CN101970999A - Vibration testing device - Google Patents
Vibration testing device Download PDFInfo
- Publication number
- CN101970999A CN101970999A CN2009801087387A CN200980108738A CN101970999A CN 101970999 A CN101970999 A CN 101970999A CN 2009801087387 A CN2009801087387 A CN 2009801087387A CN 200980108738 A CN200980108738 A CN 200980108738A CN 101970999 A CN101970999 A CN 101970999A
- Authority
- CN
- China
- Prior art keywords
- testing device
- rail bar
- movable block
- vibration testing
- shakes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/04—Monodirectional test stands
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
A vibration testing device which allows to reduce a space for performing a vibration test and to vertically vibrate the bearing of a vehicle without using a vibration mechanism of large output. The vibration testing device comprises a bearing unit which rotatably supports the axle of the truck of a vehicle an axle drive mechanism which rotates the axle, a vertical vibration unit which vertically vibrates the bearing unit, an air cylinder mechanism which applies an upward load to the bearing unit, and a reaction frame which presses the truck from above.
Description
Technical field
The invention relates to the vibration testing device that makes its vibration in the compression dead weight that axletree at rail truck and trailer (trailer) etc. applies above-below direction.
Background technology
On the goods vehicle of railway and trailer etc., apply and equal vibration when travelling, the movement of the bearing of the axletree of main observation vehicle, in order to carry out the torture test of this bearing, what be used is vibration testing device as TOHKEMY 2005-274211 communique 1.
The vibration testing device that above-mentioned communique is put down in writing, be with vehicle boarded on rail bar wheel, and rotation drives the rail bar wheel and (add shake the meaning for the applying vibration) rail bar that when making the wheel rotation of vehicle, shakes by adding is taken turns the bearing that load is put on vehicle on axial direction.
Existing vibration testing device is in order to carry out vibration test under the state that car body will be at vehicle be installed on all that is chassis, is necessary to be provided with in order to test large space.In addition, because the loading of the weight/wheel number of car body is put on each rail bar wheel, making Vehicular vibration under the occasion of above-below direction, the mechanism of shaking that adds that can bear the big output of this big loading is necessary.
Summary of the invention
The present invention designs in order to address the above problem.That is, the object of the present invention is to provide a kind of vibration testing device, it can reduce in order to carrying out the space of vibration test, and need not use adding of big output to shake mechanism and can make the bearing of vehicle vibrate on above-below direction.
In order to reach above-mentioned purpose, the vibration testing device of example of the present invention has: bearing unit, rotatably support the axletree of the chassis of vehicle; Axle drives mechanism makes axletree rotate; Above-below direction adds the unit that shakes, and adds the bearing unit that shakes at above-below direction; Cylinder mechanism applies loading upwards to bearing unit; And reaction frame, from pushing chassis.
According to the vibration testing device of example of the present invention, seizing the chassis of vehicle between cylinder mechanism and the reaction frame on both sides by the arms.Therefore, by driving cylinder mechanism, just weight/compression the dead weight suitable with the wheel number of car body can be put on the bearing of the axletree of chassis.Therefore, the vibration testing device of example of the present invention there is no need to make that vehicle all vibrates, and shakes to add and can only chassis be installed on test unit.Therefore, just can reduce significantly in order to carry out the space of vibration test.In addition, because chassis is supported from the below by cylinder mechanism, it can be a kind of device with less output that above-below direction adds the unit that shakes, and the degree of this less output is to be enough to make this above-below direction to add to shake the unit can bear the degree that makes the inertia of chassis when above-below direction vibrates fully.
In addition, by bearing unit being made into structure, just can high precision reappear the state of the chassis when chassis is installed on vehicle at the wheel installation site of axletree bearing axle.
In addition, the preferably is made into bearing unit can utilize the structure of automatic aligning rolling bearing (self-aligning roller bearing) with rotatable direction bearing axle.When producing this structure, just can utilize rotatable mode be bearing in axletree mutually the direction of quadrature be applied in the axletree of big loading.
The preferably, above-below direction adds the unit by using servo motor that shakes and adds the bearing unit that shakes with propelling movement screw mechanism (feedscrew mechanism) at above-below direction.
In addition, in example of the present invention, bearing unit is fixed on the shaking platform, and above-below direction adds the unit that shakes and adds the vibrational platform at above-below direction.
In addition, the preferably, vibration testing device also has: axial direction adds the unit that shakes, and adds the vibrational platform in the axial direction of chassis; First connect mechanism can link shaking platform in the mode that axial direction is slided to add the unit that shakes with respect to above-below direction; And second connect mechanism, can link shaking platform in the mode that above-below direction slides to add the unit that shakes with respect to axial direction.According to this structure, just can not produce cross-talk and on the both sides of above-below direction axial direction, add the platform that shakes (crosstalk).
In addition, the preferably, axle drives mechanism has: driving pulley is driven by the motor rotation; Driven pulley is installed on the axletree of chassis; And endless belt, be wound in driving pulley and described driven pulley.So, owing to utilize belt mechanism to drive the structure of axletree, just can when making the chassis vibration, make the axletree rotation.Driven pulley for example is installed on the substantial middle of the axletree of chassis.
The preferably, reaction frame is by connecting at the axial direction both sides of the crossbeam of chassis and chassis and from pushing chassis, and downward loading is put on chassis.For instance, reaction frame has: roughly upright erection part; And the press section, to form in the mode of extending with two directions of the curb girder almost parallel of chassis, the lower surface of press section is connected to the crossbeam of chassis and chassis is pressed in the below in the upper end of this erection part.
In addition, first and second connect mechanism can be configured to respectively and slidably to link platform and above-below direction by linear guides mechanism (linearguide mechanism) and add shake unit and axial direction and add the unit that shakes, and this linear guides mechanism possesses: rail bar (rail); And with along this rail bar slidably mode be sticked in the movable block (runner block) of this rail bar.
In addition, the preferably, movable block has: recess, around rail bar; Groove is in recess, along the moving direction of movable block and form; Avoid the path, be formed at the inside of movable block, the moving direction two ends of link slot are to form closed path with groove; And a plurality of balls, be circulated in closed path, and when being positioned at described groove and described rail bar connect.Moreover, better person, movable block is formed with four closed paths, the ball that is configured in the groove of two closed paths among four closed paths respectively has the contact angles with respect to radially being roughly of the linear guides mechanism that has possessed rail bar and movable block ± 45 degree, is configured in the ball of the groove of two closed paths in addition respectively and has with respect to linear guides mechanism contrary and radially be roughly ± contact angles of 45 degree.
The linear guides mechanism of this structure, though its radially, contrary radially reaching apply big loading on the transverse direction, also can make movable block move along rail bar smooth-goingly.Simultaneously, owing to adding of platform and above-below direction and axial direction the unit that shakes link via this linear guides mechanism, even therefore under the occasion that adds the heavy weight chassis that shakes, platform also can be stablized, and can move at rail bar smooth-goingly.
Perhaps, movable block also can have: recess, around rail bar; A plurality of roller bearings (roller), the mode of being held under the arm between rail bar and recess with its barrel surface disposes; The roller bearing holding member is installed on recess, and formation guides the direction of principal axis two ends of roller bearing and makes the rolling groove that this roller bearing rolls in the glide direction of movable block; And avoid the path, and be formed on the inside of movable block, connect the described glide direction two ends of rolling groove, form closed path with rolling groove, a plurality of ball-recirculation are in closed path.The preferably, movable block is formed with four closed paths, and the four row roller bearings that are configured in four closed paths respectively are configured to, and it is being separated by 90 ° on face of quadrature mutually with the axle of rail bar.Better person, the diameter of roller bearing is less than described movable block in the rolling groove and the interval between the rail bar, and its difference is below 1 micron.
The linear guides mechanism of this structure even applied big loading at movable block, also can make that smooth-goingly movable block moves along rail bar.Therefore in addition, each roller bearing and rail bar and movable block are to utilize bigger contact area to connect, and the vibration that adds the unit that shakes from above-below direction and axial direction can be conveyed to platform in the mode of delayed response not.Therefore, can make platform vibrate with the upper frequency more than hundreds of Hz.
In addition, the preferably is provided with the retainer (retainer) in order to prevent that this roller bearing from contacting with each other between two roller bearings of adjacency.Better person, retainer has the cylinder concave surface that the barrel surface with roller bearing connects.
In not having the linear guides mechanism of retainer, because roller bearing is to contact with smaller area each other, so contact site has been applied in big stress.With respect to this, employed linear guides mechanism in example of the present invention, roller bearing is to contact with wider contact area with the barrel surface of retainer each other, therefore can utilize this contact and the stress ratio that will put on roller bearing keeps lessly.Therefore, compare, can suppress the breakage and the abrasion of roller bearing with the linear guides mechanism that does not have retainer.
Moreover, employed linear guides mechanism in example of the present invention, roller bearing does not directly contact each other.When roller bearing is in direct contact with one another, noise can be produced, and in example of the present invention, in the employed linear guides mechanism,, therefore this noise can be suppressed owing to disposed retainer between the roller bearing.
In addition, rail bar has a plurality of through holes of arranging along its direction of principal axis, pass bolt and be fixed in platform, above-below direction and add shake unit or axial direction and add the unit that shakes at each through hole, the installation interval of bolt be rail bar width 50～80%.The preferably, the installation interval of bolt be rail bar width 60～70%.
So, by relatively shortening the installation interval of bolt, rail bar just can be firmly fixed at platform, above-below direction and add shake unit or axial direction and add the unit that shakes under unbending situation.
Description of drawings
Fig. 1 is the vertical view of the vibration testing device of example of the present invention.
Fig. 2 is the front view of the vibration testing device of example of the present invention.
Fig. 3 is the side view of the vibration testing device of example of the present invention.
Fig. 4 is that the axial direction with the vibration testing device of example of the present invention adds the vertical view that draws after the part excision of the unit that shakes.
Fig. 5 is that the above-below direction with the vibration testing device of example of the present invention adds the front view that draws after the part excision of the unit that shakes.
Fig. 6 is in the linear guides mechanism of the vibration testing device of example of the present invention, cuts off the sectional view that movable block and rail bar draw on perpendicular to the one side of the long axis direction of rail bar.
Fig. 7 is the I-I sectional view of Fig. 6.
Fig. 8 is the stereographic map of installation constitution of rail bar that shows the linear guides mechanism of example of the present invention.
Fig. 9 is in the variation of the vibration testing device of example of the present invention, cuts off the sectional view that movable block and rail bar draw on perpendicular to the one side of the long axis direction of rail bar.
Figure 10 is the II-II sectional view of Fig. 9.
Figure 11 is the III-III sectional view of Fig. 9.
Figure 12 is the stereographic map of the roller bearing of the movable block of employed linear guides mechanism in the variation of example of the present invention.
Figure 13 is the calcspar of the vibration testing device of example of the present invention.
Embodiment
Below use accompanying drawing to describe in detail about example of the present invention.Fig. 1, Fig. 2 and Fig. 3 are respectively vertical view, front view and the side view of the chassis of this example with vibration testing device.
The vibration testing device 1 of this example is the device in order to the chassis 100 that adds the rail truck that shakes.Chassis 100 has: a pair of axletree 112, be installed on the axle box 114 (Fig. 2,3) and the chassis framework 120 at the two ends of each axletree.
Pair of beams 124 utilizes its both ends via top board 125 and base plate 126 (Fig. 2) and link.Be provided with air spring installation portion 127 on the top board 125, in the vibration testing device of commonly using, the car body of vehicle is to link with chassis 100 via air spring at this air spring installation portion 127, but in the vibration testing device of this example, then the car body of mounting vehicle not.
Keep the outside cone rolling of biserial (tapered rollerbearing) 116 (Fig. 3) in the axle box 114, axletree 112 is through bearing 116 thus and supported by axle box 114 in rotatable mode.In addition, the end of the top and curb girder 122 of axle box 114 is to link via volute spring 132 (second and third figure).That is chassis framework 120 is to be supported by axle box 114 via volute spring 132.From above explanation, can understand, see over from the top of Fig. 1, chassis 100 is to present the essentially rectangular body that is made of a pair of axletree 112 and a pair of curb girder 122, the substantial middle portion that a pair of axletree is 112, what present is that the pair of beams 124 parallel with this axletree 112 crossed over 122 of curb girders and the structure that is configured to.In addition, in Fig. 1, add the unit 30 that shakes etc. and occur in the drawings, therefore omitted the illustrating of axletree 112 on right side for above-below direction adds the unit 20 that shakes, axial direction.
As shown in Figure 3, axletree 112 is supported by bearing unit 12 on the position of wheel installation portion 112a.That is bearing unit 12 is to distribute two mode to be provided with four altogether with each axletree.Keep automatic aligning rolling bearing 12a in the bearing unit 12, and be bearing in the axletree 112 that above-below direction has applied big loading in rotatable mode.
Each bearing unit 12 is fixed on the shaking platform 14.In addition, be provided with load sensor 16 between bearing unit 12 and the shaking platform 14, can detect the size that puts on chassis 100 along the loading of above-below direction, axial direction, vehicle travel direction.
As shown in Figure 1, among four shaking platforms 14, two of one distolateral (downside among Fig. 1) of each axletree 112 are provided with the above-below direction that adds vibrational platform 14 at above-below direction and add and shake unit 20 and add the unit 30 that shakes in the axial direction that axial direction adds vibrational platform 14.Two shaking platforms of another of each axletree 112 distolateral (upside among Fig. 1) only are provided with above-below direction and add the unit 20 that shakes.
Below explanation adds the structure of the unit 30 that shakes about axial direction.Fig. 4 is the amplification plan view that the axial direction of this example adds the unit 30 that shakes.As shown in Figure 4, axial direction adds the unit 30 that shakes and has fixed frame 31, servo motor 32, ball screw 33, coupler 34, bearing portion 35 and ball nut (ball nut) 37.Coupler 34 is parts that the driving shaft 32a with servo motor 32 links to each other with ball screw 33.In addition, bearing portion 35 is fixed in bearing support plate 31b, and then rotating bearing ball screw rod 33 rotatably, and this bearing support plate 31b is welded into from the top panel 31a of fixed frame and extends at above-below direction.Ball nut 37 is when fastening with ball screw 33, and acquisition is supported and can't be moved around its axle.Therefore, when driving servo motor 32, ball screw 33 rotations, ball nut 37 is gone up advance and retreat at its direction of principal axis (that is axial direction).The motion of this ball nut 37 by being communicated to shaking platform 14 via the connect mechanism that is made of rail bar 44 and movable block 46, and drives shaking platform 14 in axial direction.Simultaneously, under the short period, to switch the mode of the sense of rotation of servo motor 32, just can make shaking platform 14 on axial direction, vibrate by control servo motor 32 with desired amplitude and cycle.
Above the top panel 31a of fixed frame 31, welding the rotor bearing cock 31c that extends above-below direction.Rotor bearing cock 31c is arranged to roughly little vertical with the direction of principal axis of servo motor 32, and wherein one side (with respect to shaking platform 14 face far away) goes up and supporting servo motor 32 with cantilevered fashion.Rotor bearing cock 31c is provided with peristome 31d, and the driving shaft 32a of servo motor 32 connects this peristome 31d, and is connected at another side side and the ball screw 33 of rotor bearing cock 31c.
In addition, because servo motor 32 supported with cantilevered fashion by rotor bearing cock 31c, so rotor bearing cock 31c particularly can be applied in big bending stress on the weld part of itself and top panel 31a.In order to relax this bending stress, be provided with timber 31e by top panel 31a and the formed corner of rotor bearing cock 31c.
Bearing portion 35 has with positive combination combined a pair of angular ball bearing 35a, 35b.Angular ball bearing 35a, 35b are incorporated among the hollow bulb of bearing support plate 31b.The one side of angular ball bearing 35b (face nearer with respect to shaking platform 14) is provided with bearing pressing plate 35c, by using bolt that this bearing pressing plate 35c is lock onto bearing support plate 31b, angular ball bearing 35b can be pressed into towards the direction of servo motor 32.In addition, in ball screw 33, on barrel surface, be formed with threaded shank 33a, be formed with the axle collar (collar) 35d of female screw thread in being installed with on this threaded shank 33a on week near coupler 34 sides.By making axle collar 35d rotate it is moved in the direction of leaving from coupler 34, just angular ball bearing 35a can be pressed into towards the direction of ball nut 37 with respect to ball screw 33.So, because angular ball bearing 35a, 35b be by being pressed into to direction near each other, so both are close to mutually and suitable preload are paid bearing 35a, 35b.
Secondly, illustrate about shaking platform 14 and axial direction being added the structure of the linking part 40 that the unit 30 that shakes is connected.The a pair of movable block 46 that linking part 40 has nut guide rail (nut guide) 42, a pair of rail bar 44 and is installed in each rail bar 44.
The rail bar 44 of linking part 40 extends at above-below direction, and movable block 46 can move at above-below direction along this rail bar 44.Simultaneously, movable block 46 is fixed in shaking platform 14.Therefore, when shaking platform 14 shakes unit 20 when above-below direction moves because of above-below direction described later adds, because movable block 46 slides along rail bar 44, therefore axial direction adds the loading that the unit 30 that shakes can not be applied in above-below direction, and the bending stress of loading of this above-below direction of resulting from can not be applied in ball screw 33 yet.On the other hand, can utilize the driving of ball screw 33 to make nut guide rail 42 advance and retreat, this displacement meeting is sent to shaking platform 14 via rail bar 44 and movable block 46.So, according to the structure of this example,, also can add the unit 30 that shakes and make shaking platform 14 have the vibration of cross-talk ground in axial direction by axial direction even under the state of shaking platform 14 in above-below direction vibration.
In addition, will rail bar 44 that above-below direction extends and therewith the movable block that fastens of rail bar 44 add and shake between the unit 20 to be arranged at shaking platform 14 and above-below direction as shown in Figure 1, can make thus that just shaking platform 14 moves smooth-goingly on above-below direction.
On the 43a of one of them side of movable block installing plate 43 (right side among Fig. 4), dispose position detecting mechanism 39.Position detecting mechanism 39 has: from servo motor 32 on the direction of shaking platform 14 at certain intervals side by side three proximity transducer 39a, be located at the detection of side 43a of movable block installing plate 43 with the sensor support plate 39c of plate 39b and supporting proximity transducer 39a.Proximity transducer 39a can detect whether the assembly of any object near (for example 1 millimeter in) is arranged before each proximity transducer.Because the side 43a of movable block installing plate 43 separates each other fully with proximity transducer 39a, so whether proximity transducer 39a has any detection plate 39b before can detecting each proximity transducer 39a.Vibration testing device 1 do not illustrate that control gear can use such as the testing result of proximity transducer 39a and feedback control servo motor 32.
In addition, be provided with confinement block 47 on the top panel 31a of fixed frame 31, it is configured to and can seizes movable block installing plate 43 on both sides by the arms from the advance and retreat direction both sides of nut guide rail 42.This confinement block 47 is the things in order to the moving range of restriction nut guide rail 42.That is, when driving servo motor 32 so that nut guide rail 42 continues when mobile towards shaking platform 14, at last, the confinement block 47 than nearside that is configured in respect to shaking platform 14 can contact with movable block installing plate 43, and nut guide rail 42 just can't move on the direction of shaking platform 14 afterwards.Making nut guide rail 42 continue under the mobile occasion also same towards the direction of leaving from shaking platform 14, the confinement block 47 than the distally that is configured in respect to shaking platform 14 can contact with movable block installing plate 43, and nut guide rail 42 just can't move towards the direction of leaving from shaking platform 14 afterwards.
Secondly, the structure that adds the unit 20 that shakes about the above-below direction that drives shaking platform 14 on above-below direction is described.Fig. 5 is the front view after the above-below direction with this example adds the part excision of the unit 20 that shakes.In addition, in order to show the driving mechanism of shaking platform 14 clearly, in Fig. 5, omitted cylinder 72 described later (Fig. 1,2).
As shown in Figure 5, above-below direction adds the unit 20 that shakes and has: fixed frame 21, servo motor 22, ball screw 23, coupler 24, bearing portion 25 and ball nut 27.Fixed frame 21 has: be fixed in the device base material that does not illustrate base plate 21a, be welded into a plurality of beam 21b that extend at above-below direction from base plate 21a and be welded in beam 21b to cover the top panel 21c on this beam 21b.In addition, be fixed in via the bolt that does not illustrate on the top board 21c in order to the bearing support plate 21d that bearing portion 25 is installed.
Below the bearing support plate 21d, fixing the rotor bearing cock 21f that on general horizontal direction, expands via two web 21e.Below the rotor bearing cock 21f, hanging and fixing servo motor 22.Rotor bearing cock 21f is provided with peristome 21g, and the driving shaft 22a of servo motor 22 connects this peristome 21g, utilizes the upper face side of rotor bearing cock 21f and is connected with ball screw 23.
Secondly, illustrate about the structure of binding ball nut 27 with the linking part 60 of shaking platform 14.The a pair of rail bar 64 that linking part 60 has movable framework 62, extend in axial direction and can be along this rail bar 64 and the movable block 66 that moves.
Movable framework 62 has: be fixed in ball nut 27 the 62a of frame portion, be fixed in the 62a of frame portion the upper end top board 62b and be fixed to the sidewall 62c that extends from curb girder 122 directions (left and right directions the figure) two edge of top board 62b downwards.A pair of rail bar 64 is fixed in curb girder 122 directions arranged side by side on the top board 62b of movable framework 62.In addition, the movable block 66 that fastens with rail bar 64 be fixed in platform 14 below.Therefore, when shaking platform 14 shakes unit 30 on axial direction when mobile because of axial direction adds, owing to movable block 66 slides along rail bar 64, therefore above-below direction adds the loading that can not be applied in axial direction on the unit 20 that shakes, and the bending stress of loading of this axial direction of resulting from can not be applied in ball screw 23 yet.On the other hand, can utilize the driving of ball screw 23 and make ball nut 27 and movable framework 62 advance and retreat, its displacement meeting is conveyed to shaking platform 14 via rail bar 64 and movable block 66.So, according to the structure of this example, even at shaking platform 14 under the state that vibrates on the bearing direction, also can utilize above-below direction to add to shake unit 20 and make shaking platform 14 on above-below direction, vibrate and do not produce cross-talk.
In addition, in this example, as shown in Figure 1, be provided with two, amount to four movable blocks 66 with respect to every rail bar 64.Owing to be applied in the shaking platform 14 of bigger weight and the weight of chassis, so the quantity of movable block 66 is made as four on the movable framework 62, makes can not be applied in excessive loading on each movable block 66.
Secondly, illustrate about in order to support the structure of movable framework 62.On the sidewall 62c of movable framework 62, fixing each a pair of (Fig. 1 and Fig. 5) rail bar 54.This rail bar 54 is the rail bars that extend at above-below direction.As shown in Figure 5, this rail bar 54 fastens with movable block 56, and can slide on above-below direction along rail bar 54.Movable block 56 is fixed on the top board 21b of fixed frame 21 via movable block installing component 65.Movable block installing component 65 has and the side plate 65a of the sidewall 62c almost parallel of movable framework 62 and the base plate 65b that is fixed in the lower end of this side plate 65a, and it all presents L word section shape.In addition, in this example, particularly when center of gravity is higher and heavy weight workpiece were fixed on the shaking platform 14, the big moment of the rotating shaft of Yan Shening in the horizontal direction can put on the movable framework 62 easily.Movable block installing component 65 must utilize timber to come reinforcement in order to bear this rotating torque.Specifically, the corner that the side plate 65a of the two ends of movable block installing component 65 (with reference to Fig. 3 and Fig. 5) and base plate 65b are constituted is provided with a pair of first timber 65c, moreover, also be provided with and be set up in this second timber 65d between the first timber 65c.
So, movable block 56 is fixed with respect to fixed frame 21, and can slide on above-below direction with respect to the rail bar 64 that is fixed in movable framework 62.Therefore, movable framework 62 at above-below direction slidably simultaneously, movable framework 62 moving beyond above-below direction then is restricted.So, because the moving direction of movable framework 62 only is restricted to above-below direction, therefore make when driving servo motor 22 when ball screw 23 rotates, movable framework 62 and via rail bar 64 and movable block 66 and therewith movably the shaking platform 14 that is connected of framework 62 just can on above-below direction, advance and retreat.
In addition, adding the identical position detecting mechanism (not illustrating) of the position detecting mechanism 39 (Fig. 4) of the unit 30 that shakes with axial direction also is located at above-below direction and adds the unit 20 that shakes.The control gear that does not illustrate of vibration testing device 1 can be based on the testing result of this position detecting mechanism and the height of movable framework 62 is controlled in the predetermined scope.
As mentioned above, in this example, above-below direction adds the unit 20 of shaking and adds the unit 30 that shakes with axial direction and can side by side add vibrational platform 14 and neither generation cross-talk.Therefore, the vibration of the complexity of being synthesized by the vibration of axial direction and above-below direction can be given and chassis 100.
Secondly, use accompanying drawing to describe linear guides mechanism in detail about being constituted by rail bar 44 and movable block 46 in this example.In addition, rail bar 34 with movable block 36, rail bar 54 with movable block 56 and rail bar 64 with movable block 66 also is and rail bar 44 and movable block 46 identical construction.
Fig. 6 goes up in the one side (being surface level) perpendicular to the long axis direction of rail bar 44 to cut off the sectional view that movable block 46 and rail bar 44 show, Fig. 7 is the I-I sectional view of Fig. 4.As Figure 6 and Figure 7, movable block 46 is formed with recess to center on rail bar 44, and this recess is formed with axial four groove 46a, the 46a ' that extend rail bar 44.This groove 46a, 46a ' have taken in the ball 46b of many stainless steels.Rail bar 44 is respectively equipped with groove 44a, 44a ' on the position relative with groove 46a, the 46a ' of movable block 46, ball 46b is seized on both sides by the arms between groove 46a and groove 44a or groove 46a ' and groove 44a '.The section shape of groove 46a, 46a ', 44a, 44a ' is circular-arc, and the radius of its radius-of-curvature and ball 46b about equally.Therefore, ball 46b is close to groove 46a, 46a ', 44a, 44a ' under the state that does not almost have the space.
The inside of movable block 46 is provided with four balls of each groove 46a almost parallel and avoids path 46c, 46c '.As shown in Figure 7, groove 46a utilizes two ends separately to be connected via U word road 46d with avoiding path 46c, by groove 46a, groove 44a, avoid path 46c, and U word road 46d to form with so that ball 46b round-robin circulation road.
Therefore, when movable block 46 moved with respect to rail bar 44, many ball 46b groove 46a, 46a ', 44a, 44a ' can be circulated in the circulation road when rolling.Therefore, even on the direction beyond the rail bar direction of principal axis, apply big loading, owing to utilizing many balls can also keep the axial resistance of rail bar less by the rolling of ball 46b in the support movable piece, therefore can make movable block 46 move smooth-goingly with respect to rail bar 44.In addition, it is also bigger slightly than the diameter of ball 46b to avoid the internal diameter of path 46c and U word road 46d.Therefore, it is minimum to avoid the friction force that produced between path 46c and U word road 46d and the ball 46b, so can not hamper the circulation of ball 46b.
As shown, formed contact angle in the row of the two row ball 46b of groove 46a and 44a and roughly be by seizing on both sides by the arms ± angular ball bearing of the 45 positive combination types of spending.Contact angle under so-called this occasion is meant the angle that contacted each contact point of groove 46a and 44a and ball 46b connecting line each other is with respect to radially (from the direction of movable block towards rail bar, the following direction of Fig. 6) of linear guides mechanism.Thus formed angular ball bearing can support the contrary radially loading of (from the direction of rail bar towards movable block, the last direction of Fig. 6) and transverse direction (with all vertical direction of two sides of the advance and retreat direction that radially reaches movable block, the left and right directions of Fig. 6).
Similarly, formed contact angle (connecting line of groove 46a ' and 44a ' and contacted each contact point of ball 46b is with respect to the contrary angle that radially is of linear guides mechanism) in the row of the two row ball 46b of groove 46a ' and 44a ' and roughly be by seizing on both sides by the arms ± angular ball bearing of the positive combination types of 45 degree.This angular ball bearing can support the loading that radially reaches transverse direction.
In addition, the row of two row ball 46b of seizing the side (on the left of among the figure) of a side in groove 46a and 44a (left side among the figure) and groove 46a ' and 44a ' respectively on both sides by the arms have also formed the angular ball bearing of positive combination type.Similarly, the row of two row ball 46b of seizing the opposing party (right side among the figure) of the opposing party (right side among the figure) in groove 46a and 44a and groove 46a ' and 44a ' respectively on both sides by the arms have also formed the angular ball bearing of positive combination type.
So, in this example, for act on respectively radially, contrary radially, the loading of transverse direction, the supporting of the angular ball bearing of the positive combination type by having many ball 46b just can be supported the big loading that puts on the direction beyond the rail bar direction of principal axis fully.
Secondly, the installation constitution of the rail bar of the linear guides mechanism that adopts about this example is described.Fig. 8 is the stereographic map that shows the rail bar 44 that is installed on nut guide rail 42.In addition, the installation constitution of this rail bar is identical at another rail bar of the vibration testing device of this example with use.
As shown in Figure 8, be formed with on the nut guide rail 42 with rail bar 44 roughly with the groove 42a of width, rail bar 44 is embedded into this groove 42a.Be formed with a plurality of through hole 44b that dispose side by side at its direction of principal axis on the rail bar 44.In addition, though not shown among the figure, the end of groove 42a with the corresponding position of through hole 44b on be formed with a plurality of bolts hole.Bolt 44c is passed through through hole 44b, and make rail bar 44 be fixed in nut guide rail 42 by the bolt hole that it is screwed into nut guide rail 42.
In this example, the interval of the through hole 44b of rail bar 44 (and top board bolt hole spacing) s be rail bar 44 width w 50～80%, be preferably relatively shorter by 60～70%.So, be set as shortlyer by the installation interval with bolt 44c, rail bar 44 just can be fixed in nut guide rail 42 with not being bent strongly.
In the linear guides mechanism of discussed above example, though be to utilize the rolling of ball 46b to make sliding shoe 46 slide with respect to rail bar 44, example of the present invention is not limited to above-mentioned structure.Variation also can be used linear guides mechanism as described below, wherein replaces ball 46b with roller bearing 246b, and the rolling by this roller bearing 246b makes sliding shoe 246 slide with respect to rail bar 244.
The variation of example of the present invention is represented by Fig. 9 to Figure 12.Fig. 9 cuts off the sectional view that movable block 246 and rail bar 244 draw on perpendicular to the one side of the long axis direction of rail bar 244.Figure 10 and Figure 11 are respectively II-II sectional view and the III-III sectional views of Fig. 9.As shown in Figure 9, be formed with recess 246e on the movable block 246 around rail bar 244.Held under the arm into roller bearing holding member 246f between the outer peripheral face of this recess 246e and rail bar 244.By this roller bearing holding member 246f, can be formed on four rolling groove 246a, 246a ' that direction of principal axis extends in the gap between the outer peripheral face of recess 246e and rail bar 244.Take in the roller bearing 246b of many stainless steels among this rolling groove 246a, the 246a '.About roller bearing 246b, its direction of principal axis two ends are kept by roller bearing holding member 246f, and barrel surface is connected to the recess 246e of movable block 246 and the outer peripheral face both sides of rail bar 244 simultaneously.The interval of the recess 246e of movable block 246 and the outer peripheral face of rail bar 244 and the diameter of roller bearing 246b about equally, roller bearing 246b is close to the recess 246e of movable block 246 and the outer peripheral face of rail bar 244 under the state that does not almost have the space.
The inside of movable block 246 is provided with two rail bars with each rolling groove 246a almost parallel and avoids path 246c '.As shown in figure 10, rail bar is avoided pipe flexing that path 246c ' will accommodate roller bearing 246b and is become the C word shape and form.Rolling groove 246a with avoid path 246c ' and be connected with separately two ends, form with so that roller bearing 246b round-robin circulation road.In addition, as shown in figure 11, the inside of movable block 246 is provided with two rail bars with each rolling groove 246a ' almost parallel and avoids path 246c, avoids path 246c and rolling groove 246a ' and also forms same circulation road once more.
Therefore, when movable block 246 moved with respect to rail bar 244, many roller bearing 246b can be circulated in the circulation road when rolling groove 246a, 246a ' roll.Therefore, even on the direction beyond the rail bar direction of principal axis, apply big loading, since utilize many roller bearing 246b can support movable piece 246 in roller bearing 246b can also roll, so keep the axial resistance of rail bar less, therefore can make movable block 246 move smooth-goingly with respect to rail bar 244.
In this variation, the interval d (Figure 10, Figure 11) of the recess 246e of movable block 246 and the outer peripheral face of rail bar 244 only presents than the diameter of the roller bearing 246b length of (below 1 micron) big degree slightly.In this state, movable block 246 and rail bar 244 have been applied in the preload from roller bearing 246b, and present roller bearing 246b outer peripheral face be close to the state of the outer peripheral face of the recess 246e of movable block 246 and rail bar 244.Simultaneously, the loading of the direction beyond the direction of principal axis of rail bar 244 puts under a side the occasion of movable block 246 and rail bar 244, and its loading is conveyed to the opposing party via roller bearing 246b in the mode that answering delay can take place hardly.Therefore, add shake unit 20 and axial direction and add the unit 30 that shakes even back and forth drive above-below direction with the high-frequency of hundreds of Hz degree, its vibration also can positively be conveyed to shaking platform 14 via belly board.That is, according to the vibration testing device 1 of this example, can utilize high-frequency to make shaking platform 14 vibrate.
As shown in Figure 9, about being disposed at the four row roller bearing 246b of four rolling groove 246a, 246a ', its with the face of the axle orthogonal of rail bar 244 on be configured to apart 90 °.
Because each roller bearing 246b so disposes, so applying under the occasion of the loading of the direction of movable block 246 above rail bar 244 (Fig. 9 from the top down direction), this loading is mainly born by the two row roller bearing 246b that are configured in two rolling groove 246a.In addition, on movable block 246, applied above rail bar 244 away from the occasion of loading of direction (Fig. 9 from bottom to top direction) under, this loading is mainly born by the two row roller bearing 246b that are configured in two rolling groove 246a '.
In addition, applied side from one side (left side the figure) on movable block 246 under the occasion of the loading of the opposing party's side (right side among the figure) direction, this loading is mainly born by two row roller bearing 246b of the movable block one side's side that is configured in rolling groove 246a ' and 246a (left side among the figure).On the other hand, applying side from its opposing party on the movable block 246 under the occasion of the loading of a side side surface direction, this loading is mainly born by two row roller bearing 246b of the movable block the opposing party side (right side among the figure) that is configured in rolling groove 246a ' and 246a.
Moreover, applying on the movable block 246 under the occasion of reversing loading around rail bar 244 axial, if this direction of reversing loading be among Fig. 9 clockwise, its loading is mainly born by the roller bearing 246b of the movable block the opposing party side (right side among the figure) that is configured in rolling groove 246a and the roller bearing 246b that is configured in movable block one side's side (left side among the figure) of rolling groove 246a '.If the direction of reversing loading is the counterclockwise among Fig. 9, its loading is mainly born by the roller bearing 246b of the movable block one side's side that is configured in rolling groove 246a and the roller bearing 246b that is configured in movable block the opposing party side of rolling groove 246a '.
So, in this variation, even applied on movable block 246 under wherein arbitrary occasion of loading of the above-below direction among Fig. 9, left and right directions, torsional direction, these loadings are also always born by two row roller bearing 246b.Therefore, the linear guides mechanism of this variation, even on these directions, applied big loading, the roller bearing 246b that specific row are also only arranged is applied in loading and is unlikely to cause the breakage of roller bearing 246b, and can rotate, movable block 246 just can utilize roller bearing 246b to move along rail bar 244 smooth-goingly smooth-goingly.
Figure 12 represents the stereographic map of the roller bearing 246b of movable block 246.As shown in figure 12, between each roller bearing of the vibration testing device 1 employed movable block of this example, be provided with retainer 246g.Retainer 246g has two barrel surface that the outer peripheral face with two roller bearing 246b of adjacency connects, and retainer 246g is through barrel surface thus and contact with roller bearing 246b.The axle of two barrel surface of retainer 246g is parallel to each other.Simultaneously, because retainer 246g contacts with roller bearing 246b before and after utilizing it, it is all parallel that the roller bearing 246b in the road of therefore circulating is aligned to its direction of principal axis.Therefore, roller bearing 246b just can be circulated in the circulation road not interruptedlyly and smooth-goingly.
In addition, in not having the linear guides mechanism of retainer 246g,, so can be applied in big stress on the contact site owing to each roller bearing 246b contacts with smaller contact area each other.With respect to this, the linear guides mechanism of this variation, roller bearing 246b contacts with the contact area of broad each other with the barrel surface of retainer 246g, and the stress that puts on roller bearing 246b because of this contact is held less.Therefore, the person compares with not having the retainer in the linear guides mechanism of this variation, can suppress breakage and the abrasion of roller bearing 246b.
Moreover in the employed linear guides of the variation of this example mechanism, each roller bearing 246b is not directly contact each other.Though each roller bearing 246b can produce noise when being in direct contact with one another, in this example,, therefore can suppress this noise owing to dispose retainer 246g between the roller bearing 246b.
The vibration testing device 1 of this example can utilize cylinder mechanism 70 (the first～three figure) that the dead weight that makes progress is put on each shaking platform 14.In addition, the crossbeam 124 of chassis 100 by reaction frame 80 (Fig. 2) from pushing.That is, chassis 100 presents the state of being seized on both sides by the arms from above-below direction by reaction frame 80 and cylinder mechanism 70, when applying loading upwards on shaking platform 14 when making cylinder mechanism 70 effects, is applied in chassis 100 from reaction frame 80 downward loading meetings.In addition, because from supporting down, the weight that therefore the downward loading of chassis 100 and chassis 100 itself can not take place to be applied in from reaction frame 80 are applied in the situation that above-below direction adds nut 27, ball screw 23 and the servo motor 22 of the unit 20 that shakes to chassis 100 by cylinder mechanism 70.Therefore, the torque of servo motor 22 is very big degree with respect to the inertia that vibration caused of the above-below direction of chassis 100.That is, the torque of servo motor 22 torque that can add the servo motor 32 of the unit 30 that shakes with axial direction is same degree.
Shown in Fig. 1～3, the reaction frame 80 of this example is on the device frame 11 that is configured in curb girder 122 direction substantial middle bottoms and upright beam.The upper end of reaction frame 80 is formed with the press section 81 of extending in curb girder 122 direction both sides branches, and reaction frame 80 integral body present the T word shape.Be connected to pair of beams 124 below this press section 81 and with it from pushing.In addition, shown in Fig. 1,3, reaction frame 80 is located at one on every limit, axial direction both sides of crossbeam 124, and chassis 100 promptly amounts to four places in the axial direction both sides of each crossbeam 124 and pushed by reaction frame 80.
In this example,, can also add the chassis 100 that shakes in axletree 112 rotations of chassis 100 utilizing axle drives mechanism 90 to make for the movement of the chassis of wanting to reappear the rail truck in travelling.Below explanation is about the structure of axle drives mechanism 90.
Axle drives mechanism 90 has servo motor 92 and the first～the four-tape wheel 93～96.First belt wheel 93 is fixed in the driving shaft of servo motor 92, by driving that servo motor 92 rotates.Four-tape wheel 96 is installed in the substantial middle portion of axletree 112.Second and third belt wheel 94,95 be configured in servo motor 92 directly over and take turns 96 roughly the same height (Fig. 3) with the four-tape.Shown in the first～three figure, second belt wheel 94 and the 3rd belt wheel 95 are fixed in common axis of rotation 91, rotate in the mode that becomes one.In addition, the bearing of supporting rotating shaft 91 and servo motor 92 jointly are fixed on the device frame 11.
As shown in Figure 3, be wound first endless belt 97 on first belt wheel 93 and second belt wheel 94.Similarly, be wound second endless belt 98 on the 3rd belt wheel 95 and the four-tape wheel 96.Therefore, when driving servo motor 92, rotatablely moving of its driving shaft reaches second belt wheel, 94, the second belt wheels 94 and 95 rotations of the 3rd belt wheel via first endless belt 97 from first belt wheel 93.Simultaneously, rotatablely moving of the 3rd belt wheel 95 is conveyed to four-tape wheel 96 via second endless belt 98, and axletree 112 rotates therefrom.So, in the structure of this example,, just can make axletree 112 rotate via by first and second belt wheel 93,94 and first endless belt 97 and by the 3rd and two groups of pulley mechanism being constituted of four-tape wheel 95,96 and second endless belt 98.So, because the structure of utilizing pulley mechanism to make axletree 112 rotations, what can produce displacement at above-below direction and axial direction with respect to other belt wheel 93～95 even four-tape wheel 96 because add shakes, and also do not have second belt 98 with respect to the 3rd and four-tape wheel 95,96 and lax situation.Therefore, the vibration testing device 1 of this example can also make chassis 100 vibrate on above-below direction and axial direction when making that axletree 112 rotates.
Secondly, the control about the vibration testing device 1 of this example is described.Figure 13 is the calcspar of the vibration testing device 1 of this example.As shown in figure 13, vibration testing device 1 has controller 2, power supply 3 and servoamplifier 4.Servoamplifier 4 is accepted the supply of electric power from power supply 3 and is produced the alternating current of three-phase, and it is supplied to servo motor 22,32 and 92.Controller 2 is controlled servoamplifiers 4, can adjust the amplitude and the frequency of the alternating current that is supplied to each servo motor 22,32 and 92.Thus, each servo motor 22,32 of may command and 92 rotating speed.
In addition, controller 2 can be based on the testing result of the acceleration transducer 18 of being located at shaking platform 14 (Fig. 2), and displacement, speed, the acceleration amplitude of feedback control shaking platform 14.In addition, for replacing acceleration transducer 18, also can use other sensor to detect displacement and speed.
As mentioned above, the loading of cylinder 72 lifting shaking platforms 14 is detected by load sensor 16, and controller 2 is based on the testing result of load sensor 16, utilizes feedback control and adjusts the aperture of being located at the valve 76 (Fig. 1, Fig. 3) between air tank 74 and the cylinder 72.Feedback control thus just can put on the dead weight that is equivalent to the loading of vehicle chassis 100.
Claims (20)
1. vibration testing device adds this chassis that shakes when the chassis of vehicle is applied the compression dead weight of above-below direction, it is characterized in that having:
Bearing unit rotatably supports the axletree of described chassis;
Axle drives mechanism makes described axletree rotation;
Above-below direction adds the unit that shakes, and adds the described bearing unit that shakes at above-below direction;
Cylinder mechanism applies loading upwards to described bearing unit; And
Reaction frame from pushing described chassis, makes described chassis be seized on both sides by the arms between this reaction frame and described cylinder mechanism at above-below direction.
2. vibration testing device as claimed in claim 1 is characterized in that, described bearing unit supports this axletree in the wheel installation site of described axletree.
3. vibration testing device as claimed in claim 1 is characterized in that described bearing unit utilizes the automatic aligning rolling bearing and rotatably supports described axletree.
4. as each described vibration testing device in the claim 1 to 3, it is characterized in that described above-below direction adds the unit by using servo motor that shakes and adds the described bearing unit that shakes with the propelling movement screw mechanism at above-below direction.
5. vibration testing device as claimed in claim 1 is characterized in that,
Described bearing unit is fixed on the shaking platform;
Described above-below direction adds the unit that shakes and adds the described shaking platform that shakes at above-below direction.
6. vibration testing device as claimed in claim 5 is characterized in that,
Also have:
Axial direction adds the unit that shakes, and adds the described shaking platform that shakes in the axial direction of described chassis;
First connect mechanism can link described shaking platform in the mode that described axial direction is slided to add the unit that shakes with respect to described above-below direction; And
Second connect mechanism can link described shaking platform in the mode that above-below direction slides to add the unit that shakes with respect to described axial direction.
7. vibration testing device as claimed in claim 1 is characterized in that,
Described axle drives mechanism has:
Driving pulley is driven by the motor rotation;
Driven pulley is installed on the axletree of described chassis; And
Endless belt is wound in described driving pulley and described driven pulley.
8. vibration testing device as claimed in claim 7 is characterized in that described driven pulley is installed on the substantial middle of the axletree of described chassis.
9. vibration testing device as claimed in claim 1 is characterized in that, described reaction frame connects and from pushing this chassis at the axial direction both sides of the crossbeam of described chassis and this chassis.
10. vibration testing device as claimed in claim 1 is characterized in that:
Described reaction frame has:
Roughly upright erection part; And
The press section, in the upper end of this erection part to form in the mode of extending with two directions of the curb girder almost parallel of described chassis;
The lower surface of described press section is connected to the crossbeam of described chassis and this chassis is pressed in the below.
11. vibration testing device as claimed in claim 6 is characterized in that:
Described first and second connect mechanisms have linear guides mechanism respectively, and this linear guides mechanism slidably links described platform and described above-below direction and adds shake unit and axial direction and add the unit that shakes,
Described linear guides mechanism possesses:
Rail bar; And
Can be sticked in the movable block of this rail bar along the mode that this rail bar slides.
12. vibration testing device as claimed in claim 11 is characterized in that:
Described movable block has:
Recess is around described rail bar;
Groove is formed on described recess along the moving direction of described movable block;
Avoid the path, be formed at the inside of described movable block, the described moving direction two ends that connect described groove are to form closed path with described groove; And
A plurality of balls are circulated in described closed path, when being positioned at described groove and described rail bar connect.
13. vibration testing device as claimed in claim 12 is characterized in that:
Described movable block is formed with four described closed paths;
The ball that is configured in the groove of two closed paths among described four closed paths respectively has the contact angles with respect to radially being roughly of the linear guides mechanism that has possessed described rail bar and described movable block ± 45 degree, is configured in the ball of the groove of two closed paths in addition respectively and has with respect to described linear guides mechanism contrary and radially being roughly ± contact angles of 45 degree.
14. vibration testing device as claimed in claim 11 is characterized in that:
Described movable block has:
Recess is around described rail bar;
A plurality of roller bearings, the mode of being held under the arm between described rail bar and described recess with its barrel surface disposes;
The roller bearing holding member is installed on described recess, forms rolling groove, and this rolling groove guides the direction of principal axis two ends of described roller bearing and makes this roller bearing roll in the glide direction of described movable block; And
Avoid the path, be formed on the inside of described movable block, the described glide direction two ends that connect described rolling groove with, form closed path with described rolling groove,
Described a plurality of ball-recirculation is in described closed path.
15. vibration testing device as claimed in claim 14 is characterized in that:
Described movable block is formed with four described closed paths;
The four row roller bearings that are configured in described four closed paths respectively are configured to, its with described rail bar the axle quadrature face on be separated by 90 °.
16. vibration testing device as claimed in claim 14 is characterized in that, the diameter of described roller bearing is less than described movable block in the described rolling groove and the interval between the described rail bar, and its difference is below 1 micron.
17. vibration testing device as claimed in claim 14 is characterized in that, is provided with the retainer in order to prevent that this roller bearing from contacting with each other between two roller bearings of adjacency.
18. vibration testing device as claimed in claim 17 is characterized in that, described retainer has the cylinder concave surface that the barrel surface with described roller bearing connects.
19. vibration testing device as claimed in claim 11 is characterized in that:
Described rail bar has a plurality of through holes of arranging along its direction of principal axis, and pass bolt and be fixed in described platform, described above-below direction and add shake unit or described axial direction and add the unit that shakes at each described through hole,
The installation interval of described bolt be described rail bar width 50～80%.
20. vibration testing device as claimed in claim 19 is characterized in that, the installation interval of described bolt be described rail bar width 60～70%.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008136128 | 2008-05-24 | ||
| JP2008-136128 | 2008-05-24 | ||
| PCT/JP2009/054615 WO2009144989A1 (en) | 2008-05-24 | 2009-03-11 | Vibration testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101970999A true CN101970999A (en) | 2011-02-09 |
| CN101970999B CN101970999B (en) | 2014-05-21 |
Family
ID=41376876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980108738.7A Active CN101970999B (en) | 2008-05-24 | 2009-03-11 | Vibration testing device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4812879B2 (en) |
| KR (1) | KR101242523B1 (en) |
| CN (1) | CN101970999B (en) |
| TW (1) | TWI461677B (en) |
| WO (1) | WO2009144989A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106461499A (en) * | 2014-03-12 | 2017-02-22 | 斯派克塔震动科技与声学德累斯顿有限公司 | Vibration exciter having load compensation |
| CN113125163A (en) * | 2020-01-15 | 2021-07-16 | 本田技研工业株式会社 | Vibration adding device |
| CN113692526A (en) * | 2019-04-22 | 2021-11-23 | 本田技研工业株式会社 | Vibration adding device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101236437B1 (en) * | 2011-04-04 | 2013-02-21 | 국방과학연구소 | Spherical Bearing and Supporting Apparatus for Vibration Test using the Same |
| JP5913910B2 (en) * | 2011-04-26 | 2016-04-27 | 国際計測器株式会社 | Linear motion actuator and vibration device |
| JP6130892B2 (en) * | 2011-04-26 | 2017-05-17 | 国際計測器株式会社 | Electrodynamic actuator and electrodynamic excitation device |
| KR101236923B1 (en) * | 2011-07-01 | 2013-02-25 | 대원강업주식회사 | Burst ＆ Buckling for testing air spring |
| JP6147178B2 (en) * | 2013-12-12 | 2017-06-14 | 株式会社ジェイテクト | Bearing testing machine |
| KR102016412B1 (en) * | 2018-03-15 | 2019-08-30 | 케이티엠엔지니어링(주) | An Apparatus for Investigating a Wheel Shaft Bearing of a Train |
| CN113465851B (en) * | 2021-06-30 | 2023-06-27 | 湖北恒利建材科技有限公司 | Concrete vibrating table device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2861223B2 (en) * | 1990-03-23 | 1999-02-24 | 日本精工株式会社 | Impact-resistant linear guide device |
| JP3084904B2 (en) * | 1992-04-06 | 2000-09-04 | 株式会社日立製作所 | Railway vehicle test apparatus and method |
| JP3415288B2 (en) * | 1993-11-09 | 2003-06-09 | 株式会社東芝 | Information recording / reproducing device |
| JP4044376B2 (en) * | 2002-06-24 | 2008-02-06 | 株式会社ノーケン | Temperature measurement method, object detection method and object detection apparatus for vibration type level sensor |
| JP2006234032A (en) | 2005-02-23 | 2006-09-07 | Nsk Ltd | Linear guide bearing device |
| CN200989818Y (en) * | 2006-11-03 | 2007-12-12 | 大连佳博轴承仪器有限公司 | Vertical shaft semi-automatic bearing vibration measuring device |
| US9266967B2 (en) * | 2007-12-21 | 2016-02-23 | Hoffmann-La Roche, Inc. | Bivalent, bispecific antibodies |
-
2009
- 2009-03-11 WO PCT/JP2009/054615 patent/WO2009144989A1/en active Application Filing
- 2009-03-11 KR KR1020107017015A patent/KR101242523B1/en active IP Right Grant
- 2009-03-11 JP JP2009550641A patent/JP4812879B2/en active Active
- 2009-03-11 CN CN200980108738.7A patent/CN101970999B/en active Active
- 2009-05-08 TW TW098115246A patent/TWI461677B/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106461499A (en) * | 2014-03-12 | 2017-02-22 | 斯派克塔震动科技与声学德累斯顿有限公司 | Vibration exciter having load compensation |
| CN113692526A (en) * | 2019-04-22 | 2021-11-23 | 本田技研工业株式会社 | Vibration adding device |
| CN113125163A (en) * | 2020-01-15 | 2021-07-16 | 本田技研工业株式会社 | Vibration adding device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101242523B1 (en) | 2013-03-12 |
| JPWO2009144989A1 (en) | 2011-10-06 |
| TWI461677B (en) | 2014-11-21 |
| KR20100133955A (en) | 2010-12-22 |
| JP4812879B2 (en) | 2011-11-09 |
| CN101970999B (en) | 2014-05-21 |
| WO2009144989A1 (en) | 2009-12-03 |
| TW200949226A (en) | 2009-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101970999B (en) | Vibration testing device | |
| US10351344B2 (en) | Pallet transport device | |
| US7497321B2 (en) | Conveyor system for processing line | |
| TWI597223B (en) | Stacking crane and its application | |
| CN102022016B (en) | Non-avoiding type stereoscopic parking space | |
| CN101277879A (en) | Bracket transferring mechanism and article storing apparatus using the same | |
| US20100058950A1 (en) | Storage and retrieval machine | |
| KR20050067077A (en) | Conveyance facility for processing process | |
| CN106564766B (en) | A kind of transportation system | |
| CN102923479A (en) | Unit and method for conveying workpieces along a processing run | |
| KR20190015302A (en) | Self-propelled module for overloading | |
| CN102712425B (en) | For transporting the delivery system of object and there is the dip treating equipment of this delivery system | |
| CN102311060A (en) | Jacking system | |
| KR20160052857A (en) | Mecanum wheels moving car | |
| JPH07214625A (en) | Clamping device for equipping heavy and large-size mold for plastic injection molding machine | |
| CN102529989B (en) | Security vehicle for long rail train set and long rail train set | |
| CN101327887B (en) | Drive for vertical lifts | |
| US7752698B2 (en) | Carwash brush extension arm with roller bearings | |
| CN102770598A (en) | Tamping machine with an additional lifting device | |
| US20210339994A1 (en) | Industrial truck | |
| JP5479207B2 (en) | Mechanical parking lot | |
| CN101432217B (en) | Elevating platform, in particular for small lifting heights | |
| KR101878865B1 (en) | Steering bogie for railway vehicle | |
| JP3987897B2 (en) | Bridge girder feeding method and feeding device used therefor | |
| CN105236311A (en) | Stacking machine with high-speed upper and lower balanced walking driving mechanisms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |