CN112993905B - A kind of anti-vibration hammer for power transmission line and using method thereof - Google Patents

Abstract

The invention discloses an anti-vibration hammer for a power transmission line and a use method thereof, and relates to the technical field of electric power equipment. The anti-vibration hammer in the present invention includes a clamp and a hammer head. The clamp is composed of semi-circular clamp plates. There are two semi-circular clamp plates in total, and the two semi-circular clamp plates are symmetrically arranged. Sealing plates are arranged on the open end faces, and sealing grooves are arranged on both open end faces of the other semi-circular splint, and the sealing plates and the sealing grooves are arranged in a clearance fit; the two semi-circular splinting plates are only connected by Components snap-fit. In the present invention, the fastening between the two semicircular splints is fixed by the arrangement of the connecting assembly, so as to avoid the loosening of the connection with the transmission line due to shaking, and at the same time, the partition plate in the device separates the inside of the hammer into a plurality of liquid storages. The cavity can adjust the overall weight and center of gravity of the device, so that the device has a good vibration reduction effect and is suitable for the use of different types of transmission lines.

Description

A kind of anti-vibration hammer for power transmission line and using method thereof

technical field

The invention belongs to the technical field of electric power equipment, and in particular relates to an anti-vibration hammer for power transmission lines and a method for using the same, which are mainly used for the vibration damping effect of power transmission lines in use.

Background technique

The anti-vibration hammer is designed to reduce the vibration of the wire due to the wind. The high-voltage overhead line has a high pole position and a large span. When the wire is subjected to wind, it will vibrate. When the wire vibrates, the working conditions of the wire hanging The most unfavorable, due to repeated vibration, the wire will suffer fatigue damage due to periodic bending. When the span of the overhead line is greater than 120 meters, the anti-vibration hammer is generally used to prevent vibration. The anti-vibration hammer is used in the construction of existing transmission lines. It is widely used, but the existing anti-vibration hammer still has the following deficiencies in practical use:

1. When the existing anti-vibration hammer is installed on the transmission line, it is mainly fixed by bolts and clamps. However, in such a fixing method, during the long-term use of the anti-vibration hammer, the anti-vibration hammer will shake with the transmission line. When the bolts are fitted at the fixture, the bolts will loosen and disengage, which will cause the anti-vibration hammer to fall off;

2. In the actual use of the existing anti-vibration hammer, in order to improve the effect of vibration reduction, a plurality of metal balls connected with springs will be set in the hammer head, and the vibration of the transmission line can be offset by the up and down vibration of the spring, but this The overall vibration reduction effect of the anti-vibration hammer is still poor;

3. The existing anti-vibration hammers are produced by a unified standard weight. Because the diameter or material of the transmission line is different, in actual use, the vibration amplitude of the transmission line has a certain difference, which leads to a certain difference in actual use. There are great differences in the vibration reduction effect of the same anti-vibration hammer on various transmission lines;

For example, the existing publication CN108493883A - a new type of anti-vibration hammer, discloses a crossbar, a fixed cylinder and a metal ball, the top center of the crossbar is welded with the fixed cylinder through a support rod, and the rear surface wall of the fixed cylinder is welded. A second tightening bolt is threadedly connected at the center position, and the second tightening bolt vertically penetrates the rear surface wall of the fixing cylinder and extends to the inner cavity of the fixing cylinder. A fastening bolt, and the two first fastening bolts vertically penetrate the front surface wall of the fixing cylinder and extend to the inner cavity of the fixing cylinder. The cable passes through the inner cavity of the fixing cylinder, and the first tightening bolt and the second tightening bolt are respectively tightened, and the high-voltage power transmission cable is squeezed into the inside of the first card slot and the second card slot, so that the cable can be located inside the fixing cylinder. The transmission cables are distributed in an S shape, which increases the frictional resistance, so that the anti-vibration hammer and the transmission cables are fixed more firmly;

Although this publication can have a good vibration reduction effect, it still has the above three deficiencies in the actual use process;

Therefore, it is necessary to improve the existing technology, and the problems of the existing technology have been solved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an anti-vibration hammer for transmission lines, which is stable in connection with the transmission line, has a good vibration reduction effect, and can be used for different types of transmission lines, and a method of using the same, which solves the problem of the existing anti-vibration hammer and the transmission line. The connection between them is not firm, the vibration reduction effect is poor, and they cannot be applied to different types of transmission lines.

In order to solve the above-mentioned technical problems, the present invention is achieved through the following technical solutions:

The present invention is an anti-vibration hammer for power transmission line, comprising a clamp and a hammer head. There are two hammer heads in total, and the two hammer heads are symmetrically connected to both ends of a first connecting rod. The middle part of the rod is also fixedly connected with a second connecting rod, and the other end of the second connecting rod is fixedly connected to the outer wall of the middle part of the clamp. and the two semi-circular splints are symmetrically arranged, one of the semi-circular splints is provided with sealing plates on both open end surfaces, and the other semi-circular splint is provided with sealing grooves on both open end surfaces, Clearly fit between the aligned sealing plates and the sealing grooves; the two semicircular splints are only fastened and fixed by connecting components;

The interior of the hammer head is juxtaposed with a plurality of dividing plates along the horizontal direction, and the plurality of dividing plates divide the interior of the hammer head into a plurality of liquid storage chambers, and the inner bottom surface of the liquid storage chamber is fixedly connected with a damping plate. a spring, the other end of the shock-absorbing spring is fixedly connected with a shock-absorbing ball;

An inner thread through hole is also provided on the top surface of the hammer head above the liquid storage chamber, and a sealing column is arranged in the inner thread through hole;

An outer thread is arranged on the outer side wall of the sealing column, and a cross-shaped clamping groove is arranged on the top surface of the sealing column, and the outer thread and the through hole of the inner thread are screwed together.

Further, the connection assembly used for the two semi-circular splints to be fastened and fixed comprises a fixed plate and a first plug-in plate, and the fixed plate is integrally formed on the outer walls on both sides of the open end of the semi-circular splint;

A plurality of first plug boards are arranged in an array on one side of the two fixing plates on one of the semicircular splints, and a plurality of rectangular slots are arranged in an array on the two fixing plates on the other semicircular splint.

Further, a plurality of first plug boards and a plurality of rectangular slots located on the same side of the fixture are arranged in a one-to-one correspondence, the first plug boards are slidably inserted in the rectangular sockets, and a side surface of the free end of the first plug board is arranged in a one-to-one correspondence. The upper part is integrally formed with a first convex part;

The first plug board is an elastic metal plate.

Further, the connection assembly used for the two semicircular splints to be fastened and fixed includes a fixed ring and a second plug plate, two sides of the clamp are symmetrically provided with a fixed ring, and one side of the fixed ring is evenly arranged along the circumferential direction. There are a plurality of second plug boards, and a plurality of L-shaped slots are evenly distributed along the circumferential direction on both ends of the clamp.

Further, a plurality of the second plug-in boards and a plurality of the L-shaped slots are arranged in a one-to-one correspondence, the second plug-in boards are slidably inserted into the L-shaped sockets, and one of the free ends of the second plug-in boards A second convex portion is integrally formed on the side surface;

The second plug board is an elastic metal plate.

Further, the fixing ring is an elastic metal ring, and the fixing ring is provided with a slot along the axis direction.

Further, metal elastic clips are evenly distributed on the inner walls of both ends of the clamp along the circumferential direction, and the free ends of the metal elastic clips are inclined toward the axis of the clamp and extend toward the middle of the clamp.

The invention also provides a method for using an anti-vibration hammer for a power transmission line, which specifically includes the following steps:

S1: The staff selects the corresponding weight of liquid mercury according to the diameter of the transmission line to be matched;

S2: Unscrew the sealing column with a screwdriver and separate it from the hammer, and add the prepared liquid mercury into the liquid storage chambers on the two hammers equally;

S3: Re-tighten the sealing column with a screwdriver to fit in the through hole of the internal thread on the hammer head;

S4: The two semi-circular splints are clamped on both sides of the transmission line respectively, and the transmission line is covered;

S5: The fastening and fixing between the two semicircular splints are realized through the cooperation between the connecting components or the cooperation between the connecting components and the semicircular splint.

The present invention has the following beneficial effects:

1. In the present invention, through the arrangement of two semi-circular splints, the transmission line can be covered in actual use, and then combined with the setting of the connection components, the two semi-circular splints can be fixed only by buckling. , to avoid loosening of the bolts during actual use, which may cause the device to fall off as a whole.

2. In the present invention, through the arrangement of the liquid storage cavity, in actual use, the staff can add liquid mercury into the liquid storage cavity through the through hole of the internal thread, and through the arrangement of the liquid mercury, the friction between the vibration damping ball and the liquid mercury can be increased. Viscosity to increase the vibration damping effect of the device.

3. In the present invention, the interior of the hammer head can be divided into a plurality of liquid storage cavities of equal size through the setting of the partition plate. In actual use, the staff can choose the number of parts of liquid mercury to be added according to the characteristics of the installed wires. and position, thereby changing the overall weight and center of gravity of the device, making the device suitable for various types of transmission lines.

Of course, it is not necessary for any product embodying the present invention to achieve all of the above-described advantages simultaneously.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

Fig. 2 is the right side view of the overall structure of the first embodiment of the present invention;

3 is an exploded view of the fixture in the first embodiment of the present invention;

Fig. 4 is the bottom view of Fig. 3 of the present invention;

Fig. 5 is the assembly drawing of the sealing column in the present invention;

Fig. 6 is the sectional view of the sealing column in the present invention;

7 is a schematic diagram of the overall structure of the fixture in Embodiment 2 of the present invention;

FIG. 8 is an exploded view of the clamp in the second embodiment of the present invention.

In the accompanying drawings, the list of components represented by each number is as follows:

1. Semicircular splint; 2. Second connecting rod; 3. First connecting rod; 4. Hammer head; 5. Sealing column; 6. Fixing ring; 101. Metal elastic clip; 102. Fixing plate; 103, sealing plate; 104, the first plug plate; 105, the first convex part; 106, the rectangular slot; 107, the sealing groove; 108, the L-shaped slot; Separation plate; 404, liquid storage chamber; 405, damping ball; 501, external thread; 502, cross-shaped card slot; 601, second insert plate; 602, second convex part; 603, card slot.

Detailed ways

The technical solutions 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.

Example 1

1-4, the present invention is an anti-vibration hammer for power transmission lines, including a clamp and a hammer head 4. There are two hammer heads 4 in total, and the two hammer heads 4 are symmetrically connected to the first connecting rod. On both ends of 3, the middle part of the first connecting rod 3 is also fixedly connected with a second connecting rod 2, and the other end of the second connecting rod 2 is fixedly connected to the outer wall of the middle part of the clamp. There are two circular splints 1 in total, and the two semi-circular splints 1 are arranged symmetrically, and sealing plates 103 are provided on both open end faces of one semi-circular splint 1, while the other semi-circular splint 1 is provided with sealing plates 103. Sealing grooves 107 are provided on both open end faces, and the sealing plates 103 and the sealing grooves 107 arranged in alignment are gap-fitted; The splint 1 is only fastened and fixed by the connecting component;

When the device is in use, the installation of the device on the transmission line can be realized only by buckling, so as to avoid falling off during use due to fixing by bolts, so that the device is more convenient in use and more firmly connected to the transmission line;

Metal elastic clips 101 are evenly distributed on the inner walls of both ends of the clamp along the circumferential direction, and the free ends of the metal elastic clips 101 are inclined to the axis of the clamp and extend to the middle of the clamp. The coordination between the lines is more firm, preventing the clamp from moving along the axis of the transmission line, and the elastic arrangement of the metal elastic clip 101 itself makes the device suitable for the use of transmission lines of different diameters.

3-4, the connection assembly includes a fixing plate 102 and a first inserting plate 104, and the fixing plate 102 is integrally formed on the outer walls on both sides of the open end of the semicircular splint 1;

One side of the two fixing plates 102 on one of the semicircular splints 1 is provided with a plurality of first plugs 104 in an array, and at the same time, the two fixing plates 102 on the other semicircular splint 1 are provided with a plurality of first inserts in an array. a rectangular slot 106;

The plurality of first inserts 104 and the plurality of rectangular slots 106 located on the same side of the fixture are arranged in a one-to-one correspondence, the first inserts 104 are slidably inserted into the rectangular slots 106, and one side of the free end of the first insert 104 The upper part is integrally formed with a first convex part 105;

The first plug board 104 is an elastic metal plate;

The working principle of the above arrangement is that when in use, the two semi-circular splints 1 are wrapped on the power line and pressed against each other, so that the first convex portion 105 passes through the rectangular slot 106 and is placed on the first plug board 104. Under the action of automatic reset, the engagement of the first convex portion 105 is realized.

5-6, the interior of the hammer head 4 is provided with a plurality of partition plates 403 in parallel along the horizontal direction, and the plurality of partition plates 403 divide the interior of the hammer head 4 into a plurality of liquid storage chambers 404. A damping spring 402 is fixedly connected to the inner bottom surface of the cavity 404 , and a damping ball 405 is fixedly connected to the other end of the damping spring 402 . up and down movement in the direction;

The top surface of the hammer head 4 above the liquid storage chamber 404 is also provided with an internal thread through hole 401, and the internal thread through hole 401 is provided with a sealing column 5;

An outer thread 501 is provided on the outer side wall of the sealing column 5, and a cross-shaped slot 502 is provided on the top surface of the sealing column 5, and the outer thread 501 and the inner thread through hole 401 are screwed together;

The working principle of the above setting is that, when in use, the staff unscrew the sealing column 5 with a tool, and inject liquid mercury into the liquid storage cavity 404 through the internal thread through hole 401. Of course, the liquid mercury injected into the liquid storage cavity 404 in the present invention is The liquid is not limited to liquid mercury, but can also be other heavy metal liquids with high viscosity. After injecting liquid mercury, sealing can be achieved by re-tightening the sealing column 5 to avoid volatilization of liquid mercury.

The invention also provides a method for using an anti-vibration hammer for a power transmission line, which specifically includes the following steps:

S1: The staff selects the corresponding weight of liquid mercury according to the diameter of the transmission line to be matched;

S2: Unscrew the sealing column 5 with a screwdriver and separate it from the hammer head 4, and evenly add the prepared liquid mercury into the liquid storage chambers 404 on the two hammer heads 4;

S3: Re-tighten the sealing column 5 with a screwdriver to fit in the internal thread through hole 401 on the hammer head 4;

S4: The two semi-circular splints 1 are respectively clamped on both sides of the transmission line, and the transmission line is covered;

S5: The fastening and fixing between the two semicircular splints 1 are realized through the cooperation between the connecting components or the cooperation between the connecting components and the semicircular splint 1 .

Embodiment 2

This embodiment has made certain changes under the premise of realizing the technical effect of the present invention. Compared with the first embodiment, this embodiment has made the following changes;

Please refer to FIGS. 7-8 , the connecting assembly for the two semicircular splints 1 to be fastened together includes a fixing ring 6 and a second inserting plate 601 . The fixing rings 6 are symmetrically arranged on both sides of the clamp. A plurality of second plug-in boards 601 are evenly arranged along the circumferential direction on one side, and a plurality of L-shaped slots 108 are arranged evenly along the circumferential direction on both ends of the clamp;

A plurality of second plugs 601 and a plurality of L-shaped slots 108 are arranged in a one-to-one correspondence, the second plugs 601 are slidably inserted into the L-shaped slots 108, and one side of the free end of the second plugs 601 is integrally formed a second convex portion 602 is provided;

The second plug board 601 is an elastic metal plate;

The fixing ring 6 is an elastic metal ring, and the fixing ring 6 is provided with a clamping slot 603 along the axis direction. The setting of the clamping slot 603 is convenient for the fixing ring 6 to pass through and be sleeved on the transmission line;

The working principle of the above setting is that when in use, the two semi-circular splints 1 are wrapped on the power line, and the two fixing rings 6 are sleeved on the power line from both ends of the clamp, and the second convex portion 602 is placed on the power line. After being inserted into the L-shaped slot 108 , the second protrusion 602 can be engaged by the automatic reset of the second plug board 601 .

The above are only preferred embodiments of the present invention, and do not limit the present invention. Any modification to the technical solutions recorded in the foregoing embodiments, and equivalent replacement of some of the technical features therein, any modification, equivalent replacement, or improvement made shall be belong to the protection scope of the present invention.

Claims (8)

1. The utility model provides a damper for power transmission line, includes anchor clamps and tup (4), tup (4) are provided with two altogether, and two tups (4) symmetric connection are on the both ends of head rod (3), fixedly connected with second connecting rod (2) are still gone back to the middle part of head rod (3), the other end fixed connection of second connecting rod (2) is on the outer wall at anchor clamps middle part, its characterized in that: the clamp is composed of semicircular clamping plates (1), the number of the semicircular clamping plates (1) is two, the two semicircular clamping plates (1) are symmetrically arranged, sealing plates (103) are arranged on two opening end faces of one semicircular clamping plate (1), meanwhile, sealing grooves (107) are arranged on two opening end faces of the other semicircular clamping plate (1), and the sealing plates (103) and the sealing grooves (107) which are arranged in an aligned mode are in clearance fit; the two semicircular clamping plates (1) are buckled and fixed only through the connecting component;

a plurality of partition plates (403) are arranged in parallel in the horizontal direction in the hammer head (4), the interior of the hammer head (4) is uniformly divided into a plurality of liquid storage cavities (404) by the partition plates (403), a damping spring (402) is fixedly connected to the inner bottom surface of each liquid storage cavity (404), and a damping ball (405) is fixedly connected to the other end of each damping spring (402);

an internal thread through hole (401) is further formed in the top surface of the hammer head (4) above the liquid storage cavity (404), and a sealing column (5) is arranged in the internal thread through hole (401);

the outer side wall of the sealing column (5) is provided with an external thread (501), the top surface of the sealing column (5) is provided with a cross-shaped clamping groove (502), and the external thread (501) is in spiral fit with the internal thread through hole (401).

2. A damper for a transmission line according to claim 1, characterized in that: the connecting assembly for buckling and fixing the two semicircular clamping plates (1) comprises a fixing plate (102) and a first inserting plate (104), wherein the fixing plate (102) is integrally formed on the outer walls of the two sides of the opening end of the semicircular clamping plate (1);

a plurality of first inserting plates (104) are arranged on one side face of each of the two fixing plates (102) on one semicircular clamping plate (1) in an array mode, and a plurality of rectangular inserting grooves (106) are arranged on the two fixing plates (102) on the other semicircular clamping plate (1) in an array mode.

3. A damper for transmission lines according to claim 2, characterized in that: the first inserting plates (104) and the rectangular inserting grooves (106) are positioned on the same side of the clamp in a one-to-one correspondence mode, the first inserting plates (104) are inserted into the rectangular inserting grooves (106) in a sliding mode, and first protruding portions (105) are integrally formed on one side face of the free end of the first inserting plates (104);

the first inserting plate (104) is an elastic metal plate.

4. A damper for a transmission line according to claim 1, characterized in that: a coupling assembling for two semicircular clamping plate (1) lock are fixed includes solid fixed ring (6) and second picture peg (601), the bilateral symmetry of anchor clamps is provided with solid fixed ring (6), be provided with a plurality of second picture pegs (601) along the circumference equipartition on the side of solid fixed ring (6), be provided with a plurality of L shape slots (108) along the circumference equipartition on the both ends face of anchor clamps simultaneously.

5. A damper for transmission lines according to claim 4, characterized in that: the plurality of second inserting plates (601) and the plurality of L-shaped slots (108) are arranged in a one-to-one correspondence mode, the second inserting plates (601) are inserted into the L-shaped slots (108) in a sliding mode, and second convex parts (602) are integrally formed on one side face of the free end of each second inserting plate (601);

the second inserting plate (601) is an elastic metal plate.

6. A damper for transmission lines according to claim 4, characterized in that: the fixing ring (6) is an elastic metal ring, and the fixing ring (6) is provided with a clamping seam (603) along the axis direction.

7. A damper for a transmission line according to claim 1, characterized in that: the clamp is characterized in that metal elastic clamping strips (101) are uniformly distributed on the inner walls of the two ends of the clamp along the circumferential direction, and the free ends of the metal elastic clamping strips (101) are inclined to the axis of the clamp and extend to the middle of the clamp.

8. The method for using a damper for power transmission lines according to any one of claims 1 to 7, wherein: the method specifically comprises the following steps:

s1: the staff selects liquid mercury with corresponding weight according to the diameter of the power transmission line matched with the staff;

s2: the sealing column (5) is unscrewed and separated from the hammers (4) by a screwdriver, and prepared liquid mercury is uniformly added into the liquid storage cavities (404) on the two hammers (4);

s3: the sealing column (5) is screwed and matched in the internal thread through hole (401) on the hammer head (4) again by a screwdriver;

s4: the two semicircular clamping plates (1) are respectively clamped at two sides of the power transmission line to coat the power transmission line;

s5: the two semicircular clamping plates (1) are buckled and fixed through the matching between the connecting assemblies or the matching between the connecting assemblies and the semicircular clamping plates (1).

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