A linkage screed for long large size concrete panels and a method of screeding

Abstract

The application relates to the technical field of civil engineering construction, in particular to a linkage type trowelling machine for long and large size concrete panels and a trowelling method. According to the actual size of the concrete panel, the specifications and the number of the roller shafts and the hydraulic rods are determined, the size and the elevation of the concrete panel are demarcated, the linkage type trowelling machine components and the sliding rails are assembled and fixed based on the size and the elevation, the hydraulic control system is used to operate the reciprocating movement of the roller shafts, the excess concrete on the surface of the component is filled in the lacking position, the flatness requirement is achieved, the working efficiency of the linkage type trowelling machine is ensured, and the automation degree is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of civil engineering construction, and in particular to a linkage type tamping machine and tamping method for long and large size concrete panels. BACKGROUND

[0002] With the development of the industrialized intelligent construction technology of bridges, the size of structural members and the prefabrication accuracy are also increasingly high. The flatness of the bridge deck is closely related to the structural performance and service life. For the continuously widening road deck, the flatness error generated during prefabrication will be amplified during installation, which will affect the structural performance and cause the driving comfort problem. At present, in the automatic prefabrication production, for the small plate type members, the vibration tamping machine is usually used for plate surface leveling, which greatly improves the prefabrication accuracy. However, for the large size beam type member top plate such as T-beam and box beam, the manual tamping method is generally used, which consumes a lot of time and manpower and is not conducive to the automatic production of bridge members. At the same time, the manual leveling is highly subjective and also has a certain flatness error. SUMMARY

[0003] In order to solve the above problems, the purpose of the present application is to provide a linkage type tamping machine and tamping method for long and large size concrete panels. The present application determines the roller shaft, the specification and the number of the hydraulic rod according to the actual size of the concrete panel, and delimits the size and elevation of the concrete panel. Based on this, the linkage type tamping machine components and the sliding rail are assembled and fixed. The hydraulic control system is used to operate the reciprocating motion of the roller shaft, the excess concrete on the surface of the member is filled in the missing part, so as to meet the flatness requirement, ensure the working efficiency of the linkage type tamping machine and improve the degree of automation.

[0004] The purpose of the present application can be achieved by the following technical solutions:

[0005] The first purpose of the present application is to provide a linkage type tamping machine for long and large size concrete panels, which is provided with a plurality of exposed annular ribs on the outer side of the concrete panel, and comprises a steel formwork, a hydraulic rod, a roller shaft, a roller and a sliding rail,

[0006] The steel formwork is arranged through the two sides of the concrete panel along the length direction, the sliding rail is laid above the exposed annular rib and connected with the steel formwork, the roller shaft is arranged at intervals on the top of the steel formwork, the end part is connected with the roller, and the roller is matched with the sliding rail. The hydraulic rod is arranged between two adjacent roller shafts.

[0007] In an embodiment of the present application, the linkage type tamping machine is applied to the concrete panel with a length greater than 8 meters, including the beam type member top plate such as T-beam and box beam.

[0008] In one embodiment of the present application, the roller shafts and the rollers are connected by roller shaft fixing components.

[0009] In one embodiment of the present application, grooves are provided on the sliding tracks for matching the sliding of the rollers and the roller shafts.

[0010] In one embodiment of the present application, the roller shafts are coated with a non-stick protective layer (to prevent the roller shafts from sticking to the concrete), which is easy to clean and maintain after the finishing of the construction.

[0011] In one embodiment of the present application, the hydraulic rods have a certain rigidity to prevent the equipment from malfunctioning due to excessive resistance during the finishing of the construction.

[0012] In one embodiment of the present application, the concrete panels have a certain pre-camber, and the linkage finishing machine can be used for the finishing of the concrete panels with a certain pre-camber.

[0013] In one embodiment of the present application, the hydraulic rods are provided with multiple.

[0014] The second object of the present application is to provide a finishing method for the linkage finishing machine for large-sized concrete panels, comprising the following steps:

[0015] (S1) determining the specifications and the number of the hydraulic rods and the roller shafts according to the size of the concrete panels and the finishing method, and performing modular assembly;

[0016] (S2) after the completion of the pouring by the concrete placing machine, installing the linkage finishing machine at the corresponding position on the upper part of the concrete panel, marking the elevation line of the concrete panel, and setting the roller shafts above the steel formwork;

[0017] (S3) along the direction of travel of the production line, controlling the hydraulic rods to push and pull the roller shafts from one end of the concrete panel to achieve the finishing effect, fixing one end of the hydraulic rods, and moving the whole to the other side for stretching;

[0018] (S4) when the moving end roller shaft moves to the other side of the concrete panel, fixing the roller shafts, releasing the original fixed side, and starting the retraction of the whole to the other side while maintaining the pushing and pulling of the hydraulic rods.

[0019] In one embodiment of the present application, in step (S2), a lubricant is brushed on the steel formwork and in the grooves of the sliding tracks to reduce the resistance between the contacting components.

[0020] In one embodiment of the present application, in step (S3), the hydraulic rods are controlled by an automatic hydraulic control system to push and pull the roller shafts.

[0021] In one embodiment of the present application, the linkage type screeding machine can set different screeding plans according to the length size of the component, including full plane screeding and movable partial screeding.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] (1) The linkage type screeding machine for large-size concrete panels of the present application can be used for concrete panels with a length size greater than 8 m and a certain pre-camber, and the device can be modularly assembled according to the size of the concrete panels, which is more suitable.

[0024] (2) The linkage type screeding machine for large-size concrete panels of the present application uses a hydraulic control system to perform concrete screeding, which has a high degree of automation, requires less personnel, can control the panel flatness error within a certain range, and improves the production efficiency of the automated assembly line. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Figure 1 is a device schematic diagram of the linkage type screeding machine for large-size concrete panels of the present application;

[0026] Figure 2 Figure 2 is a process of the linkage type screeding machine for large-size concrete panels of the present application;

[0027] Figure 3 Figure 3 is a working process schematic diagram of the linkage type screeding machine for large-size concrete panels of the present application;

[0028] Figure 1 is a device schematic diagram of the linkage type screeding machine for large-size concrete panels of the present application; DETAILED DESCRIPTION

[0029] The present application provides a linkage type screeding machine for large-size concrete panels, which is provided with a plurality of exposed annular ribs on the outer side of the concrete panel, and comprises a steel formwork, a hydraulic rod, a roller shaft, a roller and a sliding track,

[0030] The steel formwork is arranged through the two sides of the concrete panel along the length direction, the sliding track is laid above the exposed annular ribs and connected with the steel formwork, the roller shaft is arranged at intervals on the top of the steel formwork, the end part is connected with the roller, and the roller is matched with the sliding track; the hydraulic rod is arranged between two adjacent roller shafts.

[0031] In one embodiment of the present application, the linkage type screeding machine is applied to concrete panels with a length greater than 8 m, including T-beams, box beams and other beam type components.

[0032] In one embodiment of the present application, the roller shafts and the rollers are connected by roller shaft fixing components.

[0033] In one embodiment of the present application, grooves are provided on the sliding tracks for matching the sliding of the rollers and the roller shafts.

[0034] In one embodiment of the present application, the roller shafts are coated with a non-stick protective layer (to prevent the roller shafts from sticking to the concrete), which is easy to clean and maintain after the finishing of the construction.

[0035] In one embodiment of the present application, the hydraulic rods have a certain rigidity to prevent the equipment from malfunctioning due to excessive resistance during the finishing of the construction.

[0036] In one embodiment of the present application, the concrete panels have a certain pre-camber, and the linkage finishing machine can be used for finishing the concrete panels with a certain pre-camber.

[0037] In one embodiment of the present application, the hydraulic rods are provided with multiple.

[0038] The present application provides a leveling method for a linkage finishing machine for large-sized concrete panels, comprising the following steps:

[0039] (S1) determining the specifications and the number of the hydraulic rods and the roller shafts according to the size of the concrete panels and the finishing method, and performing modular assembly;

[0040] (S2) after the completion of the pouring by the concrete placing machine, installing the linkage finishing machine at the corresponding position on the upper part of the panel construction, marking the elevation line of the concrete panel, and setting the roller shafts above the steel formwork;

[0041] (S3) along the direction of travel of the production line, controlling the hydraulic rods to push and pull the roller shafts from one end of the concrete panel to achieve the finishing effect, and fixing one end of the hydraulic rods to move and stretch the whole to the other side;

[0042] (S4) when the moving end roller shaft moves to the other side of the concrete panel, fixing the roller shafts, releasing the original fixed side, and starting the retraction of the whole hydraulic rods to the other side, while maintaining the pushing and pulling of the hydraulic rods.

[0043] In one embodiment of the present application, in step (S2), a lubricant is brushed on the steel formwork and in the grooves of the sliding tracks to reduce the resistance between the contacting components.

[0044] In one embodiment of the present application, in step (S3), the hydraulic rods are controlled by an automatic hydraulic control system to push and pull the roller shafts.

[0045] In one embodiment of the present application, the linkage screed can set different screeding plans according to the length of the component, including full plane screeding, mobile partial screeding.

[0046] The present application will be described in detail below with reference to the drawings and specific embodiments.

[0047] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] In the description of the present embodiment, the terms "up", "down", "left", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0050] Embodiment 1

[0051] The present embodiment provides a linkage screed for large-size concrete panels, such as Figure 1 、 3As shown, the outer side of the concrete panel 2 is provided with several exposed annular ribs 5, including a steel formwork 3, a hydraulic rod 4, a roller shaft 1, a roller 6 and a sliding track 8, the steel formwork 3 is arranged through the two sides of the concrete panel 2 along the length direction, and a lubricant is coated on the steel formwork 3, the sliding track 8 is laid on the exposed annular rib 5 and connected with the steel formwork 3, the roller shaft 1 is coated with a non-stick coating and is arranged at intervals on the top of the steel formwork 3, the end is connected with the roller 6 through the roller shaft fixing part 7, the sliding track 8 is provided with a groove for matching the sliding of the roller 6 and the roller shaft 1, the roller 6 and the roller shaft fixing part 7 are matched with the sliding track 8, and the groove is coated with a lubricant to allow the roller 6 and the roller shaft fixing part 7 to reciprocate; the hydraulic rod 4 is arranged between two adjacent roller shafts 1.

[0052] In the embodiment, the linkage type leveling machine can be applied to concrete panels 2 with a length greater than 8 meters, including T-beams, box beams and other beam type component top plates; it can be applied to concrete panel 2 leveling with a certain pre-camber; the roller shaft 1 surface is coated with a non-stick protective layer, which is easy to clean and maintain after the component leveling is completed; the hydraulic rod 4 has a certain rigidity, which prevents equipment failure caused by excessive resistance during component leveling; the concrete panel 2 has a pre-camber; the hydraulic rod 4 is provided with multiple, and the hydraulic rod 4 controls the push-pull action of the roller shaft 1 by an automatic hydraulic control system; a lubricant is coated on the steel formwork 3 and in the groove of the sliding track 8, which can reduce the resistance between the contact parts; the linkage type leveling machine can set different leveling plans according to the length and size of the component, including full plane leveling and mobile partial leveling.

[0053] Embodiment 2

[0054] The embodiment provides a leveling method for a linkage type leveling machine for large-size concrete panels, as shown in Figures 2-3 The embodiment provides a leveling method for a linkage type leveling machine for large-size concrete panels, as shown in

[0055] (S1) Determine the specifications and number of the hydraulic rod 4 and the roller shaft 1 according to the size and leveling method of the concrete panel 2, and perform modular assembly;

[0056] (S2) After the concrete placing machine is completed, install the linkage type leveling machine on the corresponding position of the concrete panel 2 upper part, and mark the elevation line of the concrete panel 2, and at the same time, arrange the roller shaft 1 above the steel formwork 3;

[0057] (S3) Along the traveling direction of the production line, control the hydraulic rod 4 to push and pull the roller shaft 1 from one end of the concrete panel 2 to achieve the leveling effect, and at the same time, fix one end of the hydraulic rod 4 to move and stretch the whole to the other side;

[0058] (S4) When the mobile roller shaft 1 moves to the other side of the concrete panel 2, the fixed roller shaft 1 is fixed, the original fixed side is released, the hydraulic rod 4 starts to retract as a whole to the other side, while the front and rear push and pull of the hydraulic rod 4 are kept.

[0059] The above description of the embodiments is to facilitate those of ordinary skill in the art to understand and use the application. Those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the application is not limited to the above embodiments, and improvements and modifications made by those skilled in the art without departing from the scope of the application should be within the scope of protection of the application.

Claims

1. A linkage leveling machine for large and large concrete panels, wherein a plurality of exposed annular ribs (5) are provided on the outside of the concrete panel (2), characterized in that: It includes a steel template (3), a hydraulic rod (4), a roller (1), a roller (6) and a sliding track (8). The steel formwork (3) is provided on both sides of the concrete panel (2) along the length direction; the sliding track (8) is laid above the exposed annular rib (5) and connected to the steel formwork (3); the roller shaft (1) is provided at intervals on the top of the steel formwork (3); the end portion is connected to the roller (6); the roller (6) cooperates with the sliding track (8); the hydraulic rod (4) is provided between two adjacent roller shafts (1); The linkage leveling machine is applied to concrete panels (2) with a length greater than 8 meters; The surface of the roller (1) is coated with a non-stick protective layer; The concrete panel (2) has a pre-camber.

2. The linkage leveling machine for long-sized concrete panels according to claim 1, characterized in that: The roller shaft (1) and the roller (6) are connected via a roller shaft fixing component (7).

3. The linkage leveling machine for long-sized concrete panels according to claim 1, characterized in that: The sliding track (8) is provided with a groove for cooperating with the roller (6) and the roller shaft (1) for sliding.

4. The linkage leveling machine for long-sized concrete panels according to claim 1, characterized in that: A plurality of hydraulic rods (4) are provided.

5. A leveling method for a linkage leveling machine for long-sized concrete panels according to any one of claims 1 to 4, characterized in that: The following steps are involved: (S1) Determine the specifications and quantity of the hydraulic rod (4) and the roller (1) according to the size of the concrete panel (2) and the leveling method; (S2) After the concrete placing machine is finished pouring, the linkage leveling machine is installed at the corresponding position on the upper part of the concrete panel (2), and the elevation line of the concrete panel (2) is marked, and the roller (1) is set above the steel template (3); (S3) along the direction of travel of the production line, the hydraulic rod (4) is controlled from one end of the concrete panel (2) to push and pull the roller (1) forward and backward to achieve a leveling effect, and at the same time, one end of the hydraulic rod (4) is fixed to move the entire rod toward the other side for stretching; (S4) When the movable end roller (1) moves to the other side of the concrete panel (2), the fixed roller (1) is released from the original fixed side, and the hydraulic rod (4) as a whole begins to retract to the other side while maintaining the forward and backward push and pull of the hydraulic rod (4).

6. A leveling method for a linkage-type leveling machine for long-sized concrete panels according to claim 5, characterized in that: In step (S2), lubricant is applied on the top of the steel template (3) and in the groove of the sliding track (8).

7. A leveling method for a linkage-type leveling machine for long-sized concrete panels according to claim 6, characterized in that: In step (S3), the hydraulic rod (4) controls the push and pull action of the roller (1) by an automated hydraulic control system.

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