Automatic compensation mobile overhead line system

Abstract

The utility model relates to the technical field of mobile contact networks, in particular to an automatic compensation mobile contact network, which is sequentially provided with a compensation end steel rod, a plurality of single rods, a plurality of gantries and a compensation end steel rod along the direction of a track, and the single rods are rotatably connected with a cantilever; the contact suspension is arranged above the track, one end of the contact suspension is connected with the compensation end steel rod, the other end of the contact suspension is connected with the compensation end steel rod, the contact suspension comprises a compensation rope, a wire clamp, a contact wire, a carrier cable and a compensation wheel, the contact wire and the carrier cable are transversely arranged in parallel, and the contact wire and the carrier cable on the same side are connected with the same compensation rope through the wire clamp. The carrier cable and the contact wire are connected through the wire clamp, so that the carrier cable and the contact wire form an up-down symmetrical structure, deformation of the carrier cable and the contact wire of the structure caused by thermal expansion and cold contraction can be counteracted, the dropper inclination phenomenon is reduced, and the problem that a contact net is not in place is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mobile contact net, concretely is a kind of mobile contact net of automatic compensation. BACKGROUND

[0002] Railway container loading and unloading station, railway freight station, rail transit repair shop and other places are not allowed to have contact line and load-bearing cable above track during loading and unloading operation, but need contact line to provide power after operation is completed. Traditional traction mode is to pull freight car into and out of loading and unloading operation area by internal combustion engine, or to realize freight loading and unloading by means of inertial sliding of electric locomotive through loading and unloading operation area. With the advancement of railway electrification traction, electric locomotive is used to replace internal combustion engine for transportation of Chinese railway trunk line, and it is difficult to control locomotive by means of inertial sliding through loading and unloading operation area, which is not conducive to practical use. Mobile contact net can realize back and forth movement of contact line and load-bearing cable, so that contact line is located directly above rail when power supply is needed, and moves upward or sideward out of track gauge during loading and unloading operation, which does not affect operation safety.

[0003] Existing public technology applies tension to contact net by gravity, and generally adopts compensation mode of load-bearing cable and contact line respectively. Due to different structures of load-bearing cable and contact line, elongation of thermal deformation is also different, which easily leads to inclination of dropper and causes contact net to be out of position. UTILITY MODEL CONTENT

[0004] In view of deficiencies of prior art, the utility model provides a kind of mobile contact net of automatic compensation, load-bearing cable and contact line are connected by wire clamp, so that load-bearing cable and contact line form symmetrical structure up and down. Deformation of load-bearing cable and contact line due to thermal expansion and contraction can be offset each other, which reduces inclination of dropper and solves the problem of contact net being out of position.

[0005] The utility model provides the following technical scheme:

[0006] A kind of mobile contact net of automatic compensation, compensation end steel pole, multiple single poles, multiple portal and power end steel pole are sequentially arranged along track direction, single pole is rotatably connected with wrist arm;Contact suspension is arranged above track, one end of contact suspension is connected with compensation end steel pole, the other end of contact suspension is connected with power end steel pole, contact suspension includes compensation rope, wire clamp, contact line, load-bearing cable and compensation wheel, contact line and load-bearing cable are transversely parallel arranged, contact line and load-bearing cable on the same side are connected with the same compensation rope by wire clamp, compensation wheel is arranged in the middle of compensation rope, one side of compensation wheel is connected with compensation end steel pole, the other side of compensation wheel is connected with power end steel pole;Dropper is fixed between contact line and load-bearing cable.

[0007] Further, the portal frame comprises two upright columns and a cross beam, the top of the two upright columns is fixed with the bottom of the cross beam, and a triangular frame is fixed between the upright columns and the cross beam; the bottom center of the cross beam is fixed with an I-beam, the bottom of the I-beam is fixed with the top of a second insulator, and the bottom of the second insulator is fixed with the top of a busbar; the busbar is fixed with a contact wire.

[0008] Further, the first weight frame is connected with the contact suspension through the first steel wire rope and the first steering wheel in sequence, and the first steering wheel is connected with the compensation end steel pole through the mounting frame.

[0009] Further, the bottom side wall of the power end steel pole is fixed with a base, the top of the base is connected with the second weight frame through a transmission device, the top of the second weight frame is connected with the contact suspension through the second steel wire rope and the second steering wheel in sequence, and the second steering wheel is connected with the power end steel pole through the mounting frame.

[0010] Further, the side wall of the compensation end steel pole is fixed with a limiting device, and the outer end of the limiting device abuts against the transmission device.

[0011] Further, the transmission device comprises a protective frame, a servo cylinder, a chain wheel and a chain, the bottom of the servo cylinder is fixed with the top of the base, the top of the servo cylinder is connected with the chain wheel through a connecting frame, and the protective frame is fixed on the outer periphery of the chain wheel; one end of the chain is fixed with the second weight frame, and the other end of the chain is fixed with the bottom of the servo cylinder through the chain wheel.

[0012] Further, the transmission device comprises a protective frame, a servo cylinder, a pulley and a steel cable, the bottom of the servo cylinder is fixed with the top of the base, the top of the servo cylinder is connected with the pulley through a connecting frame, and the protective frame is fixed on the outer periphery of the pulley; one end of the steel cable is fixed with the second weight frame, and the other end of the steel cable is fixed with the bottom of the servo cylinder through the pulley.

[0013] Further, the wrist arm comprises a bearing seat, a support and a net frame, one end of the support is rotationally connected with the single rod through the bearing seat and the third insulator, and the other end of the support is fixed with the net frame.

[0014] Further, the net frame comprises a contact wire mounting plate, a bearing cable mounting plate, a connecting rod and a net frame sleeve, the top of the net frame sleeve is fixed with the bearing cable mounting plate through the connecting rod, and the bottom of the net frame sleeve is fixed with the contact wire mounting plate through the connecting rod; adjusting holes are formed in the surface of the connecting rod, and bolts are fixed with the adjusting holes after penetrating through the net frame sleeve.

[0015] Further, the surface of the contact wire mounting plate and the surface of the bearing cable mounting plate are both provided with air holes.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The utility model discloses a wire clamp connected with the bearing cable and the contact wire, which forms an up-down symmetrical structure. The deformation of the bearing cable and the contact wire caused by thermal expansion and cold contraction can be offset, the wire dropper inclination phenomenon is reduced, and the problem of the contact network not being in place is solved.

[0018] 2. The utility model discloses a single rod which is evenly distributed on a straight line according to the working area length, and the wrist arm movement speed is uniform and consistent, the interchangeability of the wrist arm is increased, the tension of the bearing cable is reduced, and the deformation of the wrist arm caused by excessive stress is prevented.

[0019] 3. The utility model discloses a wrist arm net rack surface is seted up with the air hole, the air hole has three kinds of forms of circular, square, triangle, also can use three kinds of forms combination. This kind of net rack has higher strength, can reduce the influence of wind force, and reduces the weight.

[0020] 4. The utility model discloses a net rack uses connecting rod and net rack sleeve cooperation, can rotate flexibly, can also telescopic regulation height between the contact wire mounting plate and the bearing cable mounting plate.

[0021] 5. The utility model discloses a power device, through the variable ratio structure, reduces the stroke of servo cylinder, reduces the length-diameter ratio of the extension shaft, reduces the stroke of the power end and the compensation end steel wire rope, and then shortens the height of the steel pole. DRAWINGS

[0022] Figure 1 It is the structure schematic drawing of the utility model;

[0023] Figure 2 It is the structure schematic drawing of the contact suspension;

[0024] Figure 3 It is the structure schematic drawing of the portal frame;

[0025] Figure 4 It is Figure 3 The structure schematic drawing of the area A;

[0026] Figure 5 It is the structure schematic drawing of the compensation end steel pole;

[0027] Figure 6 It is the structure schematic drawing of the power end steel pole;

[0028] Figure 7 It is the first structure schematic drawing of the transmission device;

[0029] Figure 8 It is the second structure schematic drawing of the transmission device;

[0030] Figure 9 It is the structure schematic drawing of the wrist arm;

[0031] Figure 10 This is a schematic diagram of the space frame structure;

[0032] Figure 11 This is a structural diagram of a square air vent in a space frame;

[0033] Figure 12 This is a schematic diagram of the triangular air vents in the space frame.

[0034] The markings in the attached diagram are as follows:

[0035] 1. Contact suspension; 11. Compensating rope; 12. Wire clamp; 13. Contact wire; 14. Dropper; 15. Catenary wire; 16. Compensating wheel; 17. First insulator; 2. Gantry frame; 21. I-beam; 22. Second insulator; 23. Busbar; 24. Post; 25. Crossbeam; 26. Tripod; 3. Compensating end steel rod; 31. First weight frame; 32. First steering wheel; 33. First wire rope; 4. Power end steel rod; 41. Base; 42. Second steering wheel; 43. Limiting Positioning device; 44. Second weight frame; 45. Transmission device; 451. Protective frame; 452. Servo cylinder; 453. Sprocket; 454. Chain; 455. Pulley; 456. Steel cable; 46. Second wire rope; 5. Single rod; 6. Cantilever arm; 61. Bearing seat; 62. Third insulator; 63. Bracket; 64. Grid frame; 641. Contact wire mounting plate; 642. Catenary cable mounting plate; 643. Connecting rod; 644. Grid frame sleeve; 645. Adjustment hole; 646. Air hole. Detailed Implementation

[0036] like Figures 1-12 As shown, the automatically compensated mobile contact network of this embodiment is arranged along the track direction as follows: a compensation end steel rod 3, multiple single rods 5, multiple gantry frames 2, and a power end steel rod 4. The single rods 5 are rotatably connected to the cantilever arm 6. The contact suspension 1 is set above the track. One end of the contact suspension 1 is connected to the compensation end steel rod 3, and the other end of the contact suspension 1 is connected to the power end steel rod 4. The contact suspension 1 includes a compensation rope 11, a clamp 12, a contact line 13, a catenary cable 15, and a compensation wheel 16. The contact line 13 and the catenary cable 15 are arranged horizontally parallel. The contact line 13 and the catenary cable 15 on the same side are connected to the same compensation rope 11 through the clamp 12. A compensation wheel 16 is set in the middle of the compensation rope 11. The compensation wheel 16 on one side is connected to the compensation end steel rod 3, and the compensation wheel 16 on the other side is connected to the power end steel rod 4. A dropper 14 is fixed between the contact line 13 and the catenary cable 15.

[0037] Single rod 5 is in a straight line, wrist arm 6 can be divided into working state and non-working state, single rod 5 is in a straight line, wrist arm 6 initial non-working state is installed on the side of single rod 5, and provides an initial angle for wrist arm 6 when the load cable 15 is pulled;A closed loop is formed by connecting the compensation rope 11, the wire clamp 12, the contact wire 13, the load cable 15, the compensation wheel 16 and the like, and is connected with the compensation end steel rod 3 or the power end steel rod 4, when the load cable 15 and the contact wire 13 are elongated or shortened under the action of thermal expansion and cold shrinkage, the deformation amount can be offset by each other, through this way, a part of compensation can be reduced or no compensation is carried out. This structure can also reduce the deformation amount of the hanging line 14. The load cable 15 and the contact wire 13 are connected by the wire clamp 12, so that the load cable 15 and the contact wire 13 form an upper and lower symmetrical structure, the deformation of the load cable 15 and the contact wire 13 caused by thermal expansion and cold shrinkage can be offset by each other, the inclination of the hanging line 14 is reduced, and the problem of the contact net not being in place is solved.

[0038] Further, the portal frame 2 comprises upright columns 24 and a cross beam 25, the top of the two upright columns 24 is fixed with the bottom of the cross beam 25, the bottom center of the cross beam 25 is fixed with the I-beam 21, the bottom of the I-beam 21 is fixed with the top of the second insulator 22, and the triangular frame 26 is fixed between the upright column 24 and the cross beam 25; the bottom of the second insulator 22 is fixed with the top of the busbar 23; the busbar 23 is fixed with the contact wire 13.

[0039] The I-beam 21 can be selected in different heights, so as to adjust the height of the busbar 23 and reduce the error.

[0040] Further, the first counterweight frame 31 is arranged on the outer side wall of the compensation end steel rod 3, the top of the first counterweight frame 31 is connected with the contact suspension 1 in sequence through the first steel wire rope 33 and the first deflection wheel 32, and the first deflection wheel 32 is connected with the compensation end steel rod 3 through the mounting bracket.

[0041] Further, the bottom of the power end steel rod 4 is fixed with the base 41, the top of the base 41 is connected with the second counterweight frame 44 through the transmission device 45, the top of the second counterweight frame 44 is connected with the contact suspension 1 in sequence through the second steel wire rope 46 and the second deflection wheel 42, and the second deflection wheel 42 is connected with the power end steel rod 4 through the mounting bracket.

[0042] When the power end steel rod 4 works, the transmission device 45 is used to realize the reversing, the second counterweight frame 44 provided with the counterweight moves to make the second counterweight frame 44 frame rise or fall.

[0043] Further, the side wall of the power end steel rod 4 is fixed with the limiting device 43, and the outer end of the limiting device 43 abuts against the transmission device 45.

[0044] Further, the transmission device 45 comprises a protective frame 451, a servo cylinder 452, a chain wheel 453 and a chain 454. The bottom of the servo cylinder 452 is fixed to the top of the base 41. The top of the servo cylinder 452 is connected to the chain wheel 453 through a connecting frame. The protective frame 451 is fixed to the outer periphery of the chain wheel 453. One end of the chain 454 is fixed to the second sinking weight frame 44. The other end of the chain 454 is fixed to the bottom of the servo cylinder 452 through the chain wheel 453.

[0045] Further, the transmission device 45 comprises a protective frame 451, a servo cylinder 452, a chain wheel 453 and a chain 454. The bottom of the servo cylinder 452 is fixed to the top of the base 41. The top of the servo cylinder 452 is connected to the chain wheel 453 through a connecting frame. The protective frame 451 is fixed to the outer periphery of the chain wheel 453. One end of the chain 454 is fixed to the second sinking weight frame 44. The other end of the chain 454 is fixed to the bottom of the servo cylinder 452 through the chain wheel 453.

[0046] Optionally, the servo cylinder 452 as the driving device can be replaced by a motor, a winch mechanism, an electric rotary table or other driving devices with the same effect. The driving device can also be installed on the cross beam 25 of the portal frame 2 or the top of the power end steel pole 4. The general power end adopts a direct jacking sinking weight frame form with a variable ratio of 1:1. In the present scheme, one end of the chain 454 (or the steel cable 456) is fixed to the second sinking weight frame 44. The other end of the chain 454 (or the steel cable 456) is fixed to the bottom of the servo cylinder 452 through the chain wheel 453 (or the pulley 455). The stroke ratio of the servo cylinder 452 to the second sinking weight frame 44 is in a proportional variable ratio of 1:2, so that the ascending or descending speed of the second sinking weight frame 44 is doubled.

[0047] Further, the wrist arm 6 comprises a bearing seat 61, a support 63 and a net rack 64. One end of the support 63 is rotatably connected to the single pole 5 through the bearing seat 61 and the third insulator 62. The other end of the support 63 is fixed to the net rack 64.

[0048] Each single pole 5 is provided with a rotatable wrist arm 6. The wrist arm 6 is arranged on the side of the single pole 5. The single pole 5 is arranged in a straight line along the track direction. A certain space is left to increase the safety distance of the contact suspension 1. At the same time, the wrist arm 6 has an initial angle to reduce the tension of the load-bearing cable 15 and prevent the wrist arm 6 from being deformed due to excessive force.

[0049] Further, the net rack 64 comprises a contact line mounting plate 641, a load-bearing cable mounting plate 642, a connecting rod 643 and a net rack sleeve 644. The top of the net rack sleeve 644 is fixed to the load-bearing cable mounting plate 642 through the connecting rod 643. The bottom of the net rack sleeve 644 is fixed to the contact line mounting plate 641 through the connecting rod 643. The surface of the connecting rod 643 is provided with an adjusting hole 645. A bolt penetrates through the net rack sleeve 644 and is fixed to the adjusting hole 645.

[0050] The net rack 64 uses the connecting rod 643 and the net rack sleeve 644 to cooperate, that is, the net rack sleeve 644 can be flexibly rotated, and the height between the contact line mounting plate 641 and the bearing cable mounting plate 642 can be adjusted, so that the bearing seat 61 of the wrist arm 6 is not moved, and the guide height of the net rack 64 can be finely adjusted.

[0051] Further, the contact line mounting plate 641 and the bearing cable mounting plate 642 are provided with air holes 646.

[0052] The air holes 646 have three forms of circle, square and triangle, and the three forms can be combined for use, so that the net rack 64 has higher strength, the influence of wind force is reduced, and the weight is reduced.

[0053] The use method of the utility model is as follows:

[0054] When the bearing cable 15 and the contact line 13 are deformed due to temperature, the deformation amount of the bearing cable 15 and the contact line 13 can be partially or totally offset, so that the influence of the position error caused by the deformation of the contact line 13 is reduced, if the deformation amount is still large, the contact line 13 is not in the working position or the non-working position, the transmission device 45 can be adjusted to compensate, or the inclination angle of the wrist arm 6 is adjusted.

[0055] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An automatically compensated mobile contact network, comprising, along the track direction, a compensation end steel rod (3), multiple single rods (5), multiple gantry frames (2), and a power end steel rod (4), wherein the single rods (5) are rotatably connected to a cantilever arm (6); a contact suspension (1) is disposed above the track, one end of the contact suspension (1) is connected to the compensation end steel rod (3), and the other end of the contact suspension (1) is connected to the power end steel rod (4), characterized in that, The contact suspension (1) includes a compensating rope (11), a clamp (12), a contact wire (13), a catenary (15), and a compensating wheel (16). The contact wire (13) and the catenary (15) are arranged horizontally parallel. The contact wire (13) and the catenary (15) on the same side are connected to the same compensating rope (11) through the clamp (12). A compensating wheel (16) is provided in the middle of the compensating rope (11). One side of the compensating wheel (16) is connected to the compensating end steel rod (3), and the other side of the compensating wheel (16) is connected to the power end steel rod (4). A suspension string (14) is fixed between the contact wire (13) and the catenary (15).

2. The automatically compensated mobile contact network according to claim 1, characterized in that, The gantry (2) includes columns (24) and beams (25). The tops of the two columns (24) are fixed to the bottom of the beams (25), and a tripod (26) is fixed between the columns (24) and the beams (25). An I-beam (21) is fixed at the center of the bottom of the beams (25). The bottom of the I-beam (21) is fixed to the top of the second insulator (22), and the bottom of the second insulator (22) is fixed to the top of the busbar (23). The busbar (23) is fixed to the contact wire (13).

3. The automatically compensated mobile contact network according to claim 1, characterized in that, The outer wall of the compensating end steel rod (3) is provided with a first weight frame (31). The top of the first weight frame (31) is connected to the contact suspension (1) through the first wire rope (33) and the first steering wheel (32) in sequence. The first steering wheel (32) is connected to the compensating end steel rod (3) through the mounting bracket.

4. The automatically compensated mobile contact network according to claim 1, characterized in that, A base (41) is fixed to the bottom side wall of the power end steel rod (4). The top of the base (41) is connected to the second weight frame (44) through the transmission device (45). The top of the second weight frame (44) is connected to the contact suspension (1) through the second wire rope (46) and the second steering wheel (42) in sequence. The second steering wheel (42) is connected to the power end steel rod (4) through the mounting bracket.

5. The automatically compensated mobile contact network according to claim 3, characterized in that, A limiting device (43) is fixed to the side wall of the compensation end steel rod (3), and the outer end of the limiting device (43) abuts against the transmission device (45).

6. The automatically compensated mobile contact network according to claim 3, characterized in that, The transmission device (45) includes a protective frame (451), a servo cylinder (452), a sprocket (453), and a chain (454). The bottom of the servo cylinder (452) is fixed to the top of the base (41), and the top of the servo cylinder (452) is connected to the sprocket (453) through a connecting frame. The protective frame (451) is fixed to the outer periphery of the sprocket (453). One end of the chain (454) is fixed to the second weight frame (44), and the other end of the chain (454) is fixed to the bottom of the servo cylinder (452) after passing through the sprocket (453).

7. The automatically compensated mobile contact network according to claim 3, characterized in that, The transmission device (45) includes a protective frame (451), a servo cylinder (452), a pulley (455), and a steel cable (456). The bottom of the servo cylinder (452) is fixed to the top of the base (41), and the top of the servo cylinder (452) is connected to the pulley (455) through a connecting frame. The protective frame (451) is fixed to the outer periphery of the pulley (455). One end of the steel cable (456) is fixed to the second weight frame (44), and the other end of the steel cable (456) is fixed to the bottom of the servo cylinder (452) after passing through the pulley (455).

8. The automatically compensated mobile contact network according to claim 1, characterized in that, The cantilever arm (6) includes a bearing seat (61), a bracket (63) and a grid frame (64). One end of the bracket (63) is rotatably connected to the single rod (5) through the bearing seat (61) and the third insulator (62), and the other end of the bracket (63) is fixed to the grid frame (64).

9. The automatically compensated mobile contact network according to claim 8, characterized in that, The space frame (64) includes a contact wire mounting plate (641), a catenary mounting plate (642), a connecting rod (643), and a space frame sleeve (644). The top of the space frame sleeve (644) is fixed to the catenary mounting plate (642) via the connecting rod (643), and the bottom of the space frame sleeve (644) is fixed to the contact wire mounting plate (641) via the connecting rod (643). An adjustment hole (645) is provided on the surface of the connecting rod (643), and a bolt passes through the space frame sleeve (644) and is fixed to the adjustment hole (645).

10. The automatically compensated mobile contact network according to claim 8, characterized in that, Both the contact wire mounting plate (641) and the catenary mounting plate (642) have air holes (646) on their surfaces.

Images