Trolley walking mechanism and high-voltage transmission line spacer auxiliary installation trolley

Abstract

The invention relates to a high-voltage transmission line spacer auxiliary installation device and discloses a trolley walking mechanism and a high-voltage transmission line spacer auxiliary installation trolley, the trolley walking mechanism comprises walking wheels (102) capable of walking on a transmission line, the walking wheels (102) are located on the upper side face of the transmission line, and the trolley walking mechanism further comprises line pressing wheels (108) capable of being connected to the lower side of the transmission line in a pressing mode. And the wire pressing wheel (108) is positioned behind the walking forward direction of the walking wheel (102) when being pressed on the lower side of the power transmission line. The trolley can be better erected on the power transmission line and can stably walk on the power transmission line, and the trolley can automatically measure the mounting distance of the spacer, so that the mounting efficiency and accuracy are greatly improved, the safety risk is reduced, the economic benefit and the social benefit are remarkable, and the trolley has wide application prospects in line engineering construction.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of high-voltage transmission line spacer auxiliary installation device, especially a kind of high-voltage transmission line spacer auxiliary installation trolley. BACKGROUND

[0002] Power transmission line spacer is indispensable important component in power line, its main function is to keep the equivalent radius of split conductor, suppress conductor dancing, improve the stability and safety of line.Spacer installation quality and installation distance accuracy directly affect the operating performance and life of line, it can not only maintain the distance between conductors, prevent conductor collision and discharge, but also effectively suppress conductor vibration, improve transmission capacity and reliability.

[0003] However, the measurement of spacer installation distance and the guarantee of installation quality in the traditional installation method still mainly rely on manual, workers go to the conductor, use measuring rope or laser range finder and other tools to measure in the air or workers use measuring rope, laser range finder and other tools on the ground, measure by simulation measurement or direct measurement, such method either has great safety risk, or has problems such as low efficiency and large measurement error, especially in complex terrain and bad weather conditions, these problems are particularly prominent.

[0004] Therefore, it is necessary to propose a scheme different from the traditional method and capable of improving the problems existing in the traditional installation method. SUMMARY

[0005] The present application provides a kind of high-voltage transmission line spacer auxiliary installation device and auxiliary installation method for the problems existing in the prior art about high-voltage transmission line spacer installation.

[0006] In order to solve the above technical problems, the present application is solved by the following technical scheme: The trolley walking mechanism includes walking wheels that can walk on the power transmission line, the walking wheels are located at the upper side of the power transmission line, and further includes a wire pressing wheel that can be pressed to the lower side of the power transmission line, the wire pressing wheel is located behind the walking direction of the walking wheels when pressed to the lower side of the power transmission line.The position of the wire pressing wheel is set to ensure that the trolley is stably erected on the power transmission line, and to ensure that the trolley does not retreat when climbing on the power transmission line, and the working reliability is high.

[0007] As a preferred, it further includes a walking wheel driving motor for driving the walking wheels to walk on the power transmission line, one end of the walking wheels is connected to the motor shaft of the walking wheel driving motor, and the other end is provided with a rotating bearing.

[0008] Preferably, the pressure roller and the traveling roller have the same shape, both including frustum sections at both ends and a cylindrical section in the middle. The outer diameter of the frustum sections gradually decreases from both ends of the traveling roller or pressure roller towards the cylindrical section until it is equal to the outer diameter of the cylindrical section. The outer wall of the cylindrical section is recessed from both ends towards the middle to form an arc-shaped groove for mating with the outer surface of the power transmission line. The design of the pressure roller and the traveling roller's structural shape can limit the movement of the power transmission line, ensuring that the trolley runs stably and reliably on the power transmission line.

[0009] Preferably, the system also includes a pressure roller drive assembly, which includes a pressure roller mounting bracket. The mounting bracket includes a frame, one end of which has a rotating shaft located below the traveling wheel. The pressure roller is located at the other end of the frame. A torsion spring is mounted on the rotating shaft to drive the frame to rotate upwards around the rotating shaft. The pressure roller can press against the underside of the power transmission line under the rotation of the frame. The torsion spring provides clamping force to ensure that the pressure roller can stably press against the power transmission line.

[0010] Preferably, the rotating shaft includes a rotating shaft body and two annular limiting bodies respectively disposed at both ends of the rotating shaft body and coaxially disposed with the rotating shaft body. The portion of the rotating shaft body located at the two annular limiting bodies constitutes a torsion spring mounting section for mounting a torsion spring. A drive plate is also connected between the two annular limiting bodies. A gap is left between the drive plate and the torsion spring mounting section for the torsion arm of the torsion spring to pass through. When the rotating shaft rotates, the drive plate can drive the torsion spring to twist. During the twisting process, the torsion spring can drive the frame to rotate upward around the rotating shaft.

[0011] Preferably, one end of the rotating shaft is connected to a lever that can drive the rotating shaft to rotate. One end of the lever is connected to the end of the rotating shaft, and the other end is a free end. The lever enables the operation of the pressure roller, allowing it to be stably pressed onto the power transmission line.

[0012] Preferably, the torsion spring is a parallel double torsion spring, including two coaxially arranged helical parts with opposite winding directions, a U-shaped retaining ring connecting the two helical parts, and two torsion arms located on the outside of the two helical parts respectively. Both helical parts are sleeved on the torsion spring mounting section, and the surface of the drive plate can act on the U-shaped retaining ring when the shaft rotates. The frame includes two connecting arms. The pressing wheel and the rotating shaft are installed between the two connecting arms and are located at both ends of the connecting arms respectively. A drive arm is also installed between the two connecting arms. Two slots are provided on the lower end face of the drive arm. Two support columns are also provided on the inner side of the two connecting arms. The middle part of the torsion arm is engaged in the slot, and the end away from the spiral part is attached to the support column.

[0013] The structural design of the torsion spring and its driving method make it simple and convenient to operate. The force application point is located at both ends of the pressure wheel, so that the pressure wheel will not affect the movement of the trolley due to excessive pressure in the middle when it presses the power line.

[0014] As preferred, the pressing wheel limiting assembly is further provided, which comprises a limiting rod installed at one end of the rotating shaft and capable of rotating along with the rotating shaft, and a pressing rod capable of abutting against the limiting rod, the pressing rod being used for keeping the limiting rod in a vertical state, and the pressing wheel being pressed against the lower side of the power transmission line when the limiting rod is in the vertical state. The pressing wheel limiting assembly can limit the limiting rod, and then limit the pressing wheel frame body, so as to ensure that the pressing wheel is in a stable pressing state.

[0015] As preferred, the end of the limiting rod away from the rotating shaft is provided with a first inclined surface, the end of the pressing rod towards the limiting rod is capable of rotating upwards and comprises a vertically arranged abutting surface and a second inclined surface arranged at the lower side of the pressing rod and capable of cooperating with the first inclined surface, and the end of the limiting rod can pass over the end of the pressing rod during the rotation of the limiting rod along with the rotating shaft, so that the abutting surface abuts against the side surface of the limiting rod. The limiting rod is limited by the pressing rod, and the operation is relatively convenient whether the limiting rod is limited or released, and the limiting rod can be well applied to high-altitude operation.

[0016] The auxiliary installation trolley for the spacer of the high-voltage power transmission line comprises the trolley walking mechanism.

[0017] The present application has the following technical effects: The present application provides a trolley capable of preferably assisting in the installation of the spacer, which can be preferably erected on the power transmission line and can stably walk on the power transmission line, and the installation interval of the spacer can be automatically measured through the trolley, so that the installation efficiency and accuracy are greatly improved, the safety risk is reduced, and the economic and social benefits are remarkable, and the trolley has a wide application prospect in line engineering construction. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present application.

[0019] Figure 2 is another view of the structural schematic diagram of the present application. Figure 1

[0020] Figure 3 is a pressing state schematic diagram of the pressing wheel of the present application.

[0021] Figure 4 is an internal structure schematic diagram of the present application. Figure 1

[0022] Figure 5 is an installation schematic diagram of the walking wheel on the main installation plate.

[0023] Figure 6 is an installation schematic diagram of the counting wheel on the main installation plate.

[0024] ​​Figure 7 is a schematic view of a structure of a pressing wheel driving assembly.

[0025] Figure 8 is a schematic view of a structure of an anti-collision assembly.

[0026] Figure 9 is a schematic view of a structure of a main frame. Figure 8 is a schematic view of a structure of a movable plate in the main frame.

[0027] Figure 10 is a control block diagram of the application. DETAILED DESCRIPTION

[0028] The application will be further described in detail below in combination with the drawings and embodiments. EMBODIMENT

[0029] A high-voltage transmission line spacer auxiliary installation trolley is provided in the embodiment, as shown in the figure, which can be applied to high-voltage transmission lines with a diameter / specification of 400-630 square millimeters. The whole trolley has a light and portable overall structure, and the weight is not more than 5 kg. The trolley body is provided with a safety hook to prevent falling risk due to accidental dropping. The trolley can effectively assist the installation of the spacer and effectively improve the installation efficiency of the spacer. Figures 1-10

[0030] The specific structure is as follows: The trolley frame 1 includes a frame body 101. The frame body 101 is provided with walking wheels 102 for driving the trolley to walk and counting wheels 103 for recording the walking distance of the trolley at both ends along the walking forward direction of the trolley.

[0031] The frame body 101 is provided with a trolley walking mechanism. The trolley walking mechanism includes the walking wheels 102 that can walk on the transmission line, the walking wheels are located at the upper side of the transmission line, and further includes the pressing wheels 108 that can be pressed to the lower side of the transmission line. The pressing wheels 108 are located behind the walking direction of the walking wheels 102 when pressed to the lower side of the transmission line. The trolley walking mechanism further includes a walking wheel driving motor 106 for driving the walking wheels 102 to walk on the transmission line. One end of the walking wheels 102 is connected to the motor shaft of the walking wheel driving motor 106, and the other end is provided with a rotating bearing 115.

[0032] The frame body 101 includes a main mounting plate 105 arranged vertically. The main mounting plate 105 is provided with an upper assembly and a lower assembly of the frame arranged in an up-down manner on one side. The upper assembly and the lower assembly of the frame form a U-shaped wire inlet cavity 111 with an opening facing away from the main mounting plate 105. The walking wheels 102 and the counting wheels 103 are installed on the upper assembly of the frame. The upper assembly of the frame is further provided with the walking wheel driving motor 106 connected with the walking wheels 102 and the encoder 107 connected with the counting wheels 103.

[0033] ​The rear end surface of the trolley frame body 101 in the trolley walking forward direction is also provided with a positioning laser module 104 for positioning the installation position of the spacer on the multiple power transmission lines. The positioning laser module 104 is selected as a 360° annular linear laser module.

[0034] The main mounting plate 105 is also provided with a trolley frame lower assembly distributed below the trolley frame upper assembly. The trolley frame lower assembly is provided with a wire pressing wheel 108 and a power supply battery 109 corresponding to the walking wheel 102 and the counting wheel 103, respectively. The walking wheel 102 and the counting wheel 103 are located on the upper side of the power transmission line, and the wire pressing wheel 108 can be pressed to the lower side of the power transmission line.

[0035] The trolley frame upper assembly is also provided with a main control panel 110 electrically connected to the positioning laser module 104, the walking wheel driving motor 106, the encoder 107, and the power supply battery 109.

[0036] During work, the staff places the trolley in one of the power transmission lines through the U-shaped wire inlet cavity 111 from one end of the power transmission line. Under the action of the trolley's own gravity, the walking wheel 102 and the counting wheel 103 can be pressed on the power transmission line to fully contact the power transmission line. Then, the wire pressing wheel 108 is pressed to the lower side of the power transmission line. The wire pressing wheel 108 and the walking wheel 102 realize the upper and lower limiting of the power transmission line, and the wire pressing wheel 108 is pressed tightly on the wire with appropriate force, ensuring that the trolley is firmly erected on the overhead power transmission line. In addition, when the wire pressing wheel 108 is pressed to the lower side of the power transmission line, the wire pressing wheel 108 is located behind the walking wheel 102 in the walking forward direction, so that the trolley will not retreat when climbing the power transmission line, and the work reliability is high.

[0037] In this embodiment, the wire pressing wheel 108 and the walking wheel 102 have the same shape, both including a circular truncated cone segment 301 at both ends and a circular cylinder segment 302 in the middle. The outer diameter of the circular truncated cone segment 301 gradually decreases from both ends of the walking wheel 102 or the wire pressing wheel 108 to the circular cylinder segment 302 to be equal to the outer diameter of the circular cylinder segment 302. The outer side wall of the circular cylinder segment 302 is recessed from both ends to the middle to form an arc-shaped groove 303 for cooperating with the outer surface of the power transmission line.

[0038] The wire pressing wheel 108 and the walking wheel 102 cooperate with each other to realize the pressing of the upper and lower sides of the power transmission line through their respective arc-shaped grooves 303. Based on the shape of the narrow middle and wide ends, a limiting channel is formed for the power transmission line to pass through. At the same time, the wire pressing wheel 108 is located on the rear side of the walking wheel 102, thereby increasing the length of the limiting channel through this layout mode, realizing the stable erection and walking of the trolley on the power transmission line.

[0039] In addition, the power supply battery 109 is arranged at the rear of the trolley and below the counting wheel 103, has a reasonable layout, and can play a counterweight role at the rear of the trolley in addition to the power supply role for the whole trolley, so as to ensure that the trolley cannot be tilted forward, can ensure effective contact between the counting wheel 103 and the power transmission line, and further improve the stability of the trolley in installation and walking on the power transmission line, so that the trolley can work effectively without the need of arranging the line pressing wheel 108 at the rear of the trolley, and the cost and weight are reduced.

[0040] In the walking process of the trolley on the power transmission line, the walking switch is turned on, the walking wheel driving motor 106 drives the walking wheel 102 to rotate, the walking on the power transmission line is realized, and the power transmission line drives the counting wheel 103 to rotate. The counting wheel 103 is connected with the photoelectric encoder 107, the counting wheel 103 and the encoder 107 can obtain the walking distance signal of the trolley and transmit the signal to the main control panel 110. The main control panel 110 converts the signal into walking distance data after analyzing the signal, and compares the walking distance data with the preset length input by the staff on the display screen of the main control panel 110 in real time. The input preset length is the distance length required for installation of the adjacent spacer rod. When the obtained walking distance is equal to the preset length, the main control panel 110 controls the walking wheel driving motor 106 to stop, and the trolley stops walking. The stop position is the installation position of the spacer rod. Then the main control panel 110 controls the positioning laser module 104 to emit plane laser, so that the ring-shaped laser is emitted, and laser marks are formed on the adjacent multiple power transmission lines. The staff can install multiple installation points of the spacer rod at different power transmission lines according to the marks. The laser marking method can effectively ensure the installation accuracy and quality of the spacer rod, the distance between the adjacent power transmission lines is basically consistent, the installation points between the adjacent spacer rods are aligned with each other, and the overall installation is more beautiful.

[0041] In the embodiment, the upper assembly of the trolley frame includes a walking wheel mounting frame 701 and a counting wheel mounting frame 702. The walking wheel mounting frame 701 and the counting wheel mounting frame 702 respectively include a walking wheel U-shaped frame body 703 and a counting wheel U-shaped frame body 704, both of which are provided with an opening downward. The outer end faces of the walking wheel U-shaped frame body 703 and the counting wheel U-shaped frame body 704 are respectively provided with a frame front end plate 705 constituting a front end plate of the upper assembly of the trolley frame and a frame rear end plate 706 constituting a rear end plate of the upper assembly of the trolley frame. The lower parts of the frame front end plate 705 and the frame rear end plate 706 are respectively provided with a circular arc groove 707 with an opening downward. The walking wheel 102 and the counting wheel 103 are respectively arranged in the walking wheel U-shaped frame body 703 and the counting wheel U-shaped frame body 704. When the walking wheel 102 and the counting wheel 103 are located at the upper side of the power transmission line, the inner wall of the circular arc groove 707 and the power transmission line have a spacing, so that the circular arc groove 707 does not interfere with the relative movement of the power transmission line below the walking wheel 102.

[0042] The walking wheel U-shaped frame body 703 and the counting wheel U-shaped frame body 704 each include a rear side arm 708 fixed on the main mounting plate 105, and a motor mounting cavity 709 and an encoder mounting cavity 710 are respectively arranged in the rear side wall of the walking wheel U-shaped frame body 703 and the counting wheel U-shaped frame body 704, and a walking wheel driving motor 106 connected with the walking wheel 102 and an encoder 107 connected with the counting wheel 103 are respectively arranged in the motor mounting cavity 709 and the encoder mounting cavity 710. One end of the walking wheel 102 is mounted on the rear side wall of the walking wheel U-shaped frame body 703 and connected with the motor shaft of the walking wheel driving motor 106, and the other end of the walking wheel 102 is mounted on the front side wall of the walking wheel U-shaped frame body 703 through a rotating bearing 115.

[0043] The structure of the upper frame assembly in the embodiment is simple, and only the main mounting plate 105 and the two U-shaped frame bodies are needed to realize the mounting of the walking wheel 102 and the driving mechanism thereof, the counting wheel 103, the encoder 107 and the like. In addition, the upper frame assembly further includes a main control panel mounting rack 711 arranged between the walking wheel mounting rack 701 and the counting wheel mounting rack 702. The main control panel mounting rack 711 is configured as an L-shaped support plate including a vertical arm 712 and a horizontal arm 713. The vertical arm 712 is fixed on the main mounting plate 105, and the horizontal arm 713 is mounted with the main control panel 110 electrically connected with the walking wheel driving motor 106 and the encoder 107.

[0044] The main control panel 110 is mounted between the two U-shaped frame bodies through the main control panel mounting rack 711, and short-distance connection between the main control panel 110 and the walking wheel 102 and the counting wheel 103 can be realized, and the layout position is reasonable. In addition, the walking wheel 102 and the driving mechanism thereof, the counting wheel 103 and the encoder 107 and the like are hidden and mounted in the upper frame assembly, so that the front end, the rear end, the left end, the right end and the upper end of the upper frame assembly are all planar structures, the integrity and the appearance of the frame are ensured, and the corresponding protection of each moving element is also realized.

[0045] The lower frame assembly includes a battery mounting seat 714 and a wire pressing wheel mounting seat 715 arranged above and below the counting wheel mounting rack 702 and the walking wheel mounting rack 701 respectively. The battery mounting seat 714 and the wire pressing wheel mounting seat 715 are fixed on the main mounting plate 105 and located on the same horizontal plane. The arrangement positions of the battery mounting seat 714 and the wire pressing wheel mounting seat 715 further increase the overall structural neatness and the appearance of the trolley frame 1, and also make the distribution of each part on the trolley frame 1 uniform and reasonable, so as to ensure that the weight distribution of each position of the trolley is relatively uniform and reduce the risk of trolley rollover and imbalance.

[0046] The power supply battery 109 is inserted into the lower bottom surface of the battery mounting seat 714, and the wire pressing wheel 108 is installed on the wire pressing wheel mounting seat 715 through a wire pressing wheel mounting frame 4. The cooperation of the wire pressing wheel 108 and the power supply battery 109 can realize the pressing of the trolley on the front side of the power transmission line and the counterweight on the rear side, thereby ensuring the installation stability of the trolley at both ends.

[0047] The lower end surface of the battery mounting seat 714 is provided with a power supply battery 109 insertion slot, and the construction personnel can directly insert the power supply battery 109 through the insertion slot, which is simple and convenient to operate.

[0048] The trolley walking mechanism in the embodiment further includes a wire pressing wheel driving assembly, which includes a wire pressing wheel mounting frame 4. The wire pressing wheel 108 is installed on the wire pressing wheel mounting seat 715 through the wire pressing wheel mounting frame 4.

[0049] The wire pressing wheel mounting frame 4 includes a frame body 401 installed on the wire pressing wheel mounting seat 715 through a rotating shaft 402. The rotating shaft 402 is arranged at one end of the frame body 401 and below the walking wheel 102. The wire pressing wheel 108 is arranged at the other end of the frame body 401. The frame body 401 can be rotated around the rotating shaft 402 to a position where the wire pressing wheel 108 is pressed to the lower side of the power transmission line. The battery mounting seat 714 and the wire pressing wheel mounting seat 715 are left with a containing interval 716 for accommodating the frame body 401 when the frame body 401 is rotated to a horizontal state. The containing interval 716 can ensure that the frame body 401 can be rotated to a horizontal state without overlapping above the battery mounting seat 714, thereby avoiding that the frame body 401 blocks the wire inlet opening of the U-shaped wire inlet cavity 111 in the initial state or when the trolley is removed from the power transmission line, and facilitating the installation and disassembly of the trolley.

[0050] In the embodiment, the rotating shaft 402 is provided with a torsional spring 403 for driving the frame body 401 to rotate upward around the rotating shaft 402. The wire pressing wheel 108 can be pressed to the lower side of the power transmission line under the action of the rotation of the frame body 401.

[0051] The rotating shaft 402 includes a rotating shaft rod body 404 and two annular limiting bodies 405 arranged at both ends of the rotating shaft rod body 404 and coaxially arranged with the rotating shaft rod body 404. The part of the rotating shaft rod body 404 located between the two annular limiting bodies 405 constitutes a torsional spring mounting section for mounting the torsional spring 403. The two annular limiting bodies 405 are further connected with a driving plate 406. The driving plate 406 and the torsional spring mounting section are left with an interval for the torsional arm 503 of the torsional spring 403 to pass through. When the rotating shaft 402 rotates, the driving plate 406 can drive the torsional spring 403 to twist, and the torsional spring 403 can drive the frame body 401 to rotate upward around the rotating shaft 402 during the twisting process.

[0052] The torsion spring 403 is a parallel double torsion spring 403, comprising two spiral parts 501 coaxially arranged and having opposite winding directions, a U-shaped buckle 502 connected between the two spiral parts 501, and two torsion arms 503 respectively located outside the two spiral parts 501, wherein the two spiral parts 501 are sleeved on the torsion spring mounting section, and the plate surface of the driving plate 406 can act on the U-shaped buckle 502 when the rotating shaft 402 rotates. The frame body 401 comprises two connecting arms 407, the wire pressing wheel 108 and the rotating shaft 402 are both mounted between the two connecting arms 407 and located at the two ends of the connecting arms 407 respectively, and a driving arm 408 is further mounted between the two connecting arms 407, wherein the lower end surface of the driving arm 408 is provided with two clamping grooves 410, and the inner side surfaces of the two connecting arms 407 are further provided with two supporting columns 409, the middle part of the torsion arm 503 is clamped in the clamping groove 410, and the end part away from the spiral part 501 is lapped on the supporting column 409.

[0053] The torsion spring 403 in the embodiment provides torsion force through the two spiral parts 501 and the two torsion arms 503, can realize pressing the two ends of the wire pressing wheel 108, makes the wire pressing wheel 108 bear force better, guarantees the crimping effect of the wire pressing wheel 108 on the power transmission line, and influences the trolley walking due to the transition pressing of the power transmission line.

[0054] One end of the rotating shaft 402 is connected to the main mounting plate 105 and the end part is provided with a push rod 5 capable of driving the rotating shaft 402 to rotate, one end of the push rod 5 is connected to the end part of the rotating shaft 402, and the other end constitutes a free end.

[0055] The lower end surfaces of the rear side arms 708 of the trolley walking wheel U-shaped frame body 703, the lower end surfaces of the rear side arms 708 of the counting wheel U-shaped frame body 704, and the lower end surfaces of the vertical arms 712 of the main control panel mounting frame 711 are all on the same horizontal plane and together with the plate surface of the main mounting plate 105 form an L-shaped accommodating groove 717, and the push rod 5 in the horizontal state can be accommodated in the L-shaped accommodating groove 717. The L-shaped accommodating groove 717 is naturally formed by the rear side wall, which can make the overall structure of the trolley more compact, and there is no need to additionally set a corresponding push rod 5 storage position.

[0056] The trolley walking mechanism further comprises a wire pressing wheel limiting assembly, the wire pressing wheel limiting assembly comprises a limiting rod 601 mounted on the end part of the rotating shaft 402 away from the main mounting plate 105 and capable of rotating with the rotating shaft 402, and a resisting rod 602 mounted between the front side arm of the trolley walking wheel U-shaped frame body 703 and the front side wall of the counting wheel U-shaped frame body 704 and capable of abutting against the limiting rod 601, wherein the resisting rod 602 is used for keeping the limiting rod 601 in a vertical state, and the wire pressing wheel 108 is pressed against the lower side of the power transmission line when the limiting rod 601 is in the vertical state.

[0057] The front side arm of the walking wheel U-shaped frame body 703 is provided with an L-shaped opening 718 communicated with the limiting cavity, and the end of the limiting rod 601 can rotate into the limiting cavity through the L-shaped opening 718; the end face of the front side arm of the walking wheel U-shaped frame body 703 facing the counting wheel U-shaped frame body 704 is provided with a vertical long hole 719 communicated with the limiting cavity, and the end of the abutting rod 602 can slide up and down in the vertical long hole 719; when the abutting rod 602 is in a horizontal state, the end thereof is lapped on the bottom wall of the vertical long hole 719. The end of the abutting rod 602 is rotatably connected to the front side wall of the counting wheel U-shaped frame body 704, and the other end thereof can extend into the limiting cavity to limit the limiting rod 601 in a vertical state. The end of the limiting rod 601 away from the rotating shaft 402 is provided with a first inclined surface 603, the end of the abutting rod 602 facing the limiting rod 601 can rotate upward and includes a vertical abutting surface 604 and a second inclined surface 605 provided at the lower side of the abutting rod 602 and capable of cooperating with the first inclined surface 603, and the end of the limiting rod 601 can pass over the end of the abutting rod 602 during the rotation of the limiting rod 601 with the rotating shaft 402 to make the abutting surface 604 abut on the side surface of the limiting rod 601.

[0058] The end of the abutting rod 602 is rotatably connected to the front side wall of the counting wheel U-shaped frame body 704, and the other end thereof can extend into the limiting cavity to limit the limiting rod 601 in a vertical state. The end of the limiting rod 601 away from the rotating shaft 402 is provided with a first inclined surface 603, the end of the abutting rod 602 facing the limiting rod 601 can rotate upward and includes a vertical abutting surface 604 and a second inclined surface 605 provided at the lower side of the abutting rod 602 and capable of cooperating with the first inclined surface 603, and the end of the limiting rod 601 can pass over the end of the abutting rod 602 during the rotation of the limiting rod 601 with the rotating shaft 402 to make the abutting surface 604 abut on the side surface of the limiting rod 601.

[0059] The front side arm of the walking wheel U-shaped frame body 703 is provided with an L-shaped opening 718 communicated with the limiting cavity, and the end of the limiting rod 601 can rotate into the limiting cavity through the L-shaped opening 718; the end face of the front side arm of the walking wheel U-shaped frame body 703 facing the counting wheel U-shaped frame body 704 is provided with a vertical long hole 719 communicated with the limiting cavity, and the end of the abutting rod 602 can slide up and down in the vertical long hole 719; when the abutting rod 602 is in a horizontal state, the end thereof is lapped on the bottom wall of the vertical long hole 719.

[0060] During the working process, after the trolley frame 1 is erected on the power transmission line, the worker first pushes the push rod 5, and after the push rod 5 rotates, the rotating shaft 402 is driven to rotate, the rotation of the rotating shaft 402 drives the driving plate 406 on it to rotate, the rotation of the driving plate 406 drives the torsion spring 403 to rotate, so that the torsion spring acts on the frame body 401, and the frame body 401 is rotated upward around the rotating shaft 402 from the initial horizontal state to the vertical state, and the wire pressing wheel 108 on the frame body 401 is pressed on the lower side of the power transmission line. When the rotating shaft 402 rotates, the limiting rod 601 connected thereto also rotates with the rotating shaft 402, and the end portion thereof rotates into the limiting cavity through the L-shaped opening 718. With the operation of the limiting rod 601, the first inclined surface 603 at the end portion thereof abuts against the second inclined surface 605 of the abutting rod 602 and pushes the second inclined surface 605 to move upward. At this time, the end portion of the abutting rod 602 moves upward at the vertical long hole 719. With the further rotation of the limiting rod 601, the first inclined surface 603 finally passes the end portion of the abutting rod 602. At this time, the end portion of the abutting rod 602 falls back to the bottom surface of the vertical long hole 719 under the action of gravity and makes the abutting rod 602 remain in the horizontal state. The side surface of the limiting rod 601 abuts against the abutting surface 604 of the abutting rod 602 and remains in the vertical state under the action of the abutting rod 602. The rotating shaft 402 cannot rotate, and the wire pressing wheel 108 is always pressed on the power transmission line.

[0061] In addition, the abutting rod 602 extends to the front side wall of the counting wheel U-shaped frame body 704 and the front side wall of the walking wheel U-shaped frame body 703 at the both ends thereof, and the middle part thereof is in the exposed state. When it is needed to remove the trolley from the power transmission line, the operator only needs to pull the middle part of the abutting rod 602 upward, so as to release the limiting of the abutting rod 602 to the limiting rod 601. At this time, the frame body 401, the limiting rod 601 and the like automatically fall back to the initial state under the action of gravity. The operation is relatively simple and convenient, and no additional action is needed for loading and unloading. The single-action loading mode can be better applied to the high-altitude operation.

[0062] The front end surface of the trolley frame body 101 in the embodiment in the trolley walking direction further comprises a bump stop assembly 2. The bump stop assembly 2 comprises a proximity switch 201 mounted on the front end surface and electrically connected with the main control panel 110 and a movable plate 202 capable of rotating and triggering the proximity switch 201 under the action of rotation. The movable plate 202 is provided with a bump stop rod 203 capable of driving the movable plate 202 to rotate under the action of external force. The bump stop rod 203 is arranged in front of the front end surface.

[0063] The front end surface comprises a front end upper surface 112, a front end lower surface 113 and a wire passing hole 114 located between the front end upper surface 112 and the front end lower surface 113. The upper and lower ends of the bump stop rod 203 are respectively bent with an upper U-shaped rod portion 204 and a lower U-shaped rod portion 205. A vertical rod 206 vertically arranged at the hole wall of the wire passing hole 114 is connected between the upper U-shaped rod portion 204 and the lower U-shaped rod portion 205. The upper U-shaped rod portion 204 is located at the front end upper surface 112, and the lower U-shaped rod portion 205 is located at the front end lower surface 113.

[0064] Two anti-collision rod mounting seats 207 are arranged on the front end upper surface 112, and the upper U-shaped rod portion 204 includes an upper horizontal rod 208 and a lower horizontal rod 209 arranged in parallel and distributed in upper and lower positions, the upper end of the movable plate 202 is arranged through the upper horizontal rod 208, and the lower end is provided with a clamping groove 210 for clamping the lower horizontal rod 209, and the two ends of the upper horizontal rod 208 are respectively rotatably connected to the two anti-collision rod mounting seats 207. The movable plate 202 is further provided with a trigger portion 211 capable of triggering the proximity switch 201 under the action of the rotation of the movable plate 202, and the end of the lower horizontal rod 209 is pressed against the end face of the trigger portion 211 away from the proximity switch 201.

[0065] The structure and mounting position of the anti-collision rod 203 can make the anti-collision rod 203 first collide with the corresponding metal connecting device at the end of the wire when the trolley reaches the connection position of the power transmission line, so as to avoid the metal device from directly colliding with the trolley body, thereby playing a role in protecting the trolley from collision; at the same time, after being collided, the anti-collision rod 203 will press the movable plate 202, so that the movable plate 202 rotates towards the front end surface, and then the trigger portion 211 contacts the proximity switch 201, thereby generating a corresponding control signal, and the main control panel 110 controls the walking wheel driving motor 106 to stop based on the control signal, thereby avoiding the risk of falling off the wire due to the continued rotation of the walking wheel 102 after the trolley walks to the guide end.

[0066] In addition, in order to realize the installation and adjustment of the movable plate 202, the upper and lower ends of the movable plate 202 are respectively provided with a support bolt and a support elastic element (not shown in the figure) which can be supported on the front end surface, the support bolt passes through the movable plate 202 and is threadedly connected to the movable plate 202, and the support elastic element is installed on the plate surface of the movable plate 202 facing the front end surface, wherein the upper end of the movable plate 202 is provided with a bolt hole 212, and the back surface is provided with a groove 213 for installing the support elastic element, one end of the support elastic element is connected to the groove, and the other end abuts against the support spring on the front end surface.

[0067] The arrangement of the support bolt can realize the adjustment of the rotation angle of the movable plate 202 and the pressing force of the support spring, and the adjustment of the rotation angle of the movable plate 202 can be realized by only adjusting the distance between the upper end of the movable plate 202 and the front end surface through the adjustment of the screwing degree of the support bolt, and the greater the distance between the upper end of the movable plate 202 and the front end surface, the stronger the pressing of the lower end of the movable plate 202 on the support spring. The initial state is to make the movable plate 202 in a tilted state, avoid the trigger part 211 from contacting the proximity switch 201, when the anti-collision rod 203 receives external force, the anti-collision rod 203 is pressed to transmit force to the movable plate 202, so that the lower end of the movable plate 202 overcomes the elastic force of the supporting spring and rotates towards the front end face, in this process, the trolley can also play a certain stress buffering effect, then the trigger part 211 contacts the proximity switch 201, realizing the subsequent control of the trolley to stop continuing to walk. Embodiments

[0068] In this embodiment, a high-voltage transmission line spacer auxiliary installation method is provided, which is realized based on the high-voltage transmission line spacer auxiliary installation trolley in embodiment 1, and specifically includes the following steps: Step S1, install the trolley on one of the transmission lines, and ensure that the transmission line is in close contact with the counting wheel 103; Step S2, preset the trolley walking length based on the required distance for spacer installation; Step S3, the counting wheel 103 obtains the trolley walking distance signal after the trolley walks on the transmission line; Step S4, the trolley stops walking at the preset trolley walking length position based on the obtained trolley walking distance signal, and the positioning laser module 104 emits surface laser to all transmission lines; Step S5, the staff installs the spacers between the transmission lines based on the surface laser emitted by the positioning laser module 104; Step S6, after the spacers are installed, the trolley continues to walk to the next spacer installation position based on steps S2-S5 to install the next spacer.

[0069] Step S7, after all the spacers on the transmission line are installed, the trolley walks to the end of the transmission line, the anti-collision rod 203 first collides with the metal equipment at the end of the transmission line, triggers the proximity switch 201 to emit a control signal, and the main control panel 110 controls the trolley to stop walking based on the control signal, and the construction personnel dismount the trolley from the end of the transmission line; Step S8, continue to install the corresponding spacers on the next transmission line.

[0070] It is easy to understand that those skilled in the art can combine, split, recombine, etc. the embodiments of the present application on the basis of one or more embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0071] In summary, the above only describes the preferred embodiments of the present application, and any changes and modifications made within the scope of the present application are also included in the scope of the present application.

Claims

1. A trolley traveling mechanism, characterized in that, It includes a traveling wheel (102) that can travel on the power transmission line, the traveling wheel (102) being located on the upper side of the power transmission line, and a pressing wheel (108) that can press against the lower side of the power transmission line, the pressing wheel (108) being located behind the traveling wheel (102) in the direction of travel when it is pressed against the lower side of the power transmission line.

2. The trolley traveling mechanism according to claim 1, characterized in that, It also includes a walking wheel drive motor (106) for driving the walking wheel (102) to walk on the power line. One end of the walking wheel (102) is connected to the motor shaft of the walking wheel drive motor (106), and the other end is provided with a rotating bearing (115).

3. The trolley traveling mechanism according to claim 2, characterized in that, The pressing wheel (108) and the traveling wheel (102) have the same shape, both including a frustum section (301) at both ends and a cylindrical section (302) in the middle. The outer diameter of the frustum section (301) gradually decreases from both ends of the traveling wheel (102) or the pressing wheel (108) toward the cylindrical section (302) until it is equal to the outer diameter of the cylindrical section (302). The outer wall of the cylindrical section (302) is recessed from both ends toward the middle to form an arc-shaped groove (303) for mating with the outer surface of the power transmission line.

4. The trolley traveling mechanism according to claim 2, characterized in that, It also includes a wire pressing wheel drive assembly, which includes a wire pressing wheel mounting bracket (4). The wire pressing wheel mounting bracket (4) includes a frame (401). One end of the frame (401) is provided with a rotating shaft (402) located below the walking wheel (102). The wire pressing wheel (108) is located at the other end of the frame (401). A torsion spring (403) for driving the frame (401) to rotate upward around the rotating shaft (402) is installed on the rotating shaft (402). The wire pressing wheel (108) can press against the lower side of the power transmission line under the rotation of the frame (401).

5. The trolley traveling mechanism according to claim 4, characterized in that, The rotating shaft (402) includes a rotating shaft body (404) and two annular limiting bodies (405) respectively disposed at both ends of the rotating shaft body (404) and coaxially disposed with the rotating shaft body (404). The part of the rotating shaft body (404) located at the two annular limiting bodies (405) constitutes a torsion spring mounting section for mounting the torsion spring (403). A drive plate (406) is also connected between the two annular limiting bodies (405). A gap is left between the drive plate (406) and the torsion spring mounting section for the torsion arm (503) of the torsion spring (403) to pass through. When the rotating shaft (402) rotates, the drive plate (406) can drive the torsion spring (403) to rotate. During the rotation of the torsion spring (403), it can drive the frame (401) to rotate upward around the rotating shaft (402).

6. The trolley traveling mechanism according to claim 5, characterized in that, One end of the rotating shaft (402) is connected to a lever (5) that can drive the rotating shaft (402) to rotate. One end of the lever (5) is connected to the end of the rotating shaft (402), and the other end forms a free end.

7. The trolley traveling mechanism according to claim 5, characterized in that, The torsion spring (403) is a parallel double torsion spring (403), including two coaxially arranged helical parts (501) with opposite winding directions, a U-shaped retaining ring (502) connecting the two helical parts (501), and two torsion arms (503) located on the outside of the two helical parts (501) respectively. Both helical parts (501) are sleeved on the torsion spring mounting section. When the rotating shaft (402) rotates, the plate surface of the drive plate (406) can act on the U-shaped retaining ring (502). The frame (401) includes two connecting arms (407), a pressure roller (108) and a rotating shaft (402) are installed between the two connecting arms (407) and are located at both ends of the connecting arms (407). A drive arm (408) is also installed between the two connecting arms (407). Two slots (410) are provided on the lower end face of the drive arm (408). Two support columns (409) are also provided on the inner side of the two connecting arms (407). The middle part of the torsion arm (503) is engaged in the slot (410), and the end away from the spiral part (501) is attached to the support column (409).

8. The trolley traveling mechanism according to claim 5, characterized in that, It also includes a pressure wheel limiting assembly, which includes a limiting rod (601) with one end mounted on a rotating shaft (402) and capable of rotating with the rotating shaft (402), and a stop rod (602) capable of pressing against the limiting rod (601). The stop rod (602) is used to keep the limiting rod (601) in a vertical state. When the limiting rod (601) is in a vertical state, the pressure wheel (108) presses against the lower side of the power transmission line.

9. The trolley traveling mechanism according to claim 5, characterized in that, The end of the limiting rod (601) away from the rotating shaft (402) is provided with a first inclined surface (603). The end of the abutment rod (602) facing the limiting rod (601) can rotate upward and includes a vertically arranged abutment surface (604) and a second inclined surface (605) provided on the lower side of the abutment rod (602) and can cooperate with the first inclined surface (603). During the rotation of the limiting rod (601) following the rotating shaft (402), the end of the limiting rod (601) can pass over the end of the abutment rod (602) so that the abutment surface (604) abuts against the side of the limiting rod (601).

10. A trolley for auxiliary installation of spacers in high-voltage transmission lines, characterized in that, It includes the trolley traveling mechanism as described in any one of claims 1-9.

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