Wire clamping type overhead line system elastic sling hydraulic driving device

Abstract

The invention provides a wire clamping type overhead line system elastic sling hydraulic driving device, which belongs to the technical field of overhead line system installation and comprises a supporting beam, a balance weight, a supporting frame and a balance weight adjusting assembly. According to the wire clamping type hydraulic driving device for the elastic sling of the contact network, under the condition of non-extreme strong wind weather, the balance weight can automatically adjust the carrier cable and the contact wire, so that the carrier cable and the contact wire are kept in a straightened state, the use cost input of a hydraulic driving structure is reduced, and the working efficiency is improved. And under the condition of extremely strong wind weather, the carrier cable and the contact line can be adjusted by means of the hydraulic cylinder, so that the carrier cable and the contact line are kept in a straightened state, and the working stability of the carrier cable and the contact line is effectively guaranteed. In addition, the control assembly can timely discover falling of the balance weight and send a warning signal to a worker, the reaction time is shortened, and the operation risk is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of contact network installation, and specifically discloses a wire-clamping type contact network elastic sling hydraulic driving device. Background Art

[0002] In electrified railway applications, the catenary system, as the key link in power transmission, is crucial for its stability and safety. The wire-gripping catenary elastic sling is a crucial component in this area, contributing an indispensable role to the safety and efficiency of railway transportation with its unique design and superior performance.

[0003] The clamping catenary elastic sling is a crucial component in the catenary system, used to suspend the contact wire and maintain its elasticity. Made from high-strength materials and meticulously crafted, it ensures stable performance even in harsh environments. Not only does this sling possess excellent load-bearing capacity, easily handling the immense tensile forces generated by high-speed trains, but its elastic design also ensures stable contact with the contact wire despite temperature fluctuations and vibrations caused by train travel, effectively reducing sparks and wear, thereby extending the service life of the catenary.

[0004] According to General Electrification Drawing (2009) 1005 "Contact Suspension Anchor Installation Drawing", a weight must be added to the free ends of the catenary and contact wires. The weight of the weight can be used to straighten the catenary and contact wires during thermal expansion and contraction. Currently, the following technical issues remain to be resolved: 1. In extremely windy weather, the suspended catenary cables, contact wires and weights sway under the action of wind, making it impossible for the catenary cables and contact wires to be effectively straightened; 2. When the weight fell, the staff were unable to understand the situation in time. Summary of the Invention

[0005] The present invention provides a hydraulic driving device for a wire-clamping type contact network elastic sling, which solves at least one of the above technical problems.

[0006] The above-mentioned clamping-type contact network elastic sling hydraulic drive device includes a support beam, a weight, a support frame and a weight adjustment assembly; the support frame is fixed to the support beam; the weight is located inside the support frame, and the top end is connected to the load-bearing cable and the compensation rope of the contact line; the weight adjustment assembly includes a hydraulic cylinder, a U-shaped frame II, a gear plate, a transmission plate II, a transmission shaft, a brake, a retractable reel, a wire rope, a one-way bearing, a gear, a spring-loaded telescopic rod II and a fixed frame V; the U-shaped frame II, transmission plate II and fixed frame V are arranged in sequence from top to bottom, the U-shaped frame II and transmission plate II are slidably connected to the support beam, and the fixed frame V is fixedly connected to the support beam; The U-shaped frame II is driven by a hydraulic cylinder to slide up and down along the support beam; two tooth plates are located on both sides of the U-shaped frame II, and the top ends are connected to the U-shaped frame II; transmission shafts are rotatably installed on both sides of the transmission plate II; the brake connects the transmission plate II and the transmission shaft and is used to brake the transmission shaft; the rewinding and unwinding frame is fixedly installed on the transmission shaft; the wire rope is wound around the rewinding and unwinding frame, and the top end of the wire rope is led out by the rewinding and unwinding frame and fixedly connected to the weight; the inner ring of the one-way bearing is fixedly installed on the transmission shaft; the gear fixed sleeve is arranged on the outer ring of the one-way bearing and meshes with the tooth plate; the two ends of the spring-type telescopic rod II are fixedly connected to the transmission plate II and the fixed frame V respectively.

[0007] In the above-mentioned clamping type contact network elastic sling hydraulic drive device, the weight adjustment assembly also includes a U-shaped frame I, a spring-type telescopic rod I, a support rod, a connecting rod and a transmission plate I; the U-shaped frame I is located above the U-shaped frame II and is slidably connected to the support beam; the hydraulic cylinder is located above the U-shaped frame I, and its two ends are fixedly connected to the support beam and the U-shaped frame I respectively; the two ends of the spring-type telescopic rod I are fixedly connected to the U-shaped frame I and the U-shaped frame II respectively; the top end of the support rod is fixedly connected to the U-shaped frame I; the bottom end of the support rod is located above the U-shaped frame II when the spring-type telescopic rod I is not compressed, and is When the spring-type telescopic rod I is compressed to a preset state, it rests on the U-shaped frame II; the connecting rod passes through the U-shaped frame II, the top end is fixedly connected to the U-shaped frame I, and the bottom end is fixedly connected to the transmission plate I; the above-mentioned linear contact network elastic sling hydraulic drive device also includes a control component; the control component includes a pressure sensor, a wireless communication module and a control module; the pressure sensor is fixedly installed on the transmission plate II, and when the spring-type telescopic rod I is compressed to a preset state, the transmission plate I rests on the pressure sensor; the wireless communication module is used to transmit the detection value of the pressure sensor to the control module; the control module is used to issue a warning signal and to control the brake.

[0008] In the above-mentioned clamping-line contact network elastic sling hydraulic drive device, the cylinder body of the hydraulic cylinder is connected to the support beam through the fixed frame IV, and the rod end is fixedly connected to the U-shaped frame I; the spring-type telescopic rod I is symmetrically arranged on both sides of the support beam, the cylinder body is fixedly connected to the U-shaped frame I, and the rod end is fixedly connected to the U-shaped frame II; the rod end of the spring-type telescopic rod II is fixedly connected to the transmission plate II, and the cylinder body is fixedly connected to the fixed frame V.

[0009] In the above-mentioned hydraulic driving device for the wire-clamping type contact network elastic sling, a plurality of drainage holes are provided at the bottom of the support frame.

[0010] In the above-mentioned hydraulic drive device of the wire-clamping contact network elastic sling, a sliding groove is provided on the support beam; a sliding plate that slides with the sliding groove is fixedly installed on the transmission plate II; a transmission plate III is fixedly installed outside the weight, and the transmission plate III is fixedly connected to the top end of the wire rope.

[0011] In the above-mentioned clamping type contact network elastic sling hydraulic drive device, the control component also includes a fixed frame VI and a spring-type telescopic rod III; the fixed frame VI is fixedly installed on the transmission plate II; the two ends of the spring-type telescopic rod III are respectively fixedly connected to the fixed frame VI and the pressure sensor.

[0012] In the above-mentioned clamping contact network elastic sling hydraulic drive device, multiple limit support plates are fixedly installed on the inner wall of the support frame; the pressure sensor is flush with the limit support plate when the spring-type telescopic rod III is compressed to a preset state.

[0013] In the above-mentioned clamping-line contact network elastic sling hydraulic drive device, the weight adjustment assembly also includes a guide frame, a sliding seat I, a sliding seat II and a sliding seat III; guide frames are fixedly installed on both sides of the support beam; sliding seat I, sliding seat II and sliding seat III are arranged in sequence from top to bottom, and are all slidably connected to the guide frames; the two sliding seats I are fixedly connected to the two sides of the U-shaped frame I; the two sliding seats II are fixedly connected to the two sides of the U-shaped frame II; the end of the sliding seat III located outside the guide frame is rotatably connected to a connecting side plate, and the connecting side plate is rotatably sleeved on the transmission shaft.

[0014] The above-mentioned clamping-line contact network elastic sling hydraulic drive device also includes a guide assembly; the guide assembly includes a fixing frame II, a fixing frame III and a support roller; the fixing frame II is fixedly sleeved on the support beam; the fixing frame III is fixedly installed on the fixing frame II; an open groove is provided on the fixing frame III, and a support roller is rotatably installed in the open groove; the load-bearing cable and the compensation rope of the contact line are passed around the support roller and connected to the weight.

[0015] In the above-mentioned wire-clamping contact network elastic sling hydraulic drive device, the guide assembly also includes an arc-shaped fixed plate, a mounting frame I and a rotating drag reduction sleeve; arc-shaped fixed plates are fixedly installed on both sides of the top of the mounting frame III; multiple mounting frames I are fixedly installed between the two arc-shaped fixed plates; multiple mounting frames I are distributed on the same arc track with the support roller as the center; a rotating drag reduction sleeve is rotatably installed on the outside of each mounting frame I.

[0016] Compared with the prior art, the present invention has the following beneficial effects.

[0017] 1. In the case of non-extremely windy weather, the weight of the above-mentioned hydraulic drive device for the wire-clamping contact network elastic sling can automatically adjust the load-bearing cable and the contact wire to keep the load-bearing cable and the contact wire in a straight state, thereby reducing the cost investment in the use of the hydraulic drive structure. In the case of extremely windy weather, the load-bearing cable and the contact wire can be adjusted with the help of a hydraulic cylinder to keep the load-bearing cable and the contact wire in a straight state, thereby effectively ensuring the working stability of the load-bearing cable and the contact wire.

[0018] 2. The control component can also detect the fall of the weight in time and send a warning signal to the staff, shortening the reaction time and reducing the operational risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the installation of a hydraulic drive device for a clamping catenary elastic sling (the weight connected to the load-bearing cable is not equipped with a support frame, guide assembly, and weight adjustment assembly, while the weight connected to the contact line is equipped with a support frame, guide assembly, and weight adjustment assembly); Figure 2 This is an enlarged view of the weight connected to the contact line; Figure 3 A schematic diagram of the structure of the guide component; Figure 4 Schematic diagram of the structure inside the support frame; Figure 5 for Figure 4 Enlarged view of part A; Figure 6 This is a structural diagram of the weight adjustment assembly; Figure 7 for Figure 6 Enlarged view of part B; Figure 8 This is the assembly drawing of the U-shaped frame I, U-shaped frame II, transmission shaft and guide frame; Figure 9 This is the assembly drawing of the guide frame, sliding seat I, sliding seat II and sliding seat III; Figure 10 This is the assembly drawing of U-shaped frame I and U-shaped frame II; Figure 11 This is the assembly drawing of the drive shaft, brake, reel-up and reel-down rack, and wire rope; Figure 12 This is the matching diagram of the tooth plate and gear.

[0021] Numbers in the figure: 1. Support beam; 2. Load-bearing cable; 3. Contact wire; 4. Weight; 5. Fixing frame II; 6. Fixing frame III; 7. Support roller; 8. Arc-shaped fixing plate; 9. Mounting frame I; 10. Rotating drag reduction sleeve; 11. Support frame; 12. Drain hole; 15. Hydraulic cylinder; 16. Fixing 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. Tooth plate; 24. Transmission Plate II; 25. Sliding plate; 26. Sliding groove; 27. Drive shaft; 28. Brake; 29. ​​Rewinding and unwinding rack; 30. Wire rope; 31. Drive plate III; 32. One-way bearing; 33. Gear; 34. Spring-loaded telescopic rod II; 35. Fixed frame V; 36. Fixed frame VI; 37. Spring-loaded telescopic rod III; 38. Pressure sensor; 39. Limit support plate; 40. Guide frame; 41. Sliding seat I; 42. Sliding seat II; 43. Sliding seat III; 44. Connecting side plate. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] The present embodiment provides a hydraulic drive device for a line-clamping contact network elastic sling, comprising a support beam 1, a weight 4, a support frame 11 and a weight adjustment assembly; the support frame 11 is fixed on the support beam 1; the weight 4 is located in the support frame 11, and the top end is connected to the compensation rope of the load-bearing cable 2 and the contact line 3 (the load-bearing cable 2 and the contact line 3 can each be installed with a contact network compensation device, or can share a contact network compensation device. The compensation rope is a structure connecting the pulley group and the weight 4 in the contact network compensation device, and the contact network compensation device is not shown in the figure); the weight adjustment assembly comprises a hydraulic cylinder 15, a U-shaped frame II 19, a tooth plate 23, a transmission plate II 24, a transmission shaft 27, a brake 28, a retractable reel 29, a 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, the fixed frame V 35 are arranged in order from top to bottom, U The U-shaped frame II 19 and the transmission plate II 24 are slidingly connected to the support beam 1, and the fixed frame V 35 is fixedly connected to 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 tooth plates 23 are located on both sides of the U-shaped frame II 19, and the top is connected to 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 connects the transmission plate II 24 and the transmission shaft 27 for braking the transmission shaft 27; the rewinding and unwinding frame 29 is fixedly mounted on the transmission shaft 27; the wire rope 30 is wound around the rewinding and unwinding frame 29, and the top of the wire rope 30 is led out by the rewinding and unwinding frame 29 and fixedly connected to the weight 4; the inner ring of the one-way bearing 32 is fixedly mounted on the transmission shaft 27; the gear 33 is fixedly sleeved on the outer ring of the one-way bearing 32 and meshes with the tooth plate 23; the two ends of the spring-type telescopic rod II 34 are respectively fixedly connected to the transmission plate II 24 and the fixed frame V 35.

[0024] In non-extremely windy conditions, the hydraulic cylinder 15 is in a non-operating state, the U-shaped frame II 19 is in its initial position, the transmission plate II 24 is in its initial position supported by the spring-loaded telescopic rod II 34, and the weight 4 automatically adjusts as the catenary wire 2 and the contact wire 3 expand and contract. When the catenary wire 2 and the contact wire 3 contract due to cooling, the weight 4 is pulled upward by the traction of the catenary wire 2 and the contact wire 3. The weight 4 drives the reel frame 29 and the transmission shaft 27 to rotate clockwise (e.g., Figure 12 As shown), the reel-up rack 29 pays out the 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 tooth 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 line 3 are heated and stretched, the weight 4 moves downward, and the bending of the wire rope 30 does not affect the movement of the weight 4.

[0025] In the case of extremely strong winds, the hydraulic cylinder 15 pushes the U-shaped frame II 19 downward, and the two tooth plates 23 fixedly connected to the U-shaped frame II 19 move downward accordingly, and the gear 33 meshing with the tooth plates 23 rotates counterclockwise (as shown in FIG. Figure 12As shown in FIG, the gear 33 is rotated in the direction of locking between the inner and outer rings of the one-way bearing 32, so the gear 33 drives the transmission shaft 27 to rotate counterclockwise, and the transmission shaft 27 drives the reeling and unreeling rack 29 to reel in the wire rope 30. The wire rope 30 is reeled and straightened, and the load-bearing cable 2 and the contact line 3 exert an upward pulling force on the weight 4, overcoming the force exerted by the tooth plate 23 on the gear 33, so that the transmission shaft 27 cannot rotate. The brake 28 is activated to limit the transmission shaft 27, and the tooth plate 23 and the gear 33 are meshed and locked. The hydraulic cylinder 15 continues to push the U-shaped frame II 19 downward, and the tooth plate 23, gear 33, reeling and unreeling rack 29, transmission shaft 27, and transmission plate II 24 move downward accordingly. The reeling and unreeling rack 29 drives the weight 4 downward through the wire rope 30, and the load-bearing cable 2 and the contact line 3 are straightened, which can effectively ensure the stability of the load-bearing cable 2 and the contact line 3 in extremely windy weather.

[0026] To sum up, in the above-mentioned hydraulic drive device for the line-clamping contact network elastic sling, in non-extremely windy weather, the weight 4 can automatically adjust the bearing cable 2 and the contact line 3 to keep the bearing cable 2 and the contact line 3 in a straightened state, thereby reducing the cost investment in the use of the hydraulic drive structure. In the case of extremely windy weather, the hydraulic cylinder 15 can be used to adjust the bearing cable 2 and the contact line 3 to keep the bearing cable 2 and the contact line 3 in a straightened state, thereby effectively ensuring the working stability of the bearing cable 2 and the contact line 3.

[0027] In the above-mentioned clamping-line contact network elastic sling hydraulic drive device, the weight adjustment assembly also includes a U-shaped frame I17, a spring-type telescopic rod I18, a support rod 20, a connecting rod 21 and a transmission plate I22; the U-shaped frame I17 is located above the U-shaped frame II19 and is slidably connected to the support beam 1; the hydraulic cylinder 15 is located above the U-shaped frame I17, and its two ends are fixedly connected to the support beam 1 and the U-shaped frame I17 respectively; the two ends of the spring-type telescopic rod I18 are fixedly connected to the U-shaped frame I17 and the U-shaped frame II19 respectively; the spring-type telescopic rod I18 needs to retract to reach a preset value of force, and before the resistance encountered during the movement of the U-shaped frame II19 reaches a preset value, the U-shaped frame II19 moves synchronously with the U-shaped frame I17 under the action of the spring-type telescopic rod I18; the top of the support rod 20 is fixedly connected to the U-shaped frame I17; The bottom end of the support rod 20 is located above the U-shaped frame II 19 when the spring-type telescopic rod I 18 is in an uncompressed state, and rests on the U-shaped frame II 19 when the spring-type telescopic rod I 18 is compressed to a preset state; the connecting rod 21 passes through the U-shaped frame II 19, and the top end is fixedly connected to the U-shaped frame I 17, and the bottom end is fixedly connected to the transmission plate I 22; the above-mentioned linear contact network elastic sling hydraulic drive device also includes a control component; the control component includes a pressure sensor 38, a wireless communication module and a control module; the pressure sensor 38 is fixedly mounted on the transmission plate II 24, and the transmission plate I 22 rests on the pressure sensor 38 when the spring-type telescopic rod I 18 is compressed to a preset state; the wireless communication module is used to transmit the detection value of the pressure sensor 38 to the control module; the control module is used to issue a warning signal and to control the brake 28.

[0028] In non-extremely windy weather, the hydraulic cylinder 15 is in a non-working state, the U-shaped frame I 17 is in the initial position, the U-shaped frame II 19 is in the initial position supported by the spring-type telescopic rod I 18, the transmission plate II 24 is in the initial position supported by the spring-type telescopic rod II 34, and the weight 4 is automatically adjusted when the load-bearing cable 2 and the contact line 3 expand and contract due to heat and cold. The adjustment process is as described above.

[0029] In the case of extremely strong winds, the hydraulic cylinder 15 pushes the U-shaped frame I 17 downward, and the U-shaped frame II 19 and the tooth plate 23 move downward accordingly, and the gear 33 meshing with the tooth plate 23 rotates counterclockwise. At this time, the force rotation direction of the gear 33 is the locking direction between the inner and outer rings of the one-way bearing 32, so the gear 33 drives the transmission shaft 27 to rotate counterclockwise (such as Figure 12As shown in FIG, the transmission shaft 27 drives the reeling and unreeling frame 29 to reel in the wire rope 30. The wire rope 30 is reeled and straightened. The load-bearing cable 2 and the contact line 3 exert an upward pulling force on the weight 4, overcoming the force exerted by the tooth plate 23 on the gear 33, so that the transmission shaft 27 cannot rotate, and the wire rope 30, the reeling and unreeling frame 29, the transmission shaft 27, the gear 33, the tooth plate 23, and the U-shaped frame II 19 move upward. The U-shaped frame II 19 compresses the spring-type telescopic rod I 18 until it contacts the bottom end of the support rod 20, and the transmission plate I 2 2 moves downward relative to U-shaped frame II 19, resting against pressure sensor 38. The pressure value detected by pressure sensor 38 changes, and the wireless communication module transmits the detected value to the control module. The control module determines that the transmission shaft 27 has stopped rotating and controls brake 28 to limit the transmission shaft 27. The toothed plate 23 and gear 33 engage and lock. The hydraulic cylinder 15 continues to push U-shaped frame I 17 downward, and the reel frame 29 drives the weight 4 downward via the wire rope 30, straightening the load-bearing cable 2 and the contact wire 3. In addition to limiting the position of U-shaped frame II 19, the multiple support rods 20 also share the force exerted on the spring-loaded telescopic rod I 18.

[0030] When the weight 4 falls, the weight 4 contacts the pressure sensor 38, and the pressure value detected by the pressure sensor 38 changes. The wireless communication module transmits the detection value to the control module, and the control module sends a warning signal to the staff, promptly informing the staff of the falling weight 4, so as to facilitate the staff to carry out emergency repair work.

[0031] In summary, the arrangement of the U-shaped frame I 17, spring-loaded telescopic rod I 18, support rod 20, connecting rod 21, transmission plate I 22, and control assembly enables real-time monitoring of the rotational state of the transmission shaft 27. When the transmission shaft 27 stops rotating, the brake 28 promptly applies a stop to the transmission shaft 27, preventing the transmission shaft 27 from being forced to rotate again and causing the device to fail. The control assembly also promptly detects the fall of the weight 4 and sends a warning signal to the operator, shortening response time and reducing operational risks.

[0032] In the above-mentioned hydraulic drive device of the wire-clamping contact network elastic sling, the cylinder body of the hydraulic cylinder 15 is connected to the support beam 1 through the fixed frame IV16, and the rod end is fixedly connected to the U-shaped frame I17; the spring-type telescopic rod I18 is symmetrically arranged on both sides of the support beam 1, the cylinder body is fixedly connected to the U-shaped frame I17, and the rod end is fixedly connected to the U-shaped frame II19 to ensure the force balance on both sides of the U-shaped frame I17 and the U-shaped frame II19; the rod end of the spring-type telescopic rod II34 is fixedly connected to the transmission plate II24, and the cylinder body is fixedly connected to the fixed frame V35.

[0033] In the above-mentioned hydraulic driving device for the wire-clamping type contact network elastic sling, a plurality of drainage holes 12 are provided at the bottom of the support frame 11 so as to discharge liquids such as rainwater in the support frame 11 .

[0034] In the above-mentioned clamping-line contact network elastic sling hydraulic drive device, a sliding groove 26 is provided on the support beam 1; a sliding plate 25 that slides with the sliding groove 26 is fixedly installed on the transmission plate II 24 to ensure that the transmission plate II 24 can only move up and down; a transmission plate III 31 is fixedly installed outside the weight 4, and the transmission plate III 31 is fixedly connected to the top end of the wire rope 30, thereby realizing the connection between the wire rope 30 and the weight 4.

[0035] In the above-mentioned wire-clamping contact network elastic sling hydraulic drive device, the control component also includes a fixed frame VI36 and a spring-type telescopic rod III37; the fixed frame VI36 is fixedly installed on the transmission plate II24; the two ends of the spring-type telescopic rod III37 are respectively fixedly connected to the fixed frame VI36 and the pressure sensor 38 to buffer the pressure sensor 38.

[0036] In the aforementioned hydraulic drive device for the clamping catenary elastic sling, multiple limit support plates 39 are fixedly mounted on the inner wall of the support frame 11. When the spring-loaded telescopic rod III 37 is compressed to a preset state, the pressure sensor 38 is flush with the limit support plates 39. When the falling weight 4 presses against the pressure sensor 38, the spring-loaded telescopic rod III 37 contracts, causing the weight 4 to move downward against the limit support plates 39. These limit support plates 39 support the weight 4 and ensure the safety of the pressure sensor 38.

[0037] In the above-mentioned clamping-type catenary elastic sling hydraulic drive device, the weight adjustment assembly also includes a guide frame 40, a sliding seat I 41, a sliding seat II 42, and a sliding seat III 43. The guide frames 40 are fixedly mounted on both sides of the support beam 1. The sliding seats I 41, II 42, and III 43 are arranged in sequence from top to bottom and are all slidably plugged into the guide frames 40. The two sliding seats I 41 are fixedly connected to both sides of the U-shaped frame I 17. The two sliding seats II 42 are fixedly connected to both sides of the U-shaped frame II 19. The end of the sliding seat III 43 located outside the guide frame 40 is rotatably connected to a connecting side plate 44, which is rotatably sleeved on the transmission shaft 27. This supports and limits the position of the U-shaped frames I 17, II 19, and transmission shaft 27, ensuring the stability of the up and down movement of the U-shaped frames I 17, II 19, and transmission shaft 27.

[0038] The aforementioned hydraulic drive device for the clamping-type contact network elastic sling also includes a guide assembly; the guide assembly includes a fixing frame II5, a fixing frame III6, and a support roller 7; the fixing frame II5 is fixedly mounted on the support beam 1; the fixing frame III6 is fixedly mounted on the fixing frame II5; the fixing frame III6 is provided with an open slot, in which the support roller 7 is rotatably mounted; the compensating ropes of the catenary 2 and the contact wire 3 pass through the support roller 7 and are connected to the weight 4, which supports and redirects the compensating ropes. Under the action of the guide assembly, the compensating ropes are perpendicular to the horizontal plane, and the weight 4 applies a certain amount of tension to the catenary 2 and the contact wire 3 in real time, straightening the portion of the catenary 2 and the contact wire 3 located between the two support beams 1.

[0039] In the aforementioned hydraulic drive device for the clamping-wire catenary elastic sling, the guide assembly further includes an arcuate fixing plate 8, a mounting bracket I9, and a rotating drag-reducing sleeve 10. Arcuate fixing plates 8 are fixedly mounted on both sides of the top of mounting bracket III 6. Multiple mounting brackets I9 are fixedly mounted between the two arcuate fixing plates 8. Multiple mounting brackets I9 are distributed along the same arcuate trajectory centered on the support roller 7. A rotating drag-reducing sleeve 10 is rotatably mounted on the exterior of each mounting bracket I9. Multiple mounting brackets I9 distributed along the same arcuate trajectory guide and limit the compensating rope, preventing it from detaching from the support roller 7, ensuring that it moves along the preset trajectory, and minimizing the risk of the compensating rope detaching from the trajectory.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydraulic drive device for a wire-clamping contact network elastic sling, characterized in that: It comprises a support beam (1), a weight (4), a support frame (11) and a weight adjustment assembly; The support frame (11) is fixed on the support beam (1); The weight (4) is located in the support frame (11), and the top end is connected to the load-bearing cable (2) and the compensation rope of the contact line (3); The weight adjustment assembly includes a hydraulic cylinder (15), a U-shaped frame II (19), a tooth plate (23), a transmission plate II (24), a transmission shaft (27), a brake (28), a reeling frame (29), a wire rope (30), a one-way bearing (32), a gear (33), a spring-type telescopic rod II (34) and a fixing 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), the transmission plate II (24) and the support beam (1) are slidably connected, and the fixed frame V (35) is fixedly connected to the support beam (1); The U-shaped frame II (19) is driven by a hydraulic cylinder (15) to slide up and down along the support beam (1); Two tooth plates (23) are located on both sides of the U-shaped frame II (19), and the top ends are connected to the U-shaped frame II (19); Transmission shafts (27) are rotatably mounted on both sides of the transmission plate II (24); The brake (28) is connected to the transmission plate II (24) and the transmission shaft (27) and is used to brake the transmission shaft (27); The reeling and unreeling frame (29) is fixedly mounted on the transmission shaft (27); The steel wire rope (30) is wound on the retractable reel frame (29), and the top end of the steel wire rope (30) is drawn out from the retractable reel frame (29) and fixedly connected to the weight (4); The inner ring of the one-way bearing (32) is fixedly mounted on the transmission shaft (27); The gear (33) is fixedly sleeved on the outer ring of the one-way bearing (32) and meshes with the gear plate (23); The two ends of the spring-type telescopic rod II (34) are fixedly connected to the transmission plate II (24) and the fixing frame V (35) respectively.

2. The hydraulic driving device for the elastic cable of the contact wire clamping type according to claim 1 is characterized in that: The weight adjustment 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 to the support beam (1); The hydraulic cylinder (15) is located above the U-shaped frame I (17), and its two ends are fixedly connected to the support beam (1) and the U-shaped frame I (17) respectively; The two ends of the spring-type telescopic rod I (18) are fixedly connected to 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 to the U-shaped frame I (17); The bottom end of the support rod (20) is located above the U-shaped frame II (19) when the spring-type telescopic rod I (18) is in an uncompressed state, and rests against the U-shaped frame II (19) when the spring-type telescopic rod I (18) is compressed to a preset state; The connecting rod (21) passes through the U-shaped frame II (19), the top end is fixedly connected to the U-shaped frame I (17), and the bottom end is fixedly connected to the transmission plate I (22); The clamping type contact network elastic sling hydraulic drive device also includes a control component; The control assembly includes a pressure sensor (38), a wireless communication module and a control module; The pressure sensor (38) is fixedly mounted on the transmission plate II (24), and when the spring-type telescopic rod I (18) is compressed to a preset state, the transmission plate I (22) abuts against the pressure sensor (38); The wireless communication module is used to transmit the detection value of the pressure sensor (38) to the control module; The control module is used to issue a warning signal and to control a brake (28).

3. The clamping type contact network elastic sling hydraulic drive device according to claim 2, characterized in that: The cylinder body of the hydraulic cylinder (15) is connected to the support beam (1) via a fixing frame IV (16), and the rod end is fixedly connected to 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 to the U-shaped frame I (17), and the rod end is fixedly connected to the U-shaped frame II (19); The rod end of the spring-type telescopic rod II (34) is fixedly connected to the transmission plate II (24), and the cylinder body is fixedly connected to the fixed frame V (35).

4. The clamping type contact network elastic sling hydraulic drive device according to claim 1, characterized in that: A plurality of drainage holes (12) are provided at the bottom of the support frame (11).

5. The clamping type contact network elastic sling hydraulic driving device according to claim 1, characterized in that: A sliding groove (26) is provided on the support beam (1); A sliding plate (25) is fixedly mounted on the transmission plate II (24) and is slidably engaged with the sliding groove (26); A transmission plate III (31) is fixedly installed outside the weight (4), and the transmission plate III (31) is fixedly connected to the top end of the wire rope (30).

6. The clamping type contact network elastic sling hydraulic driving device according to claim 2, characterized in that: The control assembly further includes a fixing frame VI (36) and a spring-loaded telescopic rod III (37); The fixing frame VI (36) is fixedly mounted on the transmission plate II (24); The two ends of the spring-type telescopic rod III (37) are fixedly connected to the fixing frame VI (36) and the pressure sensor (38) respectively.

7. The clamping type contact network elastic sling hydraulic driving device according to claim 6, characterized in that: A plurality of limiting support plates (39) are fixedly mounted on the inner wall of the support frame (11); The pressure sensor (38) is flush with the limit support plate (39) when the spring-type telescopic rod III (37) is compressed to a preset state.

8. The clamping type contact network elastic sling hydraulic driving device according to claim 2, characterized in that: The weight adjustment assembly further includes a guide frame (40), a sliding seat I (41), a sliding seat II (42) and a sliding seat III (43); Guide frames (40) are fixedly mounted on both sides of the support beam (1); The sliding seat I (41), sliding seat II (42) and sliding seat III (43) are arranged in sequence from top to bottom and are all slidably connected to the guide frame (40); Two sliding seats I (41) are fixedly connected to both sides of the U-shaped frame I (17); Two sliding seats II (42) are fixedly connected to both sides of the U-shaped frame II (19); The end of the sliding seat III (43) located outside the guide frame (40) is rotatably connected to a connecting side plate (44), and the connecting side plate (44) is rotatably sleeved on the transmission shaft (27).

9. The clamping type contact network elastic sling hydraulic driving device according to claim 1, characterized in that: Also included is a guide assembly; The guide assembly includes a fixing frame II (5), a fixing frame III (6) and a supporting roller (7); The fixing frame II (5) is fixedly mounted on the support beam (1); A fixing frame III (6) is fixedly mounted on the fixing frame II (5); The fixing frame III (6) is provided with an open slot, in which a supporting roller (7) is rotatably mounted; The compensating ropes of the load-bearing cable (2) and the contact line (3) are passed around the supporting roller (7) and connected to the weight (4).

10. The clamping type contact network elastic sling hydraulic driving device according to claim 9, characterized in that: The guide assembly further includes an arc-shaped fixing plate (8), a mounting frame I (9) and a rotating drag reduction sleeve (10); Arc-shaped fixing plates (8) are fixedly mounted on both sides of the top of the fixing frame III (6); A plurality of mounting brackets I (9) are fixedly mounted between the two arc-shaped fixing plates (8); A plurality of mounting frames I (9) are distributed on the same arc track with the supporting roller (7) as the center; A rotating drag reduction sleeve (10) is rotatably mounted on the outside of each mounting frame I (9).

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