CN215883324U

CN215883324U - Pantograph for light rail subway

Info

Publication number: CN215883324U
Application number: CN202121905564.1U
Authority: CN
Inventors: 庄仲生
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-02-22
Anticipated expiration: 2031-08-13

Abstract

The application relates to a pantograph for a light rail subway, which comprises a fixing part, a power part, a frame structure part and a supporting part which are arranged in a modularized manner; the frame structure component comprises a lower arm rod, an upper arm rod and a pull rod, one end of the lower arm rod is rotatably connected to the fixing component, the other end of the lower arm rod is rotatably connected to one end of the upper arm rod, and a plurality of bearing groups are arranged on a rotating shaft of the lower arm rod, which is close to one end of the upper arm rod; one end of the pull rod is rotatably connected to the fixed part, the other end of the pull rod is rotatably connected to one end, close to the lower arm rod, of the upper arm rod, and the rotating shafts of the upper arm rod, the lower arm rod and the pull rod are horizontally arranged and are parallel to each other; the fixed part is used for being fixed on the vehicle body, and the power part is arranged on the fixed part and can enable the lower arm lever to rotate; the support component sets up and keeps away from lower arm pole one end at the upper arm pole to be used for with the net twine butt. This application has the effect of improving pantograph along with net nature and shock resistance.

Description

Pantograph for light rail subway

Technical Field

The application relates to the technical field of traffic power supply, in particular to a pantograph for a light rail subway.

Background

The pantograph is an electrical device which enables an electric traction locomotive to obtain electric energy from a contact net, is generally installed on the roof of the locomotive or a bullet train and supplies power to an electrical system of the whole train, can ensure that the pantograph has good contact state and contact stability with the contact net under various tracks and speeds, and is widely applied to subways and light rails along with the upgrade of an indoor mode, so that the performance requirements on the pantograph are more specific and strict.

Aiming at the related technologies, the speed of the urban locomotives such as light rails, subways and the like is generally required to be lower than 120km/h, the current of the locomotives is required, the impact of hard points of a pantograph-catenary during the operation of a rigid contact network cable of the light rail subway is large, and the inventor thinks that the pantograph is easy to impact during the operation process, so that the pantograph cannot be quickly reset, and the power failure is caused.

SUMMERY OF THE UTILITY MODEL

In order to improve following net nature and the shock resistance of pantograph, this application provides a light rail is pantograph for subway.

The application provides a pantograph for light rail subway adopts following technical scheme:

a pantograph for a light rail subway comprises a fixing part, a power part, a frame structure part and a supporting part which are arranged in a modularized manner; the frame structure component comprises a lower arm rod, an upper arm rod and a pull rod, one end of the lower arm rod is rotatably connected to the fixing component, the other end of the lower arm rod is rotatably connected to one end of the upper arm rod, and a plurality of bearing sets are arranged on a rotating shaft of the lower arm rod, which is close to one end of the upper arm rod; one end of the pull rod is rotatably connected to the fixing part, the other end of the pull rod is rotatably connected to one end, close to the lower arm rod, of the upper arm rod, and the rotating shafts of the upper arm rod, the lower arm rod and the pull rod are horizontally arranged and are parallel to each other; the fixed part is used for being fixed on a vehicle body, and the power part is arranged on the fixed part and can enable the lower arm lever to rotate; the support component is arranged at one end, far away from the lower arm rod, of the upper arm rod and is used for being abutted to the net wire.

By adopting the technical scheme, the power part enables the lower arm rod to rotate, so that one end, far away from the power part, of the lower arm rod drives the upper arm rod to ascend, under the action of the pull rod, the angle between the upper arm rod and the lower arm rod is gradually increased, one end, far away from the lower arm rod, of the upper arm rod ascends, and then the support part is driven to ascend until the support part is abutted to a network cable, and the ascending and descending action of the pantograph is realized; the lower armed lever, go up armed lever and the pull rod that set up, rotation through lower armed lever realizes the lift of support component on the upper armed lever, adopts the bearing group for the connection of going up armed lever and lower armed lever has higher intensity and prevents the side impact ability, promotes the holding capacity to the hard point impact of net twine, prevents effectively that the side from moving, can reduce the internal resistance of pantograph lift in-process simultaneously, has improved the following net nature of pantograph.

Optionally, the frame structure component further includes a balance bar, one end of the balance bar is hinged to one end of the lower arm bar close to the upper arm bar, the other end of the balance bar is hinged to the support component, and the support component can be made horizontal.

By adopting the technical scheme, the arranged balance rod, the lower arm rod and the supporting part can form a four-bar mechanism, when the pantograph is lifted, the supporting part can rotate around the rotating shaft of the upper arm rod, the supporting part is always kept in a horizontal state, the contact area between the supporting part and a network cable is ensured, and the power consumption in a vehicle is further ensured; meanwhile, two ends of the balancing rod are hinged, so that the influence of environmental factors on the rotating position is reduced, and the reliability of the balancing rod is improved.

Optionally, the frame structure component further includes a damper, and two ends of the damper are respectively hinged to the lower arm rod and the upper arm rod.

By adopting the technical scheme, the arranged damper can effectively overcome the arc discharge phenomenon caused by external resistance and vehicle bump, and the network following performance of the supporting component is improved.

Optionally, the power part includes gasbag, stay wire frame and wire rope, the gasbag sets up on fixed part and communicates with the air supply, the stay wire frame sets up down armed lever below and be connected with the gasbag, wire rope one end sets firmly on the stay wire frame, and the other end sets firmly on the lower armed lever, just wire rope sets up around the axis of rotation that lower armed lever kept away from upper arm lever one end.

By adopting the technical scheme, when the pantograph is controlled to ascend and descend, the air bag is inflated or deflated, so that the air bag drives the wire pulling frame to pull one end of the steel wire rope to be far away from or close to the lower arm rod rotating shaft, and further pulls the lower arm rod at the other end of the steel wire rope to rotate, and the ascending and descending are realized; the air bag, the wire drawing frame and the steel wire rope are arranged, compressed air is used as a power source, and the pantograph is pushed to move through expansion and contraction of the air bag, so that the force of the lifting pantograph is more sensitive, stable and soft, the speed is uniform, and the reliability of the lifting movement is improved.

Optionally, the support component includes balance arm, mounting bracket and at least one slide bar strip, balance arm perpendicular to upper arm pole, just upper arm pole and balance pole are all rotated and are connected on the balance wall, the mounting bracket sets up at balance arm both ends, just the slide bar strip is parallel with balance arm.

Through adopting above-mentioned technical scheme, balance arm, mounting bracket and the slide strip that sets up, at pantograph lift in-process, the balance arm rotates under the effect of balancing pole for the slide strip remains the horizontality throughout and net twine contact, can install a plurality of slide strips according to the condition on the mounting bracket, can increase the current-carrying capacity, and the suitability is higher.

Optionally, the two ends of the slide bar strip are provided with elastic pieces, the slide bar strip is connected with the mounting frame through the elastic pieces, and the elastic pieces can enable the slide bar strip to tend to abut against the net wires.

Through adopting above-mentioned technical scheme, the elastic component of setting can make the slide strip tightly support all the time on the net twine, makes simultaneously to have certain buffering space between slide strip and the net twine, can effectively alleviate the impact of net twine hard point to slide strip for advancing of pantograph is more steady.

Optionally, an insulating spacer is disposed between the bearing and the rotating shaft on the frame structure component.

By adopting the technical scheme, the arranged insulating gasket reduces gaps between the shaft and the bearing, reduces collision between the shaft and the bearing, avoids generating electric corrosion damage, and simultaneously avoids burning the bearing or the surface of the shaft; on the other hand, the direct contact between the shaft and the bearing is avoided, the conduction is avoided, and the energy loss is reduced.

Optionally, the fixed part includes underframe, a plurality of installation landing leg and crashproof cushion block, the underframe sets up to returning the font, the installation landing leg sets up underframe week side for it is fixed with the automobile body insulation, crashproof cushion block sets up on the underframe, and the correspondence sets up go up armed lever and underarm pole below.

Through adopting above-mentioned technical scheme, underframe, installation landing leg and the crashproof cushion of setting can wholly support the pantograph to fixed with the automobile body, strengthen the wholeness of automobile body and pantograph, improve the stability of pantograph, through crashproof cushion, can completely cut off the contact of upper arm pole, underarm pole and underframe, avoid upper arm pole and underarm pole to the impact of underframe when descending, the buffering of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. each part of the pantograph is in modular design, and can be configured and designed according to different current requirements so as to adapt to the characteristics of differentiation and customization of urban requirements, so that the adaptability is high; the lower arm rod, the upper arm rod and the pull rod are arranged, the lifting of the upper support part of the upper arm rod is realized through the rotation of the lower arm rod, and the bearing set is adopted, so that the connection between the upper arm rod and the lower arm rod has higher strength and lateral impact resistance, the bearing capacity on the hard point impact of a network cable is improved, the lateral movement is effectively prevented, the internal resistance in the lifting process of the pantograph is reduced, and the networking following performance of the pantograph is improved;

2. the balance rod can form a four-bar mechanism together with the lower arm rod and the supporting part, when the pantograph is lifted, the supporting part can rotate around a rotating shaft of the upper arm rod, the supporting part is always kept in a horizontal state, the contact area between the supporting part and a network cable is ensured, and the power utilization in a vehicle is further ensured; meanwhile, the two ends of the balancing rod are hinged, so that the influence of environmental factors on the rotating position is reduced, and the reliability of the balancing rod is improved;

3. the arranged insulating gasket reduces gaps between the shaft and the bearing, reduces collision between the shaft and the bearing, avoids generating electric corrosion damage, and simultaneously avoids burning the bearing or the surface of the shaft; on the other hand, the direct contact between the shaft and the bearing is avoided, the conduction is avoided, and the energy loss is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of a pantograph for a light rail subway in the embodiment of the present application.

Fig. 2 is a schematic view of the structure of the fixing member of fig. 1.

Fig. 3 is a schematic view of the construction of the frame construction components of fig. 1.

Fig. 4 is a schematic structural view of the support member of fig. 1.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Description of reference numerals: 1. a fixing member; 11. a bottom frame; 12. mounting support legs; 13. an anti-collision cushion block; 2. a power component; 21. an air bag; 22. connecting plates; 23. a wire pulling frame; 24. a wire guide rail; 25. a wire rope; 3. a frame structure member; 31. a lower arm lever; 311. a hinge plate; 32. an upper arm lever; 321. rotating the lug; 322. a bearing set; 323. an auxiliary lever; 324. tensioning the rope; 33. a pull rod; 331. connecting sleeves; 34. a balancing pole; 35. a damper; 36. connecting a lug plate; 4. a support member; 41. a balance arm; 42. a mounting frame; 43. a slider bar; 44. a suspension member; 441. a support frame; 442. a connecting cylinder; 443. a connecting nut; 444. connecting a screw rod; 445. a limit nut; 5. an air source control box; 6. an electrical control box.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses pantograph for light rail subway. Referring to fig. 1, the pantograph for the light rail subway comprises a fixing part 1, a power part 2, a frame structure part 3, a supporting part 4, an air source control box 5 and an electric control box 6 which are arranged in a modularized manner; the fixed member 1 is fixed to a vehicle body, the power member 2 is provided on the fixed member 1 and connected to the frame structure member 3, and the support member 4 is provided on the top end of the frame structure member 3. The air source control box 5 is fixed on the fixed part 1 through bolts, and an air source control system is integrated in the air source control box 5 and connected with the power part 2. An electric control box 6 is fixed on the fixed part 1 through bolts and is electrically connected with an air source control box 5, and a lifting bow position display system, an ADD automatic bow lowering system, a main breaking system, a fault recovery system and a network-free area automatic bow lowering system are integrated in the electric control box 6 for selection and matching.

Referring to fig. 1 and 2, the fixing member 1 includes a bottom frame 11, four sets of mounting legs 12 and crash pad blocks 13, the bottom frame 11 is in a shape of a Chinese character 'hui', the mounting legs 12 are welded to two sides of the bottom frame 11 along a length direction and are close to included angles, the mounting legs 12 are connected to insulators on a roof through bolts, and the crash pad blocks 13 are provided with three sets of mounting legs and are welded to a top wall of the bottom frame 11 below the frame structure member 3.

Referring to fig. 1, the frame structure part 3 includes a lower arm bar 31, an upper arm bar 32, a tension bar 33, a stabilizer bar 34, and a damper 35; the lower arm rod 31 is I-shaped and is formed by welding seamless steel tubes, so that the strength is high and the weight is light; the upper arm rod 32 is trapezoidal and is formed by seamless welding of special aluminum alloy pipes, so that the strength is guaranteed, the weight is reduced, and the action is more flexible.

Referring to fig. 2, a side lever of the upper arm lever 32 near the narrower end is welded with a rotating lug 321, one end of the lower arm lever 31 is rotatably connected to the rotating lug 321 through a bearing, and the other end is rotatably connected to the bottom frame 11 through a bearing seat; the horizontal segment cover that the lower arm 31 of I font is close to upper arm 32 one end is established in the axis of rotation, and coaxial being fixed with two sets of bearing group 322 between axis of rotation and the horizontal segment, and two sets of bearings are close to respectively and rotate auricle 321 setting for upper arm 32 has higher intensity and prevents the side impact ability, reduces fatigue crack, and the support of being convenient for improves the bow net complex condition. The rotation axis of the lower arm lever 31 is horizontal and perpendicular to both the length directions of the upper arm lever 32 and the lower arm lever 31.

Referring to fig. 2 and 3, a hinge plate 311 is welded to the side wall of the horizontal section of the lower arm lever 31 near one end of the upper arm lever 32, one end of the balance bar 34 is hinged to the hinge plate 311, the other end is hinged to the support member 4, and the rotation axis of the balance bar 34 is parallel to and not coaxial with the rotation axis of the lower arm lever 31. An auxiliary rod 323 parallel to cross rods at two ends is welded between the rods at two sides of the upper arm rod 32, so that the upper arm rod 32 can be reinforced; the damper 35 is set to be of a high sensitivity type, and one end is hinged to the lower arm rod 31, and the other end is hinged to the auxiliary rod 323, so that the arc discharge phenomenon caused by external resistance and vehicle jolt can be effectively overcome. A pair of tensioning ropes 324 are arranged on two side rods of the upper arm rod 32 in a crossed mode, one end of each tensioning rope 324 is hinged to a corner of the auxiliary rod 323 and the side rod of the upper arm rod 32 through a tightener, the other end of each tensioning rope 324 is hinged to the upper arm rod 32 in a crossed mode, integrity of the upper arm rod 32 can be enhanced, and strength of the upper arm rod 32 is improved.

Referring to fig. 3, a pair of connection lugs 36 is welded at the narrower end of the upper arm lever 32, one end of the pull rod 33 is rotatably connected to the connection lugs 36 through bearings, the other end of the pull rod 33 is rotatably connected to the bottom frame 11 through bearings, and the bearings at the two ends of the pull rod 33 are respectively sleeved with a connecting sleeve 331, the pull rod 33 is made of seamless steel pipes, the connecting sleeves 331 are welded at the two ends of the pull rod 33 and used for protecting the bearings, so that the damage of the external environment to the outer leakage bearings is reduced, and the service life of the pull rod 33 is prolonged; meanwhile, the rotational axis of the pull rod 33 is parallel to and non-coaxial with the lower arm lever 31. Insulating gaskets are fixedly adhered between the bearing on the frame structure component 3 and the rotating shaft.

Referring to fig. 1 and 2, the power unit 2 includes an airbag 21, a connecting plate 22, a tie bar 23, a wire guide rail 24, and a wire rope 25, the connecting plate 22 is provided with a plurality of connecting plates, one end of each connecting plate is welded to the bottom frame 11, the other connecting plates 22 are connected by needle bearings, and the other end of each connecting plate 22 is welded to the tie bar 23; the air bag 21 is sleeved on the connecting plate 22, one end of the air bag is fixedly bonded on the bottom frame 11, and the other end of the air bag is fixedly bonded on the wire-pulling frame 23 and communicated with the air source control system. The two wire guides 24 are welded on the side wall of the horizontal section of the lower arm rod 31 close to one end of the bottom frame 11 and are symmetrical about the vertical section of the lower arm rod 31; the wire pulling frame 23 is arranged below the lower arm rod 31, two steel wire ropes 25 are arranged, one end of each steel wire rope is fixed on the wire pulling frame 23 through a bolt, and the other end of each steel wire rope surrounds the wire guide rail 24 and is fixed on the lower arm rod 31 through a bolt.

Referring to fig. 1 and 4, the support member 4 includes a balance arm 41, a mounting bracket 42, an elastic member, a suspension member 44 and two slider bars 43, the balance arm 41 is parallel to the rotation axis of the lower arm lever 31, the wider end of the upper arm lever 32 is sleeved on the balance arm 41 and is rotatably connected to the balance arm 41 through a bearing, and the balance lever 34 is hinged to the side wall of the upper arm lever 32 sleeved on one end of the balance arm 41. The slider bar 43 is parallel to the balance arm 41 and symmetrical with respect to the balance arm 41, and both ends of the slider bar 43 are provided on the mount frame 42 through elastic members and suspension members 44.

Referring to fig. 4 and 5, the mounting brackets 42 are bolted to both ends of the balance arm 41, the suspension member 44 is provided in two pieces corresponding to any one of the mounting brackets 42, the suspension member 44 includes a support frame 441, a connecting cylinder 442, a connecting nut 443, a connecting screw 444, and a limit nut 445, and the slider bar 43 is bolted to the support frame 441; two connecting cylinders 442 are provided and are respectively hinged on the supporting frame 441 and the mounting frame 42, and the hinge shaft of the connecting cylinders 442 is parallel to the balance arm 41; the connecting nut 443 is welded at the movable end of the connecting cylinder 442, and two ends of the connecting screw 444 respectively extend into the two connecting cylinders 442 and are in threaded connection with the connecting nut 443; a spacing nut 445 is disposed between the connecting screw 444 and the two connecting nuts 443 and is coaxially welded at the midpoint of the connecting screw 444. The elastic member may be a spring or a leaf spring, and the leaf spring is installed on the supporting frame 441 in the embodiment of the present application, and the sliding plate strip 43 tends to abut against the net wire.

The implementation principle of the pantograph for the light rail subway in the embodiment of the application is as follows: when the pantograph is controlled to ascend and descend, the air bag 21 is inflated or deflated through the air source control system, so that the air bag 21 drives the connecting plate 22 to rotate and pushes the wire pulling frame 23 to move, one end of the steel wire rope 25 is pulled to slide along the wire guide rail 24, the lower arm rod 31 at the other end of the steel wire rope 25 is pulled to rotate, and the rotation of the lower arm rod 31 and the ascending and descending of one end far away from the steel wire rope 25 are realized; under the action of the pull rod 33, the angle between the upper arm rod 32 and the lower arm rod 31 is changed, so that one end, away from the lower arm rod 31, of the upper arm rod 32 rises or falls, the supporting component 4 is driven to rise and fall, a bearing group 322 is adopted between the upper arm rod 32 and the lower arm rod 31, the connection between the upper arm rod 32 and the lower arm rod 31 has higher strength and lateral impact resistance, the bearing capacity on the hard point impact of a network cable is improved, the lateral movement is effectively prevented, and the internal resistance in the pantograph lifting process can be reduced; under the cooperation of the balance bar 34, the sliding bar strip 43 is kept horizontal all the time until the sliding bar strip abuts against or is far away from the cable, and the lifting action of the pantograph is realized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pantograph for light rail subway which characterized in that: the device comprises a fixed component (1), a power component (2), a frame structure component (3) and a supporting component (4) which are arranged in a modularized manner; the frame structure component (3) comprises a lower arm rod (31), an upper arm rod (32) and a pull rod (33), one end of the lower arm rod (31) is rotatably connected to the fixed component (1), the other end of the lower arm rod is rotatably connected to one end of the upper arm rod (32), and a plurality of bearing groups (322) are arranged on a rotating shaft of one end, close to the upper arm rod (32), of the lower arm rod (31); one end of the pull rod (33) is rotatably connected to the fixed part (1), the other end of the pull rod is rotatably connected to one end, close to the lower arm rod (31), of the upper arm rod (32), and rotating shafts of the upper arm rod (32), the lower arm rod (31) and the pull rod (33) are horizontally arranged and are parallel to each other; the fixed part (1) is used for being fixed on a vehicle body, and the power part (2) is arranged on the fixed part (1) and can enable the lower arm lever (31) to rotate; the supporting component (4) is arranged at one end, far away from the lower arm lever (31), of the upper arm lever (32) and is used for being abutted against the net wire.

2. The pantograph for a light rail subway according to claim 1, wherein: the frame structure component (3) further comprises a balance rod (34), one end of the balance rod (34) is hinged to one end, close to the upper arm rod (32), of the lower arm rod (31), the other end of the balance rod is hinged to the supporting component (4), and the supporting component (4) can be made to be horizontal.

3. The pantograph for a light rail subway according to claim 1, wherein: the frame structure component (3) further comprises a damper (35), and two ends of the damper (35) are hinged to the lower arm rod (31) and the upper arm rod (32) respectively.

4. The pantograph for a light rail subway according to claim 1, wherein: the power part (2) comprises an air bag (21), a wire pulling frame (23) and a steel wire rope (25), the air bag (21) is arranged on the fixing part (1) and communicated with an air source, the wire pulling frame (23) is arranged below the lower arm rod (31) and connected with the air bag (21), one end of the steel wire rope (25) is fixedly arranged on the wire pulling frame (23), the other end of the steel wire rope is fixedly arranged on the lower arm rod (31), and the steel wire rope (25) is arranged around a rotating shaft at one end of the lower arm rod (31) far away from the upper arm rod (32).

5. The pantograph for a light rail subway as claimed in claim 2, wherein: the supporting part (4) comprises a balance arm (41), a mounting frame (42) and at least one sliding plate strip (43), the balance arm (41) is perpendicular to the upper arm rod (32), the upper arm rod (32) and the balance rod (34) are connected to the balance arm (41) in a rotating mode, the mounting frame (42) is arranged at two ends of the balance arm (41), and the sliding plate strip (43) is parallel to the balance arm (41).

6. The pantograph for light rail subways according to claim 5, wherein: elastic pieces are arranged at two ends of the sliding strip (43), the sliding strip (43) is connected with the mounting frame (42) through the elastic pieces, and the elastic pieces can enable the sliding strip (43) to tend to abut against the net wires.

7. The pantograph for a light rail subway according to claim 1, wherein: and insulating gaskets are arranged between the bearings on the frame structure component (3) and the rotating shaft.

8. The pantograph for a light rail subway according to claim 1, wherein: fixed part (1) includes underframe (11), a plurality of installation landing leg (12) and crashproof cushion (13), underframe (11) sets up to returning the font, installation landing leg (12) set up underframe (11) week side for it is fixed with the automobile body insulation, crashproof cushion (13) set up on underframe (11), and correspond the setting and be in go up armed lever (32) and underarm lever (31) below.