A quick-release feeding device for installing contact network droppers

Abstract

A quick-release feeding device for installing catenary suspension strings comprises a rectangular fixed frame and a feeding frame slidably mounted on the fixed frame; the fixed frame is provided with a plurality of universal ball bearings and a plurality of rollers distributed vertically along its width, the universal ball bearings providing rolling engagement with the bottom of the feeding frame, and the rollers providing rolling engagement with the sides of the feeding frame; a first cylinder for pulling the feeding frame to slide is provided along its length; a second cylinder for pushing the feeding frame into contact with the rollers on the other side of the fixed frame is provided on one side of the fixed frame; and two rows of vertically distributed load bars are provided along its length, wherein two adjacent load bars in one row are connected to trays on two corresponding adjacent load bars in the other row. The present invention can accurately position workpieces, reduce workers' workload, and improve the efficiency of catenary suspension string installation.

Description

Technical Field

[0001] The invention relates to the technical field of contact network dropper string installation equipment, in particular to a quick-detachable feeding device for contact network dropper string installation. Background Art

[0002] The catenary is a specialized transmission line erected above railway lines to supply power to electric locomotives. During catenary string installation, workers assemble string components into workpieces and place them on a frame. The frame, along with the workpieces, is then aligned and mounted on a workbench. The frame rises with the workbench to a position close to the string installation location. The string installation equipment then grabs the workpiece from the frame and begins installing the string. However, existing technologies present the following challenges:

[0003] In the prior art, workers must lift the frame holding the workpiece and align it with the workbench for snap-fit installation. To maintain the stability of the frame's overall positioning, the workbench's snap-fitting area is small. This requires a significant amount of time for workers to align the frame's snap-fitting area with the snap-fitting area on the workbench. This long alignment and snap-fitting process increases worker workload and the time it takes for the workpiece to be used for overhead wire installation.

[0004] In the prior art, workers place assembled workpieces onto a frame. When the frame engages with the workbench, the workpieces shift. These shifted workpieces cannot be picked up by the gripper, which is set at a fixed position, for installation of the catenary string. Furthermore, these shifted workpieces require workers to straighten them before they can be grabbed by the gripper for installation. This increases the time it takes the gripper to grab the workpiece, which in turn increases the time it takes for the workpiece to be installed, reducing installation efficiency. Summary of the Invention

[0005] The present invention aims to provide a quick-detachable feeding device for installing a contact network dropper string, which can accurately position a workpiece, reduce the work intensity of workers, and greatly improve the installation efficiency of the contact network dropper string.

[0006] In order to solve the above technical problems, the specific solution adopted by the present invention is a quick-detachable feeding device for installing a catenary dropper string: comprising a rectangular fixed frame and a feeding frame slidably arranged on the fixed frame;

[0007] The fixed frame is provided with a plurality of universal ball bearings along the width direction of the fixed frame and a plurality of rollers distributed vertically. The universal ball bearings provide rolling cooperation for the bottom of the feed frame, and the rollers provide rolling cooperation for the sides of the feed frame. The fixed frame is provided with a first cylinder along the length direction of the fixed frame for pulling the feed frame to slide. A second cylinder is provided on one side of the fixed frame for pushing the feed frame to contact with the rollers on the other side of the fixed frame.

[0008] Two rows of vertically distributed load-bearing rods are provided on the feeding frame along the length direction of the feeding frame, and two adjacent load-bearing rods on one row are connected to two adjacent load-bearing rods on the other row, and the shape of the tray is I-shaped; gourd holes for engaging with the load-bearing rods are provided on the tray, and the gourd holes are respectively arranged at the four corners of the tray and distributed in the same direction; a fixed ring platform for carrying the pallet is provided on the load-bearing rod, and a cylindrical support column is provided on the fixed ring platform, and a conical guide head is connected to the support column; the guide head is for the large circle of the gourd hole to pass through, and the support column is for the small circle of the gourd hole to engage with.

[0009] As a further optimization of the quick-detachable feeding device for installing the contact network suspension string of the present invention: bearings with seats are respectively provided on the feeding frame along the width direction of the feeding frame, and a rotating shaft is provided in the bearings with seats. The end of the rotating shaft facing the bearing rod is provided with a swing plate distributed vertically, and two bearing plates are provided between the two swing plates, and the bearing rod is arranged on the bearing plate.

[0010] As a further optimization of the quick-detachable feeding device for installing the contact network suspension string of the present invention: circular holes are evenly spaced on the swing plate, and a first pin distributed horizontally is provided on the feeding frame. The first pin cooperates with the circular hole to position the swing angle of the bearing rod.

[0011] As a further optimization of the quick-release feeding device for installing catenary droppers of the present invention, L-shaped baffles are provided on the feed frame along its width and on the fixed frame along its length. The two L-shaped baffles engage with each other to prevent the feed frame from separating from the fixed frame. Corresponding strip-shaped holes are provided on the fixed frame and the feed frame, as well as on one side where the two baffles engage with each other. A second latch is mounted in the strip-shaped hole.

[0012] As a further optimization of the quick-detachable feeding device for installing the contact network suspension string of the present invention: two feeding frames are provided on the fixed frame along the width direction of the fixed frame.

[0013] Beneficial effects

[0014] The present invention discloses a quick-release feeding device for installing catenary droppers, comprising a fixed frame and a feeding frame slidably mounted on the fixed frame. The fixed frame is equipped with multiple universal ball bearings and rollers. A worker lifts the frame, which holds a workpiece, and slides it along the fixed frame. A cylinder mounted on the fixed frame then pushes the feeding frame into a fixed position where a gripper can grasp the workpiece. This saves the worker the time and effort of aligning the frame with the workbench, reducing their workload.

[0015] The feed frame of the present invention is provided with a carrying rod, and the carrying rod is provided with a tray for carrying the workpiece. The four corners of the tray are provided with gourd holes for engaging with the carrying rod. The worker places the workpiece on the tray and then passes the four corners of the tray through the corresponding carrying rod. The workpiece is connected to the carrying rod by the tray to keep the workpiece stable on the feed frame. The workpiece placed on the carrying rod will not shift to the position where the gripper can pick up the workpiece. The accurate positioning of the workpiece on the carrying rod avoids the problem of the gripper being unable to grab the workpiece, increases the time the workpiece is used for the installation of the contact network suspension string, and improves the installation efficiency of the contact network suspension string.

[0016] In a preferred embodiment of the present invention, a rotatable swing plate is provided on the feed frame, and a supporting plate for supporting the supporting rod is provided between the swing plates. The circular hole on the swing plate cooperates with the latch to tilt the workpiece at a certain angle, thereby increasing the convenience of the gripper in grasping the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a structural diagram of part A in the figure;

[0019] Figure 3 Schematic diagram of the three-dimensional structure of the fixed frame in the present invention;

[0020] Figure 4 Schematic diagram of the three-dimensional structure of the feeding frame in the present invention;

[0021] Figure 5 This is a schematic diagram of the main structure of the tray in the present invention;

[0022] Figure 6 This is a schematic diagram of the main structure of the bearing rod in the present invention;

[0023] Figure markings: 1. Fixed frame, 2. Universal ball bearing, 3. Feed frame, 4. Fixed long plate, 5. Roller, 6. Fixed plate group, 7. Baffle, 8. Second latch, 9. First latch, 10. Swing plate, 11. Bearing with seat, 12. Load-bearing rod, 1201. Guide head, 1202. Fixed ring platform, 1203. Guide shaft, 1204. Fixed seat, 13. Load-bearing plate, 14. First cylinder, 15. Strip hole, 16. Second cylinder, 17. Pallet, 18. Gourd hole, 19. Support rod, 20. Grid bracket. DETAILED DESCRIPTION

[0024] like Figure 1 and Figure 3 As shown, the present invention provides a quick-detachable feeding device for the installation of a contact network suspension string, comprising a fixed frame 1 and two feeding frames 3 slidably arranged on the fixed frame 1. The fixed frame 1 is rectangular in shape, and the fixed frame 1 consists of an upper and lower frame and a support rod 19 vertically distributed between the two frames. The two-layer frame is provided with a partition bracket 20, and the partition bracket 20 is respectively distributed in the horizontal and vertical directions on the two layers of rectangular frames to divide the fixed frame 1 into spaces for placing different contact network suspension string installation equipment. The left and right sides of the fixed frame 1 are respectively used to place the feeding frames 3, and the other spaces of the fixed frame 1 are used to place other equipment for the installation of the contact network suspension string, such as grippers.

[0025] like Figure 2 and Figure 3 As shown, four rows of universal ball bearings 2 are arranged along the width of the fixed frame 1 for the two feed frames 3 to slide on the fixed frame 1. Each row is composed of multiple universal ball bearings 2. The four rows of universal ball bearings 2 are fixedly mounted on the grid brackets 20 distributed along the longitudinal direction of the fixed frame 1. The four rows of universal ball bearings 2 are arranged in pairs on the left and right sides of the fixed frame 1. Two rows of universal ball bearings 2 are arranged as a group on the left side of the fixed frame 1 for the feed frame 3 arranged on the left side of the fixed frame 1 to slide on the fixed frame 1. The other two rows of universal ball bearings 2 are arranged as a group on the right side of the fixed frame 1 for the feed frame 3 arranged on the right side of the fixed frame 1 to slide on the fixed frame 1.

[0026] like Figure 1 and Figure 3As shown, the fixed frame 1 is further provided with four vertically distributed fixed long plates 4 along the width direction of the fixed frame 1. The four fixed long plates 4 are respectively arranged on the outside of the four rows of universal ball bearings 2 arranged along the width direction of the fixed frame 1. The four fixed long plates 4 are each provided with a plurality of vertically distributed rollers 5 along the length direction of the fixed long plates 4. The rollers 5 are used to roll with the side of the feeding frame 3 slidably arranged on the fixed frame 1. The fixed long plates 4 are provided with an L-shaped fixed plate group 6 along the length direction of the fixed long plates 4 for fixing the rollers 5 on the fixed long plates 4. The fixed plate group 6 includes two relatively distributed L-shaped fixed plate groups 6. The two fixed plates are distributed from top to bottom on the fixed long plates 4. One end of the fixed plate is respectively fixed to the fixed long plate 4, and the other end is respectively fixedly connected to the upper and lower ends of the vertically distributed rollers 5. Two second cylinders 16 are evenly spaced along the length direction of the fixed long plate 4 on the outer side of the fixed long plate 4 on the left side of the fixed frame 1. The second cylinders 16 are used to push the feeding frame 3 to contact the roller 5 on the opposite right fixed long plate 4.

[0027] like Figure 3 As shown, two first cylinders 14 are horizontally distributed along the length of the fixed frame 1. The first cylinders 14 are used to pull the corresponding feed frame 3 to a position close to the first cylinders 14. The first cylinders 14 are arranged on the fixed frame 1 between the rear ends of the two rows of universal ball bearings 2. One end of the first cylinder 14 is fixed to the fixed frame 1, and the piston rod at the other end is provided with a connecting rod for fixed connection to the feed frame 3. A baffle 7 is provided on the fixed frame 1 corresponding to the first cylinder 14 to prevent the feed frame 3 from being lifted when the gripper grasps the workpiece. The baffle 7 is fixed to the fixed frame 1 along one side of the vertical distribution and is arranged toward the feed frame 3 along the other side of the horizontal distribution.

[0028] The fixed frame 1 has strip holes 15 located between the front ends of the two rows of universal ball bearings 2 and on the corresponding feed frame 3. A second latch 8 is mounted within the strip holes 15 to prevent the feed frame 3 from sliding out along the width of the fixed frame 1. The provision of the strip holes 15 enables the feed frame 3, with the second latch 8 mounted thereon, to move from left to right on the fixed frame 1. L-shaped baffles 7 are positioned opposite each other on the feed frame 3 and the fixed frame 1, with one side of the two L-shaped baffles 7 positioned between the feed frame 3 and the fixed frame 1. One side of the two baffles 7 engages with each other to prevent the feed frame 3 from being lifted off the fixed frame 1 when the gripper grasps the workpiece. Strip holes 15 for the second latch 8 to pass through are also located on both sides of the two baffles 7 that engage with each other between the fixed frame 1 and the feed frame 3.

[0029] like Figure 1As shown, two feeding frames 3 are respectively slidably arranged on the left and right sides of the fixed frame 1 along the width direction of the fixed frame 1. The feeding frames 3 are rectangular in shape, and the long sides of the rectangular feeding frames 3 slide on the wide sides of the fixed frame 1. Figure 4 As shown, the feed frame 3 is provided with seat bearings 11 along the width direction of the feed frame 3. The seat bearings 11 are connected to the vertically distributed swing plates 10 in the direction of the bearing rods 12. The two swing plates 10 are provided with slots on both sides. The corresponding slots are provided with bearing plates 13. The two bearing plates 13 are provided along the length direction of the feed frame 3. Each bearing plate 13 carries a row of bearing rods 12, and each row of bearing rods 12 is provided accordingly. Figure 5 As shown, two adjacent load-bearing rods 12 in one row and two corresponding adjacent load-bearing rods 12 in another row are connected to a detachable I-shaped tray 17. The four corners of the tray 17 are provided with gourd holes 18 for engaging with the load-bearing rods 12. The gourd holes 18 are composed of a combination of large and small circles, and the small circles at the four corners of the tray 17 are all oriented in the same direction.

[0030] like Figure 6 As shown, the lower end of the supporting rod 12 is provided with a fixing seat 1204 for fixing the supporting rod 12 on the feeding frame 3. A guide shaft 1203 distributed vertically is provided in the fixing seat 1204. One end of the guide shaft 1203 is fixed in the fixing seat 1204. The other end of the guide shaft 1203 is provided with a fixing ring platform 1202 for supporting the tray 17 and preventing the tray 17 from falling. A cylindrical support column is provided along the center of the fixing ring platform 1202 for the small circle of the gourd hole 18 to engage with. One end of the support column is fixed to the fixing ring platform 1202, and the other end of the support column is connected to a conical guide head 1201 for the large circle of the gourd hole 18 to pass through.

[0031] The specific embodiment of the present invention is as follows: A worker places the assembled workpiece on a pallet 17. The worker then holds the pallet 17 with the workpiece above the carrier rods 12 on the feed frame 3. The pallet 17 is lowered so that the guide heads 1201 at the upper ends of the carrier rods 12 pass through the corresponding large circular holes 18 on the pallet 17. At this point, the pallet 17 rests on the fixed ring platform 1202 of the carrier rods 12. The worker then manually pushes the pallet 17, causing the small circular holes 18 on the pallet 17 to engage with the support columns positioned between the fixed ring platform 1202 and the guide heads 1201. This cycle continues until all the carrier rods 12 on the feed frame 3 are secured with workpieces.

[0032] After the supporting rods 12 on the feed frame 3 are all clamped with workpieces, workers lift the feed frame 3 to the ends on the left and right sides of the fixed frame 1 respectively. Under the rolling action of the universal ball bearings 2 and the rollers 5 provided on the fixed frame 1, the workers effortlessly push the feed frame 3 so that the feed frame 3 slides completely onto the fixed frame 1. At this time, the connecting rod on the first cylinder 14 provided on the fixed frame 1 rotates from being distributed in the horizontal direction to being distributed in the vertical direction, so that one end of the feed frame 3 is located between the connecting rod and the fixed frame 1. The piston rod of the first cylinder 14 contracts, driving the connecting rod to pull the feed frame 3 close to the first cylinder 14, so that the feed frame 3 that has deviated on the fixed frame 1 is straightened. The second latch 8 is inserted into the strip holes 15 provided on the fixed frame 1 and the feed frame 3, so that the feed frame 3 slides along the width direction of the fixed frame 1. The piston rod of the second cylinder 16, located on the left fixed long plate 4, then extends to push the feed frame 3 to a position close to the right fixed long plate 4. The swing plate 10, which is rotatably mounted on the feed frame 3, cooperates with the first latch 9 to rotate the support rod 12 with the workpiece to an angle for the gripper to grasp the workpiece. Under the action of the first cylinder 14, the second cylinder 16, and the swing plate 10, the feed frame 3 is positioned at the upper right corner of the fixed frame 1, achieving accurate positioning for the gripper to grasp the workpiece. The baffle 7, which is mutually engaged between the fixed frame 1 and the feed frame 3, and the baffle 7 in the relative position on the fixed frame 1, prevent the gripper from lifting the feed frame 3 and causing it to move when grasping the workpiece.

[0033] When all the workpieces on feed frame 3 have been used, a worker removes the second latch 8 between fixed frame 1 and feed frame 3. First cylinder 14 on fixed frame 1 then rotates the connecting rod from vertical to horizontal. The worker then pulls feed frame 3 out and removes it, then places the workpieces back on feed frame 3. This cycle repeats, placing the workpieces on feed frame 3 for the gripper to grab and use for catenary wire installation.

Claims

1. A quick-release feeding device for installing a catenary dropper, characterized in that: It comprises a rectangular fixed frame (1) and a feeding frame (3) slidably arranged on the fixed frame (1); A plurality of universal ball bearings (2) and a plurality of rollers (5) distributed vertically are provided on the fixed frame (1) along the width direction of the fixed frame (1); the universal ball bearings (2) are in rolling cooperation with the bottom of the feeding frame (3), and the rollers (5) are in rolling cooperation with the side of the feeding frame (3); a first cylinder (14) for pulling the feeding frame (3) to slide is provided on the fixed frame (1) along the length direction of the fixed frame (1); a second cylinder (16) for pushing the feeding frame (3) to contact the rollers (5) on the other side of the fixed frame (1) is provided on one side of the fixed frame (1); Two rows of vertically distributed carrying rods (12) are provided on the feeding frame (3) along the length direction of the feeding frame (3), wherein two adjacent carrying rods (12) on one row and two adjacent carrying rods (12) correspondingly arranged on the other row are connected with a tray (17), and the shape of the tray (17) is an I-shape; gourd holes (18) for engaging with the carrying rods (12) are provided on the tray (17), and the gourd holes (18) are respectively arranged at the four corner positions of the tray (17) and distributed in the same direction; a fixed ring platform (1202) for supporting the tray (17) is provided on the carrying rod (12), and a cylindrical support column is provided on the fixed ring platform (1202), and a conical guide head (1201) is connected to the support column; the large circle of the gourd hole (18) passes through the guide head (1201), and the small circle of the gourd hole (18) is engaged with the support column; The feeding frame (3) is provided with seat bearings (11) along the width direction of the feeding frame (3), and a rotating shaft is provided in each seat bearing (11). One end of the rotating shaft facing the bearing rod is provided with a swing plate (10) distributed vertically, and two bearing plates (13) are provided between the two swing plates (10), and the bearing rod (12) is provided on the bearing plate (13); Circular holes are evenly spaced apart on the swing plate (10), and first latches (9) are horizontally distributed on the feeding frame (3). The first latches (9) cooperate with the circular holes to position the swing angle of the bearing rod (12); L-shaped baffles (7) are provided on the feed frame (3) along the width direction of the feed frame (3) and on the fixed frame (1) along the length direction of the fixed frame (1). The two L-shaped baffles (7) are mutually engaged and used to prevent the feed frame (3) from separating from the fixed frame (1). Strip holes (15) are correspondingly provided on the fixed frame (1) and the feed frame (3) and on one side where the two baffles (7) are mutually engaged. A second latch (8) is installed in the strip hole (15).

2. A quick-release feeding device for installing a catenary dropper according to claim 1, characterized in that: Two feeding frames (3) are provided on the fixed frame (1) along the width direction of the fixed frame (1).

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