A wire-laying pulley device for preventing wire from running away

Abstract

The present invention discloses a device for preventing wire running on a wire-paying pulley, comprising a lifting mechanism fixed to a pole tower for lifting the wire-paying pulley. The lifting mechanism lifts the wire-paying pulley via a wire feed rope, and a guide mechanism for guiding the cable is provided at the front end of the wire-paying pulley. During operation, the lifting mechanism is mounted on the upper end of the pole pole and lifts the wire-paying pulley via the wire feed rope. When the wire-paying pulley is conveying wire, if the wire or the traction rope breaks, the clamping mechanism on the guide mechanism quickly clamps the wire, converting the wire from an unprotected state to a protected state, thereby preventing wire running accidents. This device is installed on the wire-paying pulley, does not require a separate installation, and is easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of electric power construction, in particular to a wire-laying pulley device for preventing wires from running away. Background Art

[0002] At present, during the construction of the ground wire of the transmission line project, the connection between the conductor or ground wire and the track board or the track board and the traction rope is manually connected. If the traction rope or the connection is not firm, it will cause the conductor or ground wire to run away, posing a huge threat to the safety of personnel and equipment in the line-laying section. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems and provide a wire-laying pulley anti-wire device that can effectively control wire-laying accidents.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A wire-paying pulley device for preventing wires from running away comprises a wire-paying pulley and a lifting mechanism fixed to a pole tower for lifting the wire-paying pulley. The lifting mechanism lifts the wire-paying pulley via a wire feed rope. A guide mechanism for guiding the cable is provided at the front end of the wire-paying pulley.

[0006] The lifting mechanism includes a support frame supported on the tower, a driving wheel arranged in the supporting frame, and a clamping wheel located below the driving wheel and cooperating with the driving wheel to clamp the wire feed rope. The clamping wheel is raised and lowered in the supporting frame. The outer cylindrical surfaces of the driving wheel and the clamping wheel are both provided with a first groove. A ratchet is provided on the rotating shaft of the driving wheel, and a pawl cooperating with the ratchet is provided on the inner wall of the supporting frame.

[0007] The guide mechanism includes a movable frame rotatably connected to the wire-releasing pulley, and guide wheels are symmetrically arranged in the upper and lower parts of the movable frame. The cable passes between the two guide wheels. A speed sensor for detecting the rotation speed of the guide wheels is provided on the inner wall of the movable frame, and a clamping mechanism for clamping the cable is provided on the outer side of the movable frame.

[0008] Furthermore, clamping frames are provided on both sides of the bottom of the support frame, and a pressing mechanism is provided between the clamping frames and the support frame.

[0009] Furthermore, the clamping mechanism includes guide rods arranged on both sides of the bottom of the support frame, an inner end of the clamping frame is provided with a guide groove cooperating with the guide rod, an outer end of the guide rod is provided with a baffle, and a compression spring is provided on the guide rod, an outer end of the compression spring is in contact with the baffle, and an inner end of the compression spring is in contact with the inner wall of the guide groove.

[0010] Furthermore, a handle is provided at one end of the outer side of the driving wheel shaft.

[0011] Furthermore, a lifting frame is provided in the support frame, and the lifting frame is slidably connected to the inner wall of the support frame through a guide rail slider pair. A mounting plate is symmetrically provided below the lifting frame in the support frame, and bolts for lifting the lifting frame are provided on the mounting plate, and the bolts are threadedly connected to the mounting plate.

[0012] Furthermore, a rotating rod is fixedly provided at the rear end of the movable frame, and the rear end of the rotating rod is rotatably connected to the line-releasing pulley.

[0013] Furthermore, the clamping mechanism includes a fixed plate fixed to the front end of the movable frame and a clamping plate arranged above the fixed plate and cooperating with the fixed plate for clamping the wire. The front end of the movable frame is also provided with a driving mechanism for driving the clamping plate to rise and fall.

[0014] Furthermore, the driving mechanism includes a lead screw symmetrically arranged at both ends of the movable frame, the upper and lower ends of the lead screw are rotatably connected to the movable frame, the lead screw passes through the movable frame and is threadedly connected to the movable frame, a through hole is provided on the fixed plate, the lead screw passes through the through hole on the fixed plate, the upper end of the movable frame is provided with a motor for driving one side of the lead screw to rotate, and the lower ends of the two lead screws are provided with pulleys, and the two pulleys are connected by a belt.

[0015] Furthermore, a second groove cooperating with the wire is provided in the middle of the fixing plate and the clamping plate.

[0016] The beneficial effects of the present invention are:

[0017] The present invention includes a lifting mechanism fixed to a tower for elevating a wire-paying trolley. The lifting mechanism uses a wire feed rope to elevate the trolley, and a guide mechanism for guiding the cable is provided at the front end of the trolley. During operation, the lifting mechanism is mounted on the upper end of the tower and uses the wire feed rope to elevate the trolley. If the wire or the traction rope breaks while the trolley is conveying conductors, a clamping mechanism on the guide mechanism quickly clamps the conductor, converting it from an unprotected state to a protected state and preventing wire slippage. This device is installed on the trolley, eliminating the need for a separate installation and facilitating easy operation.

[0018] 2. The present invention provides a ratchet on the rotating shaft of the driving wheel, and a pawl cooperating with the ratchet is provided on the inner wall of the supporting frame; when the driving wheel is rotated, the wire feeding rope lifts the wire-paying pulley upward under the action of the driving wheel and the clamping wheel, and lifts the wire-paying pulley to the upper end of the pole tower. Under the action of the ratchet and the pawl, the driving wheel will not reverse, which is safe and reliable.

[0019] 3. The guide mechanism of the present invention includes a movable frame rotatably connected to the wire-laying pulley, wherein guide wheels are symmetrically arranged in the upper and lower parts of the movable frame, and the cable passes between the two guide wheels. A speed sensor for detecting the rotation speed of the guide wheels is provided on the inner wall of the movable frame, and a clamping mechanism for clamping the cable is provided on the outer side of the movable frame. When the wire passes between the guide wheels and the wire or the traction rope breaks, the speed sensor detects that the speed of the guide wheel exceeds the threshold and transmits the signal to the clamping mechanism. The clamping mechanism immediately pulls the wire to prevent the wire from running away, protecting the wire at any time and preventing the wire from running away. The speed sensor can ensure that it does not work during the normal wire-laying construction process and only works when a wire running accident occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 It is a schematic diagram of the present invention;

[0022] Figure 2 This is a front view of the lifting mechanism of the present invention;

[0023] Figure 3 It is a cross-sectional view of the pressing mechanism of the present invention;

[0024] Figure 4 A schematic diagram of the ratchet pawl of the present invention;

[0025] Figure 5 This is a structural diagram of the wire-laying pulley of the present invention;

[0026] Figure 6 Schematic diagram of the guiding mechanism structure of the present invention Figure 1 ;

[0027] Figure 7 Schematic diagram of the guiding mechanism structure of the present invention Figure 2 .

[0028] In the figure: the wire-paying pulley 1, the wire-feeding rope 2, the supporting frame 3, the driving wheel 4, the clamping wheel 5, the first groove 6, the ratchet 7, the pawl 8, the movable frame 9, the guide wheel 10, the speed sensor 11, the clamping frame 12, the guide rod 13, the guide groove 14, the baffle 15, the compression spring 16, the handle 17, the lifting frame 18, the mounting plate 19, the bolt 20, the rotating rod 21, the fixing plate 22, the clamping plate 23, the screw 24, the motor 25, the pulley 26, the belt 27, and the second groove 28. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0030] like Figure 1 As shown, a device for preventing wire from running away on a wire-paying pulley comprises a wire-paying pulley 1 and a lifting mechanism fixed to a pole tower for lifting the wire-paying pulley 1. The lifting mechanism lifts the wire-paying pulley 1 via a wire feed rope 2. The front end of the wire-paying pulley 1 is provided with a guide mechanism for guiding the cable, and the upper end of the wire-paying pulley 1 is provided with a connecting ring connected to the wire feed rope 2. During operation, the lifting mechanism is mounted on the upper end of the tower pole, and the lifting mechanism lifts the wire-paying pulley 1 via the wire feed rope 2. When the wire-paying pulley 1 is conveying a wire, if the wire or the traction rope breaks, the clamping mechanism on the guide mechanism quickly clamps the wire, changing the wire from an unprotected state to a protected state, thereby preventing wire running accidents. This device is installed on the wire-paying pulley and does not need to be set up separately, making it easy to operate.

[0031] like Figure 2 and Figure 4 As shown, the lifting mechanism includes a support frame 3 mounted on the tower, a drive wheel 4 disposed within the support frame 3, and a clamping wheel 5 located below the drive wheel 4 and cooperating with the drive wheel 4 to clamp the wire feed rope 2. The clamping wheel 5 is raised and lowered within the support frame 3. The outer cylindrical surfaces of the drive wheel 4 and the clamping wheel 5 are each provided with a first groove 6. The two first grooves 6 are spliced ​​together to form a circular channel through which the wire feed rope 2 passes. A ratchet 7 is provided on the rotating shaft of the drive wheel 4, and a pawl 8 that cooperates with the ratchet 7 is provided on the inner wall of the support frame 3. When the drive wheel 4 is rotated, the drive wheel 4 and the clamping wheel 5 act to pull the wire feed rope 2 upward and lift the wire feed rope 2 to the upper end of the tower. Furthermore, the ratchet 7 and pawl 8 prevent the drive wheel 4 from rotating, ensuring safety and reliability.

[0032] like Figure 5 and Figure 6As shown, the guide mechanism includes a movable frame 9 rotatably connected to the wire-laying pulley 1, and guide wheels 10 are symmetrically arranged in the movable frame 9. The cable passes between the two guide wheels 10. A groove is provided on the outer cylindrical surface of the guide wheel 10. A speed sensor 11 for detecting the rotation speed of the guide wheel 10 is provided on the inner wall of the movable frame 9, and a clamping mechanism for clamping the cable is provided on the outer side of the movable frame 9. When the wire passes between the guide wheels 10 and the wire or the traction rope breaks, the speed sensor 11 detects that the speed of the guide wheel 10 exceeds the threshold and transmits the signal to the clamping mechanism. The clamping mechanism immediately pulls the wire to prevent the wire from running away, protecting the wire at any time and preventing the wire from running away. The speed sensor 11 can ensure that it does not work during the normal wire-laying construction process and only works when a wire running accident occurs.

[0033] like Figure 2 and Figure 3 As shown, clamping frames 12 are provided on both sides of the bottom of the support frame 3 , and a pressing mechanism is provided between the clamping frames 12 and the support frame 3 .

[0034] The clamping mechanism includes guide rods 13 disposed on both sides of the bottom of the support frame 3. A guide groove 14 is provided on the inner end of the clamping frame 12, which cooperates with the guide rod 13. A baffle 15 is provided on the outer end of the guide rod 13. A compression spring 16 is provided on the guide rod 13. The outer end of the compression spring 16 contacts the baffle 15, and the inner end of the compression spring 16 contacts the inner wall of the guide groove 14. When installing the support frame 3, the clamping frames 12 on both sides are first pulled outward to overcome the elastic force of the compression spring 16 and clamped onto the upper end of the tower pole. Under the action of the compression spring 16, the tower pole is clamped, thereby fixing the support frame 3. The elastic force of the compression spring 16 can adapt to tower poles of different sizes.

[0035] like Figure 2 As shown, a handle 17 is provided at one end of the outer side of the rotating shaft of the driving wheel 4, and the driving wheel 4 is rotated manually through the handle 17.

[0036] like Figure 2 As shown, a lifting frame 18 is provided within the support frame 3. The lifting frame 18 is slidably connected to the inner wall of the support frame 3 via a guide rail slider pair. A mounting plate 19 is symmetrically provided within the support frame 3 below the lifting frame 18. The mounting plate 19 is provided with bolts 20 for lifting the lifting frame 18. The bolts 20 are threadedly connected to the mounting plate 19, and the mounting plate 19 is provided with nuts that cooperate with the bolts 20. By turning the bolts 20, the lifting frame 18 can be lifted upward, thereby clamping the wire via the clamping wheel 5 and the driving wheel 4.

[0037] like Figure 5 As shown, a rotating rod 21 is fixedly provided at the rear end of the movable frame 9 , and the rear end of the rotating rod 21 is rotatably connected to the line-releasing pulley 1 .

[0038] The clamping mechanism includes a fixed plate 22 fixed to the front end of the movable frame 9, and a clamping plate 23 disposed above the fixed plate 22 and cooperating with the fixed plate 22 to clamp the wire. The front end of the movable frame 9 is also provided with a drive mechanism for driving the clamping plate 23 upward and downward. When the speed sensor 11 detects that the speed of the guide wheel 10 exceeds a threshold, it transmits a signal to the drive mechanism, which drives the clamping plate 23 downward to cooperate with the fixed plate 22 to clamp the wire.

[0039] like Figure 7 As shown, the driving mechanism includes screws 24 symmetrically arranged at both ends of the movable frame 9. The upper and lower ends of the screws 24 are rotatably connected to the movable frame 9. The screws 24 pass through the movable frame 9 and are threadedly connected to the movable frame 9. A through hole is provided on the fixed plate 22, and the screws 24 pass through the through hole on the fixed plate 22. A motor 25 is provided at the upper end of the movable frame 9 to drive the screws 24 on one side to rotate. Pulleys 26 are provided at the lower ends of the two screws 24. The two pulleys 26 are connected by a belt 27. The motor drives one screw to rotate, and under the action of the belt 27, the screws on both sides rotate synchronously.

[0040] A second groove 28 for matching with the wire is provided in the middle of the fixing plate 22 and the clamping plate 23 .

[0041] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0042] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A wire-laying pulley device for preventing wire from running away, comprising a wire-laying pulley (1), characterized in that: It also includes a lifting mechanism fixed on the pole tower for lifting the wire-laying pulley (1), the lifting mechanism lifting the wire-laying pulley (1) through the wire feeding rope (2), and the front end of the wire-laying pulley (1) is provided with a guide mechanism for guiding the cable; The lifting mechanism comprises a support frame (3) mounted on the tower, a driving wheel (4) arranged in the supporting frame (3), and a clamping wheel (5) located below the driving wheel (4) and cooperating with the driving wheel (4) to clamp the wire feed rope (2); the clamping wheel (5) is raised and lowered in the supporting frame (3); the outer cylindrical surfaces of the driving wheel (4) and the clamping wheel (5) are both provided with a first groove (6); a ratchet (7) is provided on the rotating shaft of the driving wheel (4); and a ratchet pawl (8) cooperating with the ratchet (7) is provided on the inner wall of the supporting frame (3); Clamping frames (12) are provided on both sides of the bottom of the support frame (3), and a clamping mechanism is provided between the clamping frame (12) and the support frame (3), and the clamping mechanism includes guide rods (13) provided on both sides of the bottom of the support frame (3), an inner end of the clamping frame (12) is provided with a guide groove (14) that cooperates with the guide rod (13), an outer end of the guide rod (13) is provided with a baffle (15), and a compression spring (16) is provided on the guide rod (13), an outer end of the compression spring (16) contacts the baffle (15), and an inner end of the compression spring (16) contacts the inner wall of the guide groove (14); A lifting frame (18) is provided in the support frame (3), and the lifting frame (18) is slidably connected to the inner wall of the support frame (3) through a guide rail slider pair. A mounting plate (19) is symmetrically provided below the lifting frame (18) in the support frame (3), and a bolt (20) for lifting the lifting frame (18) is provided on the mounting plate (19), and the bolt (20) is threadedly connected to the mounting plate (19); The guide mechanism comprises a movable frame (9) rotatably connected to the pay-off pulley (1), wherein guide wheels (10) are symmetrically arranged in the upper and lower parts of the movable frame (9), and the cable passes between the two guide wheels (10). A rotation speed sensor (11) for detecting the rotation speed of the guide wheels (10) is provided on the inner wall of the movable frame (9), and a clamping mechanism for clamping the cable is provided on the outer side of the movable frame (9); The clamping mechanism comprises a fixed plate (22) fixed to the front end of the movable frame (9) and a clamping plate (23) arranged above the fixed plate (22) and cooperating with the fixed plate (22) for clamping the wire. The front end of the movable frame (9) is also provided with a driving mechanism for driving the clamping plate (23) to rise and fall. The driving mechanism includes a lead screw (24) symmetrically arranged at both ends of the movable frame (9), the upper and lower ends of the lead screw (24) are rotatably connected to the movable frame (9), the lead screw (24) passes through the movable frame (9) and is threadedly connected to the movable frame (9), a through hole is provided on the fixed plate (22), the lead screw (24) passes through the through hole on the fixed plate (22), the upper end of the movable frame (9) is provided with a motor (25) for driving one side of the lead screw (24) to rotate, and the lower ends of the two lead screws (24) are provided with pulleys (26), and the two pulleys (26) are connected by a belt (27); A second groove (28) that matches the wire is provided in the middle of the fixing plate (22) and the clamping plate (23).

2. A wire-laying pulley device for preventing wire from running away as claimed in claim 1, characterized in that: A handle (17) is provided at one end outside the rotating shaft of the driving wheel (4).

3. The wire-laying pulley anti-wire running device according to claim 1, characterized in that: A rotating rod (21) is fixedly provided at the rear end of the movable frame (9), and the rear end of the rotating rod (21) is rotatably connected to the line-releasing pulley (1).

Images