A trowel and method of use thereof

Abstract

The application relates to a troweling machine and a using method thereof, and relates to the field of troweling machines, which comprises a main frame, a troweling device arranged in the main frame and used for troweling work on a concrete ground, a troweling disc support connected between the main frame and the troweling device, and a troweling disc floating adjusting device installed between the main frame, the troweling device and the troweling disc support, wherein the troweling disc floating adjusting device comprises a floating suspension mechanism, a positive angle adjusting mechanism and a height adjusting mechanism. By arranging the floating suspension mechanism on the troweling device, the troweling device can be self-adaptively adjusted according to the flatness of the ground, so that the whole machine can meet the construction ground in different states, the adaptability of construction and the flatness of the ground after construction are improved, the working strength of repeated troweling is reduced, and the like. Meanwhile, by arranging the positive angle adjusting mechanism, the initial angle of the troweling device before work can be adjusted and set, so that the troweling device can be quickly and efficiently put into troweling work, and the like.

Description

Technical Field

[0001] The present invention relates to the field of trowel machines, and in particular to a trowel machine and a method for using the trowel machine. Background Art

[0002] A trowel machine is also called a finishing machine. It is a troweling machine that mainly uses a gasoline engine or other driving device to drive a trowel disc, trowel or other troweling devices to perform coarse grinding, fine grinding and other operations on the concrete surface. The concrete surface polished by it is not only smoother and flatter than the manually polished concrete surface, but also can greatly improve the density and wear resistance of the concrete surface. It is widely used in the slurry preparation, leveling and polishing of concrete surfaces in high-standard factories, warehouses, parking lots, squares, airports, frame buildings and other construction sites.

[0003] At present, trowels are mainly divided into two types: hand-push trowels and ride-on trowels. Among them, the ride-on trowel, as the name suggests, is a trowel with a driving seat on the main body. When in use, the user can sit in the driving seat and use the operating handle to cooperate with the corresponding drive device to drive the trowel device of the trowel to perform operations such as troweling on the concrete surface. At the same time, the trowel can be driven by the corresponding drive device to move autonomously. Compared with hand-push trowels and manual troweling, it has the advantages of saving manpower, easy to move and higher efficiency.

[0004] However, existing ride-on trowels also have some problems. For example, their trowel devices are usually directly connected to the driving device. Although the trowel device can be driven by the driving device to rotate and trowel, this also makes it impossible to adjust the trowel device, such as angle adjustment, making it unable to adapt to the construction needs of different stages and different site surfaces. For example, when troweling on undulating and uneven surfaces, the effect is poor, or the troweling operation needs to be repeated, which not only increases working time and intensity, but also causes poor flatness of the ground after the troweling operation. There are certain shortcomings. Summary of the Invention

[0005] Purpose of the invention: In view of the above shortcomings, the present invention provides a trowel and a method of using the same to solve the above problems existing in the prior art.

[0006] Technical solution: A trowel machine and its use method, including a main frame, a trowel device arranged in the main frame for troweling concrete floors, a trowel plate bracket connected between the main frame and the trowel device, and a trowel plate floating adjustment device installed between the main frame, the trowel device and the trowel plate bracket, wherein the trowel plate floating adjustment device includes a floating suspension mechanism, an active angle adjustment mechanism and a height adjustment mechanism.

[0007] Among them, the floating suspension mechanism includes an adaptive swivel seat installed between the main frame and the wiping plate bracket, and two groups of mechanical limiting components arranged on the outside of the adaptive swivel seat for limiting the swing angle of the adaptive swivel seat. The active angle adjustment mechanism includes a number of electric telescopic cylinders installed at predetermined intervals and angles between the main frame and the wiping plate bracket. The height adjustment mechanism is installed between the wiping plate bracket and the trowel device. The adaptive swivel seat is used for the trowel device to adaptively adjust the angle of the ground. The active angle adjustment mechanism is used to cooperate with the adaptive swivel seat to fine-tune the angle adjustment of the trowel device. The height adjustment mechanism is used to fine-tune the height of the trowel device.

[0008] In a further embodiment, it also includes a driver's seat, an operating device and a power drive device.

[0009] Among them, the driver's seat is installed on the main frame for the operator to sit on, the operating device is installed on one side of the main frame for the operator to perform hand-held operation, and the power drive device is arranged in the main frame and connected to the operating device and the polishing device, and is used to drive the entire equipment to work.

[0010] In a further embodiment, the floating suspension mechanism further includes a damper.

[0011] There are several dampers, which are installed between the main frame and the wiping plate bracket at a predetermined angle and spacing to provide damping and reduce the vibration of the trowel device. The adaptive swivel seat is a ball hinge and the damper is a nitrogen spring.

[0012] In a further embodiment, the damper and the electric telescopic cylinder are hinged to the main frame and the wiper bracket through a Hooke's hinge, and the damper and the electric telescopic cylinder are symmetrically arranged in two groups, and the two groups of dampers and the two groups of electric telescopic cylinders are spaced apart and arranged on the outside of the adaptive swivel seat.

[0013] In a further embodiment, the active angle adjustment mechanism further includes a tilt sensor.

[0014] The inclination sensor is embedded in the middle of the trowel bracket to provide feedback on the status of the trowel device and cooperate with the electric telescopic cylinder to actively adjust the angle of the trowel device.

[0015] In a further embodiment, the height adjustment mechanism includes a connecting inner column and a connecting outer column.

[0016] Among them, the connecting inner column is connected to the side of the wiping plate bracket away from the main frame, the connecting outer column is slidably arranged at the end of the connecting inner column close to the trowel device and is connected to the trowel device, and a height adjustment spring is arranged between the connecting inner column and the connecting outer column, which is used for the connecting inner column to cooperate with the connecting outer column to adjust the height of the trowel device.

[0017] In a further embodiment, the height adjustment mechanism further includes a connecting plate, an adjustment cylinder and a distance sensor.

[0018] Among them, the connecting plate is connected to the connecting outer column, the adjusting cylinder is installed on the wiping plate bracket and the driving end is connected to the connecting plate, which is used to adjust the height of the polishing device, and the ranging sensor is embedded on the outer wall of the wiping plate bracket, which is used to feedback the status of the polishing device and cooperate with the adjusting cylinder to actively adjust the height of the polishing device.

[0019] In a further embodiment, the mechanical limiting component includes an L-shaped mounting bracket, an arc-shaped limiting block, a connecting adjustment column and a locking positioning pin.

[0020] In which, the L-shaped mounting bracket is installed on the main frame, the arc-shaped limit block is arranged on a side of the L-shaped mounting bracket close to the adaptive swivel seat, and a predetermined distance is set between the arc-shaped limit block and the adaptive swivel seat, for limiting the swing angle of the adaptive swivel seat, the connection adjustment column is slidingly connected to the L-shaped mounting bracket and fixedly connected to the arc-shaped limit block, for adjusting the distance between the arc-shaped limit block and the adaptive swivel seat, and the locking positioning pin is installed on the L-shaped mounting bracket and abuts against the connection adjustment column, for locking the connection adjustment column and the L-shaped mounting bracket.

[0021] In a further embodiment, the mechanical limiting component further includes an adjusting slot, an adjusting slider, a magnetic block and a buffer pad.

[0022] Among them, the adjustment slot is opened through the arc-shaped limit block, the adjustment slider is slidably set in the adjustment slot, the magnetic block is set at the end of the adjustment slider, and is used to cooperate and tighten the two groups of mechanical limit components, and the buffer pad is connected to the arc-shaped limit block and the adjustment slider on one side close to the adaptive swivel seat.

[0023] A method for using a trowel comprises the following steps:

[0024] S1. When the ground to be troweled is flat, adjust the initial height of the trowel device by adjusting the cylinder so that the trowel device contacts the ground;

[0025] S2. During the operation of the trowel device, the distance measuring sensor monitors the height between the trowel device and the ground in real time, and cooperates with the adjustment cylinder to adjust the trowel device to maintain contact with the ground;

[0026] S3. When the surface to be smoothed is uneven, the smoothing device will adjust itself through the adaptive rotation seat, causing the damper to deform during the process. In turn, the damper pushes the smoothing device to continuously fit the surface;

[0027] S4. At the same time, the inclination sensor monitors the status of the trowel device in real time, and cooperates with the electric telescopic cylinder to fine-tune and correct the fit between the trowel device and the ground during the process.

[0028] Beneficial effects: The present invention relates to a trowel machine and a method for using the same. By arranging a floating suspension mechanism on the trowel device, the trowel device can be adaptively adjusted in angle according to the flatness of the ground, so that the machine as a whole can meet the needs of construction grounds in different states, improve the adaptability of construction and the flatness of the ground after construction, reduce the workload of repeated troweling, and improve work efficiency. At the same time, an active angle adjustment mechanism is arranged, which can cooperate with the floating suspension mechanism to automatically fine-tune the angle of the trowel device, further improve the accuracy of the angle adjustment, and can also adjust and set the initial angle of the trowel device before work, so that it can be quickly and efficiently put into troweling operations. In addition, a height adjustment mechanism is arranged, which can passively and adaptively adjust the height of the trowel device, and can also actively adjust the initial height of the trowel device to make it continuously fit the ground, thereby further improving its troweling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the main structure of the wiper plate floating adjustment device of the present invention.

[0030] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0031] Figure 3 It is a schematic diagram of the main structure of the present invention as a whole.

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the wiper plate floating adjustment device of the present invention.

[0033] Figure 5 It is a structural schematic diagram of the mechanical limiting component of the present invention.

[0034] Figure 6 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0035] The figures in the figure are marked as follows: 1. main frame; 2. polishing device; 3. wiping plate bracket; 4. floating suspension mechanism; 401. adaptive swivel seat; 402. damper; 5. active angle adjustment mechanism; 501. electric telescopic cylinder; 502. inclination sensor; 6. height adjustment mechanism; 601. connecting inner column; 602. connecting outer column; 603. connecting plate; 604. adjusting cylinder; 605. distance sensor; 7. mechanical limit component; 701. L-shaped mounting bracket; 702. arc limit block; 703. connecting adjustment column; 704. locking positioning pin; 705. adjusting slide; 706. adjusting slider; 707. magnetic block; 708. buffer pad; 8. driver's seat; 9. operating device; 10. power drive device. DETAILED DESCRIPTION

[0036] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, certain technical features well known in the art are not described to avoid confusion with the present invention.

[0037] The applicant believes that the troweling device of the existing ride-on trowel machine is usually directly connected to the drive device, which makes it impossible to adjust the troweling device, such as angle adjustment, making it unable to adapt to the construction requirements of different stages and different site surfaces. This will not only increase working time and intensity, but also cause poor flatness of the ground after the troweling operation, etc., and there are certain shortcomings.

[0038] For this purpose, the applicant proposes a trowel machine, such as Figures 1-6 As shown, it includes a main frame 1, a trowel device 2, a trowel bracket 3, a floating suspension mechanism 4, an active angle adjustment mechanism 5, a height adjustment mechanism 6, a mechanical limit component 7, a driver's seat 8, an operating device 9 and a power drive device 10.

[0039] Among them, the structures of the trowel device 2, the trowel bracket 3, the driver's seat 8, the operating device 9 and the power drive device 10 are partially not shown in the diagram of this application. Their specific structures and principles can refer to the corresponding structures and principles of the existing technology such as RCMGJ, XD-630 and SMG-S36 models of the ride-on trowel. The trowel device 2 is mainly arranged in the main frame 1 and is used for troweling the concrete floor. It usually includes components such as a trowel and a trowel for coarse grinding and fine grinding of the concrete floor. The trowel bracket 3 is connected to the main frame 1 and the trowel device. 2, usually serving as a motion transmission hub, transmits the power drive of the power drive device 10 to the troweling device 2, so that the troweling device 2 rotates. In addition, the troweling device 2 can also be directly connected to the power drive device 10, which can reduce power loss, etc. The driver's seat 8 is installed on the main frame 1 for the operator to sit on, and the operating device 9 is installed on one side of the main frame 1 for the operator to perform hand-held operation. The power drive device 10 is arranged in the main frame 1 and is connected to the operating device 9 and the troweling device 2, and is used to drive the entire device to work and provide power for the entire device.

[0040] However, the troweling device 2 of some existing trowel machines including the above-mentioned models does not have the adaptive adjustment function, including adjustment of height, angle, etc., resulting in that when performing troweling operations on some uneven ground, the troweling device 2 cannot fit well with the ground, especially some uneven and undulating ground, which not only requires repeated troweling, increasing working time and intensity, but also the flatness of the bottom surface after troweling is not good, and it cannot adapt to different construction grounds and stages, etc., and there are certain deficiencies. Therefore, a trowel plate floating adjustment device is provided, and the trowel plate floating adjustment device is installed between the main frame 1 and the trowel device 2 and the trowel plate bracket 3. The trowel plate floating adjustment device mainly includes a floating suspension mechanism 4, an active angle adjustment mechanism 5 and a height adjustment mechanism 6, which can drive the trowel device 2 to adjust the angle and height, so that the trowel device 2 can achieve adaptive and active adjustment of contact with the ground, etc. The device is described in detail below.

[0041] like Figure 3-Figure 5 As shown, the floating suspension mechanism 4 includes an adaptive swivel seat 401 and a damper 402 installed between the main frame 1 and the wiper bracket 3, and two sets of mechanical limiting components 7 arranged on the outside of the adaptive swivel seat 401 for limiting the swing angle of the adaptive swivel seat 401. The mechanical limiting component 7 includes an L-shaped mounting frame 701, an arc-shaped limiting block 702, a connecting adjustment column 703, a locking positioning pin 704, an adjusting slot 705, an adjusting slider 706, a magnetic block 707 and a buffer pad 708.

[0042] Among them, there are several dampers 402, and the dampers 402 are installed between the main frame 1 and the wiper bracket 3 at a predetermined angle and spacing. The L-shaped mounting frame 701 is installed on the main frame 1, and the arc limit block 702 is arranged on the side of the L-shaped mounting frame 701 close to the adaptive swivel seat 401. The arc limit block 702 and the adaptive swivel seat 401 are arranged at a predetermined spacing to limit the swing angle of the adaptive swivel seat 401. The connecting adjustment column 703 is slidably connected to the L-shaped mounting frame 701 and fixedly connected to the arc limit block 702 for adjusting the arc limit block 702. 02 and the distance between the adaptive rotating seat 401, the locking positioning pin 704 is installed on the L-shaped mounting frame 701 and abuts against the connecting adjustment column 703, which is used to lock the connecting adjustment column 703 and the L-shaped mounting frame 701, the adjusting slot 705 is opened through the arc limit block 702, the adjusting slider 706 is slidably set in the adjusting slot 705, the magnetic block 707 is set at the end of the adjusting slider 706, which is used to cooperate and tighten the two sets of mechanical limit components 7, and the buffer pad 708 is connected to the arc limit block 702 and the adjusting slider 706 on one side close to the adaptive rotating seat 401.

[0043] In the present application, the adaptive swivel seat 401 is used for the trowel device 2 to perform adaptive angle adjustment on the ground. The adaptive swivel seat 401 is a ball hinge, which can refer to the ball hinge of SKF and other models. It mainly includes a rotating ball head and a fixed ball seat. The fixed ball seat is fixed to the main frame 1 through a flange and bolts, and the rotating ball head is fixed to the trowel bracket 3 through an interference fit, a fixed pin or a threaded joint. The setting of the adaptive swivel seat 401 allows the trowel device 2 to swing within a predetermined angle, which is ±10°-±12° in the normal state. The damper 402 is a nitrogen spring hydraulic damping device. The nitrogen spring and the hydraulic damping device can also be installed in parallel to absorb high-frequency vibrations. The nitrogen spring can refer to the nitrogen spring of models such as SUSPA, and the damper 402 is used to provide damping to prevent the trowel device 2 from floating too much, while reducing the vibration of the trowel device 2 and buffering the vibration of the trowel device 2. The cooperation of the adaptive swivel 401 and the damper 402 can make the trowel device 2 have the function of adaptive ground, and can adaptively adjust the angle of the trowel device 2 itself according to the unevenness of the ground. At the same time, when the trowel device 2 is in an inclined state, the damper 402 can be deformed, and the deformed damper 402 can push the trowel device 2 to press the ground, thereby improving the troweling efficiency and the flatness of the ground after troweling.

[0044] In addition, two dampers 402 are provided in the present application. The two dampers 402 are symmetrically arranged on the outside of the adaptive swiping seat 401, and form an isosceles triangle shape with the wiper bracket 3. The wiper bracket 3 is a triangular bottom surface, that is, the angle between the wiper bracket 3 and the wiper bracket 3 is 45°. As we all know, vertical installation, that is, 90° installation will take up too much height space, and horizontal installation, that is, 0° installation cannot provide sufficient supporting force. 45° is a better compromise between space and performance, and when the inclination angle is set at 45°, the vertical and horizontal force components are equal, which can take into account stability and floating flexibility at the same time.

[0045] At the same time, the setting of the adaptive swivel seat 401 has the advantages of simple structure, high reliability and low cost. The adaptive swivel seat 401 can also be replaced by a four-link device, similar to the automobile suspension system, and cooperate with the hydraulic damping device to control the floating amplitude and prevent high-frequency vibration. It has the advantages of more stable floating and is suitable for high-precision construction, but the structure is more complex and the cost is higher.

[0046] In the present application, at least two groups of mechanical limiting components 7 are provided, and the two groups of mechanical limiting components 7 are symmetrically arranged on both sides of the adaptive turntable 401 and arranged along the tangent direction of the swing trajectory of the adaptive turntable 401. The L-shaped mounting frame 701 is fixed to the main frame 1 by bolts, and the arc-shaped limiting block 702 is correspondingly arranged at a predetermined position outside the rotating ball head of the adaptive turntable 401. By surrounding the outside of the rotating ball head with two groups of arc-shaped limiting blocks 702, the swing range of the rotating ball head can be further mechanically limited. At the same time, it can also prevent the damper 402 from over-travel compression, and provide final protection when the corresponding sensor described below fails, which can form a double protection with the following sensor.

[0047] In addition, the L-shaped mounting bracket 701 is provided with a through sliding hole adapted to the connecting adjustment column 703, which is used to connect the adjusting column 703 and the L-shaped mounting bracket 701 for sliding connection. The connecting adjustment column 703 is connected to a limited pull-out block at one end close to the L-shaped mounting bracket 701, which is used for the user to perform a pulling operation, thereby adjusting the distance between the arc limit block 702 and the adaptive rotating seat 401, thereby changing the swing angle range of the adaptive rotating seat 401 under different requirements. In extreme cases, the two sets of arc limit blocks 702 can be directly stuck on the outer wall of the adaptive rotating seat 401, so that the swing angle of the adaptive rotating seat 401 is 0°, or the two sets of arc limit blocks 702 can be moved away from the adaptive rotating seat 401, so that the swing angle of the adaptive rotating seat 401 is ±14°, or larger. It can be adjusted according to specific needs. Under normal circumstances, the swing angle of the polishing device 2 is best between ±10°-±12°.

[0048] The connection adjustment column 703 is provided with a locking groove that is compatible with the locking positioning pin 704. The connection adjustment column 703 and the L-shaped mounting bracket 701 can be adjusted and locked by loosening and tightening the locking positioning pin 704. Here, a guide rail slider can also be used to adjust the distance between the arc limit block 702 and the adaptive swivel seat 401. The setting of the adjustment slide 705 and the adjustment slider 706 can make the mechanical limit component 7 continue to surround the outside of the adaptive swivel seat 401 by moving the adjustment slider 706 when the two groups of arc limit blocks 702 are away from each other and do not contact each other, and be tightened by the magnetic block 707. The inner surface of the adjustment slider 706 and the inner surface of the arc limit block 702 are on the same horizontal plane, and the buffer pad 708 can be made of polyurethane gasket, which is bonded to the inner surface of the adjustment slider 706 and the arc limit block 702.

[0049] Under normal conditions, the arc-shaped limit block 702 maintains a predetermined gap with the rotating ball head of the adaptive rotating seat 401, so that the rotation angle of the adaptive rotating seat 401 is kept within a range of no more than 12°. When the polishing device 2 is subjected to lateral force, it can drive the adaptive rotating seat 401 to swing to 12°, so that the rotating ball head of the adaptive rotating seat 401 contacts the buffer pad 708. The elastic deformation of the buffer pad 708 can absorb the impact energy. When the swing is greater than 14°, the rotating ball head of the adaptive rotating seat 401 will directly press against the arc-shaped limit block 702 or the surface of the adjustment slider 706, triggering the maximum mechanical limit and also reducing the impact noise.

[0050] At the same time, the mechanical limit component 7 can also be replaced by a micro elastic damping device, which can be suitable for high-frequency impact conditions. It can also have built-in sensors, etc., and cooperate with PLC, etc. to record the number of exceeding the limit and the peak impact force, etc., to form intelligent control, etc.

[0051] like Figure 1-Figure 4 As shown, the active angle adjustment mechanism 5 is used to cooperate with the adaptive swivel 401 to fine-tune the angle of the trowel device 2. The active angle adjustment mechanism 5 includes a plurality of electric telescopic cylinders 501 installed at predetermined intervals and angles between the main frame 1 and the trowel bracket 3, and an inclination sensor 502 embedded in the middle of the trowel bracket 3.

[0052] Among them, the inclination sensor 502 is used to feedback the status of the trowel device 2, and cooperate with the electric telescopic cylinder 501 to actively adjust the angle of the trowel device 2. In this application, two electric telescopic cylinders 501 are also provided. The electric telescopic cylinder 501 can also be installed at an angle of 30°-45° to the trowel bracket 3, thereby avoiding waste of stroke caused by vertical installation, etc. The damper 402 and the electric telescopic cylinder 501 are hinged to the main frame 1 and the trowel bracket 3 through a Hooke's hinge. The damper 402 and the electric telescopic cylinder 501 are symmetrically arranged in two groups respectively, and the two groups of dampers 402 and the two groups of electric telescopic cylinders 501 are arranged at intervals on the outside of the adaptive swivel seat 401.

[0053] In the present application, the setting of the adaptive swivel seat 401 and the damper 402 is used to enable the trowel device 2 to achieve passive adaptation, and the setting of the electric telescopic cylinder 501 and the inclination sensor 502 can be used to set the initial angle of the trowel device 2 before construction, etc. The electric telescopic cylinder 501 and the inclination sensor 502 cooperate with the adaptive swivel seat 401 and the damper 402 to enable the trowel device 2 to always fit the ground, avoiding local leakage or excessive compaction, thereby improving the construction quality; the trowel device 2 can be made to float adaptively to reduce manual intervention, and novices can also operate it, thereby reducing the difficulty of operation; the trowel device 2 can be made to bear force evenly to reduce eccentric wear and reduce the wear rate, thereby extending the life of the trowel device 2; at the same time, the trowel device 2 can cope with complex working conditions such as slopes and curved ground, expanding the overall applicable scenarios of the equipment.

[0054] In addition, the floating suspension mechanism 4 and the active angle adjustment mechanism 5 can also cooperate with the PLC or single-chip microcomputer to integrate sensor data to achieve automatic optimization of the grinding wheel posture.

[0055] like Figure 1-Figure 4 As shown, the height adjustment mechanism 6 is installed between the trowel bracket 3 and the polishing device 2. The height adjustment mechanism 6 is used to fine-tune the height of the polishing device 2. The height adjustment mechanism 6 includes an inner connecting column 601, an outer connecting column 602, a connecting plate 603, an adjusting cylinder 604 and a distance sensor 605.

[0056] Among them, the connecting inner column 601 is connected to the side of the wiping plate bracket 3 away from the main frame 1, the connecting outer column 602 is slidably set at the end of the connecting inner column 601 close to the trowel device 2 and is connected to the trowel device 2, and a height adjustment spring is set between the connecting inner column 601 and the connecting outer column 602, which is used to adjust the height of the trowel device 2 by the connecting inner column 601 and the connecting outer column 602. The connecting plate 603 is connected to the connecting outer column 602, and the adjusting cylinder 604 is installed on the wiping plate bracket 3 and the driving end is connected to the connecting plate 603, which is used to adjust the height of the trowel device 2. The ranging sensor 605 is embedded in the outer wall of the wiping plate bracket 3, which is used to feedback the status of the trowel device 2 and cooperate with the adjusting cylinder 604 to actively adjust the height of the trowel device 2.

[0057] In the present application, the setting of connecting the inner column 601, connecting the outer column 602 and the height adjustment spring can enable the height of the trowel device 2 to be passively adaptively adjusted, so that the trowel device 2 can continuously press the ground. However, the compression of the spring itself is floating, which will cause the trowel device 2 to vibrate too much. Therefore, a connecting plate 603, an adjusting cylinder 604 and a distance sensor 605 are set, and a PLC controller is also included. The adjusting cylinder 604 can be replaced with a servo cylinder, which can realize automatic adjustment of the height of the trowel device 2. At the same time, the distance sensor 605 monitors data in real time, and the signal line is connected to the PLC controller. The PLC controller integrates the signals of the adjusting cylinder 604 and the distance sensor 605, and cooperates with the adjusting cylinder 604 to perform real-time dynamic adjustment on the height of the trowel device 2.

[0058] Based on the above technical solution, the specific working process of the present invention is as follows: when the ground to be smoothed is uneven, the smoothing device 2 is adaptively adjusted through the adaptive swivel seat 401, which drives the damper 402 to deform during the process. In turn, the damper 402 pushes the smoothing device 2 to continuously fit the ground. At the same time, the inclination sensor 502 monitors the status of the smoothing device 2 in real time, and cooperates with the electric telescopic cylinder 501 to fine-tune and correct the smoothing device 2 to fit the ground during the process. That is, the electric telescopic cylinder 501 on one side is extended and the electric telescopic cylinder 501 on the other side is shortened, so that one side of the smoothing device 2 is lowered and the other side is raised to achieve angle adjustment.

[0059] When the ground to be smoothed is flat, the electric telescopic cylinders 501 on both sides extend and retract synchronously to compensate for the uneven ground, and adjust the initial height of the smoothing device 2 by adjusting the cylinder 604 so that the smoothing device 2 contacts the ground. During the operation of the smoothing device 2, the distance measuring sensor 605 monitors the height of the smoothing device 2 and the ground in real time, and cooperates with the adjusting cylinder 604 to adjust the smoothing device 2 to keep in contact with the ground during the process. Before the smoothing work, the initial height of the smoothing device 2 can also be adjusted by adjusting the cylinder 604, and the initial angle of the smoothing device 2 can be adjusted by the electric telescopic cylinder 501.

[0060] As above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes may be made to it in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A trowel machine, characterized in that: The utility model comprises a main frame, a trowel device arranged in the main frame for troweling concrete floors, a trowel support connected between the main frame and the trowel device, and a trowel floating adjustment device installed between the main frame, the trowel device and the trowel support, wherein the trowel floating adjustment device comprises: The floating suspension mechanism includes an adaptive rotating seat installed between the main frame and the wiper bracket, and two sets of mechanical limiting components arranged on the outside of the adaptive rotating seat for limiting the swing angle of the adaptive rotating seat; An active angle adjustment mechanism includes a plurality of electric telescopic cylinders installed between the main frame and the wiper bracket at predetermined intervals and angles; A height adjustment mechanism is installed between the trowel support and the trowel device; The adaptive swivel seat is used for the trowel device to perform adaptive angle adjustment on the ground, the active angle adjustment mechanism is used to cooperate with the adaptive swivel seat to fine-tune the angle adjustment of the trowel device, and the height adjustment mechanism is used to fine-tune the height of the trowel device; The mechanical limiting component includes an L-shaped mounting frame, an arc-shaped limiting block, a connecting adjustment column and a locking positioning pin; The L-shaped mounting frame is mounted on the main frame; The arc-shaped limit block is arranged on a side of the L-shaped mounting frame close to the adaptive rotating seat, and a predetermined distance is formed between the arc-shaped limit block and the adaptive rotating seat to limit the swing angle of the adaptive rotating seat; The connection adjustment column is slidably connected to the L-shaped mounting bracket and fixedly connected to the arc-shaped limit block, and is used to adjust the distance between the arc-shaped limit block and the adaptive rotating seat; The locking positioning pin is installed on the L-shaped mounting frame and abuts against the connection adjustment column, and is used to lock the connection adjustment column and the L-shaped mounting frame; The mechanical limiting component also includes an adjusting slot, an adjusting slider, a magnetic block and a buffer block; The adjusting slot is formed on the arc-shaped limiting block; The adjusting slider is slidably disposed in the adjusting slot; The magnetic block is provided at the end of the adjusting slider for cooperating and sucking the two sets of mechanical limiting components; The buffer block is connected to the arc-shaped limiting block and a surface of the adjusting slider close to the adaptive rotating seat.

2. A trowel machine according to claim 1, characterized in that: It also includes a driver's seat, operating device and power drive device; The driver's seat is installed on the main frame for the operator to sit on; The operating device is installed on one side of the main frame and is used for handheld operation by the operator; The power drive device is arranged in the main frame and is connected to the operating device and the trowel device, and is used to drive the entire device to work.

3. A trowel machine according to claim 1, characterized in that: The floating suspension mechanism further includes a damper; There are a plurality of dampers, which are installed between the main frame and the wiping plate bracket at a predetermined angle and interval, and are used to buffer and limit the swing of the trowel device; The adaptive swivel seat is a ball hinge, and the damper is a nitrogen spring.

4. A trowel machine according to claim 3, characterized in that: The damper and the electric telescopic cylinder are hinged to the main frame and the wiper bracket through a Hooke's hinge; The dampers and the electric telescopic cylinders are symmetrically arranged in two groups, and the two groups of dampers and the two groups of electric telescopic cylinders are arranged at intervals outside the adaptive swivel seat.

5. The trowel machine according to claim 1, characterized in that: The active angle adjustment mechanism also includes a tilt sensor; The inclination sensor is embedded in the middle of the trowel bracket and is used to feedback the status of the trowel device and cooperate with the electric telescopic cylinder to actively adjust the angle of the trowel device.

6. A trowel machine according to claim 1, characterized in that: The height adjustment mechanism includes a connecting inner column and a connecting outer column; The connecting inner column is connected to a side of the wiper bracket away from the main frame; The connecting outer column is slidably arranged on one end of the connecting inner column close to the trowel device and is connected to the trowel device; A height adjustment spring is provided between the connecting inner column and the connecting outer column, and is used for the connecting inner column to cooperate with the connecting outer column to adjust the height of the trowel device.

7. A trowel machine according to claim 6, characterized in that: The height adjustment mechanism also includes a connecting plate, an adjustment cylinder and a distance sensor; The connecting plate is connected to the connecting outer column; The adjusting cylinder is mounted on the trowel bracket and the driving end is connected to the connecting plate, and is used to adjust the height of the trowel device; The distance measuring sensor is embedded on the outer wall of the trowel bracket and is used to feedback the status of the trowel device and cooperate with the regulating cylinder to actively adjust the height of the trowel device.

8. The method for using the trowel according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. When the ground to be troweled is flat, adjust the initial height of the trowel device by adjusting the cylinder so that the trowel device contacts the ground; S2. During the operation of the trowel device, the distance measuring sensor monitors the height between the trowel device and the ground in real time, and cooperates with the adjustment cylinder to adjust the trowel device to maintain contact with the ground; S3. When the surface to be smoothed is uneven, the smoothing device will adjust itself through the adaptive rotation seat, causing the damper to deform during the process. In turn, the damper pushes the smoothing device to continuously fit the surface; S4. At the same time, the inclination sensor monitors the status of the trowel device in real time, and cooperates with the electric telescopic cylinder to fine-tune and correct the fit between the trowel device and the ground during the process.

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