Intelligent leveling machine for tunnel sprayed concrete

Abstract

The utility model relates to an intelligent leveling machine for tunnel sprayed concrete, and belongs to the technical field of concrete construction machines. Comprising a walking mechanism, a telescopic arm mechanism and a slicking mechanism. A platform is arranged on the walking mechanism, a turntable is arranged on the platform, and the telescopic arm mechanism is arranged on the turntable; the other end of the telescopic arm mechanism is provided with the slicking mechanism; the slicking mechanism comprises a scraper capable of linearly moving back and forth; the telescopic arm mechanism rotates around a hinge shaft to drive the slicking mechanism to ascend and descend. The turntable drives the telescopic arm mechanism to rotate. The machine is used for scraping the inner wall of the tunnel after concrete spraying, and can realize automatic construction and improve the working efficiency. The slicking mechanism of the machine has a long transverse movement stroke through the movement of the scraper and the movement of the mounting plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel shotcrete intelligent leveling machine and belongs to the technical field of concrete construction machines. BACKGROUND

[0002] After tunnel construction, concrete spraying construction needs to be carried out on the inner wall of the tunnel to make the inner wall of the tunnel have a good concrete surface. The concrete spraying construction is a concrete spraying construction on the inner wall of the tunnel. After the concrete spraying construction is carried out on the inner wall of the tunnel, the surface of the inner wall of the tunnel is not very flat, and some positions have excess concrete. The concrete on the surface of the inner wall of the tunnel needs to be scraped flat to improve the flatness of the surface of the inner wall of the tunnel. If a worker manually holds a scraper to work, the work efficiency is low. If some machines are used to carry out the scraping construction, the existing machines have a small transverse stroke and are not easy to control in transverse movement, and the overall work efficiency is not high. SUMMARY

[0003] The utility model aims at providing a tunnel shotcrete intelligent leveling machine to solve the above technical problems.

[0004] To achieve the above purpose, the utility model adopts the technical scheme that

[0005] A tunnel shotcrete intelligent leveling machine comprises a walking mechanism, a telescopic arm mechanism and a scraping mechanism. A platform is arranged on the walking mechanism, a turntable is arranged on the platform, and the telescopic arm mechanism is arranged on the turntable. One end of the telescopic arm mechanism is hingedly connected to the turntable, and the other end of the telescopic arm mechanism is provided with the scraping mechanism. The scraping mechanism comprises a scraper that can move linearly back and forth. The telescopic arm mechanism drives the scraping mechanism to lift by rotating around the hinge shaft. The turntable drives the telescopic arm mechanism to rotate.

[0006] The utility model technical scheme is further improved in that the scraping mechanism comprises a mounting plate, a guide rail arranged on the mounting plate and a rodless cylinder. The scraper is driven by the rodless cylinder to move linearly back and forth. The scraper is fixed on a scraper holder, and the scraper holder forms a guide rail pair with the guide rail.

[0007] The utility model technical scheme is further improved in that the scraping mechanism further comprises a transverse adjustment assembly. The transverse adjustment assembly comprises a transverse rail beam, a transverse moving frame and a transverse double-acting oil cylinder. The mounting plate is fixed on the transverse moving frame. The transverse moving frame is provided with a hanger wheel and is installed on the transverse rail beam through the hanger wheel. There are two transverse moving frames, and the two ends of the transverse double-acting oil cylinder are fixedly connected to the two transverse moving frames respectively.

[0008] The utility model technical scheme is further improved in that an organ cover is arranged on the guide rail. A linear bearing is arranged on the guide rail, and the scraper holder slides on the guide rail through the linear bearing. A protective plate is arranged at the lower end of the mounting plate.

[0009] The further improvement of the utility model technical scheme is that: the telescopic arm mechanism comprises a plurality of telescopic barrels which are sequentially sleeved and a plurality of telescopic oil cylinders which drive the telescopic barrels; the cylinder barrel of the telescopic oil cylinder is fixed to the outer wall of the telescopic barrel, and the telescopic rod of the telescopic oil cylinder is fixedly connected with the outer wall of the telescopic barrel of the next level.

[0010] The further improvement of the utility model technical scheme is that: a mounting seat is arranged on the rotating disc; the first telescopic barrel of the telescopic arm mechanism is hingedly connected with the mounting seat; a height adjusting oil cylinder is arranged between the first telescopic barrel and the mounting seat and is inclined, and the height adjusting oil cylinder drives the telescopic arm mechanism to rotate and lift.

[0011] The further improvement of the utility model technical scheme is that: the rotating disc is driven to rotate by a hydraulic motor.

[0012] The further improvement of the utility model technical scheme is that: the platform is provided with a supporting leg, and the supporting leg is controlled to be lengthened and contracted relative to the platform by the extension arm.

[0013] The further improvement of the utility model technical scheme is that: the walking mechanism is a tracked walking vehicle; an engine, a hydraulic pump station and an air pump are arranged on the platform.

[0014] The further improvement of the utility model technical scheme is that: the platform is provided with a control box, and the utility model further comprises remote control which cooperates with the working.

[0015] Due to the adoption of the above technical scheme, the utility model has the following technical effects:

[0016] The tunnel shotcrete intelligent screed machine of the utility model installs the scraping mechanism on the telescopic arm mechanism, and then installs the telescopic arm mechanism on the walking mechanism. The walking mechanism drives the working, and the overall working efficiency is high. The telescopic arm mechanism can be adjusted in length and height, and the telescopic arm mechanism can adjust the position of the scraping mechanism in multiple directions. The working range of one movement is large, and the working efficiency is high.

[0017] The scraping mechanism of the utility model moves the scraper in the horizontal direction through the rodless cylinder and the guide rail, and the scraper moves stably and efficiently, and the working efficiency is high. The scraping mechanism is further provided with a horizontal adjustment assembly, and the mounting plate of the scraper is installed on the horizontal adjustment assembly. The horizontal adjustment assembly can be adjusted horizontally by a certain distance, and the mounting plate can be adjusted horizontally by a certain distance, thereby further expanding the horizontal movement stroke of the scraper. Especially when the shotcrete section is too wide, the telescopic adjustment can be adaptively adjusted.

[0018] The horizontal adjustment assembly of the utility model uses a horizontal double-head oil cylinder to drive and adjust the mounting plate in the horizontal direction, which is convenient to control and flexible in action.

[0019] The utility model discloses a piano protective cover is covered on the guide rail, and the guide rail can be covered and protected through the piano protective cover, and the telescopic adjustment covering position is carried out when the doctor knife frame moves.

[0020] The utility model discloses a telescopic arm is formed to the structure of multistage sleeve cooperation oil jar, and the telescopic cylinder is successively installed, and the oil jar is set between the telescopic cylinder of adjacent installation to drive the movement of telescopic cylinder, and the telescopic arm of this structure works stably, and the carrying capacity is strong, and telescopic stroke is long.

[0021] The utility model discloses the cooperation of multiple sensors and control system can realize intelligent, automation construction.

[0022] The utility model discloses can realize the construction of automation, improve work efficiency. ACCURACY OF DRAWINGS

[0023] Figure 1 It is the three-dimensional schematic diagram of the utility model;

[0024] Figure 2 It is the front view of the utility model;

[0025] Figure 3 It is the telescopic arm mechanism and the scraping mechanism schematic diagram of the utility model;

[0026] Figure 4 It is the scraping mechanism three-dimensional schematic diagram of the utility model Figure 1 ;

[0027] Figure 5 It is the scraping mechanism three-dimensional schematic diagram of the utility model Figure 2 ;

[0028] Figure 6 It is the plan view of the scraping mechanism of the utility model;

[0029] Among them, 1, platform, 2, walking mechanism, 3, carousel, 4, doctor knife, 5, mounting plate, 6, guide rail, 7, rodless cylinder, 8, doctor knife frame, 9, transverse guide rail beam, 10, transverse double-end oil jar, 11, transverse moving frame, 12, hanger wheel, 13, piano protective cover, 14, linear bearing, 15, guard board, 16, telescopic cylinder, 17, telescopic oil jar, 18, mounting seat, 19, height-adjusting oil jar, 20, hydraulic motor, 21, support leg, 22, extension arm. DETAILED DESCRIPTION

[0030] In order to make the technical means, creation features, reach the purpose and easy to understand the effect of the utility model, the utility model is further described below in conjunction with specific embodiment.

[0031] In the description of the utility model, it is necessary to explain that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the position or location relationship based on the position or location relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0032] The utility model is a kind of tunnel shotcrete intelligent leveling machine, for the concrete surface layer on the inner wall of tunnel after guniting is carried out scraping treatment.

[0033] The tunnel guniting finishing and scraping machine is mainly used for the finishing and scraping of the sidewall after guniting after tunnel excavation, and the whole machine is powered by diesel engine and motor, can be powered by diesel, can be connected to external power supply, and the two can be used interchangeably.

[0034] Walking is driven by track type hydraulic pressure, and the scraper device is driven by air pressure control rodless cylinder, and the slider on the cylinder is provided with scraper for reciprocating movement, and the scraper scrapes the concrete on the convex surface.

[0035] The device can convert the construction section into angle and position and import into system controller to automatically control extension and rotation for scraping and finishing after spraying along the whole section.

[0036] As shown in Figure 1 , Figure 2 , the machine mainly includes walking mechanism 2, telescopic arm mechanism and scraping mechanism. A platform 1 is arranged on the walking mechanism 2 to form a trolley that can walk and carry the device. The walking mechanism 2 can usually select a track type walking vehicle, which has good traffic capacity and can walk well in the tunnel. The telescopic arm mechanism is installed on the platform 1, and the scraping mechanism is installed at the top end of the telescopic arm mechanism. The telescopic arm mechanism is used for height adjustment of scraping. The scraping mechanism is used for scraping construction.

[0037] Specifically, a turntable 3 is arranged on the platform 1, and the telescopic arm mechanism is installed on the turntable 3. The turntable 3 can drive the telescopic arm mechanism to rotate 360°. The lower end of the telescopic arm mechanism is hinged to the turntable 3, and the other end, i.e. The telescopic arm mechanism can swing up and down around the hinge point of the cylinder turntable 3 under the action of the corresponding driving piece, so as to realize the height adjustment of the scraping mechanism.

[0038] The scraping mechanism mainly includes a reciprocating straight-line scraper 4. The scraper 4 is driven to move linearly to realize the scraping of the concrete guniting surface of the inner wall of the tunnel.

[0039] As Figure 3 , Figure 4 , Figure 5 , Figure 6 shown, the scraping mechanism further comprises a mounting plate 5, a guide rail 6, a scraper holder 8 and a rodless cylinder 7. The rodless cylinder 7 is used to drive the scraper 4 to move. The rodless cylinder 7 and the guide rail 6 are both mounted on the mounting plate 5. The rodless cylinder 7 has an external slider, and the scraper holder 8 is mounted on the external slider of the rodless cylinder 7, and the scraper 4 is mounted on the scraper holder 8. The guide rail 6 is used to guide the movement of the scraper holder 8, and the end of the scraper holder 8 is in sliding fit with the guide rail 6 to form a guide rail pair. Two guide rails 6 are generally provided, both of which are parallel to the rodless cylinder 7, and the two guide rails 6 are respectively located on the upper and lower sides of the rodless cylinder 7. The scraper 4 is driven by the rodless cylinder 7 to move linearly back and forth, and the two guide rails 6 play a role in responsible balance guiding of the scraper holder 8.

[0040] Further, in specific implementation, a linear bearing 14 is generally provided on the guide rail 6, and the two ends of the scraper holder 8 are slid on the guide rail 6 through the linear bearing 14, so that the sliding effect is more smooth and stable.

[0041] The mounting plate 5 of the scraping mechanism in the machine can be directly mounted on the upper end of the telescopic arm mechanism, or mounted on the upper end of the telescopic arm mechanism through a transverse adjustment assembly. The transverse adjustment assembly can enable the mounting plate 5 to have a certain transverse displacement adjustment range together with the scraper 4, the rodless cylinder 7 and the guide rail and other parts.

[0042] As Figure 5 , Figure 6 shown, the scraping mechanism further comprises a transverse adjustment assembly. The transverse adjustment assembly comprises a transverse rail beam 9, a transverse moving frame 11 and a transverse double-headed oil cylinder 10. Two transverse moving frames 11 are provided, and a hanging wheel 12 is provided on the transverse moving frame 11, and the transverse moving frame 11 can be hung on the transverse rail beam 9 through the hanging wheel 12. The mounting plate 5 is fixedly connected with the transverse moving frame 11. The upper transverse moving frame 11 can drive the mounting plate 5 to move transversely on the transverse rail beam 9. The transverse double-headed oil cylinder 10 is installed on the side surface of the transverse rail beam 9, and the two ends of the transverse double-headed oil cylinder 10 are respectively fixedly connected with the two transverse moving frames 11. The transverse double-headed oil cylinder 10 drives the transverse moving frame 11 to make the mounting plate 5 have a certain transverse displacement, thereby improving the stroke of the transverse movement work of the scraping mechanism. Limiting blocks are provided at the positions of the two end portions of the transverse rail beam 9.

[0043] When the machine is working, the scraper 4 scrapes off the excess concrete, so as to keep the guide rail 6 clean and ensure the smooth working of the guide rail 6. An organ cover 13 can be arranged on the guide rail 6, which can cover and protect the guide rail 6, and can be adjusted in length to adapt to the movement of the scraper holder 8. In addition, a guard plate 15 can be arranged at the lower end of the mounting plate 5 to prevent the scraped concrete from falling directly. The guard plate 15 can be arranged to extend outward to a desired length, and the length in the drawings is only a schematic representation and does not represent the actual outward extension.

[0044] The telescopic arm mechanism of the machine is a multi-stage telescopic cylinder mechanism, which can have a long telescopic stroke. Specifically, the telescopic assembly includes a plurality of telescopic cylinders and a plurality of telescopic oil cylinders 5 for driving the telescopic cylinders. The multi-stage telescopic cylinder here plays a telescopic bearing role, and the telescopic oil cylinder plays a telescopic driving role. There are multiple telescopic cylinders 16, that is, multiple telescopic cylinders 16 are sequentially sleeved. A telescopic oil cylinder 17 is arranged between adjacent two telescopic cylinders 16, which drives the telescopic cylinder 16 to move relative to the telescopic cylinder of the previous stage. The telescopic oil cylinder 17 has a cylinder and a telescopic rod. The cylinder of the telescopic oil cylinder 17 is fixed to the outer wall of the telescopic cylinder 16 of a certain stage, and the outermost end of the telescopic rod of the telescopic oil cylinder 17 is fixedly connected to the outer wall of the telescopic cylinder 16 of the next stage. In this way, the telescopic cylinder 16 of the next stage can be pushed out of the telescopic cylinder 16 of the current stage. The telescopic assembly with such a structure has high bearing capacity, each telescopic oil cylinder can be controlled independently, and the overall control is easier.

[0045] The machine is provided with a turntable 3 on the platform 1 for mounting the telescopic arm mechanism. Specifically, a mounting seat 18 can be arranged on the turntable 3, and then the first-stage telescopic cylinder of the telescopic arm mechanism is hingedly connected to the mounting seat 18. At the same time, an adjusting oil cylinder 19 is arranged between the first-stage telescopic cylinder and the mounting seat 18, which drives the telescopic arm mechanism to rotate and lift. The telescopic arm mechanism and the cooperation mode of the telescopic arm mechanism and the adjusting oil cylinder are similar to the lifting arm mechanism of a vehicle-mounted crane. The height adjustment of the telescopic arm mechanism can not use the adjusting oil cylinder, but can use other driving mechanisms.

[0046] The turntable 3 on the platform 1 of the machine can rotate by 360°, which is usually driven to rotate by a hydraulic motor 20.

[0047] The rodless cylinder, the transverse double-head oil cylinder, and the turntable of the machine are purchased and used.

[0048] The four corners of the platform 1 of the machine are provided with supporting legs 21, which are installed at the four corners of the platform 1 by extension arms 22. The supporting legs 21 are controlled by the extension arms 22 to extend and contract relative to the platform 1. The extension arms 22 are transversely arranged and can be driven to extend and contract by oil cylinders or manually.

[0049] The machine is provided with an engine, a hydraulic pump station and an air pump on the platform 1. The engine improves the power of the whole machine. The hydraulic pump station provides power for the hydraulic system, and the air pump provides power for the rodless cylinder.

[0050] The machine is provided with a control box on the platform 1, and the staff can control the whole machine on the platform. The machine is also configured with a remote control, and the machine can also be controlled by the remote control.

[0051] The working process of the machine is as follows:

[0052] Before construction, the construction section data is imported into the control system, and then the center point is measured by the total station. The center point corresponds to the front and rear two points of the vehicle-mounted machine. The machine is parked at the center control point that needs to be trimmed and leveled, and then the machine is re-measured by the total station to check whether the machine parking position is the tunnel center point.

[0053] After the inspection, the four supporting legs are leveled, the extension arm is started to rotate to the given control point of the construction section, and then marked as the starting zero point. During construction, the angle of rotation and the position of extension of the extension arm are calculated by the control system, and the sprayed surface is trimmed and leveled by the reciprocating scraper. The above operations can be controlled by the remote control.

[0054] The device uses diesel engine and motor as power source, can use diesel power, can be connected to external power supply, and the power can be switched according to the actual situation on site. The walking is driven by track hydraulic motor, and the fastest speed can reach 3 kilometers per hour. The device is provided with hydraulic supporting legs, which need to support the machine in working state to ensure the stability of the machine in construction state. The inclination of the machine or the unevenness will seriously affect the construction effect of the machine, so the machine is equipped with an inclination sensor to level the whole machine. In order to more accurately align the center point, the whole machine can be adjusted left and right, so that the machine can be more accurately adjusted to the tunnel center position.

[0055] The track walking vehicle is provided with a rotating device and an extension device, which are rotated and extended by hydraulic motors and oil cylinders. The extension length is fed back to the system by the wire sensor to control the extension length of the oil cylinder, so that the scraper can accurately extend and retract to the appropriate position. The lifting angle is controlled by the angle sensor to drive the lifting oil cylinder to lift, and the data of the angle and the extension distance are imported into the system. The controller automatically controls the extension and rotation to spray and level the surface along the whole arc.

[0056] The scraping mechanism is installed at the top end of the telescopic arm, and a hydraulic oil cylinder is longitudinally arranged at the top end, and the telescopic arm can be longitudinally telescoped when the spraying section width is large. The scraping mechanism adopts a rodless cylinder controlled by air pressure, and magnetic switches are arranged at two ends of the rodless cylinder. When the magnetic switches sense the piston of the cylinder, signals are transmitted to the electromagnetic valve to control the reciprocating movement of the slider. The slider on the cylinder is provided with a scraper, and the reciprocating movement of the scraper is used for scraping and trimming the side wall.

[0057] Before construction, the construction section is converted into an angle and a position and is input into the system controller, then a center point needs to be given, the machine is parked at the center control point which needs to be trimmed and scraped, the four hydraulic supporting legs are automatically leveled, the telescopic arm is started to rotate to the given control point of the construction section, and is marked as a starting zero point. During construction, the control system is used to calculate the rotation angle and the telescoping position of the telescopic arm, and the reciprocating scraper is used for trimming and scraping the sprayed surface. After the pre-input data, the control system can control the scraper to work automatically.

[0058] The utility model is a machine for scraping the concrete sprayed on the inner wall of a tunnel, which can realize automatic construction and improve work efficiency. The scraping mechanism of the machine has a long horizontal movement stroke through the movement of the scraper and the movement of the mounting plate. The utility model can realize intelligent and automatic construction through the cooperation of multiple sensors and a control system.

[0059] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tunnel shotcrete intelligent screed, characterized in that: The device comprises a walking mechanism (2), a telescopic arm mechanism and a scraping mechanism; a platform (1) is arranged on the walking mechanism, a rotating disc (3) is arranged on the platform (1), and the telescopic arm mechanism is arranged on the rotating disc (3); one end of the telescopic arm mechanism is hinged to the rotating disc (3), and the other end is provided with the scraping mechanism; the scraping mechanism comprises a scraper (4) capable of reciprocating linearly; the telescopic arm mechanism drives the scraping mechanism to lift by rotating around the hinge shaft; the rotating disc (3) drives the telescopic arm mechanism to rotate.

2. The intelligent tunnel shotcrete screed of claim 1, wherein: The scraping mechanism comprises a mounting plate (5), a guide rail (6) arranged on the mounting plate (5) and a rodless cylinder (7); the scraper (4) is driven by the rodless cylinder (7) to reciprocate linearly; the scraper (4) is fixed on a scraper holder (8), and the scraper holder (8) forms a guide rail pair with the guide rail (6).

3. The intelligent tunnel shotcrete screed of claim 2, wherein: The scraping mechanism further comprises a transverse adjustment assembly; the transverse adjustment assembly comprises a transverse rail beam (9), a transverse moving frame (11) and a transverse double-head oil cylinder (10); the mounting plate (5) is fixed on the transverse moving frame (11); the transverse moving frame (11) is provided with a hanger wheel (12) and is installed on the transverse rail beam (9) through the hanger wheel (12); the transverse moving frame (11) is provided with two, and the two ends of the transverse double-head oil cylinder (10) are respectively fixedly connected with the two transverse moving frames (11).

4. The intelligent tunnel shotcrete screed of claim 2, wherein: An organ cover (13) is arranged on the guide rail (6); a linear bearing (14) is arranged on the guide rail (6), and the scraper holder (8) slides on the guide rail (6) through the linear bearing (14); a guard plate (15) is arranged at the lower end of the mounting plate (5).

5. The intelligent tunnel shotcrete screed of claim 1, wherein: The telescopic arm mechanism comprises a plurality of telescopic cylinders (16) and a plurality of telescopic oil cylinders (17) for driving the telescopic cylinders (16); the cylinder barrel of the telescopic oil cylinder (17) is fixed to the outer wall of the telescopic cylinder (16), and the telescopic rod of the telescopic oil cylinder (17) is fixedly connected with the outer wall of the next level telescopic cylinder (16).

6. The intelligent tunnel shotcrete screed of claim 5, wherein: A mounting seat (18) is arranged on the rotating disc (3); the first telescopic cylinder of the telescopic arm mechanism is hingedly connected with the mounting seat (18); an adjusting oil cylinder (19) is arranged between the first telescopic cylinder and the mounting seat (18) in an inclined manner, and the adjusting oil cylinder (19) drives the telescopic arm mechanism to rotate and lift.

7. The intelligent tunnel shotcrete screed of claim 1, wherein: The rotating disc (3) is driven to rotate by a hydraulic motor (20).

8. The intelligent tunnel shotcrete screed of claim 1, wherein: The platform (1) is provided with a supporting leg (21), and the supporting leg (21) is controlled to extend and contract relative to the platform (1) by an extension arm (22).

9. The intelligent tunnel shotcrete screed of claim 1, wherein: The walking mechanism (2) is a caterpillar walking vehicle; an engine, a hydraulic pump station and an air pump are arranged on the platform (1).

10. The intelligent tunnel shotcrete screed of claim 1, wherein: A control box is arranged on the platform (1), and a remote control is further arranged for cooperation.

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