CN105539489A - Rigidity-adjustable elastic hinging device of low-floor train and rigidity adjusting method of rigidity-adjustable elastic hinging device - Google Patents
Rigidity-adjustable elastic hinging device of low-floor train and rigidity adjusting method of rigidity-adjustable elastic hinging device Download PDFInfo
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- CN105539489A CN105539489A CN201410595402.0A CN201410595402A CN105539489A CN 105539489 A CN105539489 A CN 105539489A CN 201410595402 A CN201410595402 A CN 201410595402A CN 105539489 A CN105539489 A CN 105539489A
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Abstract
The invention discloses a rigidity-adjustable elastic hinging device of a low-floor train and a rigidity adjusting method of the rigidity-adjustable elastic hinging device. The elastic hinging device of the low-floor train comprises a center pin, a spherical hinge joint pair and a rigid hook. The center pin is integrally connected with the rigid hook. The elastic hinging device further comprises a middle plate, a front support, a rear support, a first rubber supporting body, a second rubber supporting body, a first rubber backstop, a second rubber backstop, a first transverse stop block and a second transverse stop block. The front support and the rear support are both arranged between the first rubber supporting body and the second rubber supporting body. Rubber in the first rubber supporting body and rubber in the second rubber supporting body are both transverse and pre-stretched in the direction away from the front support and the rear support. The spherical hinge joint pair and the front support are integrally connected. The inner diameter of the spherical hinge joint pair is matched with the outer diameter of the center pin. The center pin penetrates through the spherical hinge joint pair, so that the rigid hook and the front support are connected in a matched mode. By means of the rigidity-adjustable elastic hinging device, the requirement for a small-curvature radius of an urban track is met while the train operation comfort is improved, and the driving safety can be guaranteed.
Description
Technical field
The present invention relates to a kind of low-floor light rail vehicle articulated section and method of work thereof, particularly relate to a kind of low floor vehicle elastic hinge joint device of adjustable stiffness and the method for adjustment rigidity thereof, belong to rail transit train technical field.
Background technology
At present, along with the increase of urban passenger flow amount, low floor light rail train more piece is hung and is also become inexorable trend with make-up type is flexible and changeable, and the floor of low floor light rail train is nearer apart from rail level, there is no traditional hitch installing space, and urban inner track traffic route has the feature of the little and ramp urgency of radius of curvature, is badly in need of a kind of suitable low floor track train and connects suspension mechanism to meet above-mentioned requirements.
Between at the bottom of the car of existing low floor train adjacent compartment, general employing fixes hinge device, general employing elasticity hinge device between the roof of adjacent compartment, fixing hinge device wherein at the bottom of car limits the translation in three directions, three directions are allowed to rotate, bear the vertical force of train, transmit the most longitudinal traction of adjacent train (current of traffic) and transverse force; Between roof adopt elastic hinge joint device to allow adjacent train spaced winding vertical axis to rotate, vertical and horizontal rigidity is provided by device inner rubber parts, it is by the device that is fixedly hinged at the bottom of cooperation car, bear the part longitudinal traction of train, limit the motion of sidewindering and nod between adjacent car body, make between adjacent train, only to there is the degree of freedom of relatively shaking the head, meet the requirement of city small curvature radius track, crossing steep gradient requirement for meeting train simultaneously, between the adjacent train roof every certain joint number, adopting free articulated device to replace elasticity hinge device.
But existing elasticity hinge device can not automatically adjust the rigidity of himself according to the road conditions of city rail and cannot provide safety control when hairpin curve crossed by train, thus it can not better be applicable to city rail and it leaves potential safety hazard.
To sum up, how to design a kind of can according to the road conditions of city rail automatically adjust stiffness by itself low floor track train roof elastic hinge joint device and adjustment stiffness by itself method, make roof elastic hinge joint device to be applicable to city rail, make it in transmission to tractive force with city rail small curvature radius can also be met while improving train operation traveling comfort and require and ensure that the safety crossing the hairpin curve of larger radius of curvature at train is urgent problem.
Authorization Notice No. is CN201442584U, authorized announcement date is that the Chinese utility model patent on April 28th, 2010 discloses the hinged elastic hinge joint device of a kind of urban low-floor track train, center pin and rigidity gib head are fixed as one, elastic joint is secondary to be fixed as one with elasticity gib head, ball pivot joint its external diameter secondary matches with the endoporus of elastic joint pair, and its internal diameter matches with the external diameter of center pin.
Elastic hinge joint device in above-mentioned patent documentation automatically can not adjust stiffness by itself according to the road conditions of city rail and cannot for providing safety control when hairpin curve crossed by train, so above-mentioned elastic hinge joint device also cannot solve the problems of the technologies described above.
Summary of the invention
Technical matters to be solved by this invention is the defect for existing in prior art, a kind of low floor vehicle elastic hinge joint device of adjustable stiffness and the method for adjustment rigidity thereof are provided, it can adjust the rigidity of self automatically according to the road conditions of city rail, thus it can better be applicable to city rail, it is transmitting to tractive force and can also meet the requirement of city rail small curvature radius while improving train operation traveling comfort and can ensure at train by safety during larger radius of curvature hairpin curve.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of low floor vehicle elastic hinge joint device of adjustable stiffness, comprise center pin, the secondary rigidity gib head with being fixedly installed on a joint compartment in ball pivot joint, described center pin and rigidity gib head are fixedly connected into one, described low floor vehicle elastic hinge joint device also comprises intermediate plate, be separately positioned on described intermediate plate relative to the front bearing on two sides and rear support, by connecting thus the rubber mount body one that described intermediate plate flying shore is got up and rubber mount body two relative to two sides with described intermediate plate, be arranged on the rubber backstop one on the relative two sides of described rear support and rubber backstop two, match with described rubber backstop one and rubber backstop two and the horizontal block one be fixedly installed on respectively on described rubber mount body one and rubber mount body two and horizontal block two, described front bearing and the rear support position all between described rubber mount body one and rubber mount body two, rubber in described rubber mount body one and rubber mount body two is all be in laterally and towards the pretensioned state away from described front bearing and rear support direction, gap is left between described rubber backstop one and horizontal block one, also gap is left between described rubber backstop two and horizontal block two, described rubber mount body one saves compartment with rubber mount body two and other and is fixedly connected with, described ball pivot joint is secondary to be connected to one with front bearing, the external diameter of the secondary internal diameter in described ball pivot joint and described center pin matches, pass described ball pivot joint pair by described center pin thus described rigidity gib head and front bearing are connected.
Preferably, described rubber mount body one and rubber mount body two include front rubber mount body, rear rubber mount body, overhead gage and lower baffle plate, the front elastic rubbery body that described front rubber mount body comprises front supports base plate, front supports top board and is arranged between described front supports base plate and front supports top board, the rear elastic rubbery body that described rear rubber mount body comprises rear supports base plate, rear supports top board and is arranged between described rear supports base plate and rear supports top board, the overhead gage of described rubber mount body one, the lower baffle plate of rubber mount body one, the front supports base plate of rubber mount body one and the rear supports base plate of rubber mount body one connect into quadra structure, the overhead gage of described rubber mount body two, the lower baffle plate of rubber mount body two, the front supports base plate of rubber mount body two and the rear supports base plate of rubber mount body two also connect into quadra structure, be connected with the relative two sides of described intermediate plate respectively with the rear supports top board of rubber mount body one by the front supports top board of described rubber mount body one and be connected with the relative two sides of described intermediate plate respectively by the front supports top board of described rubber mount body two and the rear supports top board of rubber mount body two thus by described intermediate plate flying shore, the forward and backward elastic rubbery body of described rubber mount body one and the forward and backward elastic rubbery body of described rubber mount body two are all in laterally and towards the pretensioned state away from described front bearing and rear support direction.
Preferably, limited impression is provided with on the relative two sides of the described intermediate plate be connected with the rear supports top board of rubber mount body one with the front supports top board of described rubber mount body one and on the relative two sides of the described intermediate plate be connected with the rear supports top board of rubber mount body two with the front supports top board of described rubber mount body two, the front supports top board of described rubber mount body one, the rear supports top board of rubber mount body one, the front supports top board of rubber mount body two and the rear supports top board of rubber mount body two all match with described limited impression, by the front supports top board of described rubber mount body one, the rear supports top board of rubber mount body one, the front supports top board of rubber mount body two and the rear supports top board of rubber mount body two snap in described limited impression the front supports top board making described rubber mount body one respectively, the rear supports top board of rubber mount body one, the front supports top board of rubber mount body two and the rear supports top board of rubber mount body two are connected with the relative two sides of described intermediate plate thus respectively by described intermediate plate flying shore.
Preferably, the rear elastic rubbery body of the front elastic rubbery body of described rubber mount body one, the rear elastic rubbery body of rubber mount body one, the front elastic rubbery body of rubber mount body two and rubber mount body two is all in longitudinal its pre-compressed state.
Preferably, dividing plate is provided with in the rear elastic rubbery body of the front elastic rubbery body of described rubber mount body one, the rear elastic rubbery body of rubber mount body one, the front elastic rubbery body of rubber mount body two and rubber mount body two.
Preferably, on the top of described intermediate plate with bottom and the position corresponding with the upper and lower baffle plate of described rubber mount body one and rubber mount body two is provided with friction lining.
Preferably, described rubber backstop one and rubber backstop two include backstop base plate, are arranged on the backstop projection on described backstop base plate and are arranged on the backstop rubber wrapped on described backstop base plate and by described backstop projection; To be connected with the sidepiece of rear support by the backstop base plate of described rubber backstop one and rubber backstop two and described rubber backstop one and rubber backstop two are connected on the relative two sides of described rear support.
The present invention also discloses a kind of method of low floor vehicle elastic hinge joint device adjustment rigidity of adjustable stiffness as above, the rigidity of described floor car elastic hinge joint device carrys out self-align according to train through the city rail road conditions of rectilinear orbit, small curvature radius track or larger radius of curvature track, that is:
When train is through rectilinear orbit, all be in laterally and towards the pretensioned state away from described front bearing and rear support direction by the rubber in described rubber mount body one and rubber mount body two, make described low floor vehicle elastic hinge joint device comparatively large in the firm incipient stage rigidity of cross travel, thus when ensureing train linear running, the yaw of transverse direction is little of to improve the traveling comfort run;
When train is through small curvature radius track, moved relative to rubber mount body one and rubber mount body two by described intermediate plate, its moving direction is laterally and moves towards the side of rubber mount body one or the side of rubber mount body two, make to increase further towards the amount of tension of the rubber of the rubber mount body of this side movement, and the amount of tension of the rubber of the rubber mount body of side reduces gradually in addition, thus after a section moves, the lateral stiffness of described low floor vehicle elastic hinge joint device is diminished, ensure that train meets the requirement by small curvature radius track,
When train is through larger radius of curvature track, continue to move towards the side of rubber mount body one or the side of rubber mount body two by described intermediate plate, thus drive the rubber backstop one that is arranged on described intermediate plate or the horizontal block two of rubber backstop two on the horizontal block one or rubber mount body two of described rubber mount body one to move and contact with the horizontal block two-phase on the horizontal block one of described rubber mount body one or rubber mount body two the horizontal variation rigidity realizing described low floor vehicle elastic hinge joint device, rollover accident can not be there is when ensureing that hairpin curve crossed by train.
Preferably, dividing plate is provided with in the rear elastic rubbery body of the front elastic rubbery body of described rubber mount body one, the rear elastic rubbery body of rubber mount body one, the front elastic rubbery body of rubber mount body two and rubber mount body two;
By arranging the number of plies of described dividing plate and/or adjusting the design requirement that described rubber mount body one and the rubber parameter of the forward and backward elastic rubbery body of rubber mount body two meet different longitudinal rigidity.
Preferably, the rear elastic rubbery body of the front elastic rubbery body of described rubber mount body one, the rear elastic rubbery body of rubber mount body one, the front elastic rubbery body of rubber mount body two and rubber mount body two is all in longitudinal its pre-compressed state.
Beneficial effect of the present invention is: the present invention can adjust self rigidity automatically according to the road conditions of city rail, thus it can better be applicable to city rail, it can also meet the requirement of city rail small curvature radius in transmission to tractive force with while improving train operation traveling comfort, and it prevents train by there is rollover accident during larger radius of curvature hairpin curve by variation rigidity, ensure that the driving safety of train; Low floor vehicle elastic hinge joint apparatus structure in the present invention is simple, and each parts easy accessibility of device is safe and reliable to operation, easy to maintenance, efficiently solves the problem that urban low-floor track traffic more piece low floor train connects marshalling; Front elastic rubbery body in low floor vehicle elastic hinge joint device of the present invention and rear elastic rubbery body are provided with longitudinal pre compressed magnitude, make this device in train travelling process, forward and backward elastic rubbery body only bears compression effort, meet operating needs, substantially increase the service life of forward and backward elastic rubbery body; Dividing plate and/or adjustment rubber parameter by arranging the different number of plies in front elastic rubbery body in low floor vehicle elastic hinge joint device of the present invention and rear elastic rubbery body carry out the design requirement of satisfied different longitudinal rigidity.
Accompanying drawing explanation
Fig. 1 is the local mounting structure schematic diagram of the low floor vehicle elastic hinge joint device in the embodiment of the present invention 1;
Fig. 2 is the sectional perspective structural representation of the low floor vehicle elastic hinge joint device in the embodiment of the present invention 1;
Fig. 3 is the principle of work structural representation of the low floor vehicle elastic hinge joint device in the embodiment of the present invention 1;
Fig. 4 is the detonation configuration schematic diagram of the rubber mount body one in Fig. 2;
Fig. 5 is the detonation configuration schematic diagram of the rubber mount body two in Fig. 2;
Fig. 6 is the plan structure schematic diagram of the intermediate plate after installing forward and backward bearing in the embodiment of the present invention 1;
Fig. 7 be in Fig. 6 along A to structural representation;
Fig. 8 is longitudinal sectional structure schematic diagram of rubber backstop one and rubber backstop two in the embodiment of the present invention 1;
Fig. 9 tests to the lateral stiffness that carries out of the low floor vehicle elastic hinge joint device in the embodiment of the present invention 1 the lateral stiffness diagram of curves obtained;
Figure 10 is the detonation configuration schematic diagram of the rubber mount body one in the embodiment of the present invention 2;
Figure 11 is the detonation configuration schematic diagram of the rubber mount body two in the embodiment of the present invention 2;
Figure 12 is the principle of work structural representation of the low floor vehicle elastic hinge joint device in the embodiment of the present invention 2;
In figure: 1. center pin, 2. ball pivot joint is secondary, 3. rigidity gib head, 4. intermediate plate, 5. front bearing, 6. rear support, 7. rubber mount body one, 8. rubber mount body two, 9. rubber backstop one, 10. rubber backstop two, 11. horizontal blocks one, rubber mount body before 12. horizontal block two .13., 131. front supports base plates, 132. front supports top boards, elastic rubbery body before 133., rubber mount body after 14., 141. rear supports base plates, 142. rear supports top boards, elastic rubbery body after 143., 15. overhead gages, 16. lower baffle plates, 17. limited impressions, 18. horizontal raised lines one, 19. horizontal raised lines two, 20. vertical raised lines, 21. friction linings, 22. backstop base plates, 23. backstop projections, 24. backstop rubber, 25. dividing plates.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, explaination detailed is further done to technical scheme of the present invention.
After longitudinal direction in the present invention refers to that low floor vehicle elastic hinge joint device installs, along the length direction in compartment; After laterally referring to that low floor vehicle elastic hinge joint device installs, along the cross direction in compartment.
Embodiment 1: as shown in Figure 1 to Figure 3, a kind of low floor vehicle elastic hinge joint device of adjustable stiffness, comprise center pin 1, ball pivot joint secondary 2 and the rigidity gib head 3 be fixedly installed on a joint compartment, described center pin 1 is fixedly connected with integral with rigidity gib head 3, low floor vehicle elastic hinge joint device also comprises intermediate plate 4, be separately positioned on the front bearing 5 on the relative two sides of described intermediate plate 4 and rear support 6, described front bearing 5, rear support 6 and intermediate plate 4 are linked into an integrated entity by M16 bolt, by connecting with the described relative two sides of intermediate plate 4 thus the rubber mount body 1 that described intermediate plate 4 flying shore is got up and rubber mount body 28, be arranged on the rubber backstop 1 on the relative two sides of described rear support 6 and rubber backstop 2 10, match with described rubber backstop 1 and rubber backstop 2 10 and the horizontal block 1 be fixedly installed on respectively on described rubber mount body 1 and rubber mount body 28 and horizontal block 2 12, described front bearing 5 and rear support 6 are all along the position on described intermediate plate 4 length direction and between described rubber mount body 1 and rubber mount body 28, rubber in described rubber mount body 1 and rubber mount body 28 is all be in laterally and towards the pretensioned state away from described front bearing 5 and rear support 6 direction, gap is left between described rubber backstop 1 and horizontal block 1, also gap is left between described rubber backstop 2 10 and horizontal block 2 12, described rubber mount body 1 saves compartment with rubber mount body 28 by bolt and other and is fixedly connected with, described ball pivot joint secondary 2 is connected to one with front bearing 5, the external diameter of secondary 2 internal diameters in described ball pivot joint and described center pin 1 matches, pass described ball pivot joint secondary 2 by described center pin 1 thus described rigidity gib head 3 and front bearing 5 are connected.Lateral stiffness is designed to variation rigidity, and when the entrucking of this device, according to designing requirement, the rubber in rubber mount body 1 and rubber mount body 28 carries out certain prestension L respectively to two ends
1, in this case, between rubber backstop and horizontal block, distance is L
2according to characteristic and the test experience of rubber creep, this device is larger in cross travel firm incipient stage rigidity, make the yaw of transverse direction during train linear running little of to improve the traveling comfort run, after a section moves, lateral stiffness diminishes again, makes train meet requirement by small curvature radius track, when rubber backstop is with when contacting to horizontal block, rigidity sharply becomes large, when preventing train from crossing bend, rollover accident occurs.
As shown in Figures 2 to 5, described rubber mount body 1 and rubber mount body 28 include front rubber mount body 13, rear rubber mount body 14, overhead gage 15 and lower baffle plate 16, described front rubber mount body 13 comprise front supports base plate 131, front supports top board 132 and sulfuration between described front supports base plate 131 and front supports top board 132 before elastic rubbery body 133, described rear rubber mount body 14 comprises rear supports base plate 141, rear supports top board 142 and the sulfuration rear elastic rubbery body 143 in the rear between supporter base plate 141 and rear supports top board 142, the overhead gage 15 of described rubber mount body 1, the lower baffle plate 16 of rubber mount body 1, the front supports base plate 131 of rubber mount body 1 and the rear supports base plate 141 of rubber mount body 1 connect into quadra structure by M12 bolt, the overhead gage 15 of described rubber mount body 28, the lower baffle plate 16 of rubber mount body 28, the front supports base plate 131 of rubber mount body 28 and the rear supports base plate 141 of rubber mount body 28 also connect into quadra structure by M12 bolt, be connected with the relative two sides of described intermediate plate 4 respectively with the rear supports top board 142 of rubber mount body 1 by the front supports top board 132 of described rubber mount body 1 and be connected with the relative two sides of described intermediate plate 4 respectively by the front supports top board 132 of described rubber mount body 28 and the rear supports top board 142 of rubber mount body 28 thus by described intermediate plate 4 flying shore, now front bearing 5 and rear support 6 also together with got up by flying shore, the front elastic rubbery body 133 of the front elastic rubbery body 133 of described rubber mount body 1 and rear elastic rubbery body 143 and described rubber mount body 28 and rear elastic rubbery body 143 are all in laterally and towards the pretensioned state away from described front bearing 5 and rear support 6 direction, namely before assembling the present embodiment, first will by one end of the front elastic rubbery body of rubber mount body 1 133 near intermediate plate 4 and near one end of the rear elastic rubbery body 143 of the rubber mount body 1 of intermediate plate 4 in laterally and towards the prestension away from described front bearing and rear support direction, before in rubber mount body 28, rear elastic rubbery body also will as before in rubber mount body 1 near one end of intermediate plate 4, the same prestension of rear elastic rubbery body, after assembling, before in rubber mount body 28 and rubber mount body 1, rear elastic rubbery body is a pair horizontal V-type towards the opposite.Described horizontal block 1 and horizontal block 2 12 are connected on the rear supports base plate 141 of rubber mount body 1 and the rear supports base plate 141 of rubber mount body 28 respectively by bolt.As shown in Figure 3, when whole device is installed to after between compartment, the forward and backward elastic rubbery body of rubber mount body 1 and rubber mount body 28 is all in above-mentioned pretensioned state, according to characteristic and the test experience of rubber creep, make this device comparatively large in the firm incipient stage rigidity of cross travel, make the yaw of transverse direction during train linear running little of to improve the traveling comfort run, when train is by small curvature radius track, intermediate plate 4 can move relative to rubber mount body 1 and rubber mount body 28, its moving direction is laterally and moves towards the side of rubber mount body 1 or the side of rubber mount body 28, because intermediate plate 4 moves relative to rubber mount body 1 and rubber mount body 28, so when intermediate plate 7 moves toward side, before being positioned at the rubber mount body of this side, the amount of tension of rear elastic rubbery body increases further, and before another one rubber mount body, the amount of tension of rear elastic rubbery body then reduces gradually, thus make after a section moves, the overall lateral stiffness of this device diminishes, train is made to meet requirement by small curvature radius track, in the moving process of above-mentioned intermediate plate 4, the rubber backstop being arranged on side on intermediate plate 4 moves together along with intermediate plate 4, thus the gap between the rubber backstop making to be arranged on side on intermediate plate 4 and the horizontal block being arranged on the rubber mount body of side reduces gradually, when train is by larger radius of curvature track, intermediate plate 4 can continue to move towards the side of rubber mount body one or the side of rubber mount body two, thus the gap between the rubber backstop making to be arranged on side on intermediate plate 4 and the horizontal block being arranged on the rubber mount body of side continues to reduce, until the rubber backstop being arranged on side on intermediate plate 4 contacts with the horizontal block be arranged on the rubber mount body of side, when rubber backstop is with when contacting to horizontal block, the overall lateral stiffness of this device sharply becomes large, realize variation rigidity, rollover accident is there is when preventing train to cross larger radius of curvature hairpin curve, ensure that the driving safety of train.Suppose that front elastic rubbery body and rear elastic rubbery body lateral stiffness are K
2, so horizontal ≈ 4K of the lateral stiffness K of this device before rubber backstop contacts with horizontal block
2.
As shown in Figure 6 and Figure 7, limited impression 17 is provided with on the relative two sides of the described intermediate plate 4 be connected with the rear supports top board 142 of rubber mount body 1 with the front supports top board 132 of described rubber mount body 1 and on the relative two sides of the described intermediate plate 4 be connected with the rear supports top board 142 of rubber mount body 28 with the front supports top board 132 of described rubber mount body 28, described limited impression 17 can directly dig groove and obtain on the two sides of intermediate plate 4, also can be by obtaining raised line can be set up on the two sides of intermediate plate 4 as the present embodiment, as shown in Figure 6 and Figure 7, the present embodiment is on the side of intermediate plate 4, set up horizontal raised line 1, horizontal raised line 2 19 and vertical raised line 20, by described horizontal raised line 1, horizontal raised line 2 19, the sidepiece of vertical raised line 20 and front bearing 5 and by described horizontal raised line 1, horizontal raised line 2 19, the sidepiece of vertical raised line 20 and rear support 6 surrounds limited impression 17, the front supports top board 132 of described rubber mount body 1, the rear supports top board 142 of rubber mount body 1, the front supports top board 132 of rubber mount body 28 and the rear supports top board 142 of rubber mount body 28 all match with described limited impression 17, by the front supports top board 132 of described rubber mount body 1, the rear supports top board 142 of rubber mount body 1, the front supports top board 132 of rubber mount body 28 and the rear supports top board 142 of rubber mount body 28 snap in the front supports top board 132 making described rubber mount body 1 in described limited impression 17 respectively, the rear supports top board 142 of rubber mount body 1, the front supports top board 132 of rubber mount body 28 and the rear supports top board 142 of rubber mount body 28 are connected with the relative two sides of described intermediate plate 4 thus respectively by described intermediate plate 4 flying shore.Herein, in order to by unsettled for intermediate plate 4, also can rubber mount body 1 and the back and front supporting body top board of rubber mount body 28 and the two sides of intermediate plate 4 be coupled together direct screw.
On the top and bottom of intermediate plate 4 and the position corresponding with described overhead gage 15 and lower baffle plate 16 is also respectively arranged with friction lining 21, in the present embodiment, friction lining 21 is provided with four altogether, the top of intermediate plate 4 and bottom are respectively provided with two panels, its by screw locking on the top and bottom of intermediate plate 4.Friction lining 21 can make train prevent intermediate plate from directly contacting with lower baffle plate 16 with overhead gage 15 when vertical vibration, to reach the noise reducing intermetallic friction and the fatigue life of improving metal parts.
As shown in Figure 2 and Figure 8, described rubber backstop 1 and rubber backstop 2 10 include backstop base plate 22, are arranged on the backstop projection 23 on described backstop base plate 22 and are arranged on the backstop rubber 24 wrapped on described backstop base plate 22 and by described backstop projection 23; To be connected with the sidepiece of rear support 6 by the backstop base plate 22 of described rubber backstop 1 and rubber backstop 2 10 and described rubber backstop 1 and rubber backstop 2 10 are connected on the relative two sides of described rear support 6.Described backstop base plate 22 and backstop projection 23 are structure as a whole, it adopts metallic material, backstop rubber 24 wrap backstop projection 23 and sulfuration on described backstop base plate 22, during installation, with bolt backstop base plate 22 connected with the two sides of rear support 6 thus described rubber backstop 1 and rubber backstop 2 10 be connected on the relative two sides of described rear support 6.
The present invention also discloses a kind of method of low floor vehicle elastic hinge joint device adjustment rigidity of adjustable stiffness as above, namely the rigidity of described floor car elastic hinge joint device carrys out self-align according to train through the city rail road conditions of rectilinear orbit, small curvature radius track or larger radius of curvature track, that is:
When train is through rectilinear orbit, all be in laterally and towards the pretensioned state away from described front bearing 5 and rear support 6 direction by the rubber in described rubber mount body 1 and rubber mount body 28, make described low floor vehicle elastic hinge joint device comparatively large in the firm incipient stage rigidity of cross travel, thus when ensureing train linear running, the yaw of transverse direction is little of to improve the traveling comfort run;
When train is through small curvature radius track, moved relative to rubber mount body 1 and rubber mount body 28 by described intermediate plate 4, its moving direction is laterally and moves towards the side of rubber mount body 1 or the side of rubber mount body 28, make to increase further towards the amount of tension of the rubber of the rubber mount body of this side movement, and the amount of tension of the rubber of the rubber mount body of side reduces gradually in addition, thus after a section moves, the lateral stiffness of described low floor vehicle elastic hinge joint device is diminished, ensure that train meets the requirement by minor radius level curve,
When train is through larger radius of curvature track, continue to move towards the side of the side of rubber mount body 1 or rubber mount body 28 by described intermediate plate 4, thus drive the rubber backstop 1 that is arranged on described intermediate plate 4 or the horizontal block two 12 of rubber backstop 2 10 on the horizontal block 1 or rubber mount body 28 of described rubber mount body 1 to move and contact with the horizontal block 2 12 on the horizontal block 1 of described rubber mount body 1 or rubber mount body 28 and realize the horizontal variation rigidity of described low floor vehicle elastic hinge joint device, rollover accident can not be there is when ensureing that hairpin curve crossed by train.
Fig. 9 is the lateral stiffness diagram of curves that the present embodiment obtains through overtesting, as can be seen from Figure 9, described low floor vehicle elastic hinge joint device is comparatively large in the firm incipient stage rigidity of cross travel, thus when ensureing train linear running, the yaw of transverse direction is little of to improve the traveling comfort run; When train is through small curvature radius track, the lateral stiffness of described low floor vehicle elastic hinge joint device diminishes, and ensures that train meets the requirement by small curvature radius track; When train is through larger radius of curvature track, by the horizontal variation rigidity of described low floor vehicle elastic hinge joint device, when ensureing that hairpin curve crossed by train, rollover accident can not be there is.
During the assembling of this device, first overhead gage 15, lower baffle plate 16, front supports base plate 131 and rear supports base plate 141 are bolted rubber mount body 1 and the rubber mount body 28 of squarely framed structure; Front bearing 5, rear support 6 and intermediate plate 4 are bolted integral, on the top that friction lining 21 is connected to intermediate plate 4 and bottom, form the master metal framework of articulated mounting; Matched with the limited impression 17 on the two sides of intermediate plate 4 by the front supports top board 162 of rubber mount body 1 and rubber mount body 28 and rear supports top board 142 again, to link together overall for master metal framework with rubber mount body 1 and rubber mount body 28 and to make the front elastic rubbery body of described rubber mount body 1 133 and rear elastic rubbery body 143 and the front elastic rubbery body of described rubber mount body 28 133 and rear elastic rubbery body 143 all be in laterally and towards the pretensioned state away from described front bearing 5 and rear support 6 direction; Finally, horizontal block 1 and horizontal block 2 12 are installed on the rear supports base plate 141 of rubber mount body 1 and rubber mount body 28 respectively by bolt, rubber backstop 1 is installed on the relative both sides of rear support 6 respectively by bolt with rubber backstop 2 10.
Embodiment 2: as shown in Figure 10 to Figure 12, compared with embodiment 1, difference is: the front elastic rubbery body 133 of described rubber mount body 1, the rear elastic rubbery body 143 of rubber mount body 1, the front elastic rubbery body 133 of rubber mount body 28 and the rear elastic rubbery body 143 of rubber mount body 28 are all in longitudinal its pre-compressed state.The forward and backward elastic rubbery body of rubber mount body 1 and rubber mount body 28 carries out a certain amount of precompressed compression when assembling, make this device in train travelling process, forward and backward elastic rubbery body only bears compression effort, meet operating needs, substantially increase the service life of forward and backward elastic rubbery body.Front elastic rubbery body and rear elastic rubbery body are single when assembling carries out precompressed compression L
3, after supposing front elastic rubbery body and the assembling of rear elastic rubbery body, longitudinal rigidity is K
1, so the longitudinal rigidity K of this device indulges=4K
1.When longitudinal rigidity designs, need consider that the longitudinal maximum displacement L in train travelling process indulges, ensure that this device maximum displacement L in train travelling process is vertical and be less than L
3, thus ensure front elastic rubbery body and rear elastic rubbery body pressurized not tension all the time in train travelling process.
Dividing plate 25 is provided with in the front elastic rubbery body 133 of described rubber mount body 1, the rear elastic rubbery body 143 of rubber mount body 1, the front elastic rubbery body 133 of rubber mount body 28 and the rear elastic rubbery body 143 of rubber mount body 28.Described dividing plate 25 can be arranged to one or more layers, and the number of plies of setting is more, and the longitudinal rigidity of this device is larger, so the present embodiment can arrange suitable dividing plate 25 number of plies according to the longitudinal rigidity demand of reality, meets the design requirement of different longitudinal rigidity.Also passable herein, the design requirement of satisfied different longitudinal rigidity is carried out by the rubber parameter arranging front elastic rubbery body 133 and rear elastic rubbery body 143.All right herein, the design requirement of the incompatible satisfied different longitudinal rigidity that matched by the rubber parameter that arranges front elastic rubbery body 133 and rear elastic rubbery body 143 and the number of plies that arranges dividing plate 25.In the present embodiment, dividing plate 25 is set to one deck.
To sum up, the present invention can adjust self rigidity automatically according to the road conditions of city rail, thus it can better be applicable to city rail, it can also meet the requirement of city rail small curvature radius in transmission to tractive force with while improving train operation traveling comfort, and it prevents train by there is rollover accident during larger radius of curvature hairpin curve by variation rigidity, ensure that the driving safety of train; Low floor vehicle elastic hinge joint apparatus structure in the present invention is simple, and each parts easy accessibility of device is safe and reliable to operation, easy to maintenance, efficiently solves the problem that urban low-floor track traffic more piece low floor train connects marshalling; Front elastic rubbery body in low floor vehicle elastic hinge joint device of the present invention and rear elastic rubbery body are provided with longitudinal pre compressed magnitude, make this device in train travelling process, forward and backward elastic rubbery body only bears compression effort, meet operating needs, substantially increase the service life of forward and backward elastic rubbery body; Dividing plate and/or adjustment rubber parameter by arranging the different number of plies in front elastic rubbery body in low floor vehicle elastic hinge joint device of the present invention and rear elastic rubbery body carry out the design requirement of satisfied different longitudinal rigidity.
Above embodiment is used for illustrative purposes only; but not limitation of the present invention; person skilled in the relevant technique without departing from the spirit and scope of the present invention; can also make a variety of changes or convert; therefore all equivalent technical schemes also should belong to protection scope of the present invention, and protection scope of the present invention should be limited by each claim.
Claims (10)
1. the low floor vehicle elastic hinge joint device of an adjustable stiffness, comprise center pin, the secondary rigidity gib head with being fixedly installed on a joint compartment in ball pivot joint, described center pin and rigidity gib head are fixedly connected into one, it is characterized in that: described low floor vehicle elastic hinge joint device also comprises intermediate plate, be separately positioned on described intermediate plate relative to the front bearing on two sides and rear support, by connecting thus the rubber mount body one that described intermediate plate flying shore is got up and rubber mount body two relative to two sides with described intermediate plate, be arranged on the rubber backstop one on the relative two sides of described rear support and rubber backstop two, match with described rubber backstop one and rubber backstop two and the horizontal block one be fixedly installed on respectively on described rubber mount body one and rubber mount body two and horizontal block two, described front bearing and the rear support position all between described rubber mount body one and rubber mount body two, rubber in described rubber mount body one and rubber mount body two is all be in laterally and towards the pretensioned state away from described front bearing and rear support direction, gap is left between described rubber backstop one and horizontal block one, also gap is left between described rubber backstop two and horizontal block two, described rubber mount body one saves compartment with rubber mount body two and other and is fixedly connected with, described ball pivot joint is secondary to be connected to one with front bearing, the external diameter of the secondary internal diameter in described ball pivot joint and described center pin matches, pass described ball pivot joint pair by described center pin thus described rigidity gib head and front bearing are connected.
2. the low floor vehicle elastic hinge joint device of adjustable stiffness according to claim 1, is characterized in that: described rubber mount body one and rubber mount body two include front rubber mount body, rear rubber mount body, overhead gage and lower baffle plate, the front elastic rubbery body that described front rubber mount body comprises front supports base plate, front supports top board and is arranged between described front supports base plate and front supports top board, the rear elastic rubbery body that described rear rubber mount body comprises rear supports base plate, rear supports top board and is arranged between described rear supports base plate and rear supports top board, the overhead gage of described rubber mount body one, the lower baffle plate of rubber mount body one, the front supports base plate of rubber mount body one and the rear supports base plate of rubber mount body one connect into quadra structure, the overhead gage of described rubber mount body two, the lower baffle plate of rubber mount body two, the front supports base plate of rubber mount body two and the rear supports base plate of rubber mount body two also connect into quadra structure, be connected with the relative two sides of described intermediate plate respectively with the rear supports top board of rubber mount body one by the front supports top board of described rubber mount body one and be connected with the relative two sides of described intermediate plate respectively by the front supports top board of described rubber mount body two and the rear supports top board of rubber mount body two thus by described intermediate plate flying shore, the forward and backward elastic rubbery body of described rubber mount body one and the forward and backward elastic rubbery body of described rubber mount body two are all in laterally and towards the pretensioned state away from described front bearing and rear support direction.
3. the low floor vehicle elastic hinge joint device of adjustable stiffness according to claim 2, it is characterized in that: on the relative two sides of the described intermediate plate be connected with the rear supports top board of rubber mount body one with the front supports top board of described rubber mount body one and on the relative two sides of the described intermediate plate be connected with the rear supports top board of rubber mount body two with the front supports top board of described rubber mount body two, be provided with limited impression, the front supports top board of described rubber mount body one, the rear supports top board of rubber mount body one, the front supports top board of rubber mount body two and the rear supports top board of rubber mount body two all match with described limited impression, by the front supports top board of described rubber mount body one, the rear supports top board of rubber mount body one, the front supports top board of rubber mount body two and the rear supports top board of rubber mount body two snap in described limited impression the front supports top board making described rubber mount body one respectively, the rear supports top board of rubber mount body one, the front supports top board of rubber mount body two and the rear supports top board of rubber mount body two are connected with the relative two sides of described intermediate plate thus respectively by described intermediate plate flying shore.
4. the low floor vehicle elastic hinge joint device of adjustable stiffness according to claim 2, is characterized in that: the front elastic rubbery body of described rubber mount body one, the rear elastic rubbery body of rubber mount body one, the front elastic rubbery body of rubber mount body two and the rear elastic rubbery body of rubber mount body two are all in longitudinal its pre-compressed state.
5. the low floor vehicle elastic hinge joint device of adjustable stiffness according to claim 2, is characterized in that: be provided with dividing plate in the front elastic rubbery body of described rubber mount body one, the rear elastic rubbery body of rubber mount body one, the front elastic rubbery body of rubber mount body two and the rear elastic rubbery body of rubber mount body two.
6. the low floor vehicle elastic hinge joint device of adjustable stiffness according to claim 2, is characterized in that: on the top of described intermediate plate with bottom and the position corresponding with the upper and lower baffle plate of described rubber mount body one and rubber mount body two is provided with friction lining.
7. according to the low floor vehicle elastic hinge joint device of the adjustable stiffness in claim 1 to 6 described in any one claim, it is characterized in that: described rubber backstop one and rubber backstop two include backstop base plate, are arranged on the backstop projection on described backstop base plate and are arranged on the backstop rubber wrapped on described backstop base plate and by described backstop projection; To be connected with the sidepiece of rear support by the backstop base plate of described rubber backstop one and rubber backstop two and described rubber backstop one and rubber backstop two are connected on the relative two sides of described rear support.
8. the method for the adjustment of the low floor vehicle elastic hinge joint device according to the adjustable stiffness in claim 1 to 7 described in an any one claim rigidity, it is characterized in that: the rigidity of described floor car elastic hinge joint device carrys out self-align according to train through the city rail road conditions of rectilinear orbit, small curvature radius track or larger radius of curvature track, that is:
When train is through rectilinear orbit, all be in laterally and towards the pretensioned state away from described front bearing and rear support direction by the rubber in described rubber mount body one and rubber mount body two, make described low floor vehicle elastic hinge joint device comparatively large in the firm incipient stage rigidity of cross travel, thus when ensureing train linear running, the yaw of transverse direction is little of to improve the traveling comfort run;
When train is through small curvature radius track, moved relative to rubber mount body one and rubber mount body two by described intermediate plate, its moving direction is laterally and moves towards the side of rubber mount body one or the side of rubber mount body two, make to increase further towards the amount of tension of the rubber of the rubber mount body of this side movement, and the amount of tension of the rubber of the rubber mount body of side reduces gradually in addition, thus after a section moves, the lateral stiffness of described low floor vehicle elastic hinge joint device is diminished, ensure that train meets the requirement by small curvature radius track,
When train is through larger radius of curvature track, continue to move towards the side of rubber mount body one or the side of rubber mount body two by described intermediate plate, thus drive the rubber backstop one that is arranged on described intermediate plate or the horizontal block two of rubber backstop two on the horizontal block one or rubber mount body two of described rubber mount body one to move and contact with the horizontal block two-phase on the horizontal block one of described rubber mount body one or rubber mount body two the horizontal variation rigidity realizing described low floor vehicle elastic hinge joint device, rollover accident can not be there is when ensureing that hairpin curve crossed by train.
9. the method for low floor vehicle elastic hinge joint device adjustment rigidity according to claim 8, is characterized in that: be provided with dividing plate in the front elastic rubbery body of described rubber mount body one, the rear elastic rubbery body of rubber mount body one, the front elastic rubbery body of rubber mount body two and the rear elastic rubbery body of rubber mount body two;
By arranging the number of plies of described dividing plate and/or adjusting the design requirement that described rubber mount body one and the rubber parameter of the forward and backward elastic rubbery body of rubber mount body two meet different longitudinal rigidity.
10. the method for low floor vehicle elastic hinge joint device adjustment rigidity according to claim 9, is characterized in that: the front elastic rubbery body of described rubber mount body one, the rear elastic rubbery body of rubber mount body one, the front elastic rubbery body of rubber mount body two and the rear elastic rubbery body of rubber mount body two are all in longitudinal its pre-compressed state.
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| CN201410595402.0A CN105539489B (en) | 2014-10-30 | 2014-10-30 | The low floor vehicle elastic hinge joint device of adjustable stiffness and its method for adjusting rigidity |
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| CN110525143A (en) * | 2019-08-27 | 2019-12-03 | 中国北方车辆研究所 | A kind of vehicle Coupled Rigid-flexible connection method and bindiny mechanism |
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