Construction pulley for overhead transmission line

Abstract

The invention relates to a construction tackle for an overhead transmission line, which comprises a main body frame, a pulley shaft is arranged in the main body frame, a pulley is sleeved on the outer side of the pulley shaft through a bearing, a top plate is fixedly arranged at the top of the main body frame, a lifting device is arranged on the upper side of the top plate, and a lifting ring is arranged at the upper end of the lifting device. A wire stabilizing mechanism is arranged between the outer side of the main body frame and the pulley; the device can respond to the dynamic change of the wire in time, limit and stabilize the wire, effectively reduce the shaking of the wire, improve the stability of the wire in the construction process, and guarantee the construction safety.

Description

Technical Field

[0001] The invention belongs to the technical field of power transmission line auxiliary equipment, and in particular relates to a construction pulley for overhead power transmission lines. Background Art

[0002] Overhead transmission lines are one of the commonly used facilities in power engineering. Overhead transmission lines refer to power lines erected on the ground and insulated by insulators and air. They are part of the infrastructure transmission lines. During the line construction process, construction pulleys are usually required to protect the laid cables and conductors. In the infrastructure transmission lines, the conductors and lightning conductors can be erected on the assembled towers according to the designed line stress sag through the construction pulleys.

[0003] During the construction of overhead transmission lines, construction pulleys are commonly used tools, primarily used to support and guide conductors and ground wires for operations such as laying out and tightening them. However, existing construction pulleys present several practical challenges. For example, as conductors or ground wires pass through the pulleys, wind forces, changes in conductor tension, and other factors can cause them to deviate from their normal position. Furthermore, the conductors are prone to vibration during the laying process, which not only affects construction efficiency but can also damage the conductors and pulleys, potentially leading to safety accidents. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a construction pulley that can improve the stability of the conductor, ensure construction safety and improve construction efficiency.

[0005] The object of the present invention is achieved as follows: a construction pulley for an overhead power transmission line, which includes a main frame, a pulley shaft is arranged inside the main frame, a pulley is arranged on the outside of the pulley shaft through a bearing sleeve, a top plate is fixedly arranged on the top of the main frame, a hoist is arranged on the upper side of the top plate, a lifting ring is arranged on the upper end of the hoist, and a line stabilizing mechanism is arranged between the outside of the main frame and the pulley.

[0006] The bottom of the main frame is provided with a foot plate, which is perpendicular to the main frame and facilitates daily placement of the device.

[0007] The line stabilizing mechanism includes a translation block, a lifting rack and a top cover. Inner grooves are provided on the left and right sides of the main frame. A vertical rod is vertically provided inside the inner groove. A translation block is provided at one end of the pulley shaft close to the main frame. The translation block is located inside the inner groove. The vertical rod passes through the translation block. A reset spring is provided between the bottom of the translation block and the inner groove. The reset spring is sleeved on the outside of the vertical rod.

[0008] A lifting rack is provided above the inner groove, and transmission gears are meshed on the front and rear sides of the lifting rack. Top covers are provided on the front and rear sides of the main frame, and the top covers are hinged to the main frame through a hinge wheel. A driven gear is provided on the inner side of the hinge wheel, and the driven gear is meshed with the transmission gear.

[0009] A protrusion is fixedly provided on the outer side of the translation block, a connecting rod is provided on the upper side of the protrusion, and the top end of the connecting rod is fixedly connected to the bottom of the lifting rack. When the protrusion moves, the lifting rack can be driven to move through the connecting rod.

[0010] The translation block cooperates with the inner groove, and the translation block can move up and down along the inner groove.

[0011] The outer surface of the main frame is provided with a clamping frame, which limits the position of the connecting rod and the lifting rack. The clamping frame ensures that the connecting rod and the lifting rack move along a predetermined route.

[0012] The top cover includes a cover plate and a pressing block, the cover plate and the pressing block are connected via a connecting portion, a wire groove is provided at the bottom of the pressing block, a ball is provided inside the wire groove, and the position of the wire groove corresponds to the pulley.

[0013] A buffer groove is provided inside the cover plate along the direction of the wire groove, the connecting portion is movably provided in the middle of the buffer groove, and buffer springs are provided between the front and rear sides of the connecting portion and the buffer groove.

[0014] The connecting portion includes a shell and a connecting head, wherein the connecting head is movably connected to the inside of the shell, and a buffer pad is provided between the connecting head and the shell. Under the action of the buffer pad, the connecting head can move up and down inside the shell.

[0015] The beneficial effects of the present invention are as follows: a top plate is provided on the top of the main frame, a hoist is provided on the upper side of the top plate, and a lifting ring is provided on the upper end of the hoist. Construction workers can use the lifting ring to conveniently lift the device to a suitable position for installation, saving manpower and time and improving construction efficiency.

[0016] In the wire stabilization mechanism, a translation block is connected to the pulley shaft. When the wire on the pulley shakes or deviates from its normal position due to factors such as tension changes or wind, the pulley shaft drives the translation block up and down along the vertical rod. As the translation block moves, the lifting rack is raised and lowered via the protrusion and connecting rod, which in turn rotates the transmission gear, which in turn drives the top cover up or down via the driven gear. This limits and stabilizes the wire, effectively reducing wire shaking.

[0017] A buffer groove is located within the cover, with the connector flexibly positioned in the center of the groove. Buffer springs are located between the front and rear sides of the connector and the groove, and a cushion is placed between the connector and the housing. When the wires are impacted by external forces, this buffer structure absorbs and disperses the impact, providing shock absorption both horizontally and vertically, reducing impact on the cover and the entire device, minimizing the risk of damage from external impacts and improving reliability and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an overall structural diagram of a construction pulley for overhead power transmission lines according to the present invention.

[0019] Figure 2 The present invention is a side view of the main frame of a construction pulley for overhead power transmission lines.

[0020] Figure 3 This is a structural diagram of the inner groove of a construction pulley for overhead power transmission lines according to the present invention.

[0021] Figure 4 This is a structural diagram of the connection between the transmission gear and the driven gear of a construction pulley for an overhead power transmission line according to the present invention.

[0022] Figure 5 This is a structural diagram of the top cover of a construction pulley for overhead power transmission lines according to the present invention.

[0023] Figure 6 The present invention is a front view of the top cover of a construction pulley for overhead power transmission lines.

[0024] Figure 7 The present invention is a bottom view of a cover plate of a construction pulley for an overhead power transmission line.

[0025] Figure 8 The present invention is a cross-sectional view of the connection portion of a construction pulley for an overhead power transmission line.

[0026] In the figure: 1, main frame 2, pulley shaft 3, pulley 4, top plate 5, hoist 6, lifting ring 7, foot plate 8, line stabilizing mechanism 9, inner groove 10, vertical rod 11, return spring 12, translation block 13, protrusion 14, connecting rod 15, lifting rack 16, card frame 17, top cover 18, transmission gear 19, hinge wheel 20, driven gear 21, cover plate 22, pressure block 23, connecting part 24, wire groove 25, ball 26, buffer groove 27, buffer spring 28, shell 29, connector 30, buffer pad. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Example 1 like Figure 1 As shown, a construction pulley for an overhead power transmission line includes a main frame 1, a pulley shaft 2 is provided inside the main frame 1, a pulley 3 is provided on the outside of the pulley shaft 2 through a bearing sleeve, a top plate 4 is fixedly provided on the top of the main frame 1, a hoist 5 is provided on the upper side of the top plate 4, a lifting ring 6 is provided on the upper end of the hoist 5, and a line stabilizing mechanism 8 is provided between the outer side of the main frame 1 and the pulley 3.

[0029] The bottom of the main frame 1 is provided with a foot plate 7, which is perpendicular to the main frame 1. The foot plate 7 increases the stability of the main frame 1 when placed, so that the device can remain stable during placement and is not easy to shake, thereby preventing the main frame 7 from tipping over and causing damage to the pulley 3.

[0030] When using the present invention, check that all components of the device are complete and free of damage or deformation. Select a suitable installation location based on construction requirements. Use a suitable lifting tool and reliably connect the hook of the lifting device to the lifting ring 6 on the hoist 5. Ensure the hook and the lifting ring 6 are firmly connected to prevent slippage during the lifting process, and then smoothly lift the device to the installation location. Slowly insert the wire to be constructed into the pulley groove of the construction pulley via the walking board. Once the wire is inserted, the wire stabilizing mechanism 8 automatically adjusts its height according to the wire tension, limiting and stabilizing the wire.

[0031] Example 2 like Figure 1-4 As shown, a construction pulley for an overhead power transmission line includes a main frame 1, a pulley shaft 2 is provided inside the main frame 1, a pulley 3 is provided on the outside of the pulley shaft 2 through a bearing sleeve, a top plate 4 is fixedly provided on the top of the main frame 1, a hoist 5 is provided on the upper side of the top plate 4, a lifting ring 6 is provided on the upper end of the hoist 5, and a line stabilizing mechanism 8 is provided between the outer side of the main frame 1 and the pulley 3.

[0032] For better effect, the bottom of the main frame 1 is provided with a foot plate 7, and the foot plate 7 is perpendicular to the main frame 1. The foot plate 7 increases the stability of the main frame 1 when placed, so that the device can remain stable during placement and is not easy to shake, thereby preventing the main frame 7 from tipping over and causing damage to the pulley 3.

[0033] For better results, the line stabilizing mechanism 8 includes a translation block 12, a lifting rack 15, and a top cover 17. Inner grooves 9 are provided on both the left and right sides of the main frame 1. A vertical rod 10 is vertically provided inside the inner grooves 9. A translation block 12 is provided at one end of the pulley shaft 2 close to the main frame 1. The translation block 12 is located inside the inner grooves 9. The vertical rod 10 passes through the translation block 12. A reset spring 11 is provided between the bottom of the translation block 12 and the inner groove 9. The reset spring 11 is sleeved on the outside of the vertical rod 10. The provision of the reset spring 11 enables the translation block 12 to automatically reset after being moved by force, allowing the line stabilizing mechanism 8 to adapt to changes in conductor tension under different working conditions and always maintain a stable effect on the conductor.

[0034] For better effect, a lifting rack 15 is provided above the inner groove 9, and a transmission gear 18 is meshed on the front and rear sides of the lifting rack 15. A top cover 17 is provided on the front and rear sides of the main frame 1. The top cover 17 is hinged to the main frame 1 through a hinge wheel 19. A driven gear 20 is provided on the inside of the hinge wheel 19, and the driven gear 20 is meshed with the transmission gear 18.

[0035] For better effect, a protrusion 13 is fixedly provided on the outside of the translation block 12, and a connecting rod 14 is provided on the upper side of the protrusion 13. The top of the connecting rod 14 is fixedly connected to the bottom of the lifting rack 15. When the protrusion 13 moves, the lifting rack 15 can be driven to move by the connecting rod 14.

[0036] For better effect, the translation block 12 cooperates with the inner groove 9, and the translation block 12 can move up and down along the inner groove 9. The translation block 12 moves along the inner groove 9 to increase stability during movement.

[0037] For better effect, a card frame 16 is provided on the outer surface of the main frame 1, and the card frame 16 limits the connecting rod 14 and the lifting rack 15. The card frame 16 ensures that the connecting rod 14 and the lifting rack 15 move along a predetermined route to avoid position deviation.

[0038] When using the present invention, check that all components of the device are complete and free of damage or deformation. Select a suitable installation location based on construction requirements. Use a suitable lifting tool and reliably connect the hook of the lifting device to the lifting ring 6 on the hoist 5. Ensure the hook and the lifting ring 6 are firmly connected to prevent slippage during the lifting process, and then smoothly lift the device to the installation location. Slowly insert the wire to be constructed into the pulley groove of the construction pulley via the walking board. Once the wire is inserted, the wire stabilizing mechanism 8 automatically adjusts its height according to the wire tension, limiting and stabilizing the wire.

[0039] Furthermore, the line stabilizing mechanism is preferably used as follows: under normal conditions, the return spring 11 pushes the pulley 3 upward, at which time the line stabilizing mechanism 8 is in an open state, facilitating the passage of the walking board. When the walking board drives the wire to pass through the pulley 3, the wire tension increases, and the pulley shaft 2 presses the translation block 12 downward, and the translation block 12 moves downward along the inner groove 9, compressing the return spring 11. The protrusion 13 on the outside of the translation block 12 moves downward accordingly, driving the connecting rod 14 to move downward, thereby lowering the lifting rack 15. During the descent of the lifting rack 15, the transmission gears 18 on the front and rear sides thereof begin to rotate. Since the transmission gear 18 is engaged with the driven gear 20 on the inside of the hinge wheel 19, the rotation of the transmission gear 18 will drive the driven gear 20 to rotate, thereby causing the top cover 17 to rotate around the main frame 1 through the hinge wheel 19, so that the top cover 17 is gradually pressed down close to the wire, which plays a role in limiting and stabilizing the wire. When the tension of the wire decreases, the elastic force of the return spring 11 causes the translation block 12 to move upward, driving the lifting rack 15 to rise through the connecting rod 14, the transmission gear 18 to rotate in the opposite direction, and the driven gear 20 also rotates in the opposite direction. The top cover 17 gradually opens, reducing the pressure on the wire, but still maintaining a certain limiting effect.

[0040] Example 3 like Figure 1-8 As shown, a construction pulley for an overhead power transmission line includes a main frame 1, a pulley shaft 2 is provided inside the main frame 1, a pulley 3 is provided on the outside of the pulley shaft 2 through a bearing sleeve, a top plate 4 is fixedly provided on the top of the main frame 1, a hoist 5 is provided on the upper side of the top plate 4, a lifting ring 6 is provided on the upper end of the hoist 5, and a line stabilizing mechanism 8 is provided between the outer side of the main frame 1 and the pulley 3.

[0041] For better effect, the bottom of the main frame 1 is provided with a foot plate 7, and the foot plate 7 is perpendicular to the main frame 1. The foot plate 7 increases the stability of the main frame 1 when placed, so that the device can remain stable during placement and is not easy to shake, thereby preventing the main frame 7 from tipping over and causing damage to the pulley 3.

[0042] For better results, the line stabilizing mechanism 8 includes a translation block 12, a lifting rack 15, and a top cover 17. Inner grooves 9 are provided on both the left and right sides of the main frame 1. A vertical rod 10 is vertically provided inside the inner grooves 9. A translation block 12 is provided at one end of the pulley shaft 2 close to the main frame 1. The translation block 12 is located inside the inner grooves 9. The vertical rod 10 passes through the translation block 12. A reset spring 11 is provided between the bottom of the translation block 12 and the inner groove 9. The reset spring 11 is sleeved on the outside of the vertical rod 10. The provision of the reset spring 11 enables the translation block 12 to automatically reset after being moved by force, allowing the line stabilizing mechanism 8 to adapt to changes in conductor tension under different working conditions and always maintain a stable effect on the conductor.

[0043] For better effect, a lifting rack 15 is provided above the inner groove 9, and a transmission gear 18 is meshed on the front and rear sides of the lifting rack 15. A top cover 17 is provided on the front and rear sides of the main frame 1. The top cover 17 is hinged to the main frame 1 through a hinge wheel 19. A driven gear 20 is provided on the inside of the hinge wheel 19, and the driven gear 20 is meshed with the transmission gear 18.

[0044] For better effect, a protrusion 13 is fixedly provided on the outside of the translation block 12, and a connecting rod 14 is provided on the upper side of the protrusion 13. The top of the connecting rod 14 is fixedly connected to the bottom of the lifting rack 15. When the protrusion 13 moves, the lifting rack 15 can be driven to move by the connecting rod 14.

[0045] For better effect, the translation block 12 cooperates with the inner groove 9, and the translation block 12 can move up and down along the inner groove 9. The translation block 12 moves along the inner groove 9 to increase stability during movement.

[0046] For better effect, a card frame 16 is provided on the outer surface of the main frame 1, and the card frame 16 limits the connecting rod 14 and the lifting rack 15. The card frame 16 ensures that the connecting rod 14 and the lifting rack 15 move along a predetermined route to avoid position deviation.

[0047] For better performance, the top cover 17 includes a cover plate 21 and a pressure block 22. The cover plate 21 and the pressure block 22 are connected by a connecting portion 23. A wire groove 24 is provided at the bottom of the pressure block 22. A ball bearing 25 is provided inside the wire groove 24. The position of the wire groove 24 corresponds to that of the pulley 25. When the wire is stabilized by the top cover 17, the ball bearing 25 can reduce the friction between the wire and the wire groove 24, preventing the wire from being damaged by friction during movement and extending the service life of the wire.

[0048] For better effect, a buffer groove 26 is set inside the cover plate 21 along the direction of the wire groove 24, the connecting part 23 is movably set in the middle of the buffer groove 26, and buffer springs 27 are set between the front and rear sides of the connecting part 23 and the buffer groove 26.

[0049] For better effect, the connecting portion 23 includes a shell 28 and a connecting head 29, the connecting head 29 is movably connected to the inside of the shell 28, and a buffer pad 30 is provided between the connecting head 29 and the shell 28. Under the action of the buffer pad 30, the connecting head 29 can move up and down inside the shell 28.

[0050] When using the present invention, check that all components of the device are complete and free of damage or deformation. Select a suitable installation location based on construction requirements. Use a suitable lifting tool and reliably connect the hook of the lifting device to the lifting ring 6 on the hoist 5. Ensure the hook and the lifting ring 6 are firmly connected to prevent slippage during the lifting process, and then smoothly lift the device to the installation location. Slowly insert the wire to be constructed into the pulley groove of the construction pulley via the walking board. Once the wire is inserted, the wire stabilizing mechanism 8 automatically adjusts its height according to the wire tension, limiting and stabilizing the wire.

[0051] Furthermore, the top cover structure is preferably used as follows: slowly insert the wire into the pulley groove, and as the wire moves, the wire will enter the wire groove 24 at the bottom of the pressure block 22 on the lower side of the top cover 17. Since the wire groove 24 is provided with a ball 25, the wire contacts the ball 25 and drives the ball 25 to roll, reducing the friction between the wire and the wire groove 24 and preventing the wire from being damaged by friction. When the wire is shaken or impacted by external force, the wire will exert pressure on the pressure block 22. After the pressure is applied to the pressure block 22, it will transfer the force to the cover plate 21 through the connecting part 23. The connecting part 23 will move to a certain extent in the buffer groove 26, compressing the buffer spring 27 on the front or rear side, playing a buffering role, and reducing the impact of external forces on the top cover 17 and the entire device. At the same time, the buffer pad 30 between the connector 29 and the shell 28 will also undergo slight deformation, further absorbing and dispersing the impact force, and protecting the top cover 17 structure from damage.

[0052] This device can respond to the dynamic changes of the conductor in a timely manner, limit and stabilize the conductor, effectively reduce the shaking of the conductor, improve the stability of the conductor during construction, and ensure construction safety.

Claims

1. A construction pulley for an overhead power transmission line, comprising a main frame, characterized in that: A pulley shaft is provided inside the main frame, a pulley is provided on the outside of the pulley shaft through a bearing sleeve, a top plate is fixedly provided on the top of the main frame, a hoist is provided on the upper side of the top plate, a lifting ring is provided on the upper end of the hoist, and a line stabilizing mechanism is provided between the outside of the main frame and the pulley.

2. A construction pulley for an overhead power transmission line according to claim 1, characterized in that: A foot plate is provided at the bottom of the main frame, and the foot plate and the main frame are perpendicular to each other.

3. The construction pulley for an overhead power transmission line according to claim 1, characterized in that: The line stabilizing mechanism includes a translation block, a lifting rack and a top cover. Inner grooves are provided on the left and right sides of the main frame. A vertical rod is vertically provided inside the inner groove. A translation block is provided at one end of the pulley shaft close to the main frame. The translation block is located inside the inner groove. The vertical rod passes through the translation block. A reset spring is provided between the bottom of the translation block and the inner groove. The reset spring is sleeved on the outside of the vertical rod.

4. A construction pulley for an overhead power transmission line according to claim 3, characterized in that: A lifting rack is provided above the inner groove, and transmission gears are meshed on the front and rear sides of the lifting rack. Top covers are provided on the front and rear sides of the main frame, and the top covers are hinged to the main frame through a hinge wheel. A driven gear is provided on the inner side of the hinge wheel, and the driven gear is meshed with the transmission gear.

5. A construction pulley for an overhead power transmission line according to claim 4, characterized in that: A protrusion is fixedly provided on the outer side of the translation block, a connecting rod is provided on the upper side of the protrusion, and the top end of the connecting rod is fixedly connected to the bottom end of the lifting rack.

6. A construction pulley for an overhead power transmission line according to claim 5, characterized in that: The translation block cooperates with the inner groove, and the translation block can move up and down along the inner groove.

7. A construction pulley for an overhead power transmission line according to claim 6, characterized in that: A clamping frame is provided on the outer surface of the main frame, and the clamping frame limits the connecting rod and the lifting rack.

8. The construction pulley for an overhead power transmission line according to claim 7, characterized in that: The top cover includes a cover plate and a pressing block, the cover plate and the pressing block are connected via a connecting portion, a wire groove is provided at the bottom of the pressing block, a ball is provided inside the wire groove, and the position of the wire groove corresponds to the pulley.

9. A construction pulley for an overhead power transmission line according to claim 8, characterized in that: A buffer groove is provided inside the cover plate along the direction of the wire groove, the connecting portion is movably provided in the middle of the buffer groove, and buffer springs are provided between the front and rear sides of the connecting portion and the buffer groove.

10. The construction pulley for an overhead power transmission line according to claim 9, characterized in that: The connecting portion includes a shell and a connecting head. The connecting head is movably connected to the inside of the shell. A buffer pad is provided between the connecting head and the shell.

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