High-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles

Abstract

This invention provides a high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles. The machine comprises a machine base and a pipe formwork for forming pipe piles. A movable material supply mechanism is provided at one end of the pipe formwork to supply material to the pipe formwork. The pipe formwork is equipped with a roll pressing mechanism for compressing concrete material, and the machine base is equipped with an excitation mechanism that works in cooperation with the roll pressing mechanism to densely pack the concrete material. The roll pressing mechanism comprises a roll, an active end support mechanism provided at one end of the roll, and a driven end support mechanism provided at the other end of the roll. The excitation mechanism comprises an excitation table and an excitation beam. Both ends of the excitation beam are installed on the excitation table via an elastic mechanism, and a roll assembly that supports the pipe formwork is installed on the excitation beam. The effects of this invention include a convenient overall layout, a simple process system, low infrastructure investment, low energy consumption, low noise, easy operation, and a high degree of intelligent integration, all achieved by centrifuging, rolling, and exciting the concrete raw material within the pipe formwork.

Description

Technical Field

[0001] The present invention relates to a molding machine, and particularly to a high-speed centrifugal molding machine for manufacturing large-diameter long pipe piles.

Background Art

[0002] Conventional concrete pipe pile centrifugal molding machines mainly manufacture short pipe piles such as concrete pipes with a length of 2 to 5 m, and their structure mainly consists of a pipe mold for the pipe pile, a driving mechanism, a roll set support mechanism, etc. With the continuous development of the times, the continuous improvement of demands, the enlargement of equipment, and the need for high-quality port construction, the requirements for the manufacture of concrete pipe piles are increasing. Existing concrete pipe pile centrifugal molding machines are not suitable for the manufacture of large-diameter long pipe piles. For example, for a large-diameter long pipe pile with a length of 8 m, due to the long length of the pipe pile, the requirements for the manufacturing equipment are further increased.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The technical problem to be solved by the present invention is to provide a high-speed centrifugal molding machine suitable for the manufacture of large-diameter long pipe piles with a length of 8 m, with reasonable design, good molding quality, high-speed molding, in view of the drawbacks of the prior art.

Means for Solving the Problems

[0004] To achieve the above object, the present invention adopts the following technical means. A high-speed centrifugal molding machine for manufacturing large-diameter long pipe piles includes a machine pedestal and a pipe mold for the pipe pile. The driving mechanism of the pipe mold is installed on the machine pedestal. Its feature is that a movable material supply mechanism for supplying materials into the pipe mold is provided at one end of the pipe mold, and a roll pressing mechanism for pressing the concrete material is provided in the pipe mold. And an excitation mechanism is installed on the roll support mechanism, which cooperates with the roll pressing mechanism to compact the concrete material.

[0005] The roll pressurizing mechanism comprises a crimping roll, an active end post mechanism provided at one end of the crimping roll, and a driven end post mechanism provided at the other end of the crimping roll. Both ends of the crimping roll are attached to the active and driven end post mechanisms, respectively. The crimping roll is provided with a cylindrical crimping roll body, and crimping roll sleeves are attached to both ends of the crimping roll body. Both the active and driven end post mechanisms are enclosed in a box with a door, and the rocker arm is hinged to the box on one side of the door. An oil cylinder for driving the rocker arm is installed inside the box. The oil cylinder is positioned vertically, and its piston rod is hinged to the inner end of the rocker arm. The outer end of the rocker arm of the driven end post mechanism is connected to the crimping roll sleeve via a claw mechanism. The outer end of the rocker arm of the active end post mechanism is fixedly connected to the crimping roll sleeve.

[0006] The excitation mechanism comprises an excitation table and an excitation beam. Both ends of the excitation beam are attached to the excitation table via an elastic mechanism, the excitation table is fixed to a machine base, the excitation beam is provided with a roll assembly for supporting the tubular formwork, and the excitation table is provided with a height adjustment mechanism for adjusting the initial height of the excitation beam.

[0007] The technical problem that this invention aims to solve can also be achieved by the following technical solution. A rocker arm position limiting mechanism is provided inside the box of the active end column mechanism. The rocker arm position limiting mechanism comprises an upper position seat positioned above the rocker arm and a lower position seat positioned below the rocker arm. A swing space is provided between the upper position seat and the lower position seat for the rocker arm to swing up and down. The upper position seat and the lower position seat are fixed to the inner wall of the box. Adjustment bolts for adjusting the vertical swing stroke of the rocker arm are inserted into and installed in the upper position seat and the lower position seat, respectively. A position limiting part corresponding to the adjustment bolt is fixed to the inner end of the rocker arm.

[0008] The technical problem that this invention aims to solve can also be achieved by the following technical solution. That is, the claw mechanism comprises a fixed block fixed to the outer end of the rocker arm and a movable block that engages with the fixed block, and a hydraulic cylinder for driving the movable block is provided on the rocker arm.

[0009] The technical problem that this invention aims to solve can also be achieved by the following technical solution: a safety protection mechanism to prevent the tubular formwork from detaching is provided on the machine base.

[0010] The technical problem that this invention aims to solve can also be achieved by the following technical solution. That is, the safety protection mechanism comprises two sets of pressure wheel assemblies arranged side by side along the axis of the tubular formwork, each set of pressure wheel assemblies is provided with two pressure wheel mechanisms, the two pressure wheel mechanisms are arranged on both sides of the tubular formwork, and each pressure wheel mechanism comprises a pressure wheel pressed against the upper outside of the tubular formwork, a swing arm for attaching the pressure wheel, a support column for attaching the pressure wheel swing arm, and a drive cylinder for driving the pressure wheel.

[0011] The technical problem that this invention aims to solve can also be achieved by the following technical solution. The elastic mechanism includes a spring positioned between the excitation table and the excitation beam, and a positioning rod that is hinged to the excitation table and extends upward through the spring and the excitation beam, with a gasket and nut attached to the upper end of the positioning rod.

[0012] The technical problem that this invention aims to solve can also be achieved by the following technical solution. The height adjustment mechanism includes an adjustment bracket, one end of which is fixed to the center of the excitation beam, and the other end of which is hinged to the excitation table. The excitation table is provided with a flexible rope connected to the center of the adjustment bracket for adjusting the height of the excitation beam.

[0013] The technical problem that this invention aims to solve can also be achieved by the following technical solution: A position-limiting cylinder that works in cooperation with a flexible rope is provided on an excitation table, the cylinder body of the position-limiting cylinder is fixed to the excitation table, and a suspension hook connected to the flexible rope is provided on the piston rod of the position-limiting cylinder.

[0014] The technical problem that this invention aims to solve can also be achieved by the following technical solution. The mobile material supply mechanism comprises a frame, rails installed on the frame, a mobile trolley installed on the rails, a hopper installed on the mobile trolley, and a screw conveyor. The screw conveyor and rails are arranged along the axis of the tubular formwork, one end of the screw conveyor is connected to a discharge port at the bottom of the hopper, and the other end of the screw conveyor has a discharge port that extends into the tubular formwork.

[0015] Compared to conventional technology, this invention is a machine that manufactures concrete pipe piles by centrifuging, rolling, and exciting concrete raw materials within a corresponding concrete pipe formwork, using a roll pressurizing mechanism and an excitation mechanism. The high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles described in this invention has advantages such as high molding quality of concrete pipe piles, long length, fast molding speed of concrete pipe piles, and a high success rate. The overall layout is convenient, the process system is simple, infrastructure investment is low, energy consumption is low, noise is low, it is easy to operate, and it has a high degree of intelligent integration. [Brief explanation of the drawing]

[0016] [Figure 1] This is a diagram showing the configuration of the high-speed centrifugal molding machine according to the present invention. [Figure 2] This is a partial view of Figure 1. [Figure 3] This is a left side view of Figure 1. [Figure 4] This is a diagram showing the configuration of the roll pressurizing mechanism. [Figure 5] This is a diagram illustrating the configuration of the rocker arm position limiting mechanism. [Figure 6] This is a diagram showing the configuration of the excitation mechanism. [Modes for carrying out the invention]

[0017] The following, along with the drawings of the embodiments of the present invention, clearly and completely describes the technical solutions in the embodiments of the present invention. Naturally, the embodiments described are only a part of the embodiments of the present invention and do not cover all embodiments.

[0018] In this description of the present invention, terms such as "up," "down," "front," "back," "left," "right," "up," "down," "inside," and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used for convenience and simplification of the description of the present invention. They do not suggest or imply that the devices or elements mentioned have a specific orientation or must be configured and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0019] Referring to Figures 1-6, the high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles comprises a machine base and a pipe formwork 8. The drive mechanism for the pipe formwork 8 is mounted on the machine base. The drive mechanism mainly consists of a motor, a reducer, a coupling, a device frame, a coupling cover, etc. The motor and the reducer are connected via a coupling, and the motor and the reducer are fixed to the machine base via bolts and nuts. A mobile material supply mechanism for supplying material into the pipe formwork 8 is provided at one end of the pipe formwork 8. The mobile material supply mechanism comprises a frame, rails 4 mounted on the frame, a mobile trolley 1 mounted on the rails 4, a hopper 2 mounted on the mobile trolley 1, and a screw conveyor 3 connected to the hopper 2. The screw conveyor 3 and rails 4 are arranged along the axis of the pipe formwork 8, one end of the screw conveyor 3 is connected to the discharge port at the bottom of the hopper 2, and the other end of the screw conveyor 3 has a discharge port that extends into the pipe formwork 8.

[0020] The tubular formwork 8 is provided with a roll pressing mechanism for pressing the concrete material, and an excitation mechanism for compacting the concrete material in cooperation with the roll pressing mechanism is installed on the machine pedestal. The roll pressing mechanism includes a pressing roll 8, an active end column mechanism provided at one end of the pressing roll 8, and a driven end column mechanism provided at the other end of the pressing roll 8. Both ends of the pressing roll 8 are respectively attached to the active end column mechanism and the driven end column mechanism. A cylindrical pressing roll body is provided on the pressing roll 8, and pressing roll sleeves 14 are attached to both ends of the pressing roll body. Both the active end column mechanism and the driven end column mechanism are provided with boxes 11 provided with doors. On one side of the door, a rocker arm 15 is connected to the box 11 by a hinge. An oil cylinder 26 for driving the rocker arm 15 is provided inside the box 11. The oil cylinder 26 is vertically arranged. The piston rod of the oil cylinder 26 is connected to the inner end of the rocker arm 15 by a hinge. The outer end of the rocker arm of the driven end column mechanism is connected to the pressing roll sleeve 14 through a claw mechanism. Also, the outer end of the rocker arm of the active end column mechanism is fixedly connected to the pressing roll sleeve 14.

[0021] The box of the active end column mechanism is provided with a rocker arm position limiting mechanism. The rocker arm position limiting mechanism includes a position upper limit seat 17 arranged above the rocker arm and a position lower limit seat 18 arranged below the rocker arm. A swing space for the rocker arm to swing up and down is provided between the position upper limit seat 17 and the position lower limit seat 18. The position upper limit seat 17 and the position lower limit seat 18 are fixed to the inner wall of the box. Adjusting bolts 19 for adjusting the vertical swing stroke of the rocker arm are respectively inserted and installed on the position upper limit seat and the position lower limit seat. A position limiting portion corresponding to the adjusting bolt is fixed to the inner end of the rocker arm.

[0022] The claw mechanism includes a fixed block 16 fixed to the outer end of the rocker arm and a movable block 13 fitted with the fixed block 16. A hydraulic cylinder 12 for driving the movable block is provided on the rocker arm 15.

[0023] The machine pedestal is provided with a safety protection mechanism for preventing the detachment of the tubular formwork, aiming to prevent the tubular formwork from coming off during emergencies and causing safety accidents. The safety protection mechanism includes two sets of pressure wheel assemblies arranged side by side along the axis of the tubular formwork. Each set of pressure wheel assemblies is provided with two pressure wheel mechanisms, and the two pressure wheel mechanisms are arranged on both sides of the tubular formwork. Each pressure wheel mechanism includes a pressure wheel 5 pressed against the outside of the tubular formwork, a swing arm 9 for mounting the pressure wheel 5, a support column for mounting the swing arm 9, and a drive cylinder 10 for driving the pressure wheel 5.

[0024] The excitation mechanism includes an excitation pedestal 20 and an excitation beam 21. Both ends of the excitation beam 21 are attached to the excitation pedestal 20 via an elastic mechanism. The excitation pedestal 20 is fixed to the machine pedestal. The excitation beam 21 is provided with a roll set 7 for supporting the tubular formwork, and the excitation pedestal 20 is provided with a height adjustment mechanism for adjusting the initial height of the excitation beam 21. The excitation mechanism mainly provides the excitation force required for the tubular formwork. The molding of concrete pipe piles requires the effect of vibration. Vibration disperses the concrete material evenly and improves the quality.

[0025] The elastic mechanism includes a spring arranged between the excitation pedestal and the excitation beam, and a positioning rod hinged to the excitation pedestal, passing through the spring and the excitation beam and extending upward. A gasket and a nut are attached to the upper end of the positioning rod.

[0026] The height adjustment mechanism includes an adjustment bracket 22 with one end fixed to the center of the excitation beam 21 and the other end hinged to the excitation pedestal 20. The excitation pedestal 20 is provided with a flexible rope 25 connected to the center of the adjustment bracket 22 for adjusting the height of the excitation beam. In addition, the excitation pedestal 20 is provided with a position limiting cylinder 27 cooperating with the flexible rope. The cylinder body of the position limiting cylinder 27 is fixed to the excitation pedestal 20, and a suspension hook 28 connected to the flexible rope is provided on the piston rod of the position limiting cylinder 27.

[0027] The above describes only preferred specific embodiments of the present invention, and the scope of protection of the present invention is not limited thereto. A person skilled in the art within the technical scope disclosed by the present invention may make equivalent substitutions or modifications based on the technical solutions and concepts of the present invention, and these should also be included within the scope of protection of the present invention. [Explanation of symbols]

[0028] 1- Mobile cart, 2- Hopper, 3- Screw conveyor, 4- Rail, 5- Pressure wheel, 6- Pipe formwork, 7- Roll assembly, 8- Crimping roll, 9- Swing arm, 10- Drive cylinder, 11- Box, 12- Hydraulic cylinder, 13- Movable block, 14- Crimping roll sleeve, 15- Rocker arm, 16- Fixed block, 17- Upper position seat, 18- Lower position seat, 19- Adjustment bolt, 20- Excitation table, 21- Excitation beam, 22- Adjustment bracket, 23- Positioning rod, 24- Spring, 25- Flexible rope, 26- Oil cylinder, 27- Position limiting cylinder, 28- Lifting hook.

Claims

1. A high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles, comprising a machine base, a pipe formwork for molding pipe piles, and a drive mechanism installed on the machine base for driving the pipe formwork, A movable material supply mechanism for supplying material into the tubular formwork is provided at one end of the tubular formwork, a roll pressurizing mechanism for compressing concrete material into the tubular formwork is provided, and an excitation mechanism for densely packing the concrete material in cooperation with the roll pressurizing mechanism is installed on the machine base. The roll pressurizing mechanism comprises a crimping roll, an active end support mechanism provided at one end of the crimping roll, and a driven end support mechanism provided at the other end of the crimping roll. Both ends of the crimping roll are attached to the active end support mechanism and the driven end support mechanism, respectively. The crimping roll has a cylindrical crimping roll body, and crimping roll sleeves are installed at both ends of the crimping roll body. The active end post mechanism and the driven end post mechanism each comprise a box with a door, a rocker arm provided on one side of the door, and an oil cylinder for driving the rocker arm provided inside the box, wherein the oil cylinder is vertically positioned, the piston rod of the oil cylinder is hinged to the inner end of the rocker arm, the outer end of the rocker arm of the driven end post mechanism is connected to the crimping roll sleeve via a claw mechanism, and the outer end of the rocker arm of the active end post mechanism is fixedly connected to the crimping roll sleeve. The excitation mechanism comprises an excitation table and an excitation beam, the ends of which are mounted on the excitation table via an elastic mechanism, the excitation table being fixed to the machine base, the excitation beam being provided with a roll assembly for supporting the tubular formwork, and the excitation table being provided with a height adjustment mechanism for adjusting the initial height of the excitation beam. A high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles, characterized by the following features.

2. The box of the active end post mechanism is provided with the rocker arm position limiting mechanism, and the rocker arm position limiting mechanism comprises an upper position seat positioned above the rocker arm and a lower position seat positioned below the rocker arm. A swing space is provided between the upper position seat and the lower position seat for the rocker arm to swing up and down, the upper position seat and the lower position seat are fixed to the inner wall of the box, an adjustment bolt for adjusting the up and down swing stroke of the rocker arm is inserted into and installed in the upper position seat and the lower position seat, and a position limiting part corresponding to the adjustment bolt is fixed to the inner end of the rocker arm, characterized in that a high-speed centrifugal molding machine for manufacturing large-diameter long pipe piles according to claim 1.

3. The claw mechanism comprises a fixed block fixed to the outer end of the rocker arm and a movable block that engages with the fixed block, and a hydraulic cylinder for driving the movable block is installed on the rocker arm, characterized in that the high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles is as described in claim 1.

4. The high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles according to claim 1, characterized in that the machine base is provided with a safety protection mechanism to prevent the pipe formwork from detaching.

5. The safety protection mechanism comprises two sets of pressure wheel assemblies arranged side by side along the axis of the pipe formwork, each set of pressure wheel assemblies is provided with two pressure wheel mechanisms, the two pressure wheel mechanisms are arranged on both sides of the pipe formwork, and each pressure wheel mechanism comprises a pressure wheel pressed against the top of the pipe formwork, a swing arm for attaching the pressure wheel, a support column for attaching the swing arm, and a drive cylinder for driving the pressure wheel, as described in claim 4, for high-speed centrifugal molding machine for manufacturing large-diameter long pipe piles.

6. The elastic mechanism includes a spring positioned between the excitation table and the excitation beam, and a positioning rod hinged to the excitation table, penetrating the spring and the excitation beam and extending upward, wherein a gasket and a nut are attached to the upper end of the positioning rod, making it a high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles according to claim 1.

7. The high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles according to claim 1, characterized in that the height adjustment mechanism includes an adjustment bracket, one end of the adjustment bracket is fixed to the center of the excitation beam, the other end of the adjustment bracket is hinged to the excitation table, and the excitation table is provided with a flexible rope connected to the center of the adjustment bracket for adjusting the height of the excitation beam.

8. The high-speed centrifugal molding machine for manufacturing large-diameter, long pipe piles according to claim 7, characterized in that a position-limiting cylinder that is linked to the flexible rope is provided on the excitation table, the cylinder body of the position-limiting cylinder is fixed on the excitation table, and the piston rod of the position-limiting cylinder is provided with a suspension hook that connects to the flexible rope.

9. The mobile material supply mechanism includes a frame, rails installed on the frame, a mobile trolley installed on the rails, and a hopper and a screw conveyor installed on the mobile trolley, wherein the screw conveyor and the rails are arranged along the axis of the pipe formwork, one end of the screw conveyor is connected to a discharge port at the bottom of the hopper, and the other end of the screw conveyor has a discharge port that extends into the pipe formwork, characterized in that the high-speed centrifugal molding machine for manufacturing large-diameter long pipe piles according to claim 1.

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