A winching arrangement

Abstract

The application discloses a winching structure, which comprises a shell, a rope chuck assembly and a mounting base, the rope chuck assembly is enclosed at one end of the shell and a hollow cavity is formed in the interior of the two, and a transmission assembly is arranged in the hollow cavity; the rope chuck assembly at least comprises a rope rotating sleeve, a connecting gear ring and a main shaft support, one end of the main shaft support is tightly connected with the shell, and the main shaft support is arranged in the rope rotating sleeve through a ball bearing; the transmission assembly comprises a central movable shaft, a limiting column, a first gear, a second gear, an auxiliary rotating shaft which is rotatably connected with the main shaft support, and a planetary gear, a first gear and a second gear which are sequentially arranged on the auxiliary rotating shaft, and the planetary gear is meshingly connected with the connecting gear ring. The winching structure of the application can quickly, labor-savingly and controllably wind up the rope through the rotation of the rope rotating sleeve, improves the operation efficiency, and is simple in structure, easy to control and safe and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power auxiliary tools, and particularly relates to a winching structure. BACKGROUND

[0002] In the operation, maintenance, repair and replacement of insulator strings of power transmission lines with a voltage level of 220kV and above, the weight of a string of 220kV insulators is about 100kg, and the weight of a string of 500kV insulators is about 300kg. Currently, the lifting device used for replacing a whole string of insulators mainly uses a motorized winch and a hand-cranked winch. Since most operators are difficult to accurately operate the motorized winch, the hand-cranked winch is more widely used in daily maintenance work.

[0003] The hand-cranked winch currently used has a total weight of about 20kg, and two people are usually required to simultaneously crank the winch during operation. If a whole string of 500kV insulators is to be lifted, a plurality of people are required to rotate the winch for about 20 minutes to lift the insulators to the working position, and the hand-cranked winch can only be installed on a tower, which is time-consuming and laborious. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a winching structure, which can quickly, labor-savingly and controllably wind up the ropes through the rotation of the rope rotating sleeve, and improve the working efficiency. The structure is simple, easy to control, safe and reliable.

[0005] In order to solve the above technical problems, the present application provides a winching structure applied to a lifting device for power maintenance of insulator strings, comprising a housing, a rope clamping disc assembly and a mounting base, the rope clamping disc assembly is enclosed at one end of the housing and a hollow cavity is formed in the interior of the two, a transmission assembly is arranged in the hollow cavity, and the mounting base is connected at the other end of the housing; the rope clamping disc assembly at least comprises a rope rotating sleeve, a connecting gear ring connected with the rope rotating sleeve, and a main shaft support for supporting the transmission assembly, one end of the main shaft support is tightly connected with the housing, and the main shaft support is arranged in the rope rotating sleeve through a ball bearing; the transmission assembly comprises a central movable shaft, a limiting column arranged at one end of the central movable shaft, a first gear and a second gear tightly arranged at the other end of the central movable shaft respectively, an auxiliary rotating shaft rotatably connected with the main shaft support, and a planetary gear, a first gear and a second gear arranged on the auxiliary rotating shaft in sequence, the planetary gear is meshingly connected with the connecting gear ring, wherein: the central movable shaft is driven to move along its axis to switch between the adaptive meshing of the first gear and the first gear, or the adaptive meshing of the second gear and the second gear, the gear radius size of the first gear is larger than that of the second gear, so as to adjust the rotating torque; the central movable shaft is driven to rotate along its axis to synchronously rotate the connecting gear ring and the rope rotating sleeve to pull up the rope; a hexagonal connecting seat is tightly arranged on the limiting column, a main shaft fixing ring is tightly arranged on the hexagonal connecting seat, the main shaft fixing ring is coaxially connected with the main shaft support in a detachable manner, a sleeve is sleeved on the outside of the central movable shaft, the sleeve is fixedly arranged at the center of the main shaft support, and a spring is sleeved on the surface of the central movable shaft between the limiting column and the sleeve; a rotating handle matched with the hexagonal connecting seat is further arranged, wherein: the rotating handle is inserted into the hexagonal connecting seat to rotate the limiting column and the main shaft fixing ring.

[0006] The rope rotating sleeve is in a trumpet shape, a plurality of through holes are arranged at the bottom of the rope rotating sleeve, and the connecting gear ring is arranged at the inner edge of the rope rotating sleeve; a mounting hole corresponding to each through hole is arranged on the surface of the housing, and a self-locking knob plunger is arranged in the mounting hole.

[0007] The bottom of the housing is provided with a clamping groove, wherein: an assembly hole is arranged on the clamping groove, and a fastening bolt is arranged through the assembly hole to tightly fix the mounting base in the clamping groove.

[0008] The end of the central movable shaft is provided with a bolt hole, the bottom of the housing is provided with an adjusting bolt, the adjusting bolt is threadedly connected with the bolt hole in a matched manner, and the adjusting bolt is rotated to drive the central movable shaft to slide along the sleeve.

[0009] The rope clamping disc assembly further comprises a first rope clamping disc, a second rope clamping disc and a rope sliding block.

[0010] The first rope clamping disc and the second rope clamping disc are respectively bolted with the rope rotating sleeve, and the rope sliding block is connected with the main shaft fixing ring.

[0011] The rope slider tail is provided with a rope guide block.

[0012] A dust cover is arranged between the hexagonal connecting seat and the rope slider.

[0013] The winching structure has the following beneficial effects: the winching structure comprises a shell, a winching chuck assembly and a mounting base, the winching chuck assembly is enclosed at one end of the shell and a hollow cavity is formed in the interior of the two, a transmission assembly is arranged in the hollow cavity, and the mounting base is connected at the other end of the shell; the winching chuck assembly at least comprises a rope rotating sleeve, a connecting gear ring connected with the rope rotating sleeve, and a main shaft support for supporting the transmission assembly, one end of the main shaft support is tightly connected with the shell, and the main shaft support is arranged in the rope rotating sleeve through a ball bearing; the transmission assembly comprises a center movable shaft, a limiting column arranged at one end of the center movable shaft, a first gear and a second gear tightly arranged at the other end of the center movable shaft respectively, an auxiliary rotating shaft rotatably connected with the main shaft support, and a planetary gear, a first gear and a second gear arranged on the auxiliary rotating shaft in sequence, and the planetary gear is meshingly connected with the connecting gear ring; by driving the center movable shaft to move along its axis, the first gear and the first gear are adapted to mesh or the second gear and the second gear are adapted to mesh to switch between each other, the gear radius size of the first gear is greater than that of the second gear, and the rotating torque is adjusted; by driving the center movable shaft to rotate along its axis, the connecting gear ring and the rope rotating sleeve are synchronously rotated, the rope is pulled up, the rope is quickly, labor-saving and controllably wound up through the rotation of the rope rotating sleeve, and the operation efficiency is improved; the structure is simple, easy to control, safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0015] Figure 1 It is a whole structure schematic diagram of the winching structure of the embodiment of the present application.

[0016] Figure 2 It is a local blasting structure schematic diagram of the winching structure of the embodiment of the present application.

[0017] Figure 3 It is a structure schematic diagram of the transmission assembly of the winching structure of the embodiment of the present application.

[0018] Figure 4The structural schematic diagram of the shell of the winching structure in the embodiment of the present application. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0020] As Figures 1-4 shown, it is the first embodiment of the winching structure in the present application.

[0021] The winching structure in the embodiment is applied to the lifting device for power maintenance of the insulator string, and comprises a shell 29, a rope chuck assembly and a mounting base 27. The rope chuck assembly is enclosed at one end of the shell 29 and a hollow cavity is formed in the interior of the two, a transmission assembly is arranged in the hollow cavity, and the mounting base 27 is connected at the other end of the shell 29.

[0022] The rope chuck assembly at least comprises a rope rotating sleeve 14, a connecting gear ring 6 connected with the rope rotating sleeve 14, and a main shaft support 5 for supporting the transmission assembly. One end of the main shaft support 5 is tightly connected with the shell 29, and the main shaft support 5 is arranged in the rope rotating sleeve 14 through a ball bearing 4.

[0023] The transmission assembly comprises a center movable shaft 20, a limiting column 3 arranged at one end of the center movable shaft 20, a first gear 12 and a second gear 11 tightly arranged at the other end of the center movable shaft 20 respectively, an auxiliary rotating shaft 7 rotatably connected with the main shaft support 5, and a planetary gear 8, a first gear shift 9 and a second gear shift 10 arranged on the auxiliary rotating shaft 7 in sequence. The planetary gear 8 is meshingly connected with the connecting gear ring 6.

[0024] By driving the center movable shaft 20 to move along its axis, the first gear shift 9 and the first gear 12 are adapted to mesh, or the second gear shift 10 and the second gear 11 are adapted to mesh, so as to switch between them. The gear radius size of the first gear shift 9 is greater than that of the second gear shift 10, so as to adjust the rotating torque.

[0025] By driving the center movable shaft 20 to rotate along its axis, the connecting gear ring 6 and the rope rotating sleeve 14 are synchronously rotated, so as to pull up the rope.

[0026] In the embodiment, the inside of the shell 29 is provided with a planetary gear 8, a first gear 9 and a second gear 10 on both sides through the auxiliary rotating shaft 7. The limiting column 3 is fastened with a hexagonal connecting seat 1, and the limiting column 3 is a hexagonal prism. The outside of the center movable shaft 20 is sleeved with a sleeve 22, and the sleeve 22 is fixed with the center of the main shaft support 5. The center movable shaft 20 is sleeved with a spring 21 on the surface between the limiting column 3 and the sleeve 22.

[0027] The hexagonal connecting seat 1 is fastened with a main shaft fixing ring 2, and the main shaft fixing ring 2 is detachably coaxially connected with the main shaft support 5.

[0028] Further comprising: a rotating handle 26 matched with the hexagonal connecting seat 1, wherein the rotating handle 26 is inserted into the hexagonal connecting seat 1, and the limiting column 3 and the main shaft fixing ring 2 are rotated.

[0029] In the embodiment, the rotating handle 26 is inserted into the inside of the hexagonal connecting seat 1, the main shaft fixing ring 2 is detachably connected with the main shaft support 5, and the two are coaxial. The hexagonal connecting seat 1 and the center movable shaft 20 are installed in the main shaft fixing ring 2 and the main shaft support 5, a bearing is arranged between the center movable shaft 20 and the main shaft support 5, a cross protrusion is arranged at the bottom of the main shaft support 5, a through hole is arranged at the end of the cross protrusion, the through hole on the opposite side is aligned with the threaded hole at the bottom of the shell 29, and the two are fixed and connected through a bolt, and the through hole on the other side is aligned with the threaded hole at the top of the auxiliary rotating shaft 7, and the auxiliary rotating shaft 7 is rotatably arranged.

[0030] Further, the rope rotating sleeve 14 is trumpet-shaped, a plurality of through holes are arranged at the bottom of the rope rotating sleeve 14, the connecting gear ring 6 is arranged at the inner edge of the rope rotating sleeve 14, and the surface of the shell 29 is provided with a mounting hole corresponding to the plurality of through holes.

[0031] Preferably, the end of the center movable shaft 20 is provided with a bolt hole 28, the bottom of the shell 29 is provided with an adjusting bolt 24, the adjusting bolt 24 is threadedly connected with the bolt hole 28 in a matched manner, and the rotating adjusting bolt 24 drives the center movable shaft 20 to slide along the sleeve 22.

[0032] In the embodiment, a bearing is arranged between the bottom of the second gear 11 and the shell 29, the planetary gear 8 is engaged with the gear ring 6, and the main shaft support 5 is sleeved with the rope rotating sleeve 14 outside.

[0033] Further, the bottom of the shell 29 is provided with a clamping groove 23, wherein the clamping groove 23 is provided with an assembly hole 30, and a fastening bolt 25 passes through the assembly hole 30 to fasten the mounting base 27 in the clamping groove 23.

[0034] Preferably, the surface of the mounting base 27 is provided with an inner sliding groove, a lead screw is slidingly arranged inside the inner sliding groove, and a clamping hook plate is threadedly connected to one end of the lead screw. By mounting the mounting base 27 inside the clamping groove 23, the winch can be flexibly mounted and fixed on different types and angles of angle steels.

[0035] Further, the rope clamping disc assembly further comprises a first rope clamping disc 15, a second rope clamping disc 17, and a rope sliding block 18, wherein the first rope clamping disc 15 and the second rope clamping disc 17 are bolted with the rope rotating sleeve 14 respectively, and the rope sliding block 18 is connected with the main shaft fixing ring 2.

[0036] Preferably, the rope sliding block 18 is provided with a rope guide block 16 at the tail.

[0037] Preferably, a dust cover 19 is arranged between the hexagonal connecting seat 1 and the rope sliding block 18.

[0038] In implementation, the first rope clamping disc 15 and the second rope clamping disc 17 are clamped, the first rope clamping disc 15 and the second rope clamping disc 17 are bolted with the rope rotating sleeve 14, and the rope sliding block 18 is bolted with the main shaft fixing ring 2.

[0039] In the winch structure in the embodiment, when the hoisted object is heavy, the hexagonal head of the rotating handle 26 or the electric wrench is inserted into the hexagonal connecting seat 1, so as to drive the limiting column 3 and the main shaft fixing ring 2 to rotate, the main shaft fixing ring 2 drives the first gear 12 to rotate, at this time, the second gear 11 does not contact the second gear 10, the first gear 12 drives the first gear 9 to rotate, and indirectly drives the planetary gear 8 to rotate, the planetary gear 8 acts on the gear ring 6, so as to drive the rope rotating sleeve 14 to rotate, and the rope is wound up and pulled up. At this time, the gear is low, but the torque is large.

[0040] When the hoisted object is light, the adjusting bolt 24 is rotated to drive the central movable shaft 20 to slide downward in the sleeve 22, so that the second gear 11 engages with the second gear 10, at this time, the first gear 12 drives the first gear 9 to disengage. The hexagonal head of the rotating handle 26 or the electric wrench is inserted into the hexagonal connecting seat 1, so as to drive the limiting column 3 and the main shaft fixing ring 2 to rotate, the main shaft fixing ring 2 drives the second gear 11 to rotate, drives the second gear 11 to rotate, and indirectly drives the planetary gear 8 to rotate, the planetary gear 8 acts on the gear ring 6, so as to drive the rope rotating sleeve 14 to rotate, and the rope is wound up and pulled up. At this time, the gear is high, the torque is small, the speed is fast, and the application scenarios are more extensive.

[0041] The winch structure of the present application has the following advantages: the winch structure comprises a housing, a rope chuck assembly and a mounting base, the rope chuck assembly is enclosed at one end of the housing and forms a hollow cavity in the interior of the two, a transmission assembly is arranged in the hollow cavity, and the mounting base is connected to the other end of the housing; the rope chuck assembly comprises at least a rope rotating sleeve, a connecting gear ring connected to the rope rotating sleeve, and a main shaft support for supporting the transmission assembly, one end of the main shaft support is fixedly connected to the housing, and the main shaft support is arranged in the rope rotating sleeve through a ball bearing; the transmission assembly comprises a center movable shaft, a limiting column arranged at one end of the center movable shaft, a first gear and a second gear fixedly connected to the opposite end of the center movable shaft, an auxiliary rotating shaft rotatably connected to the main shaft support, and a planetary gear, a first gear and a second gear arranged on the auxiliary rotating shaft in sequence, the planetary gear is meshingly connected to the connecting gear ring, wherein: the first gear and the first gear are adapted to mesh or the second gear and the second gear are adapted to mesh between the switching of the first gear and the first gear, the gear radius size of the first gear is greater than that of the second gear, and the rotating torque is adjusted; the center movable shaft is driven to move along its axis to rotate the connecting gear ring and the rope rotating sleeve synchronously, the rope is pulled up, the rope is quickly, labor-saving and controllably wound up through the rotation of the rope rotating sleeve, and the work efficiency is improved; the structure is simple, easy to operate, safe and reliable.

Claims

1. A hoisting structure for use in a power maintenance lifting device for an insulator string, characterized in that, The utility model provides a kind of rope winding device, including: Housing, rope winding chuck assembly and mounting base, the rope winding chuck assembly is enclosed in one end of the housing and forms hollow cavity inside both, transmission assembly is installed in the hollow cavity, the mounting base is connected in the opposite end of the housing; The rope winding chuck assembly at least includes: rope rotating sleeve, connecting gear ring connected with the rope rotating sleeve and main shaft support for supporting the transmission assembly, one end of the main shaft support is fastened to the housing, the main shaft support is installed in the rope rotating sleeve by ball bearing; The transmission assembly includes: center movable shaft, limiting column installed in one end of the center movable shaft, first gear and second gear fastened in the opposite end of the center movable shaft respectively, rotatable auxiliary rotating shaft connected on the main shaft support and planetary gear, first gear and second gear installed on the auxiliary rotating shaft in turn, the planetary gear is meshed with the connecting gear ring, wherein: By driving the center movable shaft to move along its axis, switch between the first gear and the first gear adaptive meshing, or the second gear and the second gear adaptive meshing, the gear radius size of the first gear is greater than the gear radius size of the second gear, to adjust the rotating torque; By driving the center movable shaft to rotate along its axis, the connecting gear ring and the rope rotating sleeve are synchronously rotated, and the rope is pulled up; The limiting column is fastened with a hexagonal connector, the hexagonal connector is fastened with a main shaft fixing ring, the main shaft fixing ring is detachably coaxially connected with the main shaft support, the outside of the center movable shaft is sleeved with a sleeve, the sleeve is fixed with the center of the main shaft support, the surface of the center movable shaft between the limiting column and the sleeve is sleeved with a spring; It also includes a rotating handle matched with the hexagonal connector, wherein: the rotating handle is inserted into the hexagonal connector, and the limiting column and the main shaft fixing ring are rotated.

2. The winching arrangement of claim 1, wherein, The rope rotating sleeve is trumpet-shaped, and a plurality of through holes are provided at the bottom of the rope rotating sleeve, and the connecting gear ring is installed at the inner edge of the rope rotating sleeve. A plurality of mounting holes corresponding to the through holes are provided on the surface of the housing, and a self-locking knob plunger is installed in the mounting hole.

3. The winching arrangement of claim 1, wherein, The bottom of the housing is provided with a clamping groove, wherein: the clamping groove is provided with an assembly hole, and a fastening bolt passes through the assembly hole to fasten the mounting base in the clamping groove.

4. The winching arrangement of claim 1, wherein, The end of the center movable shaft is provided with a bolt hole, and the bottom of the housing is provided with an adjusting bolt, the adjusting bolt is threadedly connected with the bolt hole, wherein: rotating the adjusting bolt makes the center movable shaft slide along the sleeve.

5. The winching arrangement of claim 1, wherein, The rope winding chuck assembly further includes a first rope winding chuck, a second rope winding chuck and a rope sliding block, wherein: the first rope winding chuck and the second rope winding chuck are bolted with the rope rotating sleeve respectively, and the rope sliding block is connected with the main shaft fixing ring.

6. The winching arrangement of claim 5, wherein, The tail of the rope sliding block is provided with a rope guide block.

7. The winching arrangement of claim 5, wherein, A dust cover is provided between the hexagonal connector and the rope sliding block.

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