A concrete paving trestle and control method

Abstract

The present invention discloses a concrete paving trestle and a control method. The concrete paving trestle comprises a trestle body, a trolley assembly and a paving assembly; the trolley assembly is arranged on the trestle body and can move longitudinally on the trestle body; the paving assembly is installed on the trolley assembly, and the paving assembly is located below the trestle body. The present invention has the advantages of high construction efficiency and can greatly reduce labor costs.

Description

Technical Field

[0001] The invention relates to the technical field of trestles, and in particular to a concrete paving trestles and a control method thereof. Background Art

[0002] The trestle is a kind of engineering machinery equipment commonly used in the construction of civil engineering projects such as tunnels and bridges, so as to facilitate the vehicles transporting materials and equipment, as well as personnel and equipment to pass through the construction area. During the construction process, in order to improve the construction efficiency, the excavation and the hardening of the roadbed are generally carried out simultaneously, that is, the excavation surface and the hardened roadbed are connected by the trestle. At the same time, the area under the trestle is simultaneously constructed with concrete to harden the roadbed. However, the existing trestles can only serve as a connecting channel connecting the excavation surface and the hardened roadbed. At the same time, as a tool for hanging and placing equipment such as formwork in the construction of roadbed hardening, the construction of the roadbed mainly relies on manual installation of formwork, manual vibration and paving of concrete, etc., which is inefficient and has high labor costs. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in view of the technical problems existing in the prior art, the present invention provides a concrete paving trestles and control method with high construction efficiency and the ability to significantly reduce labor costs.

[0004] In order to solve the above technical problems, the technical solution proposed in the present invention is: a concrete paving trestle, comprising a trestle body, a trolley assembly and a paving assembly;

[0005] The trolley assembly is arranged on the trestle body and can move longitudinally on the trestle body;

[0006] The paving assembly is installed on the trolley assembly, and the paving assembly is located below the trestle body.

[0007] Furthermore, it also includes a height adjustment component, and the paving component is installed on the trolley component through the height adjustment component; the height adjustment component is used to adjust the height of the paving component.

[0008] Furthermore, the height adjustment assembly and the paving assembly are movably connected, and the movably connected connection includes a hinge, a hanging connection, or a spring connection.

[0009] Furthermore, it also includes a height detection module and a control module;

[0010] The height detection module is used to detect and obtain the actual height of the paving assembly;

[0011] The control module is used to determine the adjusted height according to the actual height and the preset elevation, and control the height adjustment component to adjust the height of the paving component.

[0012] Further, the height detection module includes a trolley position detection module, a trestle inclination detection module and a calculation module;

[0013] The trolley position detection module is used to obtain the position of the trolley assembly on the trestle body;

[0014] The trestle inclination detection module is used to obtain the longitudinal inclination of the trestle body;

[0015] The calculation module is used to calculate the actual height of the paving assembly based on the position and the longitudinal inclination.

[0016] Furthermore, the trestle inclination detection module includes at least one inclination sensor; and each structural section of the trestle body is provided with an inclination sensor.

[0017] A control method for a concrete paving trestle detects and obtains the longitudinal inclination angle of the trestle and the position of a trolley assembly on the trestle, calculates and determines the actual height of the paving assembly based on the longitudinal inclination angle and the position, determines the height adjustment amount of the paving assembly based on the actual height and a preset elevation, and controls the height adjustment assembly to adjust the height of the paving assembly.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The present invention arranges a movable trolley assembly on the trestle, and a paving device is installed on the trolley, so that the trolley assembly can drive the paving assembly to perform concrete paving operations on the area below the trestle, which greatly improves the efficiency of the concrete operation and reduces the labor cost of the concrete operation.

[0020] 2. The present invention installs the paving assembly on the trolley assembly through a height adjustment assembly, so that the operating height of the paving assembly can be adjusted conveniently according to the elevation requirements of the project, which is flexible and convenient.

[0021] 3. The trestle of the present invention has a height detection module and a control module. The actual height of the paving assembly can be automatically detected by the height detection module, and the height adjustment assembly can be controlled by the control module to adjust the height of the paving assembly, which can effectively ensure the quality of the concrete paving operation. In particular, when vehicles or other heavy equipment pass through the trestle, causing the trestle to deform, the height adjustment can also effectively compensate for such deformation to ensure the flatness of the paving operation surface.

[0022] 4. The present invention calculates and determines the height of the paving assembly by detecting the position of the trolley assembly on the trestle and the longitudinal inclination angle of the trestle itself, and then adjusts the height of the paving assembly according to a preset elevation. It can accurately determine the height of the paving assembly and make adjustments even in harsh environments with high dust, poor ventilation and poor visibility, and has good reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram and a partial enlarged diagram (side view) of a specific embodiment of the present invention.

[0024] Figure 2 It is a structural schematic diagram of a trestle at a construction site according to a specific embodiment of the present invention (front view).

[0025] Figure 3 It is a schematic diagram of the connection structure between the height adjustment component and the paving component according to a specific embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of the construction process of a specific embodiment of the present invention (side view).

[0027] Figure 5 Schematic diagram of the height calculation principle of a specific embodiment of the present invention Figure 1 .

[0028] Figure 6 Schematic diagram of the height calculation principle of a specific embodiment of the present invention Figure 2 .

[0029] Legend: 1. Trestle body; 2. Trolley assembly; 3. Height adjustment assembly; 4. Paving assembly; 5. Inclination detection module; 6. Trolley position detection module. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0031] like Figure 1 As shown, the concrete paving trestle of this embodiment includes a trestle body, a trolley assembly and a paving assembly; the trolley assembly is arranged on the trestle body and can move longitudinally on the trestle body; the paving assembly is installed on the trolley assembly, and the paving assembly is located below the trestle body. Figure 1 In order to express the innovation of this patent, only the side of the trestle body is shown, and other structural features on the trestle body are omitted.

[0032] In this embodiment, if Figure 1 and Figure 4As shown in the figure, the trestle serves as a passage for the left and right traffic in the construction area, and below the trestle is the area where concrete construction needs to be carried out. The trestle is erected above the concrete construction area through its supporting legs. The direction of the passage formed by the trestle is Figure 1 and Figure 4 The left and right directions are the longitudinal directions of the trestle referred to in this embodiment.

[0033] In this embodiment, Figure 2 The front view of the concrete paving trestle of this embodiment, the trestle body includes main beams located on the left and right sides and cross beams connecting the main beams, and the lower part of the main beam of the trestle body has a track extending outward. The trolley assembly is provided with wheels, and the trolley assembly is hung on the track through the wheels and is located below the trestle body, and the wheels on the trolley assembly can move along the track. It should be noted that the above-mentioned method exemplified in this embodiment is only a preferred solution and does not limit the protection scope of the present invention. Other installation and matching methods can also be adopted between the trolley assembly and the trestle body, such as the trolley assembly is arranged between the two main beams of the trestle body, and the trolley assembly is suspended below the trestle body. The trolley assembly can adopt an active drive mode, such as the trolley assembly itself includes a driver to drive the trolley assembly to move on the trestle; the trolley assembly can also adopt a passive drive mode, such as a driver is additionally arranged outside the trolley assembly, and the trolley assembly is pulled to move on the trestle body through a transmission method such as a chain.

[0034] In this embodiment, the paving assembly is installed on the trolley assembly, and can be driven by the trolley assembly to move longitudinally along the trestle, so that the concrete under the trestle can be paved. The paving assembly can be selected according to the construction requirements, such as Figure 1 As shown in the figure, the paving assembly includes a spiral paving drum and a vibrating screed plate. The spiral paving drum is used to flatten the concrete and reduce the peak-to-valley differences on the concrete surface; the vibrating screed plate is used to further compact and smooth the concrete surface under the action of the vibrator to achieve a compact and smooth concrete surface; of course, other equipment, such as plate vibrating equipment, can also be added according to project requirements.

[0035] In this embodiment, a height adjustment component is also included, and the paving component is installed on the trolley component through the height adjustment component; the height adjustment component is used to adjust the height of the paving component. The height adjustment component can be used to conveniently adjust the height of the paving component. During construction, it is only necessary to set up the trestle in place, and then adjust the height of the paving component through the height adjustment component according to the concrete elevation required for construction, and then concrete construction can be carried out.

[0036] In this embodiment, if Figure 2As shown, a height adjustment assembly is provided on each of the left and right sides of the trolley assembly, and a paving assembly is installed at the lower end of the height adjustment assembly. The height adjustment assembly and the paving assembly are connected in an active manner; the active connection is preferably a hinged connection, or a hanging connection, or a spring connection, or a connection in a combination of two or more connection modes. A specific connection method using a combination of two connection modes is as follows Figure 3 As shown ( Figure 3 It only illustrates the connection relationship between the two, and does not reflect the complete components). A lifting lug is set on the paving component, and a corresponding hook is set on the height adjustment component to ensure the relative mobility between the paving component and the height adjustment component. At the same time, a spring or rubber pad can be set between the height adjustment component and the paving component to ensure the relative stability between the two. By adopting a movable connection, the height adjustment device and the paving component can still have a certain limit of relative movement space after being connected. On the one hand, the height adjustment component can be lifted and lowered conveniently and smoothly, and will not be stuck or damaged due to the asynchrony between the height adjustment components on the left and right sides; on the other hand, the lateral inclination angle of the paving component can be easily adjusted through the lifting height difference of the height adjustment components on the left and right sides, so that the equipment of the present invention can be suitable for concrete paving on a flat surface, and also for concrete paving on a plane with a lateral slope. Figure 2 As shown, when a construction plane with a transverse slope is required, the transverse slope angle of the paving assembly can be adjusted to the required state by adjusting the height of the height lifting assemblies on the left and right sides, thereby realizing concrete construction on the sloped plane.

[0037] In this embodiment, the height adjustment component can be lifted by hydraulic lifting, screw lifting, scissor lifting and other methods, but it is not limited to the above-mentioned ones. In this embodiment, the hydraulic lifting method is preferably used, which has high lifting control accuracy and good reliability, and can adapt well to the harsh construction environment of the tunnel. The lifting control method of the height adjustment component can be manual control or automatic control. By manual control, the height of the paving component can be pre-adjusted before concrete construction, that is, the concrete can be automatically paved and leveled.

[0038] In this embodiment, since the trestle is also the operating channel for other engineering machinery (such as excavators, dump trucks, etc.), it needs to bear the weight of other engineering machinery and equipment. When other engineering machinery and equipment pass by, the trestle will undergo certain deformation and vibration. Therefore, it is difficult to eliminate the adverse effects brought about by the passage of other engineering equipment through the trestle by manual control, and it is still possible that the concrete surface is not smooth enough.

[0039] In this embodiment, preferably, a height detection module and a control module are also included; the height detection module is used to detect and obtain the actual height of the paving assembly; the control module is used to determine the adjustment height according to the actual height and the preset elevation, and control the height adjustment assembly to adjust the height of the paving assembly. The height of the paving assembly can be detected in real time by the height detection module, and the height of the paving assembly can be adjusted by controlling the height adjustment assembly in real time by the control module, thereby eliminating the adverse effects of other engineering equipment passing through the trestle and improving the leveling effect of the paving assembly.

[0040] In this embodiment, the height of the paving assembly can be determined in a variety of ways. The preferred height detection module includes a trolley position detection module, a trestle inclination detection module and a calculation module; the trolley position detection module is used to obtain the position of the trolley assembly on the trestle body; the trestle inclination detection module is used to obtain the longitudinal inclination of the trestle body; the calculation module is used to calculate the actual height of the paving assembly based on the position and the longitudinal inclination. The trolley position detection module can use non-contact sensors such as laser ranging sensors, infrared ranging sensors, ultrasonic ranging sensors, etc. as needed, and can also use conversion sensors such as placement encoders and stretching encoders. The trolley position detection module can detect and determine the distance between the trolley assembly and the detection point. The trestle inclination detection module is installed on the trestle to detect and obtain the longitudinal inclination of the trestle. After obtaining the position of the trolley assembly and the longitudinal inclination of the trestle body, by Figure 5 The calculation principle shown can be used to calculate the height that needs to be adjusted to determine the location of the trolley assembly. Figure 5 In the process, the length of OA can be determined by the distance sensor, and the angle of inclination θ can be determined by the trestle inclination detection module. Then, through simple trigonometric functions, the required adjustment height of the paving assembly can be calculated as ΔY=X*sinθ, where ΔY is the adjustment height, X is the measured distance, i.e. the position of the trolley assembly, and θ is the longitudinal inclination of the trestle body. Of course, based on the same principle, the length of OB can also be measured. Even the difference between OA and OB can be ignored as an error, and the length of any side can be measured.

[0041] In this embodiment, when the trestle body adopts a segmented structure, Figure 1 and Figure 4 The trestle shown in the figure is a two-section structure. Preferably, the trestle inclination detection module includes at least one inclination sensor; each section of the trestle body is provided with an inclination sensor. Each inclination sensor can determine the longitudinal inclination of a section of the trestle body, and combined with the length of each section of the trestle body that can be determined in advance, the adjustment height ΔY can also be calculated according to the same principle as above, as shown in FIG. Figure 6As shown, X is the distance measured by the distance measuring sensor, O-B1 is the length of the first section of the trestle body, θ1 is the longitudinal inclination angle of the first section of the trestle body, and the height difference ΔY1 of the first section of the trestle body and the corresponding straight-line distance O-A1 are determined by trigonometric functions as X1. The distance B1-A2 can be further calculated as X-X1, and then according to the inclination angle θ1 of the second section of the trestle body, the height difference ΔY2 of the paving assembly at the position of the second section of the trestle body can be calculated by trigonometric functions, so that the height difference that needs to be adjusted at this position is ΔY1+ΔY2.

[0042] The control method of the concrete paving trestle of this embodiment detects and obtains the longitudinal inclination angle of the trestle and the position of the trolley assembly on the trestle, calculates and determines the actual height of the paving assembly according to the longitudinal inclination angle and the position, determines the height adjustment amount of the paving assembly according to the actual height and the preset elevation, and controls the height adjustment assembly to adjust the height of the paving assembly. The specific method of determining the actual height of the paving assembly in this embodiment is the same as the above method.

[0043] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A concrete paving trestle, characterized in that: It includes a trestle body, a trolley assembly, a height adjustment assembly and a paving assembly; The trolley assembly is arranged on the trestle body and can move longitudinally on the trestle body; The paving assembly is installed on the trolley assembly, and the paving assembly is located below the trestle body; The paving assembly is installed on the trolley assembly through the height adjustment assembly; the height adjustment assembly is used to adjust the height of the paving assembly; The concrete paving trestle also includes a height detection module and a control module; The height detection module is used to detect and obtain the actual height of the paving assembly; The control module is used to determine the adjustment height according to the actual height and the preset elevation, and control the height adjustment component to adjust the height of the paving component; The height detection module includes a trolley position detection module, a trestle inclination detection module and a calculation module; The trolley position detection module is used to obtain the position of the trolley assembly on the trestle body; The trestle inclination detection module is used to obtain the longitudinal inclination of the trestle body; The calculation module is used to calculate the actual height of the paving assembly according to the position and the longitudinal inclination; The trestle inclination detection module includes at least one inclination sensor; the trestle body is a segmented structure, and each segment of the trestle body is provided with an inclination sensor, each inclination sensor determines the longitudinal inclination of a segment of the trestle body, and calculates the adjustment height in combination with the predetermined length of each segment of the trestle body.

2. The concrete paving trestle according to claim 1, characterized in that: The height adjustment component and the paving component are movably connected.

3. A control method for a concrete paving trestle according to claim 1 or 2, characterized in that: The longitudinal inclination angle of the trestle and the position of the trolley assembly on the trestle are detected and obtained, the actual height of the paving assembly is determined based on the longitudinal inclination angle and the position, the adjusted height of the paving assembly is determined based on the actual height and a preset elevation, and the height adjustment assembly is controlled to adjust the height of the paving assembly.

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