Stop mechanism for cable drum pay-off

Abstract

The application discloses a kind of cable reel unwinding device's stop mechanism, parallelly arranged horizontal chassis top one end is fixed with unwinding frame, the other end is fixed with longitudinal horizontal plate, longitudinal horizontal plate top is fixed with unwinding wire guide device, bearing seat is respectively arranged on unwinding frame, driven connecting shaft is rotated in bearing seat, the one end of driven connecting shaft is fixed with locking wheel A and is stretched out outward, locking wheel A has multiple locking grooves A, unwinding frame is equipped with locking rod A, locking rod A is connected in guide sleeve, locking rod A is moved upward by spring A, unwinding wire guide device includes the two parallel vertical plates of longitudinal horizontal plate top, wire roller A and wire roller B are sequentially arranged between vertical plate, and the drive device of locking rod A is respectively arranged in vertical plate.From the above structure, the cable reel unwinding device's stop mechanism of the application guarantees the smoothness when cable unwinds.

Description

Technical Field

[0001] This invention relates to the technical field of power cable laying and laying equipment, and more specifically to a stop mechanism for a cable reel laying device. Background Technology

[0002] Cable reels are used during power cable laying. These reels, which are mounted on a cable laying frame, rotate during cable laying. However, in current cable laying processes, the cable reel rotates due to the pulling of the cable. Even after the pulling stops, the reel continues to rotate due to its own rotational inertia. This results in excess cable being pulled out, causing it to clump together, become entangled or twisted, and loosen, leading to tangling between different turns of cable on the outermost layer of the reel. These issues hinder further laying and require manual reorganization or rewinding of excess cable back onto the reel. This increases the tediousness and labor intensity of manual laying, and reduces efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a stopping mechanism for a cable reel unloading device. By utilizing a cable unloading guide roller that operates synchronously with the unloading reel locking drive, synchronous unlocking during unloading and synchronous locking when unloading stops are achieved. This ensures smooth cable unloading and avoids situations where the unloading reel continues to rotate due to rotational inertia after the cable unloading stops, causing excess cable to clump together, become entangled and twisted, or become loose on the unloading reel, which is detrimental to subsequent unloading.

[0004] The technical solution adopted in this invention is:

[0005] The cable reel feeding device includes a stopping mechanism comprising a horizontally arranged base frame. A feeding frame is symmetrically fixed to one end of the top of the base frame, and a longitudinal horizontal plate spanning the base frame is fixed to the other end. A feeding guide device is fixed to the top center of the longitudinal horizontal plate. Bearing seats for rotatable connection between the feeding reel and the feeding frame are symmetrically arranged coaxially on the feeding frame. Driven connecting shafts are rotatably connected coaxially within each bearing seat. The ends of the driven connecting shafts facing away from the other feeding frame extend outwards from their respective feeding frames and are coaxially fixedly connected to a locking wheel A. Multiple locking grooves A are evenly distributed on the rim of the locking wheel A. A vertically movable locking rod A is located below the locking wheel A on the feeding frame. The top of the locking rod A matches the locking groove A, and the locking rod A is vertically connected to the guide of the feeding frame. Inside the guide sleeve, the bottom of the guide sleeve is driven by the elastic restoring force of a pre-loaded spring A to move the locking rod A upward. When the locking rod A moves upward along the guide sleeve to its maximum stroke, the locking rod A is inserted into the locking groove A of the locking wheel A. The wire feeding device includes two parallel vertical plates fixed to the top of the longitudinal horizontal plate and located between the wire feeding frames. The plane of the vertical plates is perpendicular to the wire feeding axis. Between the vertical plates, along the direction away from the wire feeding axis, wire roller A and wire roller B are arranged in sequence. Wire roller A is located above wire roller B. The cable fed by the wire feeding reel is wound around wire roller A from above and then around wire roller B from below. The vertical plates are symmetrically provided with limiting drive devices that drive the locking rod A to move downward. When the locking rod A moves downward along the guide sleeve to its maximum stroke, the locking rod A leaves the locking groove A.

[0006] A further improvement of the present invention is that the limiting drive device includes transmission wheels A, B, C, and D, which are symmetrically rotatably connected to the outer end face of the upright plate. Transmission wheels A, B, C, and D are driven by a transmission belt. Transmission wheel A is coaxially fixedly connected to guide roller A, and transmission wheel B is coaxially rotatably connected to guide roller B. Transmission wheel C is located below transmission wheel B on the side facing transmission wheel A, and transmission wheel D is located below transmission wheel B on the side facing away from transmission wheel A. C and the transmission wheel D are rotatably connected to the vertical plate via shaft A and shaft B, respectively. Shaft A is slidably connected to the vertical plate, and shaft B is slidably connected to the vertical plate in a direction facing or away from the transmission wheel A. Shaft A is connected to the locking rod A via a pull rope A. One end of the pull rope A is wound around the guide wheel A of the wire feeding frame from below and then connected to the locking rod A. The other end of the pull rope A is wound around the guide wheel B of the vertical plate from below and then connected to the shaft A. The vertical plate is also provided with a locking device for the transmission wheel B.

[0007] A further improvement of the present invention is that the locking device includes a transmission wheel E, a locking wheel B, and a locking rod B. The transmission wheel E is coaxially fixed with the transmission wheel A, and the locking wheel B is coaxially fixed with the transmission wheel B. The locking rod B slides back and forth on the outer end face of the upright plate via a slide bracket. The slide bracket is connected to the transmission wheel E via a pull rope B. One end of the pull rope B is fixed with an annular sleeve that matches the rim of the transmission wheel E. The annular sleeve is fitted onto the transmission wheel E. The other end of the pull rope B is fixedly connected to the slide bracket. The slide bracket, located at the end opposite to the pull rope B, is also connected to the upright plate via a spring B with pre-tension. The direction of the force of the spring B is opposite to that of the slide bracket. The moving directions are parallel. The pull rope B pulls the carriage against the force of the spring B. The transmission wheel E is located between the transmission wheel A and the upright plate, the locking wheel B is located between the transmission wheel B and the upright plate, the carriage is located between the locking wheel B and the upright plate, and the locking rod B is fixed to the side of the carriage facing away from the upright plate. The rim of the locking wheel B has multiple locking grooves B evenly distributed. The end of the locking rod B facing the locking wheel B matches the locking groove B. When the locking rod B moves to the maximum stroke position facing the locking wheel B, the locking rod B is inserted into the locking groove B; when the locking rod B moves to the maximum stroke position facing away from the locking wheel B, the locking rod B leaves the locking groove B.

[0008] A further improvement of the present invention is that a strip hole A is provided on the upright plate corresponding to the position of the central rod A, and the central rod A reciprocates along the strip hole A; a strip hole B is provided on the upright plate corresponding to the position of the central rod B, and the central rod B reciprocates along the strip hole B.

[0009] A further improvement of the present invention is that the guide roller A, the transmission wheel A and the transmission wheel E are coaxially fixedly connected to the rotating shaft A, and the guide roller B, the transmission wheel B and the locking wheel B are coaxially rotatably connected to the rotating shaft B.

[0010] A further improvement of the present invention is that the two ends of the shaft A are rotatably connected to connecting sleeves, the bottom of the connecting sleeves is fixed to the pull rope A, and the shaft A passes through two parallel vertical plates.

[0011] A further improvement of the present invention is that the longitudinal horizontal plate is provided with locking bolts at the position corresponding to the horizontal base frame.

[0012] A further improvement of the present invention is that one end of the driven connecting shaft facing the other wire feeding frame extends out of the bearing seat and is detachably and coaxially fixed with a wire feeding shaft for coaxially fixing the wire feeding shaft disc, and the wire feeding disc is coaxially fixed to the wire feeding shaft.

[0013] A further improvement of the present invention is that the middle part of the pay-off shaft is a threaded rod coaxially arranged, and the two ends of the threaded rod are fixed with axial limiting flanges through threads. The pay-off reel is axially limited and fixed between the limiting flanges and is coaxially arranged with the threaded rod. The cable limiting plates at both ends of the pay-off reel are axially limited and fixed with the limiting flanges at the corresponding ends. The inner diameters of the two ends of the winding sleeve in the middle of the pay-off reel are matched and fixed with the outer diameter of the flange of the limiting flange.

[0014] A further improvement of the present invention is that the end face of the driven connecting shaft facing the wire feeding shaft is coaxially provided with a connecting groove that matches the wire feeding shaft. The side wall of the wire feeding shaft is provided with an installation notch corresponding to the position of the connecting groove. An installation cover is detachably fixed at the installation notch. Both ends of the wire feeding shaft are respectively placed in the connecting groove through the installation notch and fixed by the installation cover.

[0015] The beneficial effects of this invention are as follows:

[0016] First, the stopping mechanism of the cable reel unloading device of the present invention, by utilizing the cable unloading guide roller synchronously moving the unloading reel locking drive device, realizes synchronous unlocking and unloading when the cable unloading reel is unloading and synchronous locking when unloading stops, thereby ensuring smooth cable unloading and avoiding the situation where the unloading reel continues to rotate due to rotational inertia after the cable unloading stops, causing the unloaded excess cable to be squeezed together and become entangled and twisted, and causing the remaining cable on the unloading reel to become loose, which is not conducive to the subsequent unloading.

[0017] Secondly, the stop mechanism of the cable reel unloading device of the present invention realizes automatic unlocking when the cable is unloaded and automatic locking when the cable is stopped through the transmission structure, which is very convenient to operate.

[0018] Third, the stopping mechanism of the cable reel unloading device of the present invention has a relatively simple transmission structure. It achieves automatic locking and unlocking between the driving locking rod A and the locking wheel A by means of belt transmission between the transmission belt and the transmission wheels A, B, C and D, and by locking the transmission wheel B so that the transmission belt between the transmission wheels A, B and C and the transmission belt between the transmission wheels A, B and D respectively form a moving pulley group. It is not easy to be damaged and has a long service life.

[0019] Fourth, the stop mechanism of the cable reel feeding device of the present invention, through the connection structure between the feeding shaft and the driven connecting shaft, facilitates the quick replacement and disassembly of the feeding reel. Moreover, through the structure of the threaded rod and the limiting flange, it can not only adjust the feeding reel to the middle of the feeding frame 2, but also be applicable to different sizes of feeding reels for cables of different specifications and dimensions, thus improving the applicability of this application. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of the present invention.

[0021] Figure 2 This is a top view of the present invention.

[0022] Figure 3 This is a front enlarged schematic diagram of the wire-conducting device of the present invention.

[0023] Figure 4 This is an enlarged front sectional view of the guide sleeve of the present invention. Detailed Implementation

[0024] Combination Figures 1-4 It can be seen that the stopping mechanism of the cable reel feeding device includes a horizontal base frame 1 arranged in parallel. A feeding frame 2 is symmetrically fixed to one end of the top of the horizontal base frame 1. A longitudinal horizontal plate 3 spanning the horizontal base frame 1 is fixed to the other end of the top of the horizontal base frame 1. A feeding conductor device is fixed to the middle of the top of the longitudinal horizontal plate 3. Bearing seats 6 for rotatable connection between the feeding reel and the feeding frame 2 are symmetrically arranged coaxially on the feeding frame 2. Driven connecting shafts 5 are rotatably connected coaxially within the bearing seats 6. The ends of the driven connecting shafts 5 facing away from the other feeding frame 2 extend outward from their respective feeding frames 2 and are coaxially fixedly connected to locking wheels A7. Multiple locking grooves A are evenly distributed on the rim of the locking wheels A7. A vertically movable locking rod A8 is provided below the locking wheels A7 on the feeding frame 2. The top of the locking rod A8 matches the locking grooves A. The locking rod A8 is vertically movable within the guide sleeve 9 of the feeding frame 2. The bottom of the guide sleeve 9 is driven by the elastic restoring force of the pre-loaded spring A43 to move the locking rod A8 upward. When the locking rod A8 moves upward along the guide sleeve 9 to the maximum stroke, the locking rod A8 is inserted into the locking groove A of the locking wheel A7. The wire feeding device includes two parallel vertical plates 16 fixed to the top of the longitudinal horizontal plate 3 and located between the wire feeding frames 2. The plane of the vertical plates 16 is perpendicular to the wire feeding shaft 11. Between the vertical plates 16, along the direction away from the wire feeding shaft 11, the wire roller A17 and the wire roller B18 are arranged in sequence. The wire roller A17 is located above the wire roller B18. The cable fed by the wire feeding reel is wound around the wire roller A17 from above and then around the wire roller B18 from below. The vertical plates 16 are symmetrically provided with limiting drive devices for driving the locking rod A8 to move downward. When the locking rod A8 moves downward along the guide sleeve 9 to the maximum stroke, the locking rod A8 leaves the locking groove A.

[0025] The limiting drive device includes drive wheels A22, B23, C24, and D25, which are symmetrically rotatably connected to the outer end face of the vertical plate 16. Drive wheels A22, B23, C24, and D25 are driven by a drive belt 26. Drive wheel A22 is coaxially fixedly connected to guide roller A17, and drive wheel B23 is coaxially rotatably connected to guide roller B18. Drive wheel C24 is located below drive wheel B23 on the side facing drive wheel A22, and drive wheel D25 is located below drive wheel B23 on the side facing away from drive wheel A22. The drive wheels C24 and D25 are connected to the outer end face of the vertical plate 16. The driving wheel D25 is rotatably connected to the vertical plate 16 via the shaft A38 and shaft B respectively. The shaft A38 is slidably connected to the vertical plate 16 vertically. The shaft B is slidably connected to the vertical plate 16 in a direction facing or away from the driving wheel A22. The shaft A38 is connected to the locking rod A8 via a pull rope A21. One end of the pull rope A21 is wound around the guide wheel A13 of the wire feeding frame 2 from below and then connected to the locking rod A8. The other end of the pull rope A21 is wound around the guide wheel B19 of the vertical plate 16 from below and then connected to the shaft A38. The vertical plate 16 is also provided with a locking device for the driving wheel B23.

[0026] The locking device includes a drive wheel E27, a locking wheel B28, and a locking rod B31. The drive wheel E27 is coaxially fixed with the drive wheel A22, and the locking wheel B28 is coaxially fixed with the drive wheel B23. The locking rod B31 slides back and forth on the outer end face of the upright plate 16 via a slide 30. The slide 30 and the drive wheel E27 are connected by a pull rope B33. One end of the pull rope B33 is fixed with an annular sleeve that matches the rim of the drive wheel E27. The annular sleeve is fitted onto the drive wheel E27. The other end of the pull rope B33 is fixedly connected to the slide 30. The slide 30, located at the opposite end of the pull rope B33, is also connected to the upright plate 16 via a pre-tensioned spring B32. The direction of the force of the spring B32 is parallel to the direction of movement of the slide 30. The pull rope B33 pulls the slide 30 against the force of the spring B32. The transmission wheel E27 is located between the transmission wheel A22 and the upright plate 16, the locking wheel B28 is located between the transmission wheel B23 and the upright plate 16, the slide 30 is located between the locking wheel B28 and the upright plate 16, and the locking rod B31 is fixed to the side of the slide 30 facing away from the upright plate 16. The rim of the locking wheel B28 has multiple locking grooves B evenly distributed. The end of the locking rod B31 facing the locking wheel B28 matches the locking groove B. When the locking rod B31 moves to the maximum stroke position facing the locking wheel B28, the locking rod B31 is inserted into the locking groove B; when the locking rod B31 moves to the maximum stroke position facing away from the locking wheel B28, the locking rod B31 leaves the locking groove B.

[0027] One end of the spring B32 is fixedly connected to the vertical plate 16 via the connecting post 39.

[0028] A guide wheel C29 is rotatably connected to the upright plate 16. The pull rope B33 is wound around the guide wheel C29. The pull rope B33 located between the guide wheel C29 and the slide 30 is parallel to the moving direction of the slide 30. The pull rope B33 located between the guide wheel C29 and the transmission wheel E27 is tangent to the connection point of the transmission wheel E27.

[0029] The guide wheel B19's central shaft C37 passes through two parallel vertical plates 16.

[0030] The upright plate 16 has a strip hole A40 at the position corresponding to the shaft A38, and the shaft A38 moves back and forth along the strip hole A40. The upright plate 16 has a strip hole B41 at the position corresponding to the shaft B, and the shaft B moves back and forth along the strip hole B41.

[0031] The guide roller A17, drive wheel A22 and drive wheel E27 are coaxially fixedly connected to the rotating shaft A35, and the guide roller B18, drive wheel B23 and locking wheel B28 are coaxially rotatably connected to the rotating shaft B36.

[0032] The two ends of the shaft A38 are rotatably connected to the connecting sleeves 20. The bottom of the connecting sleeves 20 is fixed to the pull rope A21. The shaft A38 passes through two parallel vertical plates 16.

[0033] The longitudinal horizontal plate 3 is provided with locking bolts 34 at the position corresponding to the horizontal base frame 1.

[0034] The roller surfaces of both guide roller A17 and guide roller B18 are concave arc surfaces with a diameter decreasing from both ends to the middle.

[0035] The driven connecting shaft 5 extends from one end of the other wire feeding frame 2 into a bearing seat 6, and is detachably and coaxially fixed with a wire feeding shaft 11 for coaxially fixing the wire feeding shaft disc, and the wire feeding disc is coaxially fixed to the wire feeding shaft 11.

[0036] The middle part of the wire feeding shaft 11 is a threaded rod 4 coaxially arranged. The two ends of the threaded rod 4 are fixed with axial limiting flanges 12 through threads. The wire feeding reel is axially limited and fixed between the limiting flanges 12 and is coaxially arranged with the threaded rod 4. The cable limiting plates 46 at both ends of the wire feeding reel are axially limited and fixed with the corresponding limiting flanges 12. The inner diameters of the two ends of the winding sleeve 45 in the middle of the wire feeding reel are matched and fixed with the outer diameter of the flange of the limiting flange 12.

[0037] The driven connecting shaft 5 has a connecting groove coaxially provided on the end face facing the wire feeding shaft 11, which matches the wire feeding shaft 11. The side wall of the wire feeding shaft 11 has an installation notch corresponding to the position of the connecting groove. An installation cover 10 is detachably fixed at the installation notch. Both ends of the wire feeding shaft 11 are placed in the connecting groove through the installation notch and fixed by the installation cover 10.

[0038] The guide sleeve 9 is fixed to the connecting frame A14 of the wire feeding frame 2, and the guide wheel A13 is rotatably connected to the connecting frame B15 of the wire feeding frame 2.

[0039] The bottom center of the guide sleeve 9 is provided with a rope hole 42. The spring A43 is connected between the bottom of the locking rod A8 and the bottom of the guide sleeve 9. The end of the pull rope A21 passes through the rope hole 42 and the spring A43 in sequence and is fixedly connected to the bottom center of the locking rod A8.

[0040] The horizontal base frames 1 are fixedly connected by multiple connecting rods 44, and the spacing between two adjacent connecting rods 44 is equal.

[0041] In use, first separate the mounting cover 10 from the driven connecting shaft 5, then separate the limiting flange 12 at one end of the pay-off shaft 11 from the threaded rod 4. Next, remove one end of the limiting flange 12 from the pay-off shaft 11 and insert it into one end of the pay-off reel, limiting it against the limiting flange 12 at the other end of the pay-off shaft 11. Then, reconnect the previously removed limiting flange 12 to the threaded rod 4, fixing it to the other end of the pay-off reel. Adjust the two limiting flanges 12 to position the pay-off reel in the middle of the threaded rod 4. Then, rotate the driven connecting shaft 5 through the mounting notch to... Symmetrically upwards, place both ends of the pay-off shaft 11 into the mounting notches, and then install and fix the mounting cover 10 to the mounting notches; then loosen the locking bolt 34, adjust the distance between the longitudinal horizontal plate 3 and the pay-off frame 2 according to the specifications of the pay-off cable, and then tighten the locking bolt 34 to fix it; next, after the cable end wound on the pay-off reel has reached a sufficient length, it is wound onto the guide roller A17 from above and onto the guide roller B18 from below; then the cable ends wound onto the guide roller A17 and guide roller B18 are continuously pulled, and the cable is continuously pulled... During the process, guide rollers A17 and B18 rotate under the action of friction. The rotation of guide roller A17 drives shaft A35 and transmission wheels A22 and E27. Due to the rotation of transmission wheel E27, the annular sleeve of pull rope B33 rotates with transmission wheel E27 under the action of static friction. This, in turn, causes pull rope B33 to move the sliding carriage 30 against the pre-action force of spring B32, causing the locking rod B31 fixed to the sliding carriage 30 to move towards the locking wheel B28 and into the locking groove B. Since the locking wheel B28 is coaxially fixed with transmission wheel B23, With the transmission wheel B23 locked and unable to rotate, after the locking rod B31 is inserted into the locking groove B, the locking rod B31 cannot continue to move, which causes the slide 30 to also be unable to move and the pull rope B33 to be unable to be pulled. This causes the annular belt sleeve of the pull rope B33 to also be unable to rotate. However, since the transmission wheel E27 continues to rotate, a sliding friction is formed between the annular belt sleeve and the transmission wheel E27. Through the sliding friction, the annular belt sleeve, the pull rope B33, the slide 30, and the locking rod B31 can be kept in the locked state of being inserted into the locking groove B.Furthermore, since drive wheel A22 rotates while drive wheel B23 is locked, the total length of the drive belt 26 between drive wheels A22 and C24, and between C24 and B23, decreases, while the total length of the drive belt 26 between drive wheels A22 and D25, and between D25 and B23, increases. This causes the shaft A38 of drive wheel C24 to move upward along the slot A40, and the shaft B of drive wheel D25 to move downward along the slot B41. This, in turn, moves the pull rope A21, which in turn moves the locking rod A8 downward against the preload of spring A until it separates from the locking groove A. This, in turn, separates the locking rod A8 from the locking wheel A7, allowing the pay-off reel to... The drive belt rotates as the cable is pulled, facilitating easy cable unloading. When the shaft A38 of the drive wheel C24 moves upward to the top of the slot A40, the drive wheel C24 can no longer move upward. This causes the total length of the drive belt 26 between the drive wheels A22 and C24, and between the drive wheels C24 and B23, to remain unchanged, while the drive wheel A22 continues to rotate. Therefore, sliding friction is formed between the drive belt 26 and the drive wheel A22. Through this sliding friction, the drive belt 26 and the drive wheel C24 remain at the top of the slot A40, thus allowing the pull rope A21 and the locking rod A8 to overcome the pre-action force of the spring A and remain in the unlocked state away from the locking groove A. When the cable length reaches the required length after passing through guide rollers A17 and B18, the cable pulling stops. At this point, both guide rollers A17 and B18 stop rotating, and drive wheels A22 and E27 simultaneously come to a standstill. Therefore, the annular sleeve of pull rope B33 and drive wheel E27 instantly lose sliding friction, allowing the preload of spring B to return the slide 30, locking rod B31, and pull rope B33 to their initial positions. At this time, locking rod B31 separates from the locking groove of locking wheel B28, putting locking wheel B28 and drive wheel B23 in the unlocked state. Since drive wheel A22 is now stationary... However, due to the belt drive formed by the transmission belt 26 and the transmission wheels A22, B23, C24 and D25, the transmission belt 26 has its own tension and forces acting on the transmission wheels A22, B23, C24 and D25 respectively. Therefore, even if the transmission wheel A22 stops rotating, the transmission belt 26 and the transmission wheel A22 can generate sufficient static friction force to overcome the pre-action restoring force of the spring A43 transmitted by the shaft rod A38 of the transmission wheel C24 through the pull rope A21, thus keeping the transmission belt 26 stationary with respect to the transmission wheel A22.Since the transmission wheel B23 is in the unlocked state, under the pre-action restoring force of the spring A43, the locking rod A8, the pull rope A21, and the shaft rod 38 of the transmission wheel C24 will still move due to the pre-action restoring force of the spring A43. Therefore, the shaft rod 38 will move downward along the slotted hole A40, causing the total length of the transmission belt 26 between the transmission wheels A22 and C24 and between the transmission wheels C24 and B23 to increase. This causes the total length of the transmission belt 26 between the transmission wheels A22 and D25 and between the transmission wheels D25 and B23 to decrease. Consequently, the shaft rod B of the transmission wheel D25 moves upward along the slotted hole B41 until the shaft rod A38 moves downward along the slotted hole A40 to the maximum stroke and the shaft rod B moves upward along the slotted hole B41 to the maximum stroke. At this time, the locking rod A8 moves upward into the locking groove A corresponding to the locking wheel A7, and the wire reel is automatically locked. This ensures automatic synchronous cable laying and stopping between the cable reel and the cable, guaranteeing consistent cable tension during the laying process. It prevents situations where a section of cable remains unlaid after the cable reel stops laying due to rotational inertia, thus ensuring smooth cable laying.

Claims

1. A stopping mechanism for a cable reel unloading device, characterized in that: The system includes a horizontally arranged base frame (1) with wire feeding frames (2) symmetrically fixed at one end of the top of the base frame (1). A longitudinal horizontal plate (3) spanning the base frame (1) is fixed at the other end of the top of the base frame (1). A wire feeding device is fixed at the top center of the longitudinal horizontal plate (3). Bearing seats (6) for rotatable connection between the wire feeding reel and the wire feeding frame (2) are symmetrically arranged on the wire feeding frames (2) on the same axis. Driven connecting shafts (5) are rotatably connected coaxially within each bearing seat (6). The driven connecting shaft (5) extends outward from one end of the wire feeding frame (2) opposite to the other wire feeding frame (2) and is fixedly connected to a locking wheel A (7) on the same axis. The rim of the locking wheel A (7) is evenly distributed with multiple locking grooves A. The wire feeding frame (2) is provided with a locking rod A (8) that moves up and down below the locking wheel A (7). The top of the locking rod A (8) matches the locking groove A. The locking rod A (8) is movably connected to the guide sleeve (9) of the wire feeding frame (2). The bottom of the guide sleeve (9) The locking rod A (8) is driven to move upward by the elastic restoring force of the preloaded spring A (43). When the locking rod A (8) moves upward along the guide sleeve (9) to the maximum stroke, the locking rod A (8) is inserted into the locking groove A of the locking wheel A (7). The wire feeding device includes two parallel vertical plates (16) fixed to the top of the longitudinal horizontal plate (3) and located between the wire feeding frames (2). The plane of the vertical plates (16) is perpendicular to the wire feeding shaft (11). The vertical plates (16) are positioned between each other along the wire feeding shaft (11). 1) The direction is provided with guide roller A (17) and guide roller B (18) in sequence. The guide roller A (17) is located above the guide roller B (18). The cable of the wire feeding reel is wound around the guide roller A (17) from above and then wound around the guide roller B (18) from below. The vertical plate (16) is symmetrically provided with a limiting drive device for driving the locking rod A (8) to move downward. When the locking rod A (8) moves downward along the guide sleeve (9) to the maximum stroke, the locking rod A (8) leaves the locking groove A. The limiting drive device includes a transmission wheel A (22), a transmission wheel B (23), a transmission wheel C (24) and a transmission wheel D (25) that are symmetrically rotatably connected to the outer end face of the upright plate (16). The upright plate (16) is also provided with a locking device for the transmission wheel B (23). The locking device includes a drive wheel E (27), a locking wheel B (28), and a locking rod B (31). The drive wheel E (27) is coaxially fixed with the drive wheel A (22), and the locking wheel B (28) is coaxially fixed with the drive wheel B (23). The locking rod B (31) slides back and forth on the outer end face of the upright plate (16) via a slide (30). The slide (30) is connected to the drive wheel E (27) via a pull rope B (33). One end of the pull rope B (33) is fixed with an annular belt sleeve that matches the rim of the transmission wheel E (27). The annular belt sleeve is placed on the transmission wheel E (27). The other end of the pull rope B (33) is fixedly connected to the slide (30). The slide (30) is located at the opposite end of the pull rope B (33) and is also connected to the upright plate (16) through a spring B (32) with pretension. The direction of the force of the spring B (32) is parallel to the direction of movement of the slide (30). The pull rope B (33) pulls the slide (30) against the force of the spring B (32). The transmission wheel E (27) is located between the transmission wheel A (22) and the upright plate (16). The locking wheel B (28) is located between the transmission wheel B (23) and the upright plate (16). The slide (30) is located between the locking wheel B (28) and the upright plate (16). The locking rod B (31) is fixed to the slide (30) facing away from the upright plate (16). On the side, the locking wheel B (28) shown has multiple locking grooves B evenly distributed on its rim. The end of the locking rod B (31) facing the locking wheel B (28) matches the locking groove B. When the locking rod B (31) moves to the maximum stroke position facing the locking wheel B (28), the locking rod B (31) is inserted into the locking groove B. When the locking rod B (31) moves to the maximum stroke position facing away from the locking wheel B (28), the locking rod B (31) leaves the locking groove B.

2. The stopping mechanism of the cable reel unloading device as described in claim 1, characterized in that: The transmission wheels A (22), B (23), C (24), and D (25) are driven by a transmission belt (26). The transmission wheel A (22) is coaxially fixedly connected to the guide roller A (17), and the transmission wheel B (23) is coaxially rotatably connected to the guide roller B (18). The transmission wheel C (24) is located below the transmission wheel B (23) and faces the transmission wheel A (22). The transmission wheel D (25) is located below the transmission wheel B (23) and faces away from the transmission wheel A (22). The transmission wheels C (24) and D (25) are respectively connected by a shaft rod A (3). 8) The shaft rod B is rotatably connected to the vertical plate (16). The shaft rod A (38) is slidably connected to the vertical plate (16) up and down. The shaft rod B is slidably connected to the vertical plate (16) along the direction facing or away from the transmission wheel A (22). The shaft rod A (38) is connected to the locking rod A (8) by a pull rope A (21). One end of the pull rope A (21) is wound from below around the guide wheel A (13) set on the wire feeder (2) and then connected to the locking rod A (8). The other end of the pull rope A (21) is wound from below around the guide wheel B (19) set on the vertical plate (16) and then connected to the shaft rod A (38).

3. The stopping mechanism of the cable reel unloading device as described in claim 2, characterized in that: The vertical plate (16) is provided with a strip hole A (40) at the position corresponding to the shaft rod A (38), and the shaft rod A (38) moves back and forth along the strip hole A (40). The vertical plate (16) is provided with a strip hole B (41) at the position corresponding to the shaft rod B, and the shaft rod B moves back and forth along the strip hole B (41).

4. The stopping mechanism of the cable reel unloading device as described in claim 2, characterized in that: The guide roller A (17), transmission wheel A (22) and transmission wheel E (27) are coaxially fixedly connected to the rotating shaft A (35), and the guide roller B (18), transmission wheel B (23) and locking wheel B (28) are coaxially rotatably connected to the rotating shaft B (36).

5. The stopping mechanism of the cable reel unloading device as described in claim 2, characterized in that: The two ends of the shaft A (38) are rotatably connected to the connecting sleeves (20), the bottom of the connecting sleeves (20) is fixed to the pull rope A (21), and the shaft A (38) passes through two parallel vertical plates (16).

6. The stopping mechanism of the cable reel unloading device as described in claim 1, characterized in that: The longitudinal horizontal plate (3) is provided with locking bolts (34) at the position corresponding to the horizontal base frame (1).

7. The stopping mechanism of the cable reel unloading device as described in claim 1, characterized in that: The driven connecting shaft (5) has a bearing seat (6) extending from one end facing the other wire feeding frame (2), and a wire feeding shaft (11) for coaxially fixing the wire feeding shaft disc is detachably and coaxially fixed thereto. The wire feeding disc is coaxially fixed to the wire feeding shaft (11).

8. The stopping mechanism of the cable reel unloading device as described in claim 7, characterized in that: The middle part of the wire feeding shaft (11) is a threaded rod (4) coaxially arranged. The two ends of the threaded rod (4) are fixed with axial limiting flanges (12) through threads. The wire feeding reel is axially limited and fixed between the limiting flanges (12) and coaxially arranged with the threaded rod (4). The cable limiting plates (46) at both ends of the wire feeding reel are axially limited and fixed with the limiting flanges (12) at the corresponding ends. The inner diameters of the two ends of the winding sleeve (45) in the middle of the wire feeding reel are matched and fixed with the outer diameter of the flange of the limiting flange (12).

9. The stopping mechanism of the cable reel unloading device as described in claim 1, characterized in that: The driven connecting shaft (5) has a connecting groove coaxially provided on the end face facing the wire feeding shaft (11) to match the wire feeding shaft (11). The side wall of the wire feeding shaft (11) is provided with an installation notch corresponding to the position of the connecting groove. An installation cover (10) is detachably fixed at the installation notch. Both ends of the wire feeding shaft (11) are placed in the connecting groove through the installation notch and fixed by the installation cover (10).

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