Energy-saving preparation device and preparation process for partially prestressed reinforced concrete electric pole

Abstract

The invention relates to the technical field of electric pole preparation, in particular to an energy-saving preparation device and process for a partial prestressed reinforced concrete electric pole, and the energy-saving preparation device comprises a forming mold, a tensioning assembly, a loosening assembly and a shearing assembly, and three centrifugal supporting discs are arranged on the forming mold. When a tensioning assembly is matched to conduct prestress tensioning of a main rib, gap support between a functional pedestal and a supporting lantern ring is provided, when tensioning is finished, the extrusion force of the functional pedestal and the supporting lantern ring can be loosened through gap shrinkage, an electric pole can be conveniently moved out of a forming mold in the later period, and a second clamping piece of the tensioning assembly is matched with an adaptive movable cover to conduct prestress tensioning on the main rib. Manual frequent intervention is not needed, the efficiency of convenience of tensioning operation is improved, in addition, the shearing assembly can rapidly shear the formed electric pole main reinforcements, and the machining efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pole manufacturing technology, specifically to an energy-saving manufacturing device and process for partially prestressed reinforced concrete poles. Background Technology

[0002] Reinforced concrete poles are overhead line support components made of concrete as the base and steel bars or prestressed steel bars as the load-bearing skeleton, formed by centrifugal molding and curing. They are mostly ring-shaped or hollow structures of equal diameter, with high strength, durability, good insulation, and low cost. They are widely used in overhead lines for power, communication, and lighting. Among them, the tapered poles are 10m*190mm, 12m*190mm, and 15m*190mm. These three types of tapered cement poles are produced by two processes: prestressed and non-prestressed. The disadvantages of both are: prestressed poles are too brittle and easily break when subjected to external forces or overloads, while non-prestressed poles are too soft and easily bend when subjected to external forces, under certain loads, in severe weather, wind, and rain. Ring marks are easily formed on the outside of the bend, and rainwater can easily seep in through the ring marks, affecting the lifespan and causing potential dangers. Existing prestressed reinforced concrete poles are mainly manufactured using centrifugal molding with molds. During manufacturing, the main reinforcement bars of the steel cage need to be fixed at both ends and prestressed. During centrifugal molding, the poles are in a tensioned state under prestress. Therefore, after the concrete is formed, it is not easy to disassemble them. Furthermore, the connection and disassembly of the tensioning wedges are mostly done manually during prestressing, which is inconvenient to operate. Summary of the Invention

[0003] The purpose of this invention is to provide an energy-saving preparation device and process for partially prestressed reinforced concrete poles, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving fabrication device for partially prestressed reinforced concrete poles, comprising: The forming mold is provided with three centrifugal support plates. Both ends of the forming mold are provided with support collars. Positioning plates and functional pads are respectively inserted into the two support collars. A pole steel cage is inserted into the centrifugal support plate. The pole steel cage includes several main bars. Positioning plates and functional pads are respectively inserted through the two ends of the several main bars. The tensioning assembly has a control pad horizontally positioned on one side near the forming mold. The tensioning assembly includes a hydraulic tensioning cylinder and an anchoring plate. The hydraulic tensioning cylinder is horizontally movably positioned above the control pad. The hydraulic tensioning cylinder includes a hydraulic tensioning sleeve and a hydraulic tensioning movable seat. Several second clamping plates and first clamping plates are respectively inserted into one side of the hydraulic tensioning movable seat and the anchoring plate. The release assembly is located on the side of the functional pad near the positioning plate, and the release assembly includes a retaining push plate; A shearing assembly is disposed within a functional pad. The shearing assembly includes several downward cutting blades and several auxiliary cutting blades, which are arranged in cooperation with each other, and the main rib is located between the downward cutting blades and the auxiliary cutting blades.

[0005] Preferably, the positioning plate has several arc-shaped gourd grooves, and one end of several main bars of the pole reinforcement cage movably passes through several arc-shaped gourd grooves. The end of the main bar passing through the arc-shaped gourd groove is provided with a pier. The larger diameter side of the arc-shaped gourd groove is larger than the diameter of the pier, and the smaller diameter side of the arc-shaped gourd groove is smaller than the diameter of the pier but larger than the diameter of the main bar. A sealing plate is provided on the side of the support collar of the positioning plate by bolt insertion.

[0006] Preferably, a distribution groove is provided on one side of the functional pad, and a plurality of retaining piston grooves are provided through the distribution groove on the side near the retaining push plate. Each retaining push plate is provided with a retaining piston rod on the side near the retaining piston groove. The plurality of retaining piston rods are respectively movably inserted into the retaining piston groove. A sealing pad is provided on the side of the support collar away from the functional pad, and the main rib movably passes through the sealing pad. One side of the retaining push plate abuts against the sealing pad.

[0007] Preferably, the lower end of the hydraulic tensioning cylinder is provided with a movable control seat, and the upper end of the control pad is provided with a drive screw. The lower end of the movable control seat is horizontally inserted into the control pad through a guide rod and connected to the drive screw through a screw thread sleeve. The hydraulic tensioning movable seat is movably inserted into the center of the hydraulic tensioning sleeve. A limiting plate is fixedly provided on the side of the hydraulic tensioning sleeve near the functional pad, and an anchoring plate is provided between the limiting plate and the functional pad.

[0008] Preferably, the anchor plate has a plurality of retaining grooves for the reinforcing bars, and one end of the main reinforcing bar passes through one of the retaining grooves. The hydraulic tensioning movable seat has a plurality of tensioning grooves for the reinforcing bars. One end of the main reinforcing bar passes through the retaining groove and the tensioning groove of the hydraulic tensioning movable seat. The retaining groove and the tensioning groove are both provided with a conical groove on the side away from the functional pad. The first clamp is inserted into the conical groove of the retaining groove, and the second clamp is inserted into the conical groove of the tensioning groove. The first clamp and the tensioning groove respectively clamp the main reinforcing bar. The side of the limiting plate that is sleeved on the main reinforcing bar and close to the anchor plate is provided with a conical guide groove.

[0009] Preferably, the hydraulic tensioning movable seat extends from the side away from the limiting plate, and is movably fitted with an adaptive movable cover. One end of the main rib that passes through the second clamping piece movably passes through the adaptive movable cover. The adaptive movable cover is provided with magnetic rings on the side of the adaptive movable cover near the second clamping piece, and one side of the second clamping piece is in contact with the magnetic rings.

[0010] Preferably, a first annular groove is provided on the side of the hydraulic tensioning movable seat near the adaptive movable cover, and a plurality of first piston grooves are provided through the first annular groove on the side of the adaptive movable cover. A plurality of piston rods are provided on the side of the adaptive movable cover near the first piston grooves, and the plurality of piston rods are respectively inserted into the first piston grooves and fitted with adaptive springs.

[0011] Preferably, a second annular groove is provided on the side of the functional pad away from the retaining push plate, a shearing groove is provided on the side of the functional pad that is sleeved with the main rib, and a knife groove is provided on the side of the functional pad located at the shearing groove. A second piston groove is provided in the functional pad between the second annular groove and the knife groove. One side of the second piston groove is connected to the second annular groove. The lower cutting blade and the auxiliary cutting blade are located on the upper and lower sides of the knife groove, respectively. A piston rod is vertically and movably inserted into the second piston groove. The lower end of the piston rod movably passes through the knife groove and is connected to the upper end of the lower cutting blade. A return spring is sleeved on the lower end of the piston rod located in the second piston groove.

[0012] Preferably, the functional pad has an inner groove on one side of the distribution groove and the second annular groove. The inner groove is connected to the distribution groove and the second annular groove respectively and has a pressure-holding hydraulic interface and a shearing power interface. A one-way valve is inserted into the pressure-holding hydraulic interface, and a protective cover is provided on the upper end of the shearing power interface.

[0013] A manufacturing process for an energy-saving device using partially prestressed reinforced concrete poles includes the following steps: Step 1: Fit a positioning plate onto one end of the welded and topped pole reinforcement cage, and fit sealing pads and functional pads onto the other end of the pole reinforcement cage one by one. Then, place the pole reinforcement cage together with the positioning plate, sealing pads and functional pads into the forming mold, and fix the position of the main reinforcement by bolting the positioning plate to the support collar. Step 2: Connect the anchor plate to one end of the main reinforcement through the functional pad and insert the first wedge according to the number and layout of the main reinforcement to be prestressed. Then, push the hydraulic tensioning cylinder towards the functional pad through the drive screw. The main reinforcement through the anchor plate passes through the tensioning through groove of the limiting plate and the hydraulic tensioning movable seat. The main reinforcement through the tensioning through groove can push the second wedge and the adaptive movable cover to squeeze the adaptive spring and move away from the hydraulic tensioning movable seat. At this time, the second wedge can open under the pushing action of the main reinforcement. The main reinforcement passes through the second wedge and the adaptive movable cover. Step 3: During prestressing tensioning, the hydraulic tensioning movable seat moves away from the functional pad. During the movement of the hydraulic tensioning movable seat, the second clamping piece continues to clamp, while the first clamping piece moves away from the conical groove holding the reinforcing bar groove and does not detach from the conical groove under the constraint of the limiting plate. At this time, the main reinforcing bar is prestressed. When the hydraulic tensioning movable seat returns to its original position, the prestressed pull of the main reinforcing bar in the first clamping piece drives the first clamping piece to insert into the conical groove, and the first clamping piece bites the main reinforcing bar. At this time, the connection between the second clamping piece and the conical groove becomes loose. Since the second clamping piece is in contact with the magnetic ring, when high-pressure gas is introduced into the first annular groove, the high-pressure gas pushes the adaptive movable cover away from the hydraulic tensioning movable seat. At this time, the adaptive movable cover can drive the second clamping piece away from the conical groove through the magnetic ring. At this time, when the hydraulic tensioning cylinder moves away from the centrifugal support plate through the drive screw, the second clamping piece will not bite the main reinforcing bar. The pole reinforcing cage that has been partially prestressed can be transferred to the concrete filling process and subsequent centrifugal molding under the holding action of the anchor plate and the first clamping piece. Step 4: After the concrete pole is filled with concrete and centrifugally shaped, first connect the pipeline of the hydraulic station to the shearing power interface, and send high-pressure hydraulic oil into the second annular groove. After the high-pressure hydraulic oil enters the second annular groove, it enters several second piston grooves to push the piston rod and the lower cutting blade to move towards the main reinforcement and auxiliary cutting blade positions, and shear the main reinforcement to complete the removal of excess main reinforcement and the disassembly of the anchor plate. Step 5: After connecting the hydraulic station's pipeline to the pressure-holding hydraulic interface, depressurize the hydraulic oil in the distribution groove, and keep the piston rod of the push plate moving slightly away from the pole. This releases the clamping force between the functional pad and the support collar, making it easier for the pole to be lifted out of the forming mold.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This device provides gap support between the functional pad and the support collar when the main reinforcement is prestressed by setting a retaining push plate with a loosening component on the functional pad. When the tensioning is completed, the gap is reduced to loosen the squeezing force between the functional pad and the support collar, which facilitates the removal of the pole from the forming mold later. With the cooperation of the adaptive movable cover, the second clamp of the tensioning component can be used without frequent manual intervention, which improves the convenience and efficiency of the tensioning operation. In addition, the shearing component can quickly shear the main reinforcement of the formed pole, which improves the processing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a side sectional view of the functional pad connection of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of part A; Figure 4For the present invention Figure 3 Schematic diagram of part B; Figure 5 For the present invention Figure 3 Schematic diagram of part C; Figure 6 This is a side sectional view of the positioning disk connection of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of part D; Figure 8 This is a schematic diagram of the disassembled structure of the positioning disc and the pole reinforcement cage of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of part E; Figure 10 This is a schematic diagram showing the connection and fit between the pole reinforcement cage and the anchor plate of the present invention; Figure 11 This is a schematic diagram illustrating the positional relationship between the push plate and the downward cutting blade in this invention.

[0016] In the diagram: 1. Molding mold; 2. Centrifugal support plate; 3. Support collar; 4. Pole rebar cage; 5. Main reinforcement bar; 6. Sealing pad; 7. Functional pad; 8. Distribution groove; 9. Pressure holding hydraulic interface; 10. Holding push plate; 11. Holding piston groove; 12. Holding piston rod; 13. Control pad; 14. Moving control seat; 15. Drive screw; 16. Hydraulic tension cylinder; 17. Hydraulic tension sleeve; 18. Hydraulic tension movable seat; 19. Limiting plate; 20. Anchoring plate; 21. Holding through bar groove; 22. First clamping piece. 22. Tensioning groove; 23. Second clamping piece; 24. Conical guide groove; 25. Adaptive movable cover; 27. Piston rod; 28. First piston groove; 29. ​​First annular groove; 30. Adaptive spring; 31. Magnetic ring; 32. Anchor head; 33. Arc-shaped gourd groove; 34. Positioning plate; 35. Second annular groove; 26. Shearing power interface; 37. Second piston groove; 38. Piston pressure rod; 39. Shearing groove; 40. Knife groove; 41. Downward cutting knife; 42. Auxiliary cutting knife; 43. Return spring; 44. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see the appendix Figure 1-11 This application provides the following technical solutions.

[0019] A partially prestressed reinforced concrete pole energy-saving preparation device includes a molding mold 1, on which three centrifugal support discs 2 are provided. Support rings 3 are provided at both ends of the molding mold 1. Positioning discs 35 and functional pads 7 are respectively inserted into the two support rings 3. A pole reinforcement cage 4 is inserted into the centrifugal support discs 2. The pole reinforcement cage 4 includes several main bars 5. The two ends of the main bars 5 are respectively inserted through the positioning discs 35 and functional pads 7. Several arc-shaped gourd grooves 34 are formed on the positioning discs 35. One end of each of the main bars 5 of the pole reinforcement cage 4 movably passes through the arc-shaped gourd grooves 34. Each end of the main bar 5 passing through the arc-shaped gourd grooves 34 has a pier head 33. The larger diameter side of the arc-shaped gourd groove 34 is larger than the diameter of the pier head 33. The smaller diameter side is smaller than the diameter of the pier head 33 but larger than the diameter of the main reinforcement 5. The supporting collar 3 with positioning plate 35 is bolted to a sealing plate. Concrete is filled from the center of positioning plate 35. After filling, it needs to be sealed by sealing plate. When the forming mold 1 rotates centrifugally, concrete leakage can be avoided. After the main reinforcement 5 with pier head 33 passes through the arc-shaped gourd groove 34, the positioning plate 35 is rotated, which can move the main reinforcement 5 to the narrow diameter side. At this time, when the main reinforcement 5 is prestressed, the main reinforcement 5 is constrained and positioned by the abutment action of pier head 33 and positioning plate 35. At the same time, the position of positioning plate 35 will affect the distribution position of main reinforcement 5. When positioning plate 35 is fixed, several main reinforcements 5 correspond to several tensioning through grooves 23 of hydraulic tensioning cylinder 16.

[0020] A tensioning assembly is set up to partially prestress the main reinforcement 5 of the pole reinforcement cage 4. A control pad 13 is horizontally provided on the side near the forming mold 1. The tensioning assembly includes a hydraulic tensioning cylinder 16 and an anchor plate 20. The hydraulic tensioning cylinder 16 is horizontally movably positioned above the control pad 13. The hydraulic tensioning cylinder 16 includes a hydraulic tensioning sleeve 17 and a hydraulic tensioning movable seat 18. Several second clamping pieces 24 and first clamping pieces 22 are respectively inserted into one side of the hydraulic tensioning movable seat 18 and the anchor plate 20. A movable control seat 14 is provided at the lower end of the hydraulic tensioning cylinder 16. A drive screw 15 is horizontally provided at the upper end of the control pad 13. The lower end of the movable control seat 14 is horizontally inserted into the control pad 13 through a guide rod and connected to the drive screw 15 through a screw thread sleeve. The hydraulic tensioning movable seat 18 is movably inserted into the center of the hydraulic tensioning sleeve 17. A limit plate 19 is fixedly provided on the side of the hydraulic tensioning sleeve 17 near the functional pad 7. The anchor plate 20 is provided at the limit plate 19. Between the positioning plate 19 and the functional pad 7, the anchoring plate 20 is provided with several retaining grooves 21. One end of the main reinforcing bar 5 passes through the functional pad 7 and passes through several retaining grooves 21. The hydraulic tensioning movable seat 18 is provided with several tensioning grooves 23. One end of the main reinforcing bar 5 passes through the retaining grooves 21 and passes through the tensioning grooves 23 of the limiting plate 19 and the hydraulic tensioning movable seat 18. The retaining grooves 21 and the tensioning grooves 23 are provided on the side away from the functional pad 7. The first clamping piece 22 is inserted into the conical groove of the holding through groove 21, and the second clamping piece 24 is inserted into the conical groove of the tensioning through groove 23. The first clamping piece 22 and the tensioning through groove 23 respectively clamp the main reinforcement 5. The limiting plate 19 is sleeved on the main reinforcement 5 and has a conical guide groove 25 on the side close to the anchor plate 20. The conical guide groove 25 can guide the main reinforcement 5 before it is inserted into the tensioning through groove 23, ensuring that the main reinforcement 5 can stably pass through the hydraulic tensioning cylinder 16.

[0021] The hydraulic tensioning movable seat 18 extends from the side away from the limiting plate 19, where the hydraulic tensioning sleeve 17 extends and is movably fitted with an adaptive movable cover 27. One end of the main rib 5 passes through the second clamping piece 24 and movably passes through the adaptive movable cover 27. Magnetic rings 32 are provided on the side of the adaptive movable cover 27 near the second clamping piece 24, and one side of the second clamping piece 24 contacts the magnetic rings 32. A first annular groove 30 is formed inside the hydraulic tensioning movable seat 18 on the side near the adaptive movable cover 27. A plurality of first piston grooves 29 are provided through one side of the adaptable cover 27. A plurality of piston rods 28 are provided on the side of the adaptable cover 27 near the first piston grooves 29. The plurality of piston rods 28 are respectively inserted into the first piston grooves 29 and fitted with adapting springs 31. Under the cooperation of the adaptable cover 27 and the adapting springs 31, the second clamping piece 24 is stably inserted into the conical groove. When the adaptable cover 27 moves away from the anchor plate 20, the second clamping piece 24 can be driven away from the conical groove under the action of the magnetic ring 32.

[0022] A loosening assembly is provided to loosen the functional pad 7 and positioning plate 35 of the tensioning and compression contact support ring 3, facilitating the disassembly of the formed concrete pole. The loosening assembly is located on the side of the functional pad 7 near the positioning plate 35. The loosening assembly includes a retaining push plate 10. A distribution groove 8 is formed on one side of the functional pad 7. Several retaining piston grooves 11 are formed through the distribution groove 8 on the side near the retaining push plate 10. Each retaining push plate 10 has a retaining piston rod 12 on the side near the retaining piston groove 11. The retaining piston rods 12 are movably inserted into the retaining piston grooves 11. The support sleeve... A sealing pad 6 is provided on the side of the ring 3 away from the functional pad 7. The main rib 5 moves through the sealing pad 6. One side of the retaining push plate 10 abuts against the sealing pad 6. The distribution groove 8 is provided with hydraulic oil greater than the tensioning pressure of the main rib 5 through a one-way valve. When the main rib 5 is tensioned by the anchor plate 20 and the hydraulic tensioning cylinder 16, the positioning plate 35 squeezes the side wall of the supporting ring 3. The functional pad 7 squeezes the side wall of the supporting ring 3 through the retaining push plate 10. When the retaining push plate 10 retracts, the squeezing force between the positioning plate 35 and the retaining push plate 10 and the supporting ring 3 is reduced. At this time, it is convenient to lift the pole out.

[0023] A shearing assembly is provided to directly shear the excess main ribs 5 after tensioning and forming. The shearing assembly is located inside the functional pad 7 and includes several downward cutting blades 42 and several auxiliary cutting blades 43. The downward cutting blades 42 and auxiliary cutting blades 43 are arranged in cooperation, and the main ribs 5 are located between the downward cutting blades 42 and the auxiliary cutting blades 43. A second annular groove 26 is provided on the side of the functional pad 7 away from the holding push plate 10. A shearing through groove 40 is provided on the side of the functional pad 7 that is fitted with the main ribs 5. A blade groove 41 is provided on the side of the functional pad 7 located at the shearing through groove 40. A second piston groove is provided in the functional pad 7 between the second annular groove 26 and the blade groove 41. 38. One side of the second piston groove 38 is connected to the second annular groove 26. The downward cutting blade 42 and the auxiliary cutting blade 43 are located on the upper and lower sides of the blade groove 41, respectively. A piston rod 39 is vertically and movably inserted into the second piston groove 38. The lower end of the piston rod 39 moves through the blade groove 41 and is connected to the upper end of the downward cutting blade 42. The lower end of the piston rod 39 in the second piston groove 38 is fitted with a return spring 44. A sealing ring can be set on the side of the shearing and rebar-piercing groove 40 near the holding push plate 10 to reduce concrete splashing into the shearing and rebar-piercing groove 40. The cooperation of the downward cutting blade 42 and the auxiliary cutting blade 43 can realize the rapid shearing of multiple main reinforcing bars 5, making the operation worry-free and convenient.

[0024] The functional pad 7 has an inner groove on one side of the distribution groove 8 and the second annular groove 26. The inner groove is connected to the distribution groove 8 and the second annular groove 26 respectively and has a pressure holding hydraulic interface 9 and a shearing power interface 37. A one-way valve is inserted into the pressure holding hydraulic interface 9. The upper end of the shearing power interface 37 is covered with a protective cover. The number and layout of the first clamping piece 22 and the second clamping piece 24 are determined by the number and layout design of the required prestressed tensioning main reinforcement 5.

[0025] A manufacturing process for an energy-saving device using partially prestressed reinforced concrete poles includes the following steps: Step 1: Fit a positioning plate 35 onto one end of the welded pole reinforcement cage 4 with a pier head 33. Fit a sealing pad 6 and a functional pad 7 onto the other end of the pole reinforcement cage 4 one by one. Then, put the pole reinforcement cage 4 together with the positioning plate 35, the sealing pad 6 and the functional pad 7 into the forming mold 1, and fix the position of the main reinforcement 5 by bolting the positioning plate 35 to the support collar 3. Step 2: Connect the anchor plate 20 to one end of the main reinforcement 5 that passes through the functional pad 7, and insert the first clamping piece 22 according to the required number and layout of the main reinforcement 5 for prestressing tensioning. Then, push the hydraulic tensioning cylinder 16 towards the functional pad 7 through the drive screw 15. The main reinforcement 5 that passes through the anchor plate 20 passes through the tensioning through groove 23 of the limiting plate 19 and the hydraulic tensioning movable seat 18. The main reinforcement 5 that passes through the tensioning through groove 23 can push the second clamping piece 24 and the adaptive movable cover 27 to squeeze the adaptive spring 31 and move away from the hydraulic tensioning movable seat 18. At this time, the second clamping piece 24 can open under the pushing action of the main reinforcement 5. The main reinforcement 5 passes through the second clamping piece 24 and the adaptive movable cover 27. Step 3: During prestressing tensioning, the hydraulic tensioning movable seat 18 moves away from the functional pad seat 7. During the movement of the hydraulic tensioning movable seat 18, the second clamping piece 24 remains clamped, while the first clamping piece 22 moves away from the conical groove holding the reinforcing bar groove 21 and does not detach from the conical groove under the constraint of the limiting plate 19. At this time, the main reinforcing bar 5 is prestressed. When the hydraulic tensioning movable seat 18 returns to its original position, the prestressed pull of the main reinforcing bar 5 within the first clamping piece 22 causes the first clamping piece 22 to insert into the conical groove, where it grips the main reinforcing bar 5. At this time, the connection between the second clamping piece 24 and the conical groove... When the connection becomes loose, since the second clamp 24 is in contact with the magnetic ring 32, when high-pressure gas is introduced into the first annular groove 30, the high-pressure gas pushes the adaptive movable cover 27 away from the hydraulic tensioning movable seat 18. At this time, the adaptive movable cover 27 can drive the second clamp 24 away from the conical groove through the magnetic ring 32. At this time, when the hydraulic tensioning cylinder 16 drives the screw 15 away from the centrifugal support plate 2, the second clamp 24 will not bite the main reinforcement 5. The pole reinforcement cage 4, which is partially prestressed, can be transferred to the concrete filling process and the subsequent centrifugal molding process under the holding action of the anchor plate 20 and the first clamp 22. Step 4: After the concrete pole is filled with concrete and centrifugally shaped, first connect the pipeline of the hydraulic station to the shearing power interface 37, and send high-pressure hydraulic oil into the second annular groove 26. After entering the second annular groove 26, the high-pressure hydraulic oil enters several second piston grooves 38 respectively, pushing the piston rod 39 and the downward cutting blade 42 to move towards the main reinforcement 5 and the auxiliary cutting blade 43, and shearing the main reinforcement 5 to complete the removal of excess main reinforcement 5 and the disassembly of anchor plate 20. Step 5: After connecting the hydraulic station pipeline to the pressure-holding hydraulic interface 9, depressurize the hydraulic oil in the distribution groove 8, and keep the holding piston rod 12 of the push plate 10 moving slightly away from the pole, thereby releasing the clamping force between the functional pad 7 and the support collar 3, making it easier for the pole to be lifted out of the forming mold 1.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preparing partially prestressed reinforced concrete poles for energy conservation, characterized in that, include: A molding die (1) is provided with three centrifugal support discs (2). Both ends of the molding die (1) are provided with support collars (3). Positioning discs (35) and functional pads (7) are respectively inserted into the two support collars (3). A pole reinforcement cage (4) is inserted into the centrifugal support discs (2). The pole reinforcement cage (4) includes several main bars (5). The two ends of the several main bars (5) are respectively inserted through the positioning discs (35) and functional pads (7). The tensioning assembly has a control pad (13) horizontally positioned on one side near the forming mold (1). The tensioning assembly includes a hydraulic tensioning cylinder (16) and an anchor plate (20). The hydraulic tensioning cylinder (16) is horizontally movably positioned above the control pad (13). The hydraulic tensioning cylinder (16) includes a hydraulic tensioning sleeve (17) and a hydraulic tensioning movable seat (18). A plurality of second clamping pieces (24) and first clamping pieces (22) are respectively inserted into one side of the hydraulic tensioning movable seat (18) and the anchor plate (20). The release assembly is located on the side of the functional pad (7) near the positioning plate (35), and the release assembly includes a retaining push plate (10). The shearing assembly is located inside the functional pad (7). The shearing assembly includes several downward cutting blades (42) and several auxiliary cutting blades (43). The downward cutting blades (42) and the auxiliary cutting blades (43) are arranged in cooperation, and the main rib (5) is located between the downward cutting blades (42) and the auxiliary cutting blades (43).

2. The energy-saving fabrication device for partially prestressed reinforced concrete poles according to claim 1, characterized in that: The positioning plate (35) is provided with several arc-shaped gourd grooves (34). One end of several main bars (5) of the pole reinforcement cage (4) is movably inserted through several arc-shaped gourd grooves (34). The end of the main bar (5) that passes through the arc-shaped gourd groove (34) is provided with a pier (33). The large diameter side of the arc-shaped gourd groove (34) is larger than the diameter of the pier (33). The small diameter side of the arc-shaped gourd groove (34) is smaller than the diameter of the pier (33) and larger than the diameter of the main bar (5). A sealing plate is provided on one side of the support collar (3) of the positioning plate (35) by bolt insertion.

3. The energy-saving fabrication device for partially prestressed reinforced concrete poles according to claim 2, characterized in that: The functional pad (7) has a distribution groove (8) on one side. Several retaining piston grooves (11) are provided through the distribution groove (8) on the side near the retaining push plate (10). The retaining push plate (10) is provided with retaining piston rods (12) on the side near the retaining piston grooves (11). Several retaining piston rods (12) are respectively movably inserted into the retaining piston grooves (11). The supporting collar (3) is provided with a sealing pad (6) on the side away from the functional pad (7). The main rib (5) movably passes through the sealing pad (6). One side of the retaining push plate (10) abuts against the sealing pad (6).

4. The energy-saving fabrication device for partially prestressed reinforced concrete poles according to claim 3, characterized in that: The lower end of the hydraulic tensioning cylinder (16) is provided with a movable control seat (14), and the upper end of the control pad (13) is provided with a drive screw (15). The lower end of the movable control seat (14) is horizontally inserted into the control pad (13) through a guide rod and connected to the drive screw (15) through a screw thread sleeve. The hydraulic tensioning movable seat (18) is movably inserted into the center of the hydraulic tensioning sleeve (17). The hydraulic tensioning sleeve (17) is fixedly provided with a limiting plate (19) on the side near the functional pad (7). The anchoring plate (20) is located between the limiting plate (19) and the functional pad (7).

5. The energy-saving fabrication device for partially prestressed reinforced concrete poles according to claim 4, characterized in that: The anchor plate (20) is provided with several retaining grooves (21). One end of the main reinforcement (5) passes through the functional pad (7) and passes through several retaining grooves (21). The hydraulic tensioning movable seat (18) is provided with several tensioning grooves (23). One end of the main reinforcement (5) passes through the retaining grooves (21) and passes through the limiting plate (19) and the tensioning grooves (23) of the hydraulic tensioning movable seat (18). The retaining grooves (21) and the tensioning grooves (23) are provided. A conical groove is provided on the side of the reinforcing bar groove (23) away from the functional pad (7). The first clamping piece (22) is inserted into the conical groove of the retaining reinforcing bar groove (21), and the second clamping piece (24) is inserted into the conical groove of the tensioning reinforcing bar groove (23). The first clamping piece (22) and the tensioning reinforcing bar groove (23) respectively clamp the main reinforcing bar (5). The limiting plate (19) is sleeved on the main reinforcing bar (5) and a conical guide groove (25) is provided on the side close to the anchor plate (20).

6. The energy-saving fabrication device for partially prestressed reinforced concrete poles according to claim 5, characterized in that: The hydraulic tensioning movable seat (18) extends out of the hydraulic tensioning sleeve (17) on the side away from the limiting plate (19) and is movably fitted with an adaptive movable cover (27). The main rib (5) passes through the second clamp (24) and is movably fitted through the adaptive movable cover (27). The adaptive movable cover (27) is provided with a magnetic ring (32) on the side of the second clamp (24) and the side of the second clamp (24) is in contact with the magnetic ring (32).

7. The energy-saving fabrication device for partially prestressed reinforced concrete poles according to claim 6, characterized in that: The hydraulic tensioning movable seat (18) has a first annular groove (30) on the side near the adaptive movable cover (27). The first annular groove (30) has several first piston grooves (29) through it on the side near the adaptive movable cover (27). The adaptive movable cover (27) has several piston rods (28) on the side near the first piston grooves (29). The several piston rods (28) are respectively inserted into the first piston grooves (29) and fitted with adaptive springs (31).

8. The energy-saving fabrication device for partially prestressed reinforced concrete poles according to claim 7, characterized in that: The functional pad (7) has a second annular groove (26) on the side away from the retaining push plate (10). The functional pad (7) has a shearing groove (40) on the side where it is connected to the main rib (5). The functional pad (7) has a knife groove (41) connected to the side of the shearing groove (40). The functional pad (7) has a second piston groove (38) between the second annular groove (26) and the knife groove (41). One side of the second piston groove (38) is connected to the second annular groove (26). The lower cutter (42) and the auxiliary cutter (43) are located on the upper and lower sides of the knife groove (41) respectively. The piston rod (39) is vertically and movably inserted into the second piston groove (38). The lower end of the piston rod (39) movably passes through the knife groove (41) and is connected to the upper end of the lower cutter (42). The lower end of the piston rod (39) is sleeved with a return spring (44) in the second piston groove (38).

9. The energy-saving fabrication device for partially prestressed reinforced concrete poles according to claim 8, characterized in that: The functional pad (7) is provided with an inner groove on one side of the distribution groove (8) and the second annular groove (26). The inner groove is connected to the distribution groove (8) and the second annular groove (26) respectively and is provided with a pressure holding hydraulic interface (9) and a shearing power interface (37). A one-way valve is inserted into the pressure holding hydraulic interface (9), and a protective cover is provided on the upper end of the shearing power interface (37).

10. A manufacturing process for an energy-saving device for partially prestressed reinforced concrete poles as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Connect the positioning plate (35) to one end of the welded pole reinforcement cage (4) with the pier head (33), and connect the sealing pad (6) and functional pad (7) to the other end of the pole reinforcement cage (4) one by one. Then, put the pole reinforcement cage (4) together with the positioning plate (35), the sealing pad (6) and the functional pad (7) into the forming mold (1), and fix the main reinforcement (5) by the bolts of the positioning plate (35) and the support collar (3). Step 2: Connect the anchor plate (20) to one end of the main reinforcement (5) that passes through the functional pad (7) and insert the first clamping piece (22) according to the number and layout of the main reinforcement (5) for prestressing tensioning. Then, push the hydraulic tensioning cylinder (16) towards the functional pad (7) through the drive screw (15). The main reinforcement (5) that passes through the anchor plate (20) passes through the tensioning through groove (23) of the limiting plate (19) and the hydraulic tensioning movable seat (18). The main reinforcement (5) that passes through the tensioning through groove (23) can push the second clamping piece (24) and the adaptive movable cover (27) to squeeze the adaptive spring (31) and move away from the hydraulic tensioning movable seat (18). At this time, the second clamping piece (24) can open under the pushing action of the main reinforcement (5). The main reinforcement (5) passes through the second clamping piece (24) and the adaptive movable cover (27). Step 3: During prestressing tensioning, the hydraulic tensioning movable seat (18) moves away from the functional pad (7). The second clamp (24) continues to clamp during the movement of the hydraulic tensioning movable seat (18), while the first clamp (22) moves away from the conical groove of the retaining groove (21) and does not detach from the conical groove under the constraint of the limiting plate (19). At this time, the main reinforcement (5) is prestressed. When the hydraulic tensioning movable seat (18) returns to its original position, the prestressed pull of the main reinforcement (5) in the first clamp (22) causes the first clamp (22) to insert into the conical groove. The first clamp (22) bites the main reinforcement (5). At this time, the connection between the second clamp (24) and the conical groove is... When loosening occurs, the second clamp (24) contacts the magnetic ring (32). When high-pressure gas is introduced into the first annular groove (30), the high-pressure gas pushes the adaptive active cover (27) away from the hydraulic tensioning active seat (18). At this time, the adaptive active cover (27) can drive the second clamp (24) away from the conical groove through the magnetic ring (32). At this time, when the hydraulic tensioning cylinder (16) moves away from the centrifugal support plate (2) through the drive screw (15), the second clamp (24) will not bite the main reinforcement (5). The pole reinforcement cage (4) that is partially prestressed can be transferred to the concrete filling process and the subsequent centrifugal molding process under the holding action of the anchor plate (20) and the first clamp (22). Step 4: After the concrete pole is filled with concrete and centrifugally shaped, first connect the pipeline of the hydraulic station to the shearing power interface (37), and send high-pressure hydraulic oil into the second annular groove (26). After the high-pressure hydraulic oil enters the second annular groove (26), it enters several second piston grooves (38) to push the piston rod (39) and the lower cutter (42) to move towards the main reinforcement (5) and the auxiliary cutter (43) to shear the main reinforcement (5) and complete the removal of excess main reinforcement (5) and the disassembly of anchor plate (20); Step 5: After connecting the hydraulic station pipeline to the pressure-holding hydraulic interface (9), the hydraulic oil in the distribution groove (8) is depressurized, and the holding piston rod (12) of the push plate (10) is slightly moved away from the pole, thereby releasing the clamping force between the functional pad (7) and the support ring (3), so that the pole can be lifted out of the forming mold (1).

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