Environment-friendly power transmission line cement pole forming equipment

Abstract

The present application relates to cement pole forming technical field, specifically disclose a kind of environment-friendly power transmission line cement pole forming equipment, comprising: rack;Circumferential rotation unit;Driving unit;Elastic jacking unit;And axial vibration unit.Driving unit synchronously drives circumferential rotation and axial vibration, so that mold is subjected to periodic axial thrust and elastic reset force while centrifugal rotation, form dynamic coupling effect, forced slurry spreads along axial direction uniformly, eliminate local accumulation, reduce wall thickness deviation, improve bending stiffness and crack resistance;High-frequency vibration accelerates bubble escape, eliminate honeycomb surface, and promote aggregate secondary rearrangement, make internal structure dense, enhance impermeability and corrosion resistance;Elastic jacking and vibration unit constitute flexible constraint, absorb instantaneous impact, avoid mold and rack to bear peak stress, reduce deformation cracking, effectively prolong the service life of mold and complete machine.

Description

Technical Field

[0001] This invention relates to the field of cement pole forming technology, and more specifically, to an environmentally friendly cement pole forming device for power transmission lines. Background Technology

[0002] The mainstream production process for cement poles for power transmission lines is centrifugal molding. Concrete is poured into a mold consisting of two halves, and then the mold is rotated at high speed on a centrifuge. The powerful centrifugal force will evenly throw the concrete onto the inner wall of the mold and compact it to form a hollow pole. After that, the concrete is cured by steam to harden, and finally the mold is removed to obtain the finished product.

[0003] Existing centrifugal molding equipment relies solely on the centrifugal force generated by the circumferential rotation of the mold to make the slurry adhere to the wall, which cannot effectively control the axial flow and distribution of the slurry. Due to the viscosity of the slurry, it is very easy to accumulate in local areas of the mold (especially in the variable diameter section) during high-speed centrifugation, resulting in inconsistent wall thicknesses of different sections of the molded cement rod, which seriously weakens the bending stiffness and overall structural strength of the rod. In addition, centrifugal action alone is not enough to effectively remove air bubbles entrained in the mud, and microscopic defects such as honeycomb and pitting often exist inside the finished product; cement particles and aggregates cannot be rearranged in a secondary orientation, and the bonding in the interface transition zone is loose, resulting in poor impermeability and corrosion resistance of the rod body, and short service life in harsh natural environments. Summary of the Invention

[0004] To overcome the above-mentioned technical problems, this invention proposes an environmentally friendly cement pole forming device for power transmission lines.

[0005] The objective of this invention can be achieved through the following technical solutions: An environmentally friendly cement pole forming equipment for power transmission lines, used for centrifugal forming of cement pole molds, includes: frame; The circumferential rotation unit consists of two sets symmetrically distributed on the frame, used to drive the cement rod mold to rotate circumferentially. A drive unit, which is mounted on the frame, is used to drive the two sets of circumferential rotating units; The elastic support unit is located at one end of the frame and is used to provide elastic support to one end of the cement pole mold. An axial vibration unit, located at the other end of the frame, is used to perform axial periodic vibration on the end of the cement pole mold that is away from the elastic support unit.

[0006] As a further aspect of the present invention: the circumferential rotating unit includes a rotating roller, a friction driving component for driving the cement rod mold is fixedly disposed in the middle of the rotating roller, and rotating support components that roll and fit against the cement rod mold are rotatably disposed at both ends of the rotating roller.

[0007] As a further aspect of the present invention: the friction drive component includes a plurality of guide rails circumferentially distributed on the rotating roller, each guide rail having a limit plate at both ends, and a friction wheel being slidably sleeved on the guide rail along the axial direction.

[0008] As a further aspect of the present invention: the rotating support includes a support wheel rotatably mounted on the rotating roller, the support wheel having an annular groove, and a plurality of support balls arranged circumferentially in the annular groove.

[0009] As a further aspect of the present invention: the drive unit includes a drive motor fixed on the frame and a transmission shaft rotatably mounted on the frame, the output end of the drive motor and the transmission shaft are connected by a first transmission belt; a drive gear is coaxially arranged on the transmission shaft, and driven gears meshing with the drive gear are arranged on both sets of rollers.

[0010] As a further aspect of the present invention: the elastic support unit includes a first guide rail vertically disposed at one end of the frame and a first slide table slidably installed in the first guide rail. A first adjusting cylinder for driving the first slide table is installed at the bottom of the first guide rail. A support spring is connected to the side of the first slide table facing the cement pole mold, and a support member that abuts against the cement pole mold is connected to the end of the support spring away from the first slide table.

[0011] As a further aspect of the present invention: the top support includes a mounting plate fixedly connected to the top support spring, and a top support turntable is rotatably mounted on the end of the mounting plate away from the first slide.

[0012] As a further embodiment of the present invention: the axial vibration unit includes a support base fixed on the frame, and sliding rods are horizontally slidably provided on both sides of the support base. A telescopic frame is fixed to one end of the sliding rod facing the cement pole mold, and a ball sleeve is provided on the telescopic frame, with a vibration ball movably embedded in the ball sleeve.

[0013] As a further embodiment of the present invention: a vibratory shaft is rotatably installed inside the support base, and a rotating cylinder is fixed at one end of the vibratory shaft facing the telescopic frame. An elliptical groove is formed on the outer circumferential surface of the rotating cylinder, and a sliding pin adapted to the elliptical groove is provided on the telescopic frame; a second pulley is provided at the end of the vibratory shaft away from the telescopic frame, and a first pulley is provided on the transmission shaft. A second transmission belt connects the first pulley and the second pulley.

[0014] As a further aspect of the present invention: both ends of the frame are symmetrically provided with attitude adjustment units adapted to the circumferential rotation unit. The attitude adjustment unit includes a second guide rail inclinedly disposed on the frame and a second slide table slidably installed in the second guide rail. The upper end of the second slide table is provided with a bearing seat adapted to the rotation of the circumferential rotation unit, and the lower end of the second guide rail is provided with a second adjusting cylinder for driving the second slide table.

[0015] The beneficial effects of this invention are: By synchronously driving the circumferential rotation unit and the axial vibration unit through the drive unit, the cement pole mold is subjected to the periodic thrust of the axial vibration unit and the elastic restoring force of the elastic support unit while rotating at high speed. This dynamic coupling effect forces the slurry to generate forced reciprocating displacement and shear flow along the axial direction during the radial wall-fitting process. This effectively eliminates the drawback of slurry accumulating in local areas due to viscous resistance, ensuring that the slurry is evenly spread on the inner wall of the mold, thereby reducing the wall thickness deviation of each section of the formed cement pole and improving the bending stiffness and crack resistance of the pole. During the process of centrifugal force pushing the slurry against the inner wall of the mold for compaction, the high-frequency periodic thrust applied by the axial vibration unit accelerates the rapid rise and escape of air bubbles entrained in the slurry, effectively eliminating internal defects such as honeycomb and pitting. On the other hand, the shear stress generated by axial oscillation causes cement particles, aggregates and sand to undergo secondary directional rearrangement, making the aggregate gradation more reasonable and the bonding in the interface transition zone more compact. As a result, the internal structure of the formed pole is dense, enhancing its impermeability and corrosion resistance, and extending the service life of the cement pole for power transmission lines in harsh natural environments. An elastic support unit is installed at one end of the frame, which together with the axial vibration unit at the other end forms a flexible constraint system. During axial vibration, the elastic support unit provides elastic reaction force that varies with displacement. This not only constrains the axial reciprocating oscillation stroke required by the cement pole mold, but also effectively absorbs and buffers the instantaneous impact kinetic energy generated by the axial vibration unit. This avoids excessive peak stress on the mold end and the frame, thereby reducing the occurrence of problems such as mold deformation and weld cracking, and extending the maintenance cycle and service life of the cement pole mold and the core components of the whole machine. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention; Figure 3 This is a schematic diagram of the circumferential rotation unit in this invention; Figure 4 This is a schematic diagram of the drive unit in this invention; Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 for Figure 3 Enlarged view at point B in the middle; Figure 7 This is a schematic diagram of the elastic support unit in this invention; Figure 8 This is a schematic diagram of the axial vibration unit in this invention; Figure 9 This is a schematic diagram of the attitude adjustment unit in this invention.

[0018] In the picture: 100. Rack; 200. Circumferential rotating unit; 210. Rotating roller; 220. Friction drive component; 221. Guide slide bar; 222. Limiting plate; 223. Friction wheel; 230. Rotating support component; 231. Support wheel; 232. Annular groove; 233. Support ball; 240. Driven gear; 300, Drive unit; 310, Drive motor; 320, Transmission shaft; 330, First transmission belt; 340, Drive gear; 350, First pulley; 400, Elastic support unit; 410, First guide rail; 420, First slide table; 430, First adjusting cylinder; 440, Support spring; 450, Mounting plate; 460, Support turntable; 500, Axial vibration unit; 510, Support base; 520, Slide rod; 530, Telescopic frame; 531, Sliding pin; 540, Ball sleeve; 550, Vibrating ball; 560, Vibrating shaft; 570, Rotary drum; 571, Elliptical groove; 580, Second pulley; 590, Second transmission belt; 600, Attitude adjustment unit; 610, Second guide rail; 620, Second slide table; 630, Bearing seat; 640, Second adjusting cylinder; 700. Cement pole mold. Detailed Implementation

[0019] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0020] Please see Figure 1 and Figure 2This invention discloses an environmentally friendly cement pole forming equipment for power transmission lines, which is used for centrifugal forming of cement pole molds 700, including a frame 100, a circumferential rotating unit 200, a driving unit 300, an elastic support unit 400, and an axial vibration unit 500. Two sets of circumferential rotation units 200 are symmetrically distributed on the frame 100 to drive the cement pole mold 700 to rotate circumferentially; the drive unit 300 is disposed on the frame 100 to drive the two sets of circumferential rotation units 200; the elastic support unit 400 is disposed at one end of the frame 100 to provide elastic support to one end of the cement pole mold 700; the axial vibration unit 500 is disposed at the other end of the frame 100 to perform axial periodic vibration on the end of the cement pole mold 700 away from the elastic support unit 400.

[0021] Specifically, after the steel cage is placed into the cement pole mold 700, the mold is closed and fixed. Then, the prepared slurry is poured into the cement pole mold 700 according to the preset amount. Then, the cement pole mold 700 is hoisted onto two sets of circumferential rotating units 200, so that one end of the cement pole mold 700 abuts against the elastic top support unit 400 and the other end of the cement pole mold 700 abuts against the axial vibration unit 500. The drive unit 300 drives two sets of circumferential rotating units 200 to rotate synchronously in the same direction. Under the action of friction, the cement pole mold 700 supported above is driven to rotate synchronously in the circumferential direction. This causes the slurry inside the cement pole mold 700 to be thrown against the inner wall of the mold and compacted under the action of centrifugal force, forming a hollow pole. During the centrifugal molding process of the cement pole mold 700 driven by the circumferential rotating unit 200, the drive unit 300 synchronously drives the axial vibration unit 500 to apply a periodic axial thrust to one end of the cement pole mold 700. Combined with the elastic support of the elastic support unit 400 at the other end, the cement pole mold 700 oscillates back and forth along the axial direction while rotating. This ensures that the slurry inside the cement pole mold 700 is evenly distributed along the axial direction, avoiding local accumulation of slurry and causing inconsistent wall thickness in different areas of the molded cement pole, thereby improving the overall strength of the finished cement pole.

[0022] It should be noted that by synchronously driving the circumferential rotation unit 200 and the axial vibration unit 500 through the drive unit 300, the cement pole mold 700 is subjected to the periodic thrust of the axial vibration unit 500 and the elastic restoring force of the elastic support unit 400 while rotating at high speed. This dynamic coupling effect forces the slurry to generate forced reciprocating displacement and shear flow along the axial direction during the radial wall-fitting molding process, effectively eliminating the disadvantage of slurry accumulating in local areas due to viscous resistance, ensuring that the slurry is evenly spread on the inner wall of the mold 700, thereby reducing the wall thickness deviation of each section of the molded cement pole and improving the bending stiffness and crack resistance of the pole. During the process of centrifugal force pushing the slurry against the inner wall of the mold 700 for compaction, the high-frequency periodic thrust applied by the axial vibration unit 500 accelerates the rapid rise and escape of air bubbles entrained in the slurry, effectively eliminating internal defects such as honeycomb and pitting. On the other hand, the shear stress generated by axial oscillation causes cement particles, aggregates and sand to undergo secondary directional rearrangement, making the aggregate gradation more reasonable and the bonding in the interface transition zone more compact. As a result, the internal structure of the formed pole is dense, enhancing its impermeability and corrosion resistance, and extending the service life of the transmission line cement pole in harsh natural environments. An elastic support unit 400 is installed at one end of the frame 100, which together with the axial vibration unit 500 at the other end forms a flexible constraint system. During axial vibration, the elastic support unit 400 provides an elastic reaction force that varies with displacement, which not only constrains the axial reciprocating oscillation stroke required by the cement pole mold 700, but also effectively absorbs and buffers the instantaneous impact kinetic energy generated by the axial vibration unit 500. This avoids excessive peak stress on the end of the mold 700 and the frame 100, thereby reducing the occurrence of problems such as mold deformation and weld cracking, and extending the maintenance cycle and service life of the cement pole mold 700 and the core components of the whole machine.

[0023] In one embodiment, please refer to Figure 3 The circumferential rotation unit 200 includes a rotating roller 210, a friction drive component 220 for driving the cement rod mold 700 is fixedly provided in the middle of the rotating roller 210, and rotating support components 230 that roll and fit with the cement rod mold 700 are rotatably provided at both ends of the rotating roller 210. Specifically, the cement rod mold 700 is placed in the middle of the two rotating rollers 210. The two ends of the cement rod mold 700 are supported by the rotating support members 230 at both ends of the rotating rollers 210. Since the diameter of the cement rod mold 700 decreases linearly along the axial section, the diameters of the rotating support members 230 at both ends of the rotating rollers 210 are also different to match the difference in the diameter of the two ends of the cement rod mold 700. The friction driving member 220 in the middle of the rotating rollers 210 and the friction force between the friction driving member 220 and the outer peripheral surface of the cement rod mold 700 are used to drive the cement rod mold 700 to rotate synchronously, so that the mud inside the cement rod mold 700 is radially attached to the inner wall of the cement rod mold 700 under centrifugal force. The friction drive component 220 is fixedly installed at the center of the friction drive component 220. Rotary support components 230 that can rotate freely are set at both ends of the rotating roller 210. When the cement rod mold 700 rotates with the friction drive component 220, the rotating support components 230 at both ends of the rotating roller 210 also rotate adaptively with the cement rod mold 700. Since the diameters at both ends of the cement rod mold 700 are different, the rotation speeds of the rotating support components 230 at both ends of the rotating roller 210 are also different, so as to ensure that the cement rod mold 700 will not jump or deflect during the overall rotation process.

[0024] It is worth noting that, since the cement pole mold 700 has a linearly variable diameter (conical structure) along the axial direction, if a traditional equal-diameter roller is used for support, the difference in linear velocity at both ends will cause forced torsional stress inside the mold. In this invention, a freely rotatable rotating support 230 is independently set at both ends of the rotating roller 210, and its diameter is adapted to the cross-sectional diameter of both ends of the cement pole mold 700. During the centrifugal molding process, the rotating support 230 at both ends adaptively adjusts its rotation speed according to the actual diameter of the mold 700 at the contact part, ensuring that the cement pole mold 700 rotates smoothly without additional torque. The centrally located friction drive component 220 is fixedly connected, utilizing a large contact area to provide stable friction force, ensuring effective driving of the cement rod mold 700; while the rotating support components 230 at both ends are freely rotatable, providing only load-bearing and follow-up guiding functions, avoiding excessive wear or slippage and instability caused by the support components bearing heavy loads and driving torques simultaneously, so that the driving process is not affected by the taper runout of the mold 700, and the friction drive component 220 always fits against the outer circumference of the mold 700, making the centrifugal speed control more precise; Cement rod molds 700 typically have a large length-to-diameter ratio, making them prone to flexural deformation and radial runout under high-speed centrifugal conditions. This invention utilizes four rotating support members 230 (two side rollers 210) to form a four-point floating support structure at both ends of the cement rod mold 700. Since each rotating support member 230 can fit against the outer wall of the mold with its corresponding cross-section and rotate freely, and the rotational speed of each rotating support member 230 is adaptively matched, it will not generate additional axial or circumferential disturbances to the mold 700. This effectively suppresses the whirling and vibration of the rod body during high-speed rotation, and significantly improves the roundness and straightness of centrifugal forming. The axis of the cement pole mold 700 is always parallel to the axis of the rotating roller 210, ensuring that the slurry adheres evenly in the radial direction under the action of centrifugal force. Combined with the oscillation action of the axial vibration unit 500, even in the transition area (conical section) of the cement pole diameter change, the slurry can be evenly spread and compacted in an absolutely stable centrifugal environment, effectively preventing the problem of imbalance in the wall thickness ratio between the large end and the small end caused by rotational eccentricity or shaking.

[0025] Further, please refer to Figure 3 and Figure 5 The friction drive component 220 includes a plurality of guide slides 221 circumferentially distributed on the rotating roller 210. Each end of the guide slide 221 is provided with a limit piece 222, and a friction wheel 223 is slidably sleeved on the guide slide 221 along the axial direction. Specifically, the friction wheel 223 can slide axially relative to the rotating roller 210 along the guide slide 221. In this way, when the axial vibration unit 500 drives the cement pole mold 700 to oscillate axially, the friction wheel 223 and the outer peripheral surface of the cement pole mold 700 always maintain rolling friction, thereby enabling the friction wheel 223 to slide axially adaptively relative to the rotating roller 210. This avoids the friction wheel 223 from axially sliding with the cement pole mold 700 when driving the cement pole mold 700 to rotate, which would cause power transmission failure. The guide slide 221 can always ensure that the rotating roller 210 applies a continuous and uninterrupted circumferential torque to the friction wheel 223.

[0026] It should be noted that when the friction wheel 223 is slidably mounted along the guide strip 221, and the axial vibration unit 500 pushes the mold 700 to oscillate axially, the friction wheel 223 can follow the outer circumferential surface of the mold 700 to generate synchronous axial displacement, and always maintain pure rolling contact with the mold 700, so as to avoid the friction wheel 223 from being dislodged and suspended due to axial misalignment, and ensure that the circumferential driving torque can be continuously injected during the axial oscillation process. If the friction wheel 223 is fixed axially, the axial vibration of the mold 700 will force the contact surface between the two to produce severe sliding friction, which will not only quickly wear down the outer wall of the mold 700 and the surface of the friction wheel 223, but also consume a lot of ineffective energy due to frictional resistance, and even cause local high temperature to burn the mold. The present invention provides the friction wheel 223 with axial sliding freedom by means of the guide slide 221, reduces the shear stress of the contact interface, and enables the energy output by the drive unit 300 to be effectively converted into the effective work of driving the mold 700 to rotate. While giving the friction wheel 223 axial freedom, the guide slide 221 provides a stable torque transmission path with its fixed circumferential rigidity. No matter which axial position the friction wheel 223 slides to, the rotational kinetic energy of the roller 210 can be transmitted to the friction wheel 223 through the guide slide 221, thereby driving the mold 700.

[0027] Furthermore, please refer to Figure 3 and Figure 6 The rotating support 230 includes a support wheel 231 rotatably mounted on the rotating roller 210. The support wheel 231 has an annular groove 232, and a plurality of support balls 233 are arranged circumferentially in the annular groove 232. Specifically, the cement pole mold 700 is supported on the corresponding support balls 233 on the support wheel 231. When the cement pole mold 700 rotates circumferentially and moves axially, the support balls 233 in contact with the cement pole mold 700 can follow and roll adaptively, thereby effectively reducing the frictional resistance between the rotating support 230 and the cement pole mold 700, and achieving stable support for the cement pole mold 700.

[0028] It should be noted that the cement pole mold 700 undergoes high-speed circumferential rotation and axial reciprocating oscillation simultaneously during the molding process, and the motion trajectory of any point on its surface is a spiral. In this invention, several support balls 233 are arranged circumferentially in the annular groove 232 of the support wheel 231, and each support ball 233 has an independent omnidirectional rolling degree of freedom. When the mold 700 performs compound motion, the support balls 233 in contact with the outer wall of the mold 700 can adaptively adjust their own rolling vector according to the instantaneous velocity direction of the contact point, accurately decompose and match the two velocity components of axial and circumferential, thereby eliminating the additional force of motion constraint on the mold 700. During the axial reciprocating oscillation stage, the support ball 233 can smoothly roll along the axial surface of the mold 700, avoiding severe wear and heat accumulation caused by sliding friction. When the axial vibration unit 500 applies high-frequency periodic impact, the rolling contact between the support ball 233 and the outer wall of the mold 700 is not a rigid collision, but rather a damping and vibration absorption effect is formed by the slight position adjustment of the support ball 233 in the annular groove 232 and the compression of the lubricating oil film. This effect can effectively filter out the high-frequency micro-vibration components transmitted to the outer wall of the mold 700, preventing fatigue pitting or scratches from being generated on the outer wall of the mold 700 due to continuous micro-impact, thereby maintaining the smoothness of the inner wall of the mold 700 and improving the smoothness and aesthetics of the cement pole surface after demolding.

[0029] Additionally, please see Figure 4 The drive unit 300 includes a drive motor 310 fixed on the frame 100 and a transmission shaft 320 rotatably mounted on the frame 100. The output end of the drive motor 310 is connected to the transmission shaft 320 via a first transmission belt 330. A drive gear 340 is coaxially arranged on the transmission shaft 320, and each of the two sets of rollers 210 is provided with a driven gear 240 that meshes with the drive gear 340. Specifically, under the transmission of the first transmission belt 330, the drive motor 310 drives the transmission shaft 320, i.e. the drive gear 340, to rotate. Then, under the meshing transmission of the drive gear 340 and the driven gear 240, the two side rollers 210 are driven to rotate synchronously.

[0030] In yet another embodiment, please refer to Figure 7 The elastic support unit 400 includes a first guide rail 410 vertically disposed at one end of the frame 100 and a first slide 420 slidably installed in the first guide rail 410. A first adjusting cylinder 430 for driving the first slide 420 is installed at the bottom of the first guide rail 410. A support spring 440 is connected to the side of the first slide 420 facing the cement pole mold 700. A support member that abuts against the cement pole mold 700 is connected to the end of the support spring 440 away from the first slide 420. The top support includes a mounting plate 450 fixedly connected to the top support spring 440, and a top support turntable 460 is rotatably mounted on the end of the mounting plate 450 away from the first slide table 420.

[0031] Specifically, the first adjusting cylinder 430 drives the first slide table 420 to slide vertically along the first guide rail 410, thereby adjusting the height of the top support to match the height of the cement pole mold 700; the top support spring 440 presses the top support turntable 460 on the mounting plate 450 against one end of the cement pole mold 700, with the center of the top support turntable 460 coinciding with the axis of the cement pole mold 700; when the cement pole mold 700 rotates circumferentially under the drive of the circumferential rotation unit 200, the top support turntable 460 can rotate synchronously with the cement pole mold 700 relative to the mounting plate 450; when the cement pole mold 700 oscillates axially under the drive of the axial vibration unit 500, the elastic top support unit 400 can adaptively extend and retract, thereby keeping the cement pole mold 700 pressed against the axial vibration unit 500.

[0032] It is worth noting that a top support turntable 460 is rotatably set at the end of the mounting plate 450, and the center of the top support turntable 460 is aligned with the axis of the cement rod mold 700. When the mold 700 rotates at high speed in the circumferential direction under the drive of the friction drive component 220, the top support turntable 460 can rotate synchronously with the end of the mold 700, thereby reducing the ineffective power consumption and local temperature rise caused by end face friction, and further preventing the deformation or burning of the end flange of the mold 700 due to long-term severe sliding wear. When the axial vibration unit 500 pushes the mold 700 in the compression return stroke, the top support spring 440 accumulates elastic potential energy; when the axial vibration unit 500 rebounds, the top support spring 440 releases the thrust instantaneously, ensuring that the end of the mold 700 is always tightly attached to the working end of the axial vibration unit 500, eliminating the end face impact gap and separation gap that may occur during the vibration process, ensuring that each periodic axial thrust can effectively inject mud, and greatly improving the compaction efficiency and uniformity of axial vibration.

[0033] Further, please refer to Figure 8 The axial vibration unit 500 includes a support base 510 fixed on the frame 100. The support base 510 has sliding rods 520 horizontally slidably passing through both sides. A telescopic frame 530 is fixed to one end of the sliding rod 520 facing the cement pole mold 700. A ball sleeve 540 is provided on the telescopic frame 530. A vibrating ball 550 is movably embedded in the ball sleeve 540. Please see Figure 4 and Figure 8A vibratory shaft 560 is rotatably mounted inside the support base 510. A rotating cylinder 570 is fixed to one end of the vibratory shaft 560 facing the telescopic frame 530. An elliptical groove 571 is provided on the outer circumferential surface of the rotating cylinder 570. A sliding pin 531 adapted to the elliptical groove 571 is provided on the telescopic frame 530. A second pulley 580 is provided at one end of the vibratory shaft 560 away from the telescopic frame 530. A first pulley 350 is provided on the transmission shaft 320. A second transmission belt 590 is connected between the first pulley 350 and the second pulley 580.

[0034] Specifically, when the drive motor 310 drives the circumferential rotating unit 200 to rotate, under the transmission of the second transmission belt 590, it synchronously drives the vibrating shaft 560 to rotate, which in turn drives the rotating drum 570 to rotate synchronously. Since the sliding pin 531 always slides along the elliptical groove 571, when the rotating drum 570 rotates circumferentially, it can drive the sliding pin 531 and the telescopic frame 530 to move back and forth axially. The sliding rod 520 adaptively extends and slides relative to the support seat 510, thereby realizing the periodic axial pushing of the vibrating ball 550 in the ball sleeve 540 onto the cement pole mold 700. With the axial elastic support of the elastic support unit 400, the cement pole mold 700 can oscillate axially while rotating. The vibrating ball 550 can adaptively roll with the cement pole mold 700, thereby reducing the frictional resistance of the cement pole mold 700.

[0035] It should be noted that by utilizing the elliptical groove 571 on the outer circumference of the rotating drum 570 and the sliding pin 531, the uniform rotational motion is transformed into a variable acceleration axial reciprocating motion. The asymmetrical geometric characteristics of the major and minor axes of the ellipse cause the telescopic frame 530 to generate different speed curves in the two strokes of pushing out (vibrating) and retracting (energy storage), thus realizing an asymmetrical vibration waveform. Based on the rheological characteristics of the mud, it can generate high-energy impact during pushing out to destroy the internal structure and viscosity of the mud, and slowly release it during retraction to promote mud flow and filling, thereby improving the efficiency of axial vibration in homogenizing the mud. When the vibratory ball 550 presses against the end of the cement pole mold 700, on the one hand, the vibratory ball 550 can adaptively roll with the circumferential rotation of the mold 700, efficiently transmitting the axial thrust while completely releasing the circumferential rotational freedom, avoiding additional frictional resistance to the rotational movement of the mold 700; on the other hand, the movable gap in the ball sleeve 540 allows the vibratory ball 550 to automatically fit even when there is slight deflection or jumping on the end face of the mold 700, always maintaining surface contact rather than point contact or line contact, effectively preventing the end of the mold 700 from being crushed or the vibratory ball 550 from abnormal wear caused by local stress concentration. Two sliding rods 520 are symmetrically arranged on both sides of the telescopic frame 530 and slide horizontally through the fixed support 510. This can effectively counteract the torsional torque caused by the tangential component force generated by the elliptical slide groove 571, ensuring that the telescopic frame 530 only performs reciprocating linear motion along the axis, and avoiding misalignment and separation of the vibrating ball 550 from the end of the mold 700 due to swaying or rotation. At the same time, the symmetrical layout of the double rods improves the support stiffness of the telescopic frame 530, enabling it to withstand the reaction force generated during vibration without bending deformation, thus ensuring the accuracy and stability under high-frequency oscillation.

[0036] Additionally, please see Figure 1 and Figure 9 The frame 100 is also symmetrically provided at both ends with attitude adjustment units 600 adapted to the circumferential rotation unit 200. The attitude adjustment unit 600 includes a second guide rail 610 inclinedly arranged on the frame 100 and a second slide 620 slidably installed in the second guide rail 610. The upper end of the second slide 620 is provided with a bearing seat 630 adapted to the rotation of the circumferential rotation unit 200, and the lower end of the second guide rail 610 is provided with a second adjusting cylinder 640 for driving the second slide 620. Specifically, by driving the second slide table 620 to slide along the second guide rail 610 through the second adjusting cylinder 640, the bearing seat 630 can be extended and retracted relative to the second slide table 620, thereby changing the height and horizontal position of the corresponding rotating roller 210. During the cement pole molding process, the second adjusting cylinder 640 drives the bearing seat 630 to retract downwards. At this time, the driven gear 240 at the end of the rotating roller 210 just meshes with the driving gear 340. At this time, the gap between the two rotating rollers 210 is at its maximum, which facilitates the stable support of the cement pole mold 700. When the molding process is completed, the two second adjusting cylinders 640 push the corresponding bearing seat 630 to tilt upwards and lift it up. The two rotating rollers 210 rise up synchronously and move closer to each other, thereby lifting the cement pole mold 700 supported in the middle upwards, so that the cement pole mold 700 can roll out from one side of the rotating roller 210 and be discharged.

[0037] It is worth noting that the second sliding table 620 is driven by the second adjusting cylinder 640 to slide along the inclined second guide rail 610, so that the bearing seat 630 drives the end of the rotating roller 210 to move horizontally towards each other while vertically rising and falling; in the molding operation state, the rotating roller 210 is in a low position and the spacing is at its maximum, forming a stable V-shaped support groove to ensure that the large-diameter mold 700 is firmly supported; in the demolding and unloading state, the rotating roller 210 rises synchronously and moves closer to each other, actively raising the center of gravity of the mold 700 and narrowing the support span, so that the mold 700 has a clear directional rolling tendency when it leaves the support surface; When the attitude adjustment units 600 on both sides simultaneously push the bearing seat 630 to tilt upwards, the roller 210 applies an upward lifting force to the mold 700, effectively overcoming the adhesion or static friction locking that may occur between the mold 700 and the surface of the roller 210 due to long-term centrifugal compaction. After the mold 700 is lifted and passes the highest point of the roller 210, due to the narrowing of the support span and the support point moving closer to the bottom center of the mold 700, the gravitational potential energy of the mold 700 is naturally converted into kinetic energy for rolling to one side. Only a slight external guiding force is needed to make the mold 700 roll out smoothly along the inclined tangent direction of the roller 210, avoiding the risk of collision damage caused by hook slippage or wire rope swaying in traditional hoisting methods. The driven gear 240 at the end of the roller 210 and the drive gear 340 of the drive unit 300 are mechanically automatically engaged and disengaged through the lifting and lowering of the attitude adjustment unit 600. At the forming station (low position), the gear pair is precisely engaged and fully meshed to ensure reliable power transmission. At the demolding station (high position), the gear pair is naturally disengaged to cut off the power source, which not only allows the drive unit 300 to stop independently or run unloaded during the unloading state.

[0038] The specific embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. An environmentally friendly cement pole forming equipment for power transmission lines, used for centrifugal forming of cement pole molds (700), characterized in that, include: Rack (100); Two sets of circumferential rotating units (200) are provided and symmetrically distributed on the frame (100) to drive the cement rod mold (700) to rotate circumferentially; A drive unit (300), which is mounted on a frame (100), is used to drive the two sets of circumferential rotating units (200). An elastic support unit (400) is provided at one end of the frame (100) and is used to provide elastic support to one end of the cement pole mold (700); An axial vibration unit (500) is provided at the other end of the frame (100) for axial periodic vibration of the end of the cement pole mold (700) away from the elastic top support unit (400).

2. The environmentally friendly cement pole forming equipment for power transmission lines according to claim 1, characterized in that, The circumferential rotating unit (200) includes a rotating roller (210), a friction drive component (220) for driving the cement rod mold (700) is fixedly provided in the middle of the rotating roller (210), and rotating support components (230) that roll and fit with the cement rod mold (700) are rotatably provided at both ends of the rotating roller (210).

3. The environmentally friendly cement pole forming equipment for power transmission lines according to claim 2, characterized in that, The friction drive component (220) includes a plurality of guide strips (221) circumferentially distributed on the rotating roller (210). Each end of the guide strip (221) is provided with a limiting piece (222), and a friction wheel (223) is slidably sleeved on the guide strip (221) along the axial direction.

4. The environmentally friendly cement pole forming equipment for power transmission lines according to claim 2, characterized in that, The rotating support (230) includes a support wheel (231) rotatably mounted on the rotating roller (210). The support wheel (231) has an annular groove (232) inside, and a plurality of support balls (233) are arranged circumferentially inside the annular groove (232).

5. The environmentally friendly cement pole forming equipment for power transmission lines according to claim 2, characterized in that, The drive unit (300) includes a drive motor (310) fixed on the frame (100) and a transmission shaft (320) rotatably mounted on the frame (100). The output end of the drive motor (310) is connected to the transmission shaft (320) via a first transmission belt (330). A drive gear (340) is coaxially arranged on the transmission shaft (320), and two sets of rollers (210) are each provided with a driven gear (240) that meshes with the drive gear (340).

6. The environmentally friendly cement pole forming equipment for power transmission lines according to claim 1, characterized in that, The elastic support unit (400) includes a first guide rail (410) vertically disposed at one end of the frame (100) and a first slide (420) slidably installed in the first guide rail (410). A first adjusting cylinder (430) for driving the first slide (420) is installed at the bottom of the first guide rail (410). A support spring (440) is connected to the side of the first slide (420) facing the cement rod mold (700). The end of the support spring (440) away from the first slide (420) is connected to a support member that abuts against the cement rod mold (700).

7. The environmentally friendly cement pole forming equipment for power transmission lines according to claim 6, characterized in that, The top support includes a mounting plate (450) fixedly connected to a top support spring (440), and a top support turntable (460) is rotatably mounted on one end of the mounting plate (450) away from the first slide (420).

8. The environmentally friendly cement pole forming equipment for power transmission lines according to claim 5, characterized in that, The axial vibration unit (500) includes a support base (510) fixed on the frame (100). A sliding rod (520) is horizontally slidably passed through both sides of the support base (510). A telescopic frame (530) is fixed at one end of the sliding rod (520) facing the cement pole mold (700). A ball sleeve (540) is provided on the telescopic frame (530), and a vibrating ball (550) is movably embedded in the ball sleeve (540).

9. The environmentally friendly cement pole forming equipment for power transmission lines according to claim 8, characterized in that, A vibratory shaft (560) is rotatably installed inside the support base (510). A rotating cylinder (570) is fixed at one end of the vibratory shaft (560) facing the telescopic frame (530). An elliptical groove (571) is provided on the outer circumference of the rotating cylinder (570). A sliding pin (531) adapted to the elliptical groove (571) is provided on the telescopic frame (530). A second pulley (580) is provided at one end of the vibratory shaft (560) away from the telescopic frame (530). A first pulley (350) is provided on the transmission shaft (320). A second transmission belt (590) is connected between the first pulley (350) and the second pulley (580).

10. The environmentally friendly cement pole forming equipment for power transmission lines according to claim 1, characterized in that, The frame (100) is also symmetrically provided at both ends with attitude adjustment units (600) adapted to the circumferential rotation unit (200). The attitude adjustment unit (600) includes a second guide rail (610) inclinedly arranged on the frame (100) and a second slide (620) slidably installed in the second guide rail (610). The upper end of the second slide (620) is provided with a bearing seat (630) adapted to the rotation of the circumferential rotation unit (200). The lower end of the second guide rail (610) is provided with a second adjusting cylinder (640) for driving the second slide (620).

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