CN214001656U - Carbon fiber composite anti-side rolling torsion bar - Google Patents
Carbon fiber composite anti-side rolling torsion bar Download PDFInfo
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- CN214001656U CN214001656U CN202022049654.7U CN202022049654U CN214001656U CN 214001656 U CN214001656 U CN 214001656U CN 202022049654 U CN202022049654 U CN 202022049654U CN 214001656 U CN214001656 U CN 214001656U
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Abstract
The utility model relates to a vehicle parts technical field, concretely relates to carbon-fibre composite anti-side rolling torsion bar, include: the cross section of the torsion bar body is circular or elliptical, and the cross section area of two ends of the torsion bar body is smaller than that of the middle part of the torsion bar body; the torsion bar body is perpendicular to the torsion bar arms, the torsion bar arms are parallel to each other, a connecting rod is hinged to the end portion of each torsion bar arm, the torsion bar body and the torsion bar arms are perpendicular to the connecting rod, and a joint is hinged to one end, far away from the torsion bar arms, of the connecting rod. The variable cross-section rod with the thicker middle part and the thinner two ends is designed into the torsion bar body, so that the yield limit of the torsion bar body can be improved, and the torsion bar body can bear larger torque force. The torsion bar body made of the carbon fiber composite material is designed into a variable cross-section bar, so that the carbon fiber composite material torsion bar body can still have the same rigidity and strength as those of a steel structure torsion bar body on the premise of not increasing the installation space.
Description
Technical Field
The utility model relates to a vehicle parts technical field, concretely relates to carbon-fibre composite anti-roll torsion bar.
Background
The anti-rolling torsion bar is used for improving the anti-rolling rigidity of the bogie and reducing the side rolling angle of the vehicle body and the flexibility coefficient of the vehicle, thereby improving the safety, the stability and the comfort of the vehicle. The anti-rolling torsion bar comprises a torsion bar, a tension and compression bar, a rubber node and the like, when the rail vehicle has a rolling trend, the two torsion arms respectively have a reverse moment action on the torsion bar, one is upward, and the other is downward. The torsion bar undergoes torsional elastic deformation, and the restoring elasticity of the torsion bar provides a reaction torque to reduce the roll tendency of the vehicle.
The anti-rolling torsion bar of the rail transit vehicle is made of spring steel or alloy steel metal materials, and the metal torsion bar has the advantages of heavy weight, poor fatigue performance, sensitive defects and strict forming process. At present, the rail transit industry focuses on equipment lightweight, and carbon fiber composite materials have the characteristics of low density, high specific strength, high specific stiffness, excellent fatigue performance, corrosion resistance and the like, and are main materials for lightweight application of rail transit equipment. However, since the carbon fiber composite material with the same volume has lower strength compared with the steel material, the anti-rolling torsion bar with the same shape prepared by using the carbon fiber composite material to replace the steel structure cannot resist the torsion force generated by the side rolling of the vehicle body, so that the anti-rolling torsion bar of the carbon fiber composite material is more prone to fracture, and theoretically, the problems of insufficient rigidity and strength of the torsion bar of the carbon fiber composite material can be solved by directly increasing the diameter of the cross section of the torsion bar, but the installation space of the torsion bar is limited on the whole, the size of the torsion bar cannot be greatly increased, and the anti-rolling torsion bar which only replaces the metal material with the carbon fiber composite material cannot meet the application requirement on the vehicle body.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the carbon-fibre composite anti-roll torsion bar rigidity among the prior art and the not enough defect of intensity to a carbon-fibre composite anti-roll torsion bar is provided.
In order to solve the technical problem, the utility model provides a carbon-fibre composite anti side rolling torsion bar, include:
the cross section of the torsion bar body is circular or elliptical, and the cross section area of two ends of the torsion bar body is smaller than that of the middle part of the torsion bar body;
the torsion bar body is perpendicular to the torsion bar arms, the torsion bar arms are parallel to each other, a connecting rod is hinged to the end portion of each torsion bar arm, the torsion bar body and the torsion bar arms are perpendicular to the connecting rod, and a joint is hinged to one end, far away from the torsion bar arms, of the connecting rod.
Preferably, the torsion bar body and the torsion bar arm are integrally formed members.
Preferably, the torsion bar body includes a first torsion bar and two sections of second torsion bars connected to both ends of the first torsion bar, respectively, and the cross-sectional area of the second torsion bars is smaller than that of the first torsion bars.
Preferably, a first transition rod is connected between the first torsion bar and the second torsion bar, a cross section of one end of the first transition rod, which is in fit connection with the first torsion bar, is the same as a cross section of the first torsion bar, and a cross section of one end of the first transition rod, which is in fit connection with the second torsion bar, is the same as a cross section of the second torsion bar.
Preferably, the first torsion bar and the second torsion bar have elliptical cross-sectional shapes, and the major axis of the cross-section of the first torsion bar and the major axis of the cross-section of the second torsion bar are parallel to the torsion bar arm.
Preferably, an arc-shaped rod is connected between the torsion bar body and the torsion bar arm, and the cross section of the arc-shaped rod is circular.
Preferably, a second transition rod is connected between the torsion bar body and the arc-shaped rod, the cross section of one end, which is in fit connection with the torsion bar body, of the second transition rod is the same as the cross section of the torsion bar body, and the cross section of one end, which is in fit connection with the arc-shaped rod, of the second transition rod is the same as the cross section of the arc-shaped rod.
Preferably, the arc-shaped rod is provided with a reinforcing rib plate which is parallel to the torsion bar body.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a carbon-fibre composite anti side rolling torsion bar, include: the cross section of the torsion bar body is circular or elliptical, and the cross section area of two ends of the torsion bar body is smaller than that of the middle part of the torsion bar body; the torsion bar body is perpendicular to the torsion bar arms, the torsion bar arms are parallel to each other, a connecting rod is hinged to the end portion of each torsion bar arm, the torsion bar body and the torsion bar arms are perpendicular to the connecting rod, and a joint is hinged to one end, far away from the torsion bar arms, of the connecting rod.
Through being the variable cross section pole with the design of torsion bar body, when the automobile body takes place to squint, the automobile body drives the motion of torsion bar body, and the torsion bar body receives the torque force, and when the torque force great exceeded the yield limit of torsion bar body, the torsion bar body of even cross-section can make torsion concentrate at the middle part of torsion bar body and lead to torsion bar body from middle part fracture. The variable cross-section rod with the thicker middle part and the thinner two ends is designed into the torsion bar body, so that the yield limit of the torsion bar body can be improved, and the torsion bar body can bear larger torque force. The torsion bar body made of the carbon fiber composite material is designed into the variable cross-section bar, so that the torsion bar body made of the carbon fiber composite material can still have the same rigidity and strength as those of a steel structure torsion bar body on the premise of not increasing the installation space of the torsion bar body.
2. The utility model provides a carbon-fibre composite anti side roll torsion bar, torsion bar body and torsion bar arm be the integrated into one piece component. The connecting structure between the torsion bar body and the torsion bar arm is omitted, the acting force applied to the torsion bar body and the torsion bar arm by the vertical motion of the car body is overcome by utilizing the good fatigue resistance of the carbon fiber composite material, and the whole weight of the carbon fiber composite material anti-side rolling torsion bar can be further reduced.
3. The utility model provides an anti side roll torsion bar of carbon-fibre composite is connected with first transition pole between first torsion bar and the second torsion bar, and the cross-section of the one end that first transition pole and first torsion bar cooperation are connected is the same with the cross-sectional shape of first torsion bar, and the cross-section of the one end that first transition pole and second torsion bar cooperation are connected is the same with the cross-sectional shape of second torsion bar. The integrity between the first torsion bar and the second torsion bar is increased by arranging the first transition section, and the interface fracture between the first torsion bar and the second torsion bar with different cross-sectional areas is avoided.
4. The utility model provides a carbon-fibre composite anti side roll torsion bar is connected with the arc pole between torsion bar body and the torsion bar arm, and the cross sectional shape of arc pole is circular. Utilize the arc pole to be connected mutually perpendicular's torsion bar body and torsion bar arm for the automobile body can effectively transmit the torsion bar body to the effort of torsion bar arm, can effectively avoid taking place the fracture between torsion bar arm and the torsion bar body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a carbon fiber composite anti-roll torsion bar according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another view angle of a carbon fiber composite anti-rolling torsion bar according to an embodiment of the present invention.
Description of reference numerals: 1. a torsion bar arm; 2. a connecting rod; 3. a joint; 4. a first torsion bar; 5. a second torsion bar; 6. a first transition bar; 7. a second transition bar; 8. a reinforcing rib plate; 9. an arc-shaped rod.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Fig. 1 and fig. 2 show a specific embodiment of a carbon fiber composite anti-roll torsion bar according to the present invention, which includes: the torsion bar comprises a torsion bar body and a pair of torsion bar arms 1, wherein the torsion bar body and the torsion bar arms 1 are integrally formed components. The connecting structure between the torsion bar body and the torsion bar arm 1 is omitted, the acting force applied to the torsion bar body and the torsion bar arm 1 by the vertical motion of the car body is overcome by utilizing the good fatigue resistance of the carbon fiber composite material, and the whole weight of the carbon fiber composite material anti-rolling torsion bar can be further reduced.
The torsion bar body comprises a first torsion bar 4 and two sections of second torsion bars 5 respectively connected to two ends of the first torsion bar 4, and the cross-sectional area of the second torsion bars 5 is smaller than that of the first torsion bar 4. In order to increase the integrity between the first torsion bar 4 and the second torsion bar 5 and avoid interfacial fracture between the first torsion bar 4 and the second torsion bar 5 with different cross-sectional areas, a first transition bar 6 is connected between the first torsion bar 4 and the second torsion bar 5, the cross section of one end of the first transition bar 6, which is in fit connection with the first torsion bar 4, is the same as the cross section of the first torsion bar 4, and the cross section of one end of the first transition bar 6, which is in fit connection with the second torsion bar 5, is the same as the cross section of the second torsion bar 5.
The pair of torsion bar arms 1 are respectively installed at two ends of the torsion bar body, the torsion bar arms 1 are perpendicular to the torsion bar arms 1, the pair of torsion bar arms 1 are parallel to each other, and the connecting rod 2 is hinged to the end portion of the torsion bar arms 1. Under the condition of no external force, the torsion bar body and the torsion bar arm 1 are both vertical to the connecting rod 2, when the connecting rod 2 receives the external force applied by the vehicle body, the connecting rod 2 and the torsion bar arm 1 rotate, or the connecting rod 2 tilts, and the torsion bar body, the torsion bar arm 1 and the connecting rod 2 are not vertical any more. The end of the connecting rod 2 remote from the torque rod arm 1 is hingedly mounted with a joint 3. The link 2 is connected to other structures of the vehicle body by a joint 3. The cross-sectional shapes of the first torsion bar 4 and the second torsion bar 5 are both elliptical, and the long axis of the cross-section of the first torsion bar 4 and the long axis of the cross-section of the second torsion bar 5 are both parallel to the torsion bar arm 1. An arc rod 9 is connected between the torsion bar body and the torsion bar arm 1, and the cross section of the arc rod 9 is circular. Utilize arc pole 9 to be connected mutually perpendicular's torsion bar body and torsion bar arm 1 for the automobile body can effectively transmit the torsion bar body to the effort of torsion bar arm 1, can effectively avoid taking place the fracture between torsion bar arm 1 and the torsion bar body. In order to avoid the occurrence of interfacial fracture between the second torsion bar 5 and the arc bar 9, a second transition bar 7 is connected between the second torsion bar 5 and the arc bar 9, the cross section of one end of the second transition bar 7, which is in fit connection with the second torsion bar 5, is the same as the cross section of the second torsion bar 5, and the cross section of one end of the second transition bar 7, which is in fit connection with the arc bar 9, is the same as the cross section of the arc bar 9. In order to further increase the connection strength of the arc-shaped rods 9, the arc-shaped rods 9 are provided with reinforcing rib plates 8, and the reinforcing rib plates 8 are parallel to the torsion bar body.
The torsion bar body and the torsion bar arm 1 which are integrally formed are prepared by a resin transfer molding process. The temperature sensor and the pressure sensor are pre-installed in the forming process and the die, and the temperature and the pressure of the different parts of the product are monitored in real time to adjust the forming temperature and the forming pressure of the product in real time, so that the quality of the product is ensured, and the phenomenon that the strength of the product is insufficient due to the fact that the formed torsion bar body and the torsion bar arm 1 are uneven is avoided.
Through being the variable cross section pole with the design of torsion bar body, when the automobile body takes place to squint, the automobile body drives the motion of torsion bar body, and the torsion bar body receives the torque force, and when the torque force great exceeded the yield limit of torsion bar body, the torsion bar body of even cross-section can make torsion concentrate at the middle part of torsion bar body and lead to torsion bar body from middle part fracture. The variable cross-section rod with the thicker middle part and the thinner two ends is designed into the torsion bar body, so that the yield limit of the torsion bar body can be improved, and the torsion bar body can bear larger torque force. The torsion bar body made of the carbon fiber composite material is designed into the variable cross-section bar, so that the torsion bar body made of the carbon fiber composite material can still have the same rigidity and strength as those of a steel structure torsion bar body on the premise of not increasing the installation space of the torsion bar body.
In an alternative embodiment, the cross-sectional shape of the torsion bar body is circular, the cross-sectional diameter of the middle part of the torsion bar body is the largest, the cross-sectional diameters of the two ends are the smallest, the cross-sectional diameters of the torsion bar body are uniformly changed, and the torsion bar body is symmetrical along the cross-section of the middle part of the torsion bar body.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (8)
1. A carbon fiber composite anti-roll torsion bar, characterized by comprising:
the cross section of the torsion bar body is circular or elliptical, and the cross section areas of two ends of the torsion bar body are smaller than the cross section area of the middle part of the torsion bar body;
the torsion bar comprises a pair of torsion bar arms (1) which are respectively arranged at two ends of the torsion bar body, the torsion bar body is perpendicular to the torsion bar arms (1), the pair of torsion bar arms (1) are parallel to each other, a connecting rod (2) is hinged to the end portion of each torsion bar arm (1), the torsion bar body and the torsion bar arms (1) are perpendicular to the connecting rod (2), and a joint (3) is hinged to one end, far away from the torsion bar arms (1), of the connecting rod (2).
2. Carbon fibre composite anti roll torsion bar according to claim 1, characterized in that the torsion bar body and the torsion bar arm (1) are an integrally formed component.
3. Carbon fibre composite anti roll torsion bar according to claim 2, characterized in that the torsion bar body comprises a first torsion bar (4) and two sections of second torsion bars (5) connected to the two ends of the first torsion bar (4), respectively, the cross-sectional area of the second torsion bars (5) being smaller than the cross-sectional area of the first torsion bar (4).
4. The carbon fiber composite material anti-roll torsion bar according to claim 3, wherein a first transition bar (6) is connected between the first torsion bar (4) and the second torsion bar (5), the cross section of the end of the first transition bar (6) in fit connection with the first torsion bar (4) is the same as the cross section of the first torsion bar (4), and the cross section of the end of the first transition bar (6) in fit connection with the second torsion bar (5) is the same as the cross section of the second torsion bar (5).
5. Carbon fibre composite anti roll torsion bar according to claim 3 or 4, characterized in that the cross-sectional shape of the first torsion bar (4) and the second torsion bar (5) are both oval, and the major axis of the cross-section of the first torsion bar (4) and the major axis of the cross-section of the second torsion bar (5) are both parallel to the torsion bar arm (1).
6. Carbon fiber composite anti-roll torsion bar according to any one of claims 1 to 4, characterized in that an arc-shaped bar (9) is connected between the torsion bar body and the torsion bar arm (1), and the cross-sectional shape of the arc-shaped bar (9) is circular.
7. The carbon fiber composite material anti-roll torsion bar according to claim 6, wherein a second transition bar (7) is connected between the torsion bar body and the arc-shaped bar (9), the cross section of the end of the second transition bar (7) connected with the torsion bar body is the same as the cross section of the torsion bar body, and the cross section of the end of the second transition bar (7) connected with the arc-shaped bar (9) is the same as the cross section of the arc-shaped bar (9).
8. Carbon fiber composite anti-roll torsion bar according to claim 6, characterized in that a reinforcing rib (8) is mounted on the arc-shaped bar (9), the reinforcing rib (8) being parallel to the torsion bar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022049654.7U CN214001656U (en) | 2020-09-16 | 2020-09-16 | Carbon fiber composite anti-side rolling torsion bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022049654.7U CN214001656U (en) | 2020-09-16 | 2020-09-16 | Carbon fiber composite anti-side rolling torsion bar |
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| Publication Number | Publication Date |
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| CN214001656U true CN214001656U (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022049654.7U Active CN214001656U (en) | 2020-09-16 | 2020-09-16 | Carbon fiber composite anti-side rolling torsion bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115352481A (en) * | 2022-09-01 | 2022-11-18 | 中车株洲电力机车有限公司 | Railway vehicle bogie |
-
2020
- 2020-09-16 CN CN202022049654.7U patent/CN214001656U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115352481A (en) * | 2022-09-01 | 2022-11-18 | 中车株洲电力机车有限公司 | Railway vehicle bogie |
| CN115352481B (en) * | 2022-09-01 | 2023-12-08 | 中车株洲电力机车有限公司 | Railway vehicle bogie |
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