CN111130042A

CN111130042A - Corrosion-resistant and anti-skid multi-frequency shockproof hammer and preparation method thereof

Info

Publication number: CN111130042A
Application number: CN202010050790.XA
Authority: CN
Inventors: 李传; 杜保柱; 胡宗光
Original assignee: Anhui Province Hanshan County Xingjian Foundry Factory
Current assignee: Anhui Province Hanshan County Xingjian Foundry Factory
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-05-08
Anticipated expiration: 2040-01-17
Also published as: CN111130042B

Abstract

The invention discloses a corrosion-resistant and anti-skid multi-frequency shockproof hammer and a preparation method thereof, wherein the shockproof hammer comprises a left hammer head, a right hammer head, a suspension bracket, a fixed seat and a support rod, wherein the left hammer head is welded at the left end of the support rod, the right hammer head is welded at the right end of the support rod, the fixed seat is welded at the middle part of the support rod, and the suspension bracket is fixedly connected with the fixed seat; the suspension bracket comprises an inner wire clamp, an outer wire clamp, a first bolt hole, a second bolt hole, an anti-skidding block, anti-skidding teeth and a wire hole, wherein the lower end face of the inner wire clamp is welded on the fixing seat, one side of the inner wire clamp is connected with the outer wire clamp, two penetrating wire holes are formed between the inner wire clamp and the outer wire clamp, and two ends of the middle part of the wire hole are provided with the anti-skidding blocks. The invention realizes double-hinge connection, fixedly connects the cable, the shockproof hammer and the rope, improves the anti-skid performance, forms an aluminum chromizing film by chromizing the shockproof hammer, and effectively improves the corrosion resistance of the shockproof hammer by coating a PVDF fluorocarbon resin layer.

Description

Corrosion-resistant and anti-skid multi-frequency shockproof hammer and preparation method thereof

Technical Field

The invention relates to the technical field of multi-frequency vibration dampers, in particular to a corrosion-resistant anti-skidding multi-frequency vibration damper and a preparation method thereof.

Background

On a high-voltage overhead line, a small hammer is usually hung on a wire close to two sides of an insulator, and the small hammer is called an anti-vibration hammer which is arranged for reducing vibration of the wire due to wind power. The high-voltage overhead line has high pole position and large span, and can vibrate when the wire is acted by wind. The working conditions at the wire suspension are most unfavourable when the wire vibrates. Due to multiple vibrations, fatigue failure of the wire may occur due to periodic bending. When the span of the overhead line is more than 120 meters, a damper is generally adopted to prevent vibration.

Patent No. CN201920892426.0 discloses a preformed OPGW optical cable stockbridge damper, including the stockbridge damper fastener, the inside centre interlude of stockbridge damper fastener is connected with the steel strand wires, the fixed cover in both ends of steel strand wires is equipped with the hammer block all, one side that two hammer block tops are close to the stockbridge damper fastener is all seted up flutedly, the equal fixed mounting in both sides of two recesses has the tup, the wired chuck of top fixed connection of stockbridge damper fastener, wired clamp groove is seted up on the top of line chuck, the inside in line clamp groove is inlayed and is equipped with the optical cable, the outside winding of optical cable has the preformed armor rod, the utility model discloses an outside winding of optical cable has the preformed armor rod, be convenient for install, avoid damaging the optical cable, it has the fastener to peg graft in the middle part on one side of line chuck, be convenient for fixed to the optical cable. However, the pre-twisted type optical cable vibration damper achieves the purpose of increasing connection through pre-twisting of the optical cable, so that the purpose of skid resistance is achieved, the optical cable is greatly pulled when the vibration damper vibrates integrally, the pre-twisted density is low, and the skid resistance effect is poor.

Patent No. cn201711012512.x discloses a method for manufacturing a vibration damper, comprising the steps of: preparing for casting; casting and taking out the support rod and the hanging piece; preparing program codes; carrying out welding preparation; overlaying a first supporting structure; the positions of 2 hammers are adjusted; surfacing a support structure II: connecting the automatic wire feeder and the welding gun, adjusting an initial position point of surfacing, aligning a welding head to a surfacing area left between the second hammer head and the second substrate, completing surfacing of the area, forming a second supporting structure, and fixing the second hammer head on the second substrate; the first base plate and the second base plate are disassembled, and two ends of the supporting rod are respectively pressed in the first hammer head and the second hammer head by a press machine; taking out the shockproof hammer with the first substrate and the second substrate; setting the heating temperature of a heating furnace; starting a heating furnace to heat the part; and closing the heating furnace, and taking down the vibration dampers from the first substrate and the second substrate after the parts are cooled to finish the manufacture of the parts. However, the surface of the damper is not specially treated in the preparation method, so that the damper has poor weather resistance and short service life under the corrosion of ultraviolet rays and acid rain.

Disclosure of Invention

In order to solve the problems, the invention provides a corrosion-resistant anti-slip multi-frequency shockproof hammer and a preparation method thereof.

To this end, according to one aspect of the invention: a corrosion-resistant and anti-skid multi-frequency shockproof hammer comprises a left hammer head, a right hammer head, a suspension bracket, a fixed seat and a support rod, wherein the left hammer head is welded at the left end of the support rod, the right hammer head is welded at the right end of the support rod, the fixed seat is welded in the middle of the support rod, and the suspension bracket is fixedly connected with the fixed seat;

the suspension bracket comprises an inner wire clamp, an outer wire clamp, a first bolt hole, a second bolt hole, an anti-slip block, anti-slip teeth and a wire hole, wherein the lower end face of the inner wire clamp is welded on the fixing seat, the first bolt hole is formed in the lower end of the inner wire clamp, one side of the inner wire clamp is connected with the outer wire clamp, the second bolt hole is formed in the upper end of the outer wire clamp, a wire hole with two penetrating ends is formed between the inner wire clamp and the outer wire clamp, the middle of the wire hole is provided with two anti-slip blocks with two conical ends, and the surface of each anti-slip block is provided with anti-slip teeth protruding outwards and.

Furthermore, one end of the outer wire clamp is rotatably connected with a fixing seat, the middle parts of the first bolt hole and the second bolt hole are respectively connected with a bolt in a penetrating manner, and two ends of the outer wire clamp are connected with the inner wire clamp through bolts.

Furthermore, a fixing seat is tightly attached to one end of the outer wire clamp, bolts penetrate through the middle portions of the first bolt hole and the second bolt hole, and the two ends of the outer wire clamp are connected with the inner wire clamp through the bolts.

Furthermore, the middle of the wire hole is wide and the two ends of the wire hole are narrow, the diameter of the middle of the wire hole is larger than that of the middle of the anti-skid block, the diameters of the two ends of the wire hole are smaller than those of the two ends of the anti-skid block, and the inner wire clamp and the outer wire clamp are movably connected with the anti-skid block.

Furthermore, the hole of the wide both ends in middle part of line hole is narrow, and the diameter at line hole middle part is greater than the diameter at non slipping spur middle part, and the diameter at line hole both ends is less than the diameter at non slipping spur both ends, and interior wire clamp is fixed and is connected with the non slipping spur.

Furthermore, nine anti-skidding teeth which are distributed in an annular mode are arranged in the middle of each anti-skidding block, and three anti-skidding teeth which are distributed in an annular mode are arranged on the conical surfaces at the two ends of each anti-skidding block respectively.

According to another aspect of the invention, a preparation method of the corrosion-resistant anti-skid multi-frequency vibration damper is provided, which comprises the following steps:

s101: casting; pouring molten aluminum in a molten state into a casting mold with the shapes of the left hammer head, the right hammer head, the fixed seat, the supporting rod, the inner wire clamp, the outer wire clamp and the anti-skid block consistent, and cooling and molding to obtain the left hammer head, the right hammer head, the fixed seat, the supporting rod, the inner wire clamp, the outer wire clamp and the anti-skid block;

s102: surfacing; the support rod is sequentially connected with the left hammer head, the fixed seat and the right hammer head in series and welded at the joint, and then the inner wire clamp is welded on the fixed seat;

s103: chromizing; the shockproof hammer, the outer wire clamp and the antiskid block in the step S102 are all placed in a chromizing liquid to be chromized for 2 minutes at the temperature of 80 ℃;

s104: coating; s103, spraying epoxy zinc-rich primer, varnish, a silane rare earth composite film with the thickness of 0.4-2 mm and PVDF fluorocarbon resin on the surfaces of the shockproof hammer, the outer wire clamp and the antiskid block in sequence by using an atomizer to form a protective layer;

s105: assembling; and placing an antiskid block in the middle of the shockproof hammer in the S104, and connecting the shockproof hammer in the S102 with an outer wire clamp by using a bolt.

Further, each liter of the chromizing liquid in S103 comprises the following raw materials in percentage by weight: 9g of phosphoric acid with the weight concentration of 85%, 7g of ammonium bifluoride, 35g of potassium permanganate and 3g of titanium chloride, and the raw materials are mixed with water to obtain the chromizing liquid.

Compared with the prior art, the invention has the beneficial effects that:

the invention utilizes the antiskid block to connect the ropes, particularly separates the hinged stranded ropes, single-stranded ropes are arranged between the adjacent antiskid teeth in the middle of the antiskid block, 2-3 ropes are arranged between the adjacent antiskid teeth at the two ends of the antiskid block, the stranded ropes are hinged into one strand at the two ends of the wire hole, the antiskid block is fixed by the hinging force of the ropes, the wire hole limits the antiskid teeth, thereby fixing the suspension bracket by the hinging force of the ropes to avoid the suspension bracket from sliding, simultaneously winding the ropes by using the supporting rod to hinge and connect the ropes to realize double-hinge connection, fixedly connecting the ropes, the shockproof hammers and the ropes, improving the antiskid performance, chromizing the shockproof hammers to form an aluminum chromized film, coating a PVDF fluorocarbon resin layer, and effectively improving the corrosion resistance of the shockproof hammers.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a structural view of a suspension bracket according to a first embodiment of the present invention;

FIG. 3 is a diagram of a cleat of the present invention;

FIG. 4 is a partial cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 5 is a structural view of a suspension bracket according to a second embodiment of the present invention;

FIG. 6 is a partial cross-sectional view taken along line B-B of FIG. 5 in accordance with the present invention;

fig. 7 is a flowchart of a method for manufacturing the corrosion-resistant anti-slip multi-frequency vibration damper according to the present invention.

In the figure: 1. a left hammer head; 2. a right hammer head; 3. a suspension bracket; 31. an inner wire clamp; 32. an outer wire clamp; 33. A first bolt hole; 34. a second bolt hole; 35. anti-skid blocks; 36. anti-slip teeth; 37. a wire hole; 4. a fixed seat; 5. a support rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1, a corrosion-resistant antiskid type multifrequency stockbridge damper, including left tup 1, right tup 2, mounted frame 3, fixing base 4 and bracing piece 5, the welding of the left end of bracing piece 5 has left tup 1, and the welding of the right-hand member of bracing piece 5 has right tup 2, and the welding of the middle part of bracing piece 5 has fixing base 4, and 4 fixedly connected with mounted frame 3 of fixing base.

As shown in fig. 2-4, the suspension bracket 3 includes an inner wire clip 31, an outer wire clip 32, a first bolt hole 33, a second bolt hole 34, an anti-slip block 35, anti-slip teeth 36 and wire holes 37, the lower end surface of the inner wire clip 31 is welded on the fixing base 4, the lower end of the inner wire clip 31 is provided with the first bolt hole 33, one side of the inner wire clip 31 is connected with the outer wire clip 32, one end of the outer wire clip 32 is rotatably connected with the fixing base 4, the middle parts of the first bolt hole 33 and the second bolt hole 34 are both connected with a bolt, the two ends of the outer wire clip 32 are connected with the inner wire clip 32 through bolts, the upper end of the outer wire clip 32 is provided with the second bolt hole 34, a through hole 37 with two ends is formed between the inner wire clip 31 and the outer wire clip 32, the middle part of the through hole 37 is wide, the two ends of the through hole are narrow, the diameter of the middle, inner clamp 31 and outer wire press from both sides 32 swing joint have non slipping spur 35, and the middle part in line hole 37 is equipped with both ends and is conical non slipping spur 35, and the surface of non slipping spur 35 is equipped with the anti-skidding tooth 36 on outside arch and perpendicular to non slipping spur 35 surface, and the middle part of non slipping spur 35 is equipped with nine anti-skidding teeth 36 that are the annular and distribute, is equipped with three anti-skidding tooth 36 that are the annular and distribute on the conical surface at non slipping spur 35 both ends respectively.

As shown in fig. 7, in order to better show the process of manufacturing the corrosion-resistant anti-skid multi-frequency shockproof hammer, the embodiment now provides a method for manufacturing the corrosion-resistant anti-skid multi-frequency shockproof hammer, which includes the following steps:

s101: casting; pouring molten aluminum in a molten state into a casting mold with the shapes of the left hammer head 1, the right hammer head 2, the fixed seat 4, the support rod 5, the inner wire clamp 31, the outer wire clamp 32 and the anti-skid block 35 consistent, and cooling and molding to obtain the left hammer head 1, the right hammer head 2, the fixed seat 4, the support rod 5, the inner wire clamp 31, the outer wire clamp 32 and the anti-skid block 35;

s102: surfacing; the support rod 5 is sequentially connected with the left hammer head 1, the fixed seat 4 and the right hammer head 2 in series and welded at the joint, and then the inner wire clamp 31 is welded on the fixed seat 4;

s103: chromizing; and (3) putting the shockproof hammer, the outer wire clamp 32 and the antiskid block 35 in the step (S102) into a chromizing solution, and chromizing for 2 minutes at 80 ℃, wherein each liter of the chromizing solution comprises the following raw materials in percentage by weight: 9g of phosphoric acid with the weight concentration of 85%, 7g of ammonium bifluoride, 35g of potassium permanganate and 3g of titanium chloride, and the raw materials are mixed with water to obtain a chromizing liquid;

s104: coating; s103, spraying epoxy zinc-rich primer, varnish, a silane rare earth composite film with the thickness of 0.4-2 mm and PVDF fluorocarbon resin on the surfaces of the shockproof hammer, the outer wire clamp 32 and the antiskid block 35 in sequence by using an atomizer to form a protective layer;

s105: assembling; and placing the antiskid block 35 in the middle of the shockproof hammer in the S104, and connecting the shockproof hammer in the S102 with the outer wire clamp 32 by using a bolt.

Example 2

As shown in fig. 5-6, the suspension bracket 3 includes an inner wire clip 31, an outer wire clip 32, a first bolt hole 33, a second bolt hole 34, an anti-slip block 35, anti-slip teeth 36 and wire holes 37, the lower end surface of the inner wire clip 31 is welded on the fixing base 4, the lower end of the inner wire clip 31 is provided with the first bolt hole 33, one side of the inner wire clip 31 is connected with the outer wire clip 32, one end of the outer wire clip 32 is tightly attached to the fixing base 4, the middle parts of the first bolt hole 33 and the second bolt hole 34 are both connected with a bolt in a penetrating way, the two ends of the outer wire clip 32 are connected with the inner wire clip 32 through bolts, the upper end of the outer wire clip 32 is provided with the second bolt hole 34, through holes 37 at two ends are formed between the inner wire clip 31 and the outer wire clip 32, the middle part of the through hole 37 is wide, the two ends of the through hole are narrow, the diameter, inner clamp 31 fixedly connected with non slipping spur 35, the middle part in line hole 37 is equipped with both ends and is conical non slipping spur 35, and the surface of non slipping spur 35 is equipped with outside protruding and perpendicular to non slipping spur 35 surperficial anti-skidding tooth 36, and the middle part of non slipping spur 35 is equipped with nine anti slipping spur teeth 36 that are the annular and distribute, is equipped with three anti slipping spur 36 that are the annular and distribute on the conical surface at non slipping spur 35 both ends respectively.

300 of the vibration dampers prepared in example 1 and example 2 were selected, each of which was set to 100, and left force was applied to the first set of vibration dampers, right force was applied to the second set of vibration dampers, the amount of movement of the vibration dampers with respect to the rope and the cable was measured, and acid solution having a PH of 4 was poured 5000 times to the third set of vibration dampers, and the degree of corrosion penetrated the surfaces thereof was as shown in table 1.

TABLE 1 statistical table for testing shockproof hammer

	Left-right acting force N	Amount of movement CM	Degree of surface corrosion
				Example 1	20～150N	0.32～0.5	No obvious corrosion
Example 2	20～150N	0.35～0.5	No obvious corrosion

As can be seen from Table 1, the moving amount of the vibration damper test of the embodiment 1 and the embodiment 2 is less than 1 cm, and the surface has no obvious corrosion, which shows that the vibration damper has better anti-skid and corrosion-resistant performance.

The invention utilizes the antiskid block 35 to connect the ropes, particularly separates the hinged stranded ropes, single-stranded ropes are arranged between the adjacent antiskid teeth 36 at the middle part of the antiskid block 35, 2-3 ropes are arranged between the adjacent antiskid teeth 36 at the two ends of the antiskid block 35, the stranded ropes are hinged into one strand at the two ends of the wire hole 37, the antiskid block 36 is fixed by the hinging force of the ropes, the wire hole 37 limits the antiskid teeth 36, thereby fixing the suspension bracket 3 by utilizing the hinging force of the ropes to avoid the suspension bracket 3 from sliding, simultaneously, the support rod 5 is utilized to wind the ropes to hinge and connect the ropes, realize double-hinge connection, fixedly connect the ropes, the shockproof hammer and the ropes, improve the antiskid performance, and perform chromating treatment on the shockproof hammer to form an aluminum chromated film, coat a PVDF fluorocarbon resin layer, and effectively improve the corrosion resistance of the shockproof hammer.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The corrosion-resistant and anti-skid multi-frequency shockproof hammer is characterized by comprising a left hammer head (1), a right hammer head (2), a suspension frame (3), a fixed seat (4) and a support rod (5), wherein the left hammer head (1) is welded at the left end of the support rod (5), the right hammer head (2) is welded at the right end of the support rod (5), the fixed seat (4) is welded in the middle of the support rod (5), and the suspension frame (3) is fixedly connected with the fixed seat (4);

suspension bracket (3) include inner clamp (31), outer clamp (32), first bolt hole (33), second bolt hole (34), non slipping spur (35), non slipping spur (36) and line hole (37), the lower extreme end face welding of inner clamp (31) is on fixing base (4), first bolt hole (33) have been seted up to the lower extreme of inner clamp (31), one side of inner clamp (31) is connected with outer clamp (32), second bolt hole (34) have been seted up to the upper end of outer clamp (32), form the penetrating line hole in both ends (37) between inner clamp (31) and outer clamp (32), the middle part of line hole (37) is equipped with both ends and is conical non slipping spur (35), the surface of non slipping spur (35) is equipped with outside protruding and non slipping spur (36) perpendicular to non slipping spur (35) surface.

2. The corrosion-resistant and skid-resistant multi-frequency vibration damper according to claim 1, wherein one end of the outer wire clamp (32) is rotatably connected with the fixing seat (4), the middle parts of the first bolt hole (33) and the second bolt hole (34) are respectively connected with a bolt in a penetrating manner, and the two ends of the outer wire clamp (32) are connected with the inner wire clamp (32) through the bolts.

3. The corrosion-resistant and skid-resistant multi-frequency vibration damper according to claim 1, wherein the fixing seat (4) is tightly attached to one end of the outer wire clamp (32), the middle parts of the first bolt hole (33) and the second bolt hole (34) are connected with bolts in a penetrating manner, and the inner wire clamp (32) is connected to two ends of the outer wire clamp (32) through the bolts.

4. The corrosion-resistant anti-skid multi-frequency shockproof hammer according to claim 1, wherein the middle of the wire hole (37) is wide and the two ends of the wire hole are narrow, the diameter of the middle of the wire hole (37) is larger than that of the middle of the anti-skid block (35), the diameters of the two ends of the wire hole (37) are smaller than those of the two ends of the anti-skid block (35), and the inner wire clip (31) and the outer wire clip (32) are movably connected with the anti-skid block (35).

5. The corrosion-resistant anti-skid multi-frequency shockproof hammer according to claim 1, wherein the middle of the wire hole (37) is wide and the two ends of the wire hole are narrow, the diameter of the middle of the wire hole (37) is larger than that of the middle of the anti-skid block (35), the diameters of the two ends of the wire hole (37) are smaller than those of the two ends of the anti-skid block (35), and the inner wire clamp (31) is fixedly connected with the anti-skid block (35).

6. The anti-corrosion anti-skid multi-frequency shockproof hammer according to claim 1, characterized in that nine anti-skid teeth (36) are disposed in the middle of the anti-skid block (35), and three anti-skid teeth (36) are disposed on the tapered surfaces at the two ends of the anti-skid block (35).

7. A method for preparing a corrosion-resistant anti-slip multi-frequency vibration damper according to any one of claims 1 to 6, comprising the steps of:

s101: casting; pouring molten aluminum into a casting mold with the same shape of the left hammer head (1), the right hammer head (2), the fixed seat (4), the support rod (5), the inner wire clamp (31), the outer wire clamp (32) and the anti-skid block (35), and cooling and molding to obtain the left hammer head (1), the right hammer head (2), the fixed seat (4), the support rod (5), the inner wire clamp (31), the outer wire clamp (32) and the anti-skid block (35);

s102: surfacing; the support rod (5) is sequentially connected with the left hammer head (1), the fixed seat (4) and the right hammer head (2) in series and welded at the joint, and then the inner wire clamp (31) is welded on the fixed seat (4);

s103: chromizing; the shockproof hammer, the outer wire clamp (32) and the antiskid block (35) in the step S102 are all placed in a chromizing liquid to be chromized for 2 minutes at the temperature of 80 ℃;

s104: coating; s103, spraying epoxy zinc-rich primer, varnish, a silane rare earth composite film with the thickness of 0.4-2 mm and PVDF fluorocarbon resin on the surfaces of the shockproof hammer, the outer wire clamp (32) and the antiskid block (35) in sequence by using an atomizer to form a protective layer;

s105: assembling; and placing an antiskid block (35) in the middle of the shockproof hammer in the S104, and connecting the shockproof hammer in the S102 with an outer wire clamp (32) by using a bolt.

8. The method for preparing the corrosion-resistant anti-slip multi-frequency vibration damper according to claim 7, wherein each liter of the chromizing liquid in S103 comprises the following raw materials: 9g of phosphoric acid with the weight concentration of 85%, 7g of ammonium bifluoride, 35g of potassium permanganate and 3g of titanium chloride, and the raw materials are mixed with water to obtain the chromizing liquid.