A self-leveller head travel system

Abstract

The utility model relates to an automatic trowel head walking system of trowel, its characterized in that: trowel frame beam, along the length direction parallel of trowel's frame beam is provided, is used for bearing trowel head, transverse linear guide rail subassembly, including linear guide rail and the slider cooperation of linear guide rail, linear guide rail installs in trowel frame beam's side, slider installs on trowel head, installs the drive unit of trowel head along linear guide rail direction horizontal movement of drive of trowel frame beam one end. Adopt above-mentioned technical scheme to improve the quality and efficiency of troweling operation, has reduced construction cost and difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of power trowel technology, and in particular relates to an automatic power trowel head walking system. Background Technology

[0002] In construction, industrial manufacturing, and other fields, surface smoothing of concrete is a crucial step in ensuring project quality and a smooth appearance. Automatic surface smoothing machines, as efficient and precise smoothing equipment, are widely used in various concrete construction scenarios, such as the production of precast concrete segments for large precast components like wind turbine towers. The machine head's travel system, as a core component, directly affects the efficiency, accuracy, and stability of the smoothing operation.

[0003] There are many problems that urgently need to be solved in the existing automatic trowel head walking technology. On the one hand, the traditional trowel head walking method often lacks a precise guidance and positioning mechanism. The head is prone to deviation and swaying during movement, resulting in poor flatness of the smoothed concrete surface, with defects such as wavy and uneven surfaces. This not only affects the quality of the project, but also requires a lot of repair work later, increasing construction costs and time.

[0004] On the other hand, the power trowel lacks effective radial positioning during movement. When faced with precast molds of different sizes and shapes, the machine head struggles to accurately perform the troweling operation at the designated location on the mold. Especially when the precast molds have special structures (such as contour rings) at both ends, the traditional travel system cannot effectively coordinate with the mold ends, causing the machine head to easily deviate from its track during movement.

[0005] To address the aforementioned issues, developing an efficient, precise, and stable automatic trowel head travel system is of significant practical importance. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides an automatic smoothing machine head walking system.

[0007] This utility model is implemented as follows: an automatic trowel head traveling system includes a trowel frame beam, which is arranged parallel to the length direction of the trowel frame beam to support the trowel head; a transverse linear guide rail assembly, including a linear guide rail and a slider that cooperates with the linear guide rail, wherein the linear guide rail is installed on the side of the trowel frame beam and the slider is installed on the trowel head; and a drive unit installed at one end of the trowel frame beam to drive the trowel head to move horizontally along the direction of the linear guide rail.

[0008] Preferably, the drive unit includes a transverse lead screw, which is installed parallel to the trowel frame beam; one end of the transverse lead screw is connected to a drive motor, which is used to provide a drive for the trowel head to move horizontally along the length of the trowel frame beam; and a transverse slider is connected to the trowel head, which is mounted on the transverse lead screw and is used to move horizontally along the trowel frame beam under the drive of the transverse lead screw.

[0009] Preferably, the sizing machine frame beam is provided with contoured walking wheel assemblies at both ends for abutting against the outer circumferential wall of the contoured ring at both ends of the precast mold frame to provide radial positioning; it also includes a longitudinal linear guide rail assembly arranged vertically, installed between the two ends of the sizing machine frame beam and the frame upright plate; for allowing the sizing machine frame beam to slide freely in the vertical direction relative to the frame upright plate, realizing overall lifting and floating.

[0010] Preferably, the contouring wheel assembly includes a wheel frame fixedly mounted on the screed frame beam, with wheels mounted on the lower end of the wheel frame.

[0011] Preferably, the outer side of the walking wheel is provided with a lateral positioning step.

[0012] The advantages and technical effects of this utility model are as follows: The automatic trowel head walking system supports the trowel head by setting a trowel frame beam, uses a transverse linear guide rail assembly to provide precise guidance for the head, and a drive unit to provide stable horizontal movement power. At the same time, contour walking wheel assemblies are set at both ends of the trowel frame beam, which cooperate with the contour rings at both ends of the precast mold frame to achieve radial positioning, effectively improving the quality and efficiency of troweling operations and reducing construction costs and difficulties. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the installation structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the installation structure of the trowel head and the trowel frame beam;

[0015] Figure 3 This is a schematic diagram of the frame beam structure of the power trowel;

[0016] Figure 4 and Figure 5 This is a schematic diagram of the installation structure of the drive unit and the trowel frame beam;

[0017] Figure 6 This is a diagram showing the usage state of this utility model;

[0018] Figure 7 This is a cross-sectional structural diagram of the utility model in use.

[0019] In the diagram: 1. Smoothing machine frame beam; 2. Smoothing machine head; 3. Lateral linear guide rail assembly; 31. Linear guide rail; 32. Slider; 4. Drive unit; 41. Lateral lead screw; 42. Drive motor; 43. Lateral slider; 5. Contouring wheel assembly; 51. Wheel frame; 52. Wheel; 53. Lateral positioning step; 6. Longitudinal linear guide rail assembly; 61. Longitudinal linear guide rail; 62. Longitudinal slider; 7. Frame beam; 71. Frame beam upright plate; 8. Precast mold frame; 81. Contouring ring. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 7 An automatic trowel head traveling system includes a trowel frame beam 1, which is arranged parallel to the length direction of the frame beam 7 of the trowel and is used to support the trowel head 2; a transverse linear guide rail assembly 3, including a linear guide rail 31 and a slider 32 that cooperates with the linear guide rail, wherein the linear guide rail is installed on the side of the trowel frame beam and the slider is installed on the trowel head; and a drive unit 4 installed at one end of the trowel frame beam to drive the trowel head to move horizontally along the direction of the linear guide rail.

[0022] The drive unit can employ chain, synchronous belt, or rack and pinion motion. This embodiment preferably uses the following technology: The drive unit 4 includes a transverse lead screw 41, mounted parallel to the trowel frame beam; one end of the transverse lead screw is connected to a drive motor 42, providing horizontal movement drive for the trowel head along the length of the trowel frame beam; a transverse slider 43 is connected to the trowel head and mounted on the transverse lead screw, used for horizontal movement along the trowel frame beam under the drive of the transverse lead screw. When the trowel head needs to move horizontally, the drive motor starts working. The drive motor is connected to one end of the transverse lead screw; when the drive motor rotates, it transmits power to the transverse lead screw; the transverse lead screw begins to rotate under the drive of the drive motor. Since the transverse slider is mounted on the transverse lead screw, according to the principle of lead screw transmission, the rotational motion of the transverse lead screw is converted into the linear motion of the transverse slider. The transverse slider is connected to the trowel head, so the linear motion of the transverse slider drives the trowel head to move horizontally along the linear guide rail installed on the side of the trowel frame beam. The cooperation between the linear guide rail and the slider provides precise guidance for the movement of the trowel head, ensuring that the trowel head can move smoothly and accurately to the designated position for troweling operations.

[0023] Preferably, the sizing machine frame beam is provided with contoured traveling wheel assemblies 5 at both ends, which abut against the outer circumferential walls of the contoured rings 81 at both ends of the precast mold frame 8 (in this embodiment, the precast mold frame is a precast concrete segment precast mold frame for wind power generation towers) to provide radial positioning; preferably, the contoured traveling wheel assembly includes a traveling wheel frame 51 fixedly installed on the sizing machine frame beam, and a traveling wheel 52 is installed at the lower end of the traveling wheel frame. Since the traveling wheel abuts tightly against the outer circumferential wall of the contoured ring, the shape and position of the contoured ring provide radial positioning for the sizing machine frame beam and the sizing machine head. This allows the sizing machine head to always maintain the correct radial position during horizontal movement, avoiding deviation and ensuring the accuracy and quality of the sizing operation. At the same time, a lateral positioning step 53 is provided on the outer side of the traveling wheel, which further enhances the positioning effect between the traveling wheel and the contoured ring and prevents the traveling wheel from sliding in the lateral direction.

[0024] It also includes a vertically arranged longitudinal linear guide rail assembly 6, installed between the two ends of the trowel beam and the frame upright plate; used to allow the trowel beam to slide freely in the vertical direction relative to the frame upright plate, realizing overall lifting and floating. The longitudinal linear guide rail assembly includes a longitudinal linear guide rail 61 and a longitudinal slider 62. The longitudinal linear guide rail is located at both ends of the trowel beam, and the longitudinal slider is installed on the frame beam upright plate 71 of the trowel. The cooperation of the longitudinal linear guide rail and the longitudinal slider allows the trowel beam to slide freely in the vertical direction relative to the frame upright plate. When the trowel encounters uneven ground or inconsistent concrete surface height during operation, the trowel beam can be adjusted vertically according to the actual situation. This lifting and floating function ensures that the trowel head always maintains appropriate contact pressure with the concrete surface, ensuring a uniform troweling effect, and also avoiding damage to the trowel caused by uneven ground or changes in concrete surface height.

[0025] 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. An automatic trowel head travel system, characterized in that: A trowel frame beam, arranged parallel to the length of the trowel's frame beam, is used to support the trowel head; a transverse linear guide rail assembly, including a linear guide rail and a slider that cooperates with the linear guide rail, wherein the linear guide rail is installed on the side of the trowel frame beam and the slider is installed on the trowel head; and a drive unit installed at one end of the trowel frame beam to drive the trowel head to move horizontally along the direction of the linear guide rail.

2. The automatic smoothing machine head travel system according to claim 1, characterized in that: The drive unit includes a transverse lead screw, which is installed parallel to the trowel frame beam; one end of the transverse lead screw is connected to a drive motor, which is used to provide horizontal movement drive of the trowel head along the length direction of the trowel frame beam; and a transverse slider is connected to the trowel head, which is mounted on the transverse lead screw and is used to move horizontally along the trowel frame beam under the drive of the transverse lead screw.

3. The automatic smoothing machine head travel system according to claim 1, characterized in that: The sizing machine frame beam is provided with contoured traveling wheel assemblies at both ends, which abut against the outer circumferential wall of the contoured ring at both ends of the precast mold frame to provide radial positioning; it also includes a longitudinal linear guide rail assembly arranged vertically, installed between the two ends of the sizing machine frame beam and the frame upright plate; it is used to allow the sizing machine frame beam to slide freely in the vertical direction relative to the frame upright plate, so as to realize the overall lifting and floating.

4. The automatic smoothing machine head travel system according to claim 3, characterized in that: The contour-following wheel assembly includes a wheel frame fixedly mounted on the trowel frame beam, with wheels mounted on the lower end of the wheel frame.

5. The automatic trowel head travel system according to claim 4, characterized in that: The outer side of the walking wheel is provided with a lateral positioning step.

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