Automatic spraying equipment for vertical shaft

Abstract

The utility model provides automatic spraying equipment for a vertical shaft, and relates to the technical field of vertical shaft spraying construction. The material pipe is a tubular part penetrating up and down and is connected with the steel cable, and the exterior of the material pipe communicates with a spraying and building material supply part; the rotary spraying mechanism is arranged at the lower end of the material pipe and comprises a rotary spraying pipe, a rotary motor and a balancing weight, the output end of the rotary motor is connected with the rotary spraying pipe through a transmission component, and the rotary spraying pipe and the material pipe are communicated and used for spraying out concrete. The utility model has the beneficial effects that through the accurate cooperation of the winch and the steel cable, the automatic lowering and lifting of the material pipe are realized, the manual operation is reduced, the labor intensity is reduced, and the rotary spraying mechanism comprises the balance rotation of the rotary spraying pipe and the flexible attachment of the extension pipe, so that the concrete can be uniformly sprayed on the inner wall of the vertical shaft. The hydraulic supporting piece provides stable radial supporting for the material pipe, and shaking and displacement of the material pipe in the concrete spraying process are prevented.

Description

Technical Field

[0001] This utility model relates to the field of vertical shaft spraying technology, and in particular to automatic vertical shaft spraying equipment. Background Technology

[0002] After the shaft is excavated, it is necessary to line and reinforce the shaft. The conventional construction method in the current technology is to lower the formwork and steel cylinder for pouring reinforced concrete into the shaft, pour concrete in the annulus and tie the steel mesh, and finally manually spray concrete or high-strength mortar by going down into the shaft.

[0003] Conventional methods involve complex procedures, require manual entry into the well, pose high risks, and have long construction times. Currently, there is a method of using winches in conjunction with jet grouting equipment to spray vertical shafts. However, due to the vertical hoisting of the jet grouting equipment, the uniformity and continuity of the thin concrete flow during spraying are not good. Therefore, providing automated spraying equipment is of great significance for improving uniform spraying. Utility Model Content

[0004] In view of this, embodiments of the present invention provide an automatic spraying device for vertical shafts to solve the technical problem that the spraying uniformity of existing vertical shaft spraying equipment using suspended rotary spraying equipment is not good.

[0005] Embodiments of this utility model provide an automatic spraying device for vertical shafts, comprising:

[0006] hoist;

[0007] The material pipe is a tubular component that runs vertically through the shaft and is connected to the hoisting end of the winch.

[0008] The rotary spraying mechanism is located at the lower end of the material pipe and includes a rotary spraying pipe and a rotary motor. The output end of the rotary motor is connected to the rotary spraying pipe through a transmission component. The rotary spraying pipe and the material pipe are connected for spraying concrete. By driving the rotary motor, the rotary motor can pull the rotary spraying pipe to rotate relative to the material pipe, thereby cooperating with the material supply to achieve rotary spraying of concrete.

[0009] The mixing component includes a base and a spiral blade. The spiral blade is connected to the base and fits tightly against the inner wall of the material pipe. The base is detachably connected to the rotary jet pipe, so that when the rotary jet pipe rotates, it can drive the spiral blade to rotate synchronously, thereby mixing the concrete material in the material pipe and reducing the particle size of the concrete aggregate.

[0010] Furthermore, the material pipe is provided with at least three hydraulic support components on its exterior. These hydraulic support components extend along the radial direction of the material pipe and abut against the shaft wall, thereby fixing the position of the material pipe when it is lowered.

[0011] Furthermore, one end of the rotary nozzle is provided with a connector, which extends into the inner cavity of the material pipe and is rotatably connected to the inner wall of the material pipe. A first bevel gear is provided on the surface of the connector, and a second bevel gear is provided on the output end of the rotary motor. The first bevel gear meshes with the second bevel gear.

[0012] Furthermore, a groove corresponding to the connector is provided on the inner wall of the material pipe. One end of the connector is rotatably abutted against the bottom of the groove and communicates with the jet spray pipe. The other end is provided with a sealing ring and is rotatably sealed to the groove wall of the material pipe so that concrete will not leak from the lower end of the material pipe.

[0013] Furthermore, an extension tube is slidably connected to the end of the rotary nozzle, and an electric telescopic arm is provided between the extension tube and the lower end of the material tube.

[0014] Furthermore, a rotating seat is provided on the lower surface of the material tube, and one end of the electric telescopic arm is rotatably connected to the rotating seat.

[0015] Furthermore, a steel cable is wound on the drum of the winch, and a connecting member is provided at the upper end of the material tube to connect with the steel cable. The connecting member includes a connecting plate, at least two support columns and a connecting ring. The support columns are located between the connecting plate and the connecting ring. The connecting plate is connected to the steel cable, and the connecting ring is connected to the material tube. The opening size in the middle of the connecting ring is larger than the opening size at the upper end of the material tube. The connecting member is positioned to allow the sprayed material supply section to communicate with the material tube.

[0016] Furthermore, the material pipe is connected to the spraying supply unit, which includes a concrete pipe, a mortar spraying machine, an air pipe, and an air compressor. A mixing connector is provided at the upper open end of the material pipe, which is connected to both the concrete pipe and the air pipe. The concrete pipe is connected to the output end of the mortar spraying machine, and the air pipe is connected to the output end of the air compressor.

[0017] Furthermore, a counterweight is provided on the outside of the swirl nozzle, and the counterweight is disposed on the swirl nozzle and located at the end opposite to the direction of the end of the swirl nozzle.

[0018] Furthermore, cameras are provided at the upper end of the material pipe and the end of the extension pipe, and at least two lights are provided at the lower end of the material pipe to provide a light source, enabling the cameras to capture the descent position and the spraying coverage status.

[0019] The beneficial effects of the technical solution provided by the embodiments of this utility model are as follows: The automatic shaft spraying equipment of this utility model realizes the automatic lowering and lifting of the material pipe through the precise cooperation of the winch and steel cable, reducing manual operation and labor intensity. The rotary spraying mechanism includes the balanced rotation of the rotary spraying pipe and the flexible fitting of the extension pipe, so that the concrete can be sprayed evenly on the inner wall of the shaft. The hydraulic support provides stable radial support for the material pipe, preventing the material pipe from shaking and displacing during the concrete spraying process, reducing safety accidents caused by equipment instability. The installation of cameras and lighting lights enables full-process visual monitoring of the construction process. Operators can observe the construction situation in real time, discover and solve problems in a timely manner, and improve the accuracy and safety of construction. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the automatic spraying equipment for vertical shafts of this utility model;

[0021] Figure 2 This is a three-dimensional structural view of the automatic spraying equipment for vertical shafts of this utility model;

[0022] Figure 3 This is a three-dimensional view of the material pipe structure of the automatic spraying equipment for vertical shafts of this utility model;

[0023] Figure 4 This is a longitudinal cross-sectional view of the material pipe of the automatic spraying equipment for vertical shafts of this utility model;

[0024] Figure 5 This is a three-dimensional view of the spiral blade structure of the automatic spraying equipment for vertical shafts of this utility model.

[0025] In the diagram: 1. Winch; 2. Steel cable; 3. Outrigger; 4. Material pipe; 5. Connecting component; 501. Connecting plate; 502. Support column; 503. Connecting ring; 6. Mixing connector; 7. Concrete pipe; 8. Mortar spraying machine; 9. Air pipe; 10. Air compressor; 11. Spray nozzle; 12. Extension pipe; 13. Hydraulic support component; 14. Counterweight; 15. Electric telescopic boom; 16. Rotary motor; 17. Connector; 18. First bevel gear; 19. Second bevel gear; 20. Sealing ring; 21. Rotating seat; 22. Hook; 23. Base; 24. Spiral blade; 25. Groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings. The following description presents a preferred embodiment of several possible embodiments of this utility model, intended to provide a basic understanding of the utility model, but not intended to identify the key or decisive elements of the utility model or to limit the scope of protection sought.

[0027] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0028] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Also, it should be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale.

[0030] In the description of this utility model, it should be noted that the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0031] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Example 1

[0033] Please refer to Figures 1 to 4 The present invention provides an automatic spraying device for vertical shafts, including a winch 1, a material pipe 4, and a rotary spraying mechanism; a steel cable 2 is tightly wound on the drum of the winch 1, and the other end of the steel cable 2 is firmly connected to the upper end of the material pipe 4.

[0034] This connection method ensures that the winch 1 can precisely control the lifting and lowering of the material pipe 4 through the steel cable 2, so as to achieve the smooth movement of the material pipe 4 in the vertical shaft.

[0035] During implementation, the winch 1 is placed on a flat ground above the shaft, ensuring that it is vertically aligned with the central axis of the shaft. At least four support legs 3 are installed below the winch 1. By fixing the position of the support legs 3, the winch 1 is positioned vertically and corresponds to the shaft.

[0036] Furthermore, the material pipe 4 is a tubular structure that runs vertically through the pipe, with its upper end connected to the spraying supply unit via a mixing connector 6.

[0037] The spraying supply unit includes a concrete pipe 7, a mortar spraying machine 8, an air pipe 9, and an air compressor 10. The concrete pipe 7 transports the concrete output from the mortar spraying machine 8 to the mixing connector 6, while the air pipe 9 transports the compressed air provided by the air compressor 10 to the same connector. In the mixing connector 6, the concrete and compressed air are fully mixed to form a mixture with suitable fluidity and spraying force, and then the mixture is transported downward through the material pipe 4 to the rotary spraying mechanism.

[0038] This mixing method ensures that the concrete has good adhesion and coverage when sprayed, while the presence of compressed air increases the spray range and impact force, allowing the concrete to adhere evenly to the inner wall of the shaft.

[0039] In order to make way for the concrete pipe 7 and air pipe 9 of the sprayed material supply unit and to connect the steel cable 2, a connecting component 5 is installed at the upper end of the material pipe 4, including a connecting plate 501, a support column 502 and a connecting ring 503.

[0040] The connecting plate 501 is connected to the steel cable 2, and the connecting ring 503 is connected to the material pipe 4 to ensure a firm connection. A mixing connector 6 is installed at the upper end of the material pipe 4, and the concrete pipe 7 and the air pipe 9 are connected to the mixing connector 6 respectively. The concrete pipe 7 is connected to the mortar spraying machine 8, and the air pipe 9 is connected to the air compressor 10.

[0041] In this embodiment, in order to ensure that the material pipe 4 lowered into the shaft can be centered and stable, at least three hydraulic support members 13 are evenly installed around the outside of the material pipe 4 in the circumferential direction to ensure that the hydraulic support members 13 can extend and retract radially along the material pipe 4 so that the material pipe 4 is centered and fixed in the vertical direction of the shaft.

[0042] After the material pipe 4 is lowered to the construction position, the hydraulic support component 13 extends outward under the drive of the hydraulic system, and its end fits tightly against the shaft wall. This support structure provides stable radial support force for the material pipe 4, preventing the material pipe 4 from shaking due to reaction force during concrete spraying, and ensuring the spraying accuracy of the jet nozzle 11. At the same time, the adjustability of the hydraulic support component 13 allows it to adapt to shafts of different diameters, enhancing the versatility and adaptability of the equipment.

[0043] It should be noted that the rotary spraying mechanism includes a rotary spraying pipe 11, a rotary motor 16, and a counterweight 14. One end of the rotary spraying pipe 11 is connected to the inner cavity of the material pipe 4 through a connector 17. The outside of the connector 17 is provided with a first bevel gear 18, which meshes with the second bevel gear 19 at the output end of the rotary motor 16.

[0044] When the rotary motor 16 starts, the spray nozzle 11 begins to rotate relative to the material pipe 4 through the transmission of the first bevel gear 18 and the second bevel gear 19. The inner wall of the material pipe 4 is provided with a groove corresponding to the connector 17. One end of the connector 17 is rotatably abutted against the bottom of the groove, ensuring the stability of the spray nozzle 11 during rotation. At the same time, the other end of the connector 17 is provided with a sealing ring 20, which forms a rotatable sealing connection with the groove wall of the material pipe 4, effectively preventing concrete from leaking from the lower end of the material pipe 4 and maintaining the cleanliness and pressure stability inside the equipment.

[0045] In this embodiment, at least three hooks 22 are fixed at the upper end of the connector 17. The mixing component is engaged with the connector 17 through the hooks 22, so that the rotary spray pipe 11 drives the connector 17 and the mixing component above it to mix the concrete in the material pipe 4 while rotating, so as to reduce the particle size of the concrete clumps and improve the fineness of the sprayed concrete.

[0046] More specifically, the mixing component includes a base 23 and a spiral blade 24. The spiral blade 24 is fixed on the base 23 and fits tightly against the inner wall of the material pipe 4 to form a spiral structure for conveying concrete. A groove 25 is provided on the surface of the base 23. The end of the hook 22 can expand and deform under compression, and at the same time, the end of the hook extends into the groove 25 to lock the base 23. Since there are multiple hooks 22, the rotation of the base 23 relative to the connector 17 can be restricted.

[0047] It should be noted that during the mixing process of the spiral blade 24, not only is the concrete contained in the material pipe 4 further mixed by the spiral blade 24, but the spiral blade 24 can also cooperate with the downward flowing concrete to form a closed cavity structure. When the air supply structure stops, the pressure value in the material pipe 4 will remain unchanged for a short time due to the closed cavity structure, so as to improve the continuity of spraying.

[0048] Understandably, the counterweight 14 is installed at the opposite end of the nozzle 11. Its main function is to balance the centrifugal force generated by the nozzle 11 when it rotates, so that the nozzle 11 can rotate smoothly.

[0049] This balanced design not only improves the rotational stability of the jet nozzle 11, but also reduces the load on the rotary motor 16 and extends the service life of the motor. Driven by the rotary motor 16, the jet nozzle 11 can rotate around the inner wall of the shaft at a constant speed, ensuring uniform spraying and coverage of concrete, avoiding local accumulation or omissions, and improving construction quality.

[0050] In this embodiment, an extension tube 12 is installed at the end of the rotary nozzle 11 by a sliding connection. An electric telescopic arm 15 is provided between the extension tube 12 and the lower end of the material tube 4. One end of the electric telescopic arm 15 is rotatably connected to the rotating seat 21 on the lower surface of the material tube 4, and the other end is connected to the extension tube 12.

[0051] This connection method allows the extension pipe 12 to flexibly adjust its extension length under the drive of the electric telescopic arm 15, thereby closely fitting the inner wall of the shaft. The extension pipe 12 not only increases the coverage of the spraying, but also can be adaptively adjusted according to the geometry of the shaft, ensuring that the concrete can evenly cover the entire inner wall surface, thus improving the flexibility and adaptability of construction.

[0052] In addition, cameras are installed at the upper end of the material pipe 4 and the end of the extension pipe 12 to monitor the spraying situation in real time, and at least two lights are installed at the lower end of the material pipe 4 to ensure that there is sufficient light source in the construction area.

[0053] Example 2

[0054] Based on Example 1, some structures were optimized by adding multiple sets of guide plates (not shown) to the inner wall of the material pipe 4. The guide plates are arranged in a spiral shape, which can further guide the flow of concrete in the material pipe 4, making the concrete more uniformly mixed and transported, reducing the deposition and blockage of concrete in the material pipe 4, and improving the spraying efficiency and quality of concrete.

[0055] Meanwhile, the nozzle structure of the jet spraying mechanism 11 has been improved by adopting a multi-aperture adjustable nozzle. According to different construction requirements and the condition of the shaft wall, the operator can adjust the nozzle aperture size through a remote control device to achieve precise control of the concrete spraying speed and coverage area, which further improves the adaptability and flexibility of the equipment and better meets the needs of automatic spraying construction in shafts.

[0056] During implementation,

[0057] Start the winch 1, and the steel cable 2 is slowly released, which drives the material pipe 4 to descend smoothly along the central axis of the shaft. During the descent of the material pipe 4, the hydraulic support component 13 remains in a contracted state to reduce the descent resistance. After the material pipe 4 is lowered to the predetermined construction position, the hydraulic support component 13 gradually extends under the control of the hydraulic system, and its end tightly abuts against the shaft wall to provide stable radial support for the material pipe 4.

[0058] The mortar spraying machine 8 delivers the pre-mixed concrete through the concrete pipe 7 to the mixing connector 6. At the same time, the compressed air generated by the air compressor 10 is also delivered to the same connector through the air pipe 9. In the mixing connector 6, the concrete and compressed air are fully mixed to form a mixture with high fluidity and spraying force. The mixed material is conveyed downward through the material pipe 4 under pressure and finally sprayed out at high speed from the nozzle of the rotary spray pipe 11.

[0059] After the rotary motor 16 is started, it drives the jet nozzle 11 to rotate relative to the material pipe 4 through the transmission of the first bevel gear 18 and the second bevel gear 19. The rotation speed of the jet nozzle 11 can be precisely adjusted according to the construction requirements to ensure that the concrete can be sprayed evenly on the inner wall of the shaft. The counterweight 14 generates a balancing torque when the jet nozzle 11 rotates, which counteracts the reaction torque generated at the end of the jet nozzle 11 due to the concrete spraying, so that the jet nozzle 11 can rotate smoothly.

[0060] While the jet spraying mechanism rotates and sprays concrete, the electric telescopic boom 15 flexibly adjusts the extension length of the extension pipe 12 according to the geometry of the inner wall of the shaft and the construction requirements. The end of the extension pipe 12 is close to the inner wall of the shaft to ensure that the concrete can evenly cover the entire inner wall surface.

[0061] Cameras installed at the upper end of the material pipe 4 and the end of the extension pipe 12 capture real-time footage of the spraying process throughout the construction. Meanwhile, the lighting at the lower end of the material pipe 4 provides ample light for the construction area. Operators can clearly observe the spraying coverage of concrete, the condition of the shaft wall, and the operating status of the equipment through the monitoring screen. Based on the real-time monitoring information, operators can adjust parameters such as the rotation speed of the jet grouting pipe 11, the spraying pressure, and the extension length of the extension pipe 12 in a timely manner to ensure the smooth progress of the construction process and the achievement of construction quality standards.

[0062] In this document, the directional terms such as front, back, top, and bottom are defined based on the position of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that these are relative concepts and can vary depending on different methods of use and placement; the use of these directional terms should not limit the scope of protection claimed in this application.

[0063] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0064] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Shaft automatic spraying equipment, characterized in that, Include: winch (1); material pipe (4), which is a through pipe, connected with the lifting end of the winch (1); rotary spraying mechanism, which is provided at the lower end of the material pipe (4) and includes a rotary spraying pipe (11) and a rotary motor (16), the output end of the rotary motor (16) is connected to the rotary spraying pipe (11) through a transmission member, the rotary spraying pipe (11) and the material pipe (4) are connected for spraying concrete, and by driving the rotary motor (16), the rotary motor (16) can drive the rotary spraying pipe (11) to rotate relative to the material pipe (4), so as to realize rotary spraying of concrete in cooperation with feeding; and a stirring member including a base (23) and a spiral blade (24), the spiral blade (24) is connected to the base (23), the spiral blade (24) is tightly attached to the inner wall of the material pipe (4), and the base (23) is detachably connected to the rotary spraying pipe (11), so that the rotary spraying pipe (11) can drive the spiral blade (24) to rotate synchronously while rotating, so that the concrete in the material pipe (4) is stirred, and the particle size of the concrete clumps is reduced.

2. The shaft spray application apparatus of claim 1, wherein: The outer part of the material pipe (4) is also provided with at least three hydraulic supports (13), which extend along the radial direction of the material pipe (4) and abut against the shaft wall, so that the position of the material pipe (4) is fixed.

3. The shaft spray application apparatus of claim 1, wherein: One end of the rotary spraying pipe (11) is provided with a connector (17) which extends into the inner cavity of the material pipe (4) and is rotatably connected with the inner cavity wall of the material pipe (4), a first bevel gear (18) is arranged on the surface of the connector (17), a second bevel gear (19) is arranged on the output end of the rotary motor (16), and the first bevel gear (18) is engaged with the second bevel gear (19).

4. The shaft spray application apparatus of claim 3, wherein: A groove corresponding to the connector (17) is formed in the inner wall of the material pipe (4), one end of the connector (17) is rotatably abutted at the bottom of the groove and is in communication with the rotary spraying pipe (11), the other end is rotatably and sealingly connected with the groove wall of the material pipe (4) through a sealing ring (20), so that the concrete cannot leak from the lower end of the material pipe (4).

5. The vertical shaft automatic spraying apparatus as claimed in claim 1, characterized in that: The end of the rotary spraying pipe (11) is slidably connected with an extension pipe (12), and the extension pipe (12) and the lower end of the material pipe (4) are provided with an electric telescopic arm (15).

6. The shaft spray application apparatus of claim 5, wherein: A rotating seat (21) is arranged on the lower surface of the material pipe (4), and one end of the electric telescopic arm (15) is rotatably connected with the rotating seat (21).

7. The vertical shaft automatic spraying apparatus as claimed in claim 1, characterized by: The winding drum of the winch (1) is wound with a steel cable (2), the upper end of the material pipe (4) is provided with a connecting member (5) connected with the steel cable (2), the connecting member (5) comprises a connecting plate (501), at least two supporting columns (502) and a connecting ring (503), the supporting columns (502) are arranged between the connecting plate (501) and the connecting ring (503), the connecting plate (501) is connected with the steel cable (2), the connecting ring (503) is connected with the material pipe (4), the middle part of the connecting ring (503) is provided with a hole with a size larger than the opening size of the upper end of the material pipe (4), and the connecting member (5) is located in the spray construction feeding part, so that the material pipe (4) can communicate with the spray construction feeding part.

8. The vertical shaft automatic spraying apparatus as claimed in claim 1, characterized by: The material pipe (4) communicates with the spray construction feeding part, the spray construction feeding part comprises a concrete pipe (7), a mortar spraying machine (8), an air pipe (9) and an air compressor (10), the upper end of the material pipe (4) is provided with a mixing connector (6), the mixing connector (6) is connected with the concrete pipe (7) and the air pipe (9) at the same time, the concrete pipe (7) is connected with the output end of the mortar spraying machine (8), and the air pipe (9) is connected with the output end of the air compressor (10).

9. The vertical shaft automatic spraying apparatus as claimed in claim 1, characterized in that: The rotary spraying pipe (11) is provided with a counterweight (14) outside, the counterweight (14) is arranged on the rotary spraying pipe (11) and located at the end opposite to the pipe end direction of the rotary spraying pipe (11).

10. The vertical shaft automatic spraying apparatus as claimed in claim 5, characterized in that: The upper end of the material pipe (4) and the end of the extension pipe (12) are provided with a camera, and the lower end of the material pipe (4) is provided with at least two illuminating lamps to provide a light source, so that the camera can shoot the descending position and the spray construction coverage condition.

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