CN112026591B - Contact line assembly connecting device and mobile contact net system - Google Patents
Contact line assembly connecting device and mobile contact net system Download PDFInfo
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- CN112026591B CN112026591B CN202010756266.4A CN202010756266A CN112026591B CN 112026591 B CN112026591 B CN 112026591B CN 202010756266 A CN202010756266 A CN 202010756266A CN 112026591 B CN112026591 B CN 112026591B
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- contact line
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- line assembly
- telescopic mechanism
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- 230000007246 mechanism Effects 0.000 claims abstract description 155
- 230000009471 action Effects 0.000 claims abstract description 3
- 230000008859 change Effects 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/26—Compensation means for variation in length
Abstract
The utility model relates to a contact line assembly connecting device and a mobile contact net system, wherein the contact line assembly connecting device is arranged in the mobile contact net system for rail transit, and the mobile contact net system comprises a stand column for supporting the contact line assembly, and comprises a telescopic mechanism, a limiting mechanism and a connecting mechanism; the telescopic mechanism comprises relatively movable components, one end of the whole telescopic mechanism is hinged to the upper part of the upright post, the other end of the whole telescopic mechanism is a free end, and the telescopic mechanism can stretch and retract along the direction transverse to the upright post under the action of external force so that the free end enters or leaves the space above the rail in the horizontal direction; the limiting mechanism is arranged between relatively movable components in the telescopic mechanism and used for limiting the movable range between the relatively movable components; the connecting mechanism is arranged at the free end of the telescopic mechanism and is used for connecting the contact line assembly; the telescopic mechanism is driven by the contact line assembly to stretch and retract, and the limiting mechanism can limit the stretching length of the telescopic mechanism.
Description
Technical Field
The disclosure relates to the technical field of rail transit mobile contact networks, in particular to a contact line assembly connecting device and a mobile contact network system.
Background
In a yard of freight rail transit, it is necessary to load cargo from above a car by a mechanical tool such as a forklift or a loader. The electrified railway line is generally powered by a contact net, a contact line for providing power for an electric locomotive is arranged above a track, but the operation of loading equipment in a yard occupies space above a train, so the contact net cannot be arranged above the track in the yard. The train is usually stopped before reaching the freight station, and the whole train traction operation is carried out by the diesel locomotive, so that the efficiency is low. One known solution is to arrange a mobile contact network in the yard, i.e. with uprights along the rails, on which uprights movable support bars are arranged, which support bars can be turned in horizontal or vertical direction, the contact lines and the carrier ropes being connected to the ends of the support bars. When the supporting rod rotates, the contact line and the carrier cable at the tail end of the supporting rod are moved away from the position right above the train, so that space is reserved for loading operation. To ensure synchronous movement of the contact wires, rigid contact wires are generally used, which cannot accommodate curved freight stations.
Disclosure of Invention
In order to solve the technical problems described above or at least partially solve the technical problems described above, the present disclosure provides a contact line assembly connecting device and a mobile contact network system.
In a first aspect, a contact line assembly connecting device is provided, and is arranged in a mobile contact network system for rail transit, wherein the mobile contact network system comprises a stand column for supporting a contact line assembly, and the stand column comprises a telescopic mechanism, a limiting mechanism and a connecting mechanism; the telescopic mechanism comprises relatively movable components, one end of the whole telescopic mechanism is hinged to the upper part of the upright post, the other end of the whole telescopic mechanism is a free end, and the telescopic mechanism can stretch and retract along the direction transverse to the upright post under the action of external force so that the free end enters or leaves the space above the rail in the horizontal direction; the limiting mechanism is arranged between relatively movable components in the telescopic mechanism and used for limiting the movable range between the relatively movable components; the connecting mechanism is arranged at the free end of the telescopic mechanism and is used for connecting the contact line assembly; the telescopic mechanism is driven by the contact line assembly to stretch and retract, and the limiting mechanism can limit the stretching length of the telescopic mechanism.
In one possible implementation, the telescopic mechanism is a link assembly, a part of the link assembly is hinged to the upright, the other part of the link assembly is movable relative to the part of the link assembly, so that the link assembly stretches and contracts relative to the upright, the tail end of the other part of the link assembly is a free end, and the limiting mechanism can limit the relative rotation angle between the members of the link assembly.
In combination with the foregoing possible implementation manner, in a second possible implementation manner, the connecting rod assembly includes a hinge rod group, the hinge rod group includes two hinged rods, and two ends of the hinge rod group are hinged with the upright and the contact line assembly respectively.
In combination with the foregoing possible implementation manner, in a third possible implementation manner, the hinge rod set includes a first rod set and a second rod set that are symmetrically disposed, where the first rod set and the second rod set each include two hinged rods, two ends of the first rod set are hinged to the upright post and the contact line assembly respectively, and two ends of the second rod set are hinged to the upright post and the contact line assembly respectively.
In combination with the foregoing possible implementation manner, in a fourth possible implementation manner, a limiting mechanism is disposed between two rods of the first rod set and between two rods of the second rod set, so as to limit an opening angle between the two rods of the first rod set and the second rod set.
In combination with the foregoing possible implementation manner, in a fifth possible implementation manner, the limiting mechanism is disposed between two rods of the first rod group to limit an opening angle between the two rods, and the limiting mechanism is disposed between the first rod group and the upright to limit a closing angle between the first rod group and the upright.
In combination with the foregoing possible implementation manner, in a sixth possible implementation manner, the limiting mechanism is disposed between the first rod set and the upright to limit a closing angle between the first rod set and the upright, and the limiting mechanism is disposed between the second rod set and the upright to limit a closing angle between the second rod set and the upright.
In combination with the foregoing possible implementation manner, in a seventh possible implementation manner, the limiting mechanism includes a fixing member and an adjusting member, and the adjusting member is adjustably connected to the fixing member, and the fixing member is used for being connected to the telescopic mechanism.
In combination with the foregoing possible implementation manner, in an eighth possible implementation manner, the hinge points where the first rod group and the second rod group are connected to the upright do not coincide.
In combination with the foregoing possible implementation manner, in a ninth possible implementation manner, the hinge points where the first rod set and the second rod set are connected to the contact line assembly do not coincide.
In combination with the above possible implementation manner, in a tenth possible implementation manner, the hinge shaft of the link assembly is parallel to the upright.
In a second aspect, a mobile catenary system is provided for providing power for rail transit, including a first portal, a second portal, a plurality of posts, a plurality of contact line assembly connection devices, and a contact line assembly; the first portal frame comprises a vertical frame and a transverse frame, the vertical frame is arranged at the side of the track, and the transverse frame is fixed above the vertical frame and spans across the track; the second door frame comprises a vertical frame and a transverse frame, the vertical frame is arranged at the side of the track, the transverse frame is fixed above the vertical frame and spans the track, and a preset distance is reserved between the first door frame and the second door frame; the plurality of upright posts are arranged between the first portal frame and the second portal frame; the contact wire assembly connecting devices are arranged on the upright posts respectively, and are any contact wire assembly connecting device in the first aspect, and the contact wire assembly connecting devices have different telescopic strokes; the contact line assembly is positioned between the first portal and the second portal, and the contact line assembly is connected with the contact line assembly connecting devices on the plurality of upright posts in series.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages: the limiting mechanism is arranged in the contact line assembly connecting device, and can limit the telescopic length of the telescopic mechanism, and the extension range of the telescopic mechanism can be set according to actual needs, so that the telescopic mechanism is suitable for the shape of a station yard.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a front view of one embodiment of a contact wire assembly connection device when extended;
fig. 2 is a left side view of the contact wire assembly connection device of fig. 1;
fig. 3 is a top view of the contact wire assembly connection device of fig. 1;
fig. 4 is a schematic view of another contact wire assembly connection device of an extended length;
FIG. 5 is a schematic view of the wire clip and the wire clip seat of FIG. 1;
FIG. 6 is a schematic view of the limiting mechanism in FIG. 2;
FIG. 7 is a schematic view of a limiting mechanism in another embodiment;
FIG. 8 is a schematic diagram of a mobile catenary in one embodiment;
FIG. 9 is a top view of the second mast of FIG. 8;
fig. 10 is a side view of the second portal of fig. 9.
Reference numerals illustrate:
100-a first portal, 110-a first vertical frame, 120-a second vertical frame, 130-a transverse frame, 150-a travelling device, 151-a main body, 152-travelling wheels and 153 a-a second guide wheel;
200-second portal frame, 210-first vertical frame, 220-second vertical frame, 230-transverse frame, 250-running gear, 253 a-second guide wheel, 251-main body, 252-running wheel, 241 d-movable pulley, 241-first driving mechanism, 241 a-actuating piece, 241 b-winding drum, 241 c-cable, 242-second driving mechanism, 242 a-first guide wheel, 242 b-counterweight body, 242 c-cable, 242 d-cable;
310-telescopic mechanism, 311-first rod group, 311 a-big arm, 311 b-small arm, 312-second rod group, 312 a-big arm, 312 b-small arm, 313-fixed plate, 320-connecting mechanism, 325-wire clamp seat, 326-wire clamp;
500-a limiting mechanism, 510-a first fixing piece, 520-a second fixing piece, 511-a first adjusting piece and 521-a second adjusting piece; 500 a-a first limiting mechanism;
600 a-a second limiting mechanism; 800-upright posts;
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
The movable contact net system provided by the disclosure can change the relative position between the contact line and the upright post, so that the contact line is moved away from the upper part of the track, and the contact line is abducted for loading operation. The transverse frames of the first portal and the second portal are respectively provided with a traveling device, and the upright posts are provided with contact line assembly connecting devices. The contact line assembly connecting device comprises a telescopic mechanism, a limiting mechanism and a connecting mechanism, wherein one end of the telescopic mechanism is connected to the upright post, and the other end of the telescopic mechanism is provided with the connecting mechanism to connect the contact line assembly. The limiting mechanism limits the extension length of the telescopic mechanism. The contact line assembly is connected in series on the running gear and the telescopic mechanism. When the travelling device moves along the transverse frame, the travelling device drives the contact line and the telescopic mechanism to follow, so that the contact line moves away from the upper part of the track to give way for loading operation; or move the contact wire over the track to provide ready power for the electric locomotive. The telescopic mechanisms provide support and limit for the contact lines, and the telescopic mechanisms on the upright posts are mutually independent and can synchronously move. The telescopic mechanisms limited by the limiting mechanisms on different upright posts can extend out of different lengths. In a row of stand, telescopic machanism extension on the middle stand is less, and on the stand of middle stand both sides, telescopic machanism extension increases gradually for finally the terminal arrangement of telescopic machanism becomes the arc, thereby can adapt to curved track. The technical scheme of the present disclosure will be further described below with reference to the accompanying drawings.
Referring to fig. 1 to 6, fig. 1 is a front view of the contact wire assembly connection device according to an embodiment, fig. 2 is a left side view of the contact wire assembly connection device according to fig. 1, fig. 3 is a top view of the contact wire assembly connection device according to fig. 1, fig. 4 is a schematic view of the contact wire assembly connection device according to fig. 1 when further extended, fig. 5 is a schematic view of a wire clip and a wire clip seat according to fig. 1, and fig. 6 is a schematic view of a limiting mechanism according to fig. 2.
The contact wire assembly connection device comprises a telescopic mechanism 310, a connection mechanism 320 and a limiting mechanism 500, which are arranged at the top end of a column 800.
As shown in fig. 2, in this embodiment, the telescopic mechanism 310 includes a link assembly, and a part of the link assembly is connected to the column 800, and the part of the link assembly is movable relative to the column 800; the other part of the connecting rod assembly is configured as a free end, and the connecting mechanism 320 is disposed at the free end and is used for connecting with the contact wire assembly. Specifically, the link assembly is hinged to a fixing plate 313, and the fixing plate 313 is fixed to the column 800; the connecting mechanism 320 has an upper end for fixing the carrier cable in the contact line assembly and a lower end provided with a wire holder 325 and a wire clip 326 for fixing the contact line. Telescoping mechanism 310 is capable of extending as load cable pulls attachment mechanism 320 away from column 800 and provides support and guidance as attachment mechanism 320 moves away from column 800.
Further, the linkage assembly includes a first rod set 311 and a second rod set 312. The first bar set 311 includes two articulated bars, a large arm 311a and a small arm 311b in the drawing. The second lever set 312 includes a large arm 312a and a small arm 312b that are hinged. One end of the large arm 311a and one end of the large arm 312a are respectively hinged to two points on the fixed plate 313, the other end is respectively hinged to one ends of the small arm 311b and the small arm 312b, and the other ends of the small arm 311b and the small arm 312b are respectively hinged to two points on the connecting mechanism 320. The hinge shafts of the hinge structures are all parallel to the column 800. The large arm 311a and the large arm 312a have equal lengths, and the small arm 311b and the small arm 312b have equal lengths. The first rod group 311 and the second rod group 312 are in plane symmetry. When the angle between the large arm 311a and the small arm 311b becomes smaller, the connecting mechanism 320 approaches the fixing plate 313; when the clip angle becomes large, the connection mechanism 320 is away from the fixing plate 313. The hinge points of the first lever group 311 and the second lever group 312 on the fixed plate 313 do not coincide. In some alternative embodiments, the hinge points of the first rod set 311 and the second rod set 312 and the connecting mechanism 320 do not coincide, so that the entire mechanism can only move in a direction perpendicular to the track to enter or leave the space above the track, which is more stable.
In some alternative embodiments, the hinge points of the first rod set 311 and the second rod set 312 on the fixed plate 313 coincide, and the hinge points of the first rod set 311 and the second rod set 312 coincide with the hinge points of the connection mechanism 320. In other alternative embodiments, only the first bar set 311 or the second bar set 312 may be provided to connect the contact wire assembly.
The wire holder 325 is a connection base of the wire clip 326, in this embodiment, the wire clip 326 includes a jaw portion and a pin portion, the jaw portion clamps a contact line, the pin portion is hinged to the wire holder 325, and an axial direction of the pin portion is a vertical direction. When the contact line is subjected to radial force or bending moment, the pin shaft part can rotate adaptively, so that the contact line is allowed to bend in the horizontal direction instead of the vertical direction, and the impact on the pantograph is reduced.
The limiting mechanism 500 is disposed between relatively movable members of the telescopic mechanism 310, for limiting a range of motion between the relatively movable members. In this embodiment, stop gear sets up in order to restrict the closed angle between first pole group and the stand between first pole group and stand to, set up in order to restrict the closed angle between second pole group and the stand between second pole group and stand. Specifically, the included angle between large arm 311a and large arm 312a may change as they rotate relative to column 800. The stopper mechanism 500 is provided between the large arm 311a and the large arm 312a to restrict the minimum angle therebetween. Specifically, the limiting mechanism 500 is fixed on the fixing plate 313 and located between the large arm 311a and the large arm 312a, and when the included angle between the large arm 311a and the large arm 312a becomes smaller to a predetermined angle, the limiting mechanism 500 interferes with the large arm 311a and the large arm 312a to limit the continuous rotation thereof.
In this embodiment, the limiting mechanism 500 includes a first fixing member 510, a second fixing member 520, a first adjusting member 511, and a second adjusting member 521. The fixed part is a base body, and the adjusting part is arranged on the fixed part and is adjustable relative to the position of the base body. The first fixing member 510 and the second fixing member 520 are fixed to the fixing plate 313, screw holes are provided on the surfaces thereof facing the large arm 311a and the small arm 312b, and the first adjusting member 511 and the second adjusting member 521 are screws, respectively, provided in the screw holes. The extension of the first adjustment member 511 and the second adjustment member 521 from the fixed member may determine the contact position of the first adjustment member and the second adjustment member 521 with respect to the large arm 311a and the large arm 312a to obtain a desired minimum angle between the large arm 311a and the large arm 312 a. In some alternative embodiments, the adjustment member may not be provided, and the contact position between the fixing member and the large arm 311a may be set only by setting the length and position of the fixing member.
Referring to fig. 7, fig. 7 is a schematic view of a limiting mechanism and an arrangement position thereof in another embodiment. In this embodiment, the limiting mechanism is disposed between two rods of the first rod set to define an opening angle between the two rods, and disposed between the first rod set and the upright to define a closing angle between the first rod set and the upright. Specifically, a first limiting mechanism 500a is disposed between the large arm 312a and the fixed plate 313, and the first limiting mechanism 500a is located between the large arm 311a and the large arm 312 a. When the telescopic mechanism 310 is extended outward, the angle between the large arm 311a and the large arm 312a becomes smaller, and the angle between the large arm 312a and the fixed plate 313 becomes larger until contact occurs between the large arm 312a and the first stopper mechanism 500 a. A second stop mechanism 600a is provided between the large arm 312a and the small arm 312b, which is coaxially hinged to the hinge point between the large arm 312a and the small arm 312b. The second stop mechanism 600a includes two stops having a predetermined angle between which the large arm 312a and the small arm 312b can rotate, the two stops defining a maximum angle between the large arm 312a and the small arm 312b.
In the above technical solution, the first limiting mechanism 500a and the second limiting mechanism 600a jointly define the moving ranges of two movable pairs in the telescopic mechanism 310, so as to define the extending range of the whole telescopic mechanism 310, so that when the load cable pulls the connecting mechanism 320 to move, the telescopic mechanism 310 can stop extending when extending to a predetermined position. In this embodiment, since the two lever groups are in a plane symmetrical structure, the same effect can be achieved when the two limit mechanisms are provided between the large arm 311a and the small arm 311b, and between the large arm 311a and the fixing plate 313, respectively. In some alternative embodiments, a stop mechanism is disposed between the two rods of the first rod set and between the two rods of the second rod set to define an opening angle between the two rods of the first rod set and the second rod set. That is, the above-described effect can be achieved by providing one second stopper mechanism 600a between the large arm 311a and the small arm 311b and one second stopper mechanism 600a between the large arm 312a and the small arm 312b.
The upright post 800 and the contact line assembly are connected, supported and positioned through the telescopic mechanism 310 and the connecting mechanism 320, so that the contact line assembly can be stably and reliably far away from and close to the upright post 800 under the support and the guide of the telescopic mechanism 310, and the function of giving way above a track is realized. And, telescopic machanism 310 is link mechanism, when taking place relative position change between its components, can be close to each other and laminating between the member, the member is through pivoted mode removal to the position that is basically parallel to the track, and the space that accomodates the member is less.
The movable contact net system is a part of the contact net system and is used for providing power for trains of the freight yard, the length of the movable contact net system is equal to that of the freight yard, and two ends of the movable contact net are electrically connected with the fixed contact net system. The mobile contact net system shown in the present disclosure can provide mobile contact lines with radians through contact line assembly connection devices with different telescopic lengths, so that the contact net is adapted to a platform with radians. The upright posts for connecting and supporting the contact line assembly do not need to be arranged into an arc shape, so that the construction difficulty can be reduced.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a mobile catenary in one embodiment. The mobile catenary includes a first portal 100, a second portal 200, a plurality of columns 800, contact line assemblies, driving devices, traveling devices, and contact line assembly connection devices. The first door frame 100, the second door frame 200 and the upright post 800 are arranged at the side of the track according to a preset interval, the top ends of the first door frame 100 and the second door frame 200 are used for installing a driving device and a traveling device, and the upright post 800 is used for arranging a telescopic mechanism 310. The cross beams of the first portal 100 and the second portal 200 crossing the tracks are provided with driving devices and traveling devices. The upright 800 is provided with a telescopic mechanism 310 and a connecting mechanism 320, the telescopic mechanism 310 can radially extend and retract along the upright 800, and the tail end of the telescopic mechanism is fixedly connected with the connecting mechanism 320. The two ends of the contact wire assembly are connected to the running gear of the first portal 100 and the second portal 200, and the middle part of the contact wire assembly is connected to the connecting mechanism 320 of the upright 800, forming a series connection to the connecting mechanism 320.
The first portal 100 is disposed on the entrance side of the yard. The first mast 100 includes a first upright 110, a second upright 120, and a cross frame 130. The first and second uprights 110 and 120 are symmetrically disposed at both sides of the rail, the cross frame 130 spans the rail, and both ends of the cross frame 130 are respectively fixed at the top ends of the first and second uprights 110 and 120. The cross frame 130 is provided with a running gear 150, and the driving device is used for driving the running gear 150 to reciprocate on the cross frame 130.
The second portal 200 is disposed on the outbound side of the yard with a distance from the first portal 100. The second mast 200 includes a first stand 210, a second stand 220, and a cross frame 230. The first and second uprights 210 and 220 are symmetrically disposed at both sides of the rail, and the cross frame 230 spans the rail, and both ends thereof are respectively fixed to the top ends of the first and second uprights 210 and 220. The cross frame 230 is provided with a traveling device 250, and the driving device is used for driving the traveling device 250 to reciprocate on the cross frame 230. The running gear 250 is used for connecting the other end of the contact wire assembly.
A plurality of uprights 800 are disposed between the first mast 100 and the second mast 200. The figure schematically shows 6 stand columns, and the limiting mechanisms are arranged on the 6 stand columns, so that the extending length of the contact line assembly connecting devices on the two stand columns in the middle is shortest, the extending lengths of the contact line assembly connecting devices on the stand columns on the two sides are longer, and the extending lengths of the contact line assembly connecting devices on the two stand columns on the outermost sides are longest. The travel of the running gear on the first mast 100 and the second mast 200 is greater than the telescoping travel of the contact wire assembly connection on the outermost column. In the contact line assembly, the two end sections of the carrier cable and the contact line are respectively hung on the second guide wheel 253a and the second guide wheel 153a, one end is connected to the counterweight to be tensioned after the direction of the guide wheel is changed, and the other end is fixed on the portal frame.
When the two travelling devices move towards 220 on the cross beam, the whole contact line assembly can be pulled to move towards 220, and the contact line assembly in a tensioning state can pull the contact line assembly connecting devices on the upright posts to extend and finally reach the respective limit extending positions, so that the contact line assemblies form an arc shape. When the two travelling devices move towards the direction 210, the contact line assembly can be driven to integrally move towards the direction 210, and each contact line assembly connecting device is pulled to retract. The travel of the running gear is greater than the expansion range of the contact wire assembly connecting device, and the contact wire assembly after the counterweight is tensioned can also pull the contact wire assembly to automatically compensate in the length direction, so that each contact wire assembly connecting device can retract to the original position.
The cross frame 130 of the first portal 100 is provided with a running gear 150, the cross frame 230 of the second portal 200 is provided with a running gear 250, two ends of the contact line assembly are respectively connected to the running gear 150 and the running gear 250, and the running gear 150 and the running gear 250 can drive the contact line assembly to be wholly far away from or close to the upright post 800 when synchronously moving in the same direction. The drive mechanism on the first mast 100 is used to drive the running gear 150 to reciprocate on the cross frame 130 and the drive mechanism on the second mast 200 is used to drive the running gear 250 to reciprocate on the cross frame 230.
On the second mast 200, the drive mechanism includes a first drive mechanism 241 and a second drive mechanism 242. The running gear 250 includes a main body 251 and a plurality of running wheels 252. The main body 251 is a base body to which other parts are mounted, and the traveling wheels 252 are used to support the main body 251 to travel on the cross frame 230. The axis of the travel wheels 252 is perpendicular to the upper surface of the cross frame 230 so that the travel device 250 can carry loads from tension in the contact wire assembly. The traveling device 250 is further provided with a second guide wheel 253a and a movable pulley 241d, the second guide wheel 253a is used for being connected with the second driving mechanism 242, and the movable pulley 241d is used for being connected with the first driving mechanism 241. The main body 251 is a multi-layer structure formed by rectangular plates, and the number of the traveling wheels 252 is 8, and the traveling wheels are distributed on four corners of two layers of rectangular plates. The outer circumferential surface of the traveling wheel 252 is provided with an annular groove, which can be engaged with the cross frame 230, so that the main body 251 is prevented from being displaced in the vertical direction, and is ensured to reciprocate only along the length direction of the cross frame 230.
The first driving mechanism 241 includes an actuator 241a, a spool 241b, and a cable 241c. The actuator 241a is a motor, the spool 241b is coaxially disposed on an output shaft of the actuator 241a, one end of the cable 241c is wound around the spool 241b, and the other end is fixed to the cross frame 230 after bypassing the movable pulley 241d on the main body 251, and the cable 241c and the movable pulley 241d form a movable pulley structure. When the actuator 241a drives the drum 241b to rotate, the cable 241c is wound around the surface of the drum 241b, thereby pulling the traveling device 250 to approach the first stand 210.
The second driving mechanism 242 includes two first guide wheels 242a, a weight body 242b, a cable 242c, and a cable 242d. The weight body 242b is used for providing gravitational attraction to be used as driving force, the stay 242c and the stay 242d are two sections of one stay and are used for transmitting the driving force to the running gear 250, and the first guide wheel 242a is used for converting vertical force into horizontal force. Specifically, two first guide wheels 242a are disposed on top of the second stand 220, and their axes are horizontal and parallel, and along the extending direction of the rail. The top end of the counterweight body 242b is provided with a pulley, and the inhaul cable 242c and the inhaul cable 242d form a movable pulley block structure with the pulley, and the counterweight body 242b is suspended on the second stand 220 through the two first guide wheels 242 a. The ends of the cables 242c and 242d are connected to the running gear 250, so that the weight of the weight body 242b is transferred to the running gear 250 to drive the running gear 250 to move on the cross frame 230 in a direction approaching the second stand 220.
More specifically, one end of the cable 242c connected to the running gear 250 is connected to the carrier cable through a second guide wheel 253a provided on the main body 251. The axis of the second guide wheel 253a is vertical, and the stay cable 242c winds around one fourth of the outer peripheral surface of the second guide wheel 253a and then turns 90 degrees, so that the stay cable originally parallel to the transverse frame 230 is changed into the stay cable perpendicular to the transverse frame 230, and is collinear with the carrier cable, thereby realizing connection. The weight of weight 242b not only provides the motive force to move running gear 250, but also the motive force to tension the carrier cable.
The cross frame 130 of the first mast 100 has a drive device having the same structure as the first drive mechanism 241 and the second drive mechanism 242. The traveling device 150 includes a main body 151, a plurality of traveling wheels 152, and a second guide wheel 153a. The construction and connection of the above-mentioned devices are the same as the corresponding devices on the first portal 100, and will not be repeated here.
According to the technical scheme, only two driving devices which are actively driven are needed, so that synchronous movement of the running gear 150 and the running gear 250 is conveniently realized, and the difficulty and cost of electrification control are reduced. And the gravity of the counterweight body 242b is utilized to provide driving force and tension on the carrier cable, other mechanisms are not needed for driving, the structure is simple and reliable, and energy sources are saved. The running gear 250 is driven to move through the movable pulley block, so that the power requirement of a motor can be reduced.
In some alternative embodiments, the cables 242c and 242d may be directly connected to the body 251. In other alternative embodiments, counterweight 242b is coupled to running gear 250 via a cable and a guide wheel.
In some alternative embodiments, the first and second drive mechanisms 241, 242 may each be a solution of the actuator 241a, the spool 241b, and the cable 241c. In other alternative embodiments, the first driving mechanism 241 may also be a nut-screw mechanism, where a nut is fixed on the running gear 250, and the screw is parallel to the cross frame 230, and the motor drives the screw to rotate forward and backward to implement the reciprocating movement of the running gear 250. In alternative embodiments, running gear 250 may also be driven along cross frame 230 by pneumatic means, hydraulic means, or a rack and pinion arrangement. In other alternative embodiments, running gear 250 may also be driven to reciprocate along cross frame 230 by a crank block mechanism.
The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a contact line subassembly connecting device sets up in the used mobile contact net system of track traffic, mobile contact net system includes the stand that is used for supporting the contact line subassembly, its characterized in that includes:
the telescopic mechanism comprises relatively movable components, one end of the whole telescopic mechanism is hinged to the upper part of the upright post, the other end of the whole telescopic mechanism is a free end, and the telescopic mechanism can stretch and retract along the direction transverse to the upright post under the action of external force so that the free end enters or leaves a space above the track in the horizontal direction;
the limiting mechanism is arranged between relatively movable components in the telescopic mechanism and used for limiting the movable range between the relatively movable components; and
the connecting mechanism is arranged at the free end of the telescopic mechanism and is used for connecting the contact line assembly;
the telescopic mechanism is driven by the contact line assembly to stretch and retract, and the limiting mechanism can limit the stretching length of the telescopic mechanism;
the telescopic mechanism is a connecting rod assembly, one part of the structure of the connecting rod assembly is hinged to the upright post, the other part of the structure can move relative to the one part of the structure so as to enable the connecting rod assembly to be telescopic relative to the upright post, the tail end of the other part of the structure is the free end, and the limiting mechanism can limit the relative rotation angle between the components of the connecting rod assembly;
the connecting rod assembly comprises a hinging rod group, the hinging rod group comprises two hinged rods, and two ends of the hinging rod group are hinged with the upright post and the contact line assembly respectively;
the hinge rod group comprises a first rod group and a second rod group which are symmetrically arranged, the first rod group and the second rod group both comprise two hinged rods, two ends of the first rod group are respectively hinged with the upright post and the contact line assembly, and two ends of the second rod group are respectively hinged with the upright post and the contact line assembly;
the limiting mechanism comprises a first limiting mechanism and a second limiting mechanism, and the second limiting mechanism is arranged between two rods of the first rod group and between two rods of the second rod group so as to limit the opening angle between the two rods of the first rod group and the second rod group.
2. The contact wire assembly connection device of claim 1, wherein the first limiting mechanism is disposed between the first rod set and the post to limit a closing angle between the first rod set and the post.
3. The contact wire assembly connection device of claim 1, wherein the first stop mechanism is disposed between the first bar set and the post to limit a closing angle between the first bar set and the post, and wherein the first stop mechanism is disposed between the second bar set and the post to limit a closing angle between the second bar set and the post.
4. The contact wire assembly connection device of claim 1, wherein the first limiting mechanism comprises a fixed member and an adjustment member, the adjustment member being adjustably positionable connected to the fixed member, the fixed member being adapted to be connected to the telescoping mechanism.
5. The contact wire assembly connection device of any one of claims 1-4, wherein the hinge points at which the first and second rod sets are connected to the upright do not coincide.
6. The contact wire assembly connection device of any one of claims 1-4, wherein the hinge points at which the first and second lever sets are connected to the contact wire assembly do not coincide.
7. The contact wire assembly connection device of any one of claims 2-4, wherein the hinge axis of the link assembly is parallel to the upright.
8. A mobile catenary system for providing electric power for rail transit, comprising
The first portal comprises a vertical frame and a transverse frame, wherein the vertical frame is arranged at the side of the track, and the transverse frame is fixed above the vertical frame and spans across the track;
the second portal comprises a vertical frame and a transverse frame, the vertical frame is arranged at the side of the track, the transverse frame is fixed above the vertical frame and spans the track, and a preset distance is reserved between the first portal and the second portal;
a plurality of uprights arranged between the first and second shelves;
the contact line assembly connecting devices are respectively arranged on the upright posts, and are any one of the contact line assembly connecting devices in claims 1-7, and the contact line assembly connecting devices have different telescopic strokes; and
and the contact line assembly is positioned between the first portal frame and the second portal frame, and is connected with the contact line assembly connecting devices on the upright posts in series.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010756266.4A CN112026591B (en) | 2020-07-31 | 2020-07-31 | Contact line assembly connecting device and mobile contact net system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010756266.4A CN112026591B (en) | 2020-07-31 | 2020-07-31 | Contact line assembly connecting device and mobile contact net system |
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| CN112026591A CN112026591A (en) | 2020-12-04 |
| CN112026591B true CN112026591B (en) | 2024-04-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022143216A1 (en) * | 2020-12-28 | 2022-07-07 | 兰州新伟车辆装备有限公司 | Compensation swing arm-based mobile catenary and operation method |
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