all dip plane reliably.

And then the axle center adjusting mechanism with this chuck member also can have the load maintainer that aforementioned chuck member is loaded to the aforementioned first axle direction.

According to said structure, even be in two axles of connection status because the reacting force of tire slightly when axis direction leaves, because load maintainer makes the chuck member move to the direction of an axle, is kept mated condition, so, can not reduce the snap-in force of giving the chuck member.Whereby, keep the axle center at connection initial stage to adjust function.

And then, at axle center adjusting mechanism with the chuck member that comprises this load maintainer, aforementioned axle center adjusting mechanism makes aforementioned chuck component elasticity undergauge with the snap-in force of the interior Zhou Fangxiang of aforementioned first axle, loads with the big loading force of friction force of the slip lateral circle surface of aforementioned chuck member when adjusting function in the performance axle center and aforementioned second axle.

According to said structure, function is adjusted in the axle center that can play stably.

For another tyre uniformity testing machine of the present invention of solving above-mentioned second problem by constituting with the lower part: the wheel rim that keeps the bead part of tire, first and second center roller of aforementioned wheel rim is installed with one heart, be arranged on the concavity connecting portion on aforementioned first axle, be arranged on the convex connecting portion on aforementioned second axle, when remaining on the aforementioned wheel rim aforementioned convex connecting portion is inserted in the aforementioned concavity connecting portion for each bead part with aforesaid tyre, an aforementioned center roller is connected to each other, make at least one the axle travel mechanism that in axial direction moves in the aforementioned center roller, have for when an aforementioned center roller is connected to each other, between an aforementioned center roller, produce the effect of wedge in the gap of the circumferential formation of axle and be installed at the axle center adjusting mechanism of the wedge shape sleeve in this gap, and, have the position relation that when an aforementioned center roller is connected to each other, makes it to be in subtend and be arranged on holding section on aforementioned concavity connecting portion and the aforementioned convex connecting portion, by the engaging of aforementioned holding section, the locking mechanism of the connection power of the interior pressure of the tire when checking tire that creates antagonism.

According to said structure, the axle center adjusting mechanism is inserted in the concavity connecting portion of aforementioned first axle by the convex connecting portion with aforementioned second axle, when utilizing the connection power of locking mechanism that axle is joined to one another, the effect of the wedge of the wedge shape sleeve of utilization between two connecting portions can be adjusted axle axle center each other.Thereby, when axle is coupled together, can bring into play the axle center that makes axle axle center unanimity each other and adjust function.Whereby, even for example owing to reason such as the machining precision of each parts and assembly precision be lower, when axle axle center each other is offset slightly, because the axle one side simultaneously is adjusted the axle center by the wedge shape cage guiding, so, can not cause breakage, make axle axle center unanimity each other reliably.And then, can make axle move connection at a high speed.Whereby, need not high machining precision, can fully prevent the skew in axle center, can shorten the minute cycle.

In the tyre uniformity testing machine of said structure, also the wedge shape sleeve of aforementioned axle center adjusting mechanism can be made the chuck member.Whereby, can than general member bring into play easier and biglyyer the wedge shape sleeve function.

In the tyre uniformity testing machine of said structure, aforementioned axle center adjusting mechanism can have the load maintainer to the direction loading of the wedging action that strengthens aforementioned wedge shape sleeve.Whereby, can fully prevent the reduction of axle center adjustment function when checking tire.In addition, the pooling feature in the time of can strengthening the axle connection.

In above-mentioned tyre uniformity testing machine, when comprising position at least, make the side action at least wherein at this position, aforementioned locking mechanism is engaged to an other side with convex-concave portion by aforementioned holding section.Whereby, can utilize simple structure to realize locking mechanism.

In the tyre uniformity testing machine of said structure, aforementioned concavity connecting portion also can be used the cylindrical member formation that in axial direction can change the position with respect to the axle that this concavity connecting portion side is set.Whereby, mobile by cylindrical member is in axial direction advanced and retreat, can be adjusted to rim width arbitrarily.

In the tyre uniformity testing machine of said structure, aforementioned cylindrical member also can utilize have the female screw be located on this cylindrical member and with it the jack machinism of the pin thread of threaded engagement can change the formation of position.Whereby, it is mobile to utilize simple structure that cylindrical member is advanced and retreat vertically.

Description of drawings

Fig. 1 is the key diagram of the major part of expression tyre uniformity testing machine.

Fig. 2 is the key diagram of the total of the tyre uniformity testing machine seen during from top view.

Fig. 3 is the key diagram of the total of the tyre uniformity testing machine seen during from viewed in plan.

Fig. 4 is the key diagram of the major part of expression tyre uniformity testing machine.

Fig. 5 is the simple structural drawing of rotation testing agency.

Fig. 6 is the simple structural drawing of mechanical lock mechanism and axle center adjusting mechanism.

Fig. 7 is the key diagram of mechanical lock mechanism and axle center adjusting mechanism.

Fig. 8 is the key diagram of the total of the tyre uniformity testing machine seen during from viewed in plan.

Embodiment

According to Fig. 1 to Fig. 8 embodiments of the present invention are described below.

According to the tyre uniformity testing machine of present embodiment as shown in Figure 2, comprise the last wheel rim 2 of the last bead part that keeps tire 1, and the following wheel rim 3 that keeps the following bead part of tire 1.Last wheel rim 2 is arranged on the leading section (bottom) of upper spindle 4 removably.On the other hand, following wheel rim 3 is arranged on the leading section (upper end) of lower spindle 5 removably.When two axles 4,5 make wheel rim 2 with following wheel rim 3 subtends, make the axle center of two wheel rims 2,3 be on the same straight line, consistent with each other.

Above-mentioned upper spindle 4 and lower spindle 5 are separately positioned on top frame 6 and the bottom frame 8.These frames the 6, the 8th, top frame 6 flatly is configured on the upper side position, bottom frame 8 flatly be configured on the lower position by frame 7 supportings of a plurality of vertical settings.Each vertical frame 7 is erect setting from laying face 9 along vertical direction.Lay face 9 and be equipped with trench 10 at middle body with frame 7 area surrounded that vertically are provided with.

Above-mentioned trench 10 can hold the bottom of lower spindle 5.Lower spindle 5 comprises the following wheel rim maintaining body 11 of wheel rim 3 down of maintenance removably, makes down first elevating mechanism 12 of wheel rim maintaining body 11 liftings, makes down second elevating mechanism 13 of wheel rim maintaining body 11 and 12 1 liftings of first elevating mechanism.Second elevating mechanism 13 has the supporting horizontal supporting member 14 of wheel rim maintaining body 11 down, be located at the nut member 15 on the base portion of horizontal supporting member 14, with nut member 15 threaded engagement, along the ball screw member 16 that vertical direction is provided with, rotation drives the ball-screw CD-ROM drive motor 17 of ball screw member 16.

Simultaneously, second elevating mechanism 13 of Gou Chenging is by making ball screw member 16 to required direction and angle rotation by ball-screw CD-ROM drive motor 17 like this, make nut member 15 liftings, via the horizontal supporting member 14 that is connected on this nut member 15, first elevating mechanism 12 can be navigated to required height and position.And then first elevating mechanism 12 can will descend wheel rim maintaining body 11 to move to tire holding position.

Horizontal supporting member 14 in above-mentioned second elevating mechanism 13 supports first elevating mechanism 12 along vertical direction.First elevating mechanism 12 is configured in the side of second elevating mechanism 13 side by side.Whereby, first elevating mechanism 12 and second elevating mechanism 13, compare with the situation when realizing making down in described two mechanisms 12,13 ultimate range of wheel rim maintaining body 11 liftings with the path increment of a table oil cylinder pressure, can shorten size, thereby reduce the required degree of depth of trench 10.

Above-mentioned first elevating mechanism 12 is made of the oil hydraulic cylinder that piston rod 12a is configured in upper side position.The front end of piston rod 12a (upper end) is connected to down on the wheel rim maintaining body 11.In addition, when first elevating mechanism 12 rises to the position of tyre dismounting by second elevating mechanism 13,, can carry out the dismounting of the tire 1 that undertaken by two wheel rims 2,3 by the advance and retreat of piston rod 12a.

As mentioned above, by the following wheel rim maintaining body 11 of two elevating mechanisms, 12,13 liftings as shown in Figure 1, have and keep the following wheel rim supporting member 20 of wheel rim 3 down.Here, Fig. 1 represents clamping turning axle S, state (right side among the figure) that the distance opened between the wheel rim 2,3 is very big and the state (left side among the figure) that the distance of opening between the wheel rim 2,3 is smaller.Following wheel rim supporting member 20 has the recess 20a that is formed on the upper surface central portion, is formed on the slip lateral circle surface 20b on the periphery wall of upper end, is formed on the flange part 20c of the lower end side of slip lateral circle surface 20b.Recess 20a and slip lateral circle surface 20b support mechanical lock mechanism 30 and the axle center adjusting mechanism of describing later 50 respectively, and flange part 20c forms in the following mode of interior all sides of supporting down wheel rim.In addition, mechanical lock mechanism 30 and axle center adjusting mechanism 50 constitute the convex connecting portion that makes lower spindle 4,5 be connected to each other usefulness.

In addition, the lateral circle surface of following wheel rim supporting member 20 below that is flange part 20c is surrounded by urceolus supporting mass 22.But under urceolus supporting mass 22 free rotary ground supportings wheel rim supporting member 20 time, with the piston rod 12a supporting of the mode that makes down 11 liftings of wheel rim maintaining body via urceolus supporting mass 22 by first elevating mechanism 12.In the bottom of urceolus supporting mass 22, form air supply orifice 22a from outer peripheral face to inner peripheral surface.The upper end of air pipe arrangement 26 is connected on the air supply orifice 22a.As shown in Figure 2, air pipe arrangement 26 is from down wheel rim maintaining body 11 is sagging along first elevating mechanism 12, but by horizontal supporting member 14 free liftings be supported after, lower end part is in trench 10.In addition, the bottom of air pipe arrangement 26 is connected on the air supply device via not shown air hose.

In addition, as shown in Figure 1, the inside at following wheel rim supporting member 20 forms the bar through hole 20d consistent with turning axle S (axle center of following wheel rim 3), simultaneously, forms air supply orifice 20e along bar through hole 20d.Air supply orifice 20e, its upper end is at the place, top position of the flange part 20c of following wheel rim supporting member 20 opening, its bottom is communicated with the air supply orifice 22a of urceolus supporting mass 22, whereby, and can be from above-mentioned air supply device supply pressurized air in the tire 1 that keeps by wheel rim 2,3.

On the other hand, but bar member 24 free liftings pass bar through hole 20d.The bottom of bar member 24 can be connected on the piston rod 23a of bar elevating oil cylinder 23 with rotating freely, bar elevating oil cylinder 23 be fixedly installed on urceolus supporting mass 22 below.Simultaneously, bar elevating oil cylinder 23 makes bar member 24 relatively move along the vertical direction with respect to following wheel rim supporting member 20.

The upper end of above-mentioned bar member 24 is connected on the mechanical lock mechanism 30.The cone shape dip member 31 that mechanical lock mechanism 30 is equipped with lateral circle surface to tilt, the claw component 32 that inner peripheral surface can contact with being free to slide with the lateral circle surface of dip member 31 is supported to claw component 32 the pawl supporting mass 33 that can move freely along radial direction.Claw component 32 has jog 32a on outer peripheral face.The jog 32a of claw component 32 can mesh with the jog 41a on the interior barrel member 41 that is formed on upper spindle 4.Whereby, mechanical lock mechanism 30 can make claw component 32 move along the radial direction advance and retreat along the lateral circle surface of dip member 31 by the lifting of dip member 31.Simultaneously, the discrepancy of mechanical lock mechanism 30 by claw component 32 is engaged in the jog 41a of interior barrel member 41 of upper spindle 4 jog 32a, and upper spindle 4 and lower spindle 5 are connected at the fixing state of above-below direction.That is, mechanical lock mechanism 30, when last lower spindle 4,5 was connected to each other, the position relation that separates distance (gap) subtend of regulation with two axles 4,5 cooperatively interacted the connection power of the inner pressure of tire when creating antagonism tyre inspection.

Downside in the peripheral direction of above-mentioned mechanical lock mechanism 30 is provided with axle center adjusting mechanism 50.Axle center adjusting mechanism 50 is equipped with as to make down the longitudinal section consistent with the axle center of interior barrel member 41, axle center of wheel rim supporting member 20 be a kind of chuck member 51 of the wedge shape sleeve of wedge shape, and with chuck member 51 a plurality of load maintainers 52 of direction loading up and down.

Above-mentioned chuck member 51 is the outward appearance of conical sleeve tubular as Fig. 1 and shown in Figure 6, and intercalation the axle center of axle center and following wheel rim supporting member 20, promptly descends the axle center of wheel rim 3 (another axle) as one man to be provided with to the slip lateral circle surface 20b of following wheel rim supporting member 20.Chuck member 51 has elastic force, and the mode that increases from upside to the downside external diameter with outer peripheral face 51a tilts.In addition, on the outer peripheral face 51a of chuck member 51, along the vertical direction uniformly-spaced to form a plurality of slit 51b.These slits 51b forms in the mode that open end is positioned on the alternate positions, and the snap-in force by Zhou Fangxiang in utilizing flexibly makes chuck member 51 undergauges, can be easy to and reduces its internal diameter significantly.

As shown in Figure 7, in above-mentioned chuck member 51 is coupled on the connecting portion of concavity of barrel member 41.Simultaneously, when chuck member 51 is connected to each other at last lower spindle 4,5, the effect that between two connecting portions, produces wedge in the gap that the axle circumferential direction forms.In addition, the concavity connecting portion of interior barrel member 41 has the interior all dip plane 41b that increase from upside to the downside internal diameter on the internal perisporium of bottom.In all dip plane 41b the chuck member 51 of convex connecting portion be directed and insert be coupled in the concavity connecting portion of barrel member 41 time, by the snap-in force of interior Zhou Fangxiang being given the outer peripheral face 51a of chuck member 51, make chuck member 51 undergauges.Whereby, axle center adjusting mechanism 50 performance chuck members 51 elasticity undergauges, simultaneously that the whole circumference of slip lateral circle surface 20 is fastening, one side makes down the axle center consistent with the axle center of interior barrel member 41, the axle center of wheel rim supporting member 20 adjust function.

Above-mentioned chuck member 51 upward, promptly strengthens the wedging action of chuck member 51 by load maintainer 52 direction loads.Load maintainer 52 equally spaced is configured in down the root portion of the flange part 20c of wheel rim supporting member 20.Load maintainer 52 forms bolt shapes, have with chuck member 51 contact below on push away member 53 and will on push away the spring member 54 that member 53 loads upward.The chuck member 51 when setting for the loading force of spring member 54 greater than performance axle center adjustment function and the value of the friction force of the slip lateral circle surface 20 of following wheel rim supporting member 20.Whereby, when barrel member 41 and chuck member 51 are brought into play axle center adjustment functions in utilizing, under the situation that lower spindle 5 descends,, make it to keep constant, prevent the reduction of axle center adjustment function with the position relation of interior barrel member 41 by pushing away on the chuck member 51.

In addition, even under the situation of the lateral load the when loading force of spring member 54 set on the tire 1 of inflated condition for effect pushing cylinder 102 shown in Figure 2 is arranged, the value that the position relation of chuck member 51 and interior barrel member 41 is changed.Whereby, owing to when the inspection of tire 1, keep the effect of wedge, so, can bring into play the adjustment function in axle center reliably.

As shown in Figure 1, above-mentioned interior barrel member 41 is contained in the outer barrel member 42.These interior barrel members 41 and outer barrel member 42 and the screw axis member of describing later 45 constitute the part of rim width adjusting mechanism 58 together.Outer barrel member 42 is in order to have as the function of last wheel rim maintaining body and be equipped with flange part 42a in lower, outer perimeter portion.In addition, wheel rim detecting sensor 28 (omitting on the figure) in the configuration of the outside of flange part 42a.

In addition, interior barrel member 41, on inner peripheral surface, be formed with above-mentioned jog 41a and in all dip plane 41b, simultaneously, at the inside formation horizontally set 41c of portion.When the 41c of horizontally set portion sets top contact the with pawl supporting mass 33 for, make the jog 41a subtend of the jog 32a and the interior barrel member 41 of claw component 32.In addition, on the outer peripheral face of interior barrel member 41, form keyway 41e along the vertical direction.On keyway 41e, cooperate feather key 43 with can move freely.For the rotation of barrel member 41 in forbidding, feather key 43 is fixedly installed on the outer barrel member 42 with respect to outer barrel member 42.

And then, form the female screw 41d of portion in the upper end of interior barrel member 41.On the outer screw section 45a of the 41d of female screw portion threaded engagement to the bottom that is formed at screw axis member 45.Screw axis member 45 constitutes jack machinism, the position of barrel member 41 in can in axial direction changing with respect to lower spindle 5.Specifically, screw axis member 45 as shown in Figure 4, axle center and turning axle S as one man dispose, but top free rotary ground supporting axle barrel member 46.But axle barrel member 46 free rotary ground supportings are on top frame 6, and the bottom is connected on the upper end of outer barrel member 42.

In addition, in the upper end of screw axis member 45 clutch mechanism 47 is set.Clutch mechanism 47 can carry out being connected of screw axis member 45 and axle barrel member 46 and be connected the switching of removing.Specifically, clutch mechanism 47 is connected stationary state at ON (connection) state with screw axis member 45 and axle barrel member 46, and two members 45,46 can rotate integrally.On the other hand, clutch mechanism 47 is removed being connected of screw axis member 45 and axle barrel member 46 at OFF (disconnection) state, and each member 45,46 can independently rotate.

And then, in the upper end of screw axis member 45 brake disc 48 is set.Brake disc 48 can be braked device 49 clampings.Clamping device 49 is fixedly installed on the top frame 6 via not shown supporting member.When clamping device 49 is forbidden 45 rotations of screw axis member, be in ON (connection) state, clamping brake disc 48 when allowing 45 rotations of screw axis member, is in OFF (disconnection) state, and brake disc 48 is unclamped.

In addition, spindle drive 56 is set on top frame 6.Spindle drive 56 is connected on the axle barrel member 46 via driving belt 57, can be with any direction and arbitrary speed live spindle barrel member 46.Simultaneously, the upper spindle 4 of barrel member 42, screw axis member 45, axle barrel member 46 outside barrel member 41 reaches in axis direction is equipped with like this, disconnect, simultaneously make spindle drive 56 actions by one side with clutch mechanism 47 connections and with clamping device 49, can make along whole members 41,42,45,46 of axis direction and rotate integrally.In addition, upper spindle 4, make clutch mechanism 47 be in off-state and clamping device 49 is in on-state by one side, one side makes spindle drive 56 actions, with respect to 45 rotations of fixing screw axis member, can make inner core member 41 move (lifting) by barrel member 41 in making with respect to outer barrel member 42 advance and retreat.

Above-mentioned upper spindle 4 can utilize axle testing agency 60 to detect sense of rotation, revolution and the anglec of rotation of screw axis member 45 and axle barrel member 46.Rotation testing agency 60 comprises via first belt 61 being connected to first belt pulley 63 on the screw axis member 45 as shown in Figure 5, is connected to second belt pulley 64 on the axle barrel member 46 via second belt 62.First belt pulley 63 is connected on first gear 67 in the basket 65 via rotating freely first turning axle 66 of ground axle suspension on basket 65.

On the other hand, second belt pulley 64 is connected on second gear 69 in the basket 65 via rotating freely second turning axle 68 of ground axle suspension on basket 65, simultaneously, is connected on the 3rd outer belt pulley 70 of basket 65.The 3rd belt pulley 70 is connected on the 4th belt pulley 72 via the 3rd belt 71, and the 4th belt pulley 72 is connected on first rotation detector 74 that the scrambler by increment type constitutes via the 3rd turning axle 73.Whereby, first rotation detector 74 by the rotation via the axle barrel member 46 of second belt 62 and the 3rd belt pulley 70, the 4th belt pulley 72 transitive graphs 4, detects the revolution (anglec of rotation) of axle barrel member 46, can export as angle detection signal.

In addition, second gear 69 in the basket 65 of first rotation detector, 74 rotations is engaged on first conical gear 76 via the 4th gear 75.But first conical gear 76 can be arranged on free rotary ground supporting on the shaft component on the basket 65 77 with rotating freely.On shaft component 77, fixedly install in the fixed component 78, second conical gear 79 of this fixed component 78 of clamping can be set with rotating freely.Second conical gear 79 is engaged on above-mentioned first gear 67 of rotation of screw axis member 45 of transitive graph 4.In addition, first conical gear 76 and second conical gear 79 are engaged on the planet wheel 80.Planet wheel 80 can rotate freely ground axle suspension on the side of fixed component 78.

Whereby, under the situation of axle barrel member 46 rotation of Fig. 4 under the state that first gear 67 is fixed by the stopping of screw axis member 45 of Fig. 4, second conical gear 79 that is engaged on first gear 67 also is in stationary state, so, because during rotation second gear 69 rotations of the axle barrel member 46 of Fig. 4, via first conical gear 76, planet wheel 80 is around shaft component 77 rotations, the result is shaft component 77 rotations.In addition, because under the situation of the rotation of the screw axis member 45 of Fig. 4, axle barrel member 46 rotations that first gear 67 is in Fig. 4 under the rotation status, because second conical gear 79 that is engaged on first gear 67 also rotates to same direction, so, during because of the rotation of the rotating cylinder member 46 of Fig. 4,69 rotations of second gear, first conical gear 76 rotates to certain position, the result, and shaft component 77 becomes the state that stops.

On an end of above-mentioned shaft component 77, the 5th belt pulley 81 is set.The 5th belt pulley 81 is connected on second rotation detector 84 that the scrambler by absolute type constitutes via the 4th belt 82 and the 5th belt 83.Simultaneously, 84 screw axis members 45 at Fig. 4 of second rotation detector stop, when axle barrel member 46 rotates, detect the initial point of rotating cylinder member 46, export as the initial point signal.

The rotation testing agency 60 of Gou Chenging is connected on the not shown control device as mentioned above.Control device has operational part and storage part, input and output portion etc.On storage part, form various data areas such as tire data zone and rim width zone, test figure zone.In addition, the kind of tire data area stores tire 1, the bead width of each kind wait data several times corresponding to the rotation of each kind.The rim width data area stores reaches the rim width data at the interval of wheel rim 3 down as last wheel rim 2.The inspection data that the test figure area stores obtains tire 1 rotation.

In addition, in storage part, the control program of the action of storage control tyre uniformity testing machine.This control program has following function: according to the species data of operation input and output portion input obtain tire 1 bead width, for become rim width corresponding to this bead width, make according to initial point detection signal and angle detection signal in barrel member 41 move forward into the function of road wheel rim width setup with respect to outer barrel member 42 advance and retreat; According to checking instruction by the operation of the beginning button of input and output portion etc., for become corresponding to the rotation of species data several times with the check criteria of rotating speed etc., the audit function of checking according to angle detection signal; Confirm to have or not the abnormal operation measuring ability of abnormal operation according to initial point detection signal and angle detection signal; The tire 1 that inspection is finished from wheel rim 2,3 unload when transporting, tire 1 before will checking is installed to the various functions such as transporting function that are transported on the wheel rim 2,3.

As mentioned above, the rotation testing agency 60 of output initial point signal and angle detection signal is arranged on the top frame 6 as shown in Figure 2 in control device.Substantial middle portion horizontally set intermediate stand 85 in the frame 7 of vertical setting of supporting top frame 6.On intermediate stand 85, left and right symmetrically is provided with a pair of tire mounting table 86,86.These tire mounting tables 86,86 can enlarge, dwindle at interval according to the external diameter of wheel rim 2,3, by being adjusted to the interval wideer slightly than wheel rim 2,3, and can be with tire 1 with respect to wheel rim 3 dismounting down.

In addition, on each tire mounting table 86,86 outside, tire carrying mechanism 87,87 is set respectively.Tire carrying mechanism 87 as shown in Figure 3, be equipped with two groups to comprise controlling member 88,88 and making each control the handle sturcture 90 of the wheelwork 89,89 that member 88,88 rotates to the direction of tire 1 of the fetus face of controlling tire 1 along carrying direction (horizontal direction), simultaneously, has the carrying hydraulic cylinder 91 that these handle sturctures 90,90 are moved along carrying direction advance and retreat.Allocation position with upper spindle 4 and lower spindle 5 is the center, and in the front and back of carrying direction, setting is transported into roller 92 and transports roller 93 respectively.Simultaneously, above-mentioned tire carrying mechanism 87, come in and go out by making carrying hydraulic cylinder 91, on being transported into roller 92, control tire 1 before checking with a handle sturcture 90, the tires 1 of while after being held in the inspection of locating inspection position (between the wheel rim 2,3) with 90 of another handle sturctures, by carrying hydraulic cylinder 91 is retreated, tire 1 before checking is moved to check the locational while, the tire 1 after checking is moved to transport on the roller 93.

In addition, as shown in Figure 2, be provided with in side and measure mechanism 97 as the bottom of the upper spindle 4 between intermediate stand 85 and the top frame 6.Measuring mechanism 97 comprises: the mock survey cylinder 102 on road surface, for the turning axle that makes this cylinder 102 with tire 1 (wheel rim up and down) but the idler body 99 of the parallel free rotary ground supporting cylinder 102 of rotation center, be located on the axle center of cylinder 102, measure the not shown force cell of the consistance (homogeneity) of tires 1, with the ball formula lifting jack 100 of the snap-in force hold-down roll 102 of regulation via cylinder 102.

Below, the action of the tyre uniformity testing machine in said structure is described.

(data input operation)

At first, the operation of for example keyboard by the input and output portion in the not shown control device, the species data of the tire 1 that will check below importing by the operator and incremental data etc.Species data is used for the collection with specifications such as the bead width of the corresponding tire 1 of species data of storage in advance and tire diameters.Then, whether judgement is corresponding with the rim width of last lower spindle 4,5 as the bead width of the tire 1 of checking object, if not corresponding with bead width, carry out rim width and adjusts operation.Then, when rim width is set end, carry out the inspection operation of the uniformity that carries out tire 1.

(rim width adjustment operation)

The rim width of last lower spindle 4,5 not with the corresponding situation of the bead width of tire 1 under, carry out this operation.At first, as shown in Figure 4, the position relation of outer barrel member 42 with the interior barrel member 41 of current rim width has been set in affirmation.Simultaneously, according to this position relation, obtain for be provided with next time rim width necessary in barrel member 41 amount of movement (lifting amount) afterwards, obtain the sense of rotation and the revolution of the interior barrel member 41 that becomes this amount of movement.

Secondly, move, make clutch coupling 47 be in OFF (disconnection) state, remove being connected of screw axis member 45 and axle barrel member 46, and, move and make clamping device 49 be in ON (connection) state, be held by brake disc 48, forbid the rotation of screw axis member 45.Consequently, become the state that has only axle barrel member 46 to rotate.

Secondly, make spindle drive 56 actions, make the direction rotation of axle barrel member 46 to regulation.Whereby, the outer barrel member 42 that is connected on the axle barrel member 46 rotates.In addition, owing to outer barrel member 42 can only be connected via feather key 43 along the vertical direction with interior barrel member 41 with moving freely, so interior barrel member 41 also rotates together with outer barrel member 42.Consequently, by being the center with fixing screw axis member 45, interior barrel member 41 rotates, and the 41d of the female screw portion one side of interior barrel member 41 moves along the vertical direction with the outer screw section 45a threaded engagement one side of screw axis member 45.

As mentioned above, when taking care 46 rotations of beam barrel member, this rotation passes to rotation testing agency 60 via second belt 62.Whereby, as shown in Figure 5, be connected to the 3rd belt pulley 70 rotation on second belt 62 via second belt pulley 64, be rotated, the revolution (anglec of rotation) of axle barrel member 46 is outputed in the not shown control device as angle detection signal by first rotation detector 74.

In addition, second gear 69 that is connected on second belt 62 via second belt pulley 64 also rotates, 76 rotations of first conical gear.At this moment, as mentioned above, because the screw axis member 45 of Fig. 4 is in stationary state, so, be connected to the state that first gear 67 on this screw axis member 45 and second conical gear 79 are maintained fixed via first belt 61 and first belt pulley 63.Thereby planet wheel 80 is via the result of first conical gear 76 around shaft component 77 rotations, and shaft component 77 rotates.Thereby,, the initial point detection signal is outputed to not shown control device from second rotation detector 84 via 84 rotations of the 5th belt pulley 81, the second rotation detectors.

Output to the angle detection signal and the initial point signal of control device, obtain the phase place of two signals, judge whether correctly to carry out the rim width adjustment according to the variation of this phase place.In addition, in according to initial point signal sets reference position, obtain the revolution of axle barrel member 46 at least according to angle detection signal, the amount of movement (lifting amount) of barrel member 41 in detecting based on this revolution.Simultaneously, when becoming the target amount of movement, as shown in Figure 4, by stopping of spindle drive 56, axle barrel member 46 stops the rotation.

(inspection operation)

When the rim width of the tire 1 of checking object corresponding to conduct, carry out this operation.At first, as shown in Figure 2, utilize second elevating mechanism 13 will descend the wheel rim maintaining body 11 and first elevating mechanism 12 to be set in the height of regulation together.Then, first elevating mechanism 12 is descended, make down wheel rim 3 above be positioned at the below of tire mounting table 86,86.

Secondly, as shown in Figure 3, utilize the tire 1 before handle sturcture 90 is controlled the inspection of mounting on being transported into roller 92, shift mounting on the tire mounting table 86,86 between the wheel rim 2,3 up and down.Afterwards, as shown in Figure 4, utilize first elevating mechanism 12 will descend wheel rim 3 to rise, keep the following bead part of tire 1.Simultaneously, keeping under the state of tire 1 wheel rim 3 further being risen, when being installed to the last bead part of tire 1 on the wheel rim 2, the upper spindle 4 and the lower spindle 5 of wheel rim 2,3 about the outfit coupled together.

That is, as shown in Figure 1, when the following wheel rim maintaining body 11 of lower spindle 5 rose, the leading section of following wheel rim supporting member 20 (convex connecting portion) was inserted in the concavity connecting portion of interior barrel member 41.Simultaneously, as shown in Figure 7, chuck member 51 (wedge shape sleeve) one side of intercalation to the slip lateral circle surface 20b of following wheel rim supporting member 20 is directed to one side along interior all dip plane 41b of interior barrel member 41 and is in contact with it, along with the rising of wheel rim supporting member 20 down, the whole outer peripheral face 51a of chuck member 51 is by the inside Zhou Fangxiang pushing of interior all dip plane 41b of interior barrel member 41.Thereby chuck member 51 one sides are brought into play the effect of wedge, and the adjustment in axle center was as one man carried out in the axle center of barrel member 41 and the axle center of interior barrel member 41 in one side made.

In addition, at this moment, chuck member 51 one side is by interior all dip plane 41 guiding one sides flexibly undergauge the time, is loaded mechanism 52 and loads and be positioned at the upper lateral part office.Thereby even when wheel rim supporting member 20 rises cooperation rapidly down, because the flexible undergauge action of chuck member 51 and the buffer action of load maintainer 52, chuck member 51 also is difficult to sustain damage.And then, utilize internal diameter poor of the bottom of the external diameter of upper end of chuck member 51 and the interior all dip plane 41b on the interior barrel member 41, make chuck member 51 be coupled in initial stage on the barrel member 41, produce big gap in radial direction.Thereby, even make each member with high machining precision in prior art, chuck member 51 is coupled on the interior barrel member 41, even when position adjustment capability deficiency when wheel rim maintaining body 11 is risen or above-mentioned speed are big, chuck member 51 is coupled to damage on the interior barrel member 41 reliably and not.

When utilization is equipped with the axle center adjusting mechanism 50 of chuck member 51 and loaded members 52 to implement the adjustment action of above-mentioned axle center,, utilize mechanical lock mechanism 30 to implement the fixedly action of axis direction in the inside of interior barrel member 41.That is, by the upper surface of mechanical lock mechanism 30 and contacting of the 41a of horizontally set portion, the jog 32a of claw component 32 and the jog 41a subtend of interior barrel member 41.Simultaneously, as shown in Figure 1, utilize bar lifting hydraulic cylinder 23 via bar member 24 dip member 31 to be risen, by the rising by dip member 31 claw component 32 is released to peripheral direction, the jog 32a of claw component 32 cooperates with the jog 41a of interior barrel member 41.Whereby, become and utilize mechanical lock mechanism 30 that upper spindle 4 and lower spindle 5 are fixed to the state of axis direction, that is, become the state that lower spindle 4,5 has the regulation of separating each other of going up apart from the position relation of subtend.

Secondly, as shown in Figure 4, when clamping device 49 became OFF (disconnections) state, brake disc 48 and unclamps, clutch mechanism 47 became the state of ON (connections), and axle barrel member 46 and screw axis member 45 interconnect under the state of fixing.In addition, as shown in Figure 1, to the pressurized air of tire 1 supply authorised pressure, tire 1 becomes inflated condition.

When tire 1 is in inflated condition, the reacting force of tire 1 so that up and down wheel rim 2,3 (go up lower spindle axle 4, the 5) mode of separating work.Thereby when existing the play amount of axis direction between the last lower spindle 4,5, the following wheel rim supporting member 20 of lower spindle 5 descends and is equivalent to the amount of this play, and two axles 4,5 are separated.At this moment, the chuck member of being located at down on the wheel rim supporting member 20 51 loads upward owing to being loaded member 52, so even wheel rim supporting member 20 descends down, chuck member 51 still is retained in by on the position of interior all dip plane 41b pushings of interior barrel member 41.Whereby, keep utilizing the axle center of interior all dip plane 41b pushing chuck members 51 generations to adjust function.

In addition, as shown in Figure 1, upper spindle 4 and lower spindle 5 are fixed on the axis direction by mechanical lock mechanism 30.Thereby even the reacting force of tire 1 is very big, the interval of last lower spindle 4,5 can not be separated into more than the play amount yet.In addition, axis direction fixing that is used for lower spindle 4,5 by mechanical lock mechanism 30, with only compare with the fixing situation that goes up lower spindle 4,5 of the oil hydraulic cylinder of first elevating mechanism 12, can make to push first elevating mechanism, 12 parts such as grade and the mechanism's miniaturization that lower spindle 5 makes it to rise.

Then, the pushing force with regulation is pressed to cylinder 102 on the tire 1.In addition, in this case, the pushing force to tire 1 (lateral load) of utilizing cylinder 102 generations is to press to chuck member 51 the mode effect of below, but because load maintainer 52 upwards pushes chuck member 51 with the loading force greater than pushing downwards, so, can keep adjusting function by the axle center that load maintainer 51 produces.

Secondly, as shown in Figure 4, spindle drive 56 actions are by making 46 rotations of axle barrel member, screw axis member 45 and interior barrel member 41,42 rotations of outer barrel member.The result is to comprise the following wheel rim supporting member 20 that is connected with mechanical lock mechanism 30 with axle center adjusting mechanism 50 and rotate at interior lower spindle 5.Simultaneously, as shown in Figure 2, tire 1 rotation by making cylinder 102 rotations and vibration, is measured the consistance (homogeneity) of tire.

As mentioned above, when taking care 46 rotations of beam barrel member, this rotation is delivered to rotation testing agency 60 via second belt 62.Whereby, as shown in Figure 5, the 3rd belt pulley 70 that is connected on second belt 62 via second belt pulley 64 rotates, and by 74 rotations of first rotation detector, the revolution of axle barrel member 46 (anglec of rotation) outputs to not shown control device as angle detection signal.

In addition, second gear 69 that is connected on second belt 62 via second belt pulley 64 also rotates, 76 rotations of first conical gear.At this moment, as mentioned above, because the screw axis member 45 of Fig. 4 is with 46 rotations of axle barrel member, so, become via first belt 61 and first belt pulley 63 and be connected to first gear 67 on this screw axis member 45 and second conical gear 79 and first conical gear 76 state with identical speed rotation.Thereby planet wheel 80 is accepted the same position rotation of being rotated in of first conical gear 76 and second conical gear 79, and its result becomes the state that shaft component 77 stops.Thereby, owing to remain on the state that second rotation detector 84 stops, so, not from second rotation detector, 84 output initial point detection signals.

When to control device output angle detection signal, control device is obtained the revolution of tire according to angle detection signal and is rotated several times, and specifies the position relation of uniformity value and tire 1.In addition, control device monitors the output state of initial point signal, when the initial point signal has been transfused to, as clutch mechanism 47 operators such as abnormity notifying such as generation such as grade of Fig. 4.

When tire as mentioned above 1 detects when finishing, as shown in Figure 2, carry out the action opposite with above-mentioned action, on the tire mounting table 86,86 time, will descend wheel rim 3 to separate by tire 1 mounting after the following general who has surrendered of wheel rim 3 checks down from tire 1.Simultaneously, as shown in Figure 3, control tire 1 and the tire 1 after the inspection between the wheel rim 2,3 up and down before the inspection that is transported on the roller 92 with handle sturcture 90,90 respectively, tire 1 before checking is moved mounting in up and down between the wheel rim 2,3, simultaneously, the tire 1 after checking is moved mounting in transporting on the roller 93.Simultaneously, repeat the inspection of following tire 1.

As mentioned above, the evenness tester of present embodiment as shown in Figure 1, have the rim width adjusting mechanism 58 that the bead width of the rim width of the wheel rim up and down 2,3 when lower spindle 4,5 is joined to one another and tire 1 changes accordingly, rim width adjusting mechanism 58 comprises the screw axis member 45 that rotatably is provided on the upper spindle 4 (first axle), and can be connected to lower spindle 5 (second axle) go up, by the rotation of the screw axis member 45 interior barrel member 41 on along rim width direction advance and retreat ground threaded engagement to screw axis member 45.

In addition, in the present embodiment, as shown in Figure 2, to tire 1 horizontal arrangement, the tyre uniformity testing machine checked from clamping up and down are illustrated, for convenience of description, demonstrated last lower spindle 4,5 and wheel rim 2,3 up and down, but be not limited thereto, also be applicable to tire 1 is configured in the tyre uniformity testing machine that any direction is checked.Thereby wheel rim 2,3 for example can be configured in any directions such as horizontal direction about last lower spindle 4,5 reached.In addition, in the present embodiment, for lower spindle 5 is illustrated to the situation that upper spindle 4 moves, but be not limited thereto, move as long as one of make in the lower spindle 4,5.And then axle travel mechanism also can be made of an oil hydraulic cylinder 103 as shown in Figure 8.

According to said structure, because rim width adjusting mechanism 58 is provided in the upper spindle 4, so, for example, situation during with the below that rim width adjusting mechanisms such as oil hydraulic cylinder is configured in lower spindle 5 is compared, under the situation of the axial maximization of rotation of the wheel rim up and down 2,3 of the evenness tester that can suppress tire 1, can change the width of wheel rim.Whereby, for example the turning axle direction mode consistent with vertical direction imported under the situation of evenness tester of tire 1, as shown in Figure 2, because it is superficial to be used in the trench 10 that holds lower spindle 5, so, required expense when can suppression equipment importing.In addition,, can make inner core member 41 advance and retreat and adjust the rim width of wheel rim 2,3 down if owing to make screw axis member 45 rotation, so, simple in structure.And then, because the rotation of screw axis member 45 can be adopted general detecting sensor control device, control easily, so, for example, if check on the bead width of tire 1 in advance, can at an easy rate the rim width automatic setting be become the width of this tyre bead.

In addition, rim width adjusting mechanism 58 in the present embodiment as shown in Figure 3, comprise the outer barrel member 42 of installation by last wheel rim 2, rotation drives the spindle drive 56 of outer barrel member 42, can switch the clutch mechanism that is connected and connects disarm state 47 of outer barrel member 42 and screw axis member 45.

According to said structure, switching that can be by clutch mechanism 47 is used for the adjustment purposes of rim width with spindle drive 56, and with rotating driving device 56 as making the wheel rim rotation, checking the purposes of tire 1.

And then, rim width adjusting mechanism 58 in the present embodiment as shown in Figure 1, screw axis member 45 and interior barrel member 41 are inserted in the outer barrel member 42, on the outer peripheral face of interior barrel member 41, form keyway 41e along the rim width direction, on the barrel member 42, feather key 43 is coupled on the keyway 41e with can move freely outside.Whereby, can utilize simple structure to realize making interior barrel member 41 moving along the rim width direction by the rotation of screw axis member 45.

And then the rim width adjusting mechanism 58 in the present embodiment is equipped with the brake disc 48 of the rotation that can forbid screw axis member 45 as shown in Figure 4, and clamping device 49 (arrestment mechanism).Whereby, owing to can reliably screw axis member 45 be stopped, so, rim width can correctly be adjusted.

In addition, tyre uniformity testing machine in the present embodiment comprises the rotation testing agency 60 of the rotary state, output angle detection signal and the initial point detection signal that detect outer barrel member 42 and screw axis member 45 respectively, and the control device that does not illustrate among the figure via the function that monitors operating state according to each rotary state with these signal indications.Whereby, can detect rim width when adjusting and the misoperation during tyre inspection.

Like this, according to the present invention, owing in an axle, be equipped with the rim width adjusting mechanism, so, compare with the situation that the rim width adjusting mechanism is configured in the axle outside, can suppress tyre uniformity testing machine and rotate axial maximization, and can change rim width at wheel rim.In addition, if, can make inner core member advance and retreat and the width of adjustment wheel rim owing to make the rotation of screw axis member, so, simple in structure.And then, because general detecting sensor and control device are adopted in the rotation of screw axis member, control easily, so, for example, if can have the bead width that checks on tire in advance, can be easy to rim width is set for the effect of this bead width.

In addition, the tyre uniformity testing machine of present embodiment as shown in Figure 1, comprise: the wheel rim up and down 2 that the bead part that keeps tire 1 is installed with one heart, 3 a pair of lower spindle 4 of going up, 5, each bead part of tire 1 is remained on wheel rim 2 up and down, in the time of on 3, will go up lower spindle 4,5 modes connected to one another make lower spindle 4, the axle travel mechanism that lower spindle 5 in 5 moves (first elevating mechanism 12, second elevating mechanism 13), at last lower spindle 4,5 when being connected to each other, one side utilization is gone up lower spindle 4, the effect of 5 pushing force performance wedge, one side makes the axle center axle center adjusting mechanism 50 consistent with the axle center of upper spindle 4 of lower spindle 5, and at last lower spindle 4,5 when being connected to each other, position relation engaging mutually with subtend, be created in the mechanical lock mechanism 30 of the connection power of the pressure in the antagonism tire when checking tire.

Specifically, comprise: the wheel rim up and down 2 that the bead part that keeps tire 1 is installed with one heart, 3 a pair of lower spindle 4 of going up, 5, for each bead part with tire 1 remains on wheel rim 2 up and down, in the time of on 3, the convex connecting portion of being located on the lower spindle 5 is inserted into the concavity connecting portion of being located on the upper spindle 4, to go up lower spindle 4,5 are connected to each other, the axle travel mechanism that lower spindle 5 is in axial direction moved, have at last lower spindle 4,5 when being connected to each other, the axle center adjusting mechanism 50 of the chuck member 51 (wedge shape sleeve) that produces the effect of wedge in the gap that the axle circumferential direction forms and install additional in the gap between two axles has at last lower spindle 4,5 when being connected to each other, be arranged on holding section (the jog 32a on the periphery of interior week of concavity connecting portion and convex connecting portion with the position of subtend relation, jog 41a), the mechanical lock mechanism 30 of the connection power of the interior pressure of the tire the when engaging by the holding section creates antagonism tyre inspection.

According to said structure, because adjusting mechanism 50 one side utilizations in axle center are gone up the axle center that lower spindle 4,5 is simultaneously adjusted in the effect of lower spindle 4,5 interactional pushing force performance wedges, so, can bring into play the axle center adjustment function that makes lower spindle 4,5 axle center unanimity each other when connecting with mechanical lock mechanism 30 when going up lower spindle 4,5.Whereby, for example, even owing to reason such as the machining precision of each parts and assembly precision be low, when last lower spindle 4,5 axle center each other produces skew slightly, the axle one side is simultaneously carried out the axle center adjustment by the wedge shape cage guiding, so, can not cause damage, make the axle center unanimity of lower spindle 4,5 reliably.And then, by playing a part buffering by the loading effect of the load maintainer of axle center adjusting mechanism 50 or the flexible undergauge action of axle center adjusting mechanism (chuck), so, axle 4,5 is connected with high-speed mobile.Whereby, there is no need to carry out high-precision processing and just can fully prevent the skew in axle center, and can shorten the minute cycle.

In addition, axle center adjusting mechanism 50 in the present embodiment as shown in Figure 7, comprise: intercalation slidably is to a kind of chuck member 51 as the wedge shape sleeve that the slip lateral circle surface 20b of lower spindle 5 goes up, outer peripheral face 51a tilts in the mode that reduces more the closer to upper spindle 4 external diameters, in applying with outer peripheral face 51a to chuck member 51 mode of the pushing force of Zhou Fangxiang can chimeric chuck member 15, be formed at the interior all dip plane 41b on the upper spindle 4.In addition, also can interior all dip plane 41b be arranged on the lower spindle 5 with chuck member 51 to be arranged on the upper spindle 4.In addition, axle center adjusting mechanism 50 also can replace chuck member 51, cooperates the conical sleeve as the wedge shape of the structure that does not form slit slidably.

When the wedge-shaped sleeve tube that with general chuck clamping mode is representative forms axle center adjusting mechanism 50, when all dip plane 41b go up in chuck member 51 is coupled to, because between last lower spindle 4,5, form big gap along radial direction, so, can be to carry out the connection of axle 4,5 at a high speed.In addition, because one side is simultaneously carried out the axle center adjustment along interior all dip plane 41b with the wedge shape cage guiding, so, producing big skew even go up lower spindle 4,5 axle center each other, also can reliably chuck member 51 be coupled on interior all dip plane 41b.

In addition, axle center adjusting mechanism 50 have with chuck member 51 (wedge shape sleeve) to the direction of upper spindle 4, promptly, the load maintainer 52 that loads to the direction that strengthens the wedging action that produces by chuck member 51.Whereby, even the last lower spindle 4,5 that is in connection status is because the reacting force of tire 1 etc., under the situation about leaving slightly along axis direction, because load maintainer 52 makes chuck member 51 (wedge shape sleeve) move along the direction of upper spindle 4, keep mated condition (wedging action), so, keep the pushing force of giving chuck member 51 (wedge shape sleeve).Whereby, function is adjusted in the axle center that can keep the connection initial stage.In addition, the axle center adjusting mechanism also can be equipped with the wedge shape sleeve in concavity connecting portion side slidably.In this case, be necessary the dip plane corresponding to all dip plane in the wedge shape sleeve is arranged on convex connecting portion side highlightedly.In addition, in this case, can load to the direction of the wedging action that strengthens the wedge shape sleeve.

In addition, locking mechanism 50 constitutes the holding section by the jog 32a of claw component 32 and the jog 41a of interior barrel member 41, but is not limited thereto, also can be when the holding section has the position that jog is arranged at least, by making at least one side action at this position, be engaged on the opposite side.For example, also can be engaged on the jog of subtend by the position with jog of inner core member side is inwardly moved in week side-prominently.In addition, for example, also can a plurality of claws be set in convex connecting portion side, in concavity connecting portion side the hole portion that the claw of convex connecting portion passes is set, by making the angle of one of them spinning movement regulation at least of two connecting elements, in the mode of the claw that is engaged to convex connecting portion side, utilize the anti-lock of boring of so-called trough of belt that claw also is set in the portion of the hole of concavity connecting portion to engage.

Like this, according to the present invention, because the axle center adjusting mechanism simultaneously utilizes the pushing force of the interior Zhou Fangxiang of an axle to carry out the axle center that the elasticity undergauge is simultaneously adjusted another axle, so, when utilizing locking mechanism to connect axle, can bring into play one side and play the axle center adjustment function that simultaneously makes the axle center unanimity as pooling feature.Whereby, have and to carry out high-precision processing and fully prevent the skew in axle center, shorten the effect in minute cycle simultaneously.

Claims (5)

1, a kind of tyre uniformity testing machine, by constituting with the lower part:

The wheel rim that keeps the bead part of tire;

First and second center roller of aforementioned wheel rim is installed with one heart; And

Can make the rim width adjusting mechanism that the bead width of rim width when aforementioned first and second axle is connected to each other and tire changes accordingly;

Here, aforementioned rim width adjusting mechanism is by constituting with the lower part:

Rotatably be provided in the screw axis member on aforementioned first axle; And

Can be connected on aforementioned second axle, with by the rotation of said spiral shaft component to mode threaded engagement that rim width direction advance and retreat the move interior barrel member to the said spiral shaft component.

2, tyre uniformity testing machine as claimed in claim 1, aforementioned rim width adjusting mechanism is further by constituting with the lower part:

The outer barrel member of aforementioned wheel rim is installed;

Rotation drives the spindle drive of aforementioned outer barrel member; And

Can carry out being connected and the clutch mechanism of the switching of the releasing of connection of aforementioned outer barrel member and said spiral shaft component.

3, tyre uniformity testing machine as claimed in claim 2, the said spiral shaft component and aforementioned in the barrel member interpolation outside aforementioned in the barrel member,

In aforementioned, on the outer peripheral face of barrel member, form keyway along aforementioned rim width direction,

On the barrel member, feather key is coupled in the aforementioned keyway with can move freely outside aforementioned.

4, tyre uniformity testing machine as claimed in claim 2, aforementioned rim width adjusting mechanism are equipped with the arrestment mechanism that can forbid the rotation of said spiral shaft component.

5, tyre uniformity testing machine as claimed in claim 2, further by constituting with the lower part:

The outer barrel member that detects the rotary state of aforementioned outer barrel member rotates testing agency;

Detect the screw axis member rotation testing agency of the rotary state of said spiral shaft component; And

Have according to rotary state that utilizes aforementioned outer barrel member rotation testing agency to detect and the rotary state that detects by said spiral shaft component rotation testing agency, monitor the control device of the function of operating state.

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