A steel mould material distributing device for pole production

Abstract

This invention relates to the field of cement pole production equipment, and discloses a steel mold material distribution device for pole production, including a vehicle body. A receiving assembly and a feeding assembly are mounted on the vehicle body. The feeding assembly is installed below the receiving assembly. The receiving assembly includes a receiving hopper, and two discharge ports are arranged side-by-side at the bottom of the hopper. A feeding assembly is correspondingly arranged below each discharge port, and a vibrating assembly is provided at the discharge port of the feeding assembly. The two parallel feeding assemblies and their independently telescopic rotating shafts enable simultaneous material distribution and length adjustment of the two steel molds, improving material distribution efficiency. The guiding action of the conical spring ensures a uniform distribution of concrete from both sides to the center within the steel mold. Combined with the following vibration, where the vibrating ball automatically rises with the material surface under buoyancy and spring synergy, air bubbles and voids are eliminated at the source, improving the density of the pole.

Description

Technical Field

[0001] This invention relates to the field of cement pole production equipment technology, specifically a steel mold material placement device for pole production. Background Technology

[0002] In the industrial production of cement poles, the steel mold concrete placement device is one of the core pieces of equipment determining the pole forming quality and production efficiency. Currently, the widely used concrete placement devices in the industry typically include a support frame and a receiving and feeding device fixed on the support frame. The receiving device consists of a receiving tray, a mixing arm, a rotating shaft, and a receiving motor, while the feeding device includes an inlet channel, a feeding auger, a discharge port, and a feeding motor. During operation, the concrete is mixed and fed into the receiving tray, where it remains fluid due to the continuous agitation of the mixing arm. It then enters the feeding auger through the inlet channel and is continuously discharged from the discharge port under the rotational pushing of the feeding auger, finally falling into the steel mold below to complete the placement. To adapt to the production needs of poles of different specifications, some concrete placement devices are also equipped with a traveling track and a traveling device, enabling the equipment to move between multiple steel mold stations for placement.

[0003] However, the existing concrete placement devices still have significant technical defects in actual production. Taking the production of ring-shaped concrete poles as an example, the steel mold is a semi-circular shell structure with an arc-shaped cross-section, narrow at the bottom and gradually rising on both sides. After the concrete is continuously discharged from the outlet, it almost all falls towards the longitudinal centerline area at the bottom of the steel mold under the action of gravity, while the flanges on both sides of the steel mold cannot obtain sufficient concrete. This method of placement, which is concentrated in the central area, results in an uneven accumulation of concrete in the steel mold, with the middle being high and the sides being low. During the subsequent centrifugal molding process, when the concrete in the central area spreads to both sides under the action of centrifugal force, it is very easy to trap air, resulting in honeycomb-like voids and air pore defects inside the finished pole. Although some existing solutions improve the compaction by adding a vibration platform at the bottom of the steel mold or by inserting a vibrator during the placement process, this method is a remedial vibration after the placement is completed. It not only increases the additional process and equipment energy consumption, but also makes it difficult to completely eliminate the local accumulation and trapped air. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a steel mold material placement device for pole production. This device solves the problem that the discharge method of existing steel mold material placement devices causes concrete to accumulate in the central area of ​​the bottom of the semi-circular shell-shaped steel mold, forming an uneven material state with "high in the middle and low on both sides." This accumulated material is prone to trapping air and forming honeycomb voids during the subsequent centrifugal molding process. Existing remedial vibration cannot simultaneously complete the follow-up guidance and active compaction at the moment of material placement, making it difficult to eliminate this molding defect from the source.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel mold material distribution device for pole production, comprising a vehicle body, on which a receiving assembly and a feeding assembly are mounted. The feeding assembly is installed below the receiving assembly. The receiving assembly includes a receiving hopper, and two discharge ports are arranged side by side at the bottom of the receiving hopper. A feeding assembly is correspondingly arranged below each discharge port. A vibrating assembly is provided at the discharge port of the feeding assembly. The vibrating assembly includes a vibrating ball and a conical spring. The vibrating ball is suspended below the discharge port by the conical spring. An electromagnet is provided at the discharge port, and a magnet is provided inside the vibrating ball.

[0006] Preferably, the discharge port has a funnel-shaped structure, and a stirring shaft is respectively provided at the center of each discharge port. Each stirring shaft is provided with a pulley at its upper end, and the two pulleys are connected by belt drive. The upper end of one of the stirring shafts is fixedly connected to the output shaft of a first motor, which is mounted on the upper surface of the receiving hopper through a mounting plate.

[0007] Preferably, each of the stirring shafts is provided with stirring blades, the stirring blades are located inside the receiving hopper, and the lower end of each stirring shaft passes through the corresponding discharge port and extends to the outlet end of the discharge port.

[0008] Preferably, the feeding assembly includes a housing and a telescopic shaft. The telescopic shaft is coaxially disposed inside the housing. One end of the housing is a fixed end, and the other end of the housing is a telescopic end. One end of the telescopic shaft is connected to the fixed end, and the other end of the telescopic shaft passes through the telescopic end and extends to the outside of the housing. The telescopic end of the housing has the discharge port.

[0009] Preferably, the telescopic shaft is a multi-sleeve structure, which is formed by several sleeves slidingly connected in sequence. Adjacent sleeves are connected by spline fit, and a sealing ring is provided at the spline fit surface of adjacent sleeves. A spiral cutter is provided on the outer wall of each sleeve.

[0010] Preferably, a second motor is provided on the outside of the fixed end of the housing, and the output shaft of the second motor is connected to the fixed end of the telescopic shaft through a reducer. The fixed end of the housing is also provided with a hydraulic supply component, which is connected to the hydraulic cavity inside the telescopic shaft through a hose.

[0011] Preferably, the end of the telescopic shaft extending outside the housing is fixedly connected to the gear ring of the planetary gear set, the outer shell of the planetary gear set is rotatably supported on the outer end face of the telescopic end of the housing via bearings, and the planet carrier of the planetary gear set is fixedly disposed inside the outer shell.

[0012] Preferably, the vibrating assembly further includes a flexible steel wire shaft and a flexible shell. The flexible shell is sleeved on the outside of the flexible steel wire shaft. One end of the flexible shell is fixed to the outer wall of the planetary gear set, and the other end of the flexible shell is fixed to the shell of the vibrating ball. One end of the flexible steel wire shaft is fixedly connected to the sun gear of the planetary gear set, and the other end of the flexible steel wire shaft passes through the wall of the shell and extends into the interior of the shell.

[0013] Preferably, the vibrating ball includes a spherical shell and an eccentric shaft. The spherical shell is a sealed hollow shell, and the spherical shell is in the shape of an inverted gourd. The diameter of the upper sphere of the spherical shell is larger than the diameter of the lower sphere of the spherical shell. The eccentric shaft is rotatably disposed at the internal axis of the spherical shell. An eccentric block is fixedly disposed on the eccentric shaft. One end of the flexible steel wire shaft extending into the interior of the spherical shell is fixedly connected to the eccentric shaft. The magnet is embedded in the top of the inner wall of the upper sphere of the spherical shell.

[0014] Preferably, two conical springs are provided, symmetrically arranged on both sides of the vibrating ball, with the tip of each conical spring facing downwards. The upper end of each conical spring is fixed to the outer wall of the discharge port, and the lower end of each conical spring is fixed to the upper part of the vibrating ball. The electromagnet is fixedly arranged on the outer wall of the discharge port, and the electromagnet and the magnet are arranged vertically in correspondence.

[0015] This invention provides a steel mold material placement device for pole production. It has the following beneficial effects: First, this application achieves simultaneous material feeding for two parallel steel molds by setting up two parallel discharge ports and correspondingly configured two feeding components. Since each feeding component is equipped with an independently controlled hydraulic supply component and a telescopic shaft, and each telescopic shaft, under the splined engagement of a multi-sleeve structure, transmits torque and extends and retracts synchronously through the engagement of key blocks and keyways at each stage of the sleeve 321. This allows the length of each feeding component to be independently adjusted according to the position of the corresponding steel mold, thus ensuring that the two discharge ports are accurately positioned above their respective steel molds. Compared to single-channel sequential material feeding, this dual-channel independently telescopic material feeding method can complete twice the material feeding in the same amount of time. Furthermore, the length adjustments of each channel do not interfere with each other, adapting to the parallel arrangement requirements of steel molds with different spacings, thereby effectively improving the material feeding efficiency per unit time.

[0016] Secondly, this application utilizes a structure with a conical spring connecting the discharge port and the vibrating ball. This allows the concrete discharged from the discharge port to be guided by the conical wall of the spring. Part of the concrete passes through the spring gaps and falls into the areas on both sides of the steel mold, while the other part slides along the inner wall of the spring to the upper shell surface of the vibrating ball and then slides outwards along the spherical surface. This ensures that the concrete forms a uniform distribution from both sides towards the center upon entering the steel mold, avoiding the uneven material state of "high in the middle and low on both sides" caused by the concentrated accumulation of concrete at the bottom center of the steel mold in traditional discharge methods. Simultaneously, because the vibrating ball is suspended directly below the discharge port and extends into the steel mold via the conical spring, the high-frequency vibration generated by the eccentric shaft drive the shell to vibrate the concrete in real time while it is being distributed. Furthermore, the sealed hollow structure of the shell provides buoyancy after immersion in the concrete. As the material level inside the steel mold rises, the shell automatically rises with the material level under the combined action of buoyancy and the elasticity of the conical spring, always maintaining immediate vibration of the newly filled concrete layer. The overlap of concrete placement and vibration in time and space ensures that the concrete is compacted the instant it is placed into the steel mold, and air bubbles are expelled before the concrete loses its fluidity. Compared with the traditional step-by-step operation mode of placing concrete first and then vibrating, this structure eliminates the conditions for residual air bubbles and void formation from the source, thereby improving the density and structural uniformity of the finished pole.

[0017] Third, this application utilizes a multi-sleeve structure of the telescopic shaft in conjunction with a hydraulic supply component to make the positions of the discharge port and vibrating balls in the radial direction of the steel mold adjustable. Since each sleeve 321 transmits torque through a spline connection while allowing axial relative sliding, when the hydraulic supply component supplies or withdraws hydraulic oil into the telescopic shaft, each sleeve 321 extends or retracts synchronously, causing the telescopic end of the sleeve and the discharge port fixed thereon to move radially along the steel mold. Consequently, the vibrating balls installed below the discharge port change position in the width direction of the steel mold. This structure allows the vibrating balls to perform zoned vibration of the bottom center area, transition area, and sidewall area of ​​the steel mold during the material distribution process, avoiding the problem of significant differences in vibration effect across different areas of the steel mold cross-section caused by vibration at a single location, thereby improving the uniformity of concrete density across the entire cross-section of the steel mold.

[0018] Fourth, in terms of energy conservation and environmental protection, this application couples the power source of the vibrating assembly and the power source of the feeding assembly to the same second motor. Specifically, the telescopic shaft inputs through the gear ring of the planetary gear set and outputs through the sun gear to drive the eccentric shaft to rotate via the flexible steel wire shaft. This allows the feeding and vibration operations to share a single motor drive, eliminating the need for a separate drive motor for the vibrating assembly and reducing the total installed power and power consumption of the entire machine. Simultaneously, since the opening and closing of the discharge port is achieved through the attraction and cooperation between the electromagnet and the magnet inside the vibrating ball, the electromagnet is de-energized during the material distribution process, causing the vibrating ball to descend and open the discharge port under the elastic force of the conical spring. During this stage, the electromagnet does not consume electrical energy. It is only energized after cleaning to raise the vibrating ball and block the discharge port. The energization time of the electromagnet accounts for a very small proportion of the entire working cycle, further reducing the energy consumption of the equipment. Furthermore, the device uses a continuous path from the receiving hopper and feeding assembly to the discharge port. During cleaning, only clean water needs to be injected into the receiving hopper to complete the cleaning of the entire path from the receiving hopper to the vibrating ball. No parts need to be disassembled, which reduces the amount of water used for cleaning and the cleaning time, and reduces the amount of wastewater discharged. This meets the green and environmentally friendly requirements of energy-saving building material production equipment. Attached Figure Description

[0019] Figure 1 The three-dimensional representation of the present invention Figure 1 ; Figure 2 The three-dimensional representation of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the receiving assembly of the present invention; Figure 4 This is a schematic diagram of the feeding assembly and the vibrating assembly of the present invention; Figure 5 This is a schematic cross-sectional view of the feeding assembly of the present invention; Figure 6 This is a schematic diagram of the telescopic pivot of the present invention; Figure 7 for Figure 5 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 This is a schematic diagram of the planetary gear set of the present invention; Figure 9 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0020] 1. Car body; 2. Receiving assembly; 21. Receiving hopper; 22. Discharge port; 23. Agitator shaft; 24. Pulley; 25. Belt; 26. First motor; 27. Mounting plate; 28. Agitator blades; 3. Feeding assembly; 31. Shell; 311. Fixed end; 312. Telescopic end; 32. Telescopic shaft; 321. Sleeve; 33. Spiral cutter; 34. Second motor; 35. Discharge port; 36. Hydraulic supply component; 37. Hose; 38. Planetary gear set; 381. Gear ring; 382. Shell; 383. Planetary carrier; 384. Sun gear; 4. Vibrating assembly; 41. Vibrating ball; 411. Spherical shell; 412. Eccentric shaft; 42. Conical spring; 43. Electromagnet; 44. Magnet; 45. Flexible steel wire shaft; 46. Flexible shell. Detailed Implementation

[0021] The technical solutions in 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.

[0022] Please see the appendix Figure 1 Appendix Figure 2 This invention provides a steel mold material distribution device for pole production, including a vehicle body 1, a receiving component 2 installed on the vehicle body 1, and a feeding component 3 installed below the receiving component 2. A vibrating component 4 is provided at the discharge port 35 of the feeding component 3.

[0023] The bottom of the vehicle body 1 is equipped with traveling wheels, which cooperate with the traveling track laid on the ground. The vehicle body 1 is equipped with a traveling drive motor, which is used to drive the vehicle body 1 to move back and forth along the axial direction of the steel mold.

[0024] Please see the appendix Figure 3The receiving assembly 2 includes a receiving hopper 21, which is a funnel-shaped container that is wider at the top and narrower at the bottom. The top is an open receiving port, and the bottom is closed. Two discharge ports 22 are arranged side-by-side at the bottom of the receiving hopper 21, corresponding to two parallel cement pole steel molds. Each discharge port 22 is funnel-shaped with a circular opening at its lower end to guide the concrete downwards. Inside the receiving hopper 21 are two mixing shafts 23, which pass through the center of each discharge port 22 and extend downwards to the lower opening of each discharge port 22. Each mixing shaft 23 is equipped with mixing blades 28, which are located inside the receiving hopper 21 and used to mix the concrete within the hopper 21. A pulley 24 is provided at the upper end of each of the two mixing shafts 23, and the two pulleys 24 are connected by a belt 25. The upper end of one of the mixing shafts 23 is fixedly connected to the output shaft of the first motor 26. A T-shaped mounting plate 27 is provided on the upper surface of the receiving hopper 21. The two mixing shafts 23 are mounted on the T-shaped mounting plate 27 through bearings. The first motor 26 is located on the upper surface of the mounting plate 27, while the belt 25 is located on the lower surface of the T-shaped mounting plate 27 to prevent concrete from spilling onto the belt 25 when it is poured into the receiving hopper. When the first motor 26 is started, it drives the mixing shaft 23 directly connected to it to rotate, and drives the other mixing shaft 23 to rotate synchronously through the belt 25, thereby continuously mixing the concrete in the receiving hopper 21 and preventing the concrete from solidifying or segregating in the receiving hopper 21. At the same time, the mixing blades 28 push the concrete to the lower feed port 22 during rotation.

[0025] Please see the appendix Figure 4 - Appendix Figure 9There are two feeding components 3, which are respectively installed below the two discharge ports 22. Each feeding component 3 includes a housing 31, which is a cylindrical shell. The upper side wall of its fixed end 311 is provided with a feed port that is connected to the lower opening of the discharge port 22. The axial direction of the housing 31 is perpendicular to the axial direction of the cement pole steel mold. Each housing 31 has a fixed end 311 at one end and a telescopic end 312 at the other end. A telescopic shaft 32 is coaxially mounted inside each housing 31. The telescopic shaft 32 is a multi-segment sleeve structure, formed by several sleeves 321 with progressively decreasing diameters slidingly connected. Adjacent sleeves 321 are connected by a spline joint to achieve sliding extension and torque transmission. A high-pressure sealing ring is provided at the spline mating surface. A spiral cutter 33 is installed on the outer wall of each sleeve 321, with all spiral cutters 33 having the same spiral direction. When the telescopic shaft 32 extends or retracts, the spacing between the spiral cutters 33 increases or decreases accordingly, forming a complete and continuous spiral conveying surface. A hydraulic supply component 36 is provided at the fixed end 311 of the housing 31, and the hydraulic supply component 36 is connected to the hydraulic cavity inside the telescopic shaft 32 via a high-pressure hose 37. When the hydraulic supply component 36 supplies hydraulic oil into the telescopic shaft 32, each sleeve 321 of the telescopic shaft 32 extends outward under hydraulic pressure, pushing the telescopic end 312 of the housing 31 to extend outward synchronously. When the hydraulic supply component 36 withdraws the hydraulic oil, each sleeve 321 of the telescopic shaft 32 retracts inward, causing the telescopic end 312 of the housing 31 to retract synchronously. Since one end of the telescopic shaft 32 is fixed to the fixed end 311 of the housing 31 via the second motor 34, and the other end is connected to the telescopic end 312 of the housing 31 via the gear ring 381 of the planetary gear set 38, the extension and retraction of the telescopic shaft 32 directly drives the telescopic end 312 of the housing 31 to move accordingly, thereby realizing the extension and retraction adjustment of the entire feeding assembly 3.

[0026] Please see the appendix Figure 6Specifically, the telescopic shaft 32 is formed by sequentially sliding and connecting several sleeves 321 with progressively decreasing diameters. The sleeve with the largest diameter is defined as the first sleeve 321, the next largest as the second sleeve 321, and so on, with the smallest diameter being the final sleeve 321. Each sleeve 321 is a cylindrical structure, and its axial length is adapted to the telescopic stroke of the housing 31. Multiple key blocks are provided on the outer wall of each sleeve 321 along the axial direction. These key blocks are arranged in a ring at equal intervals around the outer wall of the sleeve 321. Each key block is an elongated strip-shaped protrusion extending axially, with a rectangular or trapezoidal cross-section. Multiple keyways are formed on the inner wall of adjacent larger-diameter sleeves 321 along the axial direction. These keyways are arranged in a ring at equal intervals around the inner wall, with the number of keyways equal to the number of key blocks, and the positions of the keyways in the circumferential direction corresponding one-to-one with the key blocks. When the small-diameter sleeve 321 is fitted inside the large-diameter sleeve 321, the key block on the outer wall of the small-diameter sleeve 321 slides into the keyway on the inner wall of the large-diameter sleeve 321 to form a spline fit. This spline fit constrains the small-diameter sleeve 321 relative to the large-diameter sleeve 321 in the circumferential direction, allowing only relative axial sliding and preventing relative circumferential rotation. At the same time, this fit transmits the rotational torque of the large-diameter sleeve 321 to the small-diameter sleeve 321, achieving synchronous rotation of each stage of the sleeve 321.

[0027] A limiting groove is also provided on the top surface of each key block. The limiting groove extends along the axial direction of the key block and has a rectangular or T-shaped cross-section. A spiral auger 33 is fixedly provided on the outer wall of each sleeve 321. Each spiral auger 33 is spiral blade-shaped, and its inner wall contour matches the outer wall contour of the corresponding sleeve 321. Multiple sliding feet are provided on the inner wall of each spiral auger 33. The multiple sliding feet are arranged in a ring at equal intervals along the circumference of the inner wall of the spiral auger 33. The number of sliding feet is equal to the number of limiting grooves, and the position of each sliding foot in the circumferential direction corresponds one-to-one with each limiting groove. Each sliding foot extends inward from the inner wall of the spiral auger 33 and enters the interior of the limiting groove, so that the spiral auger 33 can slide axially relative to the sleeve 321 but cannot rotate circumferentially relative to the sleeve 321. In each section of the spiral auger 33, one of the sliding feet is fixedly disposed inside the limiting groove. This fixed sliding foot is located at the end of the sleeve 321 closest to the next smaller diameter sleeve 321, i.e., at the axial end of the spiral auger 33. The remaining sliding feet are slidably disposed inside the limiting groove and can slide freely along the axial direction of the limiting groove. When the sleeve 321 extends axially, the fixed sliding foot moves outward with the end of the sleeve 321, causing the entire spiral auger 33 to move outward synchronously, while the remaining sliding feet slide relative to each other within the limiting groove. When the sleeve 321 retracts axially, the fixed sliding foot moves inward with the end of the sleeve 321, causing the entire spiral auger 33 to retract inward synchronously, while the remaining sliding feet slide relative to each other in the opposite direction within the limiting groove. A sealing ring is also provided in each section of the sleeve 321.

[0028] The hydraulic supply component 36 is connected to the hydraulic cavity formed by the innermost first-stage sleeve 321 of the telescopic shaft 32 via the hose 37. When the hydraulic supply component 36 supplies hydraulic oil into the hydraulic cavity, the pressure of the hydraulic oil acts on the end face of each stage of the sleeve 321, pushing each stage of the sleeve 321 to extend outward relative to the adjacent larger diameter sleeve 321. Since the fixed sliding foot of each stage of the sleeve 321 is located at the end of its respective sleeve 321, each stage of the spiral cutter 33 extends synchronously with its respective sleeve 321. When the hydraulic supply component 36 withdraws hydraulic oil from the hydraulic cavity, the pressure in the hydraulic cavity decreases, and each stage of the sleeve 321 retracts inward under the action of external pressure. Each stage of the reamer retracts synchronously with its respective sleeve 321.

[0029] Each section of the spiral cutter 33 has the same spiral direction and the same pitch. When the telescopic shaft 32 is at any extended length, the spiral cutters 33 are arranged end-to-end in the axial direction, with the gap between two adjacent spiral cutters 33 being smaller than the pitch of the spiral cutters 33, thus forming a continuous and complete spiral conveying surface along the entire length of the telescopic shaft 32. When the second motor 34 drives the telescopic shaft 32 to rotate, each sleeve 321 rotates synchronously through a spline connection, and each spiral cutter 33 rotates synchronously with its respective sleeve 321, jointly pushing the concrete falling from the inlet along the axial direction of the casing 31 to the outlet 35. Because the pitch of each cutter is the same and the phase is continuous, the concrete will not accumulate or stop flowing when transitioning between the cutters.

[0030] When the length of the feeding assembly 3 needs to be adjusted to accommodate steel molds at different positions, the hydraulic supply component 36 supplies or withdraws hydraulic oil to the telescopic shaft 32. The sleeves 321 at each stage extend or retract synchronously, and the reamers at each stage move synchronously under the drive of the fixed sliding feet. During this process, because the pitch of each reamer is the same and the fixed sliding feet are all located at the ends of each sleeve 321, each reamer maintains the same axial displacement during extension and retraction. The gap between adjacent reamer sections remains constant during extension and retraction. This structure ensures that the length adjustment of the feeding assembly 3 does not disrupt the continuity of the screw conveyor.

[0031] During the extension and retraction of the telescopic shaft 32, the discharge port 35 moves synchronously with the telescopic end 312 of the housing 31. Since the discharge port 35 is fixed to the lower surface of the telescopic end 312 of the housing 31, and the telescopic end 312 of the housing 31 is connected to the end sleeve 321 of the telescopic shaft 32, the horizontal position of the discharge port 35 moves along the radial direction of the steel mold as the length of the feeding assembly 3 changes. This movement makes the horizontal position of the vibrating ball 41 within the steel mold adjustable, so that different areas in the width direction of the steel mold can be selectively vibrated during the material distribution process.

[0032] A second motor 34 is provided on the outside of the fixed end 311 of the housing 31. The output shaft of the second motor 34 is connected to the fixed end 311 of the telescopic shaft 32 through a reducer. The movable end of the telescopic shaft 32 passes through the telescopic end 312 of the housing 31 and extends to the outside of the housing 31. The gear ring 381 of the planetary gear set 38 is fixedly connected to the movable end of the telescopic shaft 32. The outer shell 382 of the planetary gear set 38 is rotatably supported on the outer wall of the telescopic end 312 of the housing 31 through bearings. The planet carrier 383 of the planetary gear set 38 is fixedly installed inside the outer shell 382. The sun gear 384 is located at the center of the planet carrier 383 and can rotate freely. A discharge port 35 is provided on the lower surface of the telescopic end 312 of the housing 31. The discharge port 35 is circular and its diameter is smaller than the inner diameter of the housing 31. When the two feeding components 3 are adjusted to their respective set lengths, the two discharge ports 35 are located at the center above the two parallel cement pole steel molds.

[0033] Please see the appendix Figure 4 - Appendix Figure 9Two vibrating components 4 are respectively installed at the two discharge ports 35. Each vibrating component 4 includes a vibrating ball 41, which is located directly below the discharge port 35. The vibrating ball 41 includes a shell 411, which is a sealed gourd-shaped hollow shell composed of an upper ball and a lower ball. The diameter of the upper ball is larger than that of the lower ball, and the entire vibrating ball 41 is inverted gourd shape, that is, the diameter of the upper ball is larger and the diameter of the lower ball is smaller, and the diameter of the upper ball is larger than the diameter of the discharge port 35. An eccentric shaft 412 is provided at the center of the inner axis of the shell 411. The two ends of the eccentric shaft 412 are rotatably supported on the inner wall of the shell 411 by bearings. An eccentric block is fixedly provided on the eccentric shaft 412. When the eccentric shaft 412 rotates, the eccentric block rotates with the shaft, generating centrifugal force, which drives the entire shell 411 to produce high-frequency vibration. A magnet 44 is embedded inside the spherical shell 411 and is fixedly installed on the top of the inner wall of the upper sphere. The vibrating assembly 4 also includes two conical springs 42, which are symmetrically arranged on both sides of the vibrating ball 41. The tips of each conical spring 42 are downward, meaning that the upper diameter of the conical spring 42 is larger than the lower diameter. The upper end of each conical spring 42 is fixed to the outer wall of the discharge port 35, and the lower end of each conical spring 42 is fixed to the upper sphere of the vibrating ball 41. The vibrating ball 41 is suspended below the discharge port 35 by the two conical springs 42. An electromagnet 43 is also provided on the outer wall of the discharge port 35, and the position of the electromagnet 43 corresponds vertically to the position of the magnet 44 inside the vibrating ball 41. The soft shell 46 is a corrugated, flexible protective sleeve. One end of the soft shell 46 is sealed and fixed to the outer wall of the planetary gear set 38 housing 382, ​​and the other end of the soft shell 46 is sealed and fixed to the outer surface of the upper sphere of the spherical shell 411. A flexible steel wire shaft 45 is inserted inside the soft shell 46. One end of the flexible steel wire shaft 45 is fixedly connected to the sun gear 384 of the planetary gear set 38, and the other end of the flexible steel wire shaft 45 passes through the wall of the spherical shell 411 and is fixedly connected to the eccentric shaft 412 inside the spherical shell 411. When the telescopic shaft 32 rotates, the telescopic shaft 32 drives the gear ring 381 of the planetary gear set 38 to rotate. The gear ring 381 drives the sun gear 384 to rotate at a faster speed through the planetary gears. The sun gear 384 drives the flexible steel wire shaft 45 to rotate. The flexible steel wire shaft 45 drives the eccentric shaft 412 to rotate at high speed inside the spherical shell 411, thereby causing the spherical shell 411 to generate high-frequency vibration.

[0034] The hydraulic supply components 36 in the two feeding components 3 are controlled independently. Each hydraulic supply component 36 controls the telescopic shaft 32 of a feeding component 3 to telescopically extend and retract, thereby driving the corresponding discharge port 35 to move along the radial direction of the cement pole steel mold, so that the vibrating ball 41 can vibrate the concrete at different width positions inside the steel mold.

[0035] Please see the appendix Figure 1 - Appendix Figure 9The working process of the steel mold laying device for the production of this utility pole is as follows: First, the equipment is prepared and parameters are set: Based on the specifications and parallel spacing of the two cement pole steel molds to be produced, the hydraulic supply components 36 corresponding to the two feeding assemblies 3 are activated respectively. By supplying or extracting hydraulic oil into or from each telescopic shaft 32, the telescopic shafts 32 extend or retract to the set length. During the extension and retraction process, the telescopic shafts 32, through the structural relationship of their fixed end 311 connected to the second motor 34 and their movable end connected to the telescopic end 312 of the housing 31 through the planetary gear set 38, synchronously drive the telescopic end 312 of the housing 31 to move, so that the total length of the housing 31 matches the position of the corresponding steel mold. At the same time, during the extension and retraction process, the spacing between the various spiral cutters 33 fixed on their outer walls changes accordingly, forming a continuous and complete spiral conveying surface. When the two discharge ports 35 are accurately aligned with the center position above the two parallel cement pole steel molds, the operation of the hydraulic supply components 36 is stopped, and the current length is maintained. Then start the drive motor on vehicle body 1 to move vehicle body 1 to the starting fabric end of the steel mold.

[0036] Then, the material is received and mixed: concrete is continuously added into the receiving hopper 21, where it accumulates. The first motor 26 is started, driving a mixing shaft 23 directly connected to it to rotate. This mixing shaft 23 drives another mixing shaft 23 to rotate synchronously via a belt 25. The two mixing shafts 23 drive the mixing blades 28 to rotate within the receiving hopper 21, continuously mixing the concrete to prevent aggregate sedimentation and cement paste segregation. Simultaneously, the rotation of the mixing blades 28 pushes the concrete towards the two discharge ports 22 at the bottom of the receiving hopper 21. Under gravity, the concrete is discharged from the two discharge ports 22 and enters the housing 31 of their respective feeding components 3.

[0037] After the concrete enters the feeding assembly 3, the feeding and conveying process begins: the second motor 34 is started, and the second motor 34 drives the telescopic shaft 32 to rotate at a set speed through the reducer. The telescopic shaft 32 drives the spiral cutters 33 on its outer wall to rotate synchronously. The spiral cutters 33 together form a complete spiral conveying surface, which pushes the concrete that falls into the housing 31 from the inlet along the axial direction of the housing 31 towards the telescopic end 312. The concrete moves continuously towards the telescopic end 312 of the housing 31 under the push of the spiral cutters 33.

[0038] When the concrete is pushed to the telescopic end 312 of the casing 31, the discharge and placement of the concrete begin: at this time, the electromagnet 43 is de-energized and loses its magnetism. The magnet 44 located at the top of the upper part of the vibrating ball 41 is no longer attracted by the electromagnet 43. The vibrating ball 41 moves downward under the elastic restoring force of the two conical springs 42. The upper part of the vibrating ball 41 disengages from the lower end of the discharge port 35, and the discharge port 35 is fully opened. The vibrating ball 41 continues to move downward to the lowest position. At this time, the lower part of the vibrating ball 41 extends into the interior of the steel mold of the cement pole below, and the lower end of the lower part of the ball is close to the bottom of the inner wall of the steel mold, but a set safety distance is maintained between the two. The vibrating ball 41 does not directly contact the inner wall of the steel mold.

[0039] After the discharge port 35 is opened, the concrete is discharged downwards from the discharge port 35. The discharged concrete first falls into the conical space enclosed by the two conical springs 42. A portion of the concrete passes through the gap between the adjacent spring coils of the conical springs 42 and falls directly into the lower steel mold. This portion of the concrete mainly falls on both sides of the width direction of the steel mold. Another portion of the concrete is guided along the inner wall of the conical springs 42 to the upper surface of the upper sphere of the vibrating ball 41. This upper surface is a convex spherical surface. Under the action of gravity, the concrete slides down the spherical surface in all directions. Since the diameter of the upper sphere is larger than the diameter of the lower sphere and larger than the diameter of the discharge port 35, the sliding concrete is evenly distributed on both sides of the width direction of the steel mold. Both portions of the concrete are distributed in a way that they first fall on both sides of the steel mold and then slowly converge towards the bottom center along the inner wall of the semi-circular shell-shaped steel mold, thereby forming a uniform material layer in the steel mold and avoiding the concrete from directly accumulating at the bottom center of the steel mold.

[0040] As concrete is discharged from the discharge port 35, the rotational power of the second motor 34 is transmitted to the gear ring 381 of the planetary gear set 38 through the telescopic shaft 32. The rotation of the gear ring 381, through the transmission action of the planetary gears, enables the sun gear 384 to obtain a speed-up rotational output. The sun gear 384 drives the flexible steel wire shaft 45 to rotate, and the flexible steel wire shaft 45 drives the eccentric shaft 412 inside the vibrating ball 41 to rotate at high speed. The eccentric block on the eccentric shaft 412 generates periodic centrifugal force during rotation. This centrifugal force drives the entire spherical shell 411 to generate high-frequency vibration. This high-frequency vibration is transmitted to the concrete inside the steel mold through the outer surface of the spherical shell 411, which immediately vibrates the concrete during the concrete placement process, eliminates air bubbles in the concrete, and improves the density of the concrete. The vibration of the spherical shell 411 is transmitted to the outer wall of the discharge port 35 through the conical spring 42. Due to the good elastic buffering effect of the conical structure of the conical spring 42, the vibration energy is greatly attenuated during the transmission process. Only a very small amount of vibration is transmitted to the feeding assembly 3, which will not affect the normal operation of the feeding assembly 3.

[0041] During the material placement and vibration process, the vehicle body 1 moves forward at a constant speed along the axial direction of the steel mold under the drive of the travel drive motor. As the vehicle body 1 moves forward, the discharge port 35 and the vibrating ball 41 move synchronously along the axial direction of the steel mold, so as to realize continuous material placement and synchronous vibration of the entire length of the steel mold.

[0042] During the concrete placement process, as the concrete level inside the steel mold gradually rises, the lower part of the vibrating ball 41 is gradually buried by the concrete. Since the spherical shell 411 is a sealed hollow shell, its overall density is less than that of the concrete. The spherical shell 411 is subjected to an upward buoyancy in the concrete. At the same time, the conical spring 42 applies a downward elastic thrust to the vibrating ball 41. Under the combined action of buoyancy and elastic thrust, the vibrating ball 41 always remains near the middle and upper layers of the concrete level. That is, the vibrating ball 41 always automatically rises with the rise of the concrete level and always vibrates the newly filled concrete layer in real time.

[0043] During the concrete placement process, hydraulic oil can be supplied or extracted into the telescopic shaft 32 via the hydraulic supply component 36, causing the telescopic shaft 32 to perform small-amplitude reciprocating telescopic movements. The telescopic shaft 32's telescopic movement drives the discharge port 35 to move back and forth along the radial direction of the steel mold via the sleeve 31, thereby causing the vibrating ball 41 to move back and forth in the width direction of the steel mold. This action allows the vibrating ball 41 to perform zoned vibration of the concrete at different width positions within the steel mold, ensuring that the concrete in all areas of the entire cross section of the steel mold receives sufficient vibration effect.

[0044] After the concrete is laid, the first motor 26 and the second motor 34 are turned off, the addition of concrete to the receiving hopper 21 is stopped, and the vehicle body 1 stops moving. At this time, the cleaning operation begins: clean water is continuously added to the receiving hopper 21. The clean water flows from the receiving hopper 21 into the two discharge ports 22, rinsing the discharge ports 22 and the mixing shaft 23. The clean water then enters the housing 31 of the two feeding components 3, rinsing the telescopic shaft 32, each section of the spiral cutter 33, and the inner wall of the housing 31. The cleaning water carrying residual concrete moves towards the telescopic end 312 of the housing 31 with the assistance of the rotation of the spiral cutter 33, and finally exits from the discharge port 35. The cleaning water discharged from the discharge port 35 rinses the cone spring 42 and the vibrating ball 41 below, cleaning the residual concrete adhering to the gap of the cone spring 42 and the surface of the vibrating ball 41.

[0045] After cleaning, the electromagnet 43 is energized, generating magnetism and attracting the magnet 44 inside the vibrating ball 41. Under the attraction of the electromagnet 43, the vibrating ball 41 overcomes the elastic force of the conical spring 42 and the weight of the residual concrete above, moving upward. The upper part of the vibrating ball 41 gradually approaches the lower port of the discharge port 35. Since the diameter of the upper ball is larger than the diameter of the discharge port 35 and the upper ball is spherical, the outer spherical surface of the upper ball forms a spherical contact seal with the annular edge of the lower port of the discharge port 35, and the discharge port 35 is completely blocked. At this point, the material placement operation of the steel mold is completed.

[0046] 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 steel mold material placement device for pole production, characterized in that, The vehicle includes a body (1), on which a receiving assembly (2) and a feeding assembly (3) are installed. The feeding assembly (3) is installed below the receiving assembly (2). The receiving assembly (2) includes a receiving hopper (21). Two discharge ports (22) are arranged side by side at the bottom of the receiving hopper (21). A feeding assembly (3) is arranged below each discharge port (22). A vibrating assembly (4) is arranged at the discharge port (35) of the feeding assembly (3). The vibrating assembly (4) includes a vibrating ball (41) and a conical spring (42). The vibrating ball (41) is suspended below the discharge port (35) by the conical spring (42). An electromagnet (43) is arranged at the discharge port (35). A magnet (44) is arranged inside the vibrating ball (41).

2. The steel mold material placement device for pole production according to claim 1, characterized in that, The discharge port (22) has a funnel-shaped structure. A stirring shaft (23) is provided at the center of each discharge port (22). A pulley (24) is provided at the upper end of each stirring shaft (23). The two pulleys (24) are connected by a belt (25). The upper end of one of the stirring shafts (23) is fixedly connected to the output shaft of a first motor (26). The first motor (26) is mounted on the upper surface of the receiving hopper (21) through a mounting plate (27).

3. The steel mold material placement device for pole production according to claim 2, characterized in that, Each of the stirring shafts (23) is provided with stirring blades (28), which are located inside the receiving hopper (21), and the lower end of each stirring shaft (23) passes through the corresponding discharge port (22) and extends to the outlet end of the discharge port (22).

4. The steel mold material placement device for pole production according to claim 1, characterized in that, The feeding assembly (3) includes a housing (31) and a telescopic shaft (32). The telescopic shaft (32) is coaxially disposed inside the housing (31). One end of the housing (31) is a fixed end (311), and the other end of the housing (31) is a telescopic end (312). One end of the telescopic shaft (32) is connected to the fixed end (311), and the other end of the telescopic shaft (32) passes through the telescopic end (312) and extends to the outside of the housing (31). The telescopic end (312) of the housing (31) has the discharge port (35).

5. The steel mold material placement device for pole production according to claim 4, characterized in that, The telescopic shaft (32) is a multi-sleeve structure. The telescopic shaft (32) is formed by several sleeves (321) slidingly connected in sequence. The adjacent sleeves (321) are connected by spline fit. A sealing ring is provided at the spline fit surface of the adjacent sleeves (321). A spiral cutter (33) is provided on the outer wall of each sleeve (321).

6. The steel mold material placement device for pole production according to claim 5, characterized in that, A second motor (34) is provided on the outside of the fixed end (311) of the housing (31). The output shaft of the second motor (34) is connected to the fixed end (311) of the telescopic shaft (32) through a reducer. A hydraulic supply component (36) is also provided on the fixed end (311) of the housing (31). The hydraulic supply component (36) is connected to the hydraulic cavity inside the telescopic shaft (32) through a hose (37).

7. The steel mold material placement device for pole production according to claim 4, characterized in that, The telescopic shaft (32) is fixedly connected to the gear ring (381) of the planetary gear set (38) at one end extending outside the housing (31). The outer shell (382) of the planetary gear set (38) is rotatably supported on the outer end face of the telescopic end (312) of the housing (31) by bearings. The planet carrier (383) of the planetary gear set (38) is fixedly installed inside the outer shell (382).

8. The steel mold material placement device for pole production according to claim 7, characterized in that, The vibrating assembly (4) further includes a flexible steel wire shaft (45) and a soft shell (46). The soft shell (46) is fitted on the outside of the flexible steel wire shaft (45). One end of the soft shell (46) is fixed to the outer wall of the planetary gear set (38), and the other end of the soft shell (46) is fixed to the spherical shell (411) of the vibrating ball (41). One end of the flexible steel wire shaft (45) is fixedly connected to the sun gear (384) of the planetary gear set (38), and the other end of the flexible steel wire shaft (45) passes through the wall of the spherical shell (411) and extends into the interior of the spherical shell (411).

9. A steel mold material placement device for pole production according to claim 8, characterized in that, The vibrating ball (41) includes the spherical shell (411) and the eccentric shaft (412). The spherical shell (411) is a sealed hollow shell. The spherical shell (411) is in the shape of an inverted gourd. The diameter of the upper sphere of the spherical shell (411) is larger than the diameter of the lower sphere of the spherical shell (411). The eccentric shaft (412) is rotatably disposed at the internal axis of the spherical shell (411). An eccentric block is fixedly disposed on the eccentric shaft (412). One end of the flexible steel wire shaft (45) extending into the interior of the spherical shell (411) is fixedly connected to the eccentric shaft (412). The magnet (44) is embedded in the top of the inner wall of the upper sphere of the spherical shell (411).

10. A steel mold material placement device for pole production according to claim 1, characterized in that, Two conical springs (42) are provided, and the two conical springs (42) are symmetrically arranged on both sides of the vibrating ball (41). The cone tip of each conical spring (42) is set downward. The upper end of each conical spring (42) is fixed to the outer wall of the discharge port (35), and the lower end of each conical spring (42) is fixed to the upper part of the vibrating ball (41). The electromagnet (43) is fixedly arranged on the outer wall of the discharge port (35), and the electromagnet (43) and the magnet (44) are arranged vertically in correspondence.

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