CN204713091U - A kind of support ball pivot and fulcrum ball hinge device thereof that can prevent torsion bar horizontal looseness - Google Patents
A kind of support ball pivot and fulcrum ball hinge device thereof that can prevent torsion bar horizontal looseness Download PDFInfo
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- CN204713091U CN204713091U CN201520469564.XU CN201520469564U CN204713091U CN 204713091 U CN204713091 U CN 204713091U CN 201520469564 U CN201520469564 U CN 201520469564U CN 204713091 U CN204713091 U CN 204713091U
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Abstract
The utility model discloses a kind of support ball pivot and the fulcrum ball hinge device thereof that can prevent torsion bar horizontal looseness, the rubber coating that the support ball pivot of torsion bar horizontal looseness comprises first lid, second lid and is arranged between first lid and second lid can be prevented, torsion bar is through rubber coating, one end of torsion bar is provided with pivoted arm, be screwed in body frame through second lid and first lid successively by tie bolt, the inner peripheral surface of described rubber coating has succeeding vat, and the outer circumference surface of described torsion bar contacts with the succeeding vat on the inner peripheral surface of rubber coating.The utility model improves in existing structure, and not needing additionally increases parts, and it can reach the object preventing torsion bar horizontal looseness, again reduces manufacturing cost, is also convenient to install.
Description
Technical field
The utility model relates to a kind of support ball pivot and fulcrum ball hinge device thereof of anti-side rolling torsion rod, particularly relates to a kind of support ball pivot and the fulcrum ball hinge device thereof that can prevent torsion bar horizontal looseness.
Background technology
Along with the development of national economy, rapidly, rail traffic vehicles is when designing, and its safety becomes an important research direction in the track traffic development such as the railway of current China, subway and light rail.As shown in Figure 1, the vibration of vehicle mainly contains the degree of freedom of six direction: the bouncing of the stretching vibration of X-direction, the yaw vibration of Y-direction, Z-direction, the pitching around Y-axis, the yawing around Z axis, rolling around X-axis.Current rail traffic vehicles bogie truck is two-stage and hangs, and anti-rolling torsion bar system sidewinders rigidity for regulating vehicle, controls vehicle rolling, to ensure the safe operation of vehicle.
Fig. 1 is the mechanism kinematic figure of anti-rolling torsion bar system, and in figure, M is car body, and E, F are torsion bar supporting base composition, and be installed on framework, A, B, C, D are rubber bushing or metal joint bearing, can rotate in three directions.As seen from the figure, if do not consider the supporting base composition much smaller relative to system stiffness and the impact of rubber arthrosis, when car body is relative to bogie truck generation bouncing, two connecting rods are simultaneously toward a direction motion, whole device rotates around support ball pivot simultaneously, torsion bar is holding capacity or moment of torsion not, therefore does not affect the bouncing of car body, does not provide any additional power or moment of torsion equally equally to the several motion of other except sidewindering.And occur between car body and framework around X-axis relatively rotate namely sidewinder time, left linkages is up-and-down movement in the opposite direction, by reverse arm (FD in figure, EC) torsion bar is made to twist distortion, torsion bar produces antitorque counter torque due to torsional elasticity, this counter torque acts on and vertical connecting rod shows as the contrary vertical force in a pair equal and opposite in direction direction, and this acts on car body just defines to vertical force and sidewinders the contrary anti-roll moment in direction with car body, prevention car body is sidewindered the increase of angle by the effect of anti-roll moment relative to bogie truck, thus suppress sidewindering of vehicle, improve the lateral stability of vehicle.
As shown in Figure 2, the rubber coating 4 that a kind of existing anti-side rolling torsion rod bracing or strutting arrangement comprises torsion bar 1, first lid 2, second lid 3 and is arranged between first lid 2 and second lid 3, torsion bar 1 is through rubber coating 4, one end of torsion bar 1 is provided with pivoted arm 5, is screwed in body frame through second lid 3 and first lid 1 successively by tie bolt 6 thus by torsion bar support and connection on body frame.
But in the working process of reality, there is play (transversely namely refer to after anti-rolling torsion bar system installs, along the axis of torsion bar, be namely expressed as Y-direction in FIG) transversely in torsion bar sometimes.
Authorization Notice No. is CN103072592A, and Shen Qing Publication day is that the horizontal looseness describing this torsion bar in the Chinese invention patent on May 1st, 2013 will bring following harm:
1. torsion bar shaft play will make torsion bar mechanism for preventing side rolling of train carriage depart from its initial designs installation site, and as while Vehicular yaw, composite car body sidewinders motion, will sharply increase the load of torsion bar shaft and other torsion bar mechanism for preventing side rolling of train carriage parts;
2. torsion bar shaft generation play, after weaving is replied, usually can not reset in time, namely make torsion bar mechanism for preventing side rolling of train carriage Composition deviation initial makeup location, and during subsequent vehicle motion in any direction, the load of torsion bar mechanism for preventing side rolling of train carriage part all will sharply increase;
3. the play repeatedly of torsion bar shaft, supports ball pivot by making the stratiform of torsion bar shaft and supporting seat assembly and occurs frequently to rub, and weares and teares and will the stratiform of supporting seat assembly be made to support ball pivot premature failure;
Above-mentioned patent documentation describes the existing several structure and its weak point that prevent torsion bar horizontal looseness simultaneously, therefore, above-mentionedly patent document discloses a kind of Anti-moving fixed sturcture be arranged in rail traffic vehicles torsion bar shaft, this fixed sturcture is split-type structural, comprise: first component and second component, this first component and second component are interconnected to form the yoke configurations of ring-type by the structure that is connected, and this anti-shifting structure can prevent anti-side rolling torsion rod axis from the horizontal looseness of relative support holder assembly occurring when Vehicular yaw.
In addition, application publication number is CN103241257A, Shen Qing Publication day is that the Chinese invention patent on August 14th, 2013 discloses a kind of novel track vehicle anti-side rolling torsion rod transverse elasticity localization method, first offers a groove respectively at the assembling end of described supporting base and reverse arm; Then between supporting base and reverse arm, arrange an elastic thrust pad, described elastic thrust pad two ends are stuck in the groove on described supporting base and reverse arm, carry out transverse elasticity location; Described elastic thrust pad two ends use bolt or pin to be fixed on described supporting base and reverse arm respectively simultaneously, realize circumference location while realizing transverse elasticity location, ensure not produce circumferential movement when reversing and shear.
But the Anti-moving fixed sturcture recorded in above-mentioned two sections of patent documentations or transverse elasticity localization method all still need other design and installation limiting component, if doing so, one is improve manufacturing cost, and two is that install neither be very convenient.
To sum up, how to design a kind of bracing or strutting arrangement of torsion bar, make it improve in existing structure, do not need additionally to increase parts, can reach the object preventing torsion bar horizontal looseness, again reduce manufacturing cost, being also convenient to install is the technical matters being badly in need of solving.
Utility model content
Technical problem to be solved in the utility model is the defect for existing in prior art, a kind of support ball pivot and the fulcrum ball hinge device thereof that can prevent torsion bar horizontal looseness are provided, it improves in existing structure, do not need additionally to increase parts, it can reach the object preventing torsion bar horizontal looseness, again reduce manufacturing cost, be also convenient to install.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of support ball pivot that can prevent anti-side rolling torsion rod horizontal looseness, the rubber coating comprising first lid, second lid and be arranged between first lid and second lid, torsion bar is through rubber coating, one end of torsion bar is provided with pivoted arm, be screwed in body frame through second lid and first lid successively by tie bolt, the inner peripheral surface of described rubber coating has succeeding vat, and the outer circumference surface of described torsion bar contacts with the succeeding vat on the inner peripheral surface of rubber coating.
Preferably, the quantity of described succeeding vat is set to one or more.
Preferably, succeeding vat described in every bar be circumferentially arranged on rubber coating inner peripheral surface on and every bar succeeding vat encloses on inner peripheral surface that the plane of formation and the axes normal of torsion bar or every bar succeeding vat be circumferentially arranged on rubber coating and often the axis of the bar succeeding vat plane and torsion bar that enclose formation tilts crossing.
Preferably, the cross-sectional plane of described succeeding vat is trapezoidal, rectangle, triangle or semicircle.
Preferably, all spacing is left between the two side ends of described rubber coating and the two side ends that first covers and second covers.
The utility model also discloses a kind of fulcrum ball hinge device, comprise according to supporting ball pivot as above, described fulcrum ball hinge device also comprises first supporting seat and second supporting seat, first supporting seat described is fixed on body frame, fulcrum ball hinge is arranged on described between first supporting seat and second supporting seat, be screwed in first supporting seat through second supporting seat, second lid and first lid successively by tie bolt, thus fulcrum ball hinge device is fastened on body frame.
The beneficial effects of the utility model are: the utility model by arranging the torsional stiffness that succeeding vat reduces rubber coating on the inner peripheral surface of rubber coating, when making rolling occurs, rubber coating can reverse always together with torsion bar, can not produce loose from state between rubber coating and torsion bar, thus avoid torsion bar generation horizontal looseness; To be contacted with the outer circumference surface of torsion bar the cross spacing structure defined torsion bar by the succeeding vat arranged, the play of torsion bar transverse direction can be limited further, the utility model improves in existing structure, do not need additionally to increase parts, it can reach the object preventing torsion bar horizontal looseness, again reduce manufacturing cost, be also convenient to install; In addition, succeeding vat is set, also reduces stress concentration phenomenon when colloid is out of shape by compression-expansion, improve the service life of rubber coating.The state leaving spacing will be all set between the two side ends of rubber coating and the two side ends that first covers and second covers, when can prevent rubber coating dilatational strain, two ends bloat the outside of first lid and second lid, the position that bloats avoiding rubber coating rubs mutually with other accessories, further increases the service life of rubber coating.The utility model in fulcrum ball hinge device by setting up first supporting seat and second supporting seat, can stable by torsion bar support and connection on body frame, thus the horizontal looseness of torsion bar can better be prevented and to make torsion bar install so more convenient, improve the installation effectiveness of anti-side rolling torsion rod.
Accompanying drawing explanation
Fig. 1 is existing vehicle two-stage suspended structure and motion schematic diagram thereof;
Fig. 2 is the perspective view of existing anti-side rolling torsion rod bracing or strutting arrangement;
Fig. 3 is the main TV structure schematic diagram supporting ball pivot in the utility model embodiment 1;
Fig. 4 is the plan structure schematic diagram of second lid in the utility model embodiment 1;
Fig. 5 is the sectional structure schematic diagram along G-G line in Fig. 3;
Fig. 6 is the perspective view of fulcrum ball hinge device in the utility model embodiment 1;
Fig. 7 is the plan structure schematic diagram of second lid in the utility model embodiment 2;
Fig. 8 is the plan structure schematic diagram of second lid in the utility model embodiment 3;
Fig. 9 is the plan structure schematic diagram of second lid in the utility model embodiment 4;
In figure: 1. torsion bar, 2. first lid, 3. second lid, 4. rubber coating, 5. pivoted arm, 6. tie bolt, 7. succeeding vat, 8. first supporting seat, 9. second supporting seat, 10. body frame.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, elaboration detailed is further done to the technical solution of the utility model.
Anti-side rolling torsion rod generation horizontal looseness is known in the field, therefore, in the prior art, people make improvements to prevent torsion bar horizontal looseness by various scheme, as several frequently seen improvement project described in first section of patent documentation quoting herein.But why can there is not horizontal looseness to do to carry out research deep further in people to torsion bar.
The applicant of present patent application is by carrying out large quantitative analysis and research discovery to the existing anti-side rolling torsion rod of the one described in background technology bracing or strutting arrangement (as shown in Figure 2), in the anti-side rolling torsion rod bracing or strutting arrangement of this structure, after torsion bar installs, rubber coating is in a kind of its pre-compressed state, thus provide certain precompressed compression to torsion bar.When not there is rolling in vehicle, be the equal of linked together by interference fit between rubber coating and torsion bar, when vehicle generation rolling, rubber coating can produce static friction force to the precompressed compression of torsion bar, when the windup-degree of torsion bar are less, rubber coating and torsion bar can together with reverse, but, when being torqued into certain angle, relative sliding can be there is between rubber coating and torsion bar, thus make to be between rubber coating and torsion bar a pine from state, in this case, the side friction resistance of rubber coating to torsion bar can significantly reduce, if now torsion bar is subject to the effect of the axial force of certain certain load, then horizontal looseness can be there is.Through repeatedly analytical test discovery, producing loose between rubber coating and torsion bar is excessive because of the torsional stiffness of rubber coating from state, after being torqued into certain angle, the rubber coating tangential force reversed needed for respective angles is greater than the friction force between rubber coating and torsion bar, relative sliding is there is between rubber coating and torsion bar, thus create loose from state, cause torsion bar easily horizontal looseness to occur.
The second section of patent documentation quoted herein is (the summary of the invention part see this patent documentation) of setting forth torsion bar generation horizontal looseness reason from the structure design aspect of anti-side rolling torsion rod, and present patent application has researched and analysed the reason of torsion bar generation horizontal looseness, and then proposition solution.
Embodiment 1: as shown in Figures 3 to 5, a kind of support ball pivot that can prevent anti-side rolling torsion rod horizontal looseness, the rubber coating 4 comprising first lid 2, second lid 3 and be arranged between first lid 2 and second lid 3, torsion bar is through rubber coating 4, one end of torsion bar is provided with pivoted arm, be screwed in body frame through second lid 3 and first lid 2 successively by tie bolt, the inner peripheral surface of described rubber coating 4 has succeeding vat 7, succeeding vat 7 is the groove extended continuously, and the outer circumference surface of described torsion bar 1 contacts with the succeeding vat 7 on the inner peripheral surface of rubber coating 4.The inner headed face of rubber coating arranges succeeding vat, can reduce the torsional stiffness of rubber coating, when car body generation rolling, rubber coating can reverse always together with torsion bar, can not produce loose from state between rubber coating and torsion bar, thus avoid torsion bar generation horizontal looseness; In addition, the notch of succeeding vat contacts with the outer circumference surface of torsion bar the cross spacing structure defined torsion bar, can limit the play of torsion bar transverse direction further.When rubber coating is out of shape by compression-expansion, the succeeding vat that the inner peripheral surface of rubber coating is arranged can hold the rubber bodies that a part expands, and reduces stress concentration phenomenon herein, improves the service life of rubber coating.The present embodiment to be reduced the torsional stiffness of rubber coating by arranging succeeding vat on the inner peripheral surface of rubber coating and to be matched with the outer circumference surface of torsion bar by the notch of succeeding vat and form position limiting structure and prevent torsion bar horizontal looseness, it improves in existing structure, do not need additionally to increase parts, it can reach the object preventing torsion bar horizontal looseness, again reduce manufacturing cost, be also convenient to install.
The quantity of described succeeding vat 7 is set to one, on the inner peripheral surface that succeeding vat 7 described in every bar is circumferentially arranged on rubber coating 4 and every bar succeeding vat 7 encloses the plane of formation and the axes normal of torsion bar 1, be arranged to said structure, when torsion bar generation horizontal looseness, by the better effects if of succeeding vat restriction torsion bar horizontal looseness.Rubber coating is to half structure, and on the inner peripheral surface of rubber coating, succeeding vat is circumferentially provided with a whole circle.
The cross-sectional plane of described succeeding vat 7 is semicircle, and also can be arranged to trapezoidal, rectangle or triangle here, being arranged to semicircle is because semicircle does not have wedge angle position, the phenomenon that rubber coating can not be made at wedge angle position to produce stress concentrate.
The two side ends of described rubber coating 4 and first cover between 2 and second two side ends covering 3 and all leave spacing L, spacing L is set to 6mm to 20mm.So in the course of the work, when rubber coating dilatational strain, the two ends of rubber coating will bloat outwardly, the bloating position and can rub mutually with other accessories of rubber coating, cause the damage of rubber coating, in the present embodiment, when setting space L can prevent rubber coating dilatational strain, two ends bloat the outside of first lid and second lid, the position that bloats avoiding rubber coating rubs mutually with other accessories, further increases the service life of rubber coating.
As shown in Figure 6, the present embodiment also discloses a kind of fulcrum ball hinge device, comprise according to supporting ball pivot as above, described fulcrum ball hinge device also comprises first supporting seat 8 and second supporting seat 9, first supporting seat 8 described is fixed on body frame 10, fulcrum ball hinge is arranged on described between first supporting seat 8 and second supporting seat 9, be screwed in first supporting seat 8 through second supporting seat 9, second lid 3 and first lid 2 successively by tie bolt 6, thus fulcrum ball hinge device is fastened on body frame 10.By setting up first supporting seat and second supporting seat, can be stable by torsion bar support and connection on body frame, thus the horizontal looseness of torsion bar can better be prevented and to make torsion bar install so more convenient, improve the installation effectiveness of anti-side rolling torsion rod.
Embodiment 2: as shown in Figure 7, compared with embodiment 1, difference is: the quantity of described succeeding vat 7 is set to many, is parallel to each other between many succeeding vats 7, can prevent the horizontal looseness of torsion bar so further.Succeeding vat is set to three in the present embodiment.
Embodiment 3: as shown in Figure 8, compared with embodiment 1, difference is: on the inner peripheral surface that every bar succeeding vat 7 is circumferentially arranged on rubber coating 4 and the axis of every bar succeeding vat 7 plane and torsion bar 1 of enclosing formation tilts crossing.The state being arranged to by succeeding vat tilt is when being the directed force F in order to be subject to horizontal looseness at torsion bar, utilize the succeeding vat of heeling condition directed force F is resolved into not with torsion bar horizontal looseness two power F in the same way
0and F
1, thus it is spacing better to carry out transversely to torsion bar.
Embodiment 4: as shown in Figure 9, compared with embodiment 3, difference is: the quantity of described succeeding vat 7 is set to many, is parallel to each other between many succeeding vats 7.Be set to three in the present embodiment, the horizontal looseness of torsion bar can be prevented so further.
Embodiment 5: compared with embodiment 1, described succeeding vat is a screw-shaped succeeding vat, namely succeeding vat helically state be arranged on the inner peripheral surface of rubber coating, to be contacted with screw-shaped succeeding vat by the outer circumference surface of torsion bar and prevent the horizontal looseness of torsion bar, like this, the horizontal looseness of torsion bar can be prevented further and further reduce rubber coating produce stress concentration phenomenon.
In sum, the utility model by arranging the torsional stiffness that succeeding vat reduces rubber coating on the inner peripheral surface of rubber coating, when making rolling occurs, rubber coating can reverse always together with torsion bar, can not produce loose from state between rubber coating and torsion bar, thus avoid torsion bar generation horizontal looseness; To be contacted with the outer circumference surface of torsion bar the cross spacing structure defined torsion bar by the succeeding vat arranged, the play of torsion bar transverse direction can be limited further, the utility model improves in existing structure, do not need additionally to increase parts, it can reach the object preventing torsion bar horizontal looseness, again reduce manufacturing cost, be also convenient to install; In addition, succeeding vat is set, also reduces stress concentration phenomenon when colloid is out of shape by compression-expansion, improve the service life of rubber coating.The state leaving spacing will be all set between the two side ends of rubber coating and the two side ends that first covers and second covers, when can prevent rubber coating dilatational strain, two ends bloat the outside of first lid and second lid, the position that bloats avoiding rubber coating rubs mutually with other accessories, further increases the service life of rubber coating.The utility model in fulcrum ball hinge device by setting up first supporting seat and second supporting seat, can stable by torsion bar support and connection on body frame, thus the horizontal looseness of torsion bar can better be prevented and to make torsion bar install so more convenient, improve the installation effectiveness of anti-side rolling torsion rod.
Above embodiment is only for illustration of the utility model, but not limitation ot it.The relevant technologies personnel of related fields, when not departing from spirit and scope of the present utility model, can also make a variety of changes or convert.Therefore, all equivalent technical schemes also should belong to protection domain of the present utility model.Protection domain of the present utility model should be limited by each claim.
Claims (6)
1. one kind can prevent the support ball pivot of anti-side rolling torsion rod horizontal looseness, the rubber coating comprising first lid, second lid and be arranged between first lid and second lid, torsion bar is through rubber coating, one end of torsion bar is provided with pivoted arm, be screwed in body frame through second lid and first lid successively by tie bolt, it is characterized in that: on the inner peripheral surface of described rubber coating, have succeeding vat, the outer circumference surface of described torsion bar contacts with the succeeding vat on the inner peripheral surface of rubber coating.
2. support ball pivot according to claim 1, is characterized in that: the quantity of described succeeding vat is set to one or more.
3. support ball pivot according to claim 2, is characterized in that: on the inner peripheral surface that succeeding vat described in every bar is circumferentially arranged on rubber coating and every bar succeeding vat encloses on inner peripheral surface that the plane of formation and the axes normal of torsion bar or every bar succeeding vat be circumferentially arranged on rubber coating and often the axis of the bar succeeding vat plane and torsion bar that enclose formation tilts crossing.
4. support ball pivot according to claim 3, is characterized in that: the cross-sectional plane of described succeeding vat is trapezoidal, rectangle, triangle or semicircle.
5. according to the support ball pivot in Claims 1-4 described in any one claim, it is characterized in that: between the two side ends of described rubber coating and the two side ends that first covers and second covers, all leave spacing.
6. a fulcrum ball hinge device, comprise according to the support ball pivot in claim 1 to 5 described in any one claim, it is characterized in that: described fulcrum ball hinge device also comprises first supporting seat and second supporting seat, first supporting seat described is fixed on body frame, fulcrum ball hinge is arranged on described between first supporting seat and second supporting seat, be screwed in first supporting seat through second supporting seat, second lid and first lid successively by tie bolt, thus fulcrum ball hinge device is fastened on body frame.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469564.XU CN204713091U (en) | 2015-07-03 | 2015-07-03 | A kind of support ball pivot and fulcrum ball hinge device thereof that can prevent torsion bar horizontal looseness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469564.XU CN204713091U (en) | 2015-07-03 | 2015-07-03 | A kind of support ball pivot and fulcrum ball hinge device thereof that can prevent torsion bar horizontal looseness |
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| CN204713091U true CN204713091U (en) | 2015-10-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071119A1 (en) * | 2015-10-28 | 2017-05-04 | 株洲时代新材料科技股份有限公司 | Method for improving overall performance of rail vehicle bogie and suspension damping system |
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2015
- 2015-07-03 CN CN201520469564.XU patent/CN204713091U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071119A1 (en) * | 2015-10-28 | 2017-05-04 | 株洲时代新材料科技股份有限公司 | Method for improving overall performance of rail vehicle bogie and suspension damping system |
| EP3369640A4 (en) * | 2015-10-28 | 2018-11-14 | Zhuzhou Times New Material Technology Co., Ltd. | Method for improving overall performance of rail vehicle bogie and suspension damping system |
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