CN110416920A - A quick disassembly and assembly tool for four-split wire spacer - Google Patents

Abstract

The invention discloses a wire spacer disassembly technical field, specifically a quick disassembly tool for a four-split wire spacer, including a base support rod, a base and a handle, and the bottom end of the base support rod is connected with a screw rod , the base is screwed on the outer wall of the screw, the upper side of the base strut is provided with a through groove transversely, and the left side of the upper end of the base strut is connected with two stoppers, and the two stoppers They are respectively located at the front and back sides of the upper left end of the through groove, and the upper end of the support rod of the base is radially installed with a rotating shaft, and the rotating shaft runs through the through groove, and the left end of the handle is connected with the rotating shaft. Be able to master the essentials of operation and realize the function of using the wire spacer for quick disassembly and assembly independently; the time for this program to transfer the gripping force of the wire spacer is shorter than that of traditional tools, which can effectively improve the efficiency of disassembly and assembly of the wire spacer; reduce manual electrification Working hours can ensure the safety of employees at work.

Description

A quick disassembly and assembly tool for four-split wire spacer

technical field

The invention relates to the technical field of wire spacer disassembly and assembly, in particular to a quick disassembly tool for a four-split wire spacer.

Background technique

Due to the rapid economic development of our country in recent years, especially the sharp increase in electricity consumption in the five southern provinces, the Southern Power Grid has formed "five DC and eight AC" 13 500 kV west-to-east power transmission channels, each of which is 1,000 kilometers away. And above, more than 130,000 four-split spacers. Because the air in the southern region is humid and the spacers are prone to rust and are severely vibrated by the breeze all the year round, the damage to the spacers is serious. At present, the 500kV and above lines under the jurisdiction of the China Southern Power Grid EHV Transmission Company mostly use clamp rotary four-split damping spacers to prevent the problem of conductor sub-gap.

The four-split damping spacer is a flexible or semi-rigid spacer that can reduce the breeze vibration or sub-gap vibration of the split conductor. my country's 500kV transmission line adopts a four-split conductor structure. The spacer is the main fitting in the split wire structure. The basic tasks of the spacer are: to prevent the whipping between the wires, to suppress the vibration of the breeze and the vibration of the sub-gap. The most used is the damping spacer, which has better vibration absorption performance than the rigid spacer. The spacer bar includes a plurality of fixed clamps and a polygonal clamp bracket. The fixed clamp can swing to a certain extent in the direction of the length of the wire, that is, in the front and rear directions in the plane perpendicular to the paper surface, but it can be clamped under tension. In the state, it is basically in a fixed state and cannot be rotated. For split conductors, there is generally a spacer bar every tens of meters to connect the sub-conductors together. The two ends of the sub-conductor in each sub-gap are fixed by spacers, and the torsional rigidity is much higher than that of the single conductor with the same cross section. After the sub-conductor is eccentrically iced, it is difficult to twist around its own axis. If it is not relieved, eccentric icing will form fan-shaped, crescent-shaped uneven icing, and the aerodynamic load acting on the split conductor will naturally be much larger than that of the single conductor. This is also the main reason why split wires are more prone to galloping than single wires.

The replacement of four-split spacer rods for 500kV transmission lines is the main maintenance work item for live transmission work. In order to consume the vibration energy of the wires, the transmission line has a damping effect on the vibration of the wires, and suppresses the vibration of the sub-gap and the vibration of the breeze, and a large number of four-split spacers are installed.

The vibration energy of the large-section split conductor is relatively large, and the number of spacer rods damaged in the transmission line is large every year. It is necessary to arrange live replacement of the damaged spacer rods. Because the original special tool for disassembling and assembling the spacer rods uses a screw drive to transfer the gripping force of the spacer rods. The efficiency is low, and it cannot meet the requirements of a large number of dismantling and assembling spacers.

Contents of the invention

The purpose of the present invention is to provide a quick dismounting tool for four-split conductor spacers, to solve the problem that the vibration energy of the large-section split conductors proposed in the above-mentioned background technology is relatively large, and the number of damages to the transmission line spacers is large every year, so it is necessary to arrange Replacement of damaged spacer rods with electricity, because the original special tool for disassembly and assembly of spacer rods uses screw drive to transfer the gripping force of spacer rods, the work efficiency is low, and it cannot meet the requirements of a large number of disassembly and assembly of spacer rods.

In order to achieve the above object, the present invention provides the following technical solutions: a quick disassembly and assembly tool for four-split wire spacers, including a base support rod, a base and a handle, the bottom end of the base support rod is connected with a screw rod, the The base is screwed on the outer wall of the screw, and the upper side of the base strut is provided with a through groove transversely. The front and rear sides of the left upper end of the groove, the upper end of the base pole is radially installed with a rotating shaft, the rotating shaft runs through the through groove, the left end of the handle is connected with the rotating shaft, and the right side of the front and rear side walls of the handle is provided with a through groove , The card slot matching the block.

Preferably, there are two bases, and the bases are in the shape of hexagonal nuts.

Preferably, the total length of the base pole, block and screw is 10 cm, the length of the bottom end of the base pole from the center of the rotating shaft is 7 cm, and the length of the right end of the handle from the center of the rotating shaft is 35 cm.

Preferably, the thickness of the left end of the handle is the same as the width of the slot of the base pole.

Preferably, the handle includes a small-diameter handle post and a large-diameter handle post, and the small-diameter handle post is coaxially connected to the left end of the large-diameter handle post.

Preferably, anti-slip stripes are provided on the outer wall of the large-diameter handle column, and the diameter of the handle is the same as that of the small-diameter handle column.

Preferably, the maximum diameter of the outer wall of the base is larger than the diameter of the handle.

Compared with prior art, the beneficial effect of the present invention is:

1) This scheme has simple structure and convenient operation. After simple training, you can master the essentials of operation, and realize the function of independent use of quick disassembly and assembly of wire spacers;

2) The time for this program to transfer the gripping force of the wire spacer is shorter than that of traditional tools, which can effectively improve the efficiency of disassembling and assembling the wire spacer;

3) Reduce the time of manual live work and ensure the work safety of employees.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of handle of the present invention;

Fig. 3 is a right-view structural schematic diagram of the base pole of the present invention;

Fig. 4 is the structural schematic diagram of the existing wire spacer dismounting tool of the present invention;

Fig. 5 is the schematic diagram of the structure of the four-split wire spacer that needs to be disassembled in the present invention;

Fig. 6 is the schematic diagram of the structure of the fixed wire clip of the wire spacer of the present invention;

Fig. 7 is the right side view of Fig. 6 of the present invention;

Fig. 8 is a schematic diagram of the split opening structure of the fixed wire clamp in Fig. 6 of the present invention;

Fig. 9 is a schematic structural view of the present invention when inserted into the fixed wire clamp;

Fig. 10 is a schematic structural view of the compression and fixing wire clamp of the present invention.

In the figure: 1 base rod, 2 stopper, 3 rotating shaft, 4 screw, 5 base, 6 handle, 7 card slot, 8 rotating body, 9 disassembly screw, 10 rotating arm, 11 wire clamp bracket, 12 fixed wire clamp , 121 fixed clamp arm, 122 movable clamp arm, 123 flap, 124 lock plate, 125 fork frame, 126 compression nail, 127 extrusion hole.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom" etc. are based on the orientations shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "sleeved/connected", "connected", etc. should be understood in a broad sense, such as " Connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal connection between two components. connectivity. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Example:

Please refer to Figures 1-3, the present invention provides a technical solution: a quick disassembly tool for four-split wire spacers, including a base pole 1, a base 5 and a handle 6, and the bottom end of the base pole 1 is connected to There is a screw 4, the base 5 is screwed on the outer wall of the screw 4, the upper side of the base strut 1 is provided with a through groove in the horizontal direction, and the left side of the upper end of the base strut 1 is connected with two stoppers 2, two stoppers 2 are respectively located at the front and rear sides of the left upper end of the through groove, the upper end of the base pole 1 is radially installed with a rotating shaft 3, the rotating shaft 3 runs through the through groove, the left end of the handle 6 is connected with the rotating shaft 3, and the right side of the front and rear side walls of the handle 6 are provided with The card slot 7 matching the through slot and the stopper 2;

The handle 6 can rotate around the rotating shaft 3 at a certain angle in the through groove at the upper end of the base pole 1. Through the cooperation of the slot 7 and the two stoppers 2, the handle 6 cannot be rotated to the left side of the base pole 1, and when the handle 6 Turn to the vertical state, so that the slot 7 and the two stoppers 2 just fit, at this time the handle 6 coincides with the axis of the base pole 1.

There are two bases 5, the bases 5 are in the shape of hexagonal nuts, and the height of the two bases 5 can be adjusted on the screw rod 4 to adjust the distance between the upper base 5 and the rotating shaft 3, thereby realizing the effect of changing the moment.

The total length of the base pole 1, the block 2 and the screw rod 4 is 10cm, the length of the bottom end of the base pole 1 from the center point of the rotating shaft 3 is 7cm, and the length of the right end of the handle 6 from the center point of the rotating shaft 3 is 35cm.

The thickness of the left end of the handle 6 is the same as the width of the through groove of the base pole 1, so that the handle 6 fits better with the through groove of the base pole 1, the situation of shaking is not easy to occur, and the precision is higher.

The handle 6 includes a small-diameter handle post and a large-diameter handle post, and the small-diameter handle post is coaxially connected to the left end of the large-diameter handle post.

Anti-slip stripes are arranged on the outer wall of the large-diameter handle column, and the diameter of the handle 6 is the same as that of the small-diameter handle column. By setting the anti-slip stripes, the anti-slip effect can be played.

The maximum diameter of the outer wall of the base 5 is larger than the diameter of the handle 6, so that the base 5 can achieve a limiting effect.

As shown in Figure 4, it is the existing wire spacer dismounting tool. The structure of the existing wire spacer dismounting tool includes: rotating body 8, dismounting screw rod 9 and rotating arm 10, and rotating arm 10 is laterally movable and inserted in the rotating The upper end of the rotating body 8 and the rotating arm 10 can be adjusted and moved laterally relative to the rotating body 8. The disassembly screw 9 is coaxially connected to the bottom end of the rotating body 8. The rotating arm 10 drives the rotating body 8 to rotate, and the rotating body 8 drives the disassembling screw. 9 turns;

As shown in Figures 5, 6, 7, and 8, the four-split wire spacers that need to be disassembled include the wire clip bracket 11 and the fixed wire clip 12, and the fixed wire clip 12 is set with four One, and four fixed wire clips 12 are respectively connected to the four corners of the wire clip bracket 11 by pin shafts, the fixed wire clip 12 includes a fixed clip arm 121, and the end of the fixed clip arm 121 near the wire clip bracket 11 is connected with a fork frame 125, fork The frame 125 is connected with the wire clamp bracket 11 through a pin shaft, and the fixed clamp arm 121 is connected with the movable clamp arm 122 through a hinge. Connect the lock plate 124 on one end of the fork frame 125, and the lock plate 124 is inserted in the fork frame 125, and the right side of the fork frame 125 is radially inserted into the compression nail 126, and the compression nail 126 is pressed on the lock plate 124, so that the lock plate 124 will not break away from the fork frame 125, and the corresponding positions of the turnover plate 123 and the fork frame 125 are provided with extrusion holes 127, and the inner wall of the extrusion hole 127 on the fork frame 125 is provided with internal threads, and the size of the handle 6 can be squeezed. Pressure hole 127, the clamping portion between the fixed clamp arm 121 and the movable clamp arm 122 is provided with a gasket, and the size of the clamping part of the gasket is smaller than the size of the split wire that needs to be clamped, and the split wire is clamped between the fixed clamp arm 121 and the movable clamp arm 122. between the movable clamp arms 122, and the lock plate 124 of the turnover plate 123 can be compressed by pressing the nails 126, and the split wire plays an outward elastic force on the fixed clamp arm 121 and the movable clamp arm 122, so that the lock plate 124 is tightly attached to the compression nail 126 outwards, thereby avoiding the loosening of the compression nail 126.

The disassembly and assembly principles of the existing wire spacer bar disassembly tool and this scheme for the four-split wire spacer bar that need to be disassembled are as follows:

Existing wire spacer disassembly tool disassembly: the disassembly screw 9 is inserted from the extrusion hole 127 of the turnover plate 123 and inserted into the extrusion hole 127 of the fork frame 125, and the internal thread on the extrusion hole 127 Adapt to dismounting screw rod 9, fasten dismounting screw rod 9 and internal thread screw connection, make fixed clip arm 121 and movable clip arm 122 compress, thereby make turning plate 123 and fork frame 125 compress, thereby make lock The plate 124 is separated from the pressing nail 126, and the pressing nail 126 is not subjected to the extrusion force of the lock plate 124, and the pressing nail 126 is removed from the fork frame 125, and the movable clamp arm 122, the turning plate 123 and the lock plate 124 are flipped over relative to the fixed clamp arm 121 under the action of the hinge, so that the split wire between the fixed clamp arm 121 and the movable clamp arm 122 can be released, and the split wire is clamped in the reverse mode according to the reverse action. On the new wire spacer;

This plan disassembles the four-split wire spacer that needs to be disassembled: turn the handle 6 over so that the base pole 1 and the handle 6 remain in a coaxial state, and insert the handle 6 away from the side of the fork 125 of the base pole 1 On the extruding hole 127 and pass through two extruding holes 127 from the turnover plate 123, so that the base 5 is supported on the fork 125 (as shown in Figure 9), the screw adjusts the position of the base 5 on the screw rod 4, so that The left end of the handle 6 is located in the extrusion hole 127 on the turnover plate 123, and then the handle 6 is rotated around the rotating shaft 3 on the side away from the block 2, so that under the support of the contact position between the handle 6 and the extrusion hole 127, the The movable clamp arm 122, the turnover plate 123 and the lock plate 124 are close to the fork frame 125 (as shown in Figure 10), so that the lock plate 124 is separated from the pressing nail 126, and the pressing nail 126 can be removed. And make the fixed clamp arm 121 separate from the movable clamp arm 122, the split wire between the fixed clamp arm 121 and the movable clamp arm 122 can be released, and the split wire will be clamped on the new wire spacer according to the reverse action mode Just go up.

Comparison of the existing wire spacer disassembly tool and the application of this solution to the disassembly of the four-split wire spacer that needs to be disassembled:

1) Introduction to the parameters of the existing wire spacer disassembly tool:

Lead screw pitch: The pitch is the lead, which is the straight-line distance that the nut advances per rotation of the screw, and the lead screw pitch p=2mm.

The number of turns N1 of the lead screw needs to be tightened each time the spacer is disassembled;

It is measured that the fastening distance D=1.1cm each time; n=D/p=5.5.

However, according to the actual measurement, the number of tightening turns N1=6 should be tightened at one jaw of the spacer bar every time it is disassembled; therefore, the number of turns N1=4×6=24 turns that need to be tightened each time the spacer bar screw is disassembled (“4 ” stands for a four-split wire).

Tightening time required for each disassembly and assembly of the spacer: According to actual statistics, the average fastening time for one circle is T=10s. Tightening time T1=24×10=240s; the time required for inserting and pressing nails 126 is t1=4×10s= 40s, ("4" is a four-split wire).

Each time the spacer bar needs to be loosened, it needs to turn the number of turns N2;

In the same way, but when the lead screw is loosened, the nail has already been inserted into the jaw, so the number of turns of the lead screw needs to be turned N2 = 5 turns to loosen one jaw; the number of turns of the lead screw needs to be turned when disassembling the spacer bar to loosen the lead screw. Number N2=4*5=20 circles.

The time required to loosen the lead screw each time the spacer bar is disassembled: the loosening time T2 = 20 × 10 = 200s; the time required to pull out the pin t2 = 4 × 10s = 40s.

The time required to disassemble and assemble the spacer bar:

The time H=T1+T2+t1+t2=520s required for disassembling and assembling the spacer.

2) Introduction to the parameters of this program:

Power arm/resistance arm: L1 is approximately equal to 35cm, L2 is approximately equal to 7cm (when the base 5 is adjusted, L2 will be affected to a certain extent, and different holding positions will have a certain impact on the length of L1); L1/L2 is approximately equal to 5 ( Here it is regarded as L1/L2=5).

The labor-saving situation of this scheme: by the definition of the lever, it can be known that F1×L1=F2×L2 (F1 is the force of withholding the jaws of the spacer bar, and F2 is the reaction force of the jaws of the spacer bar), that is, F1=L2/L1×F2; bring in the data It can be seen that F1=1/5×F2; it can be concluded that within the reasonable length range of the working tool, the human body only needs to overcome one-fifth of the reaction force brought by the clamping jaws of the spacer. The average time T1 = 3s is used to detain the jaws of the spacer once.

The time required for disassembling and assembling the spacer: a total of 8 seizures are required for disassembling and assembling a spacer; the time required for disassembling and assembling the spacer is H=8×T1+t1+t2=24+80=104s.

3) The comparison between the existing wire spacer disassembly tools and the use time of this scheme;

Tb=104s<Ta=520s; Tb/Ta=1/5=20%; thus it can be known that this scheme has met the expected requirements.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or fundamentals of the present invention. The present invention can be realized in other specific forms under the condition of certain characteristics; therefore, the embodiments should be regarded as exemplary and non-restrictive in every respect, and the scope of the present invention is determined by the appended claims. Requirements rather than the above description, therefore, it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference signs in the claims should not be regarded as limiting the rights involved. Require.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. A quick assembly and disassembly tool for four-split wire spacers, comprising a base pole (1), a base (5) and a handle (6), characterized in that: the bottom end of the base pole (1) A screw (4) is connected, the base (5) is screwed on the outer wall of the screw (4), the upper side of the base support (1) is provided with a through groove transversely, and the upper end of the base support (1) Two stoppers (2) are connected to the left side of the front and rear parts, and the two stoppers (2) are respectively located at the front and rear sides of the upper left end of the through groove, and the upper end of the base pole (1) is radially installed with a rotating shaft (3 ), the rotating shaft (3) runs through the through groove, the left end of the handle (6) is connected with the rotating shaft (3), and the right side of the front and rear side walls of the handle (6) is provided with a through groove and a stopper (2 ) matching card slot (7). 2. A quick disassembly tool for four-split wire spacer according to claim 1, characterized in that: two bases (5) are provided, and the bases (5) are in the shape of hexagonal nuts. 3. A quick disassembly tool for four-split wire spacer according to claim 1, characterized in that: the total length of the base pole (1), stopper (2) and screw (4) The length of the bottom end of the base pole (1) from the center point of the rotating shaft (3) is 7 cm, and the length of the right end of the handle (6) from the center point of the rotating shaft (3) is 35 cm. 4. A quick disassembly tool for four-split wire spacer according to claim 1, characterized in that: the thickness of the left end of the handle (6) is the same as the width of the slot of the base pole (1). 5. A kind of quick dismounting tool for four-split wire spacer according to claim 1, it is characterized in that: described handle (6) comprises small-diameter handle column and large-diameter handle column, and described small-diameter handle column is the same as The shaft is connected to the left end of the large diameter handle post. 6. A quick disassembly tool for four-split wire spacers according to claim 5, characterized in that: the outer wall of the large-diameter handle column is provided with anti-slip stripes, and the diameter of the handle (6) Same diameter as the small diameter handle post. 7. A quick disassembly tool for four-split wire spacer according to claim 1, characterized in that: the maximum diameter of the outer wall of the base (5) is larger than the diameter of the handle (6).