CN214112347U - Conductor rail and track system with same - Google Patents

Abstract

The application provides a conductor rail and a track system with the same, wherein the conductor rail is suitable for being electrically connected with a current collector and comprises at least one conductive rail section, and each conductive rail section comprises a rail belt and a rail body; the upper surface of the rail belt is suitable for contacting and matching with the current collector; the rail body comprises a connecting part and a supporting part; the bottom of the connecting part is fixedly connected with the top of the supporting part, and the top of the connecting part is fixedly connected with the rail belt; a hollow cavity is arranged in the supporting part. The utility model provides a conductor rail has less sectional area in order to reduce the heat loss, can also satisfy the scene that requires less current-carrying capacity, has improved durability in utilization and economic suitability.

Description

Conductor rail and track system with same

Technical Field

The utility model belongs to the track traffic field especially relates to a conductor rail and have its track system.

Background

In the existing rail transit system, the conductor rail generally adopts an I-shaped rail, and can meet the use requirements of larger current-carrying capacity, such as 3000A, 4000A, 4500A and the like of the mainstream. However, for the conductor rail with the current-carrying requirement below 3000A, when the i-shaped rail is adopted, the margin is large, the cost is high, and meanwhile, the heat loss is increased, and the resource waste is caused.

SUMMERY OF THE UTILITY MODEL

To above-mentioned technical problem, the utility model provides a novel conductor rail has less sectional area in order to reduce the heat loss, can also satisfy the scene that requires less current-carrying capacity, has improved and has used durability and economic suitability.

The specific technical scheme of the application is as follows:

a conductor rail adapted for electrical connection to a current collector, comprising at least one conductor rail segment, each said conductor rail segment comprising a rail band and a rail body;

the upper surface of the rail belt is suitable for contacting and matching with the current collector;

the rail body comprises a connecting part and a supporting part; the bottom of the connecting part is fixedly connected with the top of the supporting part, and the top of the connecting part is fixedly connected with the rail belt; a hollow cavity is arranged in the supporting part.

The utility model provides a conductor rail is through set up in the supporting part the cavity has reduced when the sectional area of rail body has increased the cross-section girth of rail body has guaranteed the conductor rail has reduced when certain current-carrying capacity the material consumption of conductor rail avoids or reduces the wasting of resources and the higher heat loss that cause when the conductor rail is applied to the scene that requires less current-carrying capacity, in order to improve durability in use and economic suitability when the conductor rail is applied to the scene of less current-carrying capacity.

In addition, the conductor rail according to the present application may also have the following additional technical features.

In some examples of the present application, the hollow cavity penetrates the support portion in an extending direction of the conductive rail. Through setting the hollow cavity to a through structure, the molding processing of the rail body is facilitated, and meanwhile, the cross section shape of the rail body is kept unchanged along the extending direction of the conductor rail, so that the stability of current transmission on the conductor rail is ensured.

In some examples of the present application, a top surface of the hollow cavity is an upwardly concave curved surface. The top surface of the hollow cavity is set to be an upwards sunken curved surface, so that the conductor rail has better pressure bearing capacity.

In some examples of the present application, a bottom surface of the hollow cavity is a plane or a curved surface that is depressed downward. When the bottom surface of the hollow cavity is a plane, the rail body can be ensured to have a smaller cross section and a larger cross section perimeter; when the bottom surface of the hollow cavity is a downward concave curved surface, the pressure bearing capacity of the conductor rail can be further improved.

In some examples of the present application, a width of the connection portion is greater than a width of the support portion in a lateral direction. The connecting part is set to have a larger width, so that the sufficient contact area between the rail belt and the current collector is ensured, and the conductive safety of the conductive rail is ensured.

In some examples of the present application, the rail body further comprises a base portion, a top portion of the base portion and a bottom portion of the support portion being fixedly connected; the base portion has a width greater than a width of the support portion. By arranging the base part, the structural stability of the conductor rail is further improved.

In some examples of the present application, both ends of the rail band in the transverse direction extend downward to form hooks; the two hook parts are respectively matched with the left end and the right end of the connecting part, or the two hook parts are embedded into the connecting part. Through the clamping type connection or embedded connection of the hook part and the rail body, the fastening connection of the rail belt and the rail body is realized, and the rail has good connection stability and conductive stability.

In some examples of the present application, there are at least two conductive rail segments, at least two of the conductive rail segments are sequentially connected in a longitudinal direction, and hollow cavities of two adjacent conductive rail segments are communicated; the conductor rail further comprises joints, the joints are respectively and fixedly connected with the two adjacent conductor rail sections, one end of each joint is located in the hollow cavity of one conductor rail section, and the other end of each joint is located in the hollow cavity of the other conductor rail section. The joints connecting two adjacent conductive rail sections are hidden in the hollow cavity, so that the interference risk of the joints and other parts near the conductive rail is reduced.

In some examples of the present application, the outer peripheral wall of the joint is fitted with the inner peripheral wall of the hollow cavity, and the joint is clearance-fitted with the hollow cavity. The connector is matched with the hollow cavity through a matched structure, so that the connection stability and the structural strength of the plurality of conductive rail sections are ensured.

The present application also provides a rail system comprising a rail and a conductor rail provided according to the present application; the conductive rail is disposed on the rail.

The utility model provides a track system is through set up in the supporting part of conductor rail the cavity reduces when the sectional area of rail body has increased the cross-section girth of rail body has guaranteed when the conductor rail has certain current-carrying capacity has reduced the material consumption of conductor rail avoids or reduces the wasting of resources and the higher heat loss that cause when the conductor rail is applied to the scene that requires less current-carrying capacity, in order to improve durability in use and economic suitability when the conductor rail is applied to the scene of less current-carrying capacity.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

Fig. 1 is a schematic view of a conductor rail and rail system provided by an embodiment of the present application.

Fig. 2 is a cross-sectional view of a conductor rail provided in an embodiment of the present application.

Fig. 3 is a schematic view of a conductive rail provided in an embodiment of the present application.

Fig. 4 is a cross-sectional view of a conductor rail provided in another embodiment of the present application.

Fig. 5 is a schematic view of a conductive rail provided in another embodiment of the present application.

Fig. 6 is a schematic view of a conductive rail provided in an embodiment of the present application.

Fig. 7 is a partial cross-sectional view of a conductor rail provided in one embodiment of the present application.

Fig. 8 is a schematic view of a conductive rail provided in another embodiment of the present application.

Fig. 9 is a partial cross-sectional view of a conductor rail provided in another embodiment of the present application.

Reference numerals:

100. a conductive rail; 100a, a conductive rail segment;

110. a rail band; 111. a hook portion; 120. a rail body; 121. a connecting portion; 122. a support portion; 123. a hollow cavity; 124. a base part; 130. a joint; 140. a fastener;

200. a rail system; 210. a track;

300. a rail transit system; 310. a rail vehicle; 311. a current collector; 312. a running wheel; 313. and a horizontal wheel.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present application more clear and obvious, the present application is further described in 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 present application and are not intended to limit the present application.

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "vertical," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or directionPositional relationships are based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Wherein, xthe axial direction is the longitudinal direction,xthe positive direction of the axis is the front direction,xthe negative axis direction is back;ythe axial direction is a transverse direction,ythe positive direction of the axis is the right direction,ythe axial negative direction is left;zthe axial direction is vertical or vertical,zthe positive direction of the axis is upward,zthe axial negative direction is lower;xOythe plane is the horizontal plane, and the horizontal plane,xOzthe plane is the vertical plane in the longitudinal direction,yOzi.e. the transverse vertical plane. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The conductor rail 100, the rail system 200, and the rail transit system 300 according to the embodiment of the present application are described in detail below with reference to fig. 1 to 9. As shown in fig. 1, in some embodiments, the rail transit system 300 is a straddle monorail system comprising a rail vehicle 310, the rail system 200 comprising a rail 210, the rail vehicle 310 being adapted to travel on the rail 210. The rail vehicle 310 comprises a current collector 311, the conductive rail 100 is arranged on the rail 210, and when the rail vehicle 310 runs on the rail 210, the current collector 311 is suitable for being in contact fit with and electrically connected with the conductive rail 100 to supply power for the running of the rail vehicle 310 and other electricity. In other embodiments, the rail transit system 300 may be a railway transit system, which is not limited in this application.

Referring to a calculation formula of current carrying capacity of the conductor rail:I=5×k×A ^0.5×U ^0.39whereinIfor the carrying capacity (in a),kas a function of the number of the coefficients,Ais the cross section area (unit is mm) of the rail body²），UThe circumference (in mm) of the section of the rail body. It is believed that the current carrying capacity of the conductor rail is positively correlated with the cross-sectional area and cross-sectional perimeter of the rail body, respectively. The existing I-shaped conductor rail suitable for larger current carrying capacity (such as 3000A, 4000A and 4500A of the main current) has larger cross section area and cross section perimeter. However, for a scene requiring a small current-carrying capacity (for example, below 3000A), when the i-shaped conductive rail is adopted, the margin is large, the cost is high, and meanwhile, the heat loss is increased, and the resource waste is caused.

As shown in fig. 2-5, a conductor rail 100 provided by the embodiments of the present application includes at least one conductor rail segment 100a, and each conductor rail segment 100a includes a rail band 110 and a rail body 120. The upper surface of the rail strap 110 is adapted to be in contact engagement with the current collector 311. The rail body 120 includes a connection portion 121 and a support portion 122. The bottom of the connecting part 121 is fixedly connected with the top of the supporting part 122, and the top of the connecting part 121 is fixedly connected with the rail band 110. The supporting portion 122 has a hollow cavity 123 therein.

The utility model provides a conductor rail 100, for the I-shaped conductor rail that is applicable to great current-carrying capacity now, through set up cavity 123 in supporting part 122, the cross-sectional perimeter of rail body 120 has been increased when reducing the sectional area of rail body 120, the material consumption of conductor rail 100 has been reduced when having guaranteed that conductor rail 100 has certain current-carrying capacity, avoid or reduce the wasting of resources and the higher heat loss that causes when conductor rail 100 is applied to the scene that requires less current-carrying capacity, use durability and economic suitability when improving conductor rail 100 and being applied to the scene of less current-carrying capacity.

In some embodiments, the hollow cavity 123 penetrates the support portion 122 in an extending direction of the conductive rail 100. Note that, in the drawings, the extending direction of the conductive rail 100 refers toyThe direction of shaft extension. By making the hollow cavityThe 123 is arranged to be a penetrating structure, so that the forming processing of the rail body 120 is facilitated, meanwhile, the cross section shape of the rail body 120 is kept unchanged along the extending direction of the conductor rail 100, and the stability of current transmission on the conductor rail 100 is guaranteed.

As shown in fig. 2 to 5, in some embodiments, the top surface of the hollow cavity 123 is a curved surface that is concave upwards. When the rail tape 110 is in contact fit with the current collector 311, stress concentration is likely to occur at the connection of the connection portion 121 and the support portion 122. By setting the top surface of the hollow cavity 123 to be an upward concave curved surface, the portion of the supporting portion 122 close to the connecting portion 121 can have a larger width, so that the conductive rail 100 has a better pressure-bearing capacity, and stress concentration of a local structure is avoided. In some embodiments, the top surface of the hollow cavity 123 is an upwardly concave arc curved surface, which facilitates the molding process.

As shown in fig. 2 to 3, in some embodiments, the bottom surface of the hollow cavity 123 is a plane. When the bottom surface of the hollow cavity 123 is a plane, it can be ensured that the rail body 120 has a smaller cross-sectional area and a larger cross-sectional perimeter. In some embodiments, the bottom surface and the side surface of the hollow cavity 123 are both flat surfaces, and the bottom surface and the side surface of the hollow cavity 123 are rounded and transition to each other, thereby forming an approximately gate-shaped structure.

As shown in fig. 8 to 9, in other embodiments, the bottom surface of the hollow cavity 123 is a curved surface that is concave downward. When the bottom surface of the hollow cavity 123 is a curved surface which is concave downwards, the pressure bearing capacity of the conductor rail 100 can be further improved. In some embodiments, the cross-sectional shape of the hollow cavity 123 is circular, i.e., the hollow cavity 123 is a cylindrical surface.

As shown in FIGS. 2-5, in some embodiments, the connecting portion 121 has a width greater than a width of the supporting portion 122 in the transverse direction. By setting the connecting portion 121 to have a larger width, a sufficient contact area between the rail strap 110 and the current collector 311 is ensured, and the conductive safety of the conductive rail 100 is ensured. It should be noted that the lateral direction is shown in the drawingsyThe direction of extension of the shaft.

As shown in FIGS. 4-5, in some embodiments, the rail body 120 further includes a base portion 124, wherein the top portion of the base portion 124 is fixedly connected to the bottom portion of the supporting portion 122; the base portion 124 has a width greater than that of the support portion 122. By providing the base portion 124, the structural stability of the conductor rail 100 is further improved.

In some embodiments, conductor rail 100 further comprises an insulating support. The insulating support is fixedly connected with the bottom of the base part 124. The conductor rail 100 is supported by an insulating support, and the conductor rail 100 is arranged on the track 210, so that the conductor rail 100 has a sufficient insulation distance from the external environment. In some embodiments, the conductor rail 100 is loaded with a concentrated load of 1500N at the center of the support span with a support span of 5m, i.e. a distance of 5m between two adjacent insulating supports. The deflection of the conductor rail 100 should not be greater than 7mm, and when the conductor rail 100 is restored to the initial state after the load is unloaded, the deflection of the conductor rail 100 due to its own weight should not be greater than 3 mm.

As shown in FIGS. 2-5, in some embodiments, the strap 110 extends downwardly at both ends in the transverse direction to form hook portions 111. The two hook portions 111 are respectively engaged with left and right ends of the connection portion 121, or the two hook portions 111 are embedded in the connection portion 121. It should be noted that the lateral direction is shown in the drawingsyThe direction of extension of the shaft. Through the clamping connection or the embedded connection of the hook part 111 and the rail body 120, the fastening connection of the rail belt 110 and the rail body 120 is realized, and the connection stability and the conductive stability are good. In some embodiments, the gap at the junction of the rail strip 110 and the rail body 120 should be less than 0.1mm, and the gap length should be less than 10 mm.

As shown in fig. 6 to 9, in some embodiments, there are at least two conductive track segments 100a, at least two conductive track segments 100a are sequentially connected along the longitudinal direction, and the hollow cavities 123 of two adjacent conductive track segments 100a are connected. The conductor rail 100 further comprises a connector 130, the connector 130 is fixedly connected to two adjacent conductor rail segments 100a, and one end of the connector 130 is located in the hollow cavity 123 of one conductor rail segment 100a, and the other end of the connector 130 is located in the hollow cavity 123 of the other conductor rail segment 100 a. The joint 130 connecting two adjacent conductive rail segments 100a is hidden within the hollow cavity 123, reducing the risk of interference of the joint 130 with other components located near the conductive rail 100.

As shown in fig. 6 to 9, in some embodiments, the outer peripheral wall of the joint 130 is matched with the inner peripheral wall of the hollow cavity 123, and the joint 130 is in clearance fit with the hollow cavity 123. The outer peripheral wall of the joint 130 is adapted to the inner peripheral wall of the hollow cavity 123, that is, the outer peripheral wall of the joint 130 and the inner peripheral wall of the hollow cavity 123 have the same joint shape, for example, when the cross-sectional shape of the hollow cavity 123 is door-shaped, the cross-sectional shape of the joint 130 is door-shaped, when the cross-sectional shape of the hollow cavity 123 is circular, the cross-sectional shape of the joint 130 is circular, and so on. The connector 130 is matched with the hollow cavity 123 through a matched structure, so that the connection stability and the structural strength of the plurality of conductive rail sections 100a are ensured.

As shown in fig. 6 to 9, in some embodiments, the conductor rail 100 further includes a fastening member 140, and the fastening member 140 sequentially passes through one side portion of the supporting portion 122, the contact 130 located in the hollow cavity 123, and the other side portion of the supporting portion 122, so as to achieve a fastening connection of the contact 130 and the supporting portion 122. The connector 130 and the supporting part 122 are connected through the fastener 140, the structure is simple and reliable, and compared with the existing I-shaped conductor rail, the connector 130 does not need to be arranged on two sides of the supporting part 122, and the economical applicability is improved. In some embodiments, the fastening member 140 is a bolt, and the fastening member 140 passes through one side of the supporting portion 122, the joint 130 located in the hollow cavity 123, and the other side of the supporting portion 122 in sequence and then is fixedly connected to a nut.

In some embodiments, the material of the rail band 110 is selected from stainless steel and the material of the rail body 120 is selected from aluminum alloys. The steel-aluminum composite conductor rail 100 has good conductivity, conductive stability and structural strength. In some embodiments, the material of the rail band 110 is selected from 10Cr17 high-grade ferritic stainless steel material or 06Cr19Ni10 high-grade austenitic stainless steel material which meets national or international standards, and is formed by rolling. In some embodiments, the rail body 120 is made of an aluminum-magnesium-silicon alloy, extruded from an aluminum billet, and supported by quenching, artificial aging, cutting, straightening with tension, and the like.

The present application further provides a rail system 200 comprising a rail 210 and a conductor rail 100, the conductor rail 100 being disposed on the rail 210. As shown in fig. 1, in some embodiments, the track system 200 can be used in a straddle-type monorail system, where the track 210 is a track beam and the conductive rail 100 is disposed on a side surface of the track 210. In other embodiments, the track system 200 may be used for railway traffic, and the track 210 may include a substrate, a rail, a track rail 100, and the like, wherein the rail is disposed on the substrate for the track vehicle to travel, and the track rail 100 is also disposed on the substrate for the track vehicle to take electricity. By adopting the conductor rail 100 provided by the embodiment of the application, when the track system 200 is applied to a scene requiring smaller current-carrying capacity, the use durability and the economic applicability are improved.

The present application further provides a rail transit system 300 comprising a rail vehicle 310 and a rail system 200, the rail vehicle 310 being adapted to travel on a rail 210 of the rail system 200. The rail vehicle 310 includes a current collector 311, the current collector 311 being adapted to be in contact engagement with an upper surface of the rail strap 110. As shown in fig. 1, in some embodiments, the rail transportation system 300 is a straddle-type monorail system, in which case the rail vehicle 310 is a straddle-type monorail vehicle, the rail 210 is a rail beam, and the rail vehicle 310 includes traveling wheels 312 and horizontal wheels 313, wherein the traveling wheels 312 run on the upper surface of the rail 210, the horizontal wheels 313 run on the side surface of the rail 210, and the current collector 311 contacts the conductive rail 100 on the side surface of the rail 210 to take power. In other embodiments, the rail transportation system 300 may be a railway transportation system, in which case the running wheels of the rail vehicle 310 are steel wheels suitable for running on rails, and the current collector 311 is suitable for contacting the conductive rail 100 on the substrate to take electricity. By adopting the track system 200 provided by the embodiment of the application, when the track traffic system 300 is applied to a scene requiring smaller current-carrying capacity, the use durability and the economic applicability are improved.

Other constructions and operations of the conductor rails 100, the rail system 200, and the rail transit system 300 according to embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A conductor rail adapted for electrical connection to a current collector, comprising at least one electrically conductive track segment, each said electrically conductive track segment comprising a track band and a track body;

the upper surface of the rail belt is suitable for contacting and matching with the current collector;

the rail body comprises a connecting part and a supporting part; the bottom of the connecting part is fixedly connected with the top of the supporting part, and the top of the connecting part is fixedly connected with the rail belt; a hollow cavity is arranged in the supporting part.

2. A conductor rail according to claim 1, characterised in that the hollow cavity extends through the support in the direction of extension of the conductor rail.

3. A conductor rail according to claim 1, characterised in that the top surface of the hollow cavity is an upwardly concave curved surface.

4. A conductor rail according to claim 3, characterised in that the bottom surface of the hollow cavity is planar or curved, concave downwards.

5. A conductor rail according to claim 1, characterised in that the width of the connection portion is greater than the width of the support portion in the transverse direction.

6. A conductor rail according to claim 1 wherein the rail body further comprises a base portion, the top of the base portion and the bottom of the support portion being fixedly connected; the base portion has a width greater than a width of the support portion.

7. A conductor rail according to claim 1, wherein both ends of the rail band in the transverse direction are extended downward to form a hook portion; the two hook parts are respectively matched with the left end and the right end of the connecting part, or the two hook parts are embedded into the connecting part.

8. A conductor rail according to claim 1, wherein the number of the conductor rail sections is at least two, at least two conductor rail sections are sequentially connected along the longitudinal direction, and the hollow cavities of two adjacent conductor rail sections are communicated;

the conductor rail further comprises joints, the joints are respectively and fixedly connected with the two adjacent conductor rail sections, one end of each joint is located in the hollow cavity of one conductor rail section, and the other end of each joint is located in the hollow cavity of the other conductor rail section.

9. A conductor rail according to claim 8, wherein the outer peripheral wall of the joint is fitted to the inner peripheral wall of the hollow cavity and the joint is clearance fitted to the hollow cavity.

10. A rail system, characterized by comprising a rail and a conductor rail according to any one of claims 1 to 9; the conductive rail is disposed on the rail.

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