Vibration pressing type self-adjusting plastering and pressing structure in maintenance stage of ultra-high performance concrete layer
Through the vibration-pressure self-adjusting troweling structure, the vibration adjustment of the elastic layer and the counterweight shaft is utilized to solve the problem that the existing troweling structure cannot self-adjust, and the efficient and uniform troweling of the ultra-high performance concrete layer is achieved, thereby improving the construction efficiency and the quality of the concrete layer.
Patent Information
- Application Number
- CN202510925008.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2025-10-17
AI Technical Summary
The existing trowel structure cannot self-adjust and is difficult to adapt to the slight undulations and unevenness of the surface of the ultra-high performance concrete layer, resulting in uneven distribution of trowel pressure, affecting the flatness and density of the concrete and reducing durability.
It adopts a vibration-pressure self-adjusting trowel structure, including components such as longitudinal guide rails, frames, reel shafts, trowel plates and pressure shafts. Through the vibration adjustment of the elastic layer and the counterweight shaft, it realizes adaptive troweling of the concrete layer surface, ensuring real-time adjustment of the trowel force and angle.
It achieves continuous and efficient spreading of ultra-high performance concrete layers, improves construction fluency and overall efficiency, ensures the uniformity and fit of spreading, and enhances the quality and durability of the concrete layer.
Smart Images
Figure CN120798003A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of ultra-high performance concrete, specifically, to a vibration and pressure type self-adjusting troweling structure for the curing stage of an ultra-high performance concrete layer. BACKGROUND
[0002] Ultra-high performance concrete (UHPC) has excellent properties such as high strength, high durability, and low permeability, and is widely used in engineering fields such as bridges, tunnels, and high-rise buildings.
[0003] The troweling process during the curing stage of the ultra-high performance concrete layer is crucial, as it aims to make the concrete layer surface smooth and dense, reduce crack generation, and ensure structural quality and durability.
[0004] In the prior art, traditional troweling structures use fixed troweling components, which cannot adapt to the slight undulations and unevenness of the ultra-high performance concrete layer surface, resulting in uneven troweling pressure distribution. At higher parts of the concrete layer surface, the troweling pressure is too high, which may cause the concrete surface to be excessively troweled flat, even damaging the internal structure of the concrete. At lower parts of the surface, the troweling pressure is insufficient, which cannot effectively eliminate the pores and cracks on the concrete surface, affecting the smoothness and density of the concrete surface, and further reducing the durability and waterproof performance of the concrete.
[0005] In actual construction, the existing troweling structure lacks self-adjusting ability and is difficult to adapt to concrete layers of different thicknesses and surface conditions. For example, in some complex structural parts or layered concrete layers, the thickness of the concrete layer varies greatly. The fixed troweling structure cannot automatically adjust the troweling pressure and angle according to the thickness variation, resulting in unsatisfactory troweling effect, and even quality problems may be caused. SUMMARY
[0006] The present application aims to provide a vibration and pressure type self-adjusting troweling structure for the curing stage of an ultra-high performance concrete layer, which aims to solve the problem of lack of self-adjusting troweling in the prior art.
[0007] The present application is implemented as follows: a vibration and pressure type self-adjusting troweling structure for the curing stage of an ultra-high performance concrete layer, comprising longitudinal guide rails arranged on both sides of the ultra-high performance concrete layer and a vehicle frame moving along the longitudinal guide rails, the vehicle frame is arranged on the two longitudinal guide rails, and the vehicle frame is arranged across the ultra-high performance concrete layer;
[0008] A winding shaft is arranged on the vehicle frame, which rolls up the curing film on the ultra-high performance concrete layer, a troweling plate is arranged on the vehicle frame, which elastically trowels the ultra-high performance concrete layer, and a pressing shaft is arranged on the vehicle frame, which covers the curing film on the ultra-high performance concrete layer. Along the moving direction of the vehicle frame on the longitudinal guide rails, the winding shaft, the troweling plate, and the pressing shaft are sequentially and spacedly arranged.
[0009] The frame is provided with a cantilever shaft arranged transversely, a curing film roll arranged rollingly on the cantilever shaft, and the curing film roll is formed by a curing film disc roll; the end of the curing film of the curing film roll is passed around the pressing shaft, and during the movement of the frame along the longitudinal guide rail, the curing film of the curing film roll is pressed and covered on the ultra-high performance concrete by the pressing shaft.
[0010] The outer periphery of the pressing shaft is surrounded by an elastic layer, and the elastic layer has an annular cavity arranged annularly, and the annular cavity is arranged annularly along the circumference of the pressing shaft; the bottom of the annular cavity is provided with a counterweight shaft arranged movably, and the counterweight shaft is movably clamped in the annular cavity.
[0011] During the movement of the frame along the longitudinal guide rail, the elastic layer is pressed on the curing film, the counterweight shaft is extruded by the elastic layer, and the counterweight shaft reciprocates along the circumference of the annular cavity under the action of its own gravity.
[0012] Further, two ends of the annular cavity are respectively provided with arc-shaped grooves arranged annularly along the circumference of the annular cavity, and the end of the counterweight shaft is movably arranged in the arc-shaped groove; during the reciprocating vibration of the counterweight shaft along the circumference of the annular cavity, the end of the counterweight shaft reciprocates along the arc-shaped groove.
[0013] Further, the outer periphery of the counterweight shaft is provided with a plurality of axial grooves arranged annularly along the circumference of the counterweight shaft, the axial grooves are filled with elastic strips, the inner end of the elastic strip has a deformation interval with the bottom of the axial groove, and the outer end of the elastic strip extends to the outside of the axial groove; during the reciprocating vibration of the counterweight shaft along the circumference of the annular cavity, the elastic strip is extruded and compressed and deformed in the axial groove.
[0014] Further, the front end of the frame extends outwardly with a front extension plate, the winding shaft is arranged on the front extension plate, the front end of the front extension plate is provided with a front transition shaft arranged rollingly, and the curing film on the ultra-high performance concrete layer is wound on the winding shaft after passing around the front transition shaft.
[0015] Further, the front end of the front extension plate protrudes with two front mounting plates arranged at intervals, and the front transition shaft is arranged between the two front mounting plates; the front mounting plate is provided with a front mounting hole, a front elastic ring is sleeved in the front mounting hole, the winding shaft has a winding end, the winding end is inserted into the front mounting hole, and the front elastic ring is sleeved on the winding end.
[0016] During the movement of the frame along the longitudinal guide rail, the curing film on the ultra-high performance concrete layer passes around the front transition shaft and presses the front transition shaft to reciprocate radially along the front elastic ring.
[0017] Further, the outer periphery of the winding shaft is provided with a plurality of balloon strips in a bulging state, the plurality of balloon strips are arranged in a spaced manner along the circumferential direction of the winding shaft, and the balloon strips are arranged in an extending manner along the axial direction of the winding shaft, and there is a spacing groove between adjacent balloon strips.
[0018] During the process of winding the curing film on the super high performance concrete layer by the winding shaft, the curing film is wound on the winding shaft to form a winding film layer, and the winding film layer is compressed and deformed by pressing the plurality of balloon strips.
[0019] Further, the rear end of the vehicle frame extends outwardly with a rear extension plate, the cantilever shaft is arranged above the rear extension plate, the pressing shaft is arranged below the rear extension plate, the rear end of the rear extension plate is provided with a rear transition shaft arranged in a rolling manner, and the curing film of the curing film roll on the cantilever shaft sequentially passes through the rear transition shaft and the pressing shaft.
[0020] Further, along the moving direction of the longitudinal guide rail of the vehicle frame, the bottom of the vehicle frame is provided with a plurality of tamping plates arranged in a spaced manner, and along the front-to-rear direction of the tamping plate, the tamping plate is arranged in a downwardly inclined manner, the rear end of the tamping plate is formed with a tamping portion arranged in a strip shape, and the tamping portion is arranged in an arc surface bending manner.
[0021] During the movement of the vehicle frame along the longitudinal guide rail, the tamping portion is pressed on the super high performance concrete layer, and the super high performance concrete layer is elastically tamped.
[0022] Further, the bottom of the vehicle frame is connected with two telescopic shafts, a spring is sleeved on the telescopic shaft, the upper end of the spring is fixedly arranged, and the lower end of the spring is connected to the tamping plate.
[0023] During the movement of the vehicle frame along the longitudinal guide rail, the tamping portion elastically tamps the super high performance concrete layer, the tamping plate longitudinally reciprocates, the two telescopic shafts longitudinally reciprocate, and the two springs reciprocate longitudinally compress or longitudinally stretch.
[0024] Further, the tamping plate has a top surface arranged in a same direction, the top surface is arranged in a same direction with the tamping plate, an inclined groove is arranged on the top surface, a free shaft body arranged in a movable manner is arranged in the inclined groove, and the free shaft body is arranged in an extending manner along the width direction of the inclined groove.
[0025] Along the inclined direction of the inclined groove from top to bottom, the upper end of the inclined groove forms a high end surface, and the lower end of the inclined groove forms a low end surface; the free shaft body is located in the middle of the inclined groove, the free shaft body is connected with the high end surface through a plurality of elastic belts, and the free shaft body is arranged in a spaced manner with the low end surface.
[0026] The free shaft body reciprocates in the inclined groove synchronously with the troweling plate to apply a downward vibration pressure to the troweling plate in the process that the troweling part of the troweling plate elastically trowels the ultra-high performance concrete layer.
[0027] Compared with the prior art, the troweling structure provided by the application has the following technical advantages:
[0028] 1) When the vehicle frame moves along the longitudinal guide rail, the winding shaft, the troweling plate and the pressing shaft work in turn, and the cooperation is tacit, so that continuous and efficient troweling of the ultra-high performance concrete layer can be realized, thereby improving the smoothness and overall efficiency of construction.
[0029] 2) When the vehicle frame moves on the longitudinal guide rail, the elastic layer on the outer periphery of the pressing shaft tightly abuts against the curing film, the counterweight shaft reciprocates in the circumferential direction in the annular cavity under the influence of the elastic layer extrusion and its own gravity, and drives the troweling plate to swing to adaptively adjust the troweling; this process can adjust the troweling degree and angle in real time according to the slight ups and downs of the concrete layer surface, ensure uniform troweling and high adhesion, effectively solve the problem that the troweling structure cannot be self-adjusted, resulting in poor troweling effect, and greatly improve the flatness and compactness of the ultra-high performance concrete layer, which is of great significance to enhance the quality and durability.
[0030] 3) When facing different construction environments and changes in the thickness of the concrete layer, the self-adjusting troweling structure can stably exert the troweling function by means of the adaptive vibration of the counterweight shaft without frequent manual intervention, thereby reducing the construction difficulty and labor cost. DETAILED DESCRIPTION
[0031] Figure 1 is a front view of the self-adjusting troweling structure for the curing stage of the ultra-high performance concrete layer provided by the application;
[0032] Figure 2 is a cross-sectional view of the pressing shaft provided by the application;
[0033] Figure 3 is a cross-sectional view of the annular cavity provided by the application;
[0034] Figure 4 is a cross-sectional view of the counterweight shaft provided by the application;
[0035] Figure 5 is a cross-sectional view of the front transition shaft provided by the application;
[0036] Figure 6 is a cross-sectional view of the air bag strip provided by the application;
[0037] Figure 7 is a cross-sectional view of the troweling plate provided by the application;
[0038] In the figure: super high performance concrete layer 100, frame 101, cantilever shaft 102, curing film roll 103, rear extension plate 104, rear transition shaft 105;
[0039] Pushing shaft 200, elastic layer 201, annular cavity 202, counterweight shaft 203, arc-shaped slot 204, elastic strip 205, deformation interval 206;
[0040] Winding shaft 300, front extension plate 301, front transition shaft 302, front mounting plate 303, elastic ring 304, winding end 305, air bag strip 306;
[0041] Pressing plate 400, telescopic shaft 401, spring 402, inclined slot 403, free shaft body 404, high end surface 405, low end surface 406, elastic belt 407. DETAILED DESCRIPTION
[0042] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.
[0043] The implementation of the present application is described in detail below in combination with specific examples.
[0044] The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that the orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes, and cannot be understood as a limitation of the present patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0045] Referring to Figures 1-7 The preferred embodiment provided by the present application is shown.
[0046] The super high performance concrete layer curing stage vibration pressing type self-adjusting pressing structure comprises longitudinal guide rails arranged on both sides of the super high performance concrete layer 100 and a frame 101 moving along the longitudinal guide rails, the frame 101 is arranged on the two longitudinal guide rails, and the frame 101 is arranged across the super high performance concrete layer 100;
[0047] The rolling arrangement is provided on the frame 101 and the rolling shaft 300 is arranged to roll up the curing film roll 103 on the ultra-high performance concrete layer 100, the troweling plate 400 is arranged to elastically trowel the ultra-high performance concrete layer 100, and the pressing shaft 200 is arranged to cover the curing film on the ultra-high performance concrete layer 100, and the rolling shaft 300, the troweling plate 400 and the pressing shaft 200 are sequentially and spacedly arranged along the moving direction of the longitudinal guide rail of the frame 101.
[0048] The cantilever shaft 102 is arranged transversely on the frame 101, the curing film roll 103 is sleeved on the cantilever shaft 102 in a rolling arrangement, and the curing film roll 103 is formed by a curing film disc roll; the end of the curing film of the curing film roll 103 is wound around the pressing shaft 200, and during the movement of the frame 101 along the longitudinal guide rail, the curing film of the curing film roll 103 is pressed and covered on the ultra-high performance concrete by the pressing shaft 200.
[0049] The elastic layer 201 is arranged around the outer periphery of the pressing shaft 200, the elastic layer 201 has annular cavities 202 arranged in a ring shape, and the annular cavities 202 are arranged around the circumference of the pressing shaft 200; the bottom of the annular cavity 202 is provided with a counterweight shaft 203 arranged movably, and the counterweight shaft 203 is movably clamped in the annular cavity 202.
[0050] During the movement of the frame 101 along the longitudinal guide rail, the elastic layer 201 is pressed on the curing film, the counterweight shaft 203 is extruded by the elastic layer 201 and reciprocally vibrates along the circumference of the annular cavity 202 under the action of its own gravity.
[0051] The above-mentioned self-adjusting troweling structure for the curing stage of the ultra-high performance concrete layer 100 has the following significant technical advantages:
[0052] 1) During the movement of the frame 101 along the longitudinal guide rail, the rolling shaft 300, the troweling plate 400 and the pressing shaft 200 work in turn, and cooperate with each other, so that continuous and efficient troweling of the ultra-high performance concrete layer 100 can be realized, thereby improving the smoothness and overall efficiency of the construction;
[0053] 2) During the movement of the frame 101 on the longitudinal guide rail, the elastic layer 201 around the outer periphery of the pressing shaft 200 closely contacts the curing film, the counterweight shaft 203 is extruded by the elastic layer 201 and reciprocally vibrates along the circumference under the action of its own gravity, and the troweling plate 400 is driven to swing and trowel in a self-adaptive manner; this process can adjust the troweling force and angle in real time according to the slight ups and downs of the surface of the concrete layer, so as to ensure uniform troweling and high adhesion, and effectively solve the problem of poor troweling effect caused by the non-self-adjusting troweling structure, thereby greatly improving the flatness and compactness of the ultra-high performance concrete layer 100, and being of great significance to enhancing the quality and durability thereof;
[0054] 3) In the face of different construction environment and concrete layer thickness changes, the vibration and pressure type self-adjusting troweling and pressing structure can rely on the self-adaptive vibration adjustment of the counterweight shaft 203 to stably play the troweling and pressing function without frequent manual intervention, thereby reducing the construction difficulty and labor cost.
[0055] In the embodiment, the two ends of the annular cavity 202 are respectively provided with arc-shaped grooves 204, the arc-shaped grooves 204 are arranged along the circumference of the annular cavity 202, and the end portion of the counterweight shaft 203 is movably arranged in the arc-shaped groove 204; in the process of reciprocating vibration of the counterweight shaft 203 along the circumference of the annular cavity 202, the end portion of the counterweight shaft 203 reciprocates along the arc-shaped groove 204.
[0056] The arc-shaped groove 204 limits and guides the end portion of the counterweight shaft 203, so that the counterweight shaft 203 can orderly reciprocate in the annular cavity 202, effectively improving the regularity and stability of vibration, and further making the swinging troweling of the troweling and pressing plate 400 more uniform and stable.
[0057] In the embodiment, the outer periphery of the counterweight shaft 203 is provided with a plurality of axial grooves, the plurality of axial grooves are arranged along the circumference of the counterweight shaft 203, the axial grooves are filled with elastic strips 205, the inner end of the elastic strip 205 and the bottom of the axial groove have a deformation interval 206, and the outer end of the elastic strip 205 extends to the outside of the axial groove; in the process of reciprocating vibration of the counterweight shaft 203 along the circumference of the annular cavity 202, the elastic strip 205 is extruded and compressed and deformed towards the axial groove.
[0058] During the vibration of the counterweight shaft 203, the elastic strip 205 increases the elastic properties of the counterweight shaft 203, when the counterweight shaft 203 is extruded, the elastic strip 205 can further buffer the pressure and generate an elastic restoring force in the movement direction of the counterweight shaft 203, so that the vibration of the counterweight shaft 203 is more soft and elastic, which helps to improve the adhesion and troweling effect of the troweling and pressing plate 400 on the surface of the ultra-high performance concrete layer 100, and at the same time, the deformation interval 206 of the elastic strip 205 can flexibly adjust the deformation degree when it is stressed, so as to adapt to different extrusion intensities, and further enhance the adaptability of the vibration of the counterweight shaft 203.
[0059] In the embodiment, the front end of the vehicle frame 101 extends outwardly with a front extension plate 301, the winding shaft 300 is arranged on the front extension plate 301, the front end of the front extension plate 301 is provided with a front transition shaft 302 arranged in a rolling manner, and the curing film on the ultra-high performance concrete layer 100 is wound on the winding shaft 300 after passing through the front transition shaft 302.
[0060] By setting the front transition shaft 302, a smooth transition path is provided for the introduction of the curing film, so that the curing film can be more smoothly guided from the surface of the ultra-high performance concrete layer 100 to the winding shaft 300, reducing the wrinkles, deviations or pulling that may occur in the curing film during the winding process, ensuring the stability and continuity of the winding process, thereby ensuring the flatness and tightness of the curing film after winding, which is conducive to the smooth progress of subsequent spreading and pressing operations.
[0061] In this embodiment, the front end of the front extension plate 301 is provided with two spaced-apart front mounting plates 303, and the front transition shaft 302 is arranged between the two front mounting plates 303; the front mounting plates 303 are provided with front mounting holes, and the front elastic ring 304 is sleeved in the front mounting holes. The end of the winding shaft 300 has a winding end 305, which is inserted into the front mounting holes, and the front elastic ring 304 is sleeved on the winding end 305;
[0062] When the vehicle frame 101 moves along the longitudinal guide rail, the curing film on the ultra-high performance concrete layer 100 bypasses the front transition shaft 302 and presses the front transition shaft 302 to reciprocate along the radial direction of the front elastic ring 304.
[0063] Through the setting of the front elastic ring 304, the front transition shaft 302 can produce a certain elastic displacement in the radial direction when it is pressed by the curing film. This elastic vibration can effectively buffer the impact force of the curing film on the front transition shaft 302. At the same time, the curing film has a certain degree of relaxation when passing through the front transition shaft 302, avoiding the curing film from breaking or uneven winding due to excessive tension, thereby further improving the winding quality and stability.
[0064] In this embodiment, the outer circumference of the winding shaft 300 is provided with a plurality of bulging airbag strips 306. The plurality of airbag strips 306 are arranged around the circumference of the winding shaft 300 at intervals. The airbag strips 306 extend along the axial direction of the winding shaft 300, and there are spacing grooves between adjacent airbag strips 306.
[0065] When the winding shaft 300 is winding the curing film on the ultra-high performance concrete layer 100 , the curing film is wound around the winding shaft 300 to form a winding film layer. The winding film layer presses against the multiple airbag strips 306 to be compressed and deformed.
[0066] In this way, the winding film layer wound on the winding shaft 300 can be in a moderate elastic state, so that the winding of the curing film can be automatically adjusted to avoid the curing film deviating from the winding direction or getting stuck due to uneven tension, thereby improving the reliability and automation of the winding.
[0067] In this embodiment, the rear end of the frame 101 extends outwardly with a rear extension plate 104, the cantilever shaft 102 is arranged above the rear extension plate 104, the pressing shaft 200 is arranged below the rear extension plate 104, the rear end of the rear extension plate 104 is provided with a rear transition shaft 105 arranged in a rolling manner, and the curing film of the curing film roll 103 on the cantilever shaft 102 sequentially passes through the rear transition shaft 105 and the pressing shaft 200.
[0068] By arranging the rear transition shaft 105, a smooth guide path is provided for the curing film after being drawn out from the curing film roll 103 on the cantilever shaft 102, so that the curing film can accurately pass through the pressing shaft 200 and be pressed and covered on the ultra-high performance concrete layer 100, ensuring the flatness and stability of the curing film during the unwinding process, and avoiding the problems of twisting, folding or relaxation of the curing film during unwinding.
[0069] In this embodiment, along the moving direction of the longitudinal guide rail of the frame 101, a plurality of pressing plates 400 are arranged on the bottom of the frame 101, and the pressing plates 400 are sequentially and spaced apart; along the front-to-rear direction of the pressing plate 400, the pressing plate 400 is arranged downwardly inclined, and the rear end of the pressing plate 400 is formed with a strip-shaped pressing portion arranged in an arc surface.
[0070] During the movement of the frame 101 along the longitudinal guide rail, the pressing portion is pressed on the ultra-high performance concrete layer 100, and the ultra-high performance concrete layer 100 is elastically pressed.
[0071] During the movement of the frame 101, the pressing plate 400 can sequentially and elastically press the concrete layer in stages, and the arc-curved pressing portion can better fit the surface of the concrete layer, achieving more uniform and delicate pressing effect, effectively improving the flatness and compactness of the surface of the ultra-high performance concrete layer 100, and enhancing the overall structural performance.
[0072] In this embodiment, the bottom of the frame 101 is connected with two telescopic shafts 401, a spring 402 is sleeved on the telescopic shaft 401, the upper end of the spring 402 is fixedly arranged, and the lower end of the spring 402 is connected to the pressing plate 400.
[0073] During the movement of the frame 101 along the longitudinal guide rail, the pressing portion elastically presses the ultra-high performance concrete layer 100, the pressing plate 400 longitudinally reciprocates, the two telescopic shafts 401 longitudinally reciprocate, and the two springs 402 reciprocate longitudinally.
[0074] The cooperation of the telescopic shaft 401 and the spring 402 provides the longitudinal elastic support for the troweling plate 400, so that the troweling plate 400 can be self-adaptively adjusted according to the ups and downs of the surface of the ultra-high performance concrete layer 100 during troweling the ultra-high performance concrete layer 100, that is, during the troweling process, when the troweling plate 400 is subjected to the reaction force of the ultra-high performance concrete layer 100, the spring 402 is compressed, and the telescopic shaft 401 is telescoped, so as to adjust the height position of the troweling plate 400, ensure the uniformity and stability of the troweling pressure, and further improve the uniformity of the troweling effect and the adhesion to the ultra-high performance concrete layer 100.
[0075] In the embodiment, the troweling plate 400 has a top surface arranged in the same direction, and the top surface is arranged in the same direction as the troweling plate 400; the top surface is provided with an inclined groove 403, and the inclined groove 403 is provided with a freely arranged free shaft body 404 extending along the width direction of the inclined groove 403;
[0076] Along the inclined direction of the inclined groove 403 from top to bottom, the upper end of the inclined groove 403 forms a high end surface 405, and the lower end of the inclined groove 403 forms a low end surface 406; the free shaft body 404 is located in the middle of the inclined groove 403, and the free shaft body 404 is connected with the high end surface 405 through a plurality of elastic belts 407, and the free shaft body 404 is arranged in a spaced manner between the low end surface 406;
[0077] During the process that the troweling part of the troweling plate 400 elastically trowels the ultra-high performance concrete layer 100, the free shaft body 404 reciprocates in the inclined groove 403 synchronously with the troweling plate 400 to apply a downward vibration pressure to the troweling plate 400.
[0078] When the free shaft body 404 vibrates in the inclined groove 403 with the troweling plate 400, the stretching and contraction of the elastic belts 407 can generate a downward vibration pressure while the troweling plate 400 elastically trowels the ultra-high performance concrete layer 100, and such vibration pressure is helpful to compact the surface of the ultra-high performance concrete layer 100 and improve the compactness and flatness of the ultra-high performance concrete layer 100, and meanwhile, the vibration of the free shaft body 404 can enhance the troweling effect of the troweling plate 400, so that the troweling of the troweling plate 400 to the ultra-high performance concrete layer 100 is more uniform and deep, and the maintenance quality of the ultra-high performance concrete layer 100 is further improved.
[0079] The above only describes the preferred embodiments of the present application and should not be used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. The vibration-type self-adjusting trowel structure in the curing stage of ultra-high performance concrete layer is characterized by: The vehicle comprises longitudinal guide rails respectively arranged on both sides of the ultra-high performance concrete layer and a vehicle frame moving along the longitudinal guide rails, wherein the vehicle frame is arranged on the two longitudinal guide rails and is arranged across the ultra-high performance concrete layer; The frame is provided with a reel that is arranged in a rolling manner and rolls up the curing film on the ultra-high performance concrete layer, a pressing plate that elastically presses the ultra-high performance concrete layer, and a pressing shaft that covers the curing film on the ultra-high performance concrete layer. Along the moving direction of the frame on the longitudinal guide rail, the reel, the pressing plate, and the pressing shaft are sequentially arranged at intervals. The frame is provided with a transversely arranged cantilever shaft, on which a rolling curing film roll is sleeved, the curing film roll being formed by winding the curing film; the end of the curing film of the curing film roll passes around the pressing shaft, and when the frame moves along the longitudinal guide rail, the curing film of the curing film roll is pressed by the pressing shaft to cover the ultra-high performance concrete; The outer circumference of the pressure shaft is surrounded by an elastic layer, and the elastic layer has an annular cavity arranged in an annular manner. The annular cavity is arranged around the circumference of the pressure shaft; a movably arranged counterweight shaft is provided at the bottom of the annular cavity, and the counterweight shaft is movably clamped in the annular cavity; When the vehicle frame moves along the longitudinal guide rail, the elastic layer presses against the curing film, and the counterweight shaft is squeezed by the elastic layer and subjected to its own gravity, and vibrates back and forth along the circumference of the annular cavity.
2. The ultra-high performance concrete layer curing stage vibration pressure type self-adjusting trowel structure according to claim 1, characterized in that: An arc groove is provided at each end of the annular cavity, and the arc groove is arranged around the circumference of the annular cavity. The end of the counterweight shaft is movably placed in the arc groove; when the counterweight shaft vibrates back and forth along the circumference of the annular cavity, the end of the counterweight shaft moves back and forth along the arc groove.
3. The vibration-type self-adjusting trowel structure for ultra-high performance concrete layer curing stage according to claim 1, characterized in that: The outer circumference of the counterweight shaft is provided with a plurality of axial grooves, and the plurality of axial grooves are arranged around the circumference of the counterweight shaft at intervals. The axial grooves are filled with elastic strips, and there is a deformation gap between the inner end of the elastic strip and the bottom of the axial groove, and the outer end of the elastic strip extends to the outside of the axial groove; during the circumferential reciprocating vibration of the counterweight shaft along the annular cavity, the elastic strip is squeezed and compressed and deformed toward the axial groove.
4. The ultra-high performance concrete layer curing stage vibration pressure self-adjusting trowel structure according to any one of claims 1 to 3, characterized in that: A front extension plate extends outward from the front end of the frame, the winding shaft is arranged on the front extension plate, and a front transition shaft arranged in a rolling manner is provided at the front end of the front extension plate. The curing film on the ultra-high performance concrete layer passes around the front transition shaft and is wound on the winding shaft.
5. The vibration-type self-adjusting trowel structure for ultra-high performance concrete layer curing stage according to claim 4, characterized in that: The front end of the front extension plate is convexly provided with two spaced front mounting plates, and the front transition shaft is arranged between the two front mounting plates; the front mounting plate is provided with a front mounting hole, and a front elastic ring is sleeved in the front mounting hole; the end of the winding shaft has a winding end head, and the winding end head is inserted into the front mounting hole, and the front elastic ring is sleeved on the winding end head; When the vehicle frame moves along the longitudinal guide rail, the curing film on the ultra-high performance concrete layer bypasses the front transition shaft, pressing the front transition shaft to reciprocate along the radial direction of the front elastic ring.
6. The ultra-high performance concrete layer curing stage vibration pressure type self-adjusting trowel structure according to any one of claims 1 to 3, characterized in that: The outer circumference of the winding shaft is provided with a plurality of airbag strips in a bulging state, the plurality of airbag strips are arranged around the circumference of the winding shaft at intervals, the airbag strips extend along the axial direction of the winding shaft, and there are spacing grooves between adjacent airbag strips; When the winding shaft is in the process of winding the curing film on the ultra-high performance concrete layer, the curing film is wound on the winding shaft to form a winding film layer, and the winding film layer presses the multiple airbag strips to be compressed and deformed.
7. The ultra-high performance concrete layer curing stage vibration pressure type self-adjusting trowel structure according to any one of claims 1 to 3, characterized in that: A rear extension plate is extended outward from the rear end of the frame, the cantilever shaft is arranged above the rear extension plate, the pressure shaft is arranged below the rear extension plate, and a rolling rear transition shaft is provided at the rear end of the rear extension plate, and the curing film of the curing film roll on the cantilever shaft passes around the rear transition shaft and the pressure shaft in sequence.
8. The ultra-high performance concrete layer curing stage vibration pressure self-adjusting trowel structure according to any one of claims 1 to 3, characterized in that: Along the moving direction of the frame on the longitudinal guide rail, a plurality of wiping plates are provided at the bottom of the frame, and the plurality of wiping plates are arranged in sequence and at intervals; along the direction from front to back of the wiping plates, the wiping plates are arranged downwardly and obliquely, and a strip-shaped wiping portion is formed at the rear end of the wiping plates, and the wiping portion is arranged in an arc shape; When the vehicle frame moves along the longitudinal guide rail, the pressing portion presses against the ultra-high performance concrete layer and elastically presses the ultra-high performance concrete layer.
9. The vibration-type self-adjusting trowel structure for ultra-high performance concrete layer curing stage according to claim 8, characterized in that: The bottom of the frame is connected to two telescopic shafts, and a spring is sleeved on the telescopic shaft. The upper end of the spring is fixedly arranged, and the lower end of the spring is connected to the pressing plate. During the movement of the vehicle frame along the longitudinal guide rail, the pressing part elastically presses the ultra-high performance concrete layer, the pressing plate vibrates back and forth longitudinally, the two telescopic shafts reciprocate and retract longitudinally, and the two springs reciprocate and compress or stretch longitudinally.
10. The ultra-high performance concrete layer curing stage vibration pressure type self-adjusting trowel structure according to any one of claims 1 to 3, characterized in that: The smearing plate has a top surface arranged in a direction, and the top surface is arranged in the same direction as the smearing plate; an inclined groove is provided on the top surface, and a free shaft body is movably arranged in the inclined groove, and the free shaft body extends along the width direction of the inclined groove; Along the inclined direction of the inclined groove from top to bottom, the upper end of the inclined groove forms a high end surface, and the lower end of the inclined groove forms a low end surface; the free shaft body is located in the middle of the inclined groove, and the free shaft body is connected to the high end surface by a plurality of elastic bands, and the free shaft body and the low end surface are arranged at intervals; During the process of the troweling portion of the troweling plate elastically troweling the ultra-high performance concrete layer, the free shaft body reciprocates synchronously with the troweling plate in the inclined groove to apply downward vibration pressure to the troweling plate.