阅读说明：本技术 一种用于轨道交通的翻转式道岔 (Turnover turnout for rail transit ) 是由 朱志伟 曾国锋 叶丰 王国强 袁亦竑 罗华军 张杨 于 2020-12-29 设计创作，主要内容包括：本发明涉及一种用于轨道交通的翻转式道岔,包括多个道岔节段,每个道岔节段包括轨道梁组、支承横梁、翻转机构和锁定支撑机构。轨道梁组包括分别固定在支承横梁多个侧表面上的轨道梁,支承横梁固定在轨道梁组的端部,翻转机构和锁定支撑机构固定在地面上,翻转机构包括旋转轴,通过旋转轴与支承横梁连接,锁定支撑机构包括锁定轴,通过锁定轴与支承横梁中的锁销孔进行卡合从而锁定支承横梁和翻转机构,通过旋转支承横梁,多个道岔节段的轨道梁组进行连接形成直线线路或曲线线路,实现列车的换线。与现有技术相比,本发明具有避免主梁承受弹性侧弯应力、保证轨道曲线线形良好、确保列车通过道岔舒适等优点。(The invention relates to a turnover turnout for rail transit, which comprises a plurality of turnout segments, wherein each turnout segment comprises a rail beam group, a supporting cross beam, a turnover mechanism and a locking support mechanism. The track beam set is including fixing the track roof beam on a plurality of side surfaces of supporting beam respectively, the tip at track beam set is fixed to the supporting beam, tilting mechanism and locking supporting mechanism are fixed subaerial, tilting mechanism includes the rotation axis, be connected with the supporting beam through the rotation axis, locking supporting mechanism includes the locking axle, thereby carry out the block through the locking axle and the lockpin hole in the supporting beam and lock supporting beam and tilting mechanism, through rotatory supporting beam, the track beam set of a plurality of switch sections is connected and is formed sharp circuit or curve circuit, realize the lane change of train. Compared with the prior art, the invention has the advantages of avoiding the main beam from bearing elastic lateral bending stress, ensuring good track curve line shape, ensuring comfortable train passing turnout and the like.)

1. A turnover turnout for rail transit, which is characterized by comprising a plurality of turnout segments (1), wherein each turnout segment (1) comprises a rail beam set (2), a supporting beam (3), a turnover mechanism (4) and a locking support mechanism (5), the rail beam set (2) comprises rail beams which are respectively fixed on a plurality of side surfaces of the supporting beam (3), the supporting beam (3) is fixed at the end part of the rail beam set (2), the turnover mechanism (4) and the locking support mechanism (5) are fixed on the ground, the turnover mechanism (4) comprises a rotating shaft (4-2) which is connected with the supporting beam (3) through the rotating shaft (4-2), the locking support mechanism (5) comprises a locking shaft (5-2) which is clamped with a locking pin hole (3-2) in the supporting beam (3) through the locking shaft (5-2) so as to lock the supporting beam (3) and the turnover mechanism (4), the track beam groups of the turnout sections (1) are connected to form a linear line or a curved line by rotating the supporting beam (3), so that the line change of the train is realized.

2. The overturning switch for rail transit according to claim 1, characterized in that said set of rail beams (2) comprises in particular rectilinear rail beams (2-11), left-turn rail beams (2-21) and right-turn rail beams (2-31) respectively fixed on 3 side surfaces of the supporting cross-beam (3).

3. The turnover turnout junction for rail transit according to claim 2, wherein the linear rail beam (2-11), the left-turn rail beam (2-21) and the right-turn rail beam (2-31) are respectively provided with a linear rail (2-12), a left-turn rail (2-22) and a right-turn rail (2-32).

4. The turnover turnout junction for rail transit according to claim 3, characterized in that the main beam of the linear rail beam (2-11) is a straight beam, and the rail shape of the linear rail (2-12) is a straight line; the main beams of the left-turn track beams (2-21) and the right-turn track beams (2-31) are straight beams or curved beams, and the track shapes of the left-turn tracks (2-22) and the right-turn tracks (2-32) are curves.

5. The roll-over switch for rail transit according to claim 1, characterized in that the supporting beam (3) is further provided with mounting holes in which internal gears (3-1) are provided.

6. The turnover turnout junction for rail transit according to claim 5, wherein the number of the locking pin holes (3-2) is 4, and the locking pin holes are arranged at four corners of the mounting hole at equal intervals.

7. The roll-over turnout for rail transit according to claim 6, wherein the distance from the central line of the internal gear (3-1) to the beam surface of each rail beam is equal, and the distance from the central line of 4 locking pin holes (3-2) to the beam bottom of the adjacent rail beam is equal.

8. A turnover switch for rail traffic according to claim 5, characterised in that the turnover mechanism (4) also comprises a drive motor (4-1) and a transmission, in particular a drive gear (4-3), which drive gear (4-3) meshes with the internal gear (3-1) of the supporting beam (3).

9. The roll-over switch for rail transit according to claim 8, characterized in that the number of the rotating shafts (4-2) is 2, the same as the number of the supporting beams (3), and the rotating shafts (4-2) are fixed to the driving motor (4-1) and located on the same straight line.

10. The turnover type turnout junction for rail transit according to claim 1, characterized in that the number of the locking support mechanisms (5) is 2, the locking support mechanisms are positioned below the rotating shaft (4-1) of the turnover mechanism (4), the turnover type turnout junction further comprises a locking motor (5-1) and locking boxes (5-3), the locking boxes (5-3) are fixed on the locking motor (5-1), and each locking box (5-3) is internally provided with 2 locking shafts (5-2).

Technical Field

The invention belongs to the field of rail transit, relates to a turnout for changing a track of a rail transit vehicle, and particularly relates to a turnout suitable for a traffic system such as high-speed magnetic levitation traffic, low-speed magnetic levitation traffic, light magnetic levitation traffic and single-track encircling track running.

Background

One of the main features of the traffic systems is that the vehicle runs around the track. For the traffic system, the turnout structure for providing support and guide functions for vehicles not only comprises a track, but also comprises a main beam for supporting the track. In order to connect different train operation lines, the turnout track structure mainly realizes the function of connecting tracks with different line positions in two types of straight simulated curves through integral elastic lateral bending and segmentation.

The main beam of the integral elastic side-bending turnout is of an integral structure, and external force is applied to the specific fulcrum position of the main beam, so that the turnout is elastically bent in a plane and meets the linear requirement of a designed curve. At present, the integral elastic side-bending turnout is used for high-speed magnetic suspension traffic. In the prior art, a turnout main beam of an integral elastic side-bending turnout is a multi-span continuous steel beam, one end fulcrum is longitudinally fixed through a rotating support, the other fulcrums are supported through a movable cross beam, under the action of a transverse moving driving mechanism, the turnout main beam is elastically bent in a plane, and after the turnout main beam reaches the position near a specified line, the main beam is ensured to be kept at a specific linear position through a locking system.

The main beam of the straight simulated curve turnout is used as a sectional type in the subsection, external force is applied to enable each section to rotate in a plane, and each section meets the linear requirement of a designed curve through the straight simulated curve. At present, the sectional type is used for medium-low speed magnetic suspension traffic and monorail by using a straight simulated turnout. In the prior art, a turnout main beam for segmenting a straight and curved turnout consists of 3 beam segments, wherein one beam is a driving beam, and the rest beams are driven beams; a driving mechanism is arranged on the driving beam, a shifting fork mechanism is arranged between the driving beam and the driven beam, and each beam section is provided with a transverse moving system; the driving mechanism enables the driving beam to rotate around the fixed pivot in the plane and drives the driven beam to rotate, so that connection of different lines is achieved.

The integral elastic lateral-bending turnout has the advantages that: when the turnout is in the side line position, the track line is a continuous curve, the smoothness is good, the passing stability of the train is good, and the riding comfort is high. The defects are as follows: when the turnout main beam is switched between different line positions, the turnout main beam bears larger bending stress and has fatigue risk; moreover, the turnout main beam needs elastic lateral bending, so that the transverse rigidity is low, and torsional vibration is easy to occur.

The straight-way turnout is sectionally simulated, and the advantages are that: the turnout beam section is a linear beam, and the stress borne by the main beam is small. The defects are as follows: the linear shape of the curve position is realized in a straight-to-curved mode, when only a limited number of beam sections exist, the break angle between the beams is large, and the linear shape of the track is not smooth enough, so that the stability of train passing and the riding comfort are not good enough.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the turnover turnout for the rail transit, which can not only prevent a main beam from bearing elastic lateral bending stress, but also ensure smooth and linear rails at the curved positions.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a convertible switch for track traffic, includes a plurality of switch sections, and every switch section includes track beam set, supporting beam, tilting mechanism and locking supporting mechanism, track beam set is including fixing the track roof beam on a plurality of side surfaces of supporting beam respectively, the tip at track beam set is fixed to the supporting beam, tilting mechanism and locking supporting mechanism are fixed subaerial, and tilting mechanism includes the rotation axis, is connected with the supporting beam through the rotation axis, and locking supporting mechanism includes the locking axle, thereby carries out the block through the lockpin hole in locking axle and the supporting beam and locks supporting beam and tilting mechanism, through the rotation supporting beam, and the track beam set of a plurality of switch sections is connected and is formed sharp circuit or curved line, realizes changing the line of train.

The track beam group comprises a linear track beam, a left-turning track beam and a right-turning track beam which are respectively fixed on 3 side surfaces of the supporting cross beam.

Furthermore, a linear track, a left-turning track and a right-turning track are respectively arranged on the linear track beam, the left-turning track beam and the right-turning track beam.

Furthermore, the main beam of the linear track beam is a straight beam, and the track shape of the linear track is a straight line; the main beams of the left-turn track beam and the right-turn track beam are straight beams or curved beams, and the track shapes of the left-turn track and the right-turn track are curves, specifically curves required for the train to pass through, and specifically curves required for the train to pass through.

The supporting beam is also provided with a mounting hole, and an internal gear is arranged in the mounting hole.

Furthermore, the number of the locking pin holes is 4, and the locking pin holes are equidistantly arranged at four corners of the mounting hole.

Further, the distance from the central line of the internal gear to the beam surface of each track beam is equal, and the distance from the central line of the 4 lock pin holes to the beam bottom of the adjacent track beam is equal.

Furthermore, the turnover mechanism further comprises a driving motor and a transmission device, wherein the transmission device is specifically a driving gear, and the driving gear is meshed with an internal gear of the supporting beam.

Further, the number of the rotating shafts is 2, and the rotating shafts are the same as the number of the supporting beams, are fixed to the driving motor and are located on the same straight line.

The locking support mechanism is 2 in number and located below a rotating shaft of the turnover mechanism, the locking support mechanism further comprises a locking motor and locking boxes, the locking boxes are fixed on the locking motor, and each locking box is internally provided with 2 locking shafts.

Compared with the prior art, the invention has the following beneficial effects:

1. the main beams of the left-turn track beam and the right-turn track beam are straight beams or curved beams, so that elastic lateral bending stress cannot be generated, and the fatigue risk and torsional vibration of the turnout are reduced; meanwhile, the track shapes of the left-turn track and the right-turn track are curves required by the train to pass through, so that the train turnout junction is good in smoothness, and the train is ensured to pass through the turnout junction comfortably.

2. The locking and supporting mechanism simultaneously has the functions of locking and supporting turnouts, simplifies a mechanical system of the turnouts, simultaneously turns over a plurality of turnout sections when a track is changed, has low requirements on an electrical control system, and is simple and easy to control.

Drawings

FIG. 1 is a schematic view of the connection of multiple switch segments of the present invention;

FIG. 2 is a schematic structural view of a turnout segment of the present invention;

FIG. 3 is a schematic structural view of a support beam of the present invention;

fig. 4 is a schematic structural view of the turnover mechanism of the present invention.

Reference numerals:

1. a switch segment; 2. a track beam set; 3. a support beam; 4. a turnover mechanism; 5. a locking support mechanism; 2-11, a linear track beam; 2-12, linear track; 2-21, left-turn track beam; 2-22, left turn track; 2-31, turning right the track beam; 2-32. right turn track; 3-1, internal gear; 3-2, locking pin holes; 4-1, driving a motor; 4-2. a rotating shaft; 4-3, driving the gear; 5-1, locking the motor; 5-2, locking the shaft; 5-3. locking the box.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

A turnover turnout for rail transit, the rail beam can keep good line shape, and need not bear lateral bending stress, comprises a plurality of turnout sections 1, each turnout section 1 comprises a rail beam group 2, a supporting beam 3, a turnover mechanism 4 and a locking support mechanism 5, the rail beam group 2 comprises rail beams respectively fixed on 3 side surfaces of the supporting beam 3, the supporting beam 3 is fixed on the end part of the rail beam group 2, the turnover mechanism 4 and the locking support mechanism 5 are fixed on the ground, the turnover mechanism 4 comprises a rotating shaft 4-2 connected with the supporting beam 3 through the rotating shaft 4-2, the locking support mechanism 5 comprises a locking shaft 5-2, the supporting beam 3 and the turnover mechanism 4 are locked through the clamping of the locking shaft 5-2 and a locking pin hole 3-2 in the supporting beam 3, through rotating the supporting beam 3, the track beam groups of the turnout sections 1 are connected to form a linear line or a curve line, so that the line change of the train is realized.

The track beam group 2 specifically includes linear track beams 2-11, left-turn track beams 2-21, and right-turn track beams 2-31 fixed to the side surfaces of the supporting cross member 33, respectively.

The linear track beam 2-11, the left-turning track beam 2-21 and the right-turning track beam 2-31 are respectively provided with a linear track 2-12, a left-turning track 2-22 and a right-turning track 2-32.

The main beam of the linear track beam 2-11 is a straight beam, and the track shape of the linear track 2-12 is a straight line; the main beams of the left-turn track beams 2-21 and the right-turn track beams 2-31 are straight beams or curved beams, and the track shapes of the left-turn tracks 2-22 and the right-turn tracks 2-32 are curves.

The supporting beam 3 is also provided with a mounting hole, and an internal gear 3-1 is arranged in the mounting hole.

The number of the locking pin holes 3-2 is 4, and the locking pin holes are equidistantly arranged at four corners of the mounting hole.

The distance from the central line of the internal gear 3-1 to the beam surface of each track beam is equal, and the distance from the central line of the 4 lock pin holes 3-2 to the beam bottom of the adjacent track beam is equal.

The turnover mechanism 4 further comprises a driving motor 4-1 and a transmission device, wherein the transmission device is a driving gear 4-3, and the driving gear 4-3 is meshed with an internal gear 3-1 of the supporting beam 3.

The number of the rotating shafts 4-2 is 2, which is the same as that of the supporting beams 3, and the rotating shafts 4-2 are fixed to the driving motor 4-1 and are positioned on the same straight line.

The number of the locking support mechanisms 5 is 2, the locking support mechanisms are positioned below a rotating shaft 4-1 of the turnover mechanism 4, the locking support mechanisms further comprise locking motors 5-1 and locking boxes 5-3, the locking boxes 5-3 are fixed on the locking motors 5-1, and 2 locking shafts 5-2 are arranged in each locking box 5-3.

Examples

After the locking pin motor 5-1 and the driving motor 4-1 of each turnout segment 1 receive a work instruction, the locking shaft 5-2 is simultaneously retracted into the locking box 5-3, each driving motor 4-1 is simultaneously started to drive the rotating shaft 4-2 and the driving gear 4-3 to rotate, the driving gear 4-3 is meshed with an internal gear 3-1 arranged on the supporting beam 3, the supporting beam 3 and the track beam group 2 rotate around the central line of the driving gear 4-3, and after the appointed track beam is overturned to a line plane, the locking shaft 5-2 simultaneously extends out of the locking box 5-3 to play a role in locking and supporting the turnout segment 1, so that the track beam group 2 is ensured to be stably supported and locked at the appointed position.

The turnout sections 1 can be provided with two or three track beams according to the design requirement of a line, and the number of the turnout sections 1 is set according to the requirement; the main beam of the turnout section 1 can be turned over without turning over, and only the rail on the main beam is turned over.

In addition, it should be noted that the specific embodiments described in the present specification may have different names, and the above descriptions in the present specification are only illustrations of the structures of the present invention. Minor or simple variations in the structure, features and principles of the present invention are included within the scope of the present invention. Various modifications or additions may be made to the described embodiments or methods may be similarly employed by those skilled in the art without departing from the scope of the invention as defined in the appending claims.