Hydraulic drive device for catenary suspension cable

Abstract

The application provides a kind of card line type contact network elastic sling hydraulic drive device, belongs to the technical field of contact network installation, including support beam, plummet, support frame and plummet adjustment assembly.The card line type contact network elastic sling hydraulic drive device described above can automatically adjust the load-bearing cable and contact wire under non-extreme windy weather conditions, keeping the load-bearing cable and contact wire straight, reducing the cost of using hydraulic drive structure, and can adjust the load-bearing cable and contact wire with the help of hydraulic cylinder under extreme windy weather conditions, keeping the load-bearing cable and contact wire straight, effectively ensuring the stability of the load-bearing cable and contact wire work.The control assembly can also timely detect the plummet falling and send warning signals to the staff, shorten the reaction time and reduce the operation risk.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of catenary installation, and specifically discloses a hydraulic driving device for a clamping line type catenary elastic sling. BACKGROUND

[0002] In the application system of electrified railways, the catenary system is the key to power transmission, and its stability and safety are crucial. The clamping line type catenary elastic sling is an important component in this field, with its unique design and excellent performance, it contributes indispensable power to the safety and efficiency of railway transportation.

[0003] The clamping line type catenary elastic sling is an important component in the catenary system for suspending the contact line and maintaining its elasticity. It is made of high-strength materials and processed by fine technology to ensure stable performance in harsh environments. This sling not only has excellent load capacity and can easily cope with the huge tension generated by high-speed train running, but also its elastic design makes the contact line maintain a stable contact state under temperature changes or train running vibrations, effectively reducing sparks and wear and tear, and prolonging the service life of the catenary.

[0004] According to the General Electrification Diagram (2009) 1005 "Contact Suspension Lower Anchor Installation Diagram", a plummet needs to be added at the free end of the load-bearing cable and the contact line. The self-weight of the plummet is used to meet the straightening needs of the load-bearing cable and the contact line during thermal expansion and contraction. Currently, the following technical problems need to be solved:

[0005] 1. In extremely windy weather, the suspended load-bearing cable, contact line and plummet will sway under the action of wind, causing the load-bearing cable and contact line to fail to effectively enter the straightening state.

[0006] 2. When the plummet falls, the staff cannot timely understand the situation. SUMMARY

[0007] The present application provides a hydraulic driving device for a clamping line type catenary elastic sling, which at least solves the above technical problem.

[0008] The card line type contact net elastic sling hydraulic drive device, including support beam, plummet, support frame and plummet adjustment assembly; the support frame is fixed on the support beam; the plummet is located in the support frame, and the top end is connected with the compensation rope of the contact line and the load bearing cable; the plummet adjustment assembly includes hydraulic cylinder, U-shaped frame II, toothed plate, transmission plate II, transmission shaft, brake, winding and unwinding frame, steel wire rope, one-way bearing, gear, spring type telescopic rod II and fixed frame V; the U-shaped frame II, the transmission plate II and the fixed frame V are arranged from top to bottom in sequence, the U-shaped frame II and the transmission plate II are slidably connected with the support beam, and the fixed frame V is fixedly connected with the support beam; the U-shaped frame II is driven by the hydraulic cylinder to slide up and down along the support beam; the two toothed plates are located on the two sides of the U-shaped frame II, and the top ends are connected with the U-shaped frame II; the transmission shaft is rotatably installed on the two sides of the transmission plate II; the brake is connected with the transmission plate II and the transmission shaft, and is used for braking the transmission shaft; the winding and unwinding frame is fixedly installed on the transmission shaft; the steel wire rope is wound on the winding and unwinding frame, and the top end of the steel wire rope is led out from the winding and unwinding frame and fixedly connected with the plummet; the inner ring of the one-way bearing is fixedly installed on the transmission shaft; the gear is fixedly sleeved on the outer ring of the one-way bearing and is engaged with the toothed plate; the two ends of the spring type telescopic rod II are fixedly connected with the transmission plate II and the fixed frame V respectively.

[0009] In the card line type contact net elastic sling hydraulic drive device, the plummet adjustment assembly further includes U-shaped frame I, spring type telescopic rod I, support rod, connecting rod and transmission plate I; the U-shaped frame I is located above the U-shaped frame II and is slidably connected with the support beam; the hydraulic cylinder is located above the U-shaped frame I, and the two ends are fixedly connected with the support beam and the U-shaped frame I respectively; the two ends of the spring type telescopic rod I are fixedly connected with the U-shaped frame I and the U-shaped frame II respectively; the top end of the support rod is fixedly connected with the U-shaped frame I; the bottom end of the support rod is located above the U-shaped frame II in the uncompressed state of the spring type telescopic rod I, and abuts against the U-shaped frame II in the preset state of the spring type telescopic rod I; the connecting rod passes through the U-shaped frame II, the top end is fixedly connected with the U-shaped frame I, and the bottom end is fixedly connected with the transmission plate I; the line type contact net elastic sling hydraulic drive device further includes a control assembly; the control assembly includes a pressure sensor, a wireless communication module and a control module; the pressure sensor is fixedly installed on the transmission plate II, and the transmission plate I abuts against the pressure sensor in the preset state of the spring type telescopic rod I; the wireless communication module is used for transmitting the detection value of the pressure sensor to the control module; the control module is used for issuing an alarm signal and for controlling the brake.

[0010] In the card line type contact net elastic sling hydraulic drive device, the cylinder body of the hydraulic cylinder is connected with the support beam through the fixed frame IV, and the rod end is fixedly connected with the U-shaped frame I; the spring type telescopic rod I is symmetrically arranged on the two sides of the support beam, the cylinder body is fixedly connected with the U-shaped frame I, and the rod end is fixedly connected with the U-shaped frame II; the rod end of the spring type telescopic rod II is fixedly connected with the transmission plate II, and the cylinder body is fixedly connected with the fixed frame V.

[0011] The bottom of the support frame is provided with a plurality of liquid discharge holes.

[0012] The support beam is provided with a sliding groove, the transmission plate II is fixedly provided with a sliding plate in sliding cooperation with the sliding groove, the plummet is fixedly provided with a transmission plate III, and the transmission plate III is fixedly connected with the top end of the steel wire rope.

[0013] The control assembly further comprises a fixed frame VI and a spring type telescopic rod III, the fixed frame VI is fixedly installed on the transmission plate II, and the spring type telescopic rod III is fixedly connected with the fixed frame VI and the pressure sensor at two ends.

[0014] The inner wall of the support frame is fixedly provided with a plurality of limiting support plates, and the pressure sensor is flush with the limiting support plates when the spring type telescopic rod III is compressed to a preset state.

[0015] The plummet adjusting assembly further comprises a guide frame, a sliding seat I, a sliding seat II and a sliding seat III, the guide frame is fixedly installed on both sides of the support beam, the sliding seat I, the sliding seat II and the sliding seat III are arranged in sequence from top to bottom and are in sliding insertion with the guide frame, the two sliding seats I are fixedly connected with the two sides of the U-shaped frame I, the two sliding seats II are fixedly connected with the two sides of the U-shaped frame II, and the sliding seat III is rotatably connected with a connecting side plate at an end portion outside the guide frame, and the connecting side plate is rotatably sleeved on the transmission shaft.

[0016] The hydraulic drive device for the elastic suspension of the catenary contact line further comprises a guide assembly, the guide assembly comprises a fixed frame II, a fixed frame III and a supporting roller, the fixed frame II is fixedly sleeved on the support beam, the fixed frame II is fixedly provided with the fixed frame III, the fixed frame III is provided with an open groove, the supporting roller is rotatably installed in the open groove, and the load bearing cable and the compensation rope of the contact line are connected with the plummet by passing through the supporting roller.

[0017] The guide assembly further comprises an arc-shaped fixed plate, a mounting frame I and a rotating drag reduction sleeve, the arc-shaped fixed plate is fixedly installed on the top of both sides of the fixed frame III, a plurality of mounting frames I are fixedly installed between the two arc-shaped fixed plates, the plurality of mounting frames I are distributed on the same arc-shaped track with the supporting roller as the center, and the rotating drag reduction sleeve is rotatably installed outside each mounting frame I.

[0018] Compared with the prior art, the hydraulic drive device for the elastic suspension of the catenary contact line has the following beneficial effects.

[0019] 1. The hydraulic drive device of the catenary contact net elastic sling can automatically adjust the load bearing cable and the contact wire under non-extreme windy weather, so that the load bearing cable and the contact wire can be kept in a straight state, and the cost investment of the hydraulic drive structure is reduced, and the load bearing cable and the contact wire can be adjusted by the hydraulic cylinder under extreme windy weather, so that the load bearing cable and the contact wire can be kept in a straight state, and the stability of the load bearing cable and the contact wire is effectively ensured.

[0020] 2. The control assembly can also timely find that the plummet falls, and send an alarm signal to the staff, so as to shorten the reaction time and reduce the operation risk. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is an installation schematic diagram of the hydraulic drive device of the catenary contact net elastic sling (the plummet connected with the load bearing cable is not installed with a support frame, a guide assembly and a plummet adjustment assembly, and the plummet connected with the contact wire is installed with a support frame, a guide assembly and a plummet adjustment assembly);

[0023] Figure 2 It is an enlarged view of the plummet connected with the contact wire;

[0024] Figure 3 It is a structural schematic diagram of the guide assembly;

[0025] Figure 4 It is a structural schematic diagram in the support frame;

[0026] Figure 5 It is Figure 4 an enlarged view of part A;

[0027] Figure 6 It is a structural schematic diagram of the plummet adjustment assembly;

[0028] Figure 7 It is Figure 6 an enlarged view of part B;

[0029] Figure 8 It is an assembly drawing of the U-shaped frame I, the U-shaped frame II, the transmission shaft and the guide frame;

[0030] Figure 9 It is an assembly drawing of the guide frame, the sliding seat I, the sliding seat II and the sliding seat III;

[0031] Figure 10 is an assembly view of the U-shaped frame I and the U-shaped frame II;

[0032] Figure 11 is an assembly view of the transmission shaft, the brake, the winding and unwinding frame and the steel wire rope;

[0033] Figure 12 is a matching view of the toothed plate and the gear.

[0034] Reference numerals in the drawing: 1, support beam; 2, bearing cable; 3, contact line; 4, plummet; 5, fixed frame II; 6, fixed frame III; 7, support roller; 8, arc-shaped fixed plate; 9, mounting frame I; 10, rotating drag-reducing sleeve; 11, support frame; 12, liquid discharge hole; 15, hydraulic cylinder; 16, fixed frame IV; 17, U-shaped frame I; 18, spring type telescopic rod I; 19, U-shaped frame II; 20, support rod; 21, connecting rod; 22, transmission plate I; 23, toothed plate; 24, transmission plate II; 25, sliding plate; 26, sliding groove; 27, transmission shaft; 28, brake; 29, winding and unwinding frame; 30, steel wire rope; 31, transmission plate III; 32, one-way bearing; 33, gear; 34, spring type telescopic rod II; 35, fixed frame V; 36, fixed frame VI; 37, spring type telescopic rod III; 38, pressure sensor; 39, limiting support plate; 40, guide frame; 41, sliding seat I; 42, sliding seat II; 43, sliding seat III; 44, connecting side plate. DETAILED DESCRIPTION

[0035] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] The embodiment provides a hydraulic drive device for a catenary elastic sling, which comprises a support beam 1, a plummet 4, a support frame 11 and a plummet adjusting assembly; the support frame 11 is fixed on the support beam 1; the plummet 4 is located in the support frame 11 and connected with a compensation rope of a contact wire 3 and a load-bearing cable 2 (the contact wire 3 and the load-bearing cable 2 can be respectively provided with a contact network compensation device or share one contact network compensation device, the compensation rope is a structure for connecting a pulley block and the plummet 4 in the contact network compensation device, and the contact network compensation device is not shown in the figure); the plummet adjusting assembly comprises a hydraulic cylinder 15, a U-shaped frame II 19, a toothed plate 23, a transmission plate II 24, a transmission shaft 27, a brake 28, a winding and unwinding frame 29, a steel wire rope 30, a one-way bearing 32, a gear 33, a spring type telescopic rod II 34 and a fixed frame V 35; the U-shaped frame II 19, the transmission plate II 24 and the fixed frame V 35 are arranged in sequence from top to bottom, the U-shaped frame II 19 and the transmission plate II 24 are slidably connected with the support beam 1, and the fixed frame V 35 is fixedly connected with the support beam 1; the U-shaped frame II 19 is driven by the hydraulic cylinder 15 to slide up and down along the support beam 1; the two toothed plates 23 are located on the two sides of the U-shaped frame II 19 and connected with the U-shaped frame II 19 at the top; the transmission shaft 27 is rotatably installed on the two sides of the transmission plate II 24; the brake 28 is connected with the transmission plate II 24 and the transmission shaft 27 and used for braking the transmission shaft 27; the winding and unwinding frame 29 is fixedly installed on the transmission shaft 27; the steel wire rope 30 is wound on the winding and unwinding frame 29, and the top of the steel wire rope 30 is led out from the winding and unwinding frame 29 and fixedly connected with the plummet 4; the inner ring of the one-way bearing 32 is fixedly installed on the transmission shaft 27; the gear 33 is fixedly sleeved on the outer ring of the one-way bearing 32 and engaged with the toothed plate 23; and the two ends of the spring type telescopic rod II 34 are fixedly connected with the transmission plate II 24 and the fixed frame V 35 respectively.

[0037] In the case of non-extreme gale weather, the hydraulic cylinder 15 is in a non-working state, the U-shaped frame II 19 is located at an initial position, the transmission plate II 24 is located at an initial position under the support of the spring type telescopic rod II 34, and the plummet 4 is automatically adjusted when the load-bearing cable 2 and the contact wire 3 are heated and contracted. Figure 12 When the load-bearing cable 2 and the contact wire 3 are contracted by cold, the plummet 4 is pulled up by the traction force of the load-bearing cable 2 and the contact wire 3, the plummet 4 drives the winding and unwinding frame 29 and the transmission shaft 27 to rotate clockwise (as shown in the figure) through the steel wire rope 30, the winding and unwinding frame 29 unwinds the steel wire rope 30, the rotation direction of the transmission shaft 27 is the rotation direction between the inner and outer rings of the one-way bearing 32, the gear 33 does not rotate with the transmission shaft 27, the toothed plate 23 is not affected, and the position of the U-shaped frame II 19 remains unchanged; when the load-bearing cable 2 and the contact wire 3 are heated and expanded, the plummet 4 moves down, and the bending of the steel wire rope 30 does not affect the movement of the plummet 4.

[0038] In the case of extreme gale weather, the hydraulic cylinder 15 drives the U-shaped frame II 19 to move down, the two toothed plates 23 fixedly connected with the U-shaped frame II 19 move down, and the gear 33 engaged with the toothed plate 23 rotates counterclockwise (as shown in the figure). Figure 12At this time, the force rotating direction of gear 33 is the locking direction between the inner and outer rings of one-way bearing 32, so gear 33 drives transmission shaft 27 to rotate counterclockwise, drive reel 29 to retract steel wire rope 30, and steel wire rope 30 is retracted and straightened. The force cable 2 and the contact wire 3 exert upward tension on the plummet 4, overcome the force exerted by the toothed plate 23 on the gear 33, so that the transmission shaft 27 cannot rotate, the brake 28 starts to limit the transmission shaft 27, the toothed plate 23 and the gear 33 are locked, the hydraulic cylinder 15 continues to push the U-shaped frame II 19 to move downward, the toothed plate 23, the gear 33, the drive reel 29, the transmission shaft 27 and the transmission plate II 24 move downward, the drive reel 29 drives the plummet 4 to move downward through the steel wire rope 30, and the force cable 2 and the contact wire 3 are straightened. It can effectively ensure the stability of the force cable 2 and the contact wire 3 under extreme weather conditions.

[0039] In summary, the above-mentioned line clamping type catenary elastic sling hydraulic drive device can automatically adjust the force cable 2 and the contact wire 3 under non-extreme weather conditions, so that the force cable 2 and the contact wire 3 remain straight, reducing the cost of using the hydraulic drive structure. In the case of extreme weather, the hydraulic cylinder 15 can be used to adjust the force cable 2 and the contact wire 3, so that the force cable 2 and the contact wire 3 remain straight, effectively ensuring the stability of the force cable 2 and the contact wire 3.

[0040] The plummet adjusting assembly further comprises a U-shaped frame I 17, a spring type telescopic rod I 18, a support rod 20, a connecting rod 21 and a transmission plate I 22; the U-shaped frame I 17 is located above the U-shaped frame II 19 and is in sliding connection with the support beam 1; the hydraulic cylinder 15 is located above the U-shaped frame I 17 and is fixedly connected with the support beam 1 and the U-shaped frame I 17 at both ends; the spring type telescopic rod I 18 is fixedly connected with the U-shaped frame I 17 and the U-shaped frame II 19 at both ends; the spring type telescopic rod I 18 needs to reach a preset force value to be contracted; before the resistance force reached by the U-shaped frame II 19 in the movement process reaches the preset value, the U-shaped frame II 19 moves synchronously with the U-shaped frame I 17 under the action of the spring type telescopic rod I 18; the top end of the support rod 20 is fixedly connected with the U-shaped frame I 17; the bottom end of the support rod 20 is located above the U-shaped frame II 19 in the uncompressed state of the spring type telescopic rod I 18 and is abutted against the U-shaped frame II 19 in the preset state of the spring type telescopic rod I 18; the connecting rod 21 passes through the U-shaped frame II 19, the top end is fixedly connected with the U-shaped frame I 17, and the bottom end is fixedly connected with the transmission plate I 22; the line type contact net elastic sling hydraulic driving device further comprises a control assembly; the control assembly comprises a pressure sensor 38, a wireless communication module and a control module; the pressure sensor 38 is fixedly installed on the transmission plate II 24, and the transmission plate I 22 is abutted against the pressure sensor 38 in the preset state of the spring type telescopic rod I 18; the wireless communication module is used for transmitting the detection value of the pressure sensor 38 to the control module; and the control module is used for issuing an alarm signal and for controlling the brake 28.

[0041] In the case of non-extreme gale weather, the hydraulic cylinder 15 is in a non-working state, the U-shaped frame I 17 is located at the initial position, the U-shaped frame II 19 is located at the initial position under the support of the spring type telescopic rod I 18, the transmission plate II 24 is located at the initial position under the support of the spring type telescopic rod II 34, and the plummet 4 is automatically adjusted when the load-bearing cable 2 and the contact wire 3 are heated and contracted, and the adjustment process is as described above.

[0042] In the case of extreme gale weather, the hydraulic cylinder 15 pushes the U-shaped frame I 17 to move downward, the U-shaped frame II 19 and the toothed plate 23 move downward, the gear wheel 33 meshing with the toothed plate 23 rotates counterclockwise, at this time, the rotating direction of the gear wheel 33 under force is the locking direction between the inner and outer rings of the one-way bearing 32, so the gear wheel 33 drives the transmission shaft 27 to rotate counterclockwise (as shown in FIG. 6B). Figure 12When the plummet 4 falls, the plummet 4 contacts the pressure sensor 38, the pressure sensor 38 detects the change of the pressure value, the wireless communication module transmits the detection value to the control module, and the control module sends an alarm signal to the worker, so that the worker is informed of the falling of the plummet 4 in time, and the emergency repair work of the worker is facilitated.

[0043] When the plummet 4 falls, the plummet 4 contacts the pressure sensor 38, the pressure sensor 38 detects the change of the pressure value, the wireless communication module transmits the detection value to the control module, and the control module sends an alarm signal to the worker, so that the worker is informed of the falling of the plummet 4 in time, and the emergency repair work of the worker is facilitated.

[0044] In summary, the U-shaped frame 117, the spring telescopic rod 118, the support rod 20, the connecting rod 21, the transmission plate 122 and the control assembly are arranged to realize real-time monitoring of the rotation state of the transmission shaft 27, and the brake 28 is rapidly actuated to brake and limit the transmission shaft 27 when the transmission shaft 27 stops rotating, so that the transmission shaft 27 is prevented from rotating again under stress and causing the device to fail. At the same time, the control assembly can also timely detect the falling of the plummet 4 and send an alarm signal to the worker, thereby shortening the reaction time and reducing the operation risk.

[0045] In the above-mentioned hydraulic drive device for the catenary contact net elastic sling, the cylinder body of the hydraulic cylinder 15 is connected with the support beam 1 through the fixed frame IV 16, and the rod end is fixedly connected with the U-shaped frame 117; the spring telescopic rod 118 is symmetrically arranged on both sides of the support beam 1, the cylinder body is fixedly connected with the U-shaped frame 117, and the rod end is fixedly connected with the U-shaped frame 119, so as to ensure that the U-shaped frame 117 and the U-shaped frame 119 are balanced on both sides; the rod end of the spring telescopic rod II 34 is fixedly connected with the transmission plate II 24, and the cylinder body is fixedly connected with the fixed frame V 35.

[0046] In the above-mentioned hydraulic drive device for the catenary contact net elastic sling, a plurality of drainage holes 12 are formed in the bottom of the support frame 11, so as to drain the liquid such as rainwater in the support frame 11.

[0047] The sliding groove 26 is arranged on the support beam 1; the sliding plate 25 is fixedly installed on the transmission plate II 24 and is in sliding cooperation with the sliding groove 26, so that the transmission plate II 24 can only move up and down; the transmission plate III 31 is fixedly installed on the plummet 4, and the transmission plate III 31 is fixedly connected with the top end of the steel wire rope 30, so that the steel wire rope 30 is connected with the plummet 4.

[0048] The control assembly further comprises the fixed frame VI 36 and the spring type telescopic rod III 37; the fixed frame VI 36 is fixedly installed on the transmission plate II 24; the spring type telescopic rod III 37 is fixedly connected with the fixed frame VI 36 and the pressure sensor 38 at two ends, and buffers the pressure sensor 38.

[0049] The support frame 11 is fixedly installed with a plurality of limiting support plates 39 on the inner wall; the pressure sensor 38 is flush with the limiting support plates 39 when the spring type telescopic rod III 37 is compressed to a preset state. When the pressure sensor 38 is pressed by the plummet 4, the spring type telescopic rod III 37 is contracted, and the plummet 4 is moved downward to abut against the plurality of limiting support plates 39, the plurality of limiting support plates 39 support the plummet 4, and the safety of the pressure sensor 38 is ensured.

[0050] The plummet adjusting assembly further comprises the guide frame 40, the sliding seat I 41, the sliding seat II 42 and the sliding seat III 43; the guide frame 40 is fixedly installed on both sides of the support beam 1; the sliding seat I 41, the sliding seat II 42 and the sliding seat III 43 are arranged in sequence from top to bottom and are in sliding insertion with the guide frame 40; the two sliding seat I 41 are fixedly connected with the two sides of the U-shaped frame I 17; the two sliding seat II 42 are fixedly connected with the two sides of the U-shaped frame II 19; the sliding seat III 43 is rotatably connected with the connecting side plate 44 at the end portion outside the guide frame 40, and the connecting side plate 44 is rotatably sleeved on the transmission shaft 27. The U-shaped frame I 17, the U-shaped frame II 19 and the transmission shaft 27 are supported and limited, and the stability of the up and down movement of the U-shaped frame I 17, the U-shaped frame II 19 and the transmission shaft 27 is ensured.

[0051] The hydraulic drive device for the elastic suspension of the catenary further comprises a guide assembly; the guide assembly comprises the fixed frame II 5, the fixed frame III 6 and the support roller 7; the fixed frame II 5 is fixedly sleeved on the support beam 1; the fixed frame III 6 is fixedly installed on the fixed frame II 5; the fixed frame III 6 is provided with an open groove, and the support roller 7 is rotatably installed in the open groove; the load-bearing cable 2 and the compensation rope of the contact wire 3 are connected with the plummet 4 by passing through the support roller 7, and the support roller 7 supports and changes the direction of the compensation rope. Under the action of the guide assembly, the compensation rope is perpendicular to the horizontal plane, the plummet 4 applies a certain tension to the load-bearing cable 2 and the contact wire 3 in real time, and the portions of the load-bearing cable 2 and the contact wire 3 between the two support beams 1 are straightened.

[0052] The guiding assembly further comprises arc-shaped fixing plates 8, mounting racks I 9 and rotating drag-reducing sleeves 10; the arc-shaped fixing plates 8 are fixedly installed on the top of the fixed rack III 6; a plurality of mounting racks I 9 are fixedly installed between the two arc-shaped fixing plates 8; the plurality of mounting racks I 9 are distributed on the same arc-shaped track with the supporting roller 7 as the center; and the rotating drag-reducing sleeve 10 is rotatably installed outside each mounting rack I 9. The plurality of mounting racks I 9 distributed on the same arc-shaped track guide and limit the compensation rope, avoid the compensation rope from being separated from the supporting roller 7, ensure the compensation rope to move according to the preset track, and reduce the situation that the compensation rope is separated from the movement track.

[0053] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A hydraulic drive device for a catenary suspension system, characterized in that The device comprises a support beam (1), a plummet (4), a support frame (11) and a plummet adjusting assembly; The support frame (11) is fixed on the support beam (1); The plummet (4) is located in the support frame (11) and the top end is connected with the compensation rope of the contact wire (3) and the bearing cable (2); The plummet adjusting assembly comprises a hydraulic cylinder (15), a U-shaped frame II (19), a toothed plate (23), a transmission plate II (24), a transmission shaft (27), a brake (28), a winding and unwinding frame (29), a steel wire rope (30), a one-way bearing (32), a gear (33), a spring type telescopic rod II (34) and a fixed frame V (35); The U-shaped frame II (19), the transmission plate II (24) and the fixed frame V (35) are arranged from top to bottom in sequence, the U-shaped frame II (19) and the transmission plate II (24) are slidably connected with the support beam (1), and the fixed frame V (35) is fixedly connected with the support beam (1); The U-shaped frame II (19) is driven by the hydraulic cylinder (15) to slide up and down along the support beam (1); Two toothed plates (23) are located on both sides of the U-shaped frame II (19) and the top end is connected with the U-shaped frame II (19); The transmission shaft (27) is rotatably installed on both sides of the transmission plate II (24); The brake (28) is connected with the transmission plate II (24) and the transmission shaft (27) and is used for braking the transmission shaft (27); The winding and unwinding frame (29) is fixedly installed on the transmission shaft (27); The steel wire rope (30) is wound on the winding and unwinding frame (29) and the top end of the steel wire rope (30) is led out from the winding and unwinding frame (29) and fixedly connected with the plummet (4); The inner ring of the one-way bearing (32) is fixedly installed on the transmission shaft (27); The gear (33) is fixedly sleeved on the outer ring of the one-way bearing (32) and is engaged with the toothed plate (23); The both ends of the spring type telescopic rod II (34) are fixedly connected with the transmission plate II (24) and the fixed frame V (35) respectively.

2. The catenary suspension system hydraulic drive device according to claim 1, characterized in that, The plummet adjusting assembly further comprises a U-shaped frame I (17), a spring type telescopic rod I (18), a support rod (20), a connecting rod (21) and a transmission plate I (22); The U-shaped frame I (17) is located above the U-shaped frame II (19) and is slidably connected with the support beam (1); The hydraulic cylinder (15) is located above the U-shaped frame I (17) and both ends thereof are fixedly connected with the support beam (1) and the U-shaped frame I (17) respectively; Both ends of the spring type telescopic rod I (18) are fixedly connected with the U-shaped frame I (17) and the U-shaped frame II (19) respectively; The top end of the support rod (20) is fixedly connected with the U-shaped frame I (17); The bottom end of the support rod (20) is located above the U-shaped frame II (19) in the uncompressed state of the spring type telescopic rod I (18) and abuts against the U-shaped frame II (19) in the compressed state of the spring type telescopic rod I (18) to a preset state; The connecting rod (21) passes through the U-shaped frame II (19), the top end thereof is fixedly connected with the U-shaped frame I (17) and the bottom end thereof is fixedly connected with the transmission plate I (22); The device further comprises a control assembly. The control assembly comprises a pressure sensor (38), a wireless communication module and a control module; The pressure sensor (38) is fixedly installed on the transmission plate II (24), and the transmission plate I (22) abuts against the pressure sensor (38) when the spring type telescopic rod I (18) is compressed to a preset state; The wireless communication module is used for transmitting the detection value of the pressure sensor (38) to the control module; The control module is used for issuing an alarm signal and for controlling the brake (28).

3. The hydraulic drive of the catenary suspension elastic cable according to claim 2, characterized in that, The cylinder body of the hydraulic cylinder (15) is connected with the support beam (1) through the fixed frame IV (16), and the rod end is fixedly connected with the U-shaped frame I (17); The spring type telescopic rod I (18) is symmetrically arranged on both sides of the support beam (1), the cylinder body is fixedly connected with the U-shaped frame I (17), and the rod end is fixedly connected with the U-shaped frame II (19); The rod end of the spring type telescopic rod II (34) is fixedly connected with the transmission plate II (24), and the cylinder body is fixedly connected with the fixed frame V (35).

4. The catenary suspension system hydraulic drive device according to claim 1, characterized in that, A plurality of liquid discharge holes (12) are formed in the bottom of the support frame (11).

5. The catenary suspension system hydraulic drive device according to claim 1, characterized in that, A sliding groove (26) is formed in the support beam (1); A sliding plate (25) which is in sliding cooperation with the sliding groove (26) is fixedly installed on the transmission plate II (24); The transmission plate III (31) is fixedly connected with the top end of the steel wire rope (30).

6. The catenary suspension system hydraulic drive device according to claim 2, characterized in that, The control assembly further comprises a fixed frame VI (36) and a spring type telescopic rod III (37); The fixed frame VI (36) is fixedly installed on the transmission plate II (24); The two ends of the spring type telescopic rod III (37) are fixedly connected with the fixed frame VI (36) and the pressure sensor (38) respectively.

7. The hydraulic drive of the catenary suspension elastic cable according to claim 6, characterized in that A plurality of limiting support plates (39) are fixedly installed on the inner wall of the support frame (11); The pressure sensor (38) is flush with the limiting support plates (39) when the spring type telescopic rod III (37) is compressed to a preset state.

8. The catenary suspension system hydraulic drive device according to claim 2, characterized in that, The plummet adjusting assembly further comprises a guide frame (40), a sliding seat I (41), a sliding seat II (42) and a sliding seat III (43); The guide frame (40) is fixedly installed on both sides of the support beam (1); The sliding seat I (41), the sliding seat II (42) and the sliding seat III (43) are arranged in sequence from top to bottom and are in sliding insertion with the guide frame (40); The two sliding seat I (41) are fixedly connected with the two sides of the U-shaped frame I (17); The two sliding seat II (42) are fixedly connected with the two sides of the U-shaped frame II (19); The sliding seat III (43) is rotatably connected with a connecting side plate (44) at the end portion outside the guide frame (40), and the connecting side plate (44) is rotatably sleeved on the transmission shaft (27).

9. The catenary suspension system hydraulic drive device according to claim 1, characterized in that, Further comprising a guide assembly; The guide assembly comprises a fixed frame II (5), a fixed frame III (6) and a support roller (7); The fixed frame II (5) is fixedly sleeved on the support beam (1); The fixed frame III (6) is fixedly installed on the fixed frame II (5); An open slot is arranged on the fixed frame III (6), and the support roller (7) is rotatably installed in the open slot; The compensation rope of the bearing cable (2) and the contact wire (3) passes through the support roller (7) and is connected with the plummet (4).

10. The catenary suspension system hydraulic drive device according to claim 9, characterized in that, The guiding assembly further comprises arc-shaped fixed plates (8), mounting frames I (9) and rotating drag-reducing sleeves (10); The top of the fixed frame III (6) is fixedly provided with arc-shaped fixed plates (8) on both sides; A plurality of mounting frames I (9) are fixedly arranged between the two arc-shaped fixed plates (8); The plurality of mounting frames I (9) are distributed on the same arc-shaped track with the supporting roller (7) as the center; Each mounting frame I (9) is rotatably provided with a rotating drag-reducing sleeve (10).

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