A profile following unit for an automatic screed

Abstract

The utility model relates to a kind of profiled walking units for automatic trowel, it is characterized by: including profiled walking frame, connection in trowel head;Two ends of the profiled walking frame are installed on trowel frame beam by linear guide rail, profiled supporting wheel is installed at the two ends of profiled walking frame, for abutting to the outer circumferential wall of profiled ring in the two ends of concrete member prefabricated mould frame, to provide radial positioning;Still including walking driving device, it is installed in the two ends of the frame beam, for driving the profiled walking frame along concrete member prefabricated mould frame walking.The profiled walking unit for automatic trowel of concrete member prefabricated mould frame of the utility model, by the cooperation of profiled walking frame and profiled supporting wheel, radial positioning is realized, and the stability of walking is guaranteed;And walking driving device provides power support for walking.The whole unit structure is compact, reliable in operation, can effectively improve the working efficiency and troweling quality of automatic trowel, with significant application value and market prospect.

Description

Technical Field

[0001] This utility model belongs to the field of precast concrete component processing technology, and in particular relates to a contour-following walking unit for an automatic troweling machine. Background Technology

[0002] In the field of construction engineering, precast concrete components are widely used due to their advantages such as high efficiency and controllable quality. As a key piece of equipment in the production of precast concrete components, the surface flatness of the precast concrete formwork directly affects the quality and subsequent performance of the components.

[0003] For example, precast concrete wind turbine towers can replace traditional steel wind turbine towers. These towers are usually assembled on-site from several arc-shaped precast concrete segments. They have advantages such as the ability to source materials locally, relatively low material costs, high rigidity, good stability, convenient transportation (segmented transportation), and corrosion resistance, making them particularly suitable for the needs of large-scale and ultra-high-rise wind turbine units.

[0004] However, the use of precast concrete towers also brings new manufacturing challenges. After the concrete segments are cast in molds, their exposed surfaces (usually the outer curved surfaces) need to be smoothed and finished to achieve the required flatness, smoothness, and density. This is crucial for the tower's durability, appearance quality, and the adhesion of subsequent anti-corrosion coatings. Currently, this critical surface treatment process mainly relies on manual labor. Workers use hand-held trowels to work on the surface of the freshly cast concrete segments.

[0005] Traditional power trowels typically use simple tracks or pulleys for movement, lacking effective positioning and guidance mechanisms. When working on precast concrete formwork, minor unevenness or deformation on the formwork surface can cause the traditional movement method to deviate from the intended path, making it difficult to precisely follow the planned path for smoothing. This results in poor smoothing performance and makes it difficult to achieve the desired flatness of the formwork surface.

[0006] With the increasing demands for quality in the large-scale precast concrete industry, there is an urgent market need for an automatic troweling machine with a contour-following walking unit that can adapt to the characteristics of precast concrete formwork, move stably, and position accurately.

[0007] This utility model discloses an automatic troweling machine with a precast concrete component mold, which uses a unique structural design to organically combine the contouring walking frame with a linear guide rail, contouring support wheels, and a walking drive device. This enables the contouring walking frame to move stably and be precisely positioned on the precast concrete component mold, effectively solving the problems existing in the prior art and providing strong support for improving the troweling quality and production efficiency of precast concrete component molds. Utility Model Content

[0008] In view of the problems existing in the prior art, this utility model provides a contour walking unit for an automatic smoothing machine.

[0009] This utility model is implemented as follows: a contour walking unit for an automatic troweling machine, characterized in that: it includes a contour walking frame connected to the troweling machine head; both ends of the contour walking frame are mounted on the frame beam of the troweling machine via linear guide rails; contour support wheels are installed at both ends of the contour walking frame to abut against the outer circumferential wall of the contour ring at both ends of the precast concrete component mold to provide radial positioning; it also includes a walking drive device installed at both ends of the frame beam to drive the contour walking frame to walk along the precast concrete component mold.

[0010] Further preferably, it also includes a set of walking wheels, which are installed at both ends of the frame beam to support the trowel machine to travel along the precast formwork of the concrete component;

[0011] More preferably, the walking drive device includes: a drive motor mounted on the frame upright of the trowel frame beam; a drive sprocket mounted on the output end of the drive motor; and a chain laid on the arc-shaped outer side of the precast concrete component formwork; wherein the drive sprocket meshes with the chain.

[0012] More preferably, the drive sprocket is a double-row sprocket, and the chain that works with it is a double-row roller chain.

[0013] The advantages and technical effects of this utility model are as follows: This utility model relates to a contour walking unit for an automatic trowel that follows the precast formwork of concrete components, which aims to provide stable and precise walking support for the automatic trowel, ensuring high efficiency and high quality of troweling operations.

[0014] The core structure of this contour-following walking unit includes a contour-following walking frame, which is tightly connected to the trowel head. The two ends of the contour-following walking frame are cleverly mounted on the trowel frame beam via linear guide rails. These linear guide rails allow the contour-following walking frame to move freely up and down without power, ensuring uniform and consistent troweling operations. Contouring support rollers are specially installed at both ends of the contour-following walking frame. These support rollers have a unique function: they can tightly abut against the outer circumferential wall of the contour-following ring at both ends of the precast concrete component mold. This abutment method provides reliable radial positioning for the contour-following walking frame, ensuring that it does not deviate during movement and always runs along the predetermined trajectory.

[0015] In addition to the contour-following walking frame, this unit is also equipped with a travel drive unit. The travel drive unit is installed at both ends of the frame beam, and it is powerful and stable in operation. During operation, the travel drive unit can precisely drive the contour-following walking frame along the precast formwork of the concrete component. By precisely controlling the speed and direction of the travel drive unit, the contour-following walking frame can drive the trowel head to perform troweling operations according to a predetermined path and rhythm.

[0016] In summary, the contour-following walking unit for an automatic trowel that moves with the precast concrete formwork of this invention achieves radial positioning and ensures walking stability through the cooperation of the contour-following walking frame and the contour-following support wheels; while the walking drive device provides power support for walking. The entire unit has a compact structure and reliable operation, which can effectively improve the working efficiency and troweling quality of the automatic trowel, and has significant application value and market prospects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the trowel frame beam;

[0019] Figure 3 This is a schematic diagram of the installation structure of the contour-following walking frame;

[0020] Figure 4 This is a schematic diagram of the walking drive device.

[0021] Figure 5 This is a diagram showing the usage state of this utility model.

[0022] In the diagram: 1. Contouring walking frame; 11. Contouring support wheel; 12. Linear guide rail; 2. Smoothing machine head; 3. Smoothing machine frame beam; 31. Frame upright plate; 4. Concrete component precast mold frame; 41. Contouring ring; 5. Walking drive device; 51. Drive motor; 52. Drive sprocket; 53. Chain; 6. Walking wheel set. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0024] Please see Figures 1 to 5An automatic troweling machine's contour-following walking unit includes a contour-following walking frame 1, which serves as the core load-bearing structure and connects to the troweling head. This provides a stable support platform for the troweling operation, ensuring the accurate positioning of the troweling head during operation, guaranteeing the stability and precision of the troweling work, and improving the troweling quality. The contour-following walking frame 1 is connected to the troweling head 2, which directly performs the troweling operation. After connecting to the contour-following walking frame, it can move with the frame to perform troweling on the surface of the precast concrete component. Both ends of the contour-following walking frame are mounted on the troweling machine's frame beam 3 via linear guide rails 12. These linear guide rails enable the contour-following walking frame to move freely up and down in a direction perpendicular to the troweling machine's frame beam 3 without power intervention, thus effectively ensuring the uniformity and consistency of the troweling operation. Contouring support wheels 11 are installed at both ends of the contouring walking frame to abut against the outer circumferential walls of the contouring rings 41 at both ends of the precast concrete component formwork 4, providing radial positioning for the contouring walking frame and preventing it from deviating from the predetermined trajectory during movement, ensuring that the smoothing operation is carried out along the correct path; it also includes a walking drive device 5, which is installed at both ends of the frame beam to drive the contouring walking frame to move along the precast concrete component formwork, providing walking power for the contouring walking frame, driving it to move along the precast concrete component formwork, realizing automatic smoothing operation, reducing manual operation, and improving work efficiency and work safety.

[0025] The aforementioned precast concrete formwork serves as a contour track, providing a working object for the smoothing operation. The contour rings at both ends cooperate with the contour support wheels to provide a positioning reference for the contour walking frame, enabling the smoothing operation to adapt to the shape of the formwork and ensuring that the smoothing effect meets the design requirements.

[0026] Further preferably, it also includes a set of walking wheels 6, which are installed at both ends of the frame beam to support the trowel machine to walk along the precast concrete component formwork 4; to provide reliable load-bearing support for the trowel machine, distribute the weight of the equipment, reduce the load on the walking drive device, enhance the stability of the equipment's movement, and enable the trowel machine to move smoothly on the precast concrete component formwork, ensuring the smoothing operation is carried out smoothly.

[0027] More preferably, the walking drive device 5 includes: a drive motor 51, mounted on the frame upright plate 31 of the trowel's frame beam; a drive sprocket 52, mounted on the output end of the drive motor; and a chain 53, laid on the arc-shaped outer side of the precast concrete component mold 4; wherein the drive sprocket meshes with the chain. This converts motor power into the trowel's walking power, resulting in a simple structure and efficient transmission, achieving automatic walking.

[0028] More preferably, the drive sprocket is a double-row sprocket, and the chain it meshes with is a double-row roller chain. This increases the transmission contact area, improves the smoothness of power transmission, distributes load stress, reduces the risk of wear and breakage, enhances adaptability to the arc-shaped transition section of the mold frame, and ensures uniform smoothing operation.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A contour-following walking unit for an automatic leveling machine, characterized in that: It includes a contouring walking frame connected to the trowel head; the two ends of the contouring walking frame are mounted on the frame beam of the trowel via linear guide rails, and contouring support wheels are installed at both ends of the contouring walking frame to abut against the outer circumferential wall of the contouring ring at both ends of the precast concrete component frame to provide radial positioning. It also includes a walking drive device, which is installed at both ends of the frame beam to drive the contour walking frame to walk along the precast formwork of the concrete component.

2. The contour-following walking unit for the automatic smoothing machine according to claim 1, characterized in that: It also includes a set of wheels, which are installed at both ends of the frame beam to support the trowel machine as it moves along the precast formwork of the concrete component.

3. The contour-following walking unit for the automatic smoothing machine according to claim 1, characterized in that: The walking drive device includes: a drive motor, mounted on the frame upright plate of the trowel frame beam; a drive sprocket, mounted on the output end of the drive motor; and a chain, laid on the arc-shaped outer side of the precast concrete component formwork; wherein the drive sprocket meshes with the chain.

4. The contour-following walking unit for the automatic smoothing machine according to claim 3, characterized in that: The drive sprocket is a double-row sprocket, and the chain that works with it is a double-row roller chain.

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