Concrete slicking device

Abstract

The utility model discloses a concrete slicking device, which belongs to the technical field of rock mining and comprises an annular track, a sliding trolley and a roller component. The sliding trolley is in sliding fit with the annular rail, and a sliding driving piece for driving the sliding trolley to move along the outer side of the annular rail is arranged on the sliding trolley; the roller assembly comprises a slicking roller in running fit with the sliding trolley and a roller driving mechanism used for driving the slicking roller to rotate, and the axis of the slicking roller is parallel to the axis of the annular rail. The scraping roller is located on the side, away from the annular rail, of the sliding trolley, and a scraper used for scraping concrete is arranged on the scraping roller in the length direction. According to the device, concrete can be stricken after spraying and mixing construction, so that the thickness of the concrete is kept uniform, and the construction quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rock mining, in particular to a concrete scraping device. Background Art

[0002] At present, the drilling and blasting method is mainly used in tunnel and mining projects. After the tunnel is blasted and excavated, secondary lining operations are usually required. The current secondary lining construction method of tunnels mainly adopts the method of assembling by lining trolleys or prefabricated segments. The use of lining trolleys or prefabricated segments for secondary lining usually involves higher material and transportation costs. Prefabricated segments need to be made in the factory and transported to the site. This process requires more logistics support and costs. For tunnels with complex geology or many curves, the adaptability of prefabricated segments may be poor.

[0003] Patent CN116641730A discloses a tunnel support device, including a circular track, one end of the frame is connected to a driving mechanism, and the other end of the frame is equipped with a nozzle and a sliding template, the outer plate surface of the sliding template faces the inner wall of the tunnel, and there is a gap between the outer plate surface of the sliding template and the inner wall of the tunnel. The nozzle is located at the edge of the sliding template, and the nozzle faces the gap and sprays concrete into the gap. By using a concrete nozzle to directly spray the tunnel wall, flexible construction can be carried out according to the actual geology and shape of the tunnel, and various complex situations can be adapted, especially in areas with irregular terrain or special requirements. However, the thickness of the sprayed concrete may be uneven during the construction process, and the uneven thickness may cause inconsistent structural strength of the tunnel lining, especially in areas with heavy loads or complex geological conditions, which may increase stress concentration in the local structure and cause cracks or other structural damage. Utility Model Content

[0004] The utility model provides a concrete scraping device to solve the technical problem of uneven thickness in shotcrete construction.

[0005] According to one aspect of the utility model, a concrete scraping device is provided, comprising an annular track, a sliding trolley and a roller assembly; the sliding trolley is slidably matched with the annular track, and the sliding trolley is provided with a sliding drive member for driving the sliding trolley to move along the outer side of the annular track; the roller assembly comprises a scraping roller rotatably matched with the sliding trolley and a roller driving mechanism for driving the scraping roller to rotate, and the axis of the scraping roller is parallel to the axis of the annular track; the scraping roller is located on a side of the sliding trolley away from the annular track, and a scraper for scraping concrete is provided on the scraping roller along the length direction.

[0006] Optionally, a mounting slot is provided on the scraping roller, and a boss that cooperates with the mounting slot is provided at the bottom of the scraper.

[0007] Optionally, a right-angled blade is formed on one side of the scraper, and an arc-shaped blade is formed on the other side.

[0008] Optionally, the sliding trolley is provided with a lifting mechanism for driving the scraping roller to move radially along the annular track.

[0009] Optionally, the lifting mechanism is a cylinder mechanism, and the scraping roller is driven to move radially along the annular track by the extension and retraction of the cylinder.

[0010] Optionally, the lifting mechanism includes a bottom bracket installed on a sliding trolley, and a first oil cylinder and a second oil cylinder are radially arranged on the bottom bracket along the circular track, and telescopic ends of the first oil cylinder and the second oil cylinder are connected to a sliding end plate for supporting the scraping roller.

[0011] Optionally, the roller driving mechanism includes a motor, an output shaft and a connecting shaft, wherein the output shaft and the connecting shaft are respectively located at two ends of the scraping roller and are fixedly connected to the central axis of the scraping roller through splines, and the output shaft is connected to the motor at one end away from the scraping roller.

[0012] Optionally, bell-shaped covers are respectively provided at both ends of the sliding trolley, roller bearings are provided in the bell-shaped covers, and the output shaft and the connecting shaft are respectively provided in the bell-shaped covers and connected to the corresponding roller bearings.

[0013] Optionally, the annular track includes a first track ring and a second track ring arranged in parallel, one end of the sliding trolley is slidably matched with the first track ring, and the other end of the sliding trolley is slidably matched with the second track ring.

[0014] Optionally, a plurality of scrapers are evenly spaced along the circumference of the scraping roller, and the arc-shaped blades of all the scrapers are arranged in the same direction.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. When the scraping drum rotates, the scraper can scrape the concrete to make it flat, so that the concrete layer of the spray-mixed construction can maintain a uniform thickness. The sliding trolley moves along the circular track to drive the scraping drum to make contour movement along the tunnel contour, so that the cement layer in the entire tunnel can be scraped flat by the scraper;

[0017] 2. The right-angle blade is designed for cutting or trimming hardened or partially hardened concrete, and the curved blade is designed for processing softer or fresh concrete. This versatile scraper design allows construction workers to choose the most suitable tool according to the hardness of the concrete and project needs, effectively improving work efficiency and construction quality;

[0018] 3. The lifting mechanism can drive the scraping drum to move radially along the circular track, so that the scraping drum can always fit the contour of the tunnel, and the concrete in the tunnel can be scraped even when the circular track track and the tunnel contour do not completely match.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of a concrete scraping device of the utility model;

[0022] Figure 2 It is a schematic diagram of the structural composition of the concrete scraping device in a specific implementation mode of the utility model;

[0023] Figure 3 It is a schematic diagram of the structural composition of the scraping roller in a specific embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the scraper structure in a specific implementation mode of the utility model;

[0025] Figure 5 It is a schematic diagram of the structural composition of the jacking mechanism in a specific implementation manner of the utility model;

[0026] Figure 6 It is a schematic diagram of the structure of the drive assembly in a specific implementation manner of the utility model.

[0027] Legend:

[0028] 1. Annular track; 2. Sliding trolley; 3. Scraping roller; 4. Roller driving mechanism; 41. Motor; 42. Output shaft; 43. Connecting shaft; 44. Bell cover; 5. Mounting slot; 6. Boss; 7. Scraper; 8. Lifting mechanism; 81. Bottom bracket; 82. First oil cylinder; 83. Second oil cylinder; 84. Sliding end plate. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0030] The following is combined with Figure 1-6 This application is described in further detail.

[0031] The embodiment of the present application discloses a concrete scraping device.

[0032] Reference Figure 1 and Figure 2 The concrete scraping device includes a circular track 1, a sliding trolley 2 and a roller assembly; the sliding trolley 2 is slidably matched with the circular track 1, and a sliding drive member is provided on the sliding trolley 2 to drive the sliding trolley 2 to move along the outer side of the circular track 1. The circular track 1 is a fixed structure installed at the construction site, which is usually designed and laid according to the specific structural contour of the tunnel or the construction to be constructed. Its main function is to provide a stable and predictable path for the sliding trolley 2 to run smoothly. The shape and size of the circular track 1 will be precisely designed according to the construction needs to ensure that the sliding trolley 2 can move along the accurate trajectory, which is particularly important for maintaining the uniform thickness of the concrete layer and adapting to complex contours. The sliding trolley 2 is a mobile platform installed on the circular track 1. It cooperates with the track through wheels or other sliding mechanisms to ensure smooth and controllable movement. The main task of the sliding trolley 2 is to carry and accurately control the position of the roller assembly to ensure that it can move along the preset track. The sliding drive (such as an electric motor 41 or a hydraulic system) installed on the trolley drives the trolley to move along the outer side of the circular track 1. This driving method allows the trolley to move forward or backward on the track to adapt to the construction progress and actual needs. The roller is connected to the rotating mechanism of the sliding trolley 2 (usually driven by a motor or hydraulic mechanism) so that the roller rotates when moving. The rotation of the roller compacts and flattens the concrete, while the movement of the sliding trolley 2 ensures that the entire concrete surface can be treated evenly.

[0033] The working process is as follows: in the preparation stage, the sliding trolley 2 carries the roller assembly to the starting position on the circular track 1; in the operation stage, when the construction starts, the sliding drive is started to push the sliding trolley 2 to move along the circular track 1. As the trolley moves, the roller of the roller assembly rotates, and the scraper 7 contacts and smoothes the concrete surface. After the concrete layer is evenly scraped, the sliding trolley 2 continues to move along the track until the entire area is treated.

[0034] Reference Figure 3The roller assembly includes a scraping roller 3 that rotates with the sliding trolley 2 and a roller driving mechanism 4 for driving the scraping roller 3 to rotate. The axis of the scraping roller 3 is parallel to the axis of the circular track 1; the scraping roller 3 is located on the side of the sliding trolley 2 away from the circular track 1, and a scraper 7 for scraping concrete is arranged along the length direction on the scraping roller 3. The axis of the scraping roller 3 is arranged parallel to the axis of the circular track 1 to ensure that the roller can rotate smoothly when the sliding trolley 2 moves along the circular track 1. This design allows the scraping roller 3 to always maintain a correct posture relative to the concrete surface. The roller is equipped with a plurality of scrapers 7 distributed along its length direction. These scrapers 7 scrape the concrete when the roller rotates, effectively remove the excess concrete on the surface and compact the surface layer, so that the concrete layer reaches a predetermined thickness and flatness. The roller driving mechanism 4 is usually composed of a motor 41, which transmits power to the roller through a transmission system to drive the roller to rotate. This configuration allows the roller to rotate at different speeds to adapt to different construction conditions and concrete hardening speeds, thereby ensuring a uniform and smooth concrete surface. In actual operation, the sliding trolley 2 moves on the circular track 1, and the driving roller rotates on the axis parallel to its track, while the scraper 7 on the roller is responsible for leveling the concrete. In this way, the device can efficiently and evenly complete the leveling operation of large-area concrete.

[0035] Reference Figure 4 , a mounting slot 5 is provided on the scraping drum 3, and a boss 6 is provided at the bottom of the scraper 7 to match the mounting slot 5. Through this matching mode, the scraper 7 can be accurately embedded in the slot of the drum, avoiding looseness or displacement when scraping concrete, thereby improving the stability and accuracy during the construction process. In addition, this design also simplifies the replacement and maintenance process of the scraper 7, allowing construction personnel to more conveniently and quickly replace different types of scrapers 7 to cope with changes in concrete hardness and construction requirements, thereby effectively improving construction efficiency and quality.

[0036] Specifically, the scraper 7 is fixed to the scraping roller 3 by bolts, ensuring that the scraper 7 can be firmly attached to the roller during use, thereby avoiding loosening and falling off, providing a stable scraping effect, and also facilitating construction personnel to quickly and easily disassemble and install the scraper 7 when it is necessary to replace it, thereby improving construction efficiency and ensuring the safe operation of the equipment.

[0037] The scraper 7 has a right-angled blade on one side and a curved blade on the other side. This design provides a multifunctional scraping effect, allowing construction workers to select the most suitable blade according to the hardness of the concrete and construction requirements, wherein the right-angled blade is used to cut or trim hardened or partially hardened concrete, while the curved blade is used to process softer or fresh concrete, thereby effectively improving work efficiency and construction quality.

[0038] A plurality of scrapers 7 are evenly spaced along the circumference of the scraping drum 3, and the arc-shaped blades of all scrapers are arranged in the same direction. When the drum rotates, each scraper 7 can evenly contact and scrape the concrete surface, thereby achieving a continuous and uniform scraping effect. During operation, the rotation of the drum drives the scrapers 7 to continuously scrape the concrete surface, and each scraper 7 cuts the concrete with the arc-shaped blades in the same direction, making the surface treatment smoother and more consistent, thereby improving the construction quality and efficiency.

[0039] Reference Figure 5 The sliding trolley 2 is provided with a lifting mechanism 8 for driving the scraping roller 3 to move radially along the circular track 1. The purpose of this design is to ensure that the scraping roller 3 can be adjusted radially according to the changes in the tunnel profile, so as to always fit the tunnel surface for scraping construction. During specific work, the lifting mechanism drives the scraping roller 3 to move radially along the circular track 1 through the telescopic action of the oil cylinder, so that the roller can adapt to the tunnel profile of different radii, ensuring that the concrete surface can be evenly scraped during the entire construction process, improving the construction quality and efficiency.

[0040] The lifting mechanism is a cylinder mechanism, which drives the scraping drum 3 to move radially along the annular track 1 through the extension and contraction of the cylinder. The scraping drum 3 is driven to move radially along the annular track 1 through the extension and contraction of the cylinder. The purpose of this design is to ensure that the scraping drum 3 can flexibly adjust its position to adapt to different tunnel contours. During specific operation, the cylinder mechanism transmits power to the scraping drum 3 by controlling the extension and contraction of the cylinder, so that it can move and adjust accurately in the radial direction, so that the scraping drum 3 always closely adheres to the inner wall of the tunnel for scraping operations, ensuring the uniformity and construction quality of the concrete layer, while adapting to different construction needs and tunnel shapes.

[0041] The lifting mechanism includes a bottom bracket 81 mounted on the sliding trolley 2, and a first oil cylinder 82 and a second oil cylinder 83 are radially arranged on the bottom bracket 81 along the annular track 1. The telescopic ends of the first oil cylinder 82 and the second oil cylinder 83 are both connected to a sliding end plate 84 for supporting the scraping drum 3. The telescopic ends of the first oil cylinder 82 and the second oil cylinder 83 are both connected to a sliding end plate 84 for supporting the scraping drum 3. The function of this design is to provide a stable and adjustable support structure, so that the scraping drum 3 can be accurately adjusted radially according to the contour of the tunnel. During operation, the two oil cylinders drive the sliding end plate 84 to move radially through synchronous or independent telescopic movements, thereby adjusting the position of the scraping drum 3 so that it can adapt to different tunnel radii and fit closely to the inner wall of the tunnel, ensuring that the concrete surface is evenly scraped.

[0042] Reference Figure 6The roller driving mechanism 4 includes a motor 41, an output shaft 42 and a connecting shaft 43. The output shaft 42 and the connecting shaft 43 are respectively located at the two ends of the scraping roller 3 and are fixedly connected to the central axis of the scraping roller 3 through splines. The end of the output shaft 42 away from the scraping roller 3 is connected to the motor 41. During operation, the motor 41 transmits power through the output shaft 42 to rotate the output shaft 42. The rotating output shaft 42 drives the central axis of the scraping roller 3 to rotate through the splines. At the same time, the connecting shaft 43 provides additional support and stability at the other end to ensure that the scraping roller 3 maintains balance and precision during rotation, thereby achieving a uniform and efficient concrete surface scraping effect.

[0043] Bell-shaped covers 44 are respectively provided at both ends of the sliding trolley 2, and roller bearings are provided in the bell-shaped covers 44. The output shaft 42 and the connecting shaft 43 are respectively provided in the bell-shaped covers 44 and connected to the corresponding roller bearings. The bell-shaped covers 44 protect the roller bearings inside from dust and impurities. The roller bearings reduce friction to ensure that the output shaft 42 and the connecting shaft 43 can rotate smoothly and efficiently, thereby maintaining the stable operation of the leveling drum 3, ensuring the smooth rotation of the drum and the uniform leveling of the concrete surface during the construction process.

[0044] The annular track 1 includes a first track ring and a second track ring arranged in parallel. One end of the sliding trolley 2 is slidably matched with the first track ring, and the other end of the sliding trolley 2 is slidably matched with the second track ring. During operation, one end of the sliding trolley 2 is slidably matched with the first track ring, and the other end is slidably matched with the second track ring. This double track design enables the sliding trolley 2 to maintain balance and centering during movement, thereby driving the scraping drum 3 to move along a predetermined track in the tunnel.

[0045] The sliding drive member includes a driving motor disposed on the sliding trolley 2, and a running wheel matched with the circular track 1 is disposed at the output end of the driving motor. The driving motor drives the running wheel to rotate through its output end, and the running wheel is closely matched with the circular track 1, and the rotational power of the driving motor is converted into the linear movement of the sliding trolley 2 through friction, thereby driving the sliding trolley 2 to run along the circular track 1, driving the leveling roller 3 to move along the tunnel contour, and realizing uniform leveling of the concrete surface.

[0046] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A concrete scraping device, characterized in that: It comprises a ring track (1), a sliding trolley (2) and a roller assembly; The sliding trolley (2) is in sliding cooperation with the annular track (1), and a sliding driving member is provided on the sliding trolley (2) for driving the sliding trolley (2) to move along the outer side of the annular track (1); The roller assembly comprises a scraping roller (3) rotatably matched with the sliding carriage (2) and a roller driving mechanism (4) for driving the scraping roller (3) to rotate, and the axis of the scraping roller (3) is parallel to the axis of the annular track (1); The scraping roller (3) is located on a side of the sliding trolley (2) away from the annular track (1), and a scraper (7) for scraping concrete is arranged along the length direction on the scraping roller (3).

2. The concrete scraping device according to claim 1, characterized in that: The scraping roller (3) is provided with a mounting slot (5), and the bottom of the scraper (7) is provided with a boss (6) that matches the mounting slot (5).

3. The concrete scraping device according to claim 2, characterized in that: The scraper (7) has a right-angled blade formed on one side and an arc-shaped blade formed on the other side.

4. The concrete scraping device according to claim 1, characterized in that: The sliding trolley (2) is provided with a lifting mechanism (8) for driving the scraping roller (3) to move radially along the annular track (1).

5. The concrete scraping device according to claim 4, characterized in that: The lifting mechanism (8) is a cylinder mechanism, which drives the scraping roller (3) to move radially along the annular track (1) through the extension and contraction of the cylinder.

6. The concrete scraping device according to claim 5, characterized in that: The lifting mechanism (8) comprises a bottom bracket (81) mounted on the sliding trolley (2), a first oil cylinder (82) and a second oil cylinder (83) being arranged on the bottom bracket (81) radially along the annular track (1), and the telescopic ends of the first oil cylinder (82) and the second oil cylinder (83) are both connected to a sliding end plate (84) for supporting the scraping roller (3).

7. The concrete scraping device according to claim 1, characterized in that: The roller driving mechanism (4) comprises a motor (41), an output shaft (42) and a connecting shaft (43); the output shaft (42) and the connecting shaft (43) are respectively located at two ends of the scraping roller (3) and are fixedly connected to the central axis of the scraping roller (3) via splines; the end of the output shaft (42) away from the scraping roller (3) is connected to the motor (41).

8. The concrete scraping device according to claim 7, characterized in that: The two ends of the sliding trolley (2) are respectively provided with bell-shaped covers (44), roller bearings are arranged in the bell-shaped covers (44), and the output shaft (42) and the connecting shaft (43) are respectively arranged in the bell-shaped covers (44) and connected to the corresponding roller bearings.

9. The concrete scraping device according to claim 1, characterized in that: The annular track (1) comprises a first track ring and a second track ring which are arranged in parallel; one end of the sliding trolley (2) is in sliding engagement with the first track ring, and the other end of the sliding trolley (2) is in sliding engagement with the second track ring.

10. The concrete scraping device according to claim 3, characterized in that: A plurality of scrapers (7) are evenly spaced along the circumference of the scraping roller (3), and the arc-shaped blades of all the scrapers (7) are arranged facing the same direction.

Images