CN112744256B - Lifting type track-changing device - Google Patents
Lifting type track-changing device Download PDFInfo
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- CN112744256B CN112744256B CN201911055598.3A CN201911055598A CN112744256B CN 112744256 B CN112744256 B CN 112744256B CN 201911055598 A CN201911055598 A CN 201911055598A CN 112744256 B CN112744256 B CN 112744256B
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- swing arm
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- upper swing
- transmission shaft
- track
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- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 230000002441 reversible effect Effects 0.000 claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims description 57
- 238000012546 transfer Methods 0.000 claims description 29
- 230000008093 supporting effect Effects 0.000 claims description 27
- 230000009471 action Effects 0.000 abstract description 14
- 230000008859 change Effects 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
- B61L5/065—Construction of driving mechanism
Abstract
The invention relates to a lifting type rail changing device, which comprises a power part and a reverse synchronization mechanism, wherein rail changing parts matched with turnouts are respectively arranged on two sides of the reverse synchronization mechanism, the power part is used for driving the reverse synchronization mechanism to act, the reverse synchronization mechanism is used for driving one side of the rail changing part to ascend and be matched with the corresponding turnout, and the other side of the rail changing part descends synchronously and is far away from the corresponding turnout; the track-changing device provided by the invention has the advantages of relatively simple structure, simpler action mode, more convenient control, shorter time required by single action and higher action efficiency, can guide a vehicle to pass through a fork and realize track change at the fork, and is beneficial to the diversification of the structure and the form of the track-changing device so as to meet market demands.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a lifting type rail transfer device.
Background
Rail transit is a type of transportation means or transportation system running on a specific rail, and with the development of technology, the rail transit is of more and more types, and suspended rail transit is a novel rail transit; the suspended track traffic generally comprises a track, a vehicle (locomotive) arranged on the track and a car connected with the vehicle and suspended below the track, wherein the track is generally erected in the air, and the vehicle walks along the track so as to drive the car to move forwards; in order to facilitate safe and stable passing of vehicles through railway turnouts and accurate realization of the vehicles, the vehicles are provided with rail changing devices, rail changing wheels are usually arranged on the rail changing devices, turnouts are usually arranged in the railway turnouts, and when the vehicles run to the turnouts, the vehicles are guided to pass through the turnouts or realize rail changing at the turnouts through the cooperation of the rail changing wheels and the turnouts in the rail changing devices.
The conventional rail-changing device in the prior art generally has some defects, for example, 1, the conventional rail-changing device has insufficient structural forms, the rail-changing device with various structural forms needs to be developed so as to meet the market demands, 2, in the conventional rail-changing device, the rail-changing wheel is generally arranged on a swing arm or a component similar to the swing arm, and the swing arm/component is generally driven to swing or rotate by a driving motor, so that the rail-changing wheel swings or rotates to a preset position, for example, in a rail-changing structure disclosed in chinese patent CN110143205a, the rail-changing wheel can swing to the preset position under the control of the driving motor, and in a rail-changing structure disclosed in chinese patent CN 203996231U, the rail-changing wheel can rotate to the preset position … … under the control of the driving motor through swinging or rotating to drive the rail-changing wheel to move in place, although the rail-changing function can be realized, the structure is relatively complex, and the control difficulty is relatively high.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a lifting type rail changing device which is relatively simple in structure and convenient to control, and the lifting type rail changing device not only can guide a vehicle to pass through a fork and realize rail changing at the fork, but also is beneficial to diversification of structural forms of the rail changing device so as to adapt to market demands.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a lifting type track-changing device, includes power division and reverse synchro mechanism, reverse synchro mechanism's both sides are provided with the track-changing portion with switch looks adaptation respectively, power division is used for the drive reverse synchro mechanism action, reverse synchro mechanism are used for driving the track-changing portion of one side to rise to cooperate with corresponding switch, the track-changing portion of opposite side descends in step, and keeps away from corresponding switch. In the scheme, the rail changing device drives the reverse synchronization mechanism to act through the power part, so that rail changing parts arranged on two sides of the reverse synchronization mechanism can synchronously act, and the acting directions are always opposite, namely, one rail changing part ascends, the rail changing part on the other side descends, and the rail changing part ascending in place can be matched with a turnout on the corresponding side so as to be capable of advancing under the guidance of the turnout, at the moment, the rail changing part on the side is in a working state, and the rail changing part descending in place is positioned at a position far away from the turnout on the corresponding side (usually below the turnout) and cannot be matched with the turnout, so that the rail changing device is in a non-working state; therefore, at the turnout, only one side of the track-changing part is matched with the turnout, so that the vehicle can be guided to continue to move forward at the turnout or track-changing can be realized, and the vehicle can smoothly pass through the turnout; in addition, the lifting type track-changing device provided by the scheme is far smaller than the prior art in required power and lower in precision requirement, so that the realization difficulty and cost are reduced more favorably, and the specific implementation is facilitated more favorably.
Preferably, the reverse synchronization mechanism comprises an upper swing arm, a lower swing arm and two connecting rods, the two connecting rods are respectively and vertically arranged, the track changing parts are respectively arranged on the two connecting rods, two ends of the upper swing arm and the lower swing arm are respectively hinged to the two connecting rods, and four hinged positions are respectively positioned at four vertexes of a parallelogram; the middle parts of the upper swing arm and the lower swing arm respectively form a revolute pair with the supporting seat, and the power part is used for driving the upper swing arm and/or the lower swing arm to rotate around the middle part of the upper swing arm and/or the lower swing arm. In this scheme, the upper swing arm, the lower swing arm and the two connecting rods can form a parallelogram mechanism (i.e. the motion diagram is a parallelogram), the track changing parts on the two sides are respectively arranged on the two connecting rods, the two connecting rods are respectively vertically arranged, the middle parts of the upper swing arm and the middle parts of the lower swing arm are restrained by the supporting seat, so that the middle parts of the upper swing arm and the lower swing arm do not move and only rotate, when the power part drives the upper swing arm or the lower swing arm to rotate, the upper swing arm and the lower swing arm can respectively synchronously rotate around the middle parts of the upper swing arm and the lower swing arm, so that one connecting rod can ascend to drive the track changing part arranged on the upper swing arm and the lower swing arm to synchronously ascend so as to be matched with the corresponding turnout, and the other connecting rod can synchronously descend so as to drive the track changing part arranged on the upper swing arm and the lower swing arm to synchronously descend so as to be away from the corresponding turnout; in addition, compare in current rail transfer device, the rail transfer device that adopts this scheme to provide, action resistance is little to make the required power of action process far less than prior art, moreover, the rail transfer device of adopting this kind of structure, the requirement to the precision is low, because even under the condition of low accuracy, also can be smooth accomplish the rail transfer action, and cooperate with the switch, thereby be favorable to reducing this rail transfer device processing, the assembly degree of difficulty, make the cost lower.
Preferably, the upper swing arm, the lower swing arm and the connecting rod are respectively provided with a hinge hole, a bearing or a rubber sleeve is arranged in the hinge hole on the connecting rod, and the hinge shaft is hinged by being matched with the bearing or the rubber sleeve. Namely, the connecting rod is hinged with the upper swing arm and the lower swing arm through the bearings or the rubber sleeves, so that the hinging effect is enhanced, and particularly when the rubber sleeves are adopted, the effects of buffering and damping can be achieved when accidental collision occurs, and the details are omitted.
Further, the device also comprises a transmission shaft and a supporting shaft, wherein the transmission shaft is fixedly connected to the middle part of the upper swing arm, the supporting shaft is fixedly connected or movably connected to the middle part of the lower swing arm, or the transmission shaft is fixedly connected to the middle part of the lower swing arm, the supporting shaft is fixedly connected or movably connected to the middle part of the upper swing arm, the transmission shaft and/or the supporting shaft are/is respectively fixed to a frame of a vehicle through a supporting seat, and the power part is used for driving the transmission shaft to rotate around the central axis of the power part. In this scheme, for realizing the rotation of swing arm and lower swing arm, restraint upper and lower swing arm through transmission shaft and back shaft for upper and lower swing arm's middle part position does not change, thereby make when power portion drive transmission shaft rotates, upper swing arm and lower swing arm rotate around transmission shaft or back shaft at middle part respectively, thereby make one connecting rod in two connecting rods can rise, thereby drive the track section synchronous rising that sets up on it, so as to cooperate with corresponding switch, another connecting rod can descend in step, thereby drive the track section synchronous decline that sets up on it, so as to keep away from corresponding switch.
Further, the device also comprises a transmission part, one end of the transmission part is connected with the power part, the other end of the transmission part is connected with the transmission shaft, and the transmission part is used for transmission. So that the position of the power part is flexibly arranged, and the whole track-changing device is more compact in structure.
Preferably, the supporting seat is a bearing seat.
Preferably, the power part adopts a motor.
Preferably, the upper swing arm and/or the lower swing arm are/is in one or a combination of a plurality of straight structures, bending structures or arc structures.
Further, the upper swing arm and/or the lower swing arm respectively comprise a first section and a second section which are symmetrically arranged, an included angle between the first section and the second section is an obtuse angle, the first section and the second section are respectively hinged with the two connecting rods, and when the track transfer part on one side moves in place, the first section or the second section corresponding to the side is positioned at a horizontal position. By adopting the design, derailment can be effectively prevented.
Preferably, the connecting rod is one or a combination of a plurality of straight rods, straight plates, bending rods, bending plates, arc-shaped rods and arc-shaped plates. The lower swing arm is not necessarily right below the upper swing arm, so that the structure of the connecting rod is more various.
Further, the torque limiter is arranged between the motor and the transmission shaft, and is used for transmitting torque, and when the transmitted torque is larger than the set torque, the torque limiter is disconnected to prevent the torque from being transmitted from one end of the torque limiter to the other end of the torque limiter. The problem of burning out the motor due to overload can be avoided, and the motor can be effectively protected.
Further, the synchronous machine comprises two reverse synchronous mechanisms and a synchronous shaft, wherein two ends of the synchronous shaft are respectively connected with the two reverse synchronous mechanisms and are used for enabling the two reverse synchronous mechanisms to synchronously act and have the same action. In this embodiment, through setting up two reverse synchro mechanism for the both sides of this track-change device are provided with two track-change portions respectively, and when passing the fork, two track-change portions of same side can synchronous action to cooperate with corresponding switch, thereby make the vehicle can be more steady pass the fork, avoid bumping with the track.
Preferably, two ends of the synchronizing shaft are respectively connected with an upper swing arm, a lower swing arm or a connecting rod on the same side in the two reverse synchronizing mechanisms, or one end of the synchronizing shaft is connected with a transmission shaft or a supporting shaft in one of the reverse synchronizing mechanisms, and the other end of the synchronizing shaft is connected with the transmission shaft or the supporting shaft in the corresponding position in the other reverse synchronizing mechanism.
Preferably, the track changing units are respectively arranged at the top of the connecting rod.
Preferably, the track changing part is a track changing wheel, and the track changing wheel is movably connected with a connecting rod in the reverse synchronous mechanism and is used for rotating around a central axis of the track changing wheel when the track changing wheel contacts with the turnout. The rail changing wheel can walk along the turnout matched with the rail changing wheel to realize rolling contact, thereby being beneficial to reducing resistance and abrasion.
Compared with the prior art, the lifting type rail changing device provided by the invention has the advantages that the structure is relatively simple, the action mode is simpler, the control is more convenient, the time required by single action is shorter, the action efficiency is higher, the vehicle can be guided to pass through the turnout and realize rail changing at the turnout, and the structure and the form of the rail changing device are diversified, so that the market demand is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a lifting rail transfer device according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a lifting rail transfer device according to embodiment 1 of the present invention.
Fig. 3 is a front view of fig. 1.
Fig. 4 is a schematic cross-sectional view of a rail when a fork is engaged with a switch, in which a right-side rail wheel is engaged with a right-side switch to move right.
Fig. 5 is a schematic cross-sectional view of a rail when a fork is engaged with a switch, in which a left side rail wheel is engaged with a left side switch to continue forward operation, according to the lifting rail device provided in embodiment 1 of the present invention.
Fig. 6 is a schematic structural diagram of a lifting rail transfer device according to embodiment 2 of the present invention.
Fig. 7 is a schematic structural diagram of a lifting rail transfer device according to embodiment 1 of the present invention.
Fig. 8 is a schematic structural diagram of an upper swing arm in the lifting rail transfer device provided in embodiment 1 of the present invention.
Fig. 9 is a side view of another lifting rail transfer apparatus provided in embodiment 1 of the present invention.
Description of the drawings
A motor 101, a torque limiter 102, a synchronizing shaft 103,
A reverse synchronization mechanism 200, an upper swing arm 201, a lower swing arm 202, a connecting rod 203, a hinge shaft 204, a rail wheel 205, a transmission shaft 206, a support shaft 207, a bearing seat 208, a first reverse synchronization mechanism 209, a second reverse synchronization mechanism 210,
A vehicle 300, a frame 301, travelling wheels 302,
Track 400, switch 401,
A first segment 501, a second segment 502, and a third segment 503.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Example 1
Referring to fig. 1, 2 and 3, the present embodiment provides a lifting track-changing device, which includes a power portion and a reverse synchronization mechanism 200, wherein two sides of the reverse synchronization mechanism 200 are respectively provided with a track-changing portion adapted to a switch 401, the power portion is used for driving the reverse synchronization mechanism 200 to act, the reverse synchronization mechanism 200 is used for driving one track-changing portion to rise and cooperate with a corresponding switch 401, and the other track-changing portion to synchronously descend and separate from the corresponding switch 401 so as not to interfere with cooperation of the other track-changing portion and the switch 401. In this embodiment, the rail transfer device drives the reverse synchronization mechanism 200 to act through the power part, so that the rail transfer parts arranged at two sides of the reverse synchronization mechanism 200 can synchronously act, and the acting directions are always opposite, that is, one rail transfer part ascends, the other rail transfer part descends, the ascending rail transfer part can be matched with the corresponding side turnout 401, so that the rail transfer part can move forward under the guidance of the turnout 401, at this time, the rail transfer part at the side is in an operating state, and the descending rail transfer part is at a position far away from the corresponding side turnout 401 (usually below the turnout 401) and cannot be matched with the turnout 401, and is in a non-operating state; thus, at the fork, only one side of the track change portion is engaged with the switch 401, so that the vehicle 300 can be guided to continue to move forward at the fork or track change can be realized, so as to smoothly pass through the fork.
It can be understood that the switch 401 in this embodiment may be an existing switch 401, such as a switch 401 disclosed in chinese patent CN 108313068A, a switch 401 disclosed in chinese patent CN 207498750U, a switch 401 disclosed in chinese patent CN 203996231U, a switch 401 disclosed in chinese patent CN 203558061U, and so on, which are not described herein.
As shown in fig. 3, in this embodiment, the rail-changing portions on two sides are lifted/lowered synchronously, which is beneficial to the compactness of the whole rail-changing device, saving space and more convenient for controlling the position of the rail-changing portion.
As an example, in a preferred solution, the reverse synchronization mechanism 200 includes an upper swing arm 201, a lower swing arm 202, and two connecting rods 203, the two connecting rods 203 are respectively disposed vertically, the track-changing units are respectively disposed on the two connecting rods 203, two ends of the upper swing arm 201 and the lower swing arm 202 are respectively hinged to the two connecting rods 203, and four hinged positions are respectively located at four vertices of a parallelogram (i.e. connecting lines between two adjacent hinged positions form a parallelogram, such as a quadrilateral surrounded by dashed lines in fig. 3); the middle parts of the upper swing arm 201 and the lower swing arm 202 respectively form a revolute pair with the supporting seat, and the power part is used for driving the upper swing arm 201 and/or the lower swing arm 202 to rotate around the middle part of the upper swing arm and/or the lower swing arm 202, as shown in fig. 1, 2 and 3. That is, in this solution, the upper swing arm 201, the lower swing arm 202, and the two connecting rods 203 may form a parallelogram mechanism (i.e. the movement diagram is a parallelogram), and the track changing portions on the two sides are respectively disposed on the two connecting rods 203, the two connecting rods 203 are respectively disposed vertically, and the middle portions of the upper swing arm 201 and the middle portion of the lower swing arm 202 are restrained by using the supporting seat, so that the middle portions of the upper swing arm 202 and the lower swing arm 202 do not move and can only rotate, so that when the power portion drives the upper swing arm 201 or the lower swing arm 202 to rotate, the upper swing arm 201 and the lower swing arm 202 can respectively rotate synchronously around their own middle portions, so that one connecting rod 203 of the two connecting rods 203 can rise, thereby driving the track changing portion disposed thereon to rise synchronously so as to cooperate with the corresponding turnout 401, and the other connecting rod 203 can descend synchronously, thereby driving the track changing portion disposed thereon to descend synchronously so as to be away from the corresponding turnout 401.
It can be understood that, in this embodiment, the specific structures of the upper swing arm 201 and the lower swing arm 202 are not limited, because in this embodiment, only four hinge points formed by the upper swing arm 201, the lower swing arm 202 and the connecting rod 203 need to be ensured to enclose a parallelogram, in this case, the structures of the upper swing arm 201 and the lower swing arm 202 may be the same or different, and the upper swing arm 201 or the lower swing arm 202 may be one or a combination of a plurality of linear structures, a bent structure or an arc structure (such as a V-shaped structure, etc.), as an embodiment, as shown in fig. 1, fig. 2 or fig. 3, the upper swing arm 201 and the lower swing arm 202 respectively adopt a linear structure and respectively adopt two mutually parallel plates, which is beneficial to increasing rigidity; in another embodiment, the upper swing arm 201 and/or the lower swing arm 202 adopt a bending structure, as an example, as shown in fig. 7, the upper swing arm 201 and/or the lower swing arm 202 respectively comprise a first section 501 and a second section 502 which are symmetrically arranged, the included angle between the first section 501 and the second section 502 is an obtuse angle, the first section 501 and the second section 502 respectively form a hinge joint with the two connecting rods 203, the swing arm adopting the bending structure also has the effect of preventing derailment, in particular, the effect that when one side of the swing arm is in an upward movement and is in place, the swing arm (the first section 501 or the second section 502) is exactly in a horizontal position as shown in fig. 7, thereby being more convenient for the track change part to be matched with a corresponding side of the turnout, and pressing the turnout, and if the track change part on the side of the swing arm 201 is required to be separated from the turnout, the track change part moves downwards while being driven by the upper swing arm 201, and the track change part on the inner side can be moved downwards, as shown in the graph 7, thus the track change part is required to be prevented from being easily separated from the track change opening, and the track is easy to be easily separated from the track; the structures of the upper swing arm 201 and the lower swing arm 202 are not limited thereto, for example, the upper swing arm 201 and/or the lower swing arm 202 respectively include a first section 501, a second section 502 and a third section 503, where the first section 501 and the second section 502 are respectively symmetrically disposed at two ends of the third section 503 and respectively form a hinge with the connecting rod 203, the middle part of the third section 503 and the supporting seat form a revolute pair, and the first section 501, the second section 502 and the third section 503 may be an arc plate or a straight plate, as shown in fig. 8, in this scheme, the third section 503 is an arc plate, and the first section 501 and the second section 502 are all straight plates, which is favorable for enhancing the strength of the whole track-transferring device and improving the bearing capacity, and the structures of the upper swing arm 201 and the lower swing arm 202 are not illustrated herein.
Furthermore, it should be understood by those skilled in the art that in the solution provided in this embodiment, the lower swing arm 202 is not necessarily directly under the upper swing arm 201, as shown in fig. 9, and in another possible implementation, the lower swing arm 202 is not directly under the upper swing arm 201, where the connecting rod 203 has a bend or arc, so in this embodiment, the connecting rod 203 may be a straight rod (as shown in fig. 1-3), a straight plate, a bent rod, a bent plate, an arc-shaped rod, an arc-shaped plate, or a combination of two or more of a straight rod, a bent rod, an arc-shaped rod, a straight plate, a bent plate, and an arc-shaped plate, which is not illustrated herein.
The hinge in this embodiment may be implemented by using a hinge technology in the prior art, as shown in fig. 1, fig. 2, or fig. 3, hinge holes are respectively provided on the upper swing arm 201, the lower swing arm 202, and the connecting rod 203, and the hinge shaft 204 is fixed in the hinge holes, so that the hinge between the connecting rod 203 and the upper swing arm 201 and the hinge between the connecting rod 203 and the lower swing arm 202 can be implemented.
For example, to constrain the middle parts of the upper swing arm 201 and the lower swing arm 202 so that the positions thereof do not move and only rotate, in the scheme provided by the embodiment, the device further includes a transmission shaft 206 and a support shaft 207, wherein the transmission shaft 206 can be fixedly connected (the fixed connection is a connection performed by adopting a welding or key connection manner, which will not be described in detail later) to the middle part of the upper swing arm 201, the support shaft 207 can be fixedly connected or movably connected to the middle part of the lower swing arm 202, and the support shaft 207 plays a role in supporting and constraining; in another solution, the transmission shaft 206 may be fixedly connected to the middle part of the lower swing arm 202, the supporting shaft 207 may be fixedly connected or movably connected to the middle part of the upper swing arm 201, the transmission shaft 206 and/or the supporting shaft 207 are respectively fixed to the frame 301 of the vehicle 300 through the supporting seats, so as to implement installation and fixation of the whole reverse synchronization mechanism 200, and the power part is usually directly or indirectly connected to the transmission shaft 206, so as to drive the transmission shaft 206 to rotate around the central axis thereof, and the transmission shaft 206 rotates to drive the upper swing arm 201 or the lower swing arm 202 fixedly connected thereto to rotate, so that the whole reverse synchronization mechanism 200 synchronously acts, so that one of the two connecting rods 203 can rise, thereby driving the track-changing part arranged thereon to synchronously rise, so as to be matched with the corresponding turnout 401, and the other connecting rod 203 can synchronously descend, thereby driving the track-changing part arranged thereon to synchronously descend, so as to be far away from the corresponding turnout 401.
Preferably, the bearing seat 208 is preferably adopted for the supporting seat, so that the separation of movement can be realized, and the supporting and restraining effects can be achieved.
As shown in fig. 1-5, in a preferred embodiment, the track changes are respectively disposed on top of the links 203. More convenient to contact with the corresponding switch 401. By way of example, in the present embodiment, the derailing part is a derailing wheel 205, and the derailing wheel 205 is movably connected to the connecting rod 203 in the reverse synchronization mechanism 200, as shown in fig. 3, the derailing wheel 205 is configured to rotate around its central axis when contacting the switch 401. In this embodiment, the rail wheel 205 may be movably connected to the top of the connecting rod 203 by adopting a bearing, the rail wheel 205 may rotate, and in the fork, the rail wheel 205 may walk along the switch 401 matched with the rail wheel 205, so as to realize rolling contact, which is beneficial to reducing resistance and wear.
In a further scheme, the track-changing device further comprises a transmission part, one end of the transmission part is connected with the power part, the other end of the transmission part is connected with the transmission shaft 206, and the transmission part is used for transmission, so that the position of the power part is flexibly arranged, and the track-changing device is more compact in structure. As an example, the power section employs a motor 101, in particular a motor 101 having a speed reduction function or a motor 101 with a speed reducer.
It will be appreciated that in this embodiment, the transmission is a transmission component commonly used in the art, such as a transmission shaft 206, a gear transmission, a worm gear transmission, a chain transmission, a combination of one or more of the four bar 203 transmissions, etc., and will not be illustrated herein.
In a further aspect, the lifting rail transfer device provided in this embodiment further includes a torque limiter 102, where the torque limiter 102 is disposed between the motor 101 and the transmission shaft 206, and the torque limiter 102 is configured to transmit torque, and when the transmitted torque is greater than the set torque, the torque limiter 102 is disconnected to prevent the torque from being transmitted from one end of the torque limiter 102 to the other end. The problem of burning out the motor 101 due to overload can be avoided, and the motor 101 can be effectively protected.
As an example, as shown in fig. 1 to 5, in the present embodiment, in the reverse synchronization mechanism 200, a support shaft 207 is provided at the middle of the upper swing arm 201, the support shaft 207 may be welded to the upper swing arm 201 and perpendicular to the upper swing arm 201, the support shaft 207 is fixed to a bearing block 208 through a bearing, and the bearing block 208 is fixed to a frame 301 of the vehicle 300; the middle part of lower swing arm 202 is provided with transmission shaft 206, and the one end welding or the adoption key connection of transmission shaft 206 are fixed in lower swing arm 202, and the other end links to each other with the one end of torque limiter 102, and transmission shaft 206 is fixed in bearing frame 208 through the bearing, and bearing frame 208 is fixed in the frame 301 of vehicle 300, and torque limiter 102 adopts current torque limiter 102, and the other end of torque limiter 102 links to each other with the output shaft of motor 101. As shown in fig. 4 or 5, when the vehicle 300 (the vehicle 300 is provided with the travelling wheels 302 for travelling along the track 400) carrying the lifting rail-changing device runs along the track 400, before the vehicle 300 runs along the fork, the motor 101 drives the lower swing arm 202 to rotate around the transmission shaft 206, so that one side of the rail-changing wheel 205 is driven to ascend and match with the corresponding turnout 401 (using the existing turnout 401 as described above), and the other side of the rail-changing wheel 205 is synchronously descended so as to be far away from the corresponding turnout 401, as shown in fig. 4 or 5, so that the vehicle 300 can smoothly pass through the fork.
Example 2
Because of the general difference in size and model of the vehicle 300 on which the present track-change device is mounted, in order to make the present track-change device have stronger adaptability and wider practical range, the number of the reverse synchronization mechanisms 200 in the lifting track-change device may be multiple, such as 2, 3, 4, etc., and only the track-change portions on the same side of each reverse synchronization mechanism 200 need to be synchronized during the operation.
As an example, the lifting rail-changing device provided in this embodiment includes two reverse synchronization mechanisms 200 and a synchronization shaft 103 described in embodiment 1, where two ends of the synchronization shaft 103 are respectively connected to the two reverse synchronization mechanisms 200, so that the two reverse synchronization mechanisms 200 can synchronously operate, and the operations are identical, that is, the operations of two rail-changing portions (i.e., rail-changing wheels 205) located on the same side of the two reverse synchronization mechanisms 200 are identical (synchronous ascending or descending). In this embodiment, by arranging two reverse synchronization mechanisms 200, two rail-changing portions are respectively arranged on two sides of the rail-changing device, and when passing through a fork, the two rail-changing portions on the same side can synchronously act and cooperate with the corresponding switch 401, so that the vehicle 300 can pass through the fork more stably, and collision with the rail 400 is avoided.
In order to realize synchronous action of the two reverse synchronization mechanisms 200 under the action of the same power part, the synchronization shaft 103 has various setting modes, and in a preferred scheme, two ends of the synchronization shaft 103 can be respectively connected with an upper swing arm 201, a lower swing arm 202 or a connecting rod 203 on the same side in the two reverse synchronization mechanisms 200, or one end of the synchronization shaft 103 is connected with a transmission shaft 206 or a supporting shaft 207 in one of the reverse synchronization mechanisms 200, and the other end is connected with the transmission shaft 206 or the supporting shaft 207 at a corresponding position in the other reverse synchronization mechanism 200. As an example, as shown in fig. 6, the two reverse synchronization mechanisms 200 are a first reverse synchronization mechanism 209 and a second reverse synchronization mechanism 210, where the first reverse synchronization mechanism 209 adopts the reverse synchronization mechanism 200 listed in embodiment 1, and the arrangement position of the motor 101 is the same as that of the first reverse synchronization mechanism 209, the second reverse synchronization mechanism 210 differs from the first reverse synchronization mechanism 209 in that a transmission shaft 206 is disposed in the middle of the upper swing arm 201 and a support shaft 207 is disposed in the middle of the lower swing arm 202 in the second reverse synchronization mechanism 210, as shown in fig. 6, whereas in this embodiment, one end of the synchronization shaft 103 is connected to the support shaft 207 disposed in the upper swing arm 201 in the first reverse synchronization mechanism 209, and one end of the synchronization shaft 103 is connected to the transmission shaft 206 disposed in the upper swing arm 201 in the second reverse synchronization mechanism 210, so that when the motor 101 is started, the rail wheels 205 on the same sides in the first reverse synchronization mechanism 209 and the second reverse synchronization mechanism 210 can be driven to perform the reverse synchronization operations.
It will be understood that, in this embodiment, the "sides" of the "one side", "the same side" and "different sides" refer to the middle portion of the upper swing arm 201 as a reference point, and the direction from the middle portion to one end of the upper swing arm 201 is one side.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (8)
1. The lifting type track changing device comprises a power part and a track changing part matched with a turnout, and is characterized by further comprising a reverse synchronizing mechanism, wherein the reverse synchronizing mechanism comprises an upper swing arm, a lower swing arm and two connecting rods, the two connecting rods are respectively and vertically arranged, the track changing device is respectively arranged at the top of the two connecting rods, two ends of the upper swing arm and the lower swing arm are respectively hinged to the two connecting rods, and four hinged positions are respectively positioned at four vertexes of a parallelogram;
the device also comprises a transmission shaft and a supporting shaft, wherein the transmission shaft is fixedly connected with the middle part of the upper swing arm, the supporting shaft is fixedly connected or movably connected with the middle part of the lower swing arm, or the transmission shaft is fixedly connected with the middle part of the lower swing arm, the supporting shaft is fixedly connected or movably connected with the middle part of the upper swing arm, the transmission shaft and the supporting shaft are respectively fixed on the frame through supporting seats, the middle parts of the upper swing arm and the lower swing arm respectively form a revolute pair with the supporting seats,
the power part is connected with the transmission shaft, and the power part is used for driving the transmission shaft to rotate around the central axis of the transmission shaft so as to drive the reverse synchronization mechanism to act, and the reverse synchronization mechanism is used for driving the track changing part on one side to ascend and match with the corresponding turnout, and the track changing part on the other side descends synchronously and is far away from the corresponding turnout.
2. The lifting rail-changing device according to claim 1, wherein the upper swing arm, the lower swing arm and the connecting rod are respectively provided with a hinge hole, a bearing or a rubber sleeve is arranged in the hinge hole on the connecting rod, and the hinge shaft is hinged by being matched with the bearing or the rubber sleeve.
3. The lifting rail transfer apparatus of claim 1, wherein the upper swing arm and/or the lower swing arm is one or a combination of a linear structure, a bent structure, or an arc structure.
4. The lifting rail transfer device according to claim 3, wherein the upper swing arm and/or the lower swing arm respectively comprise a first section and a second section which are symmetrically arranged, an included angle between the first section and the second section is an obtuse angle, the first section and the second section respectively form a hinge joint with the two connecting rods, and when the rail transfer part on one side moves in place, the first section or the second section corresponding to the side is positioned in a horizontal position.
5. The lifting rail transfer device of claim 1, wherein the connecting rod is one or a combination of a straight rod, a straight plate, a bent rod, a bent plate, an arc-shaped rod, and an arc-shaped plate.
6. The lifting rail transfer apparatus according to claim 2, further comprising a torque limiter provided between the motor and the transmission shaft, the torque limiter being configured to transmit torque, the torque limiter being configured to be disconnected when the transmitted torque is greater than the set torque, and to prevent the torque from being transmitted from one end of the torque limiter to the other end.
7. The lifting rail transfer apparatus according to any one of claims 1 to 6, comprising two of the reverse synchronizing mechanisms and a synchronizing shaft, wherein both ends of the synchronizing shaft are respectively connected to the two reverse synchronizing mechanisms, so that the two reverse synchronizing mechanisms synchronously operate and operate in unison.
8. The lifting rail transfer apparatus according to claim 7, wherein both ends of the synchronizing shaft are connected to an upper swing arm, a lower swing arm, or a link on the same side of the two reverse synchronizing mechanisms, respectively, or one end of the synchronizing shaft is connected to a transmission shaft or a support shaft in one of the reverse synchronizing mechanisms, and the other end is connected to a transmission shaft or a support shaft at a corresponding position in the other reverse synchronizing mechanism.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055598.3A CN112744256B (en) | 2019-10-31 | 2019-10-31 | Lifting type track-changing device |
| PCT/CN2020/082901 WO2021082348A1 (en) | 2019-10-31 | 2020-04-02 | Lifting-type rail transfer device and anti-derailing rail transit system |
| PCT/CN2020/124305 WO2021083184A1 (en) | 2019-10-31 | 2020-10-28 | Railroad change apparatus, vehicle, and derailing prevention rail transit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055598.3A CN112744256B (en) | 2019-10-31 | 2019-10-31 | Lifting type track-changing device |
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| Publication Number | Publication Date |
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| CN112744256A CN112744256A (en) | 2021-05-04 |
| CN112744256B true CN112744256B (en) | 2023-11-03 |
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| CN201911055598.3A Active CN112744256B (en) | 2019-10-31 | 2019-10-31 | Lifting type track-changing device |
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| CN112744256A (en) | 2021-05-04 |
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