阅读说明：本技术 一种道岔区连续型可动齿轨结构 (Continuous movable rack structure in turnout zone ) 是由 陈志辉 杨吉忠 王坚强 张茂帆 肖飞知 代丰 冯读贝 蔡文锋 李忠继 徐浩 胡连 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种道岔区连续型可动齿轨结构,包括直线钢轨和曲线钢轨,道岔区直股道的齿轨与曲线钢轨交汇形成第一交汇处,并在此处纵向断开形成第一内侧可动齿轨和第一外侧可动齿轨；道岔区曲股道的齿轨与直线钢轨交汇形成第二交汇处,并在此处断开形成第二内侧可动齿轨和第二外侧可动齿轨；所述第一内侧可动齿轨、第一外侧可动齿轨、第二内侧可动齿轨和第二外侧可动齿轨远离交汇处的一端分别铰接固定在轨枕上,另一端分别与转辙机相连并由转辙机带动绕铰接点进行转动。本发明结构简单合理,可有效实现齿轨结构在道岔区段的一致性和连续性,进而提高齿轨车辆通过齿轨道岔时的安全性及平稳性,使乘客更加舒服且适应性好。(The invention discloses a continuous movable tooth rail structure in a turnout zone, which comprises a linear steel rail and a curved steel rail, wherein the tooth rail of a linear track in the turnout zone is intersected with the curved steel rail to form a first intersection, and the first intersection is longitudinally broken to form a first inner movable tooth rail and a first outer movable tooth rail; the tooth track of the curved track in the turnout area is intersected with the linear steel rail to form a second intersection, and the second intersection is disconnected to form a second inner movable tooth track and a second outer movable tooth track; and one ends of the first inner side movable rack rail, the first outer side movable rack rail, the second inner side movable rack rail and the second outer side movable rack rail, which are far away from the intersection, are respectively hinged and fixed on the sleeper, and the other ends of the first inner side movable rack rail, the first outer side movable rack rail, the second inner side movable rack rail and the second outer side movable rack rail are respectively connected with a switch machine and are driven by the switch machine to rotate. The invention has simple and reasonable structure, can effectively realize the consistency and continuity of the rack structure in the turnout section, further improve the safety and the stability of the rack vehicle when passing through the turnout of the rack, and ensure that passengers feel more comfortable and have good adaptability.)

1. A continuous movable rack structure in a turnout zone comprises a linear steel rail and a curved steel rail and is characterized in that a rack of a linear track in the turnout zone is intersected with the curved steel rail to form a first intersection, and the first intersection is longitudinally broken to form a first inner movable rack and a first outer movable rack; the tooth track of the curved track in the turnout area is intersected with the linear steel rail to form a second intersection, and the second intersection is disconnected to form a second inner movable tooth track and a second outer movable tooth track; and one ends of the first inner side movable rack rail, the first outer side movable rack rail, the second inner side movable rack rail and the second outer side movable rack rail, which are far away from the intersection, are respectively hinged and fixed on the sleeper, and the other ends of the first inner side movable rack rail, the first outer side movable rack rail, the second inner side movable rack rail and the second outer side movable rack rail are respectively connected with a switch machine and are driven by the switch machine to rotate.

2. The turnout zone continuous movable rack structure according to claim 1, wherein the longitudinal line type of the first inner movable rack, the first outer movable rack, the second inner movable rack and the second outer movable rack is a straight line on the side of the hinge fixed end, and has a transverse offset towards the outer side of the corresponding rail on the non-fixed end, and the longitudinal pitch is kept continuously constant from front to back.

3. The turnout zone continuous type movable rack structure according to claim 1, wherein the inner side of the attached rail below the tooth socket of the non-fixed end of the first inner movable rack, the first outer movable rack, the second inner movable rack and the second outer movable rack is step-shaped, and the top of the step is lower than the bottom of the tooth socket.

4. The turnout zone continuous type movable rack structure according to claim 1, wherein the relative heights of the tooth tops of the first inner movable rack, the first outer movable rack, the second inner movable rack and the second outer movable rack are the same, and the tooth bottom surface is higher than the rail top surface.

5. The turnout zone continuous type movable rack structure according to claim 1, wherein the first outer movable rack and the first inner movable rack are one set of motion mechanism relative to the curved rail, and the second outer movable rack and the second inner movable rack are the other set of motion mechanism relative to the linear rail.

6. The turnout zone continuous movable rack structure according to claim 5, wherein the two movable racks in each set of moving mechanism are synchronously close to or far away from the steel rail during switching, and the moving states of the two sets of moving mechanisms are opposite.

7. The turnout zone continuous type movable rack structure according to claim 6, wherein in the closed state, the two movable racks of each set of motion mechanism are tightly attached at the non-fixed end and partially overlapped, the tooth shapes of the overlapped parts are correspondingly aligned, and the longitudinal tooth pitches are consistent.

8. The turnout zone continuous type movable rack structure according to claim 1, wherein the rear ends of the first and second inner movable racks are hinged to an inner rack mounting plate, the rear ends of the first and second outer movable racks are hinged to an outer rack mounting plate, and the inner rack mounting plate and the outer rack mounting plate are fixed to a sleeper.

Technical Field

The invention relates to the field of mountain toothed rail railways, in particular to a continuous movable toothed rail structure in a turnout area.

Background

The rack-rail railway has a wide development and application prospect in traveling and transportation in mountainous regions in China by virtue of the remarkable characteristic of strong climbing capability. Compared with the traditional track system, the toothed rail railway lays a toothed rail on the longitudinal central line of the track, and the problem of insufficient adhesive force between wheel rails of a large-slope section is solved through the meshed rotation of the traction gear and the toothed rail of the toothed rail vehicle bogie. The turnout is used as a connecting device for transferring vehicles from one track to another track in rail transit, is an essential important component in a railway, and is a weak link in a track structure.

The rack rail railway is characterized in that a special rack rail is additionally arranged in the middle of a common rail sleeper, so that the rail structure is more complicated. Especially in the switch district, not only have the intersection of rail and rail, the intersection of rail and cogged rail in addition, how to design a simple and easy practical, safe and reliable's cogged rail switch structure, realize that the cogged rail vehicle is safe and stable and change between different cogged rail tracks, is that technical staff in this field awaits a urgent need a problem to solve. The Chinese patent application No. 201820480520.0 proposes a non-covered tooth track turnout switch mechanism, which comprises a front stock rail at the straight line side, a first steel rail, a first tooth track and a second steel rail; the curved side basic rail, the third steel rail, the second tooth rail and the fifth steel rail; the straight line side rear stock rail, the fifth steel rail, the third tooth rail and the sixth steel rail; the switch rail, the first movable tooth rail, the movable steel rail and the second movable tooth rail; a first switch machine, a second switch machine, a third switch machine and a fourth switch machine. Because rail and cogged rail all are located same horizontal plane in this mechanism, so at the intersection of rail and cogged rail, this mechanism has set up corresponding goat, and control rail and cogged rail together swing to realize the change of cogged rail vehicle operation track, but this mechanism lets the equal disconnection of rail cogged rail here, and the cogged rail vehicle has certain impact when passing through, and the here all forms a weak link on rail and cogged rail, uses for a long time and easily causes the damage. For another example: chinese patent application No. 201820459064.1 proposes "a switch mechanism of a tooth rail covered steel rail", which includes a first straight-line steel rail, a second straight-line steel rail, a first curved-line steel rail, a second curved-line steel rail, a first straight-line tooth rail, a second straight-line tooth rail, a curved tooth rail, a movable tooth rail, a first straight-line guard rail, a second straight-line guard rail, a curved guard rail, a first steel rail switch, a second steel rail switch, a first switch rail, and a second switch rail. The rack bottom surface is located same horizontal plane with the rail top surface in this mechanism, at the intersection of rail and rack, only the rack disconnection, the structure is comparatively simple, this mechanism has set up corresponding goat simultaneously, only control the rack swing, thereby realize the change of rack vehicle operation track, but this mechanism can form the vertical disconnection breach of a tooth pitch length when the rack at here is closed, the impact of gear and rack when the rack vehicle passes through is great, then probably can take place the top tooth phenomenon when serious, lead to here can become the weak link of structure of rack switch, the long-term in-service in-process easily leads to the fact the damage, there is certain potential safety hazard.

Disclosure of Invention

The invention aims to: in order to overcome the defects of a turnout tooth track switching structure in the prior art, the continuous movable tooth track structure in the turnout area is provided, the consistency and the continuity of the tooth track in the line type of the turnout area can be effectively ensured, and the safe and reliable operation of a tooth track train on different station tracks is ensured.

In order to achieve the purpose, the invention adopts the technical scheme that:

a continuous movable tooth rail structure in a turnout zone comprises a linear steel rail and a curved steel rail, wherein a tooth rail of a linear track in the turnout zone is intersected with the curved steel rail to form a first intersection, and the first intersection is longitudinally broken to form a first inner movable tooth rail and a first outer movable tooth rail; the tooth track of the curved track in the turnout area is intersected with the linear steel rail to form a second intersection, and the second intersection is disconnected to form a second inner movable tooth track and a second outer movable tooth track; and one ends of the first inner side movable rack rail, the first outer side movable rack rail, the second inner side movable rack rail and the second outer side movable rack rail, which are far away from the intersection, are respectively hinged and fixed on the sleeper, and the other ends of the first inner side movable rack rail, the first outer side movable rack rail, the second inner side movable rack rail and the second outer side movable rack rail are respectively connected with a switch machine and are driven by the switch machine to rotate.

The invention realizes the opening and closing states of the opposite steel rails by arranging the first inner side movable rack rail and the first outer side movable rack rail on two sides of the curved steel rail, arranging the second inner side movable rack rail and the second outer side movable rack rail on two sides of the linear steel rail, and hinging and fixing one ends of the first inner side movable rack rail, the first outer side movable rack rail, the second inner side movable rack rail and the second outer side movable rack rail, which are far away from the intersection, on the sleeper respectively, and driving the other ends to rotate around the hinging point by the point switch, thereby ensuring the continuous and accurate meshing of a traction gear of a rack train and a rack structure in a turnout area. The railway turnout can be directly installed on the existing railway turnout, is convenient and fast to construct, has better stress performance, long service life and is easy to maintain.

In a preferred embodiment of the present invention, the first inner movable rack, the first outer movable rack, the second inner movable rack, and the second outer movable rack have a straight longitudinal line shape on the hinge-fixed end side and a lateral offset toward the outside of the corresponding rail on the non-fixed end, and the longitudinal pitch is continuously constant in the front and rear directions. The movable rack rail is transversely deflected at a certain angle, so that enough passing space for wheels of the bogie is reserved when the movable rack rail is in an open state; the tooth pitch in the whole longitudinal range is kept unchanged so as to ensure the smooth and accurate meshing of the bogie traction gear and the rack when the movable rack is in a closed state.

In a preferred embodiment of the present invention, the inner side of the bonded rail below the non-fixed end tooth spaces of the first inner movable rack, the first outer movable rack, the second inner movable rack, and the second outer movable rack is stepped, and the step tops are lower than the bottom surfaces of the tooth spaces. The step-shaped structure is used for reserving the space size required by the movable rack rail to cover the steel rail in a closed state, so that the interference problem when the rack rail and the steel rail are crossed is avoided, and the continuity of the steel rail in a fork area is ensured; the top of the step is lower than the bottom of the tooth groove, and is mainly used for supporting and connecting the upper tooth-shaped structure and ensuring the integral strength of the upper tooth-shaped structure.

In a preferred embodiment of the present invention, the first inner movable rack, the first outer movable rack, the second inner movable rack, and the second outer movable rack have the same relative heights of the tooth tops, and the tooth bottom surface is higher than the rail top surface, which is advantageous for reducing the impact of the vehicle on the rail when passing through the switch.

In a preferred embodiment of the present invention, the first outer movable rack and the first inner movable rack are a set of motion mechanisms with respect to the curved rail, and the second outer movable rack and the second inner movable rack are another set of motion mechanisms with respect to the linear rail.

Preferably, the two movable racks in each set of moving mechanisms are synchronously close to or far away from the steel rail during switching, and the moving states of the two sets of moving mechanisms are opposite, so that when one set of moving mechanisms is in a closed state, the other set of moving mechanisms is in an open state.

As a preferred scheme of the invention, when in a closed state, two movable racks of each group of motion mechanisms are tightly attached at the non-fixed ends and partially overlapped, the tooth shapes of the overlapped parts are correspondingly aligned, and the longitudinal tooth pitches are consistent front and back, so that the traction gear of the rack train bogie is accurately meshed with the racks, and the safe and stable running of the train when the train passes a switch is further realized.

In a preferred embodiment of the present invention, the rear ends of the first and second inner movable racks are hinged to an inner rack mounting plate, the rear ends of the first and second outer movable racks are hinged to an outer rack mounting plate, and the inner rack mounting plate and the outer rack mounting plate are fixed to the sleeper.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the invention realizes the opening and closing states of the opposite steel rails by arranging the first inner side movable rack rail and the first outer side movable rack rail on two sides of the curved steel rail, arranging the second inner side movable rack rail and the second outer side movable rack rail on two sides of the linear steel rail, and hinging and fixing one ends of the first inner side movable rack rail, the first outer side movable rack rail, the second inner side movable rack rail and the second outer side movable rack rail, which are far away from the intersection, on the sleeper respectively, and driving the other ends to rotate around the hinging point by the point switch, thereby ensuring the continuous and accurate meshing of a traction gear of a rack train and a rack structure in a turnout area. The railway turnout can be directly installed on the existing railway turnout, is convenient and fast to construct, has better stress performance, long service life and is easy to maintain;

2. the movable rack rail is transversely deflected at a certain angle, so that enough passing space for wheels of the bogie is reserved when the movable rack rail is in an open state; the tooth pitch in the whole longitudinal range is kept unchanged so as to ensure the smooth and accurate meshing of the bogie traction gear and the rack when the movable rack is in a closed state;

3. the step-shaped structure is used for reserving the space size required by the movable rack rail to cover the steel rail in the closed state, so that the interference problem when the rack rail and the steel rail are crossed is avoided, and the continuity of the steel rail in a turnout area is ensured; the top of the step is lower than the bottom of the tooth groove and is mainly used for supporting and connecting the upper tooth-shaped structure and ensuring the integral strength of the upper tooth-shaped structure;

4. two movable racks of each group of moving mechanisms are tightly attached at the non-fixed end and partially overlapped when the train passes through a switch, the tooth shapes of the overlapped parts are correspondingly neat, and the longitudinal tooth pitches are consistent front and back, so that the traction gear of the rack train bogie is accurately meshed with the racks, and the safe and stable running of the train when the train passes through the switch is realized.

Drawings

FIG. 1 is a perspective view of a continuous movable rack structure in a turnout zone of the present invention;

FIG. 2 is a plan view of the turnout zone continuous type movable rack structure in the working state 1;

FIG. 3 is a plan view of the turnout zone continuous type movable rack structure in the working state 2;

FIG. 4 is a perspective view of the movable rack structure of the present invention (taking the first inner movable rack as an example);

fig. 5 is a plan view of the movable rack structure of the present invention (taking the first inner movable rack as an example).

The labels in the figure are: the curved rail 1, the first inner movable rack 2, the first outer switch 3, the second inner switch 4, the first outer movable rack 5, the outer rack mounting plate 6, the second outer movable rack 7, the second outer switch 8, the first inner switch 9, the second inner movable rack 10, the linear rail 11, the sleeper 12, and the inner rack mounting plate 13.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.