CN115520067A - A curved power supply network structure with automatic compensation and leveling and its application - Google Patents

Abstract

This application discloses a curved power supply network structure capable of automatic compensation and leveling and its application, including a trolley line mechanism and a suspension mechanism, the trolley line mechanism includes several trolley lines and loads. The trolley line extends in a curve at the same height from the ground, so that the pantograph is in displacement contact with the trolley line when it runs along the trolley line friction; the suspension mechanism is located on the side of the trolley line mechanism away from the ground to suspend the trolley line mechanism above the ground, and the suspension mechanism includes several The steel wire stay rope and several load suspenders that load the steel wire stay rope; wherein, several insulating support rods are set between the trolley line and the steel wire stay rope, so as to hoist the trolley line Under the steel wire stay rope, the trolley line is flexibly and fixedly connected to the suspension mechanism; this application can prolong the service life of the carbon brush plate and ensure stable power supply.

Description

A curved power supply network structure with automatic compensation and leveling and its application

technical field

The present application relates to the technical field of power supply and reception network, in particular to a curved power supply and reception network structure capable of automatic compensation and leveling and its application.

Background technique

As known, the contact power supply system composed of pantograph and trolley line/contact line is an indispensable part in the field of high-speed trains, trams and bridge cranes. The pantograph runs along the trolley line to realize the Electric power supply, however, the carbon brush plate in the existing pantograph is to receive electricity by frictional contact back and forth along a hard fixed linear trolley line, and the carbon brush plate is always in the original position to receive electricity by friction contact, so The brush plate wears quickly, making the carbon brush plate a vulnerable part with a short service life, and the replacement is more frequent, which increases the operating cost and labor intensity; The phenomenon of cold shrinkage causes the straightness of the trolley line to decrease, and then makes the contact between the trolley line and the pantograph not close enough, which affects the stability of power supply. Therefore, there is an urgent need for a curved power supply network structure that can automatically compensate and level overcome the above problems.

Contents of the invention

The embodiment of the present application provides a curved power supply network structure and its application that can automatically compensate and level, so that when the pantograph runs along the trolley line, it will be displaced along the curve to contact and rub, prolonging the service life of the carbon brush plate. It also makes the trolley line and the pantograph fully and closely contacted to ensure stable power supply. The technical solution is as follows:

The first aspect of the present application provides a curved power supply and receiving network structure capable of automatic compensation and leveling, including a trolley wire mechanism and a suspension mechanism. The trolley wire mechanism is located above the ground for contacting and receiving power by the pantograph The trolley line mechanism includes several trolley lines and several load insulating rods that load the trolley lines and are arranged at intervals. The trolley lines extend in a curve at the same height from the ground, so that the pantograph can When the trolley line is running, it is in displacement contact friction with the trolley line along the curve; the suspension mechanism is located on the side of the trolley line mechanism away from the ground to hang the trolley line mechanism Above the ground, the suspension mechanism includes several steel wire stays corresponding to the trolley line and several load suspenders arranged at intervals to load the steel wire stays; wherein, on the trolley line Several insulating support rods are provided at intervals between the steel wire stay ropes to suspend the trolley line under the steel wire stay ropes and make the trolley line flexibly and fixedly connected with the suspension mechanism.

For example, in the curved power supply and receiving grid structure capable of automatic compensation and leveling provided in one embodiment, the suspension mechanism further includes a tightening device connected to one end of the steel wire rope, and the tightening device includes a vertical The counterweight mechanism arranged at one end of the steel wire stay rope compensates the telescopic length of the steel wire stay rope through the automatic lifting of the counterweight mechanism.

For example, in the curved power supply and receiving network structure capable of automatic compensation and leveling provided by one embodiment, several pulley assemblies distributed axially at intervals are arranged on the load insulation rod and the load suspender rod, and the The pulley assembly on the load insulation rod corresponds to the pulley assembly on the load suspension rod one by one, and several trolley lines pass through the pulley assembly on the load insulation rod and are arranged in parallel on the load insulation rod A plurality of the steel wire stay ropes pass through the pulley assembly on the load suspender and are arranged in parallel on the load suspender.

For example, in the curved power supply and receiving grid structure capable of automatic compensation and leveling provided by one embodiment, the lengths of the pulley assemblies on two adjacent load insulation rods from the ends of the load insulation rods are different, so as to The trolley line is made to extend in a curved line after successively passing through the pulley assemblies on each of the load insulating rods.

For example, in the curved power supply and receiving network structure capable of automatic compensation and leveling provided by one embodiment, the trolley line passes through the pulley assembly on the load insulation rod in turn and then forms a horizontal plane at the same height from the ground Polyline extension.

For example, in the curved power supply and receiving network structure that can automatically compensate and level in one embodiment, it also includes several uprights arranged at intervals, and one end of the load insulation rod and the load suspender is fixed on the uprights superior.

For example, in the curved power supply and receiving network structure capable of automatic compensation and leveling provided in one embodiment, the steel wire stays between two adjacent columns are hoisted in an arc shape, and the insulating support at the bottom of the arc The length of the rod is shorter than the length of the insulating support rods on both sides of the arc bottom, so as to compensate the straightness of the trolley line in the direction perpendicular to the height of the ground.

For example, in the curved power supply and receiving grid structure capable of automatic compensation and leveling provided by an embodiment, the distance between the trolley lines is the same as the distance between the pulley assemblies, and several parallel The spacing between the contact wires is 200-300mm.

The second aspect of the present application provides an application of the above-mentioned curved power supply and grid structure capable of automatic compensation and leveling.

For example, in the application of the curved power supply and receiving network structure capable of automatic compensation and leveling provided by an embodiment, the curved power supply and receiving network structure capable of automatic compensation and leveling is applied to bridge cranes, and the sliding contact The line mechanism and the hanging mechanism are arranged above the driving beam of the bridge crane.

Some embodiments of the present application provide a curved power supply and receiving network structure that can automatically compensate and level and the beneficial effects brought by its application are: the present application improves the power supply trolley line from the traditional straight line installation to a non-linear curve Installed so that when the pantograph runs along the trolley line, the horizontal straight line friction back and forth in situ becomes the displacement contact friction along the curve, which ultimately prolongs the service life of the carbon brush plate on the pantograph and shortens the replacement cycle. Reduce the frequency of maintenance and repairs, thereby reducing maintenance costs; through the mechanical automatic compensation and leveling of the tightening device, the trolley line and the pantograph contact and receive electricity sufficiently tightly to ensure stable power supply.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a side view of a curvilinear power supply and receiving network structure capable of automatic compensation and leveling according to an embodiment of the present application;

Fig. 2 is a top view of a curved power supply and receiving network structure capable of automatic compensation and leveling according to an embodiment of the present application;

Fig. 3 is a perspective view of a curved power supply and receiving network structure capable of automatic compensation and leveling according to an embodiment of the present application.

Reference signs: 100- trolley line mechanism, 110- trolley line, 120- load insulation rod, 200- suspension mechanism, 210- steel wire rope, 211- arc bottom, 220- load suspender, 230- insulation support Rod, 240-tightening device, 241-counterweight mechanism, 250 pulley assembly, 300-column, 400-overhead crane driving beam, 500-pantograph.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

The first aspect of the present application provides a curved power supply and receiving network structure that can automatically compensate and level, as shown in Figure 1-3, including a trolley line mechanism 100 and a hanging mechanism 200, and the trolley line mechanism 100 is located on the ground The upper part is used for the pantograph 500 to contact and receive electricity. The trolley line mechanism 100 includes several trolley lines 110 and several load insulating rods 120 that load the trolley lines 110 and are arranged at intervals. 110 extends in a curve at the same height from the ground, so that when the pantograph 500 runs along the trolley line 110, it will be in displacement contact friction with the trolley line 110 along the curve; the suspension mechanism 200 is located at The side of the trolley line mechanism 100 away from the ground is used to suspend the trolley line mechanism 100 above the ground. The suspension mechanism 200 includes several steel wire ropes corresponding to the trolley line 110 one by one. 210 and several load suspenders 220 that load the steel wire stay rope 210 and are arranged at intervals; wherein, several insulating support rods 230 are arranged at intervals between the trolley line 110 and the steel wire stay rope 210, so that the The trolley line 110 is suspended under the wire stay rope 210 so that the trolley line 110 is flexibly and fixedly connected to the suspension mechanism 200 .

According to the above-mentioned embodiment, this application improves the power supply trolley line 110 from the traditional linear installation to a non-linear curved installation, so that when the pantograph 500 runs along the trolley line 110, it will rub back and forth from a horizontal straight line in situ to a horizontal Linear displacement and friction back and forth ultimately prolong the service life of the carbon brush plate on the pantograph 500, shorten the replacement cycle, and greatly reduce the frequency of maintenance and repairs, thereby reducing maintenance costs.

The curvilinear power supply receiving network structure capable of automatic compensation and leveling of the present application can be applied to the technical fields of electric traction vehicles such as high-speed railway catenary, electrified railway, electric vehicle, trolley bus, tram, bridge crane, etc., as shown in Figures 1-3 An embodiment of installing the curved power supply and grid structure of the present application that can automatically compensate and level on a bridge crane is shown.

Among them, by arranging several insulating support rods 230 at intervals between the steel wire stay rope 210 and the trolley line 110, the defect that the long-span layout of the steel wire stay rope 210 and the trolley line 110 leads to no supporting point for the power supply and reception network is solved. Moreover, the trolley line 110 is flexibly and fixedly connected to the suspension mechanism 200 through the steel wire stay rope 210 and the insulating support rod 230, thereby providing a buffer force for the pantograph 500 when running along the trolley line 110, and overcoming the hard fixation of the trolley line 110, The rigid connection leads to the defect that the carbon brush plate on the pantograph 500 wears quickly and requires frequent maintenance.

For example, in the curved power supply and receiving grid structure capable of automatic compensation and leveling provided by one embodiment, as shown in FIGS. Tightening device 240, the tightening device 240 includes a counterweight mechanism 241 vertically installed at one end of the steel wire stay rope 210, through the automatic lifting of the counterweight mechanism 241 to compensate the telescopic length of the steel wire stay rope 210.

According to the above-mentioned embodiment, by setting the counterweight mechanism 241 vertically at one end of the steel wire stay rope 210, and by setting the weight of the counterweight mechanism 241, and ensuring that the weight of the counterweight is greater than the pulling force of the steel wire stay rope 210, when the environment or the use temperature Changes lead to thermal expansion and contraction of the steel wires 210 or trolley lines 110, which in turn makes several steel wires 210 or trolley lines 110 expand and contract in different lengths. stretching length, and then automatically compensate and level the trolley line 110 hoisted under the steel wire rope 210 to ensure that the trolley line 110 is located at the same height from the ground, thereby avoiding insufficient contact between the trolley line 110 and the pantograph 500 Tightness, this application uses the tightening device 240 to mechanically automatically compensate and level, so that the trolley line 110 and the pantograph 500 are in contact with and receive electricity sufficiently tightly to ensure stable power supply.

For example, in the curved power supply and receiving network structure capable of automatic compensation and leveling provided by one embodiment, as shown in Figure 1-3, several edge The pulley assemblies 250 are spaced apart in the axial direction, and the pulley assemblies 250 on the load insulation rod 120 correspond to the pulley assemblies 250 on the load suspender 220 one by one, and several trolley lines 110 pass through the load The pulley assembly 250 on the insulating rod 120 is arranged in parallel on the load insulating rod 120, and several steel wire stay ropes 210 pass through the pulley assembly 250 on the load suspender 220 and are arranged in parallel on the load suspender 220 on.

Wherein, two, three, four, five or six trolley lines 110 are arranged in parallel on the load insulating rod 120 according to requirements, and the distance between several parallel trolley lines 110 is 200-300mm , and the distance between the trolley lines 110 is the same as the distance between the pulley assemblies 250 on the same load insulating rod 120 .

Wherein, the installation height of the trolley line 110 can be controlled at a high place that cannot be touched by personnel to prevent personnel from getting an electric shock.

Specifically, when installing the trolley line 110, install the insulating support bar 230 on the load suspender 220, and ensure that the insulation isolation capacity of the load insulating bar 120 and the insulating support bar 230 reaches 10KV or more, and then install the insulating support bar 230 under the steel wire rope 121 according to the demand. Hang three to four 380V power supply and receiving copper cables—sliding contact wires 110.

Figures 1-3 of this application show an embodiment in which four trolley lines 110 are arranged in parallel on the load insulation rod 120 and four steel wire stay ropes 210 are arranged in parallel on the load suspender 220. Correspondingly, in each Four pulley assemblies 250 are arranged axially on the load insulating rod 120 for the passage of four trolley lines 110 , and four pulley assemblies 250 are arranged axially on each load suspender 220 for four steel wires to pass through. The stay rope 210 passes through, and the present application does not limit the number of trolley lines 110 laid.

For example, in the curved power supply and receiving network structure capable of automatic compensation and leveling provided by one embodiment, as shown in Fig. 1-3, the distance between the pulley assemblies 250 on two adjacent load insulation poles 120 is The lengths of the ends of the load insulating rods 120 are different, so that the trolley line 110 passes through the pulley assemblies 250 on each of the load insulating rods 120 in turn and extends in a curved line.

According to the above-mentioned embodiment, the present application designs the trolley line 110 as a non-linear form to overcome the problem that the carbon brush plate in the pantograph in the traditional technology rubs back and forth on a hard fixed linear trolley line to receive electricity. The carbon brush plate is always in the original position to receive electricity by frictional contact, so the carbon brush plate wears faster and is replaced more frequently. However, when the curved trolley line 110 of the present application and the pantograph 500 run along the trolley line 110, the carbon The brush plate rubs back and forth on the horizontally curved trolley line 110 softly fixed by the steel wire rope 210 to receive electricity. During operation, it always contacts and rubs at the position of the horizontal bending direction, so that the friction loss of the carbon brush plate for power Compared with the original straight line in situ, the frictional contact loss is reduced by several times, so the replacement cycle ratio is greatly reduced. The curved trolley line 110 of this application extends the pantograph 500 and is in electrical contact with the power supply trolley line 110 The service life of the carbon brush plate is longer, the loss of the carbon brush plate is reduced, and the replacement period is extended.

For example, in the curved power supply and receiving network structure that can automatically compensate and level in one embodiment, as shown in Figures 1-3, the trolley line 110 passes through the pulleys on the load insulating rod 120 in sequence Part 250 extends in a broken line on the plane at the same height from the ground.

Specifically, as shown in FIG. 3 , the distance between the first pulley assembly 250 on two adjacent load insulating rods 120 and the end of the load insulating rod 120 is different, so that the pulley assemblies on two adjacent load insulating rods 120 250 are staggered, so that the trolley line 110 passes through the pulley assembly 250 on each load insulating rod 120 in turn and extends in a broken line.

For example, in the curved power supply and receiving grid structure that can automatically compensate and level in one embodiment, as shown in Figures 1-3, it also includes several columns 300 arranged at intervals, the load insulation rod 120 and the load One end of the suspension rod 220 is fixed on the column 300 .

Wherein, the installation heights of the load insulation rod 120 and the load suspension rod 220 are set according to actual requirements.

For example, in the curved power supply and receiving grid structure that can automatically compensate and level in one embodiment, as shown in Figure 1-3, the steel wire stay rope 210 between two adjacent columns 300 is suspended in an arc shape. It is assumed that the length of the insulating support rods 230 located at the arc bottom 211 is shorter than the length of the insulating support rods 230 on both sides of the arc bottom 211, so as to compensate for the straightness of the trolley line 110 in the direction perpendicular to the height of the ground .

Since the steel wire stay rope 210 will fall due to its own gravity in the long-span layout, the steel wire stay rope 210 between two adjacent columns 300 is arc-shaped, and passes through the insulating support rod 230 along the arc to the downward trolley line 110 The transmitted pressure is uneven, especially at the bottom 211 of the arc, the trolley line 110 is subjected to the greatest pressure of the steel wire stay rope 210. In order to prevent the insulating support rod 230 from transmitting the pressure of the steel wire stay rope 210 unevenly to the lower trolley line 110, resulting in The trolley line 110 bends in the direction perpendicular to the height of the ground. In this application, by changing the length of the insulating support rod 230, the length of the insulating support rod 230 at the arc bottom 211 is shorter than that of the insulating support rod 230 on both sides of the arc bottom 211. length, so as to compensate for the straightness of the trolley line 110 in the direction perpendicular to the height of the ground, so as to ensure that the pantograph 500 can run straight along the trolley line 110, and avoid the steel wire pull rope due to the uniform length of the insulating support rod 230 The trolley line 110 below the 210 and the bent and fallen curved steel wire stay rope 210 are both hoisted in an arc shape.

The second aspect of the present application provides an application of the above-mentioned curved power supply network structure that can automatically compensate and level, including but not limited to high-speed rail catenary, electrified railway, electric vehicles, trolleybuses, trams, and bridge cranes, etc. Applications in electric traction vehicles.

For example, in the application of the curved power supply and receiving network structure that can automatically compensate and level in one embodiment, as shown in Figure 1-3, the curved power supply and receiving network that can automatically compensate and level can be applied to bridge cranes. network structure, and the trolley line mechanism 100 and the suspension mechanism 200 are arranged above the driving beam 400 of the bridge crane, and the pantograph 500 is located between the trolley line mechanism 100 and the driving beam of the bridge crane Between 400.

According to the above-mentioned embodiment, by arranging the trolley line mechanism 100 and the suspension mechanism 200 in the upper space of the driving beam 400 of the bridge crane, it overcomes the traditional power supply network structure and is installed on the side of the sleeper beam at the lower part of the bridge crane running track. , and then in the case of uninterrupted power supply, the pantograph 500 can be manually pushed down immediately, so that the pantograph 500 is separated from the trolley wire mechanism 100, and the whole power supply system is cut off and separated, so as to facilitate maintenance and replacement and other troubleshooting. The traditional method of receiving electricity at the lower part of the bridge crane requires the use of slings and climbing equipment to replace the carbon brush plate during maintenance, which leads to defects such as difficult repairs and dangerous operations. This application has significantly improved the installation and maintenance. The convenience and safety provide convenience for the replacement of the carbon brush plate and ensure the safety of the replacement.

Although the embodiments of the present application have been disclosed for illustrative purposes, those skilled in the art will recognize that various Modify, add and replace.

Claims (10)

1. A curved power supply network structure capable of automatic compensation and leveling, characterized in that it includes: The trolley line mechanism is located above the ground for the pantograph to contact and receive electricity. The trolley line mechanism includes several trolley lines and several load insulating rods that load the trolley lines and are arranged at intervals. The trolley line The antenna line extends in a curve at the same height from the ground, so that the pantograph is in displacement contact friction with the trolley line when it runs along the trolley line; The hanging mechanism is located on the side of the trolley line mechanism away from the ground to suspend the trolley line mechanism above the ground. The hanging mechanism includes several steel wires corresponding to the trolley lines Rope and several load suspenders arranged at intervals to load the steel wire stay rope; Wherein, several insulating support rods are arranged at intervals between the trolley line and the steel wire stay rope, so as to hang the trolley line under the steel wire stay rope and make the trolley line and the The hanging mechanism is flexibly fixedly connected. 2. The curved power supply receiving network structure capable of automatic compensation and leveling according to claim 1, wherein the suspension mechanism further includes a tightening device connected to one end of the steel wire stay rope, and the tightening The device includes a counterweight mechanism vertically arranged at one end of the steel wire stay rope, and the automatic lifting of the counterweight mechanism can compensate the stretching length of the steel wire stay rope. 3. According to claim 1, the curved power supply receiving network structure capable of automatic compensation and leveling is characterized in that, several pulley assemblies distributed axially at intervals are arranged on the load insulation rod and the load suspender , and the pulley assembly on the load insulating rod corresponds to the pulley assembly on the load suspension rod one by one, and several trolley lines pass through the pulley assembly on the load insulating rod and are arranged in parallel on the load On the insulating pole, several steel wire stay ropes pass through the pulley assembly on the load suspender and are arranged in parallel on the load suspender. 4. According to claim 3, the curved power supply and receiving network structure capable of automatic compensation and leveling is characterized in that the distance between the pulley assemblies on two adjacent load insulating rods and the end of the load insulating rods is different, so that the trolley line extends in a curved line after successively passing through the pulley assemblies on each of the load insulating rods. 5. The curved power supply network structure capable of automatic compensation and leveling according to claim 4, characterized in that the trolley line passes through the pulley assembly on the load insulating rod in sequence and is at the same height from the ground Extends in a folded line on the plane. 6. According to claim 1, the curvilinear power supply receiving network structure capable of automatic compensation and leveling is characterized in that it also includes several columns arranged at intervals, and one end of the load insulating rod and the load suspender is fixed on the on the upright. 7. According to claim 6, the curved power supply network structure capable of automatic compensation and leveling is characterized in that, the steel wire stays between two adjacent columns are hoisted in an arc shape, and the The length of the insulating support rods is shorter than the length of the insulating support rods on both sides of the arc bottom, so as to compensate the straightness of the trolley line in the direction perpendicular to the height of the ground. 8. According to claim 3, the curved power supply and receiving network structure capable of automatic compensation and leveling is characterized in that the distance between the trolley lines is the same as the distance between the pulley assemblies, and several mutually parallel The distance between the trolley lines is 200-300mm. 9. An application of a curved power supply and receiving network structure capable of automatic compensation and leveling according to any one of claims 1-8. 10. According to claim 9, the application of the curved power supply receiving network structure capable of automatically compensating and leveling is characterized in that the curved power supply receiving network structure capable of automatically compensating and leveling is applied to bridge cranes, and the The trolley line mechanism and the suspension mechanism are arranged above the driving beam of the bridge crane.

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