Insulator main line lifting device

Abstract

The application provides an insulator main line lifting device, and relates to the technical field of live working of power distribution networks. The insulator main line lifting device comprises a frame and an anti-deflection clamping mechanism. An insulating cross beam and a lifting mechanism are installed on the frame. The anti-deflection clamping mechanism comprises a mounting seat, a linear translation driving assembly, a fixed clamping block and an anti-deflection locking clamping block assembly. The mounting seat is fixed to the frame. The linear translation driving assembly and the fixed clamping block are fixed to the mounting seat. The anti-deflection locking clamping block assembly comprises a movable block, a floating block and a longitudinal spring. When the movable block rises relative to the floating block, the movable block slides upward along the inclined surface that is combined with the floating block, so as to press the floating block to one side of the fixed clamping block. The anti-deflection clamping mechanism is designed. The self-adaptive clamping effect on the cross arm can be generated according to the movement trend of the overall lateral tilting of the insulator main line lifting device. The effect that the greater the lateral force is, the tighter the clamping is achieved. The anti-lateral tilting stability and the operation safety of the device are effectively enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of live working of power distribution networks, and in particular to an insulator main line lifting device. BACKGROUND

[0002] In a power distribution network, a cross arm is an important component of a tower, and its function is to install insulators and fittings to support conductors and ground wires and to keep them at a certain safety distance. When it is necessary to replace insulators, an insulator main line lifting tool is used to lift the main line of the insulators to reserve space for replacing the insulators.

[0003] The existing insulator main line lifting device mainly includes a manual lifting device and an electric lifting device.

[0004] The manual lifting device needs an operator to hold an insulating clamping rod to clamp the lifting device, accurately place the lifting device at the cross arm working position, and provide external power to tighten the bolts of the clamping mechanism at the bottom of the lifting device to clamp the cross arm. A lifting mechanism is arranged on the lifting device, and the operator controls the lifting mechanism to rise and fall by rotating the external connecting ring of the lifting mechanism. This lifting device needs the operator to hold the insulating rod clamping device and place it on the cross arm, and the operator needs to use a wrench to tighten the bolts to fix the insulating rod clamping device on the cross arm. A large torque is required to ensure firm fixation, and the operator needs to manually rotate the connecting ring during lifting. Since the working environment is in the air, this operation method has high requirements for the operator, the operation process is relatively complicated, and the working time is too long.

[0005] To improve the work efficiency, at present, an electric lifting device is mainly used for insulator main line lifting work. The electric lifting device is provided with a lifting mechanism, an insulating beam provided with a main line supporting groove, and a clamping structure for clamping the cross arm. The electric lifting device is connected to the end tool of the mechanical arm through a connecting structure, and the mechanical arm provides power to make the electric lifting device realize various movements.

[0006] However, the existing electric lifting device still has some problems, including:

[0007] (1) The clamping structure for clamping the cross arm and the cross arm are simply rigidly connected. When the insulator main line lifting work is performed, as the height of the main line being lifted becomes higher and higher, the downward lateral load force borne by the main line lifting device as a whole becomes larger under the pressure of the main line, which easily causes the risk of tilting or even toppling of the main line lifting device;

[0008] (2) When the main line lifting device is removed from the cross arm, the joint of the mechanical arm end tool needs to be precisely connected with the connection structure of the lifting device, and the process of connecting the joint of the mechanical arm end tool with the connection structure requires high motion precision of the mechanical arm, and the risk of high-altitude falling may exist in the process of mis-touching;

[0009] (3) In the process of replacing the insulator, the main line is easily mis-touched, which causes the main line to be accidentally separated from the main line supporting groove inside the insulating beam;

[0010] (4) When the weight of the lifted main line exceeds the rated load capacity of the main line lifting device, the device may be unstable or the insulating beam may slide down due to insufficient bearing capacity;

[0011] (5) The lifting stroke of the existing main line lifting device is a fixed value, which cannot be adjusted according to the actual working condition, resulting in insufficient adaptability when dealing with different specifications and heights of insulators, and obvious application limitations exist. SUMMARY

[0012] The purpose of the present application is to provide an insulator main line lifting device to alleviate at least one of the above technical problems in the prior art.

[0013] To achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

[0014] The embodiments of the present application provide an insulator main line lifting device, comprising:

[0015] A frame is installed with an insulating beam and a lifting mechanism for driving the lifting of the insulating beam, and the free end of the insulating beam is provided with a main line supporting groove;

[0016] An anti-deflection clamping mechanism includes a mounting seat, a linear translation driving assembly, a fixed clamping block and an anti-deflection locking clamping block assembly;

[0017] The mounting seat is fixed to the frame, and the linear translation driving assembly and the fixed clamping block are fixed to the mounting seat;

[0018] The anti-deflection locking clamp block assembly comprises a movable block, a floating block and a longitudinal spring; along the translation direction of the linear translation driving assembly, the movable block and the fixed clamp block are separately arranged at two ends of the linear translation driving assembly, and the movable block is fixedly connected with the execution end of the linear translation driving assembly; the floating block is arranged on the side of the movable block facing the fixed clamp block, and the side surfaces of the floating block and the movable block facing each other are both inclined surfaces; the longitudinal spring is arranged between the floating block and the movable block, and one end of the longitudinal spring is fixedly connected with the floating block, and the other end of the longitudinal spring is fixedly connected with the movable block; when the longitudinal spring is in a free state, the inclined surfaces of the floating block and the movable block facing each other are matched with each other; when the movable block rises relative to the floating block, the movable block slides upward along the inclined surface matched with the floating block to press the floating block on one side of the fixed clamp block.

[0019] In an optional embodiment, the inclined surfaces of the movable block and the floating block facing each other are both provided with assembly grooves, and the longitudinal spring is arranged in the assembly grooves.

[0020] In an optional embodiment, a transverse limiting assembly is further arranged between the movable block and the floating block.

[0021] The transverse limiting assembly comprises a limiting rod and a head end limiting part and a tail end limiting part connected with two ends of the limiting rod respectively.

[0022] The floating block is provided with a mounting hole penetrating in the horizontal direction, the limiting rod penetrates through the mounting hole, and the tail end limiting part is blocked on the side of the floating block away from the movable block.

[0023] The movable block is provided with a limiting hole extending in the vertical direction, the limiting rod penetrates through the limiting hole, and the head end limiting part is limited on the side of the movable block away from the floating block; or, the movable block is provided with a limiting groove extending in the vertical direction, the head end limiting part is limited in the limiting groove and can slide along the limiting groove.

[0024] In an optional embodiment, a stepped inclined block is arranged on the side surface of the fixed clamp block facing the floating block, the stepped inclined block is located below the linear translation driving assembly, and the side surface of the stepped inclined block facing the floating block is a stepped inclined surface with a longitudinal upper middle region protruding towards the floating block, the stepped inclined surface comprises an upper inclined surface, a middle flat surface and a lower inclined surface.

[0025] In an optional embodiment, a transverse supporting rod is further connected between the fixed clamp block and the movable block, one end of the transverse supporting rod is fixedly connected with the fixed clamp block, and the movable block is slidingly connected with the transverse supporting rod.

[0026] In an optional embodiment, the anti-deflection clamping mechanism is fixedly connected with the frame through a quick release structure.

[0027] The quick release structure comprises:

[0028] A quick release module is located above the fixed clamping block and the movable block and is fixedly connected with the fixed clamping block or the mounting seat. The quick release module comprises a connecting frame and at least two quick mounting clamping blocks fixedly connected with the connecting frame. A dovetail groove is arranged on the top surface of each quick mounting clamping block and penetrates the quick mounting clamping block in the transverse direction. A threaded hole is arranged on the side surface of the quick mounting clamping block.

[0029] A dovetail-shaped boss is arranged on the bottom surface of the frame and is embedded in the dovetail groove.

[0030] A hand screw is threadedly connected with the threaded hole to block the dovetail-shaped boss from sliding out of the dovetail groove in the transverse direction.

[0031] In an optional embodiment, the anti-deflection clamping mechanism further comprises a transverse limit switch and a transverse limit detection sheet.

[0032] The transverse limit switch is electrically connected or signal-connected with the driving part of the linear translation driving assembly.

[0033] In the translation direction of the linear translation driving assembly, the transverse limit switch is installed at the end of the connecting frame away from the fixed clamping block, and the transverse limit detection sheet is fixedly connected with the movable block. When the movable block is translated to a preset position away from the fixed clamping block, the transverse limit detection sheet can trigger the transverse limit switch to stop the driving part of the linear translation driving assembly from driving the execution end to continue moving in the original direction.

[0034] In an optional embodiment, the anti-deflection clamping mechanism further comprises a connecting mechanism for clamping the end tool of a mechanical arm. The connecting mechanism comprises an I-shaped chuck and a protective frame.

[0035] The I-shaped chuck is fixedly connected with the mounting seat, and the protective frame is fixedly connected with the mounting seat and arranged on one side of the I-shaped chuck.

[0036] In an optional embodiment, the end of the insulating cross beam away from the lifting mechanism is further provided with a wire locking mechanism. The wire locking mechanism comprises a movable arm, a pressing sheet and a torsional spring.

[0037] One end of the movable arm is rotatably connected to one side of the main wire supporting groove through a transverse rotating shaft, the top surface of which is provided with a mounting groove, the pressing plate is fixed to the top of the mounting groove, the torsion spring is wound around the transverse rotating shaft, one end of which is inserted into the inside of the mounting groove and abuts against the bottom of the pressing plate, and the other end abuts against the outer side wall of the insulating cross beam.

[0038] The torsion spring is configured to shield the top opening of the main wire supporting groove when the movable arm is in a free state, and to be elastically deformed when the movable arm is subjected to upward or downward pressure, so as to allow the main wire to enter or exit the main wire supporting groove.

[0039] In an optional embodiment, the lifting mechanism further comprises a lower limit switch, which is located below the insulating cross beam and fixed to the frame; the lower limit switch is electrically or signal connected with the driving part of the lifting mechanism.

[0040] A lower position detection sheet is arranged on the lower surface of the insulating cross beam near one end of the lifting mechanism, when the insulating cross beam is lowered to a predetermined position, the lower position detection sheet can trigger the lower limit switch, so that the driving part of the lifting mechanism stops driving the driving end to continue to descend.

[0041] In particular, in the content of the present application, the above-mentioned "and / or" means that the structure before "and / or" and the structure after "and / or" are arranged simultaneously or alternatively.

[0042] The insulator main wire lifting device provided by the embodiment of the present application clamps the cross arm by using the linear translation driving assembly, the linear translation driving assembly generally adopts a motor screw nut transmission pair or a cylinder (or a hydraulic cylinder) piston rod assembly, compared with manual bolt fixing, can realize automatic control, the clamping process is simple and convenient, the operation requirement of the operator is lower, is favorable for reducing labor cost, improving operation efficiency and improving operation safety.

[0043] More importantly, the anti-deflection clamping mechanism designed in the embodiment can produce self-adaptive clamping effect on the cross arm with the movement trend of the overall lateral inclination of the insulator main line lifting device, so as to realize the effect that the greater the lateral force, the tighter the clamping, and enhance the clamping reliability of the cross arm. Specifically, the floating block and the fixed clamping block jointly constitute the clamping surface, which can stably clamp the cross arm in the initial state; in the process of starting the lifting mechanism to drive the insulating cross beam to rise and thus lift the main line upward, as the height of the main line being lifted is higher and higher, the lateral force of the overall insulator main line lifting device increases under the pressure of the main line, and the floating block and the fixed clamping block clamp the cross arm, and there is a large friction between the floating block and the fixed clamping block and the cross arm respectively. The lateral force will make the movable block rise relative to the floating block by overcoming the elastic force of the longitudinal spring, and in the moving process, the movable block slides upward along the inclined surface combined with the floating block as a wedge-shaped movement, which can extrude the floating block to one side of the fixed clamping block, so as to further lock the cross arm by the floating block and the fixed clamping block, and form a positive feedback effect that the greater the lateral force, the tighter the clamping, so as to inhibit the lateral inclination trend of the overall insulator main line lifting device, thereby effectively enhancing the anti-lateral inclination stability and operation safety of the insulator main line lifting device.

[0044] In addition, the embodiment of the present application also provides a plurality of optional implementation manners, and the specific structure and functional effects of these optional implementation manners will be introduced and described in detail in the specific embodiment part of the specification. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0046] Figure 1 The overall structure of the insulator main line lifting device provided by the embodiment of the present application is shown in the axonometric view;

[0047] Figure 2 In the insulator main line lifting device provided by the embodiment of the present application, the assembly structure of the frame, the lifting mechanism and the insulating cross beam is shown in the schematic view;

[0048] Figure 3 In the insulator main line lifting device provided by the embodiment of the present application, the overall structure of the insulating cross beam is shown in the axonometric view;

[0049] Figure 4 In the insulator main line lifting device provided by the embodiment of the present application, the overall structure of the anti-deflection clamping mechanism is shown in the axonometric view;

[0050] Figure 5The overall structure of the anti-deflection clamping mechanism is partially shown in a sectional view.

[0051] Figure 6 The anti-deflection clamping mechanism clamps the cross arm in the insulator main line lifting device provided by the embodiment of the application.

[0052] Icon: 1-frame;

[0053] 2-lifting mechanism; 21-vertical beam; 22-linear guide rail; 23-sliding block; 24-screw nut connecting block; 25-top fixed plate; 26-top bearing; 27-bottom bearing; 28-longitudinal screw; 29-coupling; 210-lifting motor; 211-lower limit switch;

[0054] 3-insulating cross beam; 31-main line bearing groove; 32-lower detection sheet; 33-moving arm; 34-pressing sheet; 35-torsional spring; 36-transverse rotating shaft; 37-strengthening bolt;

[0055] 4-anti-deflection clamping mechanism; 41-mounting seat; 42-linear translation driving assembly; 421-clamping motor; 422-transverse screw; 423-transverse support rod; 43-fixed clamping block; 44-anti-deflection locking clamping block assembly; 441-moving block; 442-floating block; 443-longitudinal spring; 45-step inclined block; 46-I-shaped clamp; 47-protection frame; 48-transverse limit switch; 49-transverse limit detection sheet;

[0056] 5-quick release structure; 51-quick release module; 511-connection frame; 512-quick release clamping block; 52-dove tail groove; 53-threaded hole; 54-dove tail boss; 55-hand screw;

[0057] 6-power module;

[0058] 7-cross arm. DETAILED DESCRIPTION

[0059] To make the purpose, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some embodiments of the application, rather than all the embodiments. The components of the embodiments of the application described and shown in the drawings can be arranged and designed in various different configurations.

[0060] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the application without creative labor fall within the scope of the application.

[0061] It should be noted that similar reference numerals and letters refer to similar items throughout the drawings, and thus, once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0062] In the description of the application, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0063] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0064] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between the two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0065] Some embodiments of the application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0066] The present embodiment provides an insulator main line lifting device, referring to Figures 1 to 5 The insulator main line lifting device comprises a frame 1 and an anti-deflection clamping mechanism 4.

[0067] Specifically, the frame 1 is provided with an insulating beam 3 and a lifting mechanism 2 for driving the insulating beam 3 to lift, and a main line supporting groove 31 is arranged at a free end of the insulating beam 3. The anti-deflection clamping mechanism 4 comprises a mounting seat 41, a linear translation driving assembly 42, a fixed clamping block 43 and an anti-deflection locking clamping block assembly 44; the mounting seat 41 is fixed to the frame 1; the linear translation driving assembly 42 and the fixed clamping block 43 are fixed to the mounting seat 41; the anti-deflection locking clamping block assembly 44 comprises a movable block 441, a floating block 442 and a longitudinal spring 443; along the translation direction of the linear translation driving assembly 42, the movable block 441 and the fixed clamping block 43 are separately arranged at two ends of the linear translation driving assembly 42, and the movable block 441 is fixedly connected with an execution end of the linear translation driving assembly 42; the floating block 442 is arranged at a side of the movable block 441 facing the fixed clamping block 43, and the side surfaces of the floating block 442 and the movable block 441 facing each other are both inclined surfaces; the longitudinal spring 443 is arranged between the floating block 442 and the movable block 441, and one end of the longitudinal spring 443 is fixedly connected with the floating block 442 and the other end is fixedly connected with the movable block 441; when the longitudinal spring 443 is in a free state, the inclined surfaces of the floating block 442 and the movable block 441 facing each other are matched with each other; when the movable block 441 rises relative to the floating block 442, the movable block 441 slides upward along the inclined surface matched with the floating block 442 to press the floating block 442 to one side of the fixed clamping block 43.

[0068] In use, the bottom of the frame 1 or the bottom of the mounting seat 41 is further connected with a connecting mechanism, a mechanical arm end tool of a robot clamps the connecting mechanism, the insulator main line lifting device is moved to a cross arm working position, the main line on the insulator falls into the main line supporting groove 31 arranged at the free end of the insulating beam 3, the cross arm is located between the fixed clamping block 43 and the anti-deflection locking clamping block assembly 44, specifically between the fixed clamping block 43 and the floating block 442, the linear translation driving assembly 42 is started to drive the anti-deflection locking clamping block assembly 44 to move to one side of the fixed clamping block 43 until the cross arm is clamped by the fixed clamping block 43 and the floating block 442, and after the clamping is completed, the mechanical arm end tool releases the insulator main line lifting device.

[0069] Then, the lifting mechanism 2 is started to drive the insulating beam 3 to lift, so as to lift the main line upward and replace the insulator; after the insulator is replaced, the lifting mechanism 2 is started to drive the insulating beam 3 to descend, in the descending process, the main line is separated from the main line supporting groove 31 arranged at the free end of the insulating beam 3, so that the main line falls on the new insulator, and the insulator replacement work is completed;

[0070] After the work is completed, the mechanical arm end tool of the robot clamps the connecting mechanism again, the linear translation driving assembly 42 is started to drive the anti-deflection locking clamping block assembly 44 to move to a side away from the fixed clamping block 43, the cross arm is released, the insulator main line lifting device is taken off from the cross arm by the mechanical arm, and the whole work process is completed.

[0071] The insulator main line lifting device provided by the embodiment can clamp the cross arm by using the linear translation driving assembly 42, and the linear translation driving assembly 42 generally adopts a motor screw nut transmission pair or a cylinder (or a hydraulic cylinder) piston rod assembly. Compared with manual bolt tightening, the linear translation driving assembly 42 can realize automatic control, the clamping process is simple and convenient, the operation requirement of the operator is low, and the insulator main line lifting device is favorable for reducing labor cost, improving work efficiency and improving work safety.

[0072] More importantly, the anti-deflection clamping mechanism 4 can generate a self-adaptive clamping effect on the cross arm according to the movement trend of the overall insulator main line lifting device, so as to realize the effect that the greater the lateral force is, the tighter the clamping is, and to enhance the clamping reliability of the cross arm. Specifically, the floating block 442 and the fixed clamping block 43 jointly constitute a clamping surface, and the cross arm can be stably clamped in the initial state; in the process of starting the lifting mechanism 2 to drive the insulating cross beam 3 to rise and thus lift the main line upward, as the height of the main line being lifted is higher and higher, the lateral force on the overall insulator main line lifting device increases under the pressure of the main line, and the floating block 442 and the fixed clamping block 43 clamp the cross arm, and there is a large friction force between the floating block 442 and the fixed clamping block 43 and the cross arm. The lateral force will make the movable block 441 overcome the elastic force of the longitudinal spring 443 and rise relative to the floating block 442. In the moving process, the movable block 441 slides upward along the inclined surface that is spliced with the floating block 442, and performs a wedge-shaped movement, can extrude the floating block 442 to one side of the fixed clamping block 43, so that the floating block 442 and the fixed clamping block 43 further lock the cross arm, and a positive feedback effect that the greater the lateral force is, the tighter the clamping is, is formed, the lateral inclination trend of the overall insulator main line lifting device is inhibited, and thus the anti-lateral inclination stability and work safety of the insulator main line lifting device are effectively enhanced.

[0073] In the embodiment, the longitudinal spring 443 can be connected to any side surface of the movable block 441 and the floating block 442. For example, the longitudinal spring 443 can be connected to the side surface of the movable block 441, and the side surface of the floating block 442 is not connected to the longitudinal spring 443. Figure 4 and Figure 5 When the longitudinal spring 443 is installed on the inclined surface that faces each other of the movable block 441 and the floating block 442, the longitudinal spring 443 is arranged in the assembly groove on the inclined surface that faces each other of the movable block 441 and the floating block 442. This design not only ensures the smooth splicing between the inclined surfaces of the movable block 441 and the floating block 442 when they slide relative to each other, but also improves the uniform distribution of the clamping force and enhances the self-adaptive ability of the clamping mechanism. At the same time, the design optimizes the compactness of the structure, reduces the interference between components, and improves the stability and reliability of the overall device.

[0074] Further, in the optional embodiment of the present embodiment, a transverse limiting assembly is further arranged between the movable block 441 and the floating block 442, which comprises a limiting rod and a head-end limiting part and a tail-end limiting part respectively connected to two ends of the limiting rod. Specifically, the floating block 442 is provided with a mounting hole penetrating in the horizontal direction, the limiting rod penetrates through the mounting hole, and the tail-end limiting part is blocked on the side of the floating block 442 away from the movable block 441. On this basis, further: in some optional assembly modes, the movable block 441 is provided with a limiting hole extending in the vertical direction, the limiting rod penetrates through the limiting hole, and the head-end limiting part is limited on the side of the movable block 441 away from the floating block 442; in other optional assembly modes, the movable block 441 is provided with a limiting slot extending in the vertical direction, the head-end limiting part is limited in the limiting slot and can slide along the limiting slot (at this time, the limiting slot can be provided with a blocking edge extending to the inside of the opening on both sides of the opening to cooperate with the head-end limiting part to prevent the head-end limiting part from coming out).

[0075] In the transverse limiting assembly, the bolt and the nut can be used, the rod part of the bolt is the limiting rod, the bolt cap of the bolt is the head-end limiting part, and the nut is the tail-end limiting part; or a flat head screw and a nut are used, the rod part of the flat head screw is the limiting rod, the nail cap of the flat head screw is the head-end limiting part, and the nut is the tail-end limiting part; or a limiting pin and a split pin arranged at two ends of the limiting pin are used; or a stud and a nut threaded at two ends of the stud are used; or other structural forms are used to combine the components as the transverse limiting assembly.

[0076] In the optional embodiment, by arranging the transverse limiting assembly, the movement direction of the relative movement between the movable block 441 and the floating block 442 can be limited, and unnecessary lateral movement of the floating block 442 is avoided when the movable block 441 rises relative to the floating block 442, so as to ensure effective transmission of the clamping force of the floating block 442 and the fixed clamping block 43 to the cross arm, ensure that the clamping force of the floating block 442 and the fixed clamping block 43 to the cross arm gradually increases, realize the effect of "the tighter the more clamped", and enhance the overall anti-deflection ability of the device.

[0077] Referring to Figure 5 and Figure 6In an optional embodiment of the present embodiment, the fixed clamping block 43 is provided with a stepped inclined block 45 on one side surface thereof facing the floating block 442, the stepped inclined block 45 is located below the linear translation driving assembly 42, and the stepped inclined block 45 is provided with a stepped inclined surface on one side surface thereof facing the floating block 442, the stepped inclined surface includes an upper inclined surface, a middle flat surface and a lower inclined surface. The one side surface of the cross arm 7 is generally designed as a concave surface, and the design of the present optional embodiment can guide and limit the edge of the concave side of the cross arm 7 when the cross arm 7 is clamped between the floating block 442 and the fixed clamping block 43, and the edge of the concave side of the cross arm 7 is clamped between the upper inclined surface of the stepped inclined block 45, the linear translation driving assembly 42 and the one side surface of the floating block 442 facing the fixed clamping block 43, thereby further improving the clamping stability of the cross arm. The upper inclined surface, the middle flat surface and the lower inclined surface of the stepped inclined block 45 can guide the directional movement of the cross arm during clamping to prevent the cross arm from deviating or slipping during clamping.

[0078] In particular, in the present embodiment, the linear translation driving assembly 42 has various optional structural design forms, for example but not limited to, as shown in Figure 4 and Figure 5 The linear translation driving assembly 42 includes a clamping motor 421 and a transverse lead screw 422, the fixed clamping block 43 is fixedly connected to the mounting seat 41, and the fixed clamping block 43 is sleeved and fixedly connected to one end of the transverse lead screw 422, the transverse lead screw 422 is externally sleeved with a ball screw nut, and the movable block 441 is fixedly connected to the ball screw nut.

[0079] Further optionally, a transverse support rod 423 is further connected between the fixed clamping block 43 and the movable block 441, one end of the transverse support rod 423 is fixedly connected with the fixed clamping block 43, and the movable block 441 is slidingly connected with the transverse support rod 423 to increase the driving stability during translation.

[0080] In an optional embodiment of the present embodiment, the anti-deflection clamping mechanism 4 is fixedly connected with the frame 1 through the quick release structure 5; the quick release structure 5 includes a quick release module 51, a dovetail boss 54 and a hand screw 55. Specifically, the quick release module 51 is located above the fixed clamping block 43 and the movable block 441 and is fixedly connected with the fixed clamping block 43 or the mounting seat 41, the quick release module 51 includes a connecting frame 511 and at least two quick mounting clamping blocks 512 fixedly connected with the connecting frame 511, a dovetail groove 52 is provided on the top surface of each quick mounting clamping block 512 and extends through the quick mounting clamping block 512 in the transverse direction, and a threaded hole 53 is provided on the side surface of the quick mounting clamping block 512; the dovetail boss 54 is provided on the bottom surface of the frame 1 and is embedded in the dovetail groove 52; and the hand screw 55 is threadedly connected with the threaded hole 53 to block the dovetail boss 54 from sliding out of the dovetail groove 52 in the transverse direction.

[0081] In this optional embodiment, the dovetail-shaped boss 54 is embedded in the dovetail-shaped groove 52, and the hand screw 55 is screwed with the threaded hole 53 to prevent the dovetail-shaped boss 54 from sliding out of the dovetail-shaped groove 52 horizontally. This design ensures stable connection between the anti-deflection clamping mechanism 4 and the frame 1, and also allows quick disassembly and assembly between them. By designing the quick-release structure 5, a modular assembly structure is formed between the anti-deflection clamping mechanism 4 and the frame 1, so that the operator can quickly replace the frame 1 with different insulating cross beams 3 for the anti-deflection clamping mechanism 4 according to the actual working conditions, thereby effectively adapting to insulators of different specifications and heights. This design realizes universality and adaptability while avoiding the extension of the operation cycle caused by replacement, which is beneficial to improving the operation efficiency and application flexibility.

[0082] In the optional embodiment of the present embodiment, the anti-deflection clamping mechanism 4 further comprises a lateral limit switch 48 and a lateral limit detection piece 49. The lateral limit switch 48 is electrically or signal connected with the driving part of the linear translation driving assembly 42. Along the translation direction of the linear translation driving assembly 42, the lateral limit switch 48 is installed at the end of the connecting frame 511 away from the fixed clamp block 43, and the lateral limit detection piece 49 is fixedly connected with the movable block 441. When the movable block 441 translates to the preset position away from the fixed clamp block 43, the lateral limit detection piece 49 can trigger the lateral limit switch 48 to stop the driving part of the linear translation driving assembly 42 from driving the execution end to continue moving in the original direction, thereby realizing accurate position control.

[0083] By setting the lateral limit switch 48 and the lateral limit detection piece 49, the present optional embodiment can effectively prevent the movable block 441 from exceeding the predetermined range during translation. This design can automatically stop driving when reaching the preset position, thereby protecting the linear translation driving assembly 42 and its related components from overload or collision damage and improving the operation safety.

[0084] In an optional embodiment of the present embodiment, the anti-deflection clamping mechanism 4 further comprises a connecting mechanism for clamping the end tool of the mechanical arm, which comprises a I-shaped chuck 46 and a protective frame 47. The I-shaped chuck 46 is fixedly connected with the mounting base 41, and the protective frame 47 is fixedly connected with the mounting base 41 and arranged on one side of the I-shaped chuck 46. In use, the end tool of the mechanical arm clamps the I-shaped chuck 46, and the clamping connection is simple and reliable in operation. In high-altitude operation, the robot can quickly replace the tool, which reduces the dependence on the absolute positioning accuracy of the robot, thereby significantly shortening the operation time required for replacing the tool and improving the operation efficiency and reliability. At the same time, the protective frame 47 can provide lateral support between the insulator main line lifting device and the mechanical arm after the end tool of the mechanical arm clamps the I-shaped chuck 46, and provide lateral support between the cross arm and the insulator main line lifting device after clamping onto the cross arm, thereby playing a certain protective role and further improving the anti-tilting risk of the insulator main line lifting device.

[0085] In an optional embodiment of the present embodiment, the end of the insulating cross beam 3 away from the lifting mechanism 2 is further provided with a wire locking mechanism, which comprises a movable arm 33, a pressing piece 34 and a torsional spring 35. One end of the movable arm 33 is rotatably connected to one side of the main line supporting groove 31 through a transverse rotating shaft 36, the top surface of which is provided with a mounting groove, the pressing piece 34 is fixed to the top of the mounting groove, and the torsional spring 35 is wound around the transverse rotating shaft 36, one end of which is inserted into the inside of the mounting groove and abuts against the bottom of the pressing piece 34, and the other end abuts against the outer side wall of the insulating cross beam 3. The torsional spring 35 is configured to shield the top opening of the main line supporting groove 31 with the movable arm 33 in a free state, and to elastically deform when the movable arm 33 is subjected to upward or downward pressure, so as to allow the main line to enter and exit the main line supporting groove 31.

[0086] In the present optional embodiment, the two ends of the torsional spring 35 are free ends allowing elastic deflection in both upward and downward directions, so that the movable arm 33 is turned over under the action of the downward pressure or upward ejection force of the main line when the main line is pressed downward into or ejected upward out of the main line supporting groove 31, so as to allow the main line to smoothly enter and exit the main line supporting groove 31, and the movable arm 33 automatically restores to shield the top opening of the main line supporting groove 31 after the main line passes. By designing the wire locking mechanism, the present optional embodiment can prevent the main line from accidentally detaching from the main line supporting groove 31 when the main line is accidentally touched during the operation of replacing the insulator, thereby reducing the operation difficulty, improving the operation efficiency and safety and reliability.

[0087] In addition, in the present embodiment, the lifting mechanism 2 has various optional structural design forms, for example but not limited to, in some optional embodiments of the present embodiment, such as Figure 1 and Figure 2As shown, the lifting mechanism 2 comprises a vertical beam 21, a screw-nut connecting block 24, a longitudinal screw 28 and a lifting motor 210; the vertical beam 21 is fixedly connected to the top of the frame 1, a top fixed plate 25 is fixedly connected to the top of the vertical beam 21, the longitudinal screw 28 extends in the vertical direction, and the top end of the longitudinal screw 28 is rotatably installed on the top fixed plate 25 through a top bearing 26, the bottom end of the longitudinal screw 28 is rotatably installed on the frame 1 through a bottom bearing 27, the bottom end of the longitudinal screw 28 is in driving connection with the driving shaft of the lifting motor 210 fixed on the frame 1 through a shaft coupling 29, the screw-nut connecting block 24 is connected to the longitudinal screw 28 to form a screw-nut driving pair with the longitudinal screw 28, meanwhile, a linear guide rail 22 is arranged on one side of the vertical beam 21, and a sliding block 23 is slidably connected to the linear guide rail 22, and the screw-nut connecting block 24 is fixedly connected to the sliding block 23. Figure 3 As shown, the screw-nut connecting block 24 is fixedly connected to the other end of the main line supporting groove 31 opposite to one end of the main line supporting groove 31 of the insulation cross beam 3. The longitudinal screw 28 is driven to rotate by the lifting motor 210 through the shaft coupling 29, and under the guidance of the linear guide rail 22 and the sliding block 23, the screw-nut connecting block 24 moves up and down along the longitudinal screw 28, thereby driving the insulation cross beam 3 to lift.

[0088] The lifting mechanism 2 provided by the optional embodiment can realize flexible design of lifting stroke according to actual working conditions, and meet the adaptability to insulators of different specifications and heights.

[0089] The screw-nut connecting block 24 is connected to the longitudinal screw 28 to form a screw-nut driving pair with the longitudinal screw 28, and the specific connection mode includes but is not limited to that the two form a ball screw-nut driving pair, or the longitudinal screw 28 is an axle rod with trapezoidal thread, the screw-nut connecting block 24 is internally processed with a trapezoidal threaded hole 53 matched with the screw, and the two are assembled to form a sliding screw driving mechanism. When the longitudinal screw 28 rotates, the screw-nut connecting block 24 is restricted from rotating and moves linearly along the axial direction of the longitudinal screw 28. Preferably, the longitudinal screw 28 is an axle rod with trapezoidal thread, the screw-nut connecting block 24 is internally processed with a trapezoidal threaded hole 53 matched with the screw, and the two are assembled to form a sliding screw driving mechanism. Due to the fact that the friction angle is greater than the helix angle, the structure can automatically lock the position when power is off or driving is stopped. When the lifting weight exceeds the rated load, the self-locking function can be used to prevent the lifted insulation cross beam 3 from accidentally sliding down, thereby ensuring the safety and reliability of the operation.

[0090] The fixed connection mode of the screw-nut connecting block 24 and the end of the insulation cross beam 3 includes but is not limited to connection through screws or bolts, welding or other fixed connection modes, for example, Figure 3As shown, a clamping groove is arranged at the end of the insulating cross beam 3, and the screw nut connecting block 24 is clamped and fixed in the clamping groove. Further, in order to increase the structural strength of the insulating cross beam 3 near the connection with the screw nut connecting block 24, and avoid the insulating cross beam 3 from being broken at the connection with the screw nut connecting block 24 when lifting the main line, optionally, a reinforcing bolt 37 is arranged in the vertical direction at the positions on both sides of the clamping groove, so as to enhance the structural strength of the area and improve the structural reliability of the insulating cross beam 3 when lifting the main line.

[0091] In the optional embodiment of the present embodiment, the lifting mechanism 2 further comprises a lower limit switch 211, which is arranged below the insulating cross beam 3 and fixed to the frame 1; the lower limit switch 211 is electrically connected or signal connected with the driving part of the lifting mechanism 2; a lower detection piece 32 is arranged on the lower surface of the end of the insulating cross beam 3 near the lifting mechanism 2, and when the insulating cross beam 3 is lowered to a predetermined position, the lower detection piece 32 can trigger the lower limit switch 211, so as to stop the driving part of the lifting mechanism 2 from continuing to lower the execution end.

[0092] In the optional embodiment, by arranging the lower limit switch 211 and the lower detection piece 32, the insulating cross beam 3 can be effectively prevented from exceeding the predetermined range during the lowering process, and mechanical damage or safety accidents caused by excessive lowering can be avoided.

[0093] In addition, as shown, Figure 1 In the present embodiment, a power supply module 6 can be additionally arranged, which is connected with the driving source of the lifting mechanism 2, the driving source of the linear translation driving assembly 42, the lateral limit switch 48 and the lower limit switch 211 in each optional embodiment to provide power for these components, or independent power sources can be separately arranged for these components.

[0094] Finally, it should be noted that:

[0095] 1. In the present specification, "and / or" means that the structures before "and / or" and the structures after "and / or" are arranged simultaneously or alternatively;

[0096] 2. Each embodiment in the present specification is described in a progressive manner, and each embodiment mainly describes the differences from other embodiments. The same or similar parts of each embodiment can be referred to. The above embodiments in the present specification are only used to illustrate the technical solutions of the present application, and not to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An insulator main line lifting device, characterized by, The utility model relates to a kind of frame (1), install insulating crossbeam (3) and drive the lifting mechanism (2) of the insulating crossbeam (3) lifting, the free end of the insulating crossbeam (3) is equipped with main line support groove (31);Anti-deflection clamping mechanism (4), including mounting seat (41), linear translation drive assembly (42), fixed clamping block (43) and anti-deflection locking clamping block assembly (44);The mounting seat (41) is fixed to the frame (1);Linear translation drive assembly (42) and fixed clamping block (43) are fixed to the mounting seat (41);Anti-deflection locking clamping block assembly (44) includes movable block (441), floating block (442) and longitudinal spring (443);Along the translation direction of linear translation drive assembly (42), movable block (441) and fixed clamping block (43) are separately arranged at the two ends of linear translation drive assembly (42), and movable block (441) is fixedly connected with the execution end of linear translation drive assembly (42);Floating block (442) is arranged on the side of movable block (441) towards fixed clamping block (43), and the side surface of the side of movable block (441) and floating block (442) facing each other is inclined surface;Longitudinal spring (443) is arranged between floating block (442) and movable block (441), and one end of longitudinal spring (443) is fixedly connected with floating block (442), and the other end is fixedly connected with movable block (441), when longitudinal spring (443) is in free state, the inclined surface of floating block (442) and movable block (441) facing each other is mutually spliced;When movable block (441) rises relative to floating block (442), movable block (441) slides upwards along the inclined surface spliced with floating block (442), to extrude floating block (442) to one side of fixed clamping block (43). Inclined surface of movable block (441) and floating block (442) facing each other is equipped with assembly slot, and longitudinal spring (443) is arranged in the assembly slot. Horizontal limiting component is further arranged between movable block (441) and floating block (442); Horizontal limiting component includes limiting rod, head end limiting part and tail end limiting part connected at two ends of limiting rod respectively; Floating block (442) is equipped with mounting hole penetrating in horizontal direction, limiting rod penetrates mounting hole, and tail end limiting part is blocked on the side of floating block (442) away from movable block (441); 2. The insulator string lifting device of claim 1, wherein Movable block (441) is equipped with limiting hole extending in vertical direction, limiting rod penetrates limiting hole, and head end limiting part is limited on the side of movable block (441) away from floating block (442);Or, movable block (441) is equipped with limiting slot extending in vertical direction, head end limiting part is limited in limiting slot and can slide along limiting slot.

3. The insulator string lifting device of claim 1, wherein ​ ​ ​ ​ 4. The insulator string lifting device of claim 1, wherein The side surface of the fixed clamping block (43) towards the floating block (442) is provided with a stepped inclined block (45) below the linear translation driving assembly (42), and the stepped inclined block (45) is a stepped inclined surface protruding towards the floating block (442) in the longitudinal upper middle region, which includes an upper inclined surface, a middle plane and a lower inclined surface.

5. The insulator string lifting device of claim 1, wherein The fixed clamping block (43) and the movable block (441) are further connected with a transverse support rod (423), one end of the transverse support rod (423) is fixedly connected with the fixed clamping block (43), and the movable block (441) is slidingly connected with the transverse support rod (423).

6. The insulator string lifting device of claim 1, wherein The anti-deflection clamping mechanism (4) is fixedly connected with the frame (1) through a quick release structure (5); The quick release structure (5) comprises: A quick release module (51) is located above the fixed clamping block (43) and the movable block (441) and is fixedly connected with the fixed clamping block (43) or the mounting seat (41), the quick release module (51) comprises a connecting frame (511) and at least two quick mounting clamping blocks (512) fixedly connected with the connecting frame (511), a dovetail groove (52) is arranged on the top surface of each quick mounting clamping block (512), the dovetail groove (52) penetrates the quick mounting clamping block (512) in the transverse direction, and a threaded hole (53) is arranged on the side surface of the quick mounting clamping block (512); A dovetail type boss (54) is arranged on the bottom surface of the frame (1), and the dovetail type boss (54) is embedded in the dovetail groove (52); A hand screw (55) is threadedly connected with the threaded hole (53) to block the dovetail type boss (54) from sliding out of the dovetail groove (52) in the transverse direction.

7. The insulator string lifting device of claim 6, wherein, The anti-deflection clamping mechanism (4) further comprises a transverse limiting switch (48) and a transverse limiting detection piece (49); The transverse limiting switch (48) is electrically connected or signal connected with the driving part of the linear translation driving assembly (42); In the translation direction of the linear translation driving assembly (42), the transverse limiting switch (48) is installed at the end of the connecting frame (511) away from the fixed clamping block (43), and the transverse limiting detection piece (49) is fixedly connected with the movable block (441), when the movable block (441) is translated to a preset position away from the fixed clamping block (43), the transverse limiting detection piece (49) can trigger the transverse limiting switch (48) to stop the driving part of the linear translation driving assembly (42) from continuing to move in the original direction.

8. The insulator string lifting device of claim 1, wherein, The anti-deflection clamping mechanism (4) further comprises a connecting mechanism for clamping the end tool of a mechanical arm, and the connecting mechanism comprises an I-shaped chuck (46) and a protective frame (47); The I-shaped chuck (46) is fixedly connected with the mounting seat (41), and the protective frame (47) is fixedly connected with the mounting seat (41) and arranged on one side of the I-shaped chuck (46).

9. The insulator main line lifting device according to claim 1, characterized in that, an end of the insulating cross beam (3) away from the lifting mechanism (2) is further provided with a wire locking mechanism, the wire locking mechanism comprising a movable arm (33), a pressing piece (34) and a torsion spring (35); one end of the movable arm (33) is rotatably connected to one side of the main line supporting groove (31) through a transverse rotating shaft (36), the top surface of the movable arm (33) is provided with a mounting groove, the pressing piece (34) is fixed to the top of the mounting groove, the torsion spring (35) is wound around the transverse rotating shaft (36), one end of the torsion spring (35) is inserted into the inside of the mounting groove and abuts against the bottom of the pressing piece (34), and the other end of the torsion spring (35) abuts against the outer side wall of the insulating cross beam (3); the torsion spring (35) is configured to shield the top opening of the main line supporting groove (31) when the movable arm (33) is in a free state, and the torsion spring (35) is elastically deformed when the movable arm (33) is subjected to upward or downward pressure, so as to allow the main line to enter or exit the main line supporting groove (31).

10. The insulator string lifting device of claim 1, wherein, the lifting mechanism (2) further comprises a lower limit switch (211), the lower limit switch (211) is located below the insulating cross beam (3) and is fixed to the frame (1); the lower limit switch (211) is electrically connected or signal connected with the driving part of the lifting mechanism (2); a lower position detection piece (32) is arranged on the lower surface of the end of the insulating cross beam (3) close to the lifting mechanism (2), when the insulating cross beam (3) is lowered to a predetermined position, the lower position detection piece (32) can trigger the lower limit switch (211) to stop the driving part of the lifting mechanism (2) from continuing to lower the driving execution end.

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