A new type of shaft guniting device
By designing a new type of vertical shaft shotcrete device, the shotcrete head can be adjusted in all directions and the shaft wall can be cleaned, which solves the problems of uneven shotcrete and safety risks, and improves the degree of automation and support effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN TUTENG INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-21
Smart Images
Figure CN224532723U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shotcrete machine technology, and in particular to a novel vertical shaft shotcrete device. Background Technology
[0002] Vertical shafts are widely used in water conservancy and hydropower projects for water intake, water diversion, ventilation, slag removal, and gas replenishment. Vertical shaft construction has the advantages of small footprint and less interference with surrounding construction. However, the small construction space, long construction period, high-altitude and edge-prone work, and inconvenient access lead to prominent safety risks in vertical shaft construction. Vertical shaft shotcreting is an important construction method in tunnels and underground engineering. It is mainly used for the initial support of vertical shafts, to reinforce the shaft walls, prevent collapse and leakage, and enhance the stability and safety of the vertical shaft structure.
[0003] The vertical shaft shotcrete adopts a wet spraying process. The shotcrete is mixed centrally outside the tunnel and pumped into the tunnel by a concrete pump. The wet spraying machine is used for spraying. After the vertical shaft is excavated, a 4cm thick sealing rock surface is sprayed first. A steel frame is erected and a steel mesh is hung. After the initial sprayed rock surface is cleaned, it is sprayed again to the designed thickness.
[0004] Currently, vertical shaft shotcreting construction is mainly carried out manually. The high humidity and poor ventilation inside the shaft can lead to poisoning or suffocation among workers. Furthermore, if the shaft wall is not supported in a timely and effective manner, or if the support structure is unstable, it can cause the shaft wall to collapse and injure workers. During the shotcreting process, tools, materials, or shotcrete falling from a height can cause impact injuries to personnel below. Improper operation or equipment problems during the shotcreting process can lead to uneven shotcreting, affecting the support effect. Insufficient shotcrete layer thickness and strength can affect the safety of the vertical shaft. Therefore, a new type of vertical shaft shotcreting device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a novel vertical shaft shotcrete device, which aims to improve the problems of low automation, the need for manual operation underground, the impact on the health of workers, and the instability of the shotcrete equipment affecting the support effect in the existing technology.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A novel vertical shaft shotcrete device includes a fixed frame, a connecting frame, and a grout delivery pipe. A winding machine is installed on one side of the fixed frame. A fixing component is provided on the top of the connecting frame, and an adjusting component is provided at the bottom of the connecting frame. A rotating frame is fixedly connected to the bottom of the adjusting component. One end of the grout delivery pipe is located at the bottom of the connecting frame, and a shotcrete head is fixedly connected to one end of the grout delivery pipe. A lifting component is provided between the fixed frame and the connecting frame. The adjustment assembly includes a rotary motor, which is fixedly connected to the top of the connecting frame. A small gear is fixedly connected to the output end of the rotary motor. A rotary bearing is fixedly connected to the bottom of the connecting frame. A large gear is rotatably connected to the bottom of the rotary bearing. The large gear meshes with the small gear. The rotary frame is fixedly connected to the bottom of the large gear. As a further description of the above technical solution: The fixing component includes multiple support cylinders, all of which are fixedly connected to the top of the connecting frame and arranged around the connecting frame. As a further description of the above technical solution: The lifting assembly includes a fixed pulley, which is fixedly connected to the bottom of the fixed frame. A fixed block is fixedly connected to the bottom of the fixed frame, and a rope is fixedly connected to the bottom of the fixed block. The other end of the rope is located outside the winding machine, and a movable pulley is installed on the top of the connecting frame. As a further description of the above technical solution: The bottom of the rotating frame is rotatably connected to a mounting frame, and the shotcrete head is fixedly connected to the bottom of the mounting frame; As a further description of the above technical solution: A support block is fixedly connected to the top of the connecting frame, and the movable pulley is rotatably connected to the inner side of the support block; As a further description of the above technical solution: Multiple cameras are fixedly connected to the outside of the rotating frame, and multiple water spray nozzles are fixedly connected to the bottom of the connecting frame; As a further description of the above technical solution: A square block is fixedly connected to the top of the connecting frame, and the position of the square block corresponds to the position of the supporting oil cylinder, with the supporting oil cylinder located on top of the square block; As a further description of the above technical solution: The connecting frame has a through hole in the middle, and the slurry delivery pipe is located in the middle of the through hole.
[0007] This utility model has the following beneficial effects: 1. In this utility model, the rotary motor of the adjustment component drives the small gear to drive the large gear to rotate, thereby controlling the rotary frame to achieve omnidirectional back-and-forth rotation in the horizontal direction. With the rotation connection of the mounting frame, the spraying head can flexibly adjust the spraying angle to adapt to the complex shape of the well wall, improve the uniformity and coverage of the spraying, increase the degree of automation, reduce the labor intensity of personnel, and ensure personnel safety.
[0008] 2. In this utility model, the water spray nozzles installed at the bottom of the connecting frame can automatically wash the well wall before spraying, remove dust and loose particles, and enhance the adhesion between the sprayed concrete and the rock surface; multiple cameras can monitor the well wall condition and the spraying process in real time, which is convenient for remote operation and quality control. At the same time, the supporting oil cylinder and the square block structure enhance the connection stability between the connecting frame and the fixed frame, preventing shaking during operation. Attached Figure Description
[0009] Figure 1 This is a three-dimensional schematic diagram of a novel vertical shaft shotcrete device proposed in this utility model; Figure 2 This is a schematic diagram of the rope structure of a novel vertical shaft shotcrete device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the rotary motor of a novel vertical shaft shotcrete device proposed in this utility model; Figure 4 This is a schematic diagram of the rotating frame of a novel vertical shaft shotcrete device proposed in this utility model; Figure 5 This is a schematic diagram of the slewing bearing of a novel vertical shaft shotcrete device proposed in this utility model.
[0010] Legend: 1. Fixed frame; 2. Connecting frame; 3. Fixed block; 4. Fixed pulley; 5. Rope; 6. Winding machine; 7. Moving pulley; 8. Grout delivery pipe; 9. Support block; 10. Support cylinder; 11. Camera; 12. Rotary motor; 13. Shotcrete head; 14. Sprinkler head; 15. Mounting frame; 16. Rotary frame; 17. Pinion; 18. Rotary bearing; 19. Large gear; 20. Square block; 21. Through hole. Detailed Implementation
[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0012] Reference Figure 1 , Figure 4 and Figure 5The present invention provides an embodiment of a novel vertical shaft shotcrete device, comprising a fixed frame 1, a connecting frame 2, and a grout delivery pipe 8. The fixed frame 1 serves as the supporting foundation for the entire shotcrete device and is installed on a stable structure at the wellhead. A winding machine 6 is installed on one side of the fixed frame 1, which drives a lifting assembly to achieve vertical movement of the connecting frame 2. A fixed assembly is provided at the top of the connecting frame 2, and an adjusting assembly is provided at the bottom of the connecting frame 2. A rotating frame 16 is fixedly connected to the bottom of the adjusting assembly, and the rotating frame 16 can rotate to adjust the direction. One end of the grout delivery pipe 8 is located at the bottom of the connecting frame 2, and a shotcrete head 13 is fixedly connected to one end of the grout delivery pipe 8. The grout delivery pipe 8 passes through the middle of the connecting frame 2, with one end connected to the grout supply system and the other end connected to the shotcrete head 13 to ensure stable grout delivery. A lifting assembly is provided between the fixed frame 1 and the connecting frame 2. The adjustment assembly includes a rotary motor 12, which is fixedly connected to the top of the connecting frame 2. A small gear 17 is fixedly connected to the output end of the rotary motor 12, and the small gear 17 is driven to rotate by the rotary motor 12. A slewing bearing 18 is fixedly connected to the bottom of the connecting frame 2, and a large gear 19 is rotatably connected to the bottom of the slewing bearing 18. The large gear 19 meshes with the small gear 17, and the large gear 19, through meshing with the small gear 17, enables the rotary motor 12 to drive it to rotate, thereby realizing the rotational adjustment of the slewing frame 16. The slewing frame 16 is fixedly connected to the bottom of the large gear 19, and the rotation... The bottom of the frame 16 is connected to the mounting frame 15 by a rotating connection. The grouting head 13 is fixed to the bottom of the mounting frame 15, so that the grouting head 13 can flexibly adjust the spraying direction within a certain angle range to adapt to the uneven or curved structure of the well wall and ensure uniform adhesion of the grout. The bottom of the rotating frame 16 is rotatably connected to the mounting frame 15, and the grouting head 13 is fixedly connected to the bottom of the mounting frame 15. A through hole 21 is opened in the middle of the connecting frame 2, and the grouting pipe 8 is located in the middle of the through hole 21. The grouting pipe 8 passes through the through hole 21 in the middle of the connecting frame 2. The layout is compact and avoids entanglement or wear during movement.
[0013] Reference Figures 1-3The lifting assembly includes a fixed pulley 4, which is fixedly connected to the bottom of the fixed frame 1. A fixed block 3 is fixedly connected to the bottom of the fixed frame 1, and a rope 5 is fixedly connected to the bottom of the fixed block 3. The other end of the rope 5 is located outside the winding machine 6. A movable pulley 7 is installed on the top of the connecting frame 2, and a support block 9 is fixedly connected to the top of the connecting frame 2. The movable pulley 7 is rotatably connected to the inside of the support block 9. The lifting assembly consists of a pulley system composed of the fixed pulley 4, the movable pulley 7, the rope 5, and the winding machine 6. One end of the rope 5 is fixed to the fixed block 3, passes around the fixed pulley 4 and the movable pulley 7, and is wound around the winding machine 6. The winding machine 6 winds up and unwinds the rope 5 to drive the connecting frame 2 to rise and fall smoothly in the vertical direction. The movable pulley 7 is installed inside the support block 9 to ensure smooth and reliable operation. Multiple cameras 11 are fixedly connected to the outside of the rotating frame 16. The multiple cameras 11 can collect real-time image information of the well wall, which makes it convenient for operators to remotely monitor the shotcreting process and the condition of the well wall, and realize visualized construction. Multiple water spray nozzles 14 are fixedly connected to the bottom of the connecting frame 2. The multiple water spray nozzles 14 can automatically wash the well wall before shotcreting, effectively remove dust and loose particles, and enhance the bonding strength between the shotcrete and the rock surface.
[0014] Reference Figure 3 and Figure 4 The fixing assembly includes multiple support cylinders 10, all of which are fixedly connected to the top of the connecting frame 2. The support cylinders 10 are used to fix the connecting frame 2, and the multiple support cylinders 10 are arranged around the connecting frame 2. A square block 20 is fixedly connected to the top of the connecting frame 2, and the position of the square block 20 corresponds to that of the support cylinder 10. The support cylinder 10 is located on top of the square block 20. The fixing assembly consists of multiple support cylinders 10 arranged around the connecting frame 2, which work together with the square block 20 on the top of the connecting frame 2 to fix the connecting frame 2. When the connecting frame 2 is raised or lowered to the designated position, the support cylinders 10 extend and press against the inner wall of the shaft, firmly fixing the connecting frame 2 to the inner wall of the shaft, which significantly improves the overall structural stability during shotcreting operations and prevents displacement due to vibration or external forces.
[0015] Working principle: First, place the shotcrete device above the shaft where shotcrete is to be applied. Then, start the winding machine 6. The winding machine 6 releases the rope 5. The rope 5 drives the connecting frame 2, which is connected to the lower part of the moving pulley 7 via the movable pulley 7 and the fixed pulley 4, to move through the support block 9. Once the connecting frame 2 is in the required position, start the support cylinder 10 to extend the output end of the support cylinder 10. The connecting frame 2 can then be fixed inside the shaft by the support cylinder 10 to prevent it from shaking.
[0016] Secondly, by fixing the position of the connecting frame 2, grout can be sprayed onto the inner wall of the shaft through the grout delivery pipe 8 and the grout spraying head 13. During grout spraying, the rotary motor 12 is controlled by an external controller. The output end of the rotary motor 12 drives the pinion 17 to rotate. The rotation of the pinion 17 drives the large gear 19, which meshes with it on one side, to rotate at the bottom of the slewing support 18. This causes the rotary frame 16, which is fixed at the bottom of the large gear 19, to rotate. This allows the angle of the grout spraying head 13 to be adjusted 360 degrees, so that grout can be sprayed evenly all around the inside of the shaft. When the grout spraying head 13 is working, it can be checked in real time by the camera 11 installed at the bottom of the connecting frame 2. The grout spraying situation of the shaft can be observed from the outside, which is convenient for timely adjustment.
[0017] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A novel vertical shaft shotcrete device, comprising a fixing frame (1), a connecting frame (2), and a grout delivery pipe (8), characterized in that: A winding machine (6) is installed on one side of the fixed frame (1), a fixed component is provided on the top of the connecting frame (2), an adjustment component is provided at the bottom of the connecting frame (2), a rotating frame (16) is fixedly connected to the bottom of the adjustment component, one end of the grout delivery pipe (8) is located at the bottom of the connecting frame (2), a grout delivery pipe (8) is fixedly connected to a grout spraying head (13), and a lifting component is provided between the fixed frame (1) and the connecting frame (2). The adjustment assembly includes a rotary motor (12), which is fixedly connected to the top of the connecting frame (2). A small gear (17) is fixedly connected to the output end of the rotary motor (12). A slewing bearing (18) is fixedly connected to the bottom of the connecting frame (2). A large gear (19) is rotatably connected to the bottom of the slewing bearing (18). The large gear (19) meshes with the small gear (17). The rotary frame (16) is fixedly connected to the bottom of the large gear (19).
2. The novel vertical shaft shotcrete device according to claim 1, characterized in that: The fixing component includes multiple support cylinders (10), all of which are fixedly connected to the top of the connecting frame (2) and are arranged around the connecting frame (2).
3. The novel vertical shaft shotcrete device according to claim 1, characterized in that: The lifting assembly includes a fixed pulley (4), which is fixedly connected to the bottom of the fixed frame (1). A fixed block (3) is fixedly connected to the bottom of the fixed frame (1), and a rope (5) is fixedly connected to the bottom of the fixed block (3). The other end of the rope (5) is located outside the winding machine (6), and a movable pulley (7) is installed on the top of the connecting frame (2).
4. A novel vertical shaft shotcrete device according to claim 3, characterized in that: The bottom of the rotating frame (16) is rotatably connected to the mounting frame (15), and the spray head (13) is fixedly connected to the bottom of the mounting frame (15).
5. A novel vertical shaft shotcrete device according to claim 3, characterized in that: The top of the connecting frame (2) is fixedly connected to a support block (9), and the movable pulley (7) is rotatably connected to the inside of the support block (9).
6. A novel vertical shaft shotcrete device according to claim 1, characterized in that: Multiple cameras (11) are fixedly connected to the outside of the rotating frame (16), and multiple water spray nozzles (14) are fixedly connected to the bottom of the connecting frame (2).
7. A novel vertical shaft shotcrete device according to claim 2, characterized in that: A square block (20) is fixedly connected to the top of the connecting frame (2). The position of the square block (20) corresponds to that of the supporting cylinder (10). The supporting cylinder (10) is located on the top of the square block (20).
8. A novel vertical shaft shotcrete device according to claim 3, characterized in that: The connecting frame (2) has a through hole (21) in the middle, and the slurry pipe (8) is located in the middle of the through hole (21).