A turnover anti-warping mechanism for a trowel

Abstract

The utility model relates to a kind of turnover type anti-warping mechanisms for screed machine, which is installed on the frame vertical plate of the both ends of screed machine frame beam;The turnover type anti-warping mechanism includes a turnover drive cylinder fixedly installed on the frame vertical plate, the piston rod connecting end of the turnover drive cylinder is connected with a turnover drive link assembly, the turnover drive link assembly is connected with a turnover drive arm, an anti-turnover frame is installed on the turnover drive arm, a rolling member is installed on the anti-turnover frame, and the rolling member is attached to the outer edge lower surface of the mold frame during screeding operation.The above technical solution can effectively prevent the screed machine from tilting on one side, improving the quality and safety of the screeding operation.

Description

Technical Field

[0001] This utility model belongs to the field of troweling machine technology, and in particular relates to a flip-type anti-tilting mechanism for troweling machines. Background Technology

[0002] In construction, industrial manufacturing, and other fields, trowels are widely used for smoothing the surfaces of materials such as concrete, for example, the surface treatment of precast concrete segments for wind turbine towers. The quality of the smoothing operation directly affects the quality and safety of subsequent projects, thus requiring high stability and operational precision from the trowel.

[0003] During existing trowel operations, various factors can cause the trowel to tilt up on one side. Firstly, uneven weight distribution or uneven external forces acting on the trowel during operation, such as when troweling concrete areas of varying thicknesses or hardness, can lead to uneven reaction forces on one side, causing it to tilt. Secondly, imperfections in the flatness of the formwork or encountering uneven ground or obstacles during movement can also cause one side of the trowel to lose balance and tilt.

[0004] A trowel tilting to one side can cause several serious problems. First, it severely affects the quality of the troweling operation. The tilted side cannot fully contact the concrete surface, resulting in poor troweling in that area, causing unevenness and bumps, and affecting the overall smoothness and evenness of the concrete surface. Second, it increases the risk of wear and damage to the equipment. When the trowel is tilted, some components will be subjected to abnormal stress and friction, accelerating component aging and damage, shortening the equipment's lifespan, and increasing maintenance costs. Furthermore, it can lead to safety accidents. A tilted trowel may suddenly lose control during operation, causing injury to the operator or threatening other equipment and personnel in the vicinity.

[0005] Therefore, developing a simple and adaptable flip-type anti-warping mechanism for troweling machines is of great practical significance. Utility Model Content

[0006] In view of the problems existing in the prior art, this utility model provides a flip-type anti-tilting mechanism for a smoothing machine.

[0007] This utility model is implemented as follows: a flip-type anti-tilting mechanism for a troweling machine, characterized in that: the flip-type anti-tilting mechanism is installed on the frame uprights at both ends of the frame beam of the troweling machine; the flip-type anti-tilting mechanism includes a flip-type drive cylinder fixedly installed on the frame uprights, the piston rod connecting end of the flip-type drive cylinder is connected to a flip-type drive linkage assembly, the flip-type drive linkage assembly is connected to a flip-type drive arm, an anti-tilting frame is installed on the flip-type drive arm, and a rolling component is installed on the anti-tilting frame. During the troweling operation, the rolling component is in contact with the lower surface of the outer edge of the mold frame.

[0008] A further preferred embodiment includes a first link and a second link coaxially hinged to the piston rod end of the tilting drive cylinder, with the other end of the first link hinged to the frame upright plate; the other end of the second link is hinged to a tilting drive arm, which is also hinged to the frame upright plate.

[0009] More preferably, an anti-tilting frame is fixedly connected to the horizontal support seat of the flipping drive arm, and a rolling member is installed on the anti-tilting frame, the rolling member being in contact with the lower surface of the outer edge of the mold frame.

[0010] More preferably, the anti-tilting frame is hinged to the horizontal support seat of the tilting drive arm, and the anti-tilting frame is provided with 2 to 4 roller support arms along the circumferential direction. The anti-tilting frame is equipped with rolling members, and at least one rolling member is in contact with the lower surface of the outer edge of the mold frame.

[0011] More preferably, the rolling component is a ball or a roller.

[0012] The advantages and technical effects of this utility model are as follows: This flip-type anti-tilting mechanism is installed on the frame uprights at both ends of the frame beam of the trowel. By utilizing the synergistic effect of the flip drive cylinder, flip drive linkage assembly, flip drive arm, anti-tilting frame and rolling component, the rolling component is made to fit against the lower surface of the outer edge of the mold frame during the troweling operation. This can effectively prevent the trowel from tilting up on one side as a whole, and improve the quality and safety of the troweling operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the tilting drive cylinder in the extended state of this utility model;

[0014] Figure 2 This is a schematic diagram of the retracted state structure of the utility model's tilting drive cylinder;

[0015] Figure 3 This is a schematic diagram of the working state of the power trowel;

[0016] Figure 4 This is a schematic diagram of the structure of the trowel during initial installation or disassembly.

[0017] 1. Smoothing machine frame beam; 2. Frame upright plate; 3. Tilting anti-tilting mechanism; 31. Tilting drive cylinder; 32. Tilting drive linkage assembly; 321. First linkage; 322. Second linkage; 33. Tilting drive arm; 331. Horizontal support seat; 34. Anti-tilting frame; 35. Rolling component; 4. Mold frame. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1 to 4 A tilting anti-tilting mechanism for a trowel is disclosed. The tilting anti-tilting mechanism is installed on the frame uprights 2 at both ends of the frame beam 1 of the trowel. The tilting anti-tilting mechanism 3 includes a tilting drive cylinder 31 fixedly installed on the frame upright. The piston rod of the tilting drive cylinder is connected to a tilting drive linkage assembly 32. The tilting drive linkage assembly is connected to a tilting drive arm 33. An anti-tilting frame 34 is installed on the tilting drive arm. A rolling member 35 is installed on the anti-tilting frame. During the troweling operation, the rolling member is in contact with the lower surface of the outer edge of the mold frame 4 (taking the prefabrication of a wind power generation tower as an example in this application). The rolling member is a ball bearing or a roller. In this embodiment, a ball bearing is preferred.

[0020] A further preferred embodiment of the tilting drive linkage assembly 32 includes a first link 321 and a second link 322 coaxially hinged to the piston rod end of the tilting drive cylinder. The other end of the first link is hinged to the frame upright plate; the other end of the second link is hinged to the tilting drive arm 33, which is also hinged to the frame upright plate. This design converts the linear motion of the tilting drive cylinder into the rotational motion of the tilting drive arm. It features a simple structure and stable transmission, allowing for precise control of the tilting drive arm's movement. This ensures the anti-tilting frame accurately reaches the position where it contacts the lower surface of the outer edge of the mold frame, effectively preventing the smoothing machine from tilting up on one side.

[0021] Preferably, an anti-tilting frame 34 is fixedly connected to the horizontal support 331 of the tilting drive arm 33. A rolling member 35 is installed on the anti-tilting frame, and the rolling member is in contact with the lower surface of the outer edge of the mold frame. This fixed connection method provides a stable structure. During the smoothing operation, the force on the smoothing machine can be reliably transmitted to the tilting drive arm through the anti-tilting frame, thereby distributing it throughout the entire mechanism, enhancing its stability, effectively resisting the tendency of the smoothing machine to tilt to one side, and ensuring the smoothing operation proceeds smoothly.

[0022] More preferably, the anti-tilting frame 34 is hinged to the horizontal support seat 331 of the tilting drive arm. The anti-tilting frame has 2 to 4 roller support arms along its circumference, and a rolling member 35 is installed on it, with at least one rolling member in contact with the lower surface of the outer edge of the mold frame. This design is suitable when the lower surface of the outer edge of the mold frame may have stiffeners or other components, and a fixed anti-tilting frame would obstruct the movement of the trowel. The hinged design allows the anti-tilting frame to rotate automatically, flexibly overcoming these obstacles during the movement of the trowel, ensuring smooth operation, improving troweling efficiency, and reducing the risk of equipment damage due to collisions.

[0023] Working principle:

[0024] When the smoothing machine is first installed on the mold frame: the tilting drive cylinder is in its initial state, at which point the anti-tilt frame and the rolling components mounted on it are not in contact with the lower surface of the outer edge of the mold frame. The operator starts the tilting drive cylinder, and the piston rod of the tilting drive cylinder begins to extend. Since the piston rod of the tilting drive cylinder is connected to the tilting drive linkage assembly, when the piston rod extends, it drives the first and second linkages to move. One end of the first linkage is coaxially hinged to the end of the piston rod, and the other end is hinged to the frame upright plate. One end of the second linkage is coaxially hinged to the end of the piston rod, and the other end is hinged to the tilting drive arm, which is also hinged to the frame upright plate. Under the linkage of the first and second linkages, the tilting drive arm rotates around its hinge point with the frame upright plate. The horizontal support seat on the tilting drive arm also rotates accordingly, thereby driving the anti-tilt frame fixedly connected to the horizontal support seat to move. Because the anti-rollover frame is hinged to the horizontal support base, it adjusts its posture, causing the rolling component mounted on it to gradually approach the lower surface of the outer edge of the mold frame until the rolling component is in close contact with the lower surface of the outer edge of the mold frame. At this point, during the smoothing operation, if the smoothing machine shows a tendency to tilt up on one side, the rolling component will be subjected to the reaction force from the lower surface of the outer edge of the mold frame. This force is transmitted to the tilting drive cylinder through components such as the anti-rollover frame, the tilting drive arm, and the tilting drive linkage assembly. Utilizing the supporting effect of the tilting drive cylinder and the entire mechanism, the smoothing machine is effectively prevented from tilting up on one side, ensuring the stability and quality of the smoothing operation.

[0025] When the power smoother needs to be removed from the mold frame: the operator controls the tilting drive cylinder, causing the piston rod to retract. The retraction of the piston rod drives the first and second connecting rods to move in opposite directions, which in turn causes the tilting drive arm to rotate in the opposite direction about its hinge point with the frame upright. The horizontal support on the tilting drive arm rotates in the opposite direction, causing the anti-tilt frame to move, gradually moving the rolling component on the anti-tilt frame away from the lower surface of the outer edge of the mold frame until the rolling component disengages from the lower surface of the outer edge of the mold frame. At this point, the power smoother is no longer restricted by the tilting anti-tilt mechanism and can be smoothly removed from the mold frame.

[0026] 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 flip-type anti-tilting mechanism for a smoothing machine, characterized in that: The flip-type anti-tilting mechanism is installed on the frame plates at both ends of the frame beam of the troweling machine; the flip-type anti-tilting mechanism includes a flip-drive cylinder fixedly installed on the frame plate, the piston rod of the flip-drive cylinder is connected to the flip-drive linkage assembly, the flip-drive linkage assembly is connected to the flip-drive arm, the flip-drive arm is equipped with an anti-tilting frame, and the anti-tilting frame is equipped with a rolling component. During the troweling operation, the rolling component is in contact with the lower surface of the outer edge of the mold frame.

2. The flip-type anti-warping mechanism for a smoothing machine according to claim 1, characterized in that: The tilting drive linkage assembly includes a first link and a second link that are coaxially hinged to the piston rod end of the tilting drive cylinder. The other end of the first link is hinged to the frame upright plate. The other end of the second link is hinged to the tilting drive arm, which is also hinged to the frame upright plate.

3. The flip-type anti-warping mechanism for a smoothing machine according to claim 1, characterized in that: An anti-rollover frame is fixedly connected to the horizontal support seat of the flipping drive arm. A rolling component is installed on the anti-rollover frame, and the rolling component is in contact with the lower surface of the outer edge of the mold frame.

4. The flip-type anti-warping mechanism for a smoothing machine according to claim 1, characterized in that: The anti-tilting frame is hinged to the horizontal support seat of the flipping drive arm. The anti-tilting frame is provided with 2 to 4 roller support arms along the circumferential direction. The anti-tilting frame is equipped with rolling members, and at least one rolling member is in contact with the lower surface of the outer edge of the mold frame.

5. The flip-type anti-tilting mechanism for a smoothing machine according to any one of claims 1 to 4, characterized in that: The rolling component is a ball or a roller.

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