A tilt angle adjusting device for a screed head assembly
By designing an angle adjustment device on the trowel, the trowel motor is driven to rotate around the hinge point, solving the problem that the trowel head assembly of the trowel cannot adapt to complex surfaces, achieving efficient and precise troweling results, and improving construction quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN YULONGHONGDA MASCH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-12
Smart Images
Figure CN224348021U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of troweling machines, and in particular relates to a tilt angle adjustment device for a troweling head assembly of a troweling machine. Background Technology
[0002] Power trowels are widely used for smoothing concrete surfaces, and the performance of their trowel assembly directly affects the smoothing effect and construction quality.
[0003] Traditional trowel assemblies are typically fixed in place, with the trowel motor operating at a constant angle. However, in actual construction, concrete surfaces often exhibit varying degrees of undulation, inclination, or unevenness. For example, in road construction, the roadbed may experience localized inclination due to geological conditions or construction errors; in building construction, different areas may have varying heights due to differences in construction techniques. Furthermore, the precast concrete segments of wind turbine towers are not uniform in diameter but rather have an inclined taper. Fixed-angle trowel assemblies cannot adapt to these complex and varied surface conditions. When working on inclined or uneven concrete surfaces, uneven troweling and ineffective troweling in certain areas can easily occur, resulting in poor concrete surface flatness and affecting subsequent construction procedures and the overall project quality.
[0004] To address these issues, some existing technologies have attempted to improve the trowel assembly, but most suffer from drawbacks such as complex adjustment methods, low adjustment accuracy, and poor stability. Some adjustment devices require manual operation, which is not only inefficient but also makes it difficult to guarantee the accuracy and consistency of the adjustment; while other devices achieve electric adjustment, their complex structure increases the cost and maintenance difficulty of the equipment, and they are prone to failure during long-term use, affecting the construction progress.
[0005] Therefore, developing a tilt adjustment device for a trowel assembly of a trowel machine that is simple in structure, easy to adjust, highly accurate, and stable is of great practical significance. Utility Model Content
[0006] In view of the problems existing in the prior art, this utility model provides a tilt angle adjustment device for a trowel assembly of a trowel machine.
[0007] This utility model is implemented as follows: a tilt angle adjustment device for a trowel head assembly of a troweling machine, comprising a vertical carriage base, characterized in that: it further comprises a tilt angle adjustment component hinged to the vertical carriage base; and a troweling motor disposed within the vertical carriage base, with the housing of the troweling motor connected to the tilt angle adjustment component; wherein, the tilt angle adjustment component is configured to drive the troweling motor to rotate about its hinge point with the vertical carriage base, so as to adjust the tilt angle of the troweling motor.
[0008] More preferably, the tilt adjustment assembly includes a left swing arm and a right swing arm fixedly mounted on a vertical carriage seat in the vertical direction.
[0009] The active swing arm and the driven swing arm are fixedly connected to the smoothing motor. The active swing arm and the driven swing arm are hinged on the vertical carriage seat through the support shaft.
[0010] The active swing arm extends vertically upward to the upper ends of the left and right swing frames. An active swing rod is provided at the upper end of the active swing arm in a vertical direction. The active swing rod is inserted into the elongated hinge hole of the hinge joint. The drive cylinder is connected to the active swing rod and drives the active swing arm to rotate around the hinge point.
[0011] More preferably, the hinged joint includes a T-shaped joint and a U-shaped joint. The other end of the T-shaped joint is connected to the left swing drive cylinder, which is fixedly installed on the left swing frame. The other end of the U-shaped joint is connected to the right swing drive cylinder, which is fixedly installed on the right swing frame.
[0012] In a further preferred embodiment, the upper ends of the left and right swing frames are provided with bending portions toward the smoothing motor, and a fixing plate is connected to the upper surface of the bending portions.
[0013] More preferably, the left swing frame and the right swing frame are an integral structure.
[0014] The advantages and technical effects of this utility model are as follows: The tilt adjustment device of the trowel head assembly of this trowel machine is hinged to the vertical slide seat by setting the tilt adjustment component, and the trowel motor housing is connected to the tilt adjustment component. It can drive the trowel motor to rotate around the hinge point, thereby effectively adjusting the tilt angle of the trowel motor to adapt to the troweling needs of concrete surfaces under different working conditions, and improve the quality and efficiency of troweling operations. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of an embodiment of this utility model.
[0017] In the diagram: 1. Vertical carriage seat; 2. Tilt adjustment assembly; 21. Left swing arm; 22. Right swing arm; 23. Active swing arm; 231. Active swing rod; 24. Driven swing arm; 25. Hinge joint; 251. T-joint; 252. U-joint; 26. Left swing drive cylinder; 27. Right swing drive cylinder; 28. Support shaft; 3. Smoothing motor. 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 Figure 1 and Figure 2 A tilt adjustment device for a trowel head assembly of a troweling machine includes a vertical carriage base 1, a tilt adjustment component 2 hinged to the vertical carriage base, and a troweling motor 3 disposed within the vertical carriage base, with the housing of the troweling motor connected to the tilt adjustment component; wherein the tilt adjustment component is configured to drive the troweling motor to rotate about its hinge point with the vertical carriage base to adjust the tilt angle of the troweling motor.
[0020] The tilt adjustment assembly 2 includes a left swing arm 21 and a right swing arm 22 fixedly mounted on a vertical carriage base 5423. A smoothing motor is fixedly connected to an active swing arm 23 and a driven swing arm 24. The active and driven swing arms are hinged within the vertical carriage base 5423 via a support shaft 28. The active swing arm 23 extends vertically upward to the upper ends of the left and right swing arms 21 and 22. An active swing rod 231 is provided vertically at the upper end of the active swing arm 23. The active swing rod 231 is inserted into an elongated hinge hole in the hinge joint 25. The hinge joint 25 includes a T-joint 251 and a U-joint 252. The other end of the T-joint 251 is connected to a left swing drive cylinder 26, which is fixedly mounted on the left swing arm 21. The other end of the U-joint 252 is connected to a right swing drive cylinder 27, which is fixedly mounted on the right swing arm 22. Driven by the left swing drive cylinder 26 and the right swing drive cylinder 27, the active swing arm 23 and the driven swing arm 24 swing, which in turn drives the smoothing motor 543 and the grinding disc 544 to swing, so as to adapt to the smoothing operation of concrete pipe segments with different curvatures.
[0021] In a further preferred embodiment, the upper ends of the left and right swing frames are provided with bent portions towards the smoothing motor, and a fixing plate is connected to the upper surface of the bent portions. In this design, the bent portions and fixing plates at the upper ends of the left and right swing frames enhance the structural strength and stability, providing more stable support for related components.
[0022] Preferably, the left and right swing frames are an integral structure. This integral structure reduces assembly steps, lowers structural complexity, improves overall reliability, and helps ensure the stable operation of the tilt adjustment device.
[0023] Working principle: The left swing drive cylinder 26 and the right swing drive cylinder 27 drive the active swing arm 23 and the driven swing arm 24 to swing, which in turn drives the smoothing motor 543 and the grinding disc 544 to swing and rotate around the support shaft 28. This allows the grinding disc 544 to better adapt to concrete pipe segments with different curvatures, thereby achieving more precise smoothing operations. The addition of the angle adjustment component greatly improves the smoothing machine's adaptability to concrete pipe segments with different curvatures, making the smoothing operation more precise and efficient, and improving the smoothing quality.
[0024] 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 tilt adjustment device for a trowel head assembly of a troweling machine, comprising a vertical carriage base, characterized in that: It also includes a tilt adjustment assembly hinged to the vertical carriage base; and a smoothing motor disposed within the vertical carriage base, with the housing of the smoothing motor connected to the tilt adjustment assembly; wherein the tilt adjustment assembly is configured to drive the smoothing motor to rotate about its hinge point with the vertical carriage base to adjust the tilt angle of the smoothing motor.
2. The tilt angle adjustment device for the trowel head assembly of the troweling machine according to claim 1, characterized in that: The tilt adjustment assembly includes a left swing arm and a right swing arm that are fixedly mounted on a vertical carriage seat in the vertical direction. The active swing arm and the driven swing arm are fixedly connected to the smoothing motor. The active swing arm and the driven swing arm are hinged on the vertical carriage seat through the support shaft. The active swing arm extends vertically upward to the upper ends of the left and right swing frames. An active swing rod is provided at the upper end of the active swing arm in a vertical direction. The active swing rod is inserted into the elongated hinge hole of the hinge joint. The drive cylinder is connected to the active swing rod and drives the active swing arm to rotate around the hinge point.
3. The tilt angle adjustment device for the trowel head assembly of the troweling machine according to claim 2, characterized in that: The hinged joint includes a T-shaped joint and a U-shaped joint. The other end of the T-shaped joint is connected to the left swing drive cylinder, which is fixedly installed on the left swing frame. The other end of the U-shaped joint is connected to the right swing drive cylinder, which is fixedly installed on the right swing frame.
4. The tilt angle adjustment device for the trowel head assembly of the troweling machine according to claim 2, characterized in that: The upper ends of the left and right swing frames are provided with bending sections towards the smoothing motor, and a fixing plate is connected to the upper surface of the bending section.
5. The tilt angle adjustment device for the trowel head assembly of the troweling machine according to claim 2, characterized in that: The left and right swing frames are an integral structure.