A method for manufacturing energy-saving electric pole

Abstract

The present invention discloses a method for manufacturing an energy-saving electric pole, which specifically relates to the technical field of electric pole manufacturing, and includes the following specific steps: Step 1, manufacturing a hollow inner cylinder and a disassembled outer cylinder: a hollow inner cylinder is processed by cold drawing process, and then a plurality of disassembled outer cylinders are processed by casting with a special mold, and then two semicircular connecting flanges are taken, and the two connecting flanges are respectively welded to the outer end top and the outer end bottom of the disassembled outer cylinder; Step 2, manufacturing a steel bar skeleton: eight straightened steel bars are selected, and then a wire rod machine is used to wind thin steel bars around the outer ends of the eight tightened steel bars. The present invention arranges a plurality of disassembled outer cylinders that can be assembled outside the hollow inner cylinder, and during the process of pouring concrete, they are poured section by section, which shortens the distance of each pouring, and can also use a vibrating rod to vibrate the concrete to discharge the control existing in the concrete, and avoid the phenomenon of honeycomb and pockmarks, so as to ensure the strength of the final finished electric pole.

Description

Technical Field

[0001] The invention relates to the technical field of electric pole manufacturing, and in particular to a method for manufacturing an energy-saving electric pole. Background Art

[0002] Electric poles are also called electric poles. As the name implies, they are poles for hanging electric wires. In the early days, all kinds of electric poles started from wooden poles, even including high-voltage poles with not too high voltage levels. Later, due to the development of steel bars and concrete, combined with technical exploration, the principle of centrifugal force was used to manufacture reinforced concrete tapered cement poles and equal-diameter cement poles instead of most wooden poles. Cement poles are durable, corrosion-resistant, temperature-resistant, high-strength, and crack-resistant. In addition, the applicable wood is gradually scarce, and the appearance of cement poles is smooth and beautiful, which is more convenient for urban beautification.

[0003] The production of cement poles is done by steam curing in a steel mold at a certain speed (generating enough centrifugal force to make the cement material form a hollow pole in the middle). The steel mold is composed of two half molds to facilitate the addition and removal of finished products. Therefore, before forming, it is necessary to mix and stir the steel skeleton (steel cage) of the pole with the cement slurry (cement + gravel + sand + water) that meets the required proportions. Therefore, the production principle is simple, but it requires certain lifting equipment, sites and certain mechanical equipment.

[0004] At present, most of the poles are directly cast in one go during the manufacturing process. For example, a prefabricated cement pole manufacturing process is provided in the Chinese patent application with publication number CN110936491B. In this process, the steel skeleton is directly placed in the cavity and then cast. Due to the long length of the pole and the narrow space in the cavity, it is not convenient to place a vibrator from the top, which leads to the formation of air bubbles in the concrete, resulting in honeycomb and other phenomena in the concrete, which will eventually affect the strength of the pole after solidification.

[0005] Therefore, it is necessary to invent a method for manufacturing energy-saving electric poles to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide an energy-saving electric pole manufacturing method, by arranging a plurality of detachable outer cylinders that can be assembled outside the hollow inner cylinder, and pouring the concrete section by section during the pouring process, thereby shortening the distance of each pouring, and being able to use a vibrating rod to vibrate the concrete to remove the control existing in the concrete, avoiding the occurrence of honeycomb and pockmarks, so as to ensure the strength of the final finished electric pole.

[0007] In order to achieve the above object, the present invention provides the following technical solution: a method for manufacturing an energy-saving electric pole, comprising the following specific steps:

[0008] Step 1: Making a hollow inner cylinder and a disassembled outer cylinder: Using a cold drawing process to process a hollow inner cylinder, and then using a special mold to cast and process multiple disassembled outer cylinders, and then taking two semicircular connecting flanges, and respectively welding the two connecting flanges to the outer end top and outer end bottom of the disassembled outer cylinder;

[0009] Step 2: Make a steel bar skeleton: Select eight straightened steel bars and tighten them with a stress gun, then use a wire rod machine to wind thin steel bars around the outer ends of the eight tightened steel bars, and finally fix the steel bars with a seat ring to form a steel bar skeleton inside the pole;

[0010] Step 3: Assemble the hollow inner tube, disassemble the outer tube and the steel frame: First, put the steel frame on the outer end of the hollow inner tube, then use a crane to vertically erect the hollow inner tube and the steel frame, then take two disassembled outer tubes and install them on the outer ends of the bottom of the steel frame respectively, and use the connecting flange at the bottom of the disassembled outer tube to fix the two disassembled outer tubes on the top of the circular base. During the connection process between multiple disassembled outer tubes, it is necessary to insert the plug-in plate into the plug-in groove;

[0011] Step 4, pouring concrete: pouring the evenly mixed concrete into the two disassembled outer cylinders assembled in step 3, so that the concrete can fill the cavity between the hollow inner cylinder and the disassembled outer cylinder, and can wrap the steel skeleton in the concrete, and stop adding concrete when the top plane of the concrete approaches the top surfaces of the two disassembled outer cylinders, and then take a plurality of vibrating rods, insert them into the poured concrete, and vibrate the concrete between the two disassembled outer cylinders;

[0012] After the vibration treatment, two more disassembled outer cylinders are selected and installed on the top of the two disassembled outer cylinders at the bottom respectively. The upper and lower disassembled outer cylinders are fixed together by contacting flanges and bolts. Then, concrete is poured between the two newly installed disassembled outer cylinders. When the top of the concrete approaches the top surface of the two disassembled outer cylinders, the concrete is stopped. Then, the vibrating rod is inserted into the concrete again, and the bottom end of the vibrating rod is inserted into the lower concrete by 5-10 cm. Then, the vibration treatment is continued. Then, the above operation is repeated until the space between the outside of the hollow inner cylinder and the disassembled inner cylinder is filled.

[0013] Step 5: Steam chamber curing and molding: Move the disassembled outer tube and circular base after pouring together with the concrete inside to the steam chamber for curing and molding to make the pole.

[0014] Preferably, in step one, the hollow inner cylinder is welded to the circular base, and the circular base is fixed to two disassembly outer cylinders located on the top thereof by connecting flanges and bolts.

[0015] Preferably, in step 4, the number of vibrating rods is 8, and the 8 vibrating rods are evenly spaced apart. The 8 vibrating rods vibrate the poured concrete at the same time, which can improve the efficiency of vibration and accelerate the discharge of gas in the concrete. Moreover, the 8 vibrating rods are located at 8 different points, and their simultaneous operation can achieve the effect of treating all concrete more comprehensively, avoiding the trouble of replacing the points of the vibrating rods.

[0016] Preferably, in step 4, the processing time of each vibrating rod is 20-30 seconds, until the concrete surface no longer sinks and no bubbles appear. When no bubbles appear, it means that the gas in the concrete has been discharged and the next step of operation can be carried out.

[0017] Preferably, in step 4, after the concrete pouring is completed, the circular top plate is sleeved on the outer end of the hollow inner tube, and the outer tube and the circular top plate are fixed by removing the connecting flange and bolts at the top end of the outer tube.

[0018] Preferably, a through hole is formed on the circular top plate, and a threaded hole is formed on the circular base.

[0019] Preferably, in step five, the electric pole located between the disassembly outer sleeves and the hollow inner sleeve can be taken out by disassembling the plurality of disassembly outer sleeves and then pulling the hollow inner sleeve out from the interior of the electric pole.

[0020] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0021] 1. By arranging multiple assembled and disassembled outer cylinders outside the hollow inner cylinder and pouring the concrete section by section during the pouring process, the distance of each pouring is shortened, and the concrete can be vibrated with a vibrating rod to remove the control in the concrete and avoid the phenomenon of honeycomb and pockmarks, so as to ensure the strength of the final finished pole;

[0022] 2. The cavity formed between the hollow inner tube and the disassembled outer tube is directly poured with concrete to form a hollow pole, and then directly enters the steam chamber for maintenance, which saves the operation of centrifuging using a centrifuge in the prior art, reduces the processing procedures of the pole, is conducive to reducing production costs, and achieves energy-saving effects;

[0023] In addition, in the prior art, the pouring of concrete requires the use of a feeder for distribution, and the edge portion also requires manual cleaning. In comparison, the present invention can directly pour concrete into the space between the hollow inner cylinder and the disassembled outer cylinder without the need for a special feeder, which can further reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the manufacturing process of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure after the hollow inner cylinder and the circular base are assembled with the disassembled outer cylinder of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure in which the circular top plate of the present invention is installed on the hollow inner cylinder;

[0028] Figure 4 For the present invention Figure 3 A top view of

[0029] Figure 5 It is a schematic diagram of the circular base structure of the present invention.

[0030] Description of reference numerals:

[0031] 1 circular base, 2 hollow inner cylinder, 3 disassembly outer cylinder, 4 plug-in groove, 5 plug-in plate, 6 connection flange, 7 circular top plate. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] The present invention provides Figure 1-5 The method for manufacturing an energy-saving electric pole shown in the figure comprises the following specific steps:

[0034] Step 1, making the hollow inner cylinder 2 and the disassembly outer cylinder 3: the hollow inner cylinder 2 is processed by cold drawing process, and then a plurality of disassembly outer cylinders 3 are processed by casting through a special mold, and then two semicircular connecting flanges 6 are taken, and the two connecting flanges 6 are respectively welded to the outer top and the outer bottom of the disassembly outer cylinder 3, and the hollow inner cylinder 2 is welded to the circular base 1, and the circular base 1 and the two disassembly outer cylinders 3 located on the top thereof are fixed by the connecting flanges 6 and bolts;

[0035] Step 2: Make a steel bar skeleton: Select eight straightened steel bars and tighten them with a stress gun. The tightened steel bars can have a mobile bearing capacity, which is beneficial to improve the bending resistance of the pole after forming and improve the stability of the pole. Then use a wire rod machine to wind thin steel bars around the outer ends of the eight tightened steel bars, and finally fix the steel bars with a seat ring to form a steel bar skeleton inside the pole.

[0036] Step 3: Assemble the hollow inner tube 2, disassemble the outer tube 3 and the steel frame: First, put the steel frame on the outer end of the hollow inner tube 2, then use a crane to vertically erect the hollow inner tube 2 and the steel frame, then take two disassembled outer tubes 3 and install them on the outer ends of the bottom of the steel frame respectively, and use the connecting flange 6 at the bottom of the disassembled outer tube 3 to fix the two disassembled outer tubes 3 on the top of the circular base 1. During the connection process between multiple disassembled outer tubes 3, it is necessary to insert the plug-in plate 5 into the plug-in groove 4, such as Figure 2 As shown;

[0037] In order to facilitate the fixing of the circular base 1 and the disassembly outer cylinder 3 at the bottom, as shown in FIG. Figure 5 As shown, threaded holes are provided on the circular base 1. When installing, it is only necessary to insert bolts through the connection flanges 6 on both sides of the disassembly outer cylinder 3 and screw the bottom ends of the bolts into the threaded holes on the circular base 1. Under the connection of the bolts, the circular base 1 and the disassembly outer cylinder 3 at the bottom can be fixed together. When disassembling, it is only necessary to remove the bolts from the circular base 1 and the connection flanges 6 with the help of tools.

[0038] Step 4, pouring concrete: pouring the evenly mixed concrete into the two disassembled outer cylinders 3 assembled in step 3, so that the concrete can fill the cavity between the hollow inner cylinder 2 and the disassembled outer cylinder 3, and can wrap the steel skeleton in the concrete, until the top plane of the concrete is close to the top surfaces of the two disassembled outer cylinders 3, stop adding concrete, and then take a plurality of vibrating rods, insert them into the poured concrete, and vibrate the concrete between the two disassembled outer cylinders 3;

[0039] In order to shorten the working time of the vibrating rod, the number of vibrating rods in the present application is 8, and the 8 vibrating rods are evenly spaced. The 8 vibrating rods start working at the same time inside the concrete to improve the efficiency of vibration. The processing time of each vibrating rod is 20-30 seconds, until the concrete surface no longer sinks and no bubbles appear. When no bubbles appear, it means that the gas in the concrete has been completely discharged. In this process, by using the vibrating rod to process the poured concrete, the gas in the concrete can be effectively discharged, thereby avoiding the appearance of honeycomb pockmarks inside the concrete, and also ensuring that the strength of the solidified pole is not affected by bubbles.

[0040] After the vibration treatment, two more disassembled outer cylinders 3 are selected and installed on the top of the two disassembled outer cylinders 3 at the bottom respectively. The upper and lower disassembled outer cylinders 3 are fixed together by contacting flanges and bolts. Then, concrete is poured between the two newly installed disassembled outer cylinders 3. When the top of the concrete is close to the top surface of the two disassembled outer cylinders 3, the concrete is stopped. Then, the vibrating rod is inserted into the concrete again, and the bottom end of the vibrating rod is inserted into the lower concrete by 5-10 cm. Then, the vibration treatment is continued. Then, the above operation is repeated until the space between the outside of the hollow inner cylinder 2 and the disassembled inner cylinder is filled. By inserting the bottom end of the vibrating rod into the concrete poured first, the vibrating rod is vibrated together with the newly poured concrete to eliminate the stratification caused by the multiple pouring, so as to ensure that the final formed concrete pole can be a whole, which helps to ensure the strength of the pole.

[0041] After the concrete pouring is completed, the circular top plate 7 is put on the outer end of the hollow inner cylinder 2, and the outer cylinder 3 and the circular top plate 7 are fixed by removing the connecting flange 6 and bolts at the top of the outer cylinder 3. In order to facilitate the connection with the connecting flange 6, as shown in FIG. Figure 4 As shown, a through hole is provided on the circular top plate 7. When installing the circular top plate 7, it is only necessary to put the circular top plate 7 on the outer top end of the hollow inner tube 2, and then align the circular top plate 7 with the hole on the connecting flange 6 at the outer end of the disassembled outer tube 3 at the top, and then pass the bolts through the through hole on the circular top plate 7 and the connecting flange 6, and finally screw nuts on the bolts to fix the circular top plate 7 on the top of the hollow inner tube 2. The circular top plate 7 is used to cover the top of the poured concrete to ensure the flatness of the top of the poured concrete, and to prevent foreign matter from mixing into the concrete and affecting the quality of the pole.

[0042] Step 5: Steam chamber curing and molding: the disassembled outer cylinder 3 and the circular base 1 after pouring are moved to the steam chamber for curing and molding together with the concrete inside, and the pole can be made;

[0043] The electric pole located between the dismantling outer shells and the hollow inner shell 2 can be taken out by dismantling a plurality of dismantling outer shells and then pulling the hollow inner shell 2 out from the inside of the electric pole.

[0044] It is known that in the prior art, ordinary round poles are formed by centrifugal molding, and the production process includes: the steel cage is loaded into the outer mold, the outer mold is assembled, and while the outer mold is rotating on the centrifuge, the feeder extends into the model to spread the material, and then the model is rotated at high speed to make the concrete dense under the action of centrifugal force, and then the mold is steam cured and demolded.

[0045] Compared with the above-mentioned manufacturing method, the present invention saves the centrifuge rotation forming process. The saving of this step can save the economic cost of the centrifuge in the process of electric pole processing, which is beneficial to saving the production cost of the electric pole, and can also avoid the consumption of electric energy in the centrifugal operation process, thereby achieving the effect of energy saving.

[0046] In addition, in the prior art, the pouring of concrete requires the use of a feeder for distribution, and the edge portion also requires manual cleaning. In comparison, the present invention can directly pour the concrete between the hollow inner tube 2 and the disassembled outer tube 3 without the need for a special feeder, which can further reduce production costs. In addition, the present invention adopts a method of pouring concrete in sections for multiple times, and can use a vibrator to discharge the air in the concrete after each pouring, which can effectively avoid the occurrence of honeycombed surfaces inside the concrete and other phenomena that affect the strength of the concrete.

[0047] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A method for manufacturing an energy-saving electric pole, characterized in that: The specific steps include: Step 1: Making a hollow inner cylinder and a disassembled outer cylinder: Using a cold drawing process to process a hollow inner cylinder, and then using a special mold to cast and process multiple disassembled outer cylinders, and then taking two semicircular connecting flanges, and respectively welding the two connecting flanges to the outer end top and outer end bottom of the disassembled outer cylinder; Step 2: Make a steel bar skeleton: Select eight straightened steel bars and tighten them with a stress gun, then use a wire rod machine to wind thin steel bars around the outer ends of the eight tightened steel bars, and finally fix the steel bars with a seat ring to form a steel bar skeleton inside the pole; Step 3: Assemble the hollow inner tube, disassemble the outer tube and the steel frame: First, put the steel frame on the outer end of the hollow inner tube, then use a crane to vertically erect the hollow inner tube and the steel frame, then take two disassembled outer tubes and install them on the outer ends of the bottom of the steel frame respectively, and use the connecting flange at the bottom of the disassembled outer tube to fix the two disassembled outer tubes on the top of the circular base. During the connection process between multiple disassembled outer tubes, it is necessary to insert the plug-in plate into the plug-in groove; Step 4, pouring concrete: pouring the evenly mixed concrete into the two disassembled outer cylinders assembled in step 3, so that the concrete can fill the cavity between the hollow inner cylinder and the disassembled outer cylinder, and can wrap the steel skeleton in the concrete, and stop adding concrete when the top plane of the concrete approaches the top surfaces of the two disassembled outer cylinders, and then take a plurality of vibrating rods, insert them into the poured concrete, and vibrate the concrete between the two disassembled outer cylinders; After the vibration treatment, two more disassembled outer cylinders are selected and installed on the top of the two disassembled outer cylinders at the bottom respectively. The upper and lower disassembled outer cylinders are fixed together by contacting flanges and bolts. Then, concrete is poured between the two newly installed disassembled outer cylinders. When the top of the concrete approaches the top surface of the two disassembled outer cylinders, the concrete is stopped. Then, the vibrating rod is inserted into the concrete again, and the bottom end of the vibrating rod is inserted into the lower concrete by 5-10 cm. Then, the vibration treatment is continued. Then, the above operation is repeated until the space between the outside of the hollow inner cylinder and the disassembled inner cylinder is filled. Step 5: Steam chamber curing and molding: Move the disassembled outer tube and circular base after pouring together with the concrete inside to the steam chamber for curing and molding to make the pole.

2. The method for manufacturing an energy-saving electric pole according to claim 1, characterized in that: In step one, the hollow inner cylinder is welded to the circular base, and the circular base is fixed to two disassembled outer cylinders located on the top thereof by connecting flanges and bolts.

3. The method for manufacturing an energy-saving electric pole according to claim 1, characterized in that: In step 4, the number of vibrating rods is 8, and the 8 vibrating rods are evenly spaced apart.

4. The method for manufacturing an energy-saving electric pole according to claim 1, characterized in that: In step 4, the treatment time of each vibrator is 20-30 seconds, until the concrete surface no longer sinks and no bubbles appear.

5. The method for manufacturing an energy-saving electric pole according to claim 1, characterized in that: In step 4, after the concrete pouring is completed, the circular top plate is put on the outer end of the hollow inner tube, and the outer tube and the circular top plate are fixed by removing the connecting flange and bolts at the top end of the outer tube.

6. The method for manufacturing an energy-saving electric pole according to claim 5, characterized in that: The circular top plate is provided with a through hole, and the circular base is provided with a threaded hole.

7. The method for manufacturing an energy-saving electric pole according to claim 1, characterized in that: In step five, the electric pole located between the disassembly outer shells and the hollow inner shell can be taken out by disassembling the plurality of disassembly outer shells and then pulling the hollow inner shell out from the interior of the electric pole.

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