CN110723168A

CN110723168A - Translation rail transfer mechanism

Info

Publication number: CN110723168A
Application number: CN201910945334.9A
Authority: CN
Inventors: 何先志; 詹仕见; 陈科一
Original assignee: Jiangsu Flying Shuttle Zhihang Equipment Co Ltd
Current assignee: Jiangsu Flying Shuttle Zhihang Equipment Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-01-24
Anticipated expiration: 2039-09-30
Also published as: CN110723168B

Abstract

The invention relates to a translation rail-changing mechanism which comprises at least two rail-changing wheels and a parallelogram mechanism, wherein the rail-changing wheels are respectively arranged on the parallelogram mechanism, and the parallelogram mechanism is used for enabling the rail-changing wheels to synchronously move to one side of a vehicle under the driving of a driving motor; according to the translation track-changing mechanism provided by the invention, two or more track-changing wheels are arranged, and the track-changing wheels synchronously act, so that the problem that a vehicle is easy to collide with a track in the prior art can be effectively solved, and the vehicle can run more stably and safely; and adopt the parallelogram mechanism to drive each orbital transfer wheel synchronization motion, not only simple structure, low cost are convenient for realize, and each orbital transfer wheel synchronism is very good moreover, more is favorable to realizing the orbital transfer, and in addition, in the operation process, this translation orbital transfer mechanism transmission is steady, and the less of required power, and more is favorable to realizing the accurate control to the orbital transfer process.

Description

Translation rail transfer mechanism

Technical Field

The invention relates to the technical field of rail transit, in particular to a translation rail transfer mechanism.

Background

The 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 in more and more types, is not only widely applied to long-distance land transportation, but also widely applied to medium and short-distance urban public transportation, and plays more and more important roles in transportation.

Suspension type rail transit generally comprises a rail, a vehicle (locomotive) arranged on the rail and a car connected with the vehicle and suspended below the rail, wherein the rail is generally erected in the air, and the vehicle travels along the rail so as to drive the car to move forwards; in the prior suspension type rail transit, a vehicle is generally provided with a rail changing mechanism which is generally provided with rail changing wheels, a rail switch is generally arranged in the rail switch, and when the vehicle runs to the switch, the rail changing wheels and the rail switch are matched to guide the vehicle to pass through the switch or realize rail change at the switch through the switch; however, the track-changing mechanism in the prior art usually has some disadvantages, for example, 1, the prior track-changing mechanism has a relatively complex structure, which is not favorable for saving cost; 2. because a vehicle usually has a certain length, the conventional track transfer mechanism is usually provided with only one track transfer wheel, which is not only unfavorable for guiding the vehicle to smoothly pass through a fork, but also easy for the vehicle to collide with a track at the fork, and especially when the fork has a bend, the problem of derailment is easy to occur, for example, in a switch reversing system of a suspension rail vehicle disclosed in chinese patent CN 203996231U, only one track transfer wheel for guiding the vehicle to be transferred (reversed) is arranged above the vehicle, and in the fork with the bend, one end of the vehicle is very easy to collide with the bent track, which is unfavorable for the smooth running of the vehicle; 3. for a track-changing mechanism with two or more track-changing wheels, each track-changing wheel has poor synchronism, which is not favorable for realizing rapid and accurate track-changing, for example, in a turnout reversing system for realizing a trolley in a suspension track disclosed in chinese patent CN 203558061U, two track-changing wheels (i.e. upper guide wheels 3) are respectively fixed on a sliding seat, the sliding seat is sleeved on a sliding rod and connected with a swing arm, when acting, the swing arm drives the sliding seat to move along the sliding rod, so that the two track-changing wheels can move transversely to one side of the vehicle, while in the process of driving the sliding seat to move transversely by the swing arm, the sliding seat will inevitably incline, so that the two track-changing wheels arranged at two ends of the sliding seat move to be unfavorable for track-changing, and in the process of driving the sliding seat to move transversely asynchronously, the moving speeds of the sliding seat at different positions are different, the difference is obvious, which is not convenient for accurately mastering and controlling the positions of the track, in addition, in this track transfer mechanism, the power required for track transfer is greater due to the transmission structure.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a translation track-changing mechanism which is simple in structure, low in cost and convenient to realize, has good synchronism, does not have the risk of collision between a vehicle and a track, requires less power and is beneficial to realizing accurate control.

The technical scheme adopted by the invention is as follows:

the translation rail-changing mechanism comprises at least two rail-changing wheels and a parallelogram mechanism, wherein the rail-changing wheels are respectively arranged on the parallelogram mechanism, and the parallelogram mechanism is used for enabling the rail-changing wheels to synchronously move to one side of a vehicle under the driving of a driving motor. In the scheme, two or more than two track-changing wheels are arranged in the translation track-changing mechanism, and the track-changing wheels synchronously act, so that the problem that the vehicle is easy to collide with the track in the prior art can be effectively solved, and the vehicle can run more stably and safely; and adopt parallelogram mechanism drive each change rail wheel synchronization motion, not only simple structure, low cost are convenient for realize, and each change rail wheel synchronism is very good moreover, and in addition, in the operation process, translation change rail mechanism transmission is steady, and required power is less, and more is favorable to realizing the accurate control to the change rail process.

Preferably, the parallelogram mechanism includes a first swing arm lever, a second swing arm lever and a synchronous connecting rod, one end of the first swing arm lever and one end of the second swing arm lever are respectively hinged to the synchronous connecting rod, and the track transfer wheels are respectively arranged on the synchronous connecting rod or respectively arranged on the first swing arm lever and the second swing arm lever.

Preferably, when the number of the orbital transfer wheels is greater than or equal to three, the orbital transfer wheels are collinear. I.e. in the same linear direction, so that the track-changing wheels can move synchronously to one side of the vehicle, thereby safely and smoothly entering into the fork.

The driving motor has multiple mounting modes and mounting positions, and in one scheme, an output shaft of the driving motor is connected with the first swing arm rod or the second swing arm rod and used for driving the first swing arm rod and the second swing arm rod to swing synchronously.

The other scheme is that the swing arm device further comprises a transmission mechanism, an output shaft of a driving motor is connected with one end of the transmission mechanism, the other end of the transmission mechanism is connected with the first swing arm rod or the second swing arm rod or the synchronous connecting rod, and the driving motor is used for driving the first swing arm rod and the second swing arm rod to swing synchronously.

Preferably, the transmission mechanism is one or more of a transmission rod, a transmission shaft, a gear transmission mechanism, a chain transmission mechanism, a worm gear transmission mechanism and a four-bar linkage mechanism.

In order to protect the driving motor, the power transmission mechanism further comprises a torsion limiter for protecting the driving motor, and the power of the driving motor is transmitted to the parallelogram mechanism through the torsion limiter. The torque limiter is used for limiting the maximum torque force which can be borne by the driving motor, so that when the actual torque force value is larger than the maximum torque force, the torque limiter can automatically disconnect the parts at the two ends of the torque limiter, and the purpose of protecting the driving motor is achieved.

The torque limiter has multiple installation positions, preferably, one end of the torque limiter is connected with the driving motor, and the other end of the torque limiter is connected with the parallelogram mechanism or the transmission mechanism, or two ends of the torque limiter are respectively connected with the transmission mechanism and the parallelogram mechanism, or the torque limiter is arranged in the transmission mechanism.

Furthermore, the swing arm device further comprises a limiting component, and the limiting component is used for limiting the maximum swing angle of the first swing arm rod or the second swing arm rod. The swing angle can be effectively prevented from being too large, and the swing mechanism can be prevented from colliding with the track.

Preferably, the limiting part comprises a baffle or a stop block respectively arranged at two sides of the synchronous connecting rod. When the first swing arm rod and the second swing arm rod swing synchronously, the synchronous connecting rod is driven to move from one side of the vehicle (or the track) to the other side, and when the synchronous connecting rod moves to the limit positions of the two sides, the synchronous connecting rod is contacted with the baffle or the stop block, so that the purpose of limiting is achieved.

Furthermore, the shock absorption device also comprises a plurality of shock absorption blocks, wherein the shock absorption blocks are respectively fixed on the inner side of the limiting part and used for absorbing shock for the synchronous connecting rod.

Furthermore, the vehicle body further comprises two supporting cross beams, the limiting parts are respectively fixed at two ends of the supporting cross beams, the first swing arm rod and the second swing arm rod are respectively hinged to the two supporting cross beams, and the two supporting cross beams are respectively perpendicular to the synchronous connecting rod and used for being mounted on a vehicle.

Furthermore, the auxiliary device also comprises a plurality of auxiliary wheels, wherein the auxiliary wheels are respectively fixed at two ends of the supporting beam and are used for contacting the side surface of the track. Thereby preventing the vehicle from colliding with the rail.

Furthermore, one end or two ends of the synchronous connecting rod are respectively provided with an anti-collision component for preventing the rail-changing wheel from colliding with the turnout. Thereby playing the purpose of protecting the track changing wheel.

Preferably, two side surfaces of the anti-collision part are planes or cambered surfaces, and the thickness of the anti-collision part is gradually reduced along the direction away from the synchronous connecting rod. Therefore, the thickness of the position far away from the synchronous connecting rod is thin, so that the collision with the turnout can be avoided, and the side surface can be contacted with the turnout when the collision occurs, so that the collision intensity is greatly reduced.

In order to avoid the high-speed impact of the synchronous connecting rod on the damping block, in a further scheme, the damping block further comprises an auxiliary spring, one end of the auxiliary spring is connected with the parallelogram mechanism, the other end of the auxiliary spring is fixed on a vehicle, and the auxiliary spring is used for driving the first swing arm rod and the second swing arm rod to swing to the position of the maximum swing angle. In this scheme, through setting up auxiliary spring, can change the control strategy to driving motor, make when driving motor drive synchronous connecting rod is close to the snubber block of one side, driving motor can slow down in advance, make synchronous connecting rod low-speed be close to the snubber block, and auxiliary spring's setting, can provide supplementary pulling force for synchronous connecting rod, make synchronous connecting rod can be close to and mild contact snubber block under auxiliary spring's auxiliary action, ensure that the change rail wheel can move predetermined extreme position department, both can avoid synchronous connecting rod and snubber block to take place the collision of example, can make synchronous connecting rod quick again, steady action targets in place.

Compared with the prior art, the translational orbital transfer mechanism provided by the invention has the following beneficial effects:

1. this translation becomes rail mechanism, simple structure, low cost are convenient for realize, and not only the synchronism is good, does not have the risk that vehicle and track bump moreover, and in addition, required power is less, and is favorable to realizing accurate control.

2. The translation track-changing mechanism also comprises a torque limiter for protecting the driving motor, so that when the actual torque value is greater than the maximum torque which can be borne by the driving motor, the torque limiter can automatically disconnect the components at the two ends of the torque limiter, namely, the parallelogram mechanism and the driving motor can be disconnected in time, and the purpose of protecting the driving motor is achieved.

3. This translation rail transfer mechanism, through setting up auxiliary spring, can provide supplementary pulling force for parallelogram mechanism, make synchronous connecting rod can be close to and mild contact snubber block under auxiliary spring's auxiliary action, ensure to become rail wheel and can move predetermined extreme position department, both can avoid synchronous connecting rod and snubber block to take place the collision of example, can make synchronous connecting rod quick again, steady action targets in place, in addition, can also change the control strategy to driving motor, reach the purpose of protection driving motor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a translational track-changing mechanism provided in embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of another translational track-changing mechanism provided in embodiment 1 of the present invention.

Fig. 3 is a top view of fig. 2 with two derailing wheels on one side of the translating derailing mechanism (vehicle).

Fig. 4 is a top view of fig. 2 with two orbital transfer wheels on the other side of the translating orbital transfer mechanism (vehicle).

Fig. 5 is a partial top view of a translational track-changing mechanism provided in embodiment 1 of the present invention, guided by a switch, passing through the switch.

Fig. 6 is a left side view of fig. 5.

Description of the drawings

A driving motor 101, a torque limiter 102, a transmission shaft 103, a first swing arm lever 104, a second swing arm lever 105, a synchronous connecting rod 106, a track changing wheel 107, a transmission rod 108,

A supporting beam 201, a stop block 202, an anti-collision part 203, an auxiliary wheel 204, a shock absorption block 205,

An auxiliary spring 301,

Switch 401.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of 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 present invention, 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 derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, 2, 3 and 4, the present embodiment provides a translational track-changing mechanism, which includes at least two track-changing wheels and a parallelogram mechanism, wherein the track-changing wheels are respectively disposed on the parallelogram mechanism, and the parallelogram mechanism is used for driving the track-changing wheels to synchronously move to one side (such as left side or right side) of a vehicle under the driving of a driving motor. That is, in the translational track-changing mechanism provided by this embodiment, two or more track-changing wheels are included, and all the track-changing wheels are respectively fixed to the parallelogram mechanism, and the driving motor can drive the parallelogram mechanism to move, so as to drive each track-changing wheel to synchronously move to one side of the vehicle, so that in the fork, the track-changing wheel can be matched with the switch on the side, so that the vehicle can smoothly pass through the fork or complete track change in the fork; in the embodiment, the rail-changing wheels can be arranged along the length direction of the vehicle, so that the rail-changing wheels are respectively arranged at the positions close to the two ends of the vehicle, and the vehicle can move along a turnout under the guidance of the rail-changing wheels, thereby effectively avoiding the collision between the vehicle and a track and being beneficial to more stable and safer operation of the vehicle; the parallelogram mechanism is a common synchronous mechanism, has simple structure, low cost, convenient realization and good synchronism, requires less power in the use process, and is favorable for realizing the accurate control of the orbital transfer process.

For example, in a preferred embodiment, the parallelogram mechanism includes a first swing arm lever, a second swing arm lever, and a synchronization link lever, one end of the first swing arm lever and one end of the second swing arm lever are respectively hinged to the synchronization link lever (i.e., the first swing arm lever and the second swing arm lever form a revolute pair with the synchronization link lever so as to rotate relatively, which is not described in detail later), and the first swing arm lever and the second swing arm lever have the same length and are parallel to each other; it can be understood that the track-changing wheels can be respectively arranged on the synchronous connecting rods, as shown in fig. 1-4, especially when the number of the track-changing wheels is more than or equal to three, the track-changing wheels are collinear, i.e. arranged in the same straight direction, so that the track-changing wheels can synchronously move to one side of the vehicle, so that the vehicle can safely and smoothly enter the turnout, and at the moment, the track-changing wheels are respectively positioned at the outer side of the turnout; it can be understood that the track-changing wheels can be respectively arranged on the first swing arm rod and the second swing arm rod, as shown in fig. 5, the two track-changing wheels can be respectively fixed on the first swing arm rod and the second swing arm rod through the rotating shaft, and the track-changing wheels respectively contact with the turnout and walk (roll) along the turnout in the track-changing process.

The driving motor can preferentially adopt a speed reduction motor, the driving motor has multiple installation modes and installation positions, in one scheme, the output shaft of the driving motor is connected with the first swing arm rod or the second swing arm rod and used for driving the first swing arm rod and the second swing arm rod to swing synchronously, for example, the output shaft of the driving motor is connected with the first swing arm rod, the output shaft of the driving motor rotates to drive the first swing arm rod to swing (rotate), the second swing arm rod is driven by the synchronous connecting rod to swing synchronously with the first swing arm rod, and therefore each track-changing wheel can move synchronously to one side (such as the left side or the right side) of the vehicle.

In another scheme, the swing mechanism further comprises a transmission mechanism, an output shaft of the driving motor is connected with one end of the transmission mechanism, the other end of the transmission mechanism is connected with the first swing arm rod or the second swing arm rod or the synchronous connecting rod, and the driving motor is used for driving the first swing arm rod and the second swing arm rod to swing synchronously. In this scheme, drive mechanism mainly plays driven effect to with the power transmission of driving motor output to first swing arm pole or second swing arm pole.

The transmission mechanism can have various structures, and in a preferred scheme, the transmission mechanism is one or more of a transmission rod, a transmission shaft, a gear transmission mechanism, a chain transmission mechanism, a worm gear transmission mechanism or a four-bar linkage mechanism. For example, as shown in fig. 1, in this embodiment, the driving motor is disposed below the parallelogram mechanism, and the transmission structure adopts a vertically disposed transmission shaft, an output shaft of the driving motor is connected to a lower end of the transmission shaft, an upper end of the transmission shaft is connected to the first swing arm rod, and the transmission shaft is perpendicular to the first swing arm rod, when in use, the driving motor drives the transmission shaft to rotate, so as to drive the first swing arm rod to swing (rotate) relative to a central axis of the transmission shaft, and further drive the second swing arm rod to move synchronously with the first swing arm rod, so that a length direction of the synchronous connection rod is always parallel to a length direction of the vehicle; in addition, in this in-process, the power of transmission shaft output end can be steady transmission to parallelogram mechanism for first swing arm pole and second swing arm pole among the parallelogram mechanism can be at the uniform velocity synchronous swing, and not only required power is less, more is favorable to realizing the accurate control to the process of becoming the orbit moreover, can effectively solve prior art's not enough.

Due to the arrangement of the transmission mechanism, the arrangement of the driving motor is more flexible, and as shown in fig. 2, fig. 3 and fig. 4, in one scheme, the transmission mechanism comprises a transmission rod and a transmission shaft, wherein one end of the transmission rod is hinged to a synchronous connecting rod, the synchronous connecting rod is respectively parallel to the first swing arm rod and the second swing arm rod, the other end of the transmission rod is connected with the upper end of the transmission shaft, the transmission rod is perpendicular to the transmission shaft, the lower end of the transmission shaft is connected with an output shaft of the driving motor, or the lower end of the transmission shaft is connected with a torque limiter, the output shaft of the driving motor is also connected with the torque limiter, and the driving motor drives the transmission rod to swing (rotate) in an English language mode, so that the first swing arm rod.

In the actual use process of the track transfer mechanism, especially in the long-time and high-strength use process, the problem that the track transfer mechanism does not act or the track transfer mechanism does not act in place easily occurs, when a vehicle enters a fork (a switch is usually arranged in the fork and used for guiding the vehicle to move forward along an original track or to transfer to another track), a track transfer wheel usually collides with the switch and is extruded mutually, and the position of the track transfer wheel can be forcibly changed under the extrusion action of the switch, so that the purposes of forced track transfer, automatic deviation correction and derailment prevention are achieved, in the process, a large torsion force can be generated between an output shaft of a driving motor and the track transfer wheel, the driving motor is very easy to damage, and in a further scheme, the track transfer mechanism further comprises a torsion force limiter for protecting the driving motor, the power of the driving motor is transmitted to the parallelogram mechanism through the torsion force limiter, as shown in fig. 1 or fig. 2. The torque limiter is used for limiting the maximum torque force which can be borne by the driving motor, so that when the actual torque force value is larger than the maximum torque force, the torque limiter can automatically disconnect the parts at the two ends of the torque limiter, namely, the first swing arm rod and the second swing arm rod synchronously swing to prevent the driving motor from being driven to rotate, and the purpose of protecting the driving motor is achieved.

It can be understood that the switch is a guiding device which is arranged in the switch and is used for guiding the vehicle to continue to move straight along the original track or guiding the vehicle to change track to another track, and there are various structures, for example, the switch described in this embodiment may be a switch disclosed in chinese patent CN 207498750U, or a switch disclosed in chinese patent CN 108313068 a, and details are not described here again.

It will be appreciated that there are a number of mounting positions for the torque limiter, and in a first preferred embodiment the torque limiter is connected at one end to the drive motor and at the other end to the parallelogram mechanism (for example to the first or second swing arm lever of the parallelogram mechanism) such that the torque limiter automatically disconnects the first or second swing arm lever from the drive motor when the actual torque value is greater than the torque set in the torque limiter.

In a second preferred embodiment, the torque limiter is connected at one end to the drive motor and at the other end to the transmission, so that the torque limiter automatically disconnects the transmission from the drive motor when the actual torque value is greater than the torque set in the torque limiter.

In a third preferred embodiment, both ends of the torque limiter are respectively connected with the transmission mechanism and the parallelogram mechanism, so that when the actual torque value is larger than the torque set in the torque limiter, the torque limiter can automatically disconnect the transmission mechanism and the parallelogram mechanism, thereby indirectly disconnecting the parallelogram mechanism and the driving motor.

In a fourth preferred embodiment, the torque limiter can also be arranged directly in the gear mechanism, which is not illustrated here.

It is understood that the torque limiter in the present embodiment may adopt a torque limiter disclosed in the prior art, and as an example, as shown in fig. 1 and 2, two ends of the torque limiter are respectively connected to an output shaft of the driving motor and the rotating shaft.

As shown in fig. 1 to fig. 6, in a further aspect, the translational orbital transfer mechanism provided in this embodiment further includes a limiting component, where the limiting component is used to limit a maximum swing angle of the first swing arm rod or the second swing arm rod. The problem that the swing angle is too large and the swing angle collides with the track can be effectively prevented. Preferably, the limiting part comprises a baffle or a stop block respectively arranged at two sides of the synchronous connecting rod; for example, as shown in fig. 1 to fig. 6, in a preferred embodiment, the limiting component is a stopper, when the first swing arm and the second swing arm swing synchronously, the synchronous link can be driven to move from one side of the vehicle (or the rail) to the other side, when the synchronous link moves to the limit positions on both sides, the synchronous link can contact the stopper, and the stopper can continue to move by blocking the synchronous link, so as to achieve the purpose of limiting, and effectively avoid the collision between the track changing wheel and the rail (especially, the side plate of the rail).

As shown in fig. 1 to 6, in a further aspect, the device further comprises a plurality of damping blocks, wherein the damping blocks are respectively fixed on the inner sides of the limiting parts and used for damping the synchronous connecting rod. When the synchronous connecting rod moves to one side under the drive of first swing arm pole and second swing arm pole, can contact with the inboard of the spacing part that corresponds the side usually, at this in-process, not only there is great collision, and the noise is big moreover, vibrations are big, in this scheme, through setting up the snubber block at synchronous connecting rod and spacing part, can play buffering, shock attenuation, inhale the purpose of inhaling the shake, as the example, the snubber block can effectively adopt rubber materials to make, here no longer exemplifies.

For convenience of installation, as shown in fig. 1 to 6, in a further scheme, the robot further includes two supporting beams, the limiting parts are respectively fixed at two ends of the supporting beams, the first swing arm rod and the second swing arm rod are respectively hinged to the two supporting beams, and the two supporting beams are respectively perpendicular to the synchronous connecting rod and are used for being installed on a vehicle so as to support the whole parallelogram mechanism.

As shown in fig. 1-6, in a further aspect, the vehicle further comprises a plurality of auxiliary wheels, the auxiliary wheels are respectively fixed at two ends of the supporting beam and are used for contacting the side surface of the track, as shown in fig. 3 or fig. 4, for example, the outermost ends of the auxiliary wheels are respectively located outside the supporting beam, so that the vehicle can be effectively prevented from colliding with the track.

As shown in fig. 1 to 5, in a further aspect, one end or both ends of the synchronization link are respectively provided with an anti-collision component for preventing the track roller from colliding with the turnout, so as to protect the track roller. As shown in fig. 1 or fig. 2, for example, both side surfaces of the impact prevention member are flat surfaces or arc surfaces, and the thickness of the impact prevention member is gradually reduced in a direction away from the synchronization link. Therefore, the thickness of the position far away from the synchronous connecting rod is thin, so that the collision with the turnout can be avoided, and the side surface is contacted with the turnout to play a guiding role when the collision occurs, so that the collision intensity can be greatly reduced.

Because adopt first swing arm pole of driving motor drive and the synchronous swing of second swing arm pole to synchronous link synchronous motion (from one side toward opposite side motion) is driven in step, if in place when synchronous link motion, and just reach the synchronous connecting rod of termination and continue the motion through closing driving motor when contacting with the snubber block, must lead to the problem that synchronous connecting rod collides the snubber block at a high speed, so in further scheme, still include auxiliary spring, auxiliary spring's one end with parallelogram mechanism links to each other, and the other end is fixed in the vehicle, and auxiliary spring is used for driving first swing arm pole and the position department of second swing arm pole swing to the biggest pivot angle. In this embodiment, through setting up the auxiliary spring, can change the control strategy to driving motor, namely, when driving motor drive synchronous connecting rod is close to the snubber block of one side, driving motor can be in the speed reduction in advance, make synchronous connecting rod low-speed be close to the snubber block, and the setting of auxiliary spring, can provide supplementary pulling force for synchronous connecting rod, make synchronous connecting rod can be close to and mild contact snubber block under auxiliary spring's supplementary effect, ensure that the change rail wheel can move to predetermined extreme position department, both can avoid synchronous connecting rod and snubber block to take place the collision of example, can make synchronous connecting rod fast again, steady action targets in place, in addition, can also change the control strategy to driving motor, reach the purpose of protection driving motor.

It can be understood that one end of the auxiliary spring may be disposed between the two supporting beams, as shown in fig. 1, or disposed outside the two supporting beams, as shown in fig. 2-5, and in addition, in order to prevent the auxiliary spring from affecting the normal operation of the parallelogram mechanism, the auxiliary spring may be disposed above or below the auxiliary spring.

It can be understood that, since the parallelogram mechanism usually has a problem of motion uncertainty (i.e. the driven swing arm (the first swing arm or the second swing arm) usually has a problem of motion uncertainty when the first swing arm, the second swing arm and the synchronization link are at collinear positions), the motion uncertainty of the parallelogram mechanism can be eliminated by using a means for eliminating motion uncertainty commonly used in the prior art, for example, a flywheel is provided on the driven swing arm (the first swing arm or the second swing arm), and an auxiliary swing arm can be provided by using inertial guidance of the flywheel, etc., which are not illustrated herein.

Example 2

The embodiment provides a vehicle (rail vehicle), including the vehicle body and the translation rail switching mechanism in embodiment 1, translation rail switching mechanism set up in the vehicle body, just the length direction of synchronous connecting rod is parallel with the length direction of vehicle body.

In a preferred aspect, the translational orbital transfer mechanism may be preferentially fixed at a top-middle position of the vehicle body.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.

Claims

1. The translation rail transfer mechanism is characterized by comprising at least two rail transfer wheels and a parallelogram mechanism, wherein the rail transfer wheels are respectively arranged on the parallelogram mechanism, and the parallelogram mechanism is used for enabling the rail transfer wheels to synchronously move to one side of a vehicle under the driving of a driving motor.

2. The translational orbital transfer mechanism according to claim 1, wherein the parallelogram mechanism comprises a first swing arm rod, a second swing arm rod and a synchronous connecting rod, one end of each of the first swing arm rod and the second swing arm rod is hinged to the synchronous connecting rod, the first swing arm rod and the second swing arm rod are parallel to each other, and the orbital transfer wheels are arranged on the synchronous connecting rod or the first swing arm rod and the second swing arm rod respectively.

3. The translational orbital transfer mechanism according to claim 2, wherein an output shaft of the driving motor is connected with the first swing arm rod or the second swing arm rod and used for driving the first swing arm rod and the second swing arm rod to swing synchronously; or the swing mechanism further comprises a transmission mechanism, an output shaft of the driving motor is connected with one end of the transmission mechanism, the other end of the transmission mechanism is connected with the first swing arm rod or the second swing arm rod or the synchronous connecting rod, and the driving motor is used for driving the first swing arm rod and the second swing arm rod to swing synchronously.

4. The translational orbital transfer mechanism of claim 3, wherein the transmission mechanism is a combination of one or more of a transmission rod or a transmission shaft or a gear transmission mechanism or a chain transmission mechanism or a worm gear transmission mechanism or a four-bar linkage mechanism.

5. The translating track transfer mechanism of claim 1 further comprising a torque limiter for protecting a drive motor, the power of the drive motor being transmitted to the parallelogram mechanism via the torque limiter.

6. The translational orbital transfer mechanism according to claim 3, wherein one end of the torque limiter is connected to the driving motor, and the other end of the torque limiter is connected to the parallelogram mechanism or the transmission mechanism, or both ends of the torque limiter are respectively connected to the transmission mechanism and the parallelogram mechanism, or the torque limiter is disposed in the transmission mechanism.

7. The translational orbital transfer mechanism of any one of claims 2-6, further comprising a limiting member for limiting the maximum oscillation angle of the first or second swing arm lever.

8. The translational orbital transfer mechanism of claim 7, wherein the limiting members comprise baffles or stops disposed on either side of the synchronizing link.

9. The translation rail-changing mechanism according to claim 7, further comprising two supporting beams, wherein the limiting parts are respectively fixed at two ends of the supporting beams, the first swing arm rod and the second swing arm rod are respectively hinged to the two supporting beams, and the two supporting beams are respectively perpendicular to the synchronous connecting rod and are used for being mounted on a vehicle.

10. The translational orbital transfer mechanism according to any one of claims 2 to 6, further comprising an auxiliary spring, one end of the auxiliary spring being connected to the parallelogram mechanism and the other end being fixed to the vehicle, the auxiliary spring being configured to drive the first swing arm lever and the second swing arm lever to swing to a position of maximum swing angle.