CN113644589A - Totally-enclosed construction protection pulley for high-voltage transmission line - Google Patents
Totally-enclosed construction protection pulley for high-voltage transmission line Download PDFInfo
- Publication number
- CN113644589A CN113644589A CN202110937630.1A CN202110937630A CN113644589A CN 113644589 A CN113644589 A CN 113644589A CN 202110937630 A CN202110937630 A CN 202110937630A CN 113644589 A CN113644589 A CN 113644589A
- Authority
- CN
- China
- Prior art keywords
- pulley
- frame
- totally
- transmission line
- additional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention belongs to the technical field of electric power construction equipment, and particularly relates to a totally-enclosed construction protection pulley for a high-voltage transmission line, which comprises a frame body, a first pulley and a second pulley; the radius of the second pulley is larger than that of the first pulley; the first pulley and the second pulley are rotatably arranged on the frame body, and the first pulley is positioned right above the second pulley; the first pulley, the second pulley and the frame body enclose a working area for sliding along a line, guiding the line and enclosing the line. The totally-enclosed construction protection tackle for the high-voltage transmission line can replace the traditional manual operation mode, and can avoid the falling and swinging of the line in a mechanical mode, thereby effectively reducing the potential safety hazard problem, simplifying the operation process, improving the operation construction efficiency, effectively solving the problem of high difficulty in construction coordination, saving a large amount of manpower, financial resources and material resources, and having good economic benefit and social benefit.
Description
Technical Field
The invention belongs to the technical field of electric power construction equipment, and particularly relates to a totally-enclosed construction protection tackle for a high-voltage transmission line.
Background
In the operation and construction process of the power line, various obstacles such as various power lines, expressways, electrified railways, rivers and the like are often required to be crossed. When the lead and ground wires are replaced across the obstacle, the power transmission line is firstly sealed to prevent the falling of the lead and ground wires from damaging the crossed objects below in the process of replacing the lead and ground wires, and then the lead and ground wires can be replaced. The traditional net sealing operation mode usually adopts manual runaway outgoing line net sealing or manual setting of a crossing frame net sealing, wherein the manual runaway operation mode needs two workers to take a line runaway and realize net sealing through manually fixing a net rope or a net rod, so that the method has great personal safety hidden danger. To the mode that the crossing structure is set up to the manpower and carries out the block, in order to guarantee the bulk strength and the bearing capacity of the crossing structure of setting up, under the topography allows the condition, preferentially adopt the formula steel pipe crossing structure of dish knot, when carrying out the block, need set up the scaffold frame by the both sides of crossing department, later carry out the block and shield between the support body of both sides. The method for manually setting up the spanning frame sealing net has complex procedures, can delay the whole operation construction period, has higher construction coordination difficulty, and is easy to cause the consumption of a large amount of manpower, financial resources and material resources.
How to adopt mechanical operation, eliminate the potential safety hazard, reduce manpower, financial resources, material resources consumption, become the problem that needs the solution of power line operation construction.
Disclosure of Invention
In order to solve the problems, the invention provides a totally-enclosed construction protection pulley for a high-voltage transmission line, which adopts the following technical scheme:
a totally-enclosed construction protection pulley for a high-voltage transmission line comprises: the device comprises a frame body, a first pulley and a second pulley, wherein the radius of the second pulley is larger than that of the first pulley; the first pulley and the second pulley are rotatably arranged on the frame body, and the first pulley is positioned right above the second pulley; the first pulley, the second pulley and the frame body enclose a working area for sliding along a line, guiding the line and enclosing the line.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the frame body comprises a left frame, an upper frame and a right frame which are connected in sequence and form an inverted U-shaped shape; the first pulley and the second pulley are installed between the left frame and the right frame.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the left frame is provided with a movable section at the working area, and the movable section is movably connected with the left frame and used for providing a gap for placing a line.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the one end of activity district section is the hinged end, and the other end is the joint end, the hinged end with left side frame hinged connection, the joint end with left side frame joint is connected.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the clamping end is positioned above the hinged end.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the hinged end comprises a hinged shaft and a shaft sleeve; the two ends of the hinge shaft are arranged on the left frame, and the shaft sleeve is sleeved on the outer side of the middle of the hinge shaft and is rotatably connected with the hinge shaft.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the inboard of hinged end is equipped with spacing face, spacing face can with left frame butt is used for with the rotation range of hinged end limits to can only outside rotation not more than 180.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the clamping end comprises a clamping plate, and a clamping hole is formed in the clamping plate; the left frame is provided with a first rotating buckle, and the first rotating buckle is used for penetrating through the clamping hole and is clamped outside the clamping plate after rotation.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the movable section and the right frame are both arranged in an outward concave mode at the working area, and the working area can allow at least objects with the cross section diameter of 10cm to pass through.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the outer concave shapes of the movable section and the right frame are both arc-shaped.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the upper frame is provided with a buckle which is rotatably connected with the upper frame; the buckle is the hook type, is equipped with the shutoff board at the opening part, the shutoff board with the rotatable connection of buckle is used for the shutoff the opening of buckle.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the first pulley is mounted on the frame body through a first wheel shaft, one end of the first wheel shaft is provided with a first step, and the other end of the first wheel shaft is provided with a first nut which is used for being fastened on two sides of the frame body; the second pulley is installed on the frame body through a second wheel shaft, one end of the second wheel shaft is provided with a second step, and the other end of the second wheel shaft is provided with a second nut for fastening two sides of the frame body.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the second pulley with left side frame welded connection, with right side frame joint is connected, is used for preventing left side frame rotates.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the first pulley body of the first pulley is provided with an inwards concave arc-shaped recess on the circumferential surface and is used for being matched with a circuit; the second wheel body of the second pulley is provided with an inwards concave arc-shaped recess on the circumferential surface and used for accommodating a circuit.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the diameter of the first wheel body is 7 to 8 times of the diameter of the circuit; the diameter of the second wheel body is 15 to 30 times of the diameter of the line.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the first wheel body and the second wheel body are made of nylon materials, and the side walls of the first wheel body and the second wheel body are hollow.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the frame body is made of aluminum alloy materials or stainless steel materials.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the cross section of the frame body is U-shaped, and the opening deviates from the first pulley and the second pulley.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the wall thickness of the frame body is not less than 5 mm.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the frame body further comprises a lower frame, and two ends of the lower frame are respectively connected with the left frame and the right frame; the lower frame is provided with a crimping groove, and a press-fitting bolt is arranged in the crimping groove and used for being matched with an external object of the crimping groove.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the press-fitting bolts are multiple.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the auxiliary pulley comprises a pulley frame and an auxiliary pulley; the U-shaped sliding frame is characterized in that the additional pulleys are arranged on the left side wall and the right side wall of the sliding frame through pulley shafts; the sliding frame is provided with a unthreaded hole, the frame body is provided with an expanding threaded hole, the expanding threaded hole is positioned below the second pulley, and the unthreaded hole is connected with the expanding threaded hole through an additional bolt; and the additional pulley, the second pulley and the trolley frame enclose an additional working area for realizing the spanning net sealing to replace the two split conductors.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the number of the expansion threaded holes and the number of the unthreaded holes are two and are arranged up and down.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the additional wheel body of the additional pulley is provided with an inwards concave arc-shaped recess on the circumferential surface for accommodating a circuit.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the diameter of the additional wheel body is 15 to 30 times of the diameter of the line.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the additional wheel body is made of nylon materials, and the side wall of the additional wheel body is hollow.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the sliding frame is made of aluminum alloy materials or stainless steel materials.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the cross section of the sliding frame is U-shaped, the wall thickness is not less than 5mm, and the opening deviates from the additional pulley.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the two sides of the sliding frame are arranged in an outward concave mode at the additional working area, and the sliding frame is used for enabling the additional working area to allow at least objects with the cross section diameter of 10cm to pass through.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the outer concave shape of the scooter frame is arc-shaped.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: an additional section is arranged at the additional working area of the tackle frame, one end of the additional section is hinged with the tackle frame, and the other end of the additional section is connected with the frame body in a clamping manner; the rack body is provided with a second rotary buckle for clamping the additional section, and the second rotary buckle is located below the axis of the second pulley and used for clamping the additional section.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: and an additional pressure connecting groove is formed in the bottom of the sliding frame, and an additional press-fitting bolt is arranged in the additional pressure connecting groove and used for being matched with an external object of the additional pressure connecting groove.
The totally-enclosed construction protection pulley for the high-voltage transmission line further preferably comprises the following components: the additional press-fitting bolts are multiple.
Analysis shows that compared with the prior art, the invention has the advantages and beneficial effects that:
when the totally-enclosed construction protection tackle for the high-voltage transmission line is used for replacing the line, the totally-enclosed protection can be carried out on the old line, the old line is prevented from falling off, and the totally-enclosed protection can be carried out on the line in the line replacement process. Based on the totally-enclosed construction protection pulley for the high-voltage transmission line, construction operations such as newly building a lead at the crossing part of the transmission line, replacing the lead at the crossing part of the transmission line and the like can be carried out. The totally-enclosed construction protection tackle for the high-voltage transmission line can replace the traditional manual operation mode, and can avoid the falling and swinging of the line in a mechanical mode, thereby effectively reducing the potential safety hazard problem, simplifying the operation process, improving the operation construction efficiency, effectively solving the problem of high difficulty in construction coordination, saving a large amount of manpower, financial resources and material resources, and having good economic benefit and social benefit.
Drawings
Fig. 1 is a structural schematic diagram I of a totally-enclosed construction protection tackle for a high-voltage transmission line.
Fig. 2 is a structural schematic diagram II of a totally-enclosed construction protection pulley for a high-voltage transmission line.
Fig. 3 is a third structural schematic diagram of a totally-enclosed construction protection pulley for a high-voltage transmission line.
Fig. 4 is a fourth structural schematic diagram of the totally-enclosed construction protection pulley for the high-voltage transmission line.
Fig. 5 is a using state diagram of the totally-enclosed construction protection tackle for the high-voltage transmission line.
Fig. 6 is a fifth structural schematic diagram of the totally-enclosed construction protection pulley for the high-voltage transmission line.
Fig. 7 is a sixth structural schematic diagram of the totally-enclosed construction protection pulley for the high-voltage transmission line.
Fig. 8 is a seventh structural schematic diagram of the totally-enclosed construction protection pulley for the high-voltage transmission line.
Fig. 9 is an eighth schematic structural view of a totally-enclosed construction protection pulley for a high-voltage transmission line.
Fig. 10 is a nine-structure schematic diagram of the totally-enclosed construction protection pulley for the high-voltage transmission line.
Fig. 11 is a frame body schematic diagram of the totally-enclosed construction protection pulley for the high-voltage transmission line.
In the figure: 1-an upper frame; 2-buckling; 3-a right frame; 4-a first axle; 5-a first wheel body; 6-a first rotary buckle; 7-an active section; 8-a hinge shaft; 9-a second axle; 10-a second wheel body; 11-a second rotary buckle; 12-a left frame; 13-a first nut; 14-anti-rotation clamping groove; 15-second nut tightening; 16-expanding the threaded hole; 17-an additional pulley; 18-crimping slot.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
Referring to fig. 1 to 11, fig. 1 is a first structural schematic diagram of a fully-enclosed construction protection tackle for a high-voltage transmission line; FIG. 2 is a structural schematic diagram II of a totally-enclosed construction protection pulley for a high-voltage transmission line; FIG. 3 is a third structural schematic diagram of a totally-enclosed construction protection pulley for a high-voltage transmission line; FIG. 4 is a fourth structural schematic diagram of a totally-enclosed construction protection pulley for a high-voltage transmission line; FIG. 5 is a diagram of the use state of the totally-enclosed construction protection pulley for the high-voltage transmission line; FIG. 6 is a fifth structural schematic diagram of a totally-enclosed construction protection pulley for the high-voltage transmission line; FIG. 7 is a sixth structural schematic diagram of a totally-enclosed construction protection pulley for a high-voltage transmission line; FIG. 8 is a seventh structural schematic diagram of a totally-enclosed construction protection pulley for a high-voltage transmission line; fig. 9 is an eighth structural schematic diagram of a totally-enclosed construction protection pulley for a high-voltage transmission line; FIG. 10 is a ninth structural schematic diagram of a totally-enclosed construction protection pulley for a high-voltage transmission line; fig. 11 is a frame body schematic diagram of the totally-enclosed construction protection pulley for the high-voltage transmission line.
The invention provides a totally-enclosed construction protection pulley for a high-voltage transmission line, which mainly comprises a frame body, a first pulley and a second pulley, wherein the radius of the second pulley is larger than that of the first pulley. The first pulley and the second pulley are rotatably arranged on the frame body, and the first pulley is positioned right above the second pulley, so that the first pulley, the second pulley and the frame body enclose a working area, and the totally-enclosed construction protection pulley for the high-voltage transmission line can slide along the line, provide a lead for the line and enclose the line during construction operation.
When the power line is in operation construction, the line is placed in a working area, and the first pulley is erected on the line and can slide along the line. Taking a circuit replacement as an example, the totally-enclosed construction protection pulleys of the high-voltage transmission lines are matched for use, and the adjacent frame bodies are mutually connected through the traction ropes, so that the totally-enclosed construction protection pulleys of the high-voltage transmission lines can be distributed at intervals on the circuit, the totally-enclosed construction protection pulleys of the high-voltage transmission lines at the end parts are pulled by the traction device, and the totally-enclosed construction protection pulleys of the high-voltage transmission lines can be pulled to slide on the circuit. When the tower slides to the tower on the other side from the tower on one side, the traction ropes are connected with the towers on the two sides, so that the totally-enclosed construction protection pulleys of the high-voltage transmission lines are connected between the two towers through the traction ropes. When the circuit is replaced, the old wire is detached and falls on the second pulleys, so that the old wire can be protected in a fully-closed mode, the old wire is prevented from falling off, and the circuit can be protected in a closed mode in the process of replacing the circuit. Based on the totally-enclosed construction protection pulley for the high-voltage transmission line, construction operations such as newly building a lead at the crossing part of the transmission line, replacing the lead at the crossing part of the transmission line and the like can be carried out. The radius of the second pulley is larger than that of the first pulley, so that the totally-enclosed construction protection pulley of the high-voltage transmission line is ensured to be in a working state with the second pulley below and the first pulley above, the problems of deflection, inversion and the like are avoided, and the construction operation is smoother. The totally-enclosed construction protection tackle for the high-voltage transmission line can replace the traditional manual operation mode, and can avoid the falling and swinging of the line in a mechanical mode, thereby effectively reducing the potential safety hazard problem, simplifying the operation process, improving the operation construction efficiency, effectively solving the problem of high difficulty in construction coordination, saving a large amount of manpower, financial resources and material resources, and having good economic benefit and social benefit.
Specifically, in the present invention, the frame body comprises a left frame 12, an upper frame 1 and a right frame 3 which are connected in sequence and form an inverted U shape, and a first pulley and a second pulley are installed between the left frame 12 and the right frame 3, and the second pulley is closer to the U-shaped opening than the first pulley. Left frame 12 is equipped with activity district 7 in workspace department, and activity district 7 and left frame 12 swing joint can open and close, can form a breach when opening on left frame 12 for put into workspace with leading, ground wire or haulage rope, can close the breach when closing, prevent to lead, ground wire or the enlightening nima rope is deviate from by the workspace. The frame body is of an inverted U-shaped shape, the lower part of the frame body is provided with an opening, and the full-closed construction of the high-voltage transmission line can be allowed to protect an external object of the pulley so as to expand the use function (for example, a pulley is connected below the second pulley, and a working area is formed in addition, so that the two-split lead can be replaced by crossing a net. When the movable section 7 is opened, in order to prevent the movable section 7 and the part of the left frame 12, which is positioned below the movable section 7, from rotating along the axis of the second pulley, when the second pulley is connected with the left frame 12 and the right frame 3, the second pulley is welded with the left frame 12 and is clamped with the right frame 3, the right frame 3 is provided with an anti-rotation clamping groove 14, when a shaft (a second wheel shaft 9) of the second pulley passes through the anti-rotation clamping groove, the shaft (the second wheel shaft 9) of the second pulley can be prevented from rotating, so that the left frame 12 can be prevented from rotating, and the expansion use function of the totally-closed construction protection pulley for the high-voltage transmission line can not be influenced.
In the invention, one end of the movable section 7 is a hinged end, the other end is a clamping end, the hinged end is hinged with the left frame 12, and the clamping end is clamped with the left frame 12. When the movable section 7 is opened, the movable section 7 rotates along the hinged end, and the clamping end is separated from the left frame 12 to form a gap. In structural design, the clamping end is positioned above the hinged end, so that the movable section 7 can play a certain enclosing role for a guide wire, a ground wire or a traction rope in a working area when being opened.
As a concrete realisable form of the movable section 7, in the present invention, the hinged end includes a hinge shaft 8 and a bushing. The two ends of the hinge shaft 8 are arranged on the left frame 12, and the shaft sleeve is sleeved in the middle of the hinge shaft 8 and positioned on the outer side of the circumferential surface and can rotate around the hinge shaft 8, so that the movable section 7 is driven to rotate. The clamping end comprises a clamping plate, the clamping plate is connected to the movable section 7, and a clamping hole is formed in the clamping plate. The left frame 12 is provided with a first rotary catch 6 on a portion located above the movable section 7, and the first rotary catch 6 is rotatable on the left frame 12. The shape of the clamping hole is the same as that of the first rotary buckle 6. First rotatory buckle 6 is preferred circular in circumference, and is equipped with the arch that surpasss circular profile, and when the joint activity section 7, first rotatory buckle 6 passes the joint hole on the joint board, then rotates first rotatory buckle 6, and first rotatory buckle 6 can joint board to realize closing of activity section 7.
Further, as the optimization of the range of motion of the movable section 7, the inner side of the hinged end is provided with a limiting surface, and when the movable section 7 is opened, the movable section can rotate (turn over towards the direction far away from the first pulley) around the hinge shaft 8 towards the outer side of the left frame 12; when the movable section 7 is closed and rotates to the closed position, the limiting surface above the hinge shaft 8 is just abutted to the left frame 12, so that the movable section 7 can be prevented from being turned to a working area, and the rotation range of the hinged end is limited to be capable of only rotating outwards by not more than 180 degrees. The movable section 7 of the invention can not turn over to the working area when rotating, thereby not occupying the space of the working area and facilitating the installation of the guide wire, the ground wire and the traction rope.
In order to facilitate the smooth sliding of the fully-closed construction protection pulley of the high-voltage transmission line, in the invention, the movable section 7 and the right frame 3 are both arranged in an outward concave manner at the working area, so that the space of the working area can be enlarged, and objects with the cross section diameter of 10cm (such as the connection position of new and old wires) can be allowed to pass through at least in the working area. As a preferred embodiment, in the present invention, the outer concave shapes of the movable section 7 and the right frame 3 are both arc-shaped, so that the junction between the movable section and the upper frame and the junction between the movable section and the right frame can be smoothly transited, which is convenient for processing and forming, and can also avoid the problems of stress concentration and the like, thereby improving the structural strength of the frame body. The arc-shaped outer concave parts of the movable section 7 and the right frame 3 can enable a working area to easily pass through a wiring position, when a lead and a ground wire are replaced at a crossing position of a power transmission line, the lead and the ground wire can sequentially penetrate through a plurality of equidistant pulley gaps, crossing and net sealing can be realized, and the lead and the ground wire are replaced in full-closed protection. Of course, in other embodiments of the present invention, the movable section 7 and the right frame 3 may not be disposed in an outwardly concave manner at the working area, and both the left frame 12 and the right frame 3 are linear profiles.
In order to facilitate the connection and fixation of the traction rope, in the invention, the upper frame 1 is provided with the buckle 2, and the buckle 2 is preferably rotatably connected with the upper frame 1, so that the pose of the buckle 2 is convenient to adjust. Buckle 2 is the hook type, is equipped with the shutoff board at the opening part, and the shutoff board can block off the opening of buckle 2 with 2 rotatable connections of buckle, avoids the haulage rope unhook. The buckle 2 has an automatic locking function, and can be locked on the traction rope through the buckle 2 when crossing the net sealing and replacing the lead and the ground wires, so that an effective fulcrum exists in the process of replacing the lead and the ground wires.
In order to facilitate the installation and the disassembly of the first pulley and the second pulley, in the invention, the first pulley is installed on the frame body through the first wheel shaft 4, one end of the first wheel shaft 4 is provided with a first step, and the other end of the first wheel shaft 4 is provided with a first nut 13, so that the first pulley can be fastened on two sides (the outer sides of the left frame 12 and the right frame 3) of the frame body, and when the first pulley needs to be disassembled and maintained, the first nut 13 is unscrewed, so that the first pulley can be disassembled. The second pulley passes through second shaft 9 to be installed on the support body, and 9 one end of second shaft are equipped with the second step, and the other end is equipped with the second nut, can fasten the both sides at the support body. The second step is connected with the left frame 12 in a welding mode, the circumferential surface of the other end of the second wheel shaft 9 is subjected to milling or grinding treatment at the position matched with the anti-rotation clamping groove 14, a plane is machined, the plane can penetrate through the anti-rotation clamping groove 14 and then is in threaded connection with a second nut, and the second wheel shaft 9 is guaranteed not to rotate axially.
In order to facilitate guiding and enclosing, the first wheel body 5 of the first pulley is provided with an inwards concave arc-shaped recess on the circumferential surface, can be matched with a circuit (or a traction rope), increases the contact area and the friction force, plays a certain guiding and limiting role, and facilitates the sliding of the totally-enclosed construction protection pulley of the high-voltage transmission line. The second wheel body 10 of the second pulley is provided with an inwards concave arc-shaped recess on the circumferential surface, can accommodate a detached line, encloses the line, plays a role in blocking a net, can also enlarge the space of a working area, and is compact in the structural layout of the totally-enclosed construction protection pulley of the high-voltage transmission line.
In order to facilitate sliding along the wire and to protect the new wire, in the present invention, the diameter of the first wheel 5 is 7 to 8 times the diameter of the wire, enabling a relatively large single-turn stroke of the first wheel 5. The diameter of the second wheel body 10 is 15 to 30 times of the diameter of the line, for example, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, and the profile of the second wheel body 10 can be increased, so that the profile of the second wheel body 10 is relatively flat, and when a new line is placed on the second wheel body 10, the new line is not easily scattered, and the new line can be effectively protected.
In the invention, the structural form of the frame body has two options, one of which is that the overall outline of the frame body is inverted U-shaped, which is convenient for the totally-closed construction of the high-voltage transmission line to protect the pulley and then connect an object externally so as to expand the use function of the pulley. Secondly, the overall outline of the frame body is similar to a rectangle, and the frame body also comprises a lower frame, wherein two ends of the lower frame are respectively connected with the left frame 12 and the right frame 3. When the frame body is provided with the lower frame, the lower frame is provided with the press connection groove 18, and the press connection groove 18 is internally provided with the press mounting bolt which can be matched with an external object of the press connection groove 18. The press-fitting bolts are preferably two. When the frame body of the totally-enclosed construction protection tackle for the high-voltage transmission lines is provided with the lower frame, the totally-enclosed construction protection tackle for the high-voltage transmission lines can work in a coordinated mode, for example, the totally-enclosed construction protection tackle for the high-voltage transmission lines is symmetrically distributed on two lines, the totally-enclosed construction protection tackle for the high-voltage transmission lines on the two lines are in one-to-one correspondence, and the compression joint grooves 18 of the two totally-enclosed construction protection tackle for the high-voltage transmission lines corresponding to each other can be connected with a net rope, a net rod and the like.
As a function expansion of the totally-closed construction protection pulley for the high-voltage transmission line, when the frame body is in an inverted U shape, the frame body can be connected with an additional pulley, namely the totally-closed construction protection pulley for the high-voltage transmission line further comprises the additional pulley. The additional pulley comprises a pulley frame and additional pulleys 17, particularly the pulley frame is U-shaped, and the additional pulleys 17 are arranged on the left side wall and the right side wall of the pulley frame through pulley shafts. When being connected with the support body, be equipped with the unthreaded hole on the right side lateral wall of smooth frame, be equipped with on the right frame 3 of support body and expand screw hole 16, expand screw hole 16 and be located the below of second pulley, the diameter of unthreaded hole is greater than the diameter of expanding screw hole 16 but is less than the nut external diameter of additional bolt. The unthreaded hole is connected with the expanded threaded hole 16 through an additional bolt, so that the additional pulley is connected with the frame body. After the two split wires are connected into a whole, the additional pulley 17, the second pulley and the sliding frame enclose an additional working area, and the two split wires can be replaced by crossing the net sealing.
Furthermore, in the invention, the number of the expanded threaded holes 16 and the number of the unthreaded holes are two and are arranged up and down, so that the connection strength of the frame body and the additional pulley can be enhanced, and the relative operation of the frame body and the additional pulley can be prevented.
Further, in the present invention, the additional wheel body of the additional pulley 17 is provided with an inwardly concave arc-shaped recess on the circumferential surface, which can accommodate the replaced old wire. Preferably, the diameter of the additional wheel body is 15 times to 30 times of the diameter of the line, and the diameter of the additional wheel body is preferably consistent with the diameter of the second wheel body 10, so that the interchangeability of the fully-closed construction protection tackle parts of the high-voltage transmission line can be improved.
Furthermore, in the invention, the two sides of the sliding trolley frame are both arranged in an outward concave manner at the additional working area, so that the additional working area can at least allow objects with the cross section diameter of 10cm to pass through, and the totally-enclosed construction protection pulley of the high-voltage transmission line can conveniently pass through the connection part of a new line and an old line. Preferably, the concave exterior shape of the skate frame is arcuate.
Furthermore, in order to facilitate the placement of a guide wire, a ground wire or a traction rope in an additional working area, in the invention, the tackle bracket is provided with an additional section at the additional working area, one end of the additional section is hinged with the tackle bracket, and the other end of the additional section is connected with the bracket in a clamping manner. Specifically, the frame body is provided with a second rotary buckle 11 for clamping the additional section, and the second rotary buckle 11 is located below the axis of the second pulley and can be clamped with the additional section. Preferably, in the present invention, the rotation range of the additional section is only capable of rotating to the outer side of the carriage by not more than 180 °, and the hinged end is located below the clamped end.
Further, in the invention, the bottom of the sliding frame is provided with an additional pressing connecting groove, and an additional pressing bolt is arranged in the additional pressing connecting groove and can be matched with an object (such as a net rope, a net rod and the like) externally connected with the additional pressing connecting groove. Preferably, the number of the additional press-fitting bolts is two.
In terms of material selection and structural design, the first wheel body 5, the second wheel body 10 and the additional wheel body are all made of nylon materials, so that the weight can be reduced. The frame body and the sliding frame are made of aluminum alloy materials or stainless steel materials, so that the service life can be prolonged. The frame body and the sliding frame can be made of section bars or plates by stamping, and the wall thickness is not less than 5 mm. In the design of the cross section shape, the cross sections of the frame body and the sliding frame are U-shaped, and the openings face to the outside (the U-shaped opening of the cross section of the frame body deviates from the first pulley and the second pulley, and the U-shaped opening of the cross section of the sliding frame deviates from the additional pulley 17), so that the weight is reduced, the structural strength is not reduced, and the structures of the frame body and the sliding frame are firm and reliable.
As shown in fig. 1 to 10, the function of the fully-closed construction protection tackle for the high-voltage transmission line of the invention is described below by taking two specific embodiments as examples:
the first embodiment is as follows: and replacing the lead at the crossing part of the power transmission line.
The method comprises the steps that firstly, a plurality of high-voltage transmission line totally-enclosed construction protection pulleys are pulled on an old lead to be replaced by utilizing a pulling device, adjacent high-voltage transmission line totally-enclosed construction protection pulleys are connected through a pulling rope (a Dinima rope), and the old lead is sequentially placed in a working area. The method is specifically realized in such a way that one end of a traction rope is fixed on a tower on one side, the traction equipment pulls a totally-enclosed construction protection tackle of the high-voltage transmission line to walk on an old wire from the side of the side tower, and the traction equipment is taken down from the old wire until the traction equipment reaches the opposite tower, and the other end of the Dinima is fixed on the tower.
And step two, releasing the old lead from the tower, automatically dropping the old lead on the second pulley, and sealing and protecting the lead by the working area to realize circuit screen sealing and avoid the lead from falling to a crossing object below.
And thirdly, connecting the new and old wires, and through the cooperation of a tension machine and a traction machine, utilizing the new wire to draw the old wire, sequentially passing through a plurality of working areas, performing wire changing work and simultaneously ensuring the sealing protection of the new and old wires in the whole wire changing process.
And fourthly, after the new lead is replaced, loosening the traction rope from towers on two sides, pulling the traction rope at one end of the traction rope, gradually withdrawing the traction rope, taking down the totally-enclosed construction protection pulley of the high-voltage transmission line one by one, and completing the work of replacing the lead at the crossing position of the whole transmission line.
Example two: and newly building a lead at the crossing part of the power transmission line.
The first step, put the small rope with unmanned aerial vehicle at both sides looks wire position exhibition earlier, rethread small rope area big rope mode uses the small rope to pull the haulage rope that the wire will be pulled from one side shaft tower to offside shaft tower to exert tension.
And secondly, the two traction devices are utilized to respectively draw a plurality of high-voltage transmission line totally-enclosed construction protection pulleys between two towers along the directions of the two-side phase wires, the front high-voltage transmission line totally-enclosed construction protection pulleys and the rear high-voltage transmission line totally-enclosed construction protection pulleys are connected by another traction rope, meanwhile, net ropes or net poles are hung between the two-side-opposite high-voltage transmission line totally-enclosed construction protection pulleys, the traction devices are taken off from the two-side phase traction ropes after being drawn to the opposite tower from one tower, and the traction ropes connecting the plurality of high-voltage transmission line totally-enclosed construction protection pulleys are fixed on the towers at two sides to finish net sealing.
And thirdly, erecting a ground wire and a middle phase lead by matching a tension machine and a tractor, and carrying out closed protection by virtue of a net rope or a net rod arranged between the high-voltage transmission line totally-closed construction protection pulleys opposite to each other in pairs at the two sides of the middle phase lead to prevent the ground wire and the ground wire from falling to a crossing object below.
And fourthly, after the ground wire and the middle phase conductor are finished, drawing the two side phase conductors through the traction rope by means of sealing protection of a working area, and finishing erection work of the two side phase conductors.
And fifthly, after the two-side phase conductors are erected, the traction ropes tied on the towers on the two sides are loosened, one end of each traction rope is pulled, the traction ropes are gradually retracted, the totally-enclosed construction protection pulleys of the high-voltage transmission line are taken down one by one, and the conductor is newly built at the crossing position of the whole transmission line.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. The above examples of the invention are only individual examples of the application occasions of the totally-enclosed construction protection pulley for the high-voltage transmission line, and are not limited to the application of the totally-enclosed construction protection pulley for the high-voltage transmission line. For example, when a nearby operation line is constructed by reconstruction and extension or newly-built lines or a line which runs on one side of the same tower and double loops is encountered, the totally-enclosed construction protection pulley of the high-voltage transmission line can be used for replacing and erecting the lead and the ground wires in an auxiliary matching manner. Therefore, all changes that come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (14)
1. The utility model provides a totally closed construction protection coaster of high tension transmission line which characterized in that includes:
the device comprises a frame body, a first pulley and a second pulley, wherein the radius of the second pulley is larger than that of the first pulley; the first pulley and the second pulley are rotatably arranged on the frame body, and the first pulley is positioned right above the second pulley; the first pulley, the second pulley and the frame body enclose a working area for sliding along a line, guiding the line and enclosing the line; the frame body comprises a left frame, an upper frame and a right frame which are connected in sequence and form an inverted U-shaped shape; the left frame is provided with a movable section at the working area, is movably connected with the left frame and is used for providing a gap for placing a line; the second pulley with left side frame welded connection, with right side frame joint is connected, is used for preventing left side frame rotates.
2. The totally-enclosed construction protection pulley for the high-voltage transmission line according to claim 1, characterized in that:
the first pulley and the second pulley are installed between the left frame and the right frame;
one end of the movable section is a hinged end, the other end of the movable section is a clamping end, the hinged end is hinged with the left frame, and the clamping end is clamped with the left frame;
the clamping end is positioned above the hinged end.
3. The totally-enclosed construction protection pulley for the high-voltage transmission line according to claim 2, characterized in that:
the hinged end comprises a hinged shaft and a shaft sleeve;
the two ends of the hinge shaft are arranged on the left frame, and the shaft sleeve is sleeved on the outer side of the middle part of the hinge shaft and is rotatably connected with the hinge shaft;
the inner side of the hinged end is provided with a limiting surface which can be abutted against the left frame and is used for limiting the rotation range of the hinged end to be only capable of rotating outwards for no more than 180 degrees;
the clamping end comprises a clamping plate, and a clamping hole is formed in the clamping plate;
the left frame is provided with a first rotating buckle, and the first rotating buckle is used for penetrating through the clamping hole and is clamped outside the clamping plate after rotation.
4. The totally-enclosed construction protection pulley for the high-voltage transmission line according to claim 2, characterized in that:
the movable section and the right frame are both arranged in an outward concave mode at the working area and used for enabling objects with the cross section diameter of 10cm to pass through the working area at least;
the outer concave shapes of the movable section and the right frame are both arc-shaped.
5. The totally-enclosed construction protection pulley for the high-voltage transmission line according to claim 2, characterized in that:
the upper frame is provided with a buckle which is rotatably connected with the upper frame;
the buckle is the hook type, is equipped with the shutoff board at the opening part, the shutoff board with the rotatable connection of buckle is used for the shutoff the opening of buckle.
6. The totally-enclosed construction protection pulley for the high-voltage transmission line according to claim 2, characterized in that:
the first pulley is mounted on the frame body through a first wheel shaft, one end of the first wheel shaft is provided with a first step, and the other end of the first wheel shaft is provided with a first nut which is used for being fastened on two sides of the frame body;
the second pulley is installed on the frame body through a second wheel shaft, one end of the second wheel shaft is provided with a second step, and the other end of the second wheel shaft is provided with a second nut for fastening two sides of the frame body.
7. The totally-enclosed construction protection pulley for the high-voltage transmission line according to claim 1, characterized in that:
the first pulley body of the first pulley is provided with an inwards concave arc-shaped recess on the circumferential surface and is used for being matched with a circuit;
the second pulley body of the second pulley is provided with an inwards concave arc-shaped recess on the circumferential surface and is used for accommodating a circuit;
the diameter of the first wheel body is 7 to 8 times of the diameter of the circuit;
the diameter of the second wheel body is 15 to 30 times of the diameter of the line.
8. The totally-enclosed construction protection pulley for the high-voltage transmission line according to claim 7, characterized in that:
the first wheel body and the second wheel body are both made of nylon materials, and the side walls of the first wheel body and the second wheel body are hollow;
the frame body is made of aluminum alloy materials or stainless steel materials;
the cross section of the frame body is U-shaped, and the opening of the frame body deviates from the first pulley and the second pulley;
the wall thickness of the frame body is not less than 5 mm.
9. The totally-enclosed construction protection pulley for the high-voltage transmission line according to claim 2, characterized in that:
the frame body further comprises a lower frame, and two ends of the lower frame are respectively connected with the left frame and the right frame;
the lower frame is provided with a crimping groove, a plurality of press-fitting bolts are arranged in the crimping groove and used for being matched with an external object of the crimping groove.
10. The totally-enclosed construction protection pulley for the high-voltage transmission line according to any one of claims 1 to 8, characterized in that:
the auxiliary pulley comprises a pulley frame and an auxiliary pulley;
the U-shaped sliding frame is characterized in that the additional pulleys are arranged on the left side wall and the right side wall of the sliding frame through pulley shafts;
the sliding frame is provided with a unthreaded hole, the frame body is provided with an expanding threaded hole, the expanding threaded hole is positioned below the second pulley, and the unthreaded hole is connected with the expanding threaded hole through an additional bolt;
the number of the expanded threaded holes and the number of the unthreaded holes are two and are arranged up and down;
and the additional pulley, the second pulley and the trolley frame enclose an additional working area for realizing the spanning net sealing to replace the two split conductors.
11. The totally-enclosed construction protection tackle of the high-tension transmission line of claim 10, characterized in that:
the circumferential surface of the additional wheel body of the additional pulley is provided with an inwards concave arc-shaped recess for accommodating a circuit;
the diameter of the additional wheel body is 15 to 30 times of the diameter of the circuit;
the additional wheel body is made of nylon materials, and the side wall of the additional wheel body is hollow;
the cross section of the sliding frame is U-shaped, the wall thickness is not less than 5mm, and the opening deviates from the additional pulley;
the sliding frame is made of aluminum alloy materials or stainless steel materials.
12. The totally-enclosed construction protection tackle of the high-tension transmission line of claim 10, characterized in that:
the two sides of the sliding frame are both arranged in an outward concave mode at the additional working area and used for enabling objects with the cross section diameter of 10cm to pass through at least the additional working area;
the outer concave shape of the scooter frame is arc-shaped.
13. The totally-enclosed construction protection tackle of the high-tension transmission line of claim 10, characterized in that:
an additional section is arranged at the additional working area of the tackle frame, one end of the additional section is hinged with the tackle frame, and the other end of the additional section is connected with the frame body in a clamping manner;
the rack body is provided with a second rotary buckle for clamping the additional section, and the second rotary buckle is located below the axis of the second pulley and used for clamping the additional section.
14. The totally-enclosed construction protection tackle of the high-tension transmission line of claim 10, characterized in that:
the bottom of the sliding frame is provided with an additional pressure connecting groove, additional pressure-mounting bolts are arranged in the additional pressure connecting groove, and the additional pressure-mounting bolts are used for being matched with objects externally connected with the additional pressure connecting groove.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110572540 | 2021-05-25 | ||
| CN2021105725407 | 2021-05-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113644589A true CN113644589A (en) | 2021-11-12 |
| CN113644589B CN113644589B (en) | 2023-03-31 |
Family
ID=78422040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110937630.1A Active CN113644589B (en) | 2021-05-25 | 2021-08-16 | Totally-enclosed construction protection pulley for high-voltage transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113644589B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202837643U (en) * | 2012-11-05 | 2013-03-27 | 衡水供电公司 | Anti-wire jumping and wire clamping optical cable linear tackle |
| CN103490342A (en) * | 2013-09-22 | 2014-01-01 | 国家电网公司 | Double-bundled-conductor hoisting frame with idler wheels |
| CN203624931U (en) * | 2013-10-25 | 2014-06-04 | 国家电网公司 | Hoisting tackle rotating in one-way mode |
| CN204131006U (en) * | 2014-10-28 | 2015-01-28 | 国网山东蓬莱市供电公司 | Novel traction pulley |
| CN204577983U (en) * | 2015-04-30 | 2015-08-19 | 国网山西省电力公司信息通信分公司 | A kind of coaster setting up leads span net |
| GB201619977D0 (en) * | 2016-11-25 | 2017-01-11 | Slingco Ltd | Improvements in or for pulley blocks |
| CN206349692U (en) * | 2016-12-09 | 2017-07-21 | 无锡德成机电安装有限公司 | A kind of slight drag upturned tackle |
-
2021
- 2021-08-16 CN CN202110937630.1A patent/CN113644589B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202837643U (en) * | 2012-11-05 | 2013-03-27 | 衡水供电公司 | Anti-wire jumping and wire clamping optical cable linear tackle |
| CN103490342A (en) * | 2013-09-22 | 2014-01-01 | 国家电网公司 | Double-bundled-conductor hoisting frame with idler wheels |
| CN203624931U (en) * | 2013-10-25 | 2014-06-04 | 国家电网公司 | Hoisting tackle rotating in one-way mode |
| CN204131006U (en) * | 2014-10-28 | 2015-01-28 | 国网山东蓬莱市供电公司 | Novel traction pulley |
| CN204577983U (en) * | 2015-04-30 | 2015-08-19 | 国网山西省电力公司信息通信分公司 | A kind of coaster setting up leads span net |
| GB201619977D0 (en) * | 2016-11-25 | 2017-01-11 | Slingco Ltd | Improvements in or for pulley blocks |
| CN206349692U (en) * | 2016-12-09 | 2017-07-21 | 无锡德成机电安装有限公司 | A kind of slight drag upturned tackle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113644589B (en) | 2023-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110797801B (en) | Electric power construction tensioner bullwheel | |
| CN102354926A (en) | Large-section conductor tension stringing construction method | |
| CN109842082A (en) | Cable bearer | |
| CN113644589B (en) | Totally-enclosed construction protection pulley for high-voltage transmission line | |
| CN108775196A (en) | A kind of lifting set up for power transmission tower and the combined mechanism that climbs certainly | |
| CN106025925B (en) | A kind of Operation Van of long-span electric transmission line maintenance | |
| CN106246094A (en) | A kind of novel mounting attachment and using method thereof | |
| DE69923481T2 (en) | MAST STRUCTURE | |
| CN205846578U (en) | A kind of Operation Van of long-span electric transmission line maintenance | |
| CN108988200A (en) | The method of somersault coaster is hung and taken on a kind of somersault coaster and overhead transmission line | |
| CN211790652U (en) | Cable mounting structure for power engineering | |
| CN212507654U (en) | Anti-climbing device for power transmission line iron tower | |
| CN209145390U (en) | A kind of durable power transmission rod for facilitating adjusting tension | |
| CN206611140U (en) | A kind of power overhead network reinforcement by connection device | |
| CN206144452U (en) | Novel supplementary ladder | |
| CN216436611U (en) | Anti-platform box-type substation | |
| CN216251945U (en) | Novel assembled strideing across equipment | |
| CN113653351B (en) | Safety protection device at bottom of steel construction pocket is encorbelmented greatly to large-span | |
| CN210053101U (en) | Overhead ground wire crossing frame | |
| CN110821264A (en) | Holding pole lifting frame and holding pole assembling method thereof | |
| CN215859285U (en) | Movable generator protection shed | |
| CN217680976U (en) | Fender is enclosed with construction to civil engineering | |
| CN219247435U (en) | Combined yoke plate | |
| CN208401401U (en) | The construction pulley of operation on a kind of overhead power transmission line pole tower | |
| CN219801854U (en) | Can have enough to meet need fixed hanging flower basket motor electric wire protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230807 Address after: 056004 48 Zhonghua North Street, Congtai District, Handan City, Hebei Province Patentee after: HANDAN POWER SUPPLY BRANCH OF STATE GRID HEBEI ELECTRIC POWER SUPPLY Co.,Ltd. Patentee after: HANDAN XINHE ELECTRIC POWER CONSTRUCTION CO.,LTD. Patentee after: STATE GRID CORPORATION OF CHINA Address before: 056004 48 Zhonghua North Street, Congtai District, Handan City, Hebei Province Patentee before: HANDAN POWER SUPPLY BRANCH OF STATE GRID HEBEI ELECTRIC POWER SUPPLY Co.,Ltd. Patentee before: HANDAN XINHE ELECTRIC POWER CONSTRUCTION CO.,LTD. Patentee before: STATE GRID CORPORATION OF CHINA Patentee before: HEBEI DEPU ELECTRIC CO.,LTD. |
|
| TR01 | Transfer of patent right |