CN111976773A - Guide structure suitable for four-module suspension frame - Google Patents
Guide structure suitable for four-module suspension frame Download PDFInfo
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- CN111976773A CN111976773A CN202010836421.3A CN202010836421A CN111976773A CN 111976773 A CN111976773 A CN 111976773A CN 202010836421 A CN202010836421 A CN 202010836421A CN 111976773 A CN111976773 A CN 111976773A
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- sliding table
- rotating arm
- transverse
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- pull rods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
A guide structure suitable for a four-module suspension frame is characterized in that two sides of the guide structure respectively comprise one-position sliding tables to five-position sliding tables which are longitudinally arranged; the first sliding table, the second sliding table, the third sliding table, the fourth sliding table, the fifth sliding table, the third sliding table and the fourth sliding table are sequentially connected through a first module, a second module and a third module, the guide structure further comprises a guide mechanism and a damping structure, the guide mechanism comprises a T-shaped long rotating arm and a T-shaped short rotating arm, and two transverse end portions of the T-shaped long rotating arm and two transverse end portions of the T-shaped short rotating arm are connected through two long pull; the third end of the T-shaped long rotating arm is hinged with one end of each of the two first transverse pull rods, the other end of each of the two first transverse pull rods is hinged with one of the two first sliding tables, the third end of the T-shaped short rotating arm is hinged with one end of each of the two second transverse pull rods, and the other end of each of the two second transverse pull rods is hinged with the two three-position sliding tables; and two ends of the damping structure are respectively connected with the two fourth modules. The invention solves the problem of the holding strength of the guide structure, and obviously reduces the internal load.
Description
Technical Field
The invention belongs to the field of medium-low speed magnetic levitation vehicles, and particularly relates to a guide structure suitable for a four-module suspension frame.
Background
The guide mechanism is a special structure of the medium-low speed magnetic levitation vehicle. The guide mechanism mainly comprises a long rotating arm, a short rotating arm, two long pull rods and four transverse pull rods. The two ends of the four transverse pull rods are respectively hinged with the sliding table and the long and short rotating arms, the two ends of the long pull rod are respectively hinged with the long rotating arms and the short rotating arms, the long and short rotating arms are fixedly connected with the vehicle body, and a bearing structure is arranged in the long and short rotating arms, so that the rotating arms can rotate relative to the vehicle body around a bearing, and a deformable parallelogram is formed by the long and short rotating arms and the two long pull rods. Fig. 1 is a schematic diagram of a vehicle guide mechanism of a five-module suspension frame, and two sets of guide mechanisms are respectively hinged with a one-position sliding table 1, a three-position sliding table 2, a four-position sliding table 2A and a six-position sliding table 3A. Wherein two position slip tables 1A and five position slip tables 3 are fixed slip tables. When a vehicle passes through a curve or bears large transverse force, the five modules (10, 11, 12,13, 14) slide relative to the vehicle body to drive the transverse pull rods (4,8) to deform the parallelogram structure, so that the transverse force borne by the vehicle is uniformly transmitted to each module, and the curve trafficability and the crosswind resistance of the vehicle are improved.
The guide structure is well applied to the five-module suspension frame vehicle, and particularly when the five-module suspension frame vehicle bears large transverse wind, transverse force borne by each module of the five-module suspension frame vehicle is very uniform. However, when the guide structure is applied to a four-module suspension frame vehicle, many problems exist, as shown in fig. 2, in the four-module suspension frame vehicle, the one-position sliding table 1, the three-position sliding table 2 and the five-position sliding table 3 are sliding tables, the two-position sliding table 1A and the four-position sliding table 2A are fixed sliding tables, and at this time, the short rotating arms of the front and rear guide mechanisms are connected with the three-position sliding table 2, that is, the front and rear guide mechanisms have strong displacement coupling. The unique installation position of the guide mechanism in the four-module suspension frame vehicle leads to the obvious force-building condition in the front and the rear guide mechanisms when the vehicle is in a too small curve. Simulation calculation shows that when the vehicle is in a too small curve, the internal loads of the two transverse pull rods connected with the three-position sliding table 2 are large, but the directions of the transverse forces transmitted by the two transverse pull rods are opposite, so that the transverse force actually transmitted to the three-position sliding table 2 is small. Compared with a five-module suspension frame vehicle, under the same small curve working condition, the load at the rotating arm of the guide mechanism of the four-module suspension frame vehicle is multiplied, so that the probability of abnormal conditions such as eccentric wear, abnormal sound, clamping stagnation and the like at the rotating arm is increased.
Disclosure of Invention
The invention aims to provide a guide structure suitable for a four-module suspension frame, so as to ensure good curve passing capacity of a vehicle, ensure small internal load of the guide structure and solve the problems of eccentric wear, abnormal sound, clamping stagnation and the like at a rotating arm.
In order to achieve the purpose, the invention adopts the technical scheme that: a guide structure suitable for a four-module suspension frame is characterized in that two sides of the guide structure respectively comprise a first sliding table to a fifth sliding table which are longitudinally arranged, wherein the first sliding table, the third sliding table and the fifth sliding table are movable sliding tables, and the second sliding table and the fourth sliding table are fixed sliding tables; the first sliding table to the fifth sliding table are sequentially connected through a first module to a fourth module, the guide structure further comprises a guide mechanism and a damping structure which are symmetrically arranged along a longitudinal central line, the guide mechanism comprises a T-shaped long rotating arm, a T-shaped short rotating arm, two long pull rods, two first transverse pull rods and two second transverse pull rods, and two transverse end parts of the T-shaped long rotating arm and two transverse end parts of the T-shaped short rotating arm are connected through the two long pull rods to form a parallelogram structure; the third end of the T-shaped long rotating arm is hinged with one end of each of the two first transverse pull rods, the other end of each of the two first transverse pull rods is hinged with one of the two first sliding tables, the third end of the T-shaped short rotating arm is hinged with one end of each of the two second transverse pull rods, and the other end of each of the two second transverse pull rods is hinged with the two three-position sliding tables; and two ends of the damping structure are respectively connected with the two fourth modules.
In the scheme, when the four-module suspension frame magnetic suspension vehicle enters and exits a small curve, the problem that the guide mechanism is held back is fundamentally solved because the guide mechanism is only arranged between the one-position sliding table and the three-position sliding table, so that the internal load at the rotating arm is obviously reduced, and the problems of eccentric wear, abnormal sound, clamping stagnation and the like at the rotating arm are solved. Meanwhile, the five-position sliding table is not connected with the guide mechanism and is in a relatively free state, so that the damping structure can effectively absorb the transverse vibration energy of the suspension frame, the transverse stability of the end portion suspension frame is improved at a lower cost, and the problem of large displacement stroke of the five-position sliding table is avoided.
Preferably, the damping structure adopts a hydraulic damper.
Preferably, the damping structure is connected with the end part of the fourth module, which is close to the five-position sliding table, so that the transverse stability of the suspension frame is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. when the four-module suspension frame vehicle enters and exits a small curve, the problem of the holding strength of the guide structure is fundamentally solved, and the internal load of the guide structure is obviously reduced and even smaller than that of the guide mechanism in the five-module suspension frame magnetic suspension vehicle under the same working condition;
2. the damping structure can effectively absorb the transverse vibration of the suspension bracket, improve the transverse stability of the end suspension bracket with lower cost and effectively solve the problem of transverse instability;
3. the guide structure is only provided with one set of guide mechanism, so that the weight and the cost are reduced, the excellent small curve passing performance is met, and the design requirement of 8-level crosswind in a straight line section is met.
Drawings
FIG. 1 is a schematic view of a prior art guide structure for a five-module suspension;
FIG. 2 is a schematic view of the guide mechanism of FIG. 1 applied to a four-module suspension;
FIG. 3 is a schematic view of a guide structure of the present invention;
FIG. 4 is a schematic view of the guide structure of the present invention through a curve;
figure 5 is a schematic view of the guide structure of the present invention when the straight section is subjected to a cross wind.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
A guide structure suitable for a four-module suspension frame is disclosed, as shown in figures 3-5, two sides of the guide structure respectively comprise a one-position sliding table 1 to a five-position sliding table 3 which are longitudinally arranged, wherein the one-position sliding table 1, the three-position sliding table 2 and the five-position sliding table 3 are movable sliding tables, and the two-position sliding table 1A and the four-position sliding table 2A are fixed sliding tables; the one-position sliding table 1 to the five-position sliding table 3 are connected through a first module 10, a second module 11, a third module 12 and a fourth module 13, the guide structure further comprises a guide mechanism and a damping structure 9 which are symmetrically arranged along a longitudinal central line, the guide mechanism comprises a T-shaped long rotating arm 5, a T-shaped short rotating arm 7, two long pull rods 6, two first transverse pull rods 4 and two second transverse pull rods 8, and two transverse end parts of the T-shaped long rotating arm 5 and two transverse end parts of the T-shaped short rotating arm 7 are connected through the two long pull rods 6 to form a parallelogram structure; the third end of the T-shaped long rotating arm 5 is hinged with one end of two first transverse pull rods 4, the other end of each first transverse pull rod 4 is hinged with one of the two first-position sliding tables 1, the third end of the T-shaped short rotating arm 7 is hinged with one end of each second transverse pull rod 8, and the other end of each second transverse pull rod 8 is hinged with the two three-position sliding tables 2; the two ends of the damping structure 9 are connected to two fourth modules 13, respectively. Wherein, the longitudinal direction is the length direction of the suspension frame, and the transverse direction is the width direction of the suspension frame.
In this embodiment, the damping structure 9 may be a hydraulic damper.
As shown in fig. 4, when the four-module suspension rack magnetic levitation vehicle enters a curve, the first module 10 firstly enters the curve, the first sliding table 1 is driven by the air spring, the first sliding table 1 enables the T-shaped long rotating arm 5 to rotate through the first transverse pull rod 4, the T-shaped long rotating arm 5 drives the T-shaped short rotating arm 7 to rotate through the action of the long pull rod 6, and the T-shaped short rotating arm 7 transmits a transverse force to the three-position sliding table 2 through the second transverse pull rod 8. Through the process, the guiding force required by vehicle steering is transmitted by the unilateral one-position sliding table, the three-position sliding table, the two-position sliding table and the four-position sliding table of the vehicle, and the good curve passing capacity of the vehicle is ensured. Because the strong coupling relation between the guide mechanisms does not exist, the internal load of the guide mechanisms is very small, and the problems of eccentric wear, abnormal sound, clamping stagnation and the like at the rotating arm are better solved.
As shown in fig. 5, when the four-module suspension frame is subjected to cross wind in the straight line segment, the vehicle firstly generates transverse displacement relative to the track, and the T-shaped long rotating arm 5 and the T-shaped short rotating arm 7 connected with the vehicle transmit transverse force to the one-position sliding table 1 and the three-position sliding table 2 through the first transverse pull rod 4 and the second transverse pull rod 8 due to the transverse displacement. Based on the moment balance principle borne by the T-shaped long rotating arm 5 and the T-shaped short rotating arm 7, a parallelogram formed by the T-shaped long and short rotating arms and the long pull rod 6 deforms to a certain extent. Through simulation analysis, the four-module suspension frame vehicle meets the condition of normal operation under eight-level crosswind by adopting the guide structure. In addition, the damping structure 9 of the fourth modules 13 connected with the two ends of the suspension frame effectively absorbs the transverse vibration of the suspension frame below the five-position sliding table 3, so that the transverse stability of the end part of the suspension frame is improved at lower cost, and the problem that the displacement stroke of the five-position sliding table 3 at the end part is larger is avoided.
Claims (3)
1. A guide structure suitable for a four-module suspension frame is characterized in that one-position sliding tables (1) to five-position sliding tables (3) are longitudinally arranged on two sides of the guide structure, wherein the one-position sliding table (1), the three-position sliding table (2) and the five-position sliding table (3) are movable sliding tables, and the two-position sliding table (1A) and the four-position sliding table (2A) are fixed sliding tables; the device comprises a first sliding table (1) and a fifth sliding table (3), and is characterized in that the first sliding table (1) and the fifth sliding table (3) are sequentially connected through a first module (10) and a fourth module (13), the guide structure further comprises a guide mechanism and a damping structure (9) which are symmetrically arranged along a longitudinal central line, the guide mechanism comprises a T-shaped long rotating arm (5), a T-shaped short rotating arm (7), two long pull rods (6), two first transverse pull rods (4) and two second transverse pull rods (8), and two transverse end parts of the T-shaped long rotating arm (5) and two transverse end parts of the T-shaped short rotating arm (7) are connected through the two long pull rods (6) to form a parallelogram structure; the third end of the T-shaped long rotating arm (5) is hinged with one end of each of two first transverse pull rods (4), the other end of each of the two first transverse pull rods (4) is hinged with one of the two first-position sliding tables (1), the third end of the T-shaped short rotating arm (7) is hinged with one end of each of two second transverse pull rods (8), and the other end of each of the two second transverse pull rods (8) is hinged with one of the two three-position sliding tables (2); and two ends of the damping structure (9) are respectively connected with the two fourth modules (13).
2. The guiding structure for a four-module suspension according to claim 1, wherein the damping structure (9) is a hydraulic damper.
3. The guide structure for a four-module suspension frame as claimed in claim 1, wherein the damping structure (9) is connected with the end of the fourth module (13) close to the five-position sliding table (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836421.3A CN111976773B (en) | 2020-08-19 | 2020-08-19 | Guide structure suitable for four-module suspension frame |
| PCT/CN2020/130995 WO2022036907A1 (en) | 2020-08-19 | 2020-11-24 | Guide structure suitable for four-module suspension frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836421.3A CN111976773B (en) | 2020-08-19 | 2020-08-19 | Guide structure suitable for four-module suspension frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111976773A true CN111976773A (en) | 2020-11-24 |
| CN111976773B CN111976773B (en) | 2021-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010836421.3A Active CN111976773B (en) | 2020-08-19 | 2020-08-19 | Guide structure suitable for four-module suspension frame |
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| Country | Link |
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| CN (1) | CN111976773B (en) |
| WO (1) | WO2022036907A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11321635A (en) * | 1998-05-08 | 1999-11-24 | Mitsubishi Heavy Ind Ltd | Suspension device for guide track vehicle |
| CN202016407U (en) * | 2010-12-17 | 2011-10-26 | 南车株洲电力机车有限公司 | Forced steering mechanism |
| CN206900196U (en) * | 2017-06-02 | 2018-01-19 | 中车株洲电力机车有限公司 | A kind of levitation train system and its guide frame |
| CN110588361A (en) * | 2019-09-29 | 2019-12-20 | 同济大学 | Medium-low speed magnetic levitation traveling mechanism |
| CN111332131A (en) * | 2020-05-07 | 2020-06-26 | 中车长春轨道客车股份有限公司 | Forced guide mechanism for medium-low speed magnetic suspension vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174218A (en) * | 1967-11-02 | 1992-12-29 | Railway Engineering Associates, Inc. | Self-steering trucks with side bearings supporting the entire weight of the vehicle |
| CN107444191B (en) * | 2017-06-28 | 2020-06-16 | 中车青岛四方机车车辆股份有限公司 | Magnetic suspension vehicle and forced guiding mechanism thereof |
| CN109131409B (en) * | 2017-12-15 | 2024-03-08 | 北京维时正喜科技有限公司 | Single-axle bogie of straddle type monorail vehicle suitable for inverted T-shaped track beam |
-
2020
- 2020-08-19 CN CN202010836421.3A patent/CN111976773B/en active Active
- 2020-11-24 WO PCT/CN2020/130995 patent/WO2022036907A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11321635A (en) * | 1998-05-08 | 1999-11-24 | Mitsubishi Heavy Ind Ltd | Suspension device for guide track vehicle |
| CN202016407U (en) * | 2010-12-17 | 2011-10-26 | 南车株洲电力机车有限公司 | Forced steering mechanism |
| CN206900196U (en) * | 2017-06-02 | 2018-01-19 | 中车株洲电力机车有限公司 | A kind of levitation train system and its guide frame |
| CN110588361A (en) * | 2019-09-29 | 2019-12-20 | 同济大学 | Medium-low speed magnetic levitation traveling mechanism |
| CN111332131A (en) * | 2020-05-07 | 2020-06-26 | 中车长春轨道客车股份有限公司 | Forced guide mechanism for medium-low speed magnetic suspension vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111976773B (en) | 2021-12-17 |
| WO2022036907A1 (en) | 2022-02-24 |
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