A load-bearing cable eye grabbing device for installing contact network suspension strings

Abstract

A load-bearing cable eye gripping device for installing a contact network suspension string, comprising a clamping mechanism, a locking mechanism and a feeding mechanism; the clamping mechanism comprises a fixed clamping block, a movable clamping block and a plurality of elastic members capable of pulling the movable clamping block toward the fixed clamping block, a clamping space for accommodating the eye is formed between the fixed clamping block and the movable clamping block; the locking mechanism comprises a rotatable locking plate, which is connected to or separated from the fixed clamping block during rotation, and locks the position of the clamping mechanism when the locking plate is connected to the fixed clamping block; the feeding mechanism is used to drive the clamping mechanism to move when the locking plate is separated from the fixed clamping block, grab the load-bearing cable eye, and push the eye to a specified position through the feeding mechanism, thereby completing the intelligent installation of the contact network suspension string, replacing manual installation, ensuring the safety of installation workers, and greatly improving installation efficiency and installation accuracy.

Description

Technical Field

[0001] The invention relates to the field of electrified railway contact network erection, in particular to a load-bearing cable eye grabbing device for installing contact network drop strings. Background Art

[0002] The catenary is a transmission network laid on a track and maintained at a certain distance from the top of the railway track. Traction power enters the EMU through the catenary through the sliding contact between the pantograph and the catenary, driving the traction motors to propel the train. Therefore, the installation accuracy and intelligent installation of the catenary are particularly important. Currently, the installation of catenary is largely manual, which is risky, has low precision, and is inefficient. Summary of the Invention

[0003] In order to solve the shortcomings of low installation precision and low installation efficiency in the prior art, intelligent installation of suspension strings is adopted. The present invention provides a load-bearing cable eye gripping device for contact network suspension string installation, which clamps the eye by means of a fixed clamping block and a movable clamping block. When installing the suspension string, the push rod is pushed to drive the clamping mechanism to move until the eye moves to a specified position. At this time, the locking plate is used to lock the feed mechanism and the suspension string is installed. After the installation is completed, the locking plate is rotated to release the lock on the feed mechanism, and the driving spring pulls the feed mechanism to reset, thereby realizing intelligent installation of the suspension string and improving installation efficiency.

[0004] In order to achieve the above-mentioned purpose, the specific scheme adopted by the present invention is: a load-bearing rope eye grabbing device for the installation of contact network suspension strings, including a clamping mechanism, a locking mechanism and a feeding mechanism; the clamping mechanism includes a fixed clamping block, a movable clamping block and a plurality of elastic members that can pull the movable clamping block toward the fixed clamping block, and a clamping space that can accommodate the eye is formed between the fixed clamping block and the movable clamping block; the locking mechanism includes a rotatable locking plate, which is connected to or separated from the fixed clamping block during rotation, and locks the position of the clamping mechanism when the locking plate is connected to the fixed clamping block; the feeding mechanism is used to drive the clamping mechanism to move when the locking plate is separated from the fixed clamping block.

[0005] This is a further optimization of the load-bearing cable eye grabbing device for installing a contact network dropper string of the present invention: a limiting component capable of limiting the movable clamping block is provided between the fixed clamping block and the movable clamping block.

[0006] This is a further optimization of the load-bearing cable eye grabbing device for installing a contact network suspension string of the present invention: the limiting assembly includes two limiting pins respectively fixedly connected to the movable clamping block and the fixed clamping block, and the two limiting pins are correspondingly arranged.

[0007] This is a further optimization of the load-bearing cable eye grabbing device for installing a contact network suspension string of the present invention: the elastic member includes a tension spring, and its two ends are detachably arranged on the fixed clamping block and the movable clamping block respectively.

[0008] This is a further optimization of the load-bearing cable eye grabbing device for installing a contact network suspension string of the present invention: the clamping mechanism also includes a second connecting plate fixedly connected to the fixed clamping block, and the second connecting plate is slidably connected to the movable clamping block, wherein the second connecting plate is fixedly connected to the first slide rail, and the first slider is slidably provided on the first slide rail, and the first slider is fixedly connected to the movable clamping block.

[0009] This is a further optimization of the load-bearing cable eye grabbing device for installing a contact network suspension string of the present invention: the feeding mechanism includes a base plate, a movable plate slidably connected to the base plate, and a driving spring for pulling the movable plate, wherein the movable plate is fixedly connected to the second connecting plate, a second slide rail is fixedly connected to the base plate, and a second slider fixedly connected to the movable plate is slidably provided on the second slide rail, and the two ends of the driving spring are detachably provided on the base plate and the movable plate respectively.

[0010] This is a further optimization of the load-bearing cable eye grabbing device for installing the contact network suspension string of the present invention: a limit plate capable of limiting the movable plate is fixedly connected to the base plate, and a push rod fixedly connected to the movable plate is slidably provided on the limit plate.

[0011] This is a further optimization of the load-bearing cable eye grabbing device for installing the contact network suspension string of the present invention: a displacement sensor for detecting the displacement of the moving plate is fixedly connected to the limit plate.

[0012] This is a further optimization of the load-bearing cable eye grabbing device for installing the contact network suspension string of the present invention: the locking plate is rotatably connected to the base plate, and a locking hook is fixedly connected to the locking plate for hooking the movable plate to lock the position of the movable 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 locking plate.

[0013] This is a further optimization of the load-bearing cable eye grabbing device for installing the contact network suspension string of the present invention: a second limit block is connected to the locking plate, and the second limit block cooperates with the bottom plate to limit the locking plate.

[0014] Beneficial effects:

[0015] 1) The present invention provides a device for grabbing a catenary cable eye for installing a catenary string. The device grabs the catenary cable eye and pushes the eye to a designated position via a feeding mechanism, completing intelligent installation of the catenary string. This replaces manual installation, ensures the safety of the installation workers, and greatly improves installation efficiency and accuracy.

[0016] 2) In the present invention, the clamping mechanism includes a fixed clamping block and a movable clamping block, and the movable clamping block is pulled toward the fixed clamping block by a tension spring, thereby facilitating the entry or withdrawal of the lifting ring into or out of the clamping space and simultaneously being able to clamp the lifting ring;

[0017] 3) In the present invention, a second limit block is fixedly connected to the locking plate to limit the position of the locking plate, thereby preventing the locking plate from excessively rotating and ensuring that the locking plate locks the movable plate;

[0018] 4) In the present invention, the driving spring, locking spring and tension spring are all detachable and easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure on the left side of the grabbing device;

[0020] Figure 2 It is a schematic diagram of the structure on the right side of the grabbing device;

[0021] Figure 3 It is the main view of the gripping device;

[0022] Figure 4 It is a structural diagram during the movement of the lifting ring;

[0023] Figure 5 It is a structural diagram of the gripping device in a locked state;

[0024] Figure 6 is a schematic diagram of the clamping mechanism;

[0025] Figure 7 It is a structural diagram of the locking plate;

[0026] Description of the drawings: 1. First slide rail, 2. First slider, 3. Moving block, 4. First fixed axis, 5. Moving clamp, 6. Clamping space, 7. Lifting ring, 8. Fixed clamp, 9. Fixed block, 10. Tension spring, 11. Second slide rail, 12. Protrusion, 13. Locking plate, 14. Second limit block, 15. Handle, 16. Locking spring, 17. Connecting piece, 18. Bottom plate, 19. Limiting plate, 20. Displacement sensor, 21. Push rod, 22. First limit block, 23. Second slider, 24. Locking block, 25. Moving plate, 26. Second connecting plate, 27. Locking hook, 28. First through hole, 29. Limiting pin, 30. Fixing bolt, 31. Driving spring. DETAILED DESCRIPTION

[0027] 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.

[0028] A catenary cable eye grabbing device for installing catenary string Figure 1 As shown, it includes a clamping mechanism, a locking mechanism and a feeding mechanism; the clamping mechanism includes a fixed clamping block 8, a movable clamping block 5 and a plurality of elastic members that can pull the movable clamping block 5 toward the fixed clamping block 8. A clamping space 6 that can accommodate a hanging ring 7 is formed between the fixed clamping block 8 and the movable clamping block 5. If the fixed clamping block 8 and the movable clamping block 5 are connected as a whole, the hanging ring 7 is not easy to enter the clamping space 6, and after the hanging ring 7 enters the clamping space 6, it is easy to shake and difficult to clamp, affecting the installation of the hanging string. In this embodiment, the movable clamping block 5 is above the fixed clamping block 8 and can move up and down, as shown in FIG. Figure 3 As shown, the lifting ring 7 is U-shaped, and the clamping mechanism clamps the arcuate portion of the lifting ring 7. The outer surface of the arcuate portion has a groove, and the fixed clamping block 8 and the movable clamping block 5 are clamped in the groove of the arcuate portion of the lifting ring 7. The upper surface of the fixed clamping block 8 and the lower surface of the movable clamping block 5 are both arcuate, and a clamping space 6 that can accommodate the arcuate portion of the lifting ring 7 is formed therebetween. The width of the fixed clamping block 8 and the movable clamping block 5 is smaller than the width of the arcuate portion of the lifting ring 7. When the lifting ring 7 enters the clamping space 6, the lifting ring 7 pushes the movable clamping block 5 to move upward, making it easier for the lifting ring 7 to enter the clamping space 6; after the lifting ring 7 enters the clamping space 6, the elastic member pulls the movable clamping block 5 toward the fixed clamping block 8, thereby clamping the lifting ring 7.

[0029] The locking mechanism includes a rotatable locking plate 13, which is connected to or separated from the fixed clamping block 8 during the rotation process. When the locking plate 13 is connected to the fixed clamping block 8, the position of the clamping mechanism is locked. When the hanging string is installed, the clamping mechanism is pushed to make the hanging ring 7 reach the specified position before installation. During the movement of the clamping mechanism, the driving spring 31 is stretched and exerts a reverse pulling force on the clamping mechanism. Therefore, during the installation of the hanging ring 7, the clamping mechanism needs to be locked to prevent the clamping mechanism from moving in the opposite direction, which facilitates installation. After the installation of the hanging ring 7 is completed, the locking plate 13 is moved to release the locking state of the clamping mechanism. The feeding mechanism is used to drive the clamping mechanism to move when the locking plate 13 is separated from the fixed clamping block 8. Before the hanging ring 7 is installed, the clamping mechanism is pushed to move so that the hanging ring 7 reaches the installation position. After the installation of the hanging ring 7 is completed, the clamping mechanism is reset by the return elastic force of the driving spring 31.

[0030] A limiting assembly capable of limiting the position of the movable clamping block 5 is provided between the fixed clamping block 8 and the movable clamping block 5. In this embodiment, Figure 6As shown, both the fixed clamping block 8 and the movable clamping block 5 are connected with a limit pin 29, and the two limit pins 29 are provided in correspondence. The fixed clamping block 8 is fixedly connected to the fixed block 9, and the connection method of the two can be welding, bolt connection or integral connection; the movable clamping block 5 is fixedly connected to the movable block 3, and the connection method of the two can be welding, bolt connection or integral connection; in this embodiment, the connection method of the fixed clamping block 8 and the fixed block 9 as well as the connection method of the movable clamping block 5 and the movable block 3 are all integral connection. Both the movable block 3 and the fixed block 9 are provided with vertical through holes, and the two vertical through holes are provided in correspondence. A limit pin 29 is provided in the vertical through hole of the movable block 3, and the limit pin 29 is interference fit with the vertical through hole and extends a part downward; a limit pin 29 is also provided in the vertical through hole of the fixed block 9, and the limit pin 29 is interference fit with the vertical through hole and extends a part upward. When the lifting ring 7 is installed, the lifting ring 7 is pulled out of the clamping space 6. At this time, due to the tension of the tension spring 10, the movable clamp 5 moves downward, and the upper and lower limit pins 29 contact to limit the movable clamp 5, preventing the movable clamp 5 from moving downward too far, causing the clamping space 6 to be excessively reduced, affecting the installation of the next lifting ring 7 into the clamping space 6.

[0031] like Figure 2 As shown, the elastic member includes a tension spring 10, and the two ends of the tension spring 10 are detachably arranged on the fixed clamping block 8 and the movable clamping block 5 respectively. The number of tension springs 10 can be 1-2. In this embodiment, the number of tension springs 10 is selected as 2, and the two tension springs 10 are located on both sides of the fixed clamping block 8; a first fixed shaft 4 is fixedly connected to the movable block 3 and the fixed block 9, and the two ends of the tension spring 10 are detachably connected to the two first fixed shafts 4 respectively. Since the tension spring 10 is always in a stretched state, it is prone to wear and tear and needs to be replaced regularly. The detachable connection of the tension spring 10 facilitates replacement.

[0032] The clamping mechanism is further defined as follows: the clamping mechanism includes a second connecting plate 26 fixedly connected to the fixed clamping block 8, and the second connecting plate 26 is slidably connected to the movable clamping block 5. In this embodiment, the fixed clamping block 8 is integrally connected to the fixed block 9, and the fixed block 9 is fixedly connected to the movable plate 25, and the connection method of the two is bolted; the second connecting plate 26 is fixedly connected to the movable plate 25 and is arranged perpendicular to the movable plate 25. The connection method of the two can be welding, bolt connection or integral connection. In this embodiment, the connection method of the two is bolted. Among them, the first slide rail 1 is fixedly connected to the second connecting plate 26, and the first slide rail 1 is slidably provided with a first slider 2. The connection method of the first slide rail 1 and the second connecting plate 26 is bolted, and the first slide rail 1 is arranged perpendicular to the movable plate 25; the first slider 2 is fixedly connected to the movable clamping block 5, and the connection method of the first slider 2 and the movable clamping block is bolted. When the lifting ring 7 is installed into the clamping space 6 or pulled out of the clamping space 6, the lifting ring 7 pushes the movable clamping block 5 and then pushes the first slider 2 to move along the first slide rail 1.

[0033] The feeding mechanism is further defined as follows: the feeding mechanism includes a base plate 18, a movable plate 25 slidably connected to the base plate 18, and a driving spring 31 for pulling the movable plate 25, wherein the movable plate 25 is fixedly connected to the second connecting plate 26, the base plate 18 is fixedly connected to the second slide rail 11, and the two are connected by bolts, and a second slider 23 fixedly connected to the movable plate 25 is slidably provided on the second slide rail 11, and the movable plate 25 is connected to the second slider 23 by bolts, and the two ends of the driving spring 31 are detachably provided on the base plate 18 and the movable plate 25, respectively. Figure 3 As shown, the left end of the bottom plate 18 is fixedly connected to the limit plate 19, and the limit plate 19 is arranged vertically with the bottom plate 18; Figure 2 As shown, a fixed shaft is fixedly connected to the movable plate 25, a mounting hole is provided on the limit plate 19, one end of the driving spring 31 is detachably connected to the fixed shaft, and a baffle is provided on the fixed shaft to limit the end of the driving spring 31 on the fixed shaft to prevent it from falling; the other end of the driving spring 31 is suspended on the mounting hole.

[0034] A limit plate 19 capable of limiting the position of the movable plate 25 is fixedly connected to the bottom plate 18, and a push rod 21 fixedly connected to the movable plate 25 is slidably provided on the limit plate 19. In this embodiment, the limit plate 19 is an L-shaped plate, which is fixedly connected to the bottom plate 18 by bolts. The left end of the movable plate 25 is vertically fixedly connected to the limit portion, and the push rod 21 is fixedly connected to the limit portion of the movable plate 25 by a locking nut. The push rod 21 is arranged parallel to the bottom plate 18, and a through hole is opened on the limit plate 19. The diameter of the through hole is larger than the diameter of the push rod 21, which facilitates the sliding of the push rod 21 in the through hole. A first limit block 22 is provided at one end of the push rod 21 passing through the limit plate 19. In this embodiment, the first limit block 22 is a cylinder coaxially arranged with the push rod 21, and the diameter of the cylinder is larger than the diameter of the through hole on the limit plate 19. When the lifting ring 7 is installed, a thrust is applied to the push rod 21, so that the push rod 21 pushes the clamping mechanism to move forward, thereby allowing the lifting ring 7 to reach the specified position for installation.

[0035] The limiting plate is further defined as follows: a displacement sensor 20 is fixedly connected to the limiting plate 19 and is used to detect the displacement of the moving plate 25 , thereby detecting the displacement of the lifting ring 7 .

[0036] The locking plate 13 is further defined as follows: Figure 4As shown, the locking plate 13 is rotatably connected to the base plate 18, and a rotating shaft is fixedly connected to the base plate 18. The locking plate 13 is rotatably connected to the rotating shaft. A locking hook 27 is fixedly connected to the locking plate 13 for hooking the movable plate 25 to lock the position of the movable plate 25. The locking plate 13 is fixedly connected to a handle 15 below the locking hook 27 for easy movement of the locking plate 13. The locking plate 13 is also connected to a handle for keeping the locking plate 13 in position after the locking hook 27 hooks the locking plate 13. The locking spring 16 is in the set state, and a locking block 24 for cooperating with the locking hook 27 is fixedly connected to the movable plate 25, and the bottom end of the locking block 24 is an inclined surface; the right end of the locking plate 13 is fixedly connected to a downward protrusion 12, and a connecting piece 17 is fixedly connected to the bottom of the bottom plate 18. The bottom of the protrusion 12 and the bottom of the connecting piece 17 are both fixedly connected to the second fixed shaft, and the two ends of the locking spring 16 are detachably arranged on the second fixed shaft, and the locking spring 16 is always in a stretched state. When the movable plate 25 moves from left to right, the inclined surface at the bottom end of the locking block 24 contacts the locking plate 13, and the movable plate 25 continues to move. The locking block 24 pushes the locking plate 13 to rotate counterclockwise around the rotation axis. At this time, the locking spring 16 is stretched. When the locking block 24 passes over the locking hook 27, the locking plate 13 is pulled clockwise by the restoring elastic force of the locking spring 16. Finally, the locking hook 27 contacts the left side of the locking block 24 to lock the movable plate 25.

[0037] The locking plate 13 is further defined as follows: Figure 7 As shown, the bottom end of the locking plate 13 is fixedly connected to a second limiting block 14, and the two are connected by bolt connection, welding, or integral connection. In this embodiment, the second limiting block 14 is connected to the locking plate 13 by bolt connection, that is, fixedly connected by a fixing bolt 30. The upper surface of the second limiting block 14 contacts the lower surface of the bottom plate 18 to limit the locking plate 13. When the locking block 24 and the locking hook 27 are unlocked, the locking spring 16 pulls the locking plate 13 to rotate counterclockwise. When the locking plate 13 rotates excessively and the locking block 24 moves from left to right, it pushes the locking plate 13 to rotate clockwise, making it impossible to lock the locking block 24. Therefore, the provision of the second limiting block 14 limits the locking plate 13, ensuring that the locking plate 13 rotates counterclockwise when the locking block 24 moves from left to right.

[0038] 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 eye grabbing device for installing a catenary string, characterized by: It includes a clamping mechanism, a locking mechanism and a feeding mechanism; The clamping mechanism comprises a fixed clamping block (8), a movable clamping block (5) and a plurality of elastic members capable of pulling the movable clamping block (5) toward the fixed clamping block (8); a clamping space (6) capable of accommodating a lifting ring (7) is formed between the fixed clamping block (8) and the movable clamping block (5); The fixed clamping block (8) and the movable clamping block (5) are both connected with a limit pin (29), and the two limit pins (29) contact to limit the movable clamping block (5); The locking mechanism comprises a rotatable locking plate (13), which is connected to or separated from the fixed clamping block (8) during rotation, and locks the position of the clamping mechanism when the locking plate (13) is connected to the fixed clamping block (8); The locking plate (13) is fixedly connected to a locking hook (27) for hooking a movable plate (25) connected to the clamping mechanism to lock the position of the movable plate (25); the locking plate (13) is also connected to a locking spring (16) for maintaining the position of the locking plate (13) after the locking hook (27) hooks the movable plate (25); The locking plate (13) is fixedly connected to a handle (15) below the locking hook (27); The feeding mechanism is used to drive the clamping mechanism to move when the locking plate (13) is separated from the fixed clamping block (8), and the feeding mechanism includes a base plate (18) slidably connected to the movable plate (25) and a driving spring (31) for driving the movable plate (25) to return. The locking plate (13) is rotatably connected to the base plate (18); The movable plate (25) is fixedly connected with a locking block (24) for cooperating with the locking hook (27). The movable plate (25) drives the locking block (24) to move synchronously. The locking block (24) can contact the locking plate (13) during the movement. As the locking block (24) continues to move, it pushes the locking plate (13) to rotate and stops moving after passing the locking hook (27). After the locking block (24) passes the locking hook (27), the locking plate (13) is pulled back to its original position by the locking spring (16), so that the locking hook (27) contacts the locking block (24) for locking.

2. A catenary cable eye grabbing device for installing a catenary dropper string according to claim 1, characterized in that: A limiting component capable of limiting the position of the movable clamping block (5) is provided between the fixed clamping block (8) and the movable clamping block (5).

3. A catenary cable eye grabbing device for installing a catenary dropper string according to claim 2, characterized in that: The limiting assembly comprises two limiting pins (29) respectively fixedly connected to the movable clamping block (5) and the fixed clamping block (8), and the two limiting pins (29) are correspondingly arranged.

4. The catenary cable eye grabbing device for installing a catenary dropper string according to claim 1, characterized in that: The elastic member comprises a tension spring (10), both ends of which are detachably arranged on the fixed clamping block (8) and the movable clamping block (5).

5. The catenary cable eye grabbing device for installing a catenary dropper string according to claim 1, characterized in that: The clamping mechanism further comprises a second connecting plate (26) fixedly connected to the fixed clamping block (8); a first slide rail (1) is fixedly connected to the second connecting plate (26); a first slider (2) is slidably provided on the first slide rail (1); and the first slider (2) is fixedly connected to the movable clamping block (5).

6. A catenary cable eye grabbing device for installing a catenary dropper string according to claim 5, characterized in that: The movable plate (25) is fixedly connected to the second connecting plate (26); a second slide rail (11) is fixedly connected to the bottom plate (18); a second slider (23) fixedly connected to the movable plate (25) is slidably provided on the second slide rail (11); and two ends of the driving spring (31) are detachably provided on the bottom plate (18) and the movable plate (25), respectively.

7. A catenary cable eye grabbing device for installing a catenary dropper string according to claim 6, characterized in that: A limiting plate (19) capable of limiting the position of the movable plate (25) is fixedly connected to the bottom plate (18), and a push rod (21) fixedly connected to the movable plate (25) is slidably provided on the limiting plate (19).

8. The catenary cable eye grabbing device for installing a catenary dropper string according to claim 7, characterized in that: A displacement sensor (20) for detecting the displacement of the moving plate (25) is fixedly connected to the limiting plate (19).

9. The catenary cable eye grabbing device for installing a catenary dropper string according to claim 7, characterized in that: The locking plate (13) is connected to a second limiting block (14), and the second limiting block (14) cooperates with the bottom plate (18) to limit the locking plate (13).

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