CN211494070U - Straddle type monorail traction mechanism with auxiliary steering device and bogie thereof - Google Patents
Straddle type monorail traction mechanism with auxiliary steering device and bogie thereof Download PDFInfo
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- CN211494070U CN211494070U CN201922237207.1U CN201922237207U CN211494070U CN 211494070 U CN211494070 U CN 211494070U CN 201922237207 U CN201922237207 U CN 201922237207U CN 211494070 U CN211494070 U CN 211494070U
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Abstract
The utility model provides a stride a formula single track drive mechanism and bogie with supplementary device that turns to. The straddle type monorail traction mechanism comprises a first upper traction rod, a second upper traction rod, a transverse connecting rod, an auxiliary steering device, a first upper crank and a second upper crank; the first upper crank and the second upper crank respectively comprise a rotating central shaft and three connecting arms integrally arranged on the outer side of the rotating central shaft; the three connecting arms are a first connecting arm, a second connecting arm and a third connecting arm, the extending lines of the first connecting arm, the second connecting arm and the third connecting arm can penetrate through the axis of the rotating center shaft, and the first connecting arm and the third connecting arm are respectively arranged on two sides of the second connecting arm. Three connecting pieces (traction lever, transverse connecting rod, supplementary device that turns to) on being connected to the crank are in same horizontal plane, consequently, the crank only bears the moment of torsion effect, and the atress is simple, and structural design is simple, can be forging or machined part, and manufacturing process is better, and the reliability is high.
Description
Technical Field
The utility model belongs to stride a formula monorail transit vehicle field, particularly relate to a stride a formula single rail drive mechanism and bogie thereof.
Background
Straddle-type monorail bogies are known in the art, in which a monorail bogie supports a vehicle body in front of and behind a monorail vehicle, the monorail bogie supports the vehicle body and moves along a rail beam, and the monorail bogie has running wheels running along the upper surface of the rail and guide wheels running along the side surfaces of the rail and providing lateral support for the monorail vehicle.
A common problem with such monorail bogies is that the load on certain guide wheels of the monorail bogie increases significantly when the monorail bogie is travelling over a curved section of track. In most cases, monorail bogies have four guide wheels that run along the sides of the monorail track: namely an outer inner guide wheel, an outer guide wheel, an inner guide wheel and an inner outer guide wheel, wherein the inner side refers to the side of the monorail bogie close to the center of the monorail car body, and the outer side refers to the side of the monorail bogie close to the end part of the monorail car body; where "inner guide wheel" refers to the wheel on the inside of a curve and "outer guide wheel" refers to the wheel on the outside of a curve.
When the monorail bogie travels over a curved section of track, the outboard inner guide wheel load increases. The increase in load is generally due to a higher slewing stiffness between the monorail bogie and the monorail car on the curved track, which prevents the monorail bogie from being correctly aligned with the monorail track during travel over a curved portion of the track, i.e. the bogie cannot be in the radial position of the curved track. This misalignment results in relatively high load forces on the outboard inner guide wheels (including in some cases the inboard outer guide wheels), which can lead to premature wear of the guide wheels, reducing the useful life of the guide wheels, while the running wheels also produce high cornering forces, which can lead to premature wear of the running wheels, increasing monorail operating costs.
In view of the foregoing, there is a need in the art for a railcar that provides a low load force on the guide wheels and a low cornering force on the running wheels when running on curved sections of the track, and that reduces tire wear.
In response to this problem, chinese patent 2011800744285 provides a traction control assembly, a monorail bogie assembly and a method of operating a steering assist device. From the disclosure of this patent document: in the monorail bogie assembly, three connecting pieces (a traction pull rod, an auxiliary steering oil cylinder and a transverse connecting rod) connected to the bell crank mechanism are not on the same horizontal plane, and the bell crank mechanism not only bears torque applied by the three connecting pieces, but also bears additional bending moment generated by the fact that the three connecting pieces are not on the same horizontal plane, so that the bell crank mechanism is complex in stress, and the bell crank mechanism is complex in casting structure and easy to generate casting defects.
Disclosure of Invention
The utility model discloses to prior art's not enough, provide a single track drive mechanism of formula of striding with supplementary device that turns to, its crank through providing specific structural style (crank on first, the second) for be connected to articulate three connecting piece (traction lever, transverse connecting rod, supplementary device that turns to) and be in same horizontal plane, consequently, the crank only bears the moment of torsion effect, and the atress is simple, and structural design is simple, can be forging or machined part, and manufacturing process is better, and the reliability is high. Additionally, the utility model discloses in articulate shear force gyration arm of force (first connecting arm) sets up in the articulate centre of gyration outside, consequently, increases the turning moment of bogie auxiliary steering, can promote the bogie effectively and turn to.
In order to solve the technical problem, the utility model discloses following technical scheme will be taken:
a straddle type monorail traction mechanism with an auxiliary steering device is connected between a monorail bogie and a monorail car body and comprises: the auxiliary steering device comprises a first upper traction rod, a second upper traction rod, a transverse connecting rod, an auxiliary steering device, a first upper crank and a second upper crank; the method is characterized in that:
the first upper crank and the second upper crank respectively comprise a rotating central shaft and three connecting arms integrally arranged on the outer side of the rotating central shaft; the three connecting arms are respectively a first connecting arm, a second connecting arm and a third connecting arm, extension lines of the first connecting arm, the second connecting arm and the third connecting arm can penetrate through the axis of the rotating central shaft, and the first connecting arm and the third connecting arm are respectively arranged on two sides of the second connecting arm;
the first upper traction rod is hinged with the first connecting arm of the first upper crank;
the second upper traction rod is hinged with the first connecting arm of the second upper crank;
the first upper traction bar and the second upper traction bar are both capable of absorbing traction forces applied to the monorail bogie;
the transverse connecting rod is arranged between the second connecting arm of the first upper crank and the second connecting arm of the second upper crank; the second connecting arm of the first upper crank is connected with the second connecting arm of the second upper crank through a transverse connecting rod;
the auxiliary steering device is arranged between the third connecting arm of the first upper crank and the third connecting arm of the second upper crank; the third connecting arm of the first upper crank is connected with the third connecting arm of the second upper crank through an auxiliary steering device;
the three connecting arms of the first upper crank are respectively positioned on the same plane with the corresponding connecting points of the first upper traction rod, the transverse connecting rod and the auxiliary steering device;
the three connecting arms of the second upper crank are respectively positioned on the same plane with the corresponding connecting points of the second upper traction rod, the transverse connecting rod and the auxiliary steering device;
the auxiliary steering device is deformed in the longitudinal direction during travel of the monorail bogie over a curved portion of the monorail track to generate a torque that is applied to the first upper crank and the second upper crank to apply a gyroscopic torque to the monorail bogie via the first upper traction bar and the second upper traction bar to counteract a gyroscopic resistance torque generated by the secondary suspension system between the monorail bogie and the monorail car body, facilitating relative rotational movement between the monorail bogie and the monorail car body.
Further, the first upper traction rod is elastically connected to the first connecting arm of the first upper crank through a rubber node a; the second upper traction rod is elastically connected to the first connecting arm of the second upper crank through a rubber node b.
Furthermore, one end of the auxiliary steering device is connected with the third connecting arm of the first upper crank through a rubber node c, and the other end of the auxiliary steering device is connected with the third connecting arm of the second upper crank through a rubber node d.
Further, the auxiliary steering device is one of a coil steel spring, a hydraulic cylinder, and a pneumatic cylinder.
Further, the auxiliary steering device is substantially parallel to the transverse link and is disposed co-linearly with the first and second upper crank rotation axes during travel of the monorail bogie over a straight portion of the monorail track.
Further, the device also comprises a bogie pitching control mechanism; the bogie pitching control mechanism comprises a lower traction rod, a torsion bar and a lower crank, wherein the lower traction rod is provided with two first lower traction rods and two second lower traction rods; the torsion bars are provided with two torsion bars which are respectively a first torsion bar and a second torsion bar; the lower cranks are provided with two first lower cranks and two second lower cranks respectively;
the two ends of the first torsion bar are respectively connected with the first lower crank and the first upper crank, the first lower traction bar is hinged with the first lower crank, and the first torsion bar can be basically vertical to the first upper traction bar and the first lower traction bar at the same time;
two ends of the second torsion bar are respectively connected with the second lower crank and the second upper crank, the second lower traction bar is hinged with the second lower crank, and the second torsion bar can be simultaneously basically vertical to the second upper traction bar and the second lower traction bar.
Further, the bicycle comprises a bicycle body connecting seat; the vehicle body connecting seat is fixed with the single-rail vehicle body, and the torsion bar is sleeved in the vehicle body connecting seat in a free rotating manner.
Another technical object of the present invention is to provide a bogie, including the above-mentioned straddle type single-rail traction mechanism.
According to foretell technical scheme, for prior art, the utility model discloses following beneficial effect has:
1. when monorail vehicle passes through the curve track, supplementary steering device can assist the bogie to turn to, reduced the loading capacity of leading wheel, avoided the too early wearing and tearing of leading wheel, improved leading wheel life, reduced the side partial force of walking the line wheel simultaneously, reduced the wearing and tearing of walking the line wheel, improved the life of walking the line wheel, reduced single-track operation cost. When the monorail bogie runs in a straight section of the track, the auxiliary steering device and the rotation centers of the first upper crank and the second upper crank are positioned on the same straight line, no moment is applied to the first upper crank and the second upper crank, and the linear running performance of the monorail vehicle is not influenced.
2. Straddle type single track drive mechanism owing to crank, second go up in first, the second is gone up the crank rotation center pin outside an organic whole and is set up three linking arm for through three linking arm respectively with first crank/second go up crank connection's traction lever, transverse connecting rod, supplementary connection point that turns to the device be in the coplanar, consequently, the crank only bears the moment of torsion effect, the atress is simple, structural design is simple, can be forging or machined part, manufacturing process is better, the reliability is high.
3. The utility modelIn the straddle-type monorail traction mechanism, the shearing force rotation force arm (the first connecting arm) of the crank is arranged outside the rotation center of the crank, so that the rotation moment of the bogie for assisting steering is increased, and the lifting rate of the rotation angle of the bogie relative to the vehicle body is
(where a refers to the distance between the lateral centers of the tie rods 61 and b refers to the distance from the tie rods 61 to the upper crank center 62 d) is effective to facilitate steering of the truck. The minimum curve radius of the track allowed to pass through by the existing monorail traction mechanism is 46 meters, the minimum curve radius allowed to pass through by the monorail traction mechanism can be reduced to 32 meters, and therefore the monorail traction mechanism is particularly suitable for lines with small curves.
The utility model is suitable for a straddle type monorail vehicle also can use other fields, including but not limited to rail vehicle, car and other wheeled cars etc..
Drawings
Fig. 1 is a schematic view of a traction mechanism of the present invention;
fig. 2 is a top view (straight track) of the traction mechanism of the present invention;
fig. 3 is a side view of the traction mechanism of the present invention;
fig. 4 is a top view (curved track) of the traction mechanism of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Unless specifically stated otherwise, the relative arrangement of the components and steps, expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented in other different ways (rotated 90 degrees or at other orientations).
As shown in figure 1, stride a formula monorail traction mechanism, connect between monorail bogie and monorail car body, including traction lever, transverse connecting rod 63, supplementary device 64, crank, body connection seat 68 that turns to, wherein:
the four draw bars comprise two upper draw bars 61a and two lower draw bars, and the two upper draw bars are respectively a first upper draw bar 61a and a second upper draw bar 61 b; the two lower draw bars are a first lower draw bar 61c and a second lower draw bar 61d, respectively.
The number of the cranks is four, and the cranks comprise two upper cranks and two lower cranks.
Two go up the crank, the structure is unanimous, is first crank 62, second crank 65 on respectively, all includes rotation center pin 62d and is the ray form setting at three outlying linking arms of rotation center pin 62d, three linking arms be first linking arm 62a, second linking arm 62b, third linking arm 62c respectively, the axle center setting of rotation center pin 62d can all be passed to the extension line of first linking arm 62a, second linking arm 62b, third linking arm 62c, and first linking arm 62a, third linking arm 62c divide and establish the both sides at second linking arm 62 b.
The two lower cranks are respectively a first lower crank 67a and a second lower crank 67 b.
The vehicle body connecting seats 68 include four connecting seats, which are a first connecting seat 68a, a second connecting seat 68b, a third connecting seat 68c and a fourth connecting seat 68 d.
The connecting joints at the two ends of the upper traction rod and the lower traction rod are rubber nodes. One end of the first upper traction rod 61a is connected with the bogie frame, and the other end is connected with a first connecting arm 62a of a first upper crank; one end of the second upper traction rod 61b is connected with the bogie frame, and the other end is connected with a first connecting arm 65a of a second upper crank; one end of the first lower traction rod 62c is connected with the bogie frame, and the other end is connected with the first lower crank 67 a; one end of the second lower traction rod 62d is connected with the bogie frame, and the other end is connected with the second lower crank 67 b; the traction rod transmits traction force and braking force generated by traction and braking of the vehicle and has movement flexibility within a certain range.
One end of the transverse link 63 is connected to the second connecting arm 62b of the first upper crank via a rubber node, and the other end is connected to the second connecting arm 65b of the first upper crank. The transverse connecting rod is used for restraining the traction mechanism to move, the traction rods on two sides of the bogie are stressed more uniformly in the straight line section, and the bogie is allowed to rotate relative to the vehicle body in the curve section.
One end of the auxiliary steering device 64 is connected with the third connecting arm 62c of the first upper crank through a rubber node, and the other end is connected with the third connecting arm 65c of the first upper crank.
As shown in fig. 2, in the straight line segment of the trajectory, the auxiliary steering device 64 is aligned with the axis of the first upper crank rotation center shaft 62d and the axis of the second upper crank rotation center shaft 65d, and does not function at this time.
When operating in a curved section of track, as shown in fig. 4, the auxiliary steering expands in length, to generate a force F1 applied to the first upper crank third link arm and a force F2 applied to the second upper crank third link arm, the force F1 generating a moment about the first upper crank center of rotation axis 62d, the force F2 generating a moment about the second upper crank center of rotation 65d, thereby respectively carrying the first upper traction rod 61a via the first connecting arm 62a of the first upper crank and applying a turning moment to the monorail bogie frame via the second upper traction rod 61b via the first connecting arm 65a of the second upper crank, so as to counteract the turning resistance moment generated by a secondary suspension system between the monorail bogie and the monorail car and promote relative rotation movement between the monorail bogie and the monorail car, thereby reducing the load force applied to the guide wheels and reducing the lateral deviation force of the running wheels.
The torsion bar 66 is fixedly connected with the second upper crank 66 and the second lower crank 67 b; the first upper crank 62 and the first lower crank 67a are also fixedly connected to the torsion bar 66. When the bogie has a tendency to pitch nod motion, the upper and lower drawbar move in opposite directions, and the torsion bar produces torsion forces that dampen such undesirable pitch nod motion.
Four body attachment sockets 68 are fixedly attached to the body and the torsion bar 66 is free to rotate relative to the body attachment sockets 68 to permit rotational movement of the truck relative to the body.
Fig. 2 and 3 show a top view and a side view of the bogie for a straight track, which includes stabilizing wheels 2, a frame 3, guide wheels 4, running wheels 5, a traction mechanism, and the like. The wheels are all rubber tires, the stabilizing wheels are arranged at the middle positions of two side surfaces of the bogie frame, one wheel is arranged at each side, and the anti-rolling capability of the vehicle is mainly improved; the guide wheels are arranged at the end parts of two side surfaces of the framework, and two guide wheels are arranged on each side and mainly used for guiding the vehicle to move; the running wheels support the vehicle and drive the vehicle to advance, and the guide wheels, the stabilizing wheels and the running wheels are all integrated on the framework. The end parts of four traction rods of the traction mechanism are connected with the bogie frame through rubber nodes.
Claims (8)
1. A straddle type monorail traction mechanism with an auxiliary steering device is connected between a monorail bogie and a monorail car body and comprises: the auxiliary steering device comprises a first upper traction rod, a second upper traction rod, a transverse connecting rod, an auxiliary steering device, a first upper crank and a second upper crank; the method is characterized in that:
the first upper crank and the second upper crank respectively comprise a rotating central shaft and three connecting arms integrally arranged on the outer side of the rotating central shaft; the three connecting arms are respectively a first connecting arm, a second connecting arm and a third connecting arm, extension lines of the first connecting arm, the second connecting arm and the third connecting arm can penetrate through the axis of the rotating central shaft, and the first connecting arm and the third connecting arm are respectively arranged on two sides of the second connecting arm;
the first upper traction rod is hinged with the first connecting arm of the first upper crank;
the second upper traction rod is hinged with the first connecting arm of the second upper crank;
the first upper traction bar and the second upper traction bar are both capable of absorbing traction forces applied to the monorail bogie;
the transverse connecting rod is arranged between the second connecting arm of the first upper crank and the second connecting arm of the second upper crank; the second connecting arm of the first upper crank is connected with the second connecting arm of the second upper crank through a transverse connecting rod;
the auxiliary steering device is arranged between the third connecting arm of the first upper crank and the third connecting arm of the second upper crank; the third connecting arm of the first upper crank is connected with the third connecting arm of the second upper crank through an auxiliary steering device;
the three connecting arms of the first upper crank are respectively positioned on the same plane with the corresponding connecting points of the first upper traction rod, the transverse connecting rod and the auxiliary steering device;
the three connecting arms of the second upper crank are respectively positioned on the same plane with the corresponding connecting points of the second upper traction rod, the transverse connecting rod and the auxiliary steering device;
the auxiliary steering device is deformed in the longitudinal direction during travel of the monorail bogie over a curved portion of the monorail track to generate a torque that is applied to the first upper crank and the second upper crank to apply a gyroscopic torque to the monorail bogie via the first upper traction bar and the second upper traction bar to counteract a gyroscopic resistance torque generated by the secondary suspension system between the monorail bogie and the monorail car body, facilitating relative rotational movement between the monorail bogie and the monorail car body.
2. A straddle-type monorail traction mechanism with an auxiliary steering device according to claim 1, characterized in that: the first upper traction rod is elastically connected to a first connecting arm of the first upper crank through a rubber node a; the second upper traction rod is elastically connected to the first connecting arm of the second upper crank through a rubber node b.
3. A straddle-type monorail traction mechanism with an auxiliary steering device according to claim 1, characterized in that: one end of the auxiliary steering device is connected with the third connecting arm of the first upper crank through a rubber node c, and the other end of the auxiliary steering device is connected with the third connecting arm of the second upper crank through a rubber node d.
4. A straddle-type monorail traction mechanism with an auxiliary steering device according to claim 1, characterized in that: the auxiliary steering device is one of a spiral steel spring, a hydraulic cylinder and a pneumatic cylinder.
5. A straddle-type monorail traction mechanism with an auxiliary steering device according to claim 1, characterized in that: the auxiliary steering device is substantially parallel to the transverse link and is arranged in line with the first upper crank and the second upper crank axis of rotation during travel of the monorail bogie over a straight section of the monorail track.
6. A straddle-type monorail traction mechanism with an auxiliary steering device according to claim 1, characterized in that: the bogie comprises a bogie pitching control mechanism; the bogie pitching control mechanism comprises a lower traction rod, a torsion bar and a lower crank, wherein the lower traction rod is provided with two first lower traction rods and two second lower traction rods; the torsion bars are provided with two torsion bars which are respectively a first torsion bar and a second torsion bar; the lower cranks are provided with two first lower cranks and two second lower cranks respectively;
the two ends of the first torsion bar are respectively connected with the first lower crank and the first upper crank, the first lower traction bar is hinged with the first lower crank, and the first torsion bar can be basically vertical to the first upper traction bar and the first lower traction bar at the same time;
two ends of the second torsion bar are respectively connected with the second lower crank and the second upper crank, the second lower traction bar is hinged with the second lower crank, and the second torsion bar can be simultaneously basically vertical to the second upper traction bar and the second lower traction bar.
7. A straddle-type monorail traction mechanism with an auxiliary steering device according to claim 1, characterized in that: the bicycle also comprises a bicycle body connecting seat; the vehicle body connecting seat is fixed with the single-rail vehicle body, and the torsion bar is sleeved in the vehicle body connecting seat in a free rotating manner.
8. A bogie comprising the straddle-type monorail traction mechanism of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922237207.1U CN211494070U (en) | 2019-12-13 | 2019-12-13 | Straddle type monorail traction mechanism with auxiliary steering device and bogie thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922237207.1U CN211494070U (en) | 2019-12-13 | 2019-12-13 | Straddle type monorail traction mechanism with auxiliary steering device and bogie thereof |
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| CN211494070U true CN211494070U (en) | 2020-09-15 |
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| CN201922237207.1U Active CN211494070U (en) | 2019-12-13 | 2019-12-13 | Straddle type monorail traction mechanism with auxiliary steering device and bogie thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022121235A1 (en) * | 2020-12-11 | 2022-06-16 | 重庆中车长客轨道车辆有限公司 | Straddle-type monorail bogie and straddle-type monorail vehicle |
-
2019
- 2019-12-13 CN CN201922237207.1U patent/CN211494070U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022121235A1 (en) * | 2020-12-11 | 2022-06-16 | 重庆中车长客轨道车辆有限公司 | Straddle-type monorail bogie and straddle-type monorail vehicle |
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Address after: No. 69 Mengxi Road, Wuhu Economic and Technological Development Zone, Wuhu City, Anhui Province, 241000 Patentee after: CRRC Puzhen Alstom Transportation System Co.,Ltd. Address before: No. 69 Mengxi Road, Wuhu Economic and Technological Development Zone, Wuhu City, Anhui Province, 241000 Patentee before: CRRC PUZHEN BOMBARDIER TRANSPORTATION SYSTEMS CO.,LTD. |
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