A catenary cable suspension assembly feeding device and system for installing catenary droppers

Abstract

A catenary cable suspension assembly feed device and system for installing catenary droppers. The feed device comprises a clamping mechanism, a locking mechanism, and a feeding mechanism. The clamping mechanism includes a clamping block for clamping the centerline nose of the catenary cable suspension assembly. The locking mechanism includes a rotatable locking plate that connects and disconnects with the clamping block during rotation, locking the clamping mechanism in place when the locking plate connects with the clamping block. The feeding mechanism is used to drive the clamping mechanism to move when the locking plate disconnects from the clamping block. This invention replaces manual installation of the catenary cable suspension assembly, improving installation efficiency and accuracy.

Description

Technical Field

[0001] The present invention relates to the field of electrified railways, in particular to a catenary cable suspension assembly feeding device and system for installing catenary dropper strings. Background Art

[0002] A contact wire, parallel to the track, is laid above the electrified railway tracks. Sliding contact between the contact wire and the locomotive pantograph transmits electrical energy from the catenary to the electric locomotive or EMU. To ensure current collection quality, the contact wire must be straight and level, ensuring smooth, high-speed sliding contact between the pantograph and the contact wire without jumping or disconnection. To this end, numerous integral string-hanging devices are installed between the contact wire and the catenary to suspend the contact wire. The catenary string-hanging clamps clamp the catenary by tightening their own fixing bolts. However, installation requires threading the fixing bolts, installing the nuts, and then tightening them with a wrench, which is time-consuming and labor-intensive. Furthermore, installing the fixing bolts at high altitude poses a risk of falling to construction workers. Summary of the Invention

[0003] In the prior art, the bolts of the catenary wire clamp are manually installed, which is time-consuming, labor-intensive and inefficient. In order to solve the above problems, the present invention provides a catenary wire suspension assembly feeding device for installing the contact network suspension string. The catenary wire suspension assembly is clamped by a clamping mechanism, and the suspension assembly is passed through the suspension string clamp by the feeding mechanism, replacing manual installation, thereby increasing installation efficiency and avoiding manual work at height.

[0004] In order to achieve the above-mentioned purpose, the specific scheme adopted by the present invention is: a feeding device of a load-bearing cable suspension assembly for installing a contact network suspension string, the feeding device including a clamping mechanism, a locking mechanism and a feeding mechanism; the clamping mechanism includes a clamping block for clamping the center line nose of the load-bearing cable suspension assembly; the locking mechanism includes a rotatable locking plate, which is connected to or separated from the clamping block during rotation, and locks the position of the clamping mechanism when the locking plate is connected to the clamping block; the feeding mechanism is used to drive the clamping mechanism to move when the locking plate is separated from the clamping block.

[0005] This is a further optimization of the feed device of the load-bearing cable suspension assembly for installing the contact network suspension string of the present invention: the clamping block is provided with a groove for accommodating the tail of the wire nose, and a number of elastic components are provided on both sides of the groove for restricting the tail of the wire nose in the groove.

[0006] This is a further optimization of the feed device of the load-bearing cable suspension assembly for installing the contact network suspension string of the present invention: the elastic component includes a mounting shaft with a second blind hole at the center position, a ball is arranged in the second blind hole, and a compression spring for pushing the ball so that a part of the ball extends out of the mounting shaft, and the extended part of the ball restricts the tail of the wire nose in the groove.

[0007] This is a further optimization of the feeding device of the load-bearing cable suspension assembly used for installing the contact network suspension string of the present invention: the clamping mechanism also includes a protective block and a first connecting plate, and the protective block is provided with a protective hole that can accommodate the head of the fixing bolt in the load-bearing cable suspension assembly, and the clamping block and the protective block are both fixedly connected to the first connecting plate.

[0008] This is a further optimization of the feeding device of the load-bearing cable suspension assembly for installing the contact network suspension string of the present invention: the feeding mechanism includes a second connecting plate slidingly connected to the first connecting plate and a driving spring for pulling the first connecting plate, and the two ends of the driving spring are respectively detachably connected to the first connecting plate and the second connecting plate.

[0009] This is a further optimization of the feed device of the load-bearing cable suspension assembly for installing the contact network suspension string of the present invention: the first connecting plate is connected to the second connecting plate through a sliding unit, the sliding unit includes a sliding rail arranged parallel to the axis of the fixing bolt and a slider slidingly connected to the sliding rail, the sliding rail is fixedly connected to the second connecting plate, and the slider is fixedly connected to the first connecting plate.

[0010] This is a further optimization of the feed device of the load-bearing cable suspension assembly for installing the contact network suspension string of the present invention: the locking plate is rotatably connected to the second connecting plate, and a locking hook is fixedly connected to the locking plate for hooking the first connecting plate to lock the position of the first connecting plate. The locking plate is also connected to a locking spring for maintaining the position state of the locking plate after the locking hook hooks the first connecting plate.

[0011] This is a further optimization of the load-bearing cable suspension assembly feeding device for installing the contact network hanger string of the present invention: a limiting plate for limiting the first connecting plate is fixedly connected to the slide rail.

[0012] This is a further optimization of the load-bearing cable suspension assembly feeding device for installing a contact network suspension string of the present invention: a first fixed shaft is fixedly connected to the locking plate, a second fixed shaft is fixedly connected to the limit plate, and both ends of the locking spring are detachably connected to the first fixed shaft and the second fixed shaft respectively.

[0013] A catenary cable suspension assembly feeding system for installing contact network dropper strings comprises the above-mentioned feeding device and a manipulator for controlling the feeding device.

[0014] Beneficial effects:

[0015] 1) The present invention provides a catenary cable suspension assembly feeding device and system for installing catenary droppers, which replaces manual installation, improves installation efficiency and accuracy, and avoids manual high-altitude work;

[0016] 2) In the present invention, an elastic component is used to restrict the tail of the lug within the groove. When the lug tail enters or exits the groove, the lug tail squeezes the protruding portion of the ball bearing so that the ball bearing enters the installation shaft. After the lug tail enters the groove, the restoring force of the compression spring pushes the ball bearing out, thereby preventing the lug tail from falling out of the groove. After installation is completed, the lug tail can also be smoothly removed from the groove.

[0017] 3) In the present invention, a locking plate pulled by a locking spring is used to fix the suspension assembly at a position away from the string clamp. When the suspension assembly needs to be installed, it is only necessary to rotate the locking plate, and the suspension assembly is installed by pulling the driving spring, which is simple and convenient.

[0018] 4) In the present invention, the driving spring and the locking spring are always in a stretched state and are prone to wear and tear. Therefore, both are detachably connected for easy replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the feeding device;

[0020] Figure 2 is a top view of the feeding device;

[0021] Figure 3 It is a structural diagram when the clamping mechanism is locked;

[0022] Figure 4 It is a structural diagram when the clamping mechanism is pulled;

[0023] Figure 5 It is a structural diagram of the clamping mechanism when it reaches the specified position;

[0024] Figure 6 is a cross-sectional view of the feeding device;

[0025] Figure 7 is a cross-sectional view of the clamping mechanism;

[0026] Figure 8 yes Figure 7 Middle AA section view;

[0027] Description of the drawings: 1. Sleeve, 2. First connecting plate, 3. Reinforcing rib, 4. Connecting block, 5. Slider, 6. Slide rail, 7. Second connecting plate, 8. Rotating shaft, 9. Handle, 10. Locking plate, 11. Limiting part, 12. Locking hook, 13. Locking spring, 14. Limiting plate, 15. Second fixed shaft, 16. First fixed shaft, 17. Through hole, 18. Drive spring, 19. Base plate, 20. Mounting shaft, 21. Fixing bolt, 22. Wire nose, 23. Bolt stop washer, 24. Protective block, 25. Ball, 26. Third fixed shaft, 27. Protective hole, 28. Clamping block, 29. Groove, 30. Compression spring. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] A feeding device for a catenary suspension assembly used for installing catenary strings, wherein the catenary suspension assembly includes a fixing bolt 21, a bolt stop washer 23 and a wire nose 22, wherein the fixing bolt 21 passes through the bolt stop washer 23 and the wire nose 22 in sequence. The feeding device includes a clamping mechanism, a locking mechanism and a feeding mechanism; the clamping mechanism includes a clamping block 28 for clamping the wire nose 22 in the catenary suspension assembly, wherein the wire nose 22 can hold up the fixing bolt 21 and the bolt stop washer 23, and the tail of the wire nose 22 is detachably arranged on the clamping block 28, wherein the head of the wire nose 22 is placed horizontally, and a bolt brake washer 23 and the head of the fixing bolt 21 are arranged above the clamping block 28 in sequence, and the tail of the fixing bolt 21 passes through the bolt brake washer 23 and the head through hole; the lower surface of the clamping block 28 is an inclined surface, and the tail is arranged at the inclined surface; the locking mechanism includes a rotatable locking plate 10, which is connected to or separated from the clamping block 28 during rotation. When the locking plate 10 is connected to the clamping block 28, the locking plate 10 is in a state of rotation with respect to the clamping block 28. 8. The position of the clamping mechanism is locked when connected. After the suspension assembly is installed on the feeding device, it needs to be fixed in a certain position and have a certain distance from the string clamp. Therefore, the locking plate 10 is required to lock it. When the suspension assembly is installed, the locking plate 10 is rotated to release the lock so that the suspension assembly can move. The feeding mechanism is used to drive the clamping mechanism to move when the locking plate 10 is separated from the clamping block 28, and the suspension assembly is pulled by the return elastic force of the driving spring 18, so that the tail of the fixing bolt 21 in the suspension assembly passes through the string clamp, and the head of the wire nose 22, the bolt stop washer 23 and the head of the fixing bolt 21 are arranged above the string clamp in sequence, and the suspension assembly is fixed to the string clamp by the locking nut.

[0030] The clamping block 28 is further defined as follows: the wire nose 22 includes an integrally connected tail and a head for connecting the fixing bolt 21. A groove 29 for accommodating the tail is provided on the clamping block 28. The groove 29 is a U-shaped groove, and the diameter of the bottom arc is the same as the diameter of the tail. Grooves running through both sides of the groove 29 are provided to facilitate the installation of the wire nose 22 while reducing the weight of the clamping block 28. Several elastic components are provided on both sides of the groove 29 to limit the tail in the groove 29. The elastic components are detachably arranged on the clamping block for easy replacement.

[0031] The elastic component is further defined as follows: the elastic component includes a mounting shaft 20 with a second blind hole at the center, the outer surface of the mounting shaft 20 is a threaded surface, and threaded holes that match the mounting shaft 20 are opened on both sides of the corresponding groove 29 to realize the detachability of the elastic component, and an inner hexagonal blind hole is opened at one end opposite to the second blind hole to facilitate the installation of the elastic component. A ball 25 and a compression spring 30 for pushing the ball 25 so that a part of the ball 25 extends out of the mounting shaft 20 are provided in the second blind hole. The part of the ball 25 that extends out limits the tail of the wire nose 22 in the groove 29, compressing One end of the spring 30 is fixedly connected to the bottom of the second blind hole, and the other end is fixedly connected to the ball 25, and the compression spring 30 cannot completely push the ball 25 out of the second blind hole; in the process of the tail entering the groove 29, the protruding part of the ball 25 is squeezed by the tail and presses the ball 25 into the second blind hole. At this time, the compression spring 30 is compressed; after the tail enters the groove 29, the restoring force of the compression spring 30 pushes a part of the ball 25 out of the second blind hole, so that the ball 25 applies an oblique upward force on the tail, restricting the tail in the groove 29 to prevent the tail from falling out of the groove 29.

[0032] Further define the clamping mechanism: Figure 6 As shown, the clamping mechanism also includes a protection block 24 and a first connecting plate 2. A protection hole 27 is provided on the protection block 24 to accommodate the head of the fixing bolt 21. In this embodiment, the protection block 24 is cylindrical and is arranged above the line nose 22. The protection hole 27 is provided at the bottom of the protection block 24 and is coaxial with the protection block 24. The setting of the protection block 24 protects the suspension assembly and prevents the fixing bolt 21 and the bolt stop washer 23 from falling off during the movement of the clamping mechanism. The clamping block 28 and the protection block 24 are both fixedly connected to the first connecting plate 2, as shown in FIG. Figure 2As shown, the right end of the first connecting plate 2 is arc-shaped, and its diameter is the same as that of the sleeve 1. In this embodiment, the clamping block 28 is fixedly connected to the protective block 24 through the sleeve 1. The sleeve 1 and the protective block 24 are coaxially arranged. The inner diameter of the sleeve 1 is equal to the outer diameter of the protective block 24. The height of the sleeve 1 is less than the height of the protective block 24, and the lower surface of the sleeve 1 is higher than the lower surface of the protective block 24. The sleeve 1 and the clamping block 28 can be integrally connected. The connection between the protective block 24 and the clamping block 28 and the first connecting plate 2 can be a bolt connection. The top of the protective block 24 is integrally connected with a circular protrusion, and the first connecting plate 2 is correspondingly provided with a circular groove. The positioning of the protective block is achieved through the cooperation of the circular protrusion and the circular groove.

[0033] The feeding mechanism is further defined as follows: the feeding mechanism includes a second connecting plate 7, a slide rail 6 arranged parallel to the axis of the fixing bolt 21, and a driving spring 18 for pulling the first connecting plate 2, wherein the slide rail 6 is fixedly connected to the second connecting plate 7, a slider 5 is slidably connected to the slide rail 6, and the slider 5 is fixedly connected to the first connecting plate 2, and the two ends of the driving spring 18 are detachably connected to the slide rail 6 and the first connecting plate 2 respectively. A limit plate 14 is fixedly connected to the slide rail 6 to limit the position of the first connecting plate 2. Figure 6 As shown, in this embodiment, the feeding mechanism also includes a base plate 19 fixedly connected to the limit plate 14, the limit plate 14 and the base plate 19 are vertically arranged, and the connection method between the two can be bolt connection or integral connection. In this embodiment, the limit plate 14 and the base plate 19 are integrally connected; a slide rail 6 is fixedly connected to the limit plate 14, and the slide rail 6 is vertically arranged to the base plate 19. The lower part of the slide rail 6 is connected to the limit plate 14 by a number of bolts, and the number of bolts can be 2-4. The upper part of the slide rail 6 is fixedly connected to the second connecting plate 7, and the connection method between the two is bolt connection.

[0034] A connecting block 4 is integrally connected to the first connecting plate 2, and a third fixed shaft 26 is fixedly connected to the bottom plate 19 and the connecting block 4 on the same side. Both ends of the driving spring 18 are detachably connected to the third fixed shaft 26, and a reinforcing rib 3 is fixedly connected between the connecting block 4 and the first connecting plate 2. The connection method of the two can be welding or integral connection. In this embodiment, the two are integrally connected.

[0035] like Figure 2 As shown, a through hole 17 is opened on the left side of the first connecting plate 2, and the second connecting plate 7, the slide rail 6 and the slider 5 pass through the through hole, and the slider 5 is fixedly connected to the right inner side surface of the through hole 17. The two are connected by bolts, and the part of the first connecting plate 2 located on the left side of the slide rail 6 is the limiting part 11.

[0036] The locking plate 10 is further defined as follows: the locking plate 10 is rotatably connected to the second connecting plate 7, as shown in FIG. Figure 3As shown, the locking plate 10 is arranged on the left side of the second connecting plate 7, and the second connecting plate 7 is vertically fixedly connected to two symmetrical connecting plates, and a rotating shaft 8 is fixedly connected to the connecting plate, and the locking plate 10 is rotatably connected to the rotating shaft 8; a handle 9 is fixedly connected to the locking plate 10, and a locking hook 12 is fixedly connected to the locking plate 10 for hooking the first connecting plate 2 to lock the position of the first connecting plate 2. The locking plate 10 is also connected to a locking spring 13 for maintaining the position state of the locking plate 10 after the locking hook 12 hooks the first connecting plate 2. Before the hanging string is installed, the locking hook 12 contacts the lower surface of the limit portion 11, fixing the slider 5 on the upper part of the slide rail 6. At this time, the locking spring 13 is in a stretched state; when the hanging string is installed, the handle 9 is pulled to rotate the locking plate 10 counterclockwise. At this time, the first connecting plate 2 is unlocked and is pulled downward by the driving spring 18 until the limit portion 11 of the first mounting plate 2 contacts the limit plate 14.

[0037] The locking spring is further defined as follows: a first fixed shaft 16 is fixedly connected to the locking plate 10, and a second fixed shaft 15 is fixedly connected to the limit plate 14. In this embodiment, the second fixed shaft 15 can be a bolt, and the two ends of the locking spring 13 are detachably connected to the first fixed shaft 16 and the second fixed shaft 15 respectively. The locking spring 13 is always in a stretched state and is prone to wear and tear. Therefore, the locking spring 13 is detachably connected to facilitate regular replacement.

[0038] A catenary wire suspension assembly feeding system for installing catenary wires includes the above-mentioned feeding device and a manipulator for controlling the feeding device. During the installation of the catenary wires, the catenary wire suspension assembly feeding device is raised to a high altitude via a working platform. At this time, the state of the feeding device is as follows: Figure 3 As shown; when the load-bearing cable is installed, the manipulator lifts and toggles the handle 9, and the locking hook 12 rotates clockwise, so that the locking hook 12 is separated from the limit portion 11, and the driving spring 18 pulls the first mounting plate 2 downward. At this time, the state of the feeding device is as shown Figure 4 When the first mounting plate 2 moves to the position of the limit plate 14, the state of the feeding device is as shown. Figure 5 As shown, the catenary suspension string can be installed. The feeding system automates the feeding process of the suspension assembly, avoiding manual high-altitude work.

[0039] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A catenary cable suspension assembly feeding device for installing a catenary dropper string, characterized by: The feeding device includes a clamping mechanism, a locking mechanism and a feeding mechanism; The clamping mechanism includes a clamping block (28) for clamping the centerline nose (22) of the load-bearing cable suspension assembly; The clamping block (28) is provided with a groove (29) for accommodating the tail of the wire nose, and a plurality of elastic components for confining the tail of the wire nose in the groove (29) are provided on both sides of the groove (29); The clamping mechanism further comprises a protection block (24) and a first connecting plate (2), wherein the protection block (24) is provided with a protection hole (27) capable of accommodating the head of a fixing bolt (21) in the load-bearing cable suspension assembly, and the clamping block (28) and the protection block (24) are both fixedly connected to the first connecting plate (2); The locking mechanism comprises a rotatable locking plate (10), which is connected to or separated from the clamping block (28) during rotation, and locks the position of the clamping mechanism when the locking plate (10) is connected to the clamping block (28); The feeding mechanism is used to drive the clamping mechanism to move when the locking plate (10) is separated from the clamping block (28); The feeding mechanism comprises a second connecting plate (7) slidably connected to the first connecting plate (2) and a driving spring (18) for pulling the first connecting plate (2), wherein both ends of the driving spring (18) are detachably connected to the first connecting plate (2) and the second connecting plate (7); The first connecting plate (2) is connected to the second connecting plate (7) via a sliding unit, the sliding unit comprising a sliding rail (6) arranged parallel to the axis of the fixing bolt (21) and a sliding block (5) slidably connected to the sliding rail (6), the sliding rail (6) being fixedly connected to the second connecting plate (7), and the sliding block (5) being fixedly connected to the first connecting plate (2); The locking plate (10) is rotatably connected to the second connecting plate (7), and a locking hook (12) is fixedly connected to the locking plate (10) for hooking the first connecting plate (2) to lock the position of the first connecting plate (2). The locking plate (10) is also connected to a locking spring (13) for maintaining the position of the locking plate (10) after the locking hook (12) hooks the first connecting plate (2).

2. The catenary cable suspension assembly feeding device for installing a catenary dropper string according to claim 1, characterized in that: The elastic component comprises a mounting shaft (20) with a second blind hole at a central position, a ball (25) provided in the second blind hole, and a compression spring (30) for pushing the ball (25) so that a portion of the ball (25) extends out of the mounting shaft (20), and the extended portion of the ball (25) restricts the tail of the wire nose in the groove (29).

3. The catenary cable suspension assembly feeding device for installing a catenary dropper string according to claim 1, characterized in that: A limiting plate (14) for limiting the position of the first connecting plate (2) is fixedly connected to the slide rail (6).

4. The catenary cable suspension assembly feeding device for installing a catenary dropper string according to claim 3, characterized in that: The locking plate (10) is fixedly connected to a first fixed shaft (16), the limiting plate (14) is fixedly connected to a second fixed shaft (15), and both ends of the locking spring (13) are detachably connected to the first fixed shaft (16) and the second fixed shaft (15), respectively.

5. A catenary cable suspension assembly feed system for installing catenary droppers, characterized by: The invention comprises the feeding device according to any one of claims 1 to 4 and a manipulator for controlling the feeding device.

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