CN112490966A - Ladder type glass fiber reinforced plastic cable bridge processing method - Google Patents
Ladder type glass fiber reinforced plastic cable bridge processing method Download PDFInfo
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- CN112490966A CN112490966A CN202011319282.3A CN202011319282A CN112490966A CN 112490966 A CN112490966 A CN 112490966A CN 202011319282 A CN202011319282 A CN 202011319282A CN 112490966 A CN112490966 A CN 112490966A
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0418—Covers or lids; Their fastenings
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- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of cable laying equipment, in particular to a ladder type glass fiber reinforced plastic cable bridge processing method, which comprises a bridge main body and a cover plate, wherein the bridge main body is divided into an inner layer, an inner core and an outer layer, the inner layer has higher wear resistance and avoids abrasion in wiring, the inner core has stronger tensile resistance and increases the compressive strength of the bridge main body, the outer layer has higher corrosion resistance and avoids the damage of the bridge main body caused by severe environment, the service life of the bridge main body is prolonged, the protection capability of the bridge main body on cable lines is increased, a threaded rod and a limiting strip are arranged, the convenient installation type of the bridge main body is increased, a clapboard is arranged, cables are conveniently arranged in the bridge main body and are convenient to use, a waterproof breathable film is arranged, the ventilation is convenient, the ventilation between the inside and the outside of the bridge main body is increased, and the deterioration of the internal environment of the, the service life of the cable is ensured.
Description
Technical Field
The invention relates to the technical field of cable laying equipment, in particular to a method for processing a ladder type glass fiber reinforced plastic cable bridge.
Background
The cable bridge plays a role in protecting and guiding routing cables laid in the cable bridge, the traditional cable bridge is mainly divided into a groove type structure, a ladder type structure, a tray type structure, a grid type structure and the like, in the development of the modern society, the ladder type cable bridge is widely applied, the traditional ladder type cable bridge comprises a bridge main body and a cover plate welded with the top end of the bridge main body, wherein the bridge main body comprises a bottom supporting piece and two bridge side plates which are respectively positioned at two sides of the bottom supporting piece and are used for being welded with the cover plate, when the cables need to be laid, the cables are arranged in the bridge main body, the bottom supporting piece is used for supporting the cables, the bridge side plates are used for limiting the cables, most of the cable bridges used at present are made of aluminum alloy materials, the cable bridges are easy to deform due to extrusion and easy to corrode when being used in severe environment, the cable cannot be protected.
Particularly, when the operation environment is severe, if collision and extrusion happen carelessly, the cable bridge main body is easy to be damaged, the cable is seriously damaged, and an electric shock accident is caused, so that the strength requirement of the cable bridge in the working condition is high, in addition, in an area with large change of the working temperature range, the material of the common glass fiber reinforced plastic cable bridge is easy to expand, bulge and the like, along with the prolonging of the service time, the bulge part is easy to crack, the strength of the cable bridge main body is reduced, the accident such as collapse is caused, and the like, and the service defect is large.
Disclosure of Invention
The invention aims to provide a method for processing a ladder-type glass fiber reinforced plastic cable bridge, which aims to solve the problems that the traditional glass fiber reinforced plastic cable bridge in the background art is not enough in strength, easy to damage and deform and incapable of being used in severe environment.
In order to achieve the purpose, the invention provides the following technical scheme: the ladder-type glass fiber reinforced plastic cable bridge machining method comprises a bridge main body and a cover plate, wherein the bridge main body is composed of an inner layer, an inner core and an outer layer, a partition plate is uniformly and fixedly mounted in the inner layer, limiting strips are fixedly mounted on two sides of the upper end of the outer layer, threaded holes are formed in two sides of the lower end of the cover plate, threaded rods are connected to the inner threads of the threaded holes, through holes are uniformly formed in the upper surface of the cover plate, water-resisting breathable films are mounted in the through holes in an embedded mode, the outer layer is made of the same material as the cover plate, and the bridge main body and the cover plate are of a U.
Preferably, the inner layer is composed of an anti-wear agent, epoxy resin, reinforcing fibers, a curing agent, an accelerator and an antistatic agent.
Preferably, the anti-wear agent, the epoxy resin, the reinforcing fiber, the curing agent, the accelerator and the antistatic agent in the inner layer are 1-5 parts of the anti-wear agent, 25-30 parts of the epoxy resin, 65-70 parts of the reinforcing fiber, 1-2 parts of the curing agent, 1-2.5 parts of the accelerator and 3-5 parts of the antistatic agent according to the weight ratio.
Preferably, the reinforcing fiber in the inner layer is formed by mixing organic reinforcing fiber and inorganic reinforcing fiber according to the weight ratio of 1.5:0.5, the organic reinforcing fiber is one of aramid fiber, polyester fiber, polypropylene fiber and polyimide fiber, and the inorganic reinforcing fiber is one of glass fiber, carbon fiber and asbestos fiber.
Preferably, the inner core is composed of 28-35 parts by weight of epoxy resin, 60-70 parts by weight of reinforcing fiber, 1-5 parts by weight of toughening agent, 2-3 parts by weight of stabilizing agent, 1-2 parts by weight of curing agent and 1-1.5 parts by weight of accelerating agent.
Preferably, the outer layer is composed of epoxy resin, reinforcing fibers, a stabilizer, a curing agent, an accelerator and polytetrafluoroethylene, and the epoxy resin, the reinforcing fibers, the stabilizer, the curing agent, the accelerator and the polytetrafluoroethylene are 20-25 parts by weight of the epoxy resin, 68-72 parts by weight of the reinforcing fibers, 1-1.5 parts by weight of the curing agent, 1.2-3 parts by weight of the accelerator and 1-1.2 parts by weight of the polytetrafluoroethylene.
Preferably, the bridge body and the cover plate are processed by the following steps:
step one, processing the mold to a set temperature, controlling the temperature at 230 ℃ of 200-.
Step two, after the inner layer, the inner core and the outer layer are processed and molded, continuous felts are respectively stuck on the outer surface of the inner layer, the inner surface and the outer surface of the inner core and the inner surface of the outer layer, and the temperature of the continuous felts is controlled at 175-180 ℃ when the continuous felts are stuck.
And thirdly, pasting and fixing the inner layer, the inner core and the outer layer through continuous felts, so that the inner layer, the inner core and the outer layer are mutually fixed.
And fourthly, uniformly arranging the through holes on the upper surface of the machined cover plate through a hole-opening machine, pasting and fixing the waterproof breathable films in the through holes, and filling and sealing the contact areas of the waterproof breathable films and the through holes by using sealant.
And fifthly, uniformly arranging the threaded holes on two sides of the cover plate, and screwing the threaded rod into the threaded holes.
And sixthly, uniformly fixing the partition plates in the bridge frame main body through hot melt adhesive in the bridge frame main body, and fixing the limiting strips on two sides of the bridge frame main body through the hot melt adhesive, so that the production of the invention is completed.
The invention has the technical effects and advantages that:
1. the bridge main body is divided into the inner layer, the inner core and the outer layer, the inner layer has high wear resistance, abrasion during wiring is avoided, the inner core has high tensile resistance, the compressive strength of the bridge main body is improved, the outer layer has high corrosion resistance, the bridge main body is prevented from being damaged by severe environment, the service life of the bridge main body is prolonged, and the protection capability of the bridge main body on a cable line is improved.
2. According to the invention, the threaded rod is arranged on the cover plate, the limiting strips are arranged on the two sides of the bridge main body, and when the cover plate covers the bridge main body, the threaded rod is screwed to enable the threaded rod to be clamped with the limiting strips, so that the installation convenience of the cable bridge is increased, and the separation plate is arranged, so that cables can be conveniently arranged in the bridge main body, and the cable bridge is convenient to use.
3. The cable bridge is provided with the waterproof breathable film, so that the ventilation is facilitated, the ventilation between the inside and the outside of the bridge main body is increased, the deterioration of the internal environment of the bridge main body in long-term use is avoided, and the service life of the cable is ensured.
Drawings
FIG. 1 is a front cross-sectional view of the structure of the present invention.
Fig. 2 is a schematic structural diagram of a bridge main body in the structure of the invention.
Fig. 3 is a schematic structural diagram of a cover plate in the structure of the present invention.
Fig. 4 is a composition diagram of the bridge main body of the invention.
FIG. 5 is a performance test chart of the present invention.
In the figure: 1. a bridge frame body; 2. a cover plate; 3. an inner layer; 4. an inner core; 5. an outer layer; 6. a partition plate; 7. a limiting strip; 8. a threaded hole; 9. a threaded rod; 10. a through hole; 11. a water-proof and breathable film.
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.
The invention provides a processing method of a ladder type glass fiber reinforced plastic cable bridge frame as shown in figures 1-5, which comprises a bridge frame main body 1 and a cover plate 2, wherein the processing steps of the bridge frame main body 1 and the cover plate 2 are as follows:
step one, processing the mold to a set temperature, controlling the temperature at 230 ℃ of 200-.
Step two, after the inner layer 3, the inner core 4 and the outer layer 5 are processed and formed, continuous felts are respectively stuck on the outer surface of the inner layer 3, the inner surface and the outer surface of the inner core 4 and the inner surface of the outer layer 5, and the temperature of the continuous felts is controlled at 175-180 ℃ when the continuous felts are stuck.
And step three, the inner layer 3, the inner core 4 and the outer layer 5 are fixed by sticking continuous felts, so that the inner layer 3, the inner core 4 and the outer layer 5 are fixed with each other.
And step four, uniformly forming through holes 10 on the upper surface of the processed and formed cover plate 2 through a hole-forming machine, adhering and fixing a waterproof breathable film 11 in the through holes 10, and filling and sealing the contact area between the waterproof breathable film 11 and the through holes 10 by using a sealant.
And fifthly, uniformly forming threaded holes 8 on two sides of the cover plate 2, and screwing the threaded rods 9 into the threaded holes 8.
And sixthly, uniformly fixing the partition plates 6 in the bridge frame main body 1 through hot melt adhesive in the bridge frame main body 1, and fixing the limiting strips 7 on two sides of the bridge frame main body 1 through the hot melt adhesive, so that the production of the invention is completed.
The crane span structure main part 1 is by inlayer 3, inner core 4 and outer 5 are constituteed, the even fixed mounting in inside of inlayer 3 has baffle 6, the equal fixed mounting in upper end both sides of outer 5 has spacing 7, the lower extreme both sides of apron 2 all set up threaded hole 8, threaded hole 8's inside threaded connection has threaded rod 9, through-hole 10 has evenly been seted up to the upper surface of apron 2, the inside of through-hole 10 is inlayed and is installed water proof ventilated membrane 11, and outer 3 is the same with the material of apron 2, crane span structure main part 1 is U type structure with apron 2.
The inner layer 3 is composed of a wear-resistant agent, epoxy resin, reinforced fiber, a curing agent, an accelerant and an antistatic agent according to the weight ratio of 1-5 parts of the wear-resistant agent, 25-30 parts of the epoxy resin, 65-70 parts of the reinforced fiber, 1-2 parts of the curing agent, 1-2.5 parts of the accelerant and 3-5 parts of the antistatic agent, the reinforced fiber is formed by mixing organic reinforced fiber and inorganic reinforced fiber according to the weight ratio of 1.5:0.5, the organic reinforced fiber is one of aramid fiber, polyester fiber, polypropylene fiber and polyimide fiber, the inorganic reinforced fiber is one of glass fiber, carbon fiber and asbestos fiber, the inner layer 3 has stronger wear-resistant performance by adding the wear-resistant agent, and further, when an external cable is installed and laid, the dead friction between the cable and the bridge frame main body 1 is avoided, resulting in damage to the gantry body 1.
The inner core 4 is composed of epoxy resin, reinforced fiber, toughening agent, stabilizer, curing agent and accelerator, wherein the epoxy resin, the reinforced fiber, the toughening agent, the stabilizer, the curing agent and the accelerator are 28-35 parts by weight of epoxy resin, 60-70 parts by weight of reinforced fiber, 1-5 parts by weight of toughening agent, 2-3 parts by weight of stabilizer, 1-2 parts by weight of curing agent and 1-1.5 parts by weight of accelerator, and the toughening agent is added into the inner core 4, so that the tensile resistance of the inner core 4 is greatly improved, and the tensile resistance of the invention is enhanced.
The outer layer 5 is composed of epoxy resin, reinforced fibers, a stabilizer, a curing agent, an accelerant and polytetrafluoroethylene according to the weight ratio of 20-25 parts of epoxy resin, 68-72 parts of reinforced fibers, 1-1.5 parts of curing agent, 1.2-3 parts of accelerant and 1-1.2 parts of polytetrafluoroethylene, and the polytetrafluoroethylene is added in the outer layer 5, so that the corrosion resistance of the outer layer is greatly improved, the corrosion damage of the invention when the invention is used in a severe environment is avoided, and the service life of the invention is prolonged.
When the cable bridge is installed, the bridge main body 1 is arranged at an installation position, cables are arranged inside the bridge main body 1, the partition plates 6 are arranged to facilitate the arrangement of external cables, the cover plate 2 covers the upper surface of the bridge main body 1 and is provided with the threaded rod 8, the threaded rod 8 is screwed to enable the threaded rod 8 to be clamped with the limiting strips 7, the separation of the cover plate 2 and the bridge main body 1 is further avoided, the installation is facilitated, the upper surface of the cover plate 2 is uniformly provided with the through holes 10, the breathable waterproof film 11 is arranged inside the through holes 10, the circulation of the bridge main body 1 and external air is further ensured, and the situation that when the cable bridge is used for a long time, gas inside the bridge main body 1 is turbid, so that the turbid gas corrodes the external cables and the service life of the external cables is influenced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The processing method of the ladder type glass fiber reinforced plastic cable bridge comprises a bridge main body (1) and a cover plate (2), and is characterized in that: the crane span structure is characterized in that the crane span structure main body (1) comprises an inner layer (3), an inner core (4) and an outer layer (5), a baffle (6) is uniformly and fixedly mounted in the inner part of the inner layer (3), a limiting strip (7) is fixedly mounted on both sides of the upper end of the outer layer (5), threaded holes (8) are formed in both sides of the lower end of the cover plate (2), threaded rods (9) are connected to internal threads of the threaded holes (8), through holes (10) are uniformly formed in the upper surface of the cover plate (2), water-resisting breathable films (11) are mounted in the inner part of the through holes (10), the outer layer (3) is the same as the material of the cover plate (2), and the crane span structure main body (1) is of a U-shaped.
2. The method for processing the ladder-type glass fiber reinforced plastic cable bridge frame according to claim 1, wherein the method comprises the following steps: the inner layer (3) is composed of a wear-resistant agent, epoxy resin, reinforcing fibers, a curing agent, an accelerant and an antistatic agent.
3. The method for processing the ladder-type glass fiber reinforced plastic cable bridge frame according to claim 2, wherein the method comprises the following steps: the inner layer (3) comprises 1-5 parts of wear-resistant agent, 25-30 parts of epoxy resin, 65-70 parts of reinforcing fiber, 1-2 parts of curing agent, 1-2.5 parts of accelerator and 3-5 parts of antistatic agent according to the weight ratio.
4. The method for processing the ladder-type glass fiber reinforced plastic cable bridge frame according to claim 2, wherein the method comprises the following steps: the reinforcing fiber in the inner layer (3) is formed by mixing organic reinforcing fiber and inorganic reinforcing fiber according to the weight ratio of 1.5:0.5, the organic reinforcing fiber is one of aramid fiber, polyester fiber, polypropylene fiber and polyimide fiber, and the inorganic reinforcing fiber is one of glass fiber, carbon fiber and asbestos fiber.
5. The method for processing the ladder-type glass fiber reinforced plastic cable bridge frame according to claim 1, wherein the method comprises the following steps: the inner core (4) is composed of epoxy resin, reinforced fiber, a toughening agent, a stabilizer, a curing agent and an accelerator, wherein the epoxy resin, the reinforced fiber, the toughening agent, the stabilizer, the curing agent and the accelerator are 28-35 parts by weight of epoxy resin, 60-70 parts by weight of reinforced fiber, 1-5 parts by weight of the toughening agent, 2-3 parts by weight of the stabilizer, 1-2 parts by weight of the curing agent and 1-1.5 parts by weight of the accelerator.
6. The method for processing the ladder-type glass fiber reinforced plastic cable bridge frame according to claim 1, wherein the method comprises the following steps: the outer layer (5) is composed of epoxy resin, reinforced fibers, a stabilizer, a curing agent, an accelerant and polytetrafluoroethylene, and the epoxy resin, the reinforced fibers, the stabilizer, the curing agent, the accelerant and the polytetrafluoroethylene are 20-25 parts by weight of epoxy resin, 68-72 parts by weight of reinforced fibers, 1-1.5 parts by weight of curing agent, 1.2-3 parts by weight of accelerant and 1-1.2 parts by weight of polytetrafluoroethylene.
7. The method for processing the ladder-type glass fiber reinforced plastic cable bridge frame according to claim 1, wherein the method comprises the following steps: the bridge frame main body (1) and the cover plate (2) are processed by the following steps:
step one, processing a mold to a set temperature, controlling the temperature at 230 ℃ of 200-;
step two, after the inner layer (3), the inner core (4) and the outer layer (5) are processed and formed, continuous felts are respectively stuck on the outer surface of the inner layer (3), the inner surface and the outer surface of the inner core (4) and the inner surface of the outer layer (5), and the temperature of the continuous felts is controlled to be 175-180 ℃ when the continuous felts are stuck;
thirdly, the inner layer (3), the inner core (4) and the outer layer (5) are fixed by sticking continuous felts, so that the inner layer (3), the inner core (4) and the outer layer (5) are fixed with each other;
fourthly, uniformly forming the through holes (10) on the upper surface of the machined and formed cover plate (2) through a hole-opening machine, sticking and fixing the waterproof breathable film (11) in the through holes (10), and filling and sealing the contact area between the waterproof breathable film (11) and the through holes (10) by using sealant;
fifthly, uniformly arranging the threaded holes (8) on two sides of the cover plate (2), and screwing the threaded rods (9) into the threaded holes (8);
sixthly, the partition plates (6) are uniformly fixed inside the bridge frame main body (1) through hot melt adhesive inside the bridge frame main body (1), and the limiting strips (7) are fixed on the two sides of the bridge frame main body (1) through the hot melt adhesive, so that the production of the invention is completed.
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| CN202011319282.3A CN112490966A (en) | 2020-11-23 | 2020-11-23 | Ladder type glass fiber reinforced plastic cable bridge processing method |
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| CN202011319282.3A CN112490966A (en) | 2020-11-23 | 2020-11-23 | Ladder type glass fiber reinforced plastic cable bridge processing method |
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