CN111799696A - Tool for replacing ultra-high voltage transmission line clamp - Google Patents
Tool for replacing ultra-high voltage transmission line clamp Download PDFInfo
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- CN111799696A CN111799696A CN202010606516.6A CN202010606516A CN111799696A CN 111799696 A CN111799696 A CN 111799696A CN 202010606516 A CN202010606516 A CN 202010606516A CN 111799696 A CN111799696 A CN 111799696A
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- ratchet
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- 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
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Abstract
The invention provides a replacement tool for a wire clamp of an ultra-high voltage transmission line, which comprises a connecting plate fixedly connected with a connecting plate, wherein cross beams extending out of the left side and the right side of the connecting plate are arranged on the connecting plate, the connecting plate and the cross beams are in a vertical position relation, the tail ends of the cross beams on the left side and the right side of the connecting plate are respectively and rotatably connected with two rotating nuts, the rotating nuts are in threaded connection with lead screws, the lead screws are parallel to the connecting plate, one ends of the lead screws are provided with sleeves, the end parts of the two lead screws on the same side of the connecting plate, which are provided with the sleeves, are in opposite vertical directions, and the directions of. The device can improve the atress of branch wire during the operation of changing the fastener is gone on, and the protection branch wire is not impaired.
Description
Technical Field
The invention relates to the technical field of tools for power transmission equipment, in particular to a tool for replacing a wire clamp of an ultra-high voltage transmission line.
Background
The ultrahigh voltage transmission line is an important component of a modern power grid system and is an inevitable requirement for increasing power generation capacity and power load and prolonging transmission distance. Ultra-high voltage transmission is one of the important signs of the state of the art in the power industry. With the wide development of electric energy utilization, many countries build large-capacity hydropower stations, thermal power plants, nuclear power plants and power station groups, and power resources are often far away from load centers, so that power transmission tasks can be effectively and economically realized only by adopting ultrahigh-voltage power transmission. The ultra-high voltage transmission can increase the transmission capacity and the transmission distance, reduce the construction cost of unit power transmission, reduce the line loss, save the floor area of a line corridor, and have remarkable comprehensive economic and social benefits. In addition, the interconnection between large power systems also requires extra high voltage transmission to complete. If the 220 KV power transmission index is 100%, the relative investment of ultrahigh voltage power transmission per kilometer, the relative cost of transmitting hundreds of kilometers per kilowatt hour, the consumption of metal materials and the like are greatly reduced, and the utilization rate of a line corridor is obviously improved.
The ultrahigh voltage transmission line usually adopts a split conductor. The split conductor refers to a conductor erecting mode adopted by an extra-high voltage transmission line for restraining corona discharge and reducing line reactance. That is, each phase of wire is composed of several sub-wires with smaller diameter, and the sub-wires are arranged at a certain distance and in a symmetrical polygon shape and are arranged on the vertexes of the regular polygon. The number of the split conductors of the common split conductor is generally not more than 4, the number of the split conductors of the ultrahigh-voltage transmission line is generally 3-4, and 4 are adopted at present.
The split conductor can be provided with various hardware fittings, such as a yoke plate, a wire clamp and the like. And in the long-term operation process of the linear tower of the power transmission line, the wire clamp is broken and falls off due to the reasons of wire vibration, long operation life, reduced bearing capacity and the like, and great potential safety hazard is caused to the operation of the line. With the rapid development of power grids and the continuous improvement of power supply reliability requirements of users, the timely defect finding and defect elimination become the key points of the work of line operation and inspection personnel. Usually, a combined operation mode of a wire hanging device and a multi-split conductor wire lifting hook is adopted for treating the defects, wherein the insulating property of an insulating wire hanging rod (namely the wire hanging device) and the bearing capacity of the wire hanging rod are decisive factors for ensuring the operation safety and smooth development, and if a problem occurs, the serious consequence that the conductor discharges to an iron tower or falls off is caused.
The existing wire clamp replacing tools fixed on the connecting plates exist in the prior art, such as related tools with publication numbers of CN208299324U and CN107706822A, but when the wire clamp is replaced, the weight of the lifted branch conductor is transmitted to other branch conductors through the connecting plates, but particularly for even-number branch conductors, such as 4-split conductors, the branch conductor with the largest bearing force is the same side as the lifted branch conductor, while related stress conditions are not considered in the design of a large number of existing connecting plates, and the acting areas of the existing connecting plates and the branch conductors are limited, so that the acting force on the corresponding bearing branch conductor is too concentrated, and the branch conductor is damaged, thereby reducing the service life of the branch conductor.
Disclosure of Invention
The invention aims to solve the technical problem of providing a replacement tool for a wire clamp of an ultra-high voltage transmission line, which can improve the stress of a branch conductor when replacement operation is carried out.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides an extra-high voltage transmission line fastener replacement instrument, including be used for with yoke plate fixed connection's connecting plate be provided with the crossbeam that stretches out from the connecting plate left and right sides on the connecting plate, the connecting plate is the vertical position relation with the crossbeam, in the connecting plate left and right sides the end of crossbeam is rotated respectively and is connected with two swivel nuts, swivel nut threaded connection has the lead screw, the lead screw parallels with the connecting plate, the one end of lead screw is provided with the sleeve, to being in the connecting plate with two lead screws of one side, both are provided with telescopic tip and are the opposite orientation from top to bottom each other, whole telescopic orientation is perpendicular to connecting plate roughly.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the sleeve comprises a half sleeve A and a half sleeve B, the half sleeve A and the half sleeve B jointly surround to form a cylinder, the half sleeve A is connected with the screw rod, one side of the half sleeve B is rotatably connected with one side of the half sleeve A, and the other side of the half sleeve B is detachably connected with the other side of the half sleeve A.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: half a set A that the sleeve that is in the top has is provided with perpendicular to sleeve axis direction pivoted double-screw bolt, half B that the sleeve that is in the top has is provided with the flange, half A that the sleeve that is in the below has is provided with the flange, half B that the sleeve that is in the below has is provided with perpendicular to sleeve axis direction pivoted double-screw bolt, double-screw bolt threaded connection has lock nut, be provided with on the flange with the fluting of double-screw bolt and lock nut looks adaptation.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the half sleeve A is rotatably connected with the lead screw through a pin shaft, and the axial direction of the pin shaft is perpendicular to the axis of the lead screw and is parallel to the connecting plate.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the two rotating nuts positioned on the same side of the connecting plate are in equal ratio transmission through the gear, and the thread turning directions of the two rotating nuts positioned on the same side of the connecting plate are opposite.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the ratchet wheel is characterized in that a ratchet wheel sleeve is sleeved outside the rotating nut, a ratchet wheel and pawl mechanism is arranged between the ratchet wheel sleeve and the rotating nut, and the ratchet wheel sleeve is connected with a push rod perpendicular to the axis of the ratchet wheel sleeve.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the ratchet and pawl mechanism is a bidirectional ratchet and pawl mechanism.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the two rotating nuts positioned on the same side of the connecting plate are divided into a rotating nut A and a rotating nut B, the rotating nut A is fixedly connected with the gear and is sleeved with a ratchet sleeve, the rotating nut B is connected with the gear in a sliding mode through a spline, and the two gears positioned on the same side of the connecting plate are meshed with each other.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the ratchet and pawl mechanism is a ratchet and pawl mechanism with a neutral position, the rotating nut A comprises an inner sleeve in threaded connection with the lead screw and an outer sleeve in rotating sleeve connection with the inner sleeve, the outer sleeve is fixedly connected with the gear and sleeved with a ratchet sleeve, and the inner sleeve and the outer sleeve are provided with clamping devices.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the upper end of the spline is provided with a baffle sheet, the baffle sheet has magnetism, and the gear is iron.
By adopting the technical scheme, the invention has the technical effects that:
1. the invention provides a replacement tool for a wire clamp of an ultra-high voltage transmission line, which can improve the stress of branch conductors when replacement operation is carried out, wherein when the wire clamp is replaced, the weight of the lifted branch conductors is more uniformly transmitted to other branch conductors through a connecting plate, but particularly for even number of branch conductors, such as 4-split conductors, the branch conductor with the largest bearing force is the branch conductor at the same side as the lifted branch conductor, and under the condition that the relevant stress condition is not considered in the design of a large number of existing connecting plates and the acting area of the existing connecting plates and the branch conductors is limited, the acting force on the corresponding bearing branch conductors is dispersed, so that the stress is prevented from being excessively concentrated, and the condition that the branch conductors are damaged to reduce the service life of the branch conductors is avoided.
2. The connecting plate comprises a connecting plate fixedly connected with a connecting plate, cross beams extending out of the left side and the right side of the connecting plate are arranged on the connecting plate, the connecting plate and the cross beams are in a vertical position relation, the tail ends of the cross beams on the left side and the right side of the connecting plate are respectively and rotatably connected with two rotating nuts, the rotating nuts are in threaded connection with lead screws, the lead screws are parallel to the connecting plate, one ends of the lead screws are provided with sleeves, the two lead screws positioned on the same side of the connecting plate and the end parts of the two lead screws positioned on the same side of the connecting plate are in opposite vertical directions, and the directions of all the sleeves are approximately vertical to the connecting plate The branch wires positioned below are also respectively sleeved with two sleeves, and the middle of each 4 sleeves is provided with a connecting plate fixedly connected with the connecting plate. If the wire clamp is replaced on the lower branch wire, the screw rod located above is lowered downwards by rotating the corresponding rotary nut until the sleeve located above starts to generate downward pressure on the upper branch wire, and after sufficient pressure is generated, the rotary nut of the screw rod located below is rotated to lift the screw rod located below and lift the lower branch wire for corresponding replacement. If the branch conductor wire clamp positioned above is replaced, the corresponding process is operated in the reverse direction of the process, namely the two sleeves positioned below are firstly pressed down until the sleeves positioned below start to generate downward pressure on the branch conductors positioned below, and after sufficient pressure is generated, the rotating nut of the upper lead screw is rotated to lift the lead screw positioned above, and the upper branch conductors are lifted to carry out corresponding replacement operation. The device is because set up the sleeve in branch wire both sides, through the sleeve that pushes down and be located yoke plate both sides, make the yoke plate that is located the centre do the lifting motion relatively, thereby reduced the branch wire pressure with the yoke plate contact, make the effort equipartition more in the corresponding district section of branch wire, especially the sleeve has the characteristics of face contact with the branch wire, make the point contact stress that the branch that increases corresponding bearing suddenly because of the promotion of homonymy branch wire caused by the yoke plate on arriving, greatly protected the branch wire, the wire life-span has been prolonged, the maintenance work volume and relevant maintenance cost have been reduced.
3. The sleeve comprises a half sleeve A and a half sleeve B, the half sleeve A and the half sleeve B jointly surround a cylinder, the half sleeve A is connected with the screw rod, one side of the half sleeve B is rotatably connected with one side of the half sleeve A, and the other side of the half sleeve B is detachably connected with the other side of the half sleeve A, so that the sleeve is divided into an upper half and a lower half, the sleeve can be conveniently installed on the branch conductor by opening and closing the half sleeve B, and the half sleeve B is detachably connected with the half sleeve A, so that the sleeve has the capacity of encircling the branch conductor, namely the capacity of similarly hooping the branch conductor, the hooped sleeve not only can more uniformly distribute the downward pressing or upward acting force on the branch conductor, but also is often provided with a strain clamp for connecting the two branch conductors into one, so that the sleeve hooped with the two branch conductors on the two sides can also play a role of assisting the connection of the two branch conductors through the device The tension clamp has the advantages that stress of the tension clamp is shared, damage to the tension clamp due to the stress of the bearing branch lead which is increased suddenly is prevented, the maintenance period of the branch lead is prolonged, and the maintenance cost is reduced.
4. According to the technical scheme, the stud is arranged in the half sleeve A of the sleeve positioned above the sleeve and is perpendicular to the axial direction of the sleeve, the half sleeve B of the sleeve positioned above the sleeve is provided with the convex plate, the half sleeve A of the sleeve positioned below the sleeve is provided with the convex plate, the half sleeve B of the sleeve positioned below the sleeve is provided with the stud which is perpendicular to the axial direction of the sleeve and rotates, the stud is in threaded connection with the locking nut, and the convex plate is provided with the groove which is matched with the stud and the locking nut, so that the stud can always enter the groove in the convex plate after rotating upwards to be connected, and the locking nut is screwed to be fastened. Because the maintenance personnel usually stand or sit on the branch wire during operation, the head is basically higher than the branch wire, and the upward locking nut can facilitate the maintenance personnel to screw and select loose, thereby improving the operation efficiency.
5. According to the technical scheme, the half sleeve A is rotatably connected with the lead screw through the pin shaft, and the axial direction of the pin shaft is perpendicular to the axis of the lead screw and is parallel to the connecting plate, so that the sleeve can be better attached to the branch conductor and then is supported, pressed down or hooped. Because the branch wires between the two connecting plates have certain drooping radian, the branch wires on the left side and the right side of the connecting plates have slightly downward inclined angles, and after the pin shaft is arranged, the sleeve can better fit the angle, so that the two ends of the sleeve are prevented from being stressed unevenly, and the corresponding contact sections of the branch wires are stressed by the sleeve more uniformly.
6. According to the technical scheme that the two rotating nuts positioned on the same side of the connecting plate are in equal-ratio transmission through the gear, and the thread turning directions of the two rotating nuts positioned on the same side of the connecting plate are opposite, the screw rods 5 positioned on the same side can synchronously move up or down, so that the application range of the device can be expanded, if the strength of the branch conductor is enough or the connection between the connecting plate and the branch conductor is reasonable enough, and the stress is not required to be shared, the device can simultaneously promote the operation of the branch conductor on the same side, namely the wire clamp replacing operation of two branch conductors is completed by one-step promotion, and the overall efficiency of the replacing operation is improved.
7. According to the technical scheme, the ratchet sleeve is sleeved outside the rotary nut, the ratchet pawl mechanism is arranged between the ratchet sleeve and the rotary nut, and the ratchet sleeve is connected with the push rod perpendicular to the axis of the ratchet sleeve, so that an operator can rotate the rotary nut without depending on an additional wrench, and the rotary nut can be continuously screwed in through the one-way stopping function of the ratchet pawl mechanism by repeatedly pushing and pulling the push rod, and the push rod does not need to rotate around the screw rod, so that the operation can be conveniently carried out only on one side of the equipment.
8. According to the invention, by adopting the technical scheme that the ratchet-pawl mechanism is a bidirectional ratchet-pawl mechanism, the lifting or descending movement of the screw rod can be conveniently completed through the push rod, and the operation efficiency is improved.
9. According to the technical scheme that the two rotating nuts positioned on the same side of the connecting plate are divided into the rotating nut A and the rotating nut B, the rotating nut A is fixedly connected with the gear and is sleeved with the ratchet sleeve, the rotating nut B is connected with the gear in a sliding mode through the spline, and the two gears positioned on the same side of the connecting plate are meshed with each other, so that the device can complete the operation and control of two lead screws only by using one ratchet sleeve and a ratchet-pawl mechanism matched with the ratchet sleeve, and the two lead screws on each side are not required to be provided with the ratchet-pawl mechanism, so that the equipment cost is reduced. And the gear is connected with the rotating nut in a sliding mode through the spline, so that when the rotating nut provided with the spline does not need to be driven, for example, a lead screw matched with the rotating nut is moved in place, the corresponding gear can be removed from the spline, the push rod can control the ratchet sleeve independently, and the operation of equipment is facilitated.
10. According to the technical scheme that the ratchet and pawl mechanism is a ratchet and pawl mechanism with a neutral position, the rotating nut A comprises an inner sleeve in threaded connection with the lead screw and an outer sleeve in rotating sleeve connection with the inner sleeve, the outer sleeve is fixedly connected with the gear and sleeved with the ratchet sleeve, and the inner sleeve and the outer sleeve are provided with clamping devices.
11. According to the technical scheme that the blocking piece is arranged at the upper end of the spline and is magnetic, and the gear is made of iron, so that the removed gear is kept in the section of the spline, the gear is prevented from being lost, the magnetic blocking piece can absorb the iron gear, the gear is kept at the upper end of the spline and does not fall down after being lifted away from the meshing section of the spline, and the working usability and reliability of equipment are guaranteed.
Drawings
FIG. 1 is a front view of the present invention in a schematic configuration;
FIG. 2 is a schematic left side view of the structure of the present invention;
the device comprises a connecting plate 1, a cross beam 2, a sleeve 3, a stud 4, a lead screw 5, a rotating nut 6, a half sleeve A7, a half sleeve B8, a convex plate 9, a locking nut 10, a slot 11, a pin shaft 12, a gear 13, a spline 14, a catch 15, a ratchet sleeve 16, a push rod 17, a rotating nut A18, a rotating nut B19, an inner sleeve 20, an outer sleeve 21, a bayonet 22 and a rotating shaft half 23.
Detailed Description
It should be noted at the outset that the discussion of any embodiment of the present invention is illustrative only and is not intended to suggest that the scope of the present disclosure (including the claims) is limited to these examples; there are many other variations of the different aspects of the invention as described above which are not provided in detail for the sake of brevity. Accordingly, other embodiments are within the scope of the following claims.
In addition, the drawings in the following description are only preferred embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on the drawings without inventive efforts. In addition, the present invention is not limited to these embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Furthermore, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited by the specific embodiments disclosed below.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., is typically an orientation or positional relationship based on a coordinate system shown in the front view of the device itself or the corresponding sub-component, and that the set of coordinate systems will not rotate with it when other directional views are discussed. In addition, in the case of a rod-like or elongated member, the term "front end" and the term "head" have the same meaning, and the term "rear end" and the term "tail end" and the term "end" have the same meaning. Rather, the foregoing directional terms are used merely to facilitate describing the present application and to simplify the description, and they do not indicate or imply that the apparatus or component being referred to must have a particular orientation or be constructed and operated in a particular orientation without having been stated to the contrary or otherwise specified, and therefore should not be considered limiting of the scope of the present application; further, the terms "inner and outer" with respect to orientation refer to the inner and outer relative to the profile of the respective component itself.
Furthermore, spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", etc. are used to define the components, and are only used to facilitate distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, especially, have no special meaning in "main, secondary" or arrangement order, and therefore, should not be construed as limiting the scope of the present application.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in attached figures 1 and 2, the ultra-high voltage transmission line clamp replacing tool comprises a connecting plate 1 fixedly connected with a connecting plate, wherein cross beams 2 extending out of the left side and the right side of the connecting plate 1 are arranged on the connecting plate 1, and the connecting plate 1 and the cross beams 2 are in a vertical position relation. The tail ends of the cross beams 2 on the left side and the right side of the connecting plate 1 are respectively and rotatably connected with two rotary nuts 6, and the rotary nuts are in threaded connection with a screw rod 5. The lead screw 5 is parallel to the connecting plate 1, and one end of the lead screw 5 is provided with a sleeve 3. For the two threaded spindles 5 located on the same side of the connecting plate 1, the ends of the two threaded spindles 5 on which the sleeves 3 are arranged are oriented opposite one another, i.e., the sleeves 3 on the two threaded spindles 5 located on the same side of the connecting plate 1 are arranged opposite one another, i.e., one above the other. The overall sleeves 3 are oriented substantially perpendicular to the web 1.
The connection plate 1, which is fixedly connected with the yoke plate, can be designed by referring to the prior art and is used for matching with an insulator yoke plate comprising a V-shaped insulator yoke plate, an I-shaped insulator yoke plate or other types. The swivel nut 6 can be twisted by means of a wrench or the like to achieve the lifting or lowering of the threaded spindle 5. The sleeve 3 can be sleeved on the branch conductor by using an open-close structure or a sleeving and hanging mode.
When the split-type connecting plate is used, particularly for 4 split-type conductors, after the connecting plate 1 and the connecting plate are fixed, the sleeves 3 positioned at the upper end and the lower end are respectively sleeved on the branch lines on the left side and the right side of the connecting plate, so that the two sleeves 3 are respectively sleeved on the branch conductors positioned above, the two sleeves 3 are respectively sleeved on the branch conductors positioned below, and the connecting plate fixedly connected with the connecting plate 1 is arranged in the middle of the 4 sleeves 3. If the wire clamp replacing operation is carried out on the lower branch wire, the screw rod 5 located above is lowered downwards by rotating the corresponding rotary nut 6 until the sleeve 3 located above starts to generate downward pressure on the upper branch wire, and after sufficient pressure is generated, the rotary nut 6 of the screw rod 5 located below is rotated to lift the screw rod 5 located below and lift the lower branch wire for corresponding replacing operation.
If the branch conductor clamp positioned above is replaced, the corresponding process is operated in the reverse direction of the process, namely the two sleeves 3 positioned below are firstly pressed down until the sleeves 3 positioned below start to generate downward pressure on the branch conductors positioned below, and after sufficient pressure is generated, the rotating nut 6 of the upper lead screw 5 is rotated to lift the lead screw 5 positioned above, so that the upper branch conductors are lifted to perform corresponding replacement operation.
The sleeve 3 is arranged on two sides of the branch conductor, the sleeves 3 on two sides of the connecting plate are pressed downwards, the connecting plate in the middle is made to do lifting movement relatively, the pressure of the branch conductor in contact with the connecting plate is reduced, acting force is uniformly distributed in corresponding sections of the branch conductor, particularly, the sleeves 3 and the branch conductor have the characteristic of surface contact, point contact stress caused by the connecting plate on the branch conductor which suddenly increases corresponding bearing due to lifting of the branch conductor on the same side is reduced, the branch conductor is greatly protected, the service life of the conductor is prolonged, and maintenance workload and related maintenance cost are reduced.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the sleeve 3 comprises a half sleeve A7 and a half sleeve B8, the half sleeve A7 and the half sleeve B8 jointly enclose a cylinder, the half sleeve A7 is connected with the lead screw 5, one side of the half sleeve B8 is rotatably connected with one side of the half sleeve A7, in the embodiment, the half sleeve A7 is connected through a half sleeve rotating shaft 23, and the other side of the half sleeve B8 is detachably connected with the other side of the half sleeve A7.
The sleeve 3 is divided into an upper half sleeve and a lower half sleeve, the sleeve 3 can be conveniently installed on the branch conducting wires by opening and closing the half sleeve B8, the half sleeve B8 is detachably connected with the half sleeve A7, so that the sleeve has the capacity of encircling the branch conducting wires, namely the capacity of similarly hooping the branch conducting wires, the hooped sleeve 3 not only can more uniformly distribute downward pressing or upward acting force on the branch conducting wires, but also is provided with the strain clamp for connecting the two branch conducting wires into one, so the sleeve 3 hooped on the two branch conducting wires can also play a role in auxiliary connection of the two branch conducting wires through the device, the stress of the strain clamp is shared, the damage to the strain clamp due to the suddenly increased stress of the bearing branch conducting wires is prevented, and the maintenance cycle of the branch conducting wires is prolonged.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the half set A7 that the sleeve 3 that is located above has is provided with the double-screw bolt 4 that rotates perpendicularly to sleeve 3 axis direction, the half set B8 that the sleeve 3 that is located above has is provided with the flange 9, the half set A7 that the sleeve 3 that is located below has is provided with the flange 9, the half set B8 that the sleeve 3 that is located below has is provided with the double-screw bolt 4 that rotates perpendicularly to sleeve 3 axis direction, the double-screw bolt 4 threaded connection has lock nut 10, be provided with on the flange 9 with the fluting 11 that the double-screw bolt 4 and lock nut 10 are adapted.
Through the arrangement, the stud 4 can always keep rotating upwards and enter the slot 11 on the convex plate 9 for connection, and then the lock nut 10 is screwed for fastening. Because the maintenance personnel usually stand or sit on the branch conductor during operation, the head is basically higher than the branch conductor, and the upward locking nut 10 can facilitate the maintenance personnel to screw and select loose, thereby improving the operation efficiency.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the half sleeve A7 is rotationally connected with the lead screw 5 through a pin shaft 12, and the axial direction of the pin shaft 12 is perpendicular to the axis of the lead screw 5 and is parallel to the connecting plate 1.
Through the arrangement, the sleeve 3 can better adhere to the branch conductor for supporting, pressing down or hooping. Because the branch wires between the two connecting plates have certain drooping radian, the branch wires on the left side and the right side of the connecting plates have slightly downward inclined angles, and after the pin shaft 12 is arranged, the sleeve 3 can better fit the angle, so that the two ends of the sleeve 3 are prevented from being stressed unevenly, and the corresponding contact sections of the branch wires are stressed by the sleeve 3 more evenly.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: two rotating nuts 6 on the same side of the connecting plate 1 are in equal ratio transmission through a gear 13, and the thread directions of the two rotating nuts 6 on the same side of the connecting plate 1 are opposite.
Through the setting, can make the lead screw 5 of homonymy do synchronous rising or descending motion, can be in the application scope of this device of extension like this, if the intensity of branch wire is enough or the yoke plate is enough reasonable with being connected between the branch wire, when needn't share the condition of atress, can make this device carry out the operation that promotes homonymy branch wire simultaneously, just once promotes the change fastener operation of accomplishing two branch wires, has improved the overall efficiency of change operation promptly.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: a ratchet sleeve 16 is sleeved outside the rotating nut 6, a ratchet-pawl mechanism is arranged between the ratchet sleeve 16 and the rotating nut 6, and the ratchet sleeve 16 is connected with a push rod 17 perpendicular to the axis of the ratchet sleeve 16.
Through the arrangement, an operator can rotate the rotating nut 6 without depending on an additional wrench, and the rotating nut 6 can be continuously screwed in through the one-way stopping function of the ratchet and pawl mechanism by repeatedly pushing and pulling the push rod 17 without rotating the push rod 17 around the lead screw 5, so that the operation can be conveniently carried out only on one side of the equipment.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the ratchet and pawl mechanism is a bidirectional ratchet and pawl mechanism.
The bidirectional ratchet-pawl mechanism is a mechanism capable of completing selective stopping between forward rotation and reverse rotation, compared with a common ratchet-pawl mechanism only having a unidirectional stopping function, and is commonly used in a ratchet wrench capable of stopping in forward and reverse directions.
By arranging the bidirectional ratchet-pawl mechanism, the lifting or descending motion of the screw 5 can be conveniently completed through the push rod 17, and the working efficiency is improved.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the two rotating nuts 6 on the same side of the connecting plate 1 are divided into a rotating nut A18 and a rotating nut B19, the rotating nut A18 is fixedly connected with the gear 13 and is sleeved with a ratchet sleeve 16, the rotating nut B19 is connected with the gear 13 in a sliding mode through a spline 14, and the two gears 13 on the same side of the connecting plate 1 are meshed with each other.
Through the arrangement, the device can complete the operation and control of the two lead screws 5 by only using one ratchet sleeve 16 and the matched ratchet-pawl mechanism thereof, and the two lead screws 5 on each side are not required to be provided with the ratchet-pawl mechanism, so that the equipment cost is reduced. And the gear 13 is connected with the rotary nut 6 in a sliding way through the spline 14, when the rotary nut 6 provided with the spline 14 does not need to be driven, for example, the lead screw 5 matched with the rotary nut 6 is moved to the right position, the corresponding gear 13 can be removed from the spline 14, so that the push rod 17 controls the ratchet sleeve 16 independently, and the operation of the equipment is convenient.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: the ratchet and pawl mechanism is a neutral ratchet and pawl mechanism, the rotating nut A18 comprises an inner sleeve 20 in threaded connection with the lead screw 5 and an outer sleeve 21 in rotating sleeve connection with the inner sleeve 20, the outer sleeve 21 is fixedly connected with the gear 13 and is sleeved with a ratchet sleeve 16, and the inner sleeve 20 and the outer sleeve 21 are provided with clamping devices.
The ratchet-pawl mechanism with the neutral position means that the ratchet wheel and the pawl of the mechanism can be selectively kept to be separated or engaged, and the ratchet wheel can freely rotate by keeping the separation of the ratchet wheel and the pawl. The clamping device is a device similar to the clamping pin 22 which can clamp the inner sleeve 20 and the outer sleeve 21.
Through the arrangement, when the inner sleeve 20 and the outer sleeve 21 are not clamped by the clamping pin 22, the outer sleeve 21 idles without driving the inner sleeve 20, so that the rotary nut B19 in transmission connection with the outer sleeve 21 can be driven through the ratchet sleeve 16 rotating together with the outer sleeve 21, the effect of independently controlling the rotary nut B19 is achieved, the lifting of the lead screw 5 in threaded connection with the rotary nut A18 or the rotary nut B19 can be freely and selectively controlled through only one set of ratchet sleeve 16, and the operability of the device is improved.
The tool for replacing the ultra-high voltage transmission line clamp can further comprise: a baffle plate 15 is arranged at the upper end of the spline 14, the baffle plate 15 has magnetism, and the gear 13 is made of iron.
Through the arrangement, the removed gear 13 is kept in the section of the spline 14 by the baffle plate 15, the gear 13 is prevented from being lost, and the baffle plate 15 with magnetism can adsorb the ferrous gear 13, so that the gear 13 is always kept at the upper end of the spline 14 without falling after being lifted away from the meshing section on the spline 14, and the working usability and the reliability of the equipment are ensured.
It is again emphasized that the embodiments described herein are merely examples of implementations, rather than examples of implementations, and that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention as defined by the claims. Any changes obvious to those skilled in the art from the embodiments of the present invention, which are made under the design idea of the present invention, are within the protection scope of the present invention.
Claims (10)
1. The utility model provides an ultra-high voltage transmission line fastener replacement instrument which characterized in that: including being used for with yoke plate fixed connection's connecting plate (1) be provided with crossbeam (2) that stretch out from the connecting plate (1) left and right sides on connecting plate (1), connecting plate (1) is the vertical position relation with crossbeam (2) the end of crossbeam (2) rotates respectively and is connected with two swivel nut (6), swivel nut (6) threaded connection has lead screw (5), lead screw (5) parallel with connecting plate (1), the one end of lead screw (5) is provided with sleeve (3), and sleeve (3) on two lead screws (5) that are in connecting plate (1) same side are relative setting from top to bottom each other.
2. The ultra-high voltage transmission line clamp replacing tool according to claim 1, characterized in that: the sleeve (3) comprises a half sleeve A (7) and a half sleeve B (8), the half sleeve A (7) and the half sleeve B (8) jointly surround to form a cylinder, the half sleeve A (7) is connected with the screw rod (5), one side of the half sleeve B (8) is rotatably connected with one side of the half sleeve A (7), and the other side of the half sleeve B (8) is detachably connected with the other side of the half sleeve A (7).
3. The ultra-high voltage transmission line clamp replacing tool according to claim 2, characterized in that: half a set A (7) that sleeve (3) that is in the top has is provided with perpendicular to sleeve (3) axis direction pivoted double-screw bolt (4), half a set B (8) that sleeve (3) that is in the top has is provided with flange (9), half a set A (7) that sleeve (3) that is in the below has is provided with flange (9), half a set B (8) that sleeve (3) that is in the below has is provided with perpendicular to sleeve (3) axis direction pivoted double-screw bolt (4), double-screw bolt (4) threaded connection has lock nut (10), be provided with on flange (9) with fluting (11) of double-screw bolt (4) and lock nut (10) looks adaptation.
4. The ultra-high voltage transmission line clamp replacing tool according to claim 2, characterized in that: the half sleeve A (7) is rotationally connected with the lead screw (5) through a pin shaft (12), and the axial direction of the pin shaft (12) is perpendicular to the axis of the lead screw (5).
5. The ultra-high voltage transmission line clamp replacing tool according to claim 1, characterized in that: the two rotating nuts (6) on the same side of the connecting plate (1) are in equal ratio transmission through the gear (13), and the thread turning directions of the two rotating nuts (6) on the same side of the connecting plate (1) are opposite.
6. The ultra-high voltage transmission line clamp replacing tool according to claim 5, characterized in that: a ratchet sleeve (16) is sleeved outside the rotating nut (6), a ratchet pawl mechanism is arranged between the ratchet sleeve (16) and the rotating nut (6), and the ratchet sleeve (16) is connected with a push rod (17) perpendicular to the axis of the ratchet sleeve (16).
7. The ultra-high voltage transmission line clamp replacing tool according to claim 6, characterized in that: the ratchet and pawl mechanism is a bidirectional ratchet and pawl mechanism.
8. The ultra-high voltage transmission line clamp replacing tool according to claim 6, characterized in that: the two rotating nuts (6) on the same side of the connecting plate (1) are divided into a rotating nut A (18) and a rotating nut B (19), the rotating nut A (18) is fixedly connected with the gear (13) and sleeved with a ratchet sleeve (16), the rotating nut B (19) is connected with the gear (13) in a sliding mode through a spline (14), and the two gears (13) on the same side of the connecting plate (1) are meshed with each other.
9. The ultra-high voltage transmission line clamp replacing tool according to claim 8, characterized in that: the ratchet and pawl mechanism is a ratchet and pawl mechanism with a neutral position, the rotating nut A (18) comprises an inner sleeve (20) in threaded connection with the lead screw (5) and an outer sleeve (21) in rotating sleeve connection with the inner sleeve (20), the outer sleeve (21) is fixedly connected with the gear (13) and is sleeved with a ratchet sleeve (16), and the inner sleeve (20) and the outer sleeve (21) are provided with clamping devices.
10. The ultra-high voltage transmission line clamp replacing tool according to claim 9, characterized in that: a blocking piece (15) is arranged at the upper end of the spline (14), the blocking piece (15) is magnetic, and the gear (13) is iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606516.6A CN111799696B (en) | 2020-06-29 | 2020-06-29 | Tool for replacing ultra-high voltage transmission line clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606516.6A CN111799696B (en) | 2020-06-29 | 2020-06-29 | Tool for replacing ultra-high voltage transmission line clamp |
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| CN111799696A true CN111799696A (en) | 2020-10-20 |
| CN111799696B CN111799696B (en) | 2021-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113794154A (en) * | 2021-09-16 | 2021-12-14 | 重庆水利电力职业技术学院 | Tool for replacing ultra-high voltage transmission line clamp |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154797A (en) * | 2007-10-19 | 2008-04-02 | 重庆市电力公司江北供电局 | Auxiliary means for changing porcelain insulator of telegraph pole |
| CN201774185U (en) * | 2010-08-03 | 2011-03-23 | 邢台供电公司 | Adjustable lifter of power transmission line overhead ground wire |
| KR20130062789A (en) * | 2011-12-05 | 2013-06-13 | 한국전력공사 | Ratchet roller and spacer car |
| CN103594968A (en) * | 2013-11-21 | 2014-02-19 | 国网上海市电力公司 | Lifting device of multiple divided conductors of transmission tower |
| CN106684756A (en) * | 2017-01-19 | 2017-05-17 | 国网山东省电力公司临沂供电公司 | Power transmission angle iron tower conductor and ground wire lifting tool and application method of the same |
| CN109217170A (en) * | 2018-08-01 | 2019-01-15 | 国网浙江省电力有限公司金华供电公司 | The replacement tool of ground electrode circuit insulator and fitting |
| CN109490111A (en) * | 2018-10-16 | 2019-03-19 | 河海大学 | Two-dimentional pile-soil interaction pilot system and test method based on PIV technology |
| CN208690880U (en) * | 2018-09-30 | 2019-04-02 | 贵州亿德电力建设有限公司 | Cable fastens antiswing device |
| CN110086120A (en) * | 2019-06-03 | 2019-08-02 | 国家电网有限公司 | Anti- beam tightening device, attaching/detaching apparatus and the method for electrification dismounting insulator chain |
| KR102017031B1 (en) * | 2019-03-15 | 2019-09-02 | (주)삼현기술단 | Safety access device for separation low-voltage cable of transformer |
| CN110556685A (en) * | 2019-08-30 | 2019-12-10 | 国家电网有限公司 | Auxiliary grounding wire assembly and disassembly method |
| CN210380017U (en) * | 2019-07-26 | 2020-04-21 | 国网山东省电力公司泰安供电公司 | Universal ground wire cross arm clamp for power transmission line |
| CN210468595U (en) * | 2019-07-04 | 2020-05-05 | 国家电网有限公司 | Wire clamp replacing tool |
-
2020
- 2020-06-29 CN CN202010606516.6A patent/CN111799696B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154797A (en) * | 2007-10-19 | 2008-04-02 | 重庆市电力公司江北供电局 | Auxiliary means for changing porcelain insulator of telegraph pole |
| CN201774185U (en) * | 2010-08-03 | 2011-03-23 | 邢台供电公司 | Adjustable lifter of power transmission line overhead ground wire |
| KR20130062789A (en) * | 2011-12-05 | 2013-06-13 | 한국전력공사 | Ratchet roller and spacer car |
| CN103594968A (en) * | 2013-11-21 | 2014-02-19 | 国网上海市电力公司 | Lifting device of multiple divided conductors of transmission tower |
| CN106684756A (en) * | 2017-01-19 | 2017-05-17 | 国网山东省电力公司临沂供电公司 | Power transmission angle iron tower conductor and ground wire lifting tool and application method of the same |
| CN109217170A (en) * | 2018-08-01 | 2019-01-15 | 国网浙江省电力有限公司金华供电公司 | The replacement tool of ground electrode circuit insulator and fitting |
| CN208690880U (en) * | 2018-09-30 | 2019-04-02 | 贵州亿德电力建设有限公司 | Cable fastens antiswing device |
| CN109490111A (en) * | 2018-10-16 | 2019-03-19 | 河海大学 | Two-dimentional pile-soil interaction pilot system and test method based on PIV technology |
| KR102017031B1 (en) * | 2019-03-15 | 2019-09-02 | (주)삼현기술단 | Safety access device for separation low-voltage cable of transformer |
| CN110086120A (en) * | 2019-06-03 | 2019-08-02 | 国家电网有限公司 | Anti- beam tightening device, attaching/detaching apparatus and the method for electrification dismounting insulator chain |
| CN210468595U (en) * | 2019-07-04 | 2020-05-05 | 国家电网有限公司 | Wire clamp replacing tool |
| CN210380017U (en) * | 2019-07-26 | 2020-04-21 | 国网山东省电力公司泰安供电公司 | Universal ground wire cross arm clamp for power transmission line |
| CN110556685A (en) * | 2019-08-30 | 2019-12-10 | 国家电网有限公司 | Auxiliary grounding wire assembly and disassembly method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113794154A (en) * | 2021-09-16 | 2021-12-14 | 重庆水利电力职业技术学院 | Tool for replacing ultra-high voltage transmission line clamp |
| CN113794154B (en) * | 2021-09-16 | 2022-12-13 | 重庆水利电力职业技术学院 | Tool for replacing ultra-high voltage transmission line clamp |
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|---|---|
| CN111799696B (en) | 2021-07-06 |
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