Tunnel guniting material feeding device

Abstract

A tunnel guniting material feeding device comprises a collecting hopper, a conveying belt, a driving device and a guniting machine, the collecting hopper comprises a framework and a bottom plate arranged on the framework, the tail end of the bottom plate is higher than the front end so that the bottom plate can be obliquely arranged, the conveying belt is arranged on the bottom plate and arranged in the inclination direction of the bottom plate, and the guniting machine is arranged at the tail end of the conveying belt. The driving device is in transmission connection with the conveying belt, and the conveying belt is driven by the driving device to move from the collecting hopper to the pulp shooting machine. The device is provided with the conveying belt, the guniting materials in the collecting hopper can be conveyed to the high position from the low position through the conveying belt, the guniting materials are output to the guniting machine at the tail end of the conveying belt, and therefore automatic feeding is achieved, the labor intensity of constructors is effectively reduced, and the working efficiency is improved. Compared with a hydraulic lifting feeding machine, the device has the advantages that the collecting hopper does not need to be raised, so that the occupied space is small, and the device can be suitable for guniting material feeding operation of tunnels with medium and small sections.

Description

Technical Field

[0001] The utility model relates to the technical field of shotcrete feeding, in particular to a tunnel shotcrete feeding device. Background Art

[0002] A tunnel is a building constructed underground, underwater or in a mountain body for laying railways or building roads for motor vehicles to pass through. During tunnel construction, tunnel shotcreting construction is required. The commonly used tunnel shotcrete feeding device uses a hydraulic lifting feeder to transport shotcrete. When transporting shotcrete, the hopper needs to be lifted to form an inclined plane higher than the shotcreting machine, so that the shotcrete slides from a high place to a low place along the inclined plane by its own weight onto the shotcreting machine. However, in small and medium cross-section tunnel projects, due to the small cross-section, there is no space for the hopper to be lifted, so the hydraulic lifting feeder cannot be used. In this case, transporting shotcrete from a low place to a high place requires manual transportation, which will greatly increase the labor intensity of construction workers and reduce work efficiency. Summary of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a tunnel shotcrete feeding device, which is suitable for shotcrete feeding operations in small and medium cross-section tunnels, can realize automatic feeding, reduce the labor intensity of construction workers, and improve work efficiency.

[0004] In order to achieve the above object, the technical solution adopted by the utility model is: to provide a tunnel shotcrete feeding device, including an aggregate hopper, a conveyor belt, a driving device and a shotcreting machine. The aggregate hopper includes a framework and a bottom plate arranged on the framework. The end of the bottom plate is higher than the front end, so that it is inclined. The conveyor belt is arranged on the bottom plate and is arranged along the inclined direction of the bottom plate. The shotcreting machine is arranged at the end of the conveyor belt. The driving device is in transmission connection with the conveyor belt, and drives the conveyor belt to move from the aggregate hopper towards the shotcreting machine through the driving device.

[0005] As a further improvement of the utility model, the driving device includes a motor, a coupling, a speed reducer, a driving roller and a driven roller. The motor is connected to the speed reducer through the coupling. The speed reducer is connected to the driving roller. The driven roller and the driving roller are respectively located at the front and rear ends of the conveyor belt. The conveyor belt is wound around the driven roller and the driving roller to form an annular structure.

[0006] As a further improvement of the utility model, it further includes a motor switch box, in which an electronic circuit breaker and a leakage protection device are arranged. The electronic circuit breaker and the leakage protection device are respectively electrically connected to the motor.

[0007] As a further improvement of the utility model, it further includes a controller, and the controller is electrically connected to the motor.

[0008] As a further improvement of the utility model, the aggregate hopper further includes a front baffle, a rear baffle, a left baffle and a right baffle arranged on four sides of the bottom plate, and the rear baffle is provided with an opening at the position of the conveyor belt.

[0009] As a further improvement of the utility model, the bottom plate is provided with material guiding inclined planes on the left and right sides of the conveyor belt.

[0010] As a further improvement of the utility model, supporting rollers are arranged at the bottom of the conveyor belt.

[0011] As a further improvement of the utility model, two conveyor belts are provided, and are arranged on the left and right sides between the two conveyor belts.

[0012] As a further improvement of the utility model, lifting points are arranged on the framework.

[0013] The beneficial effects of the utility model are as follows: the device of the utility model is provided with a conveyor belt, and the spraying slurry in the aggregate hopper can be conveyed from a low place to a high place by using the conveyor belt, and the spraying slurry is output to the spraying machine at the end of the conveyor belt, so as to realize automatic feeding, effectively reduce the labor intensity of construction workers and improve work efficiency. Compared with the hydraulic lifting feeder, the device does not need to lift the aggregate hopper, so it occupies a small space and can be applied to the feeding operation of spraying slurry in small and medium-sized section tunnels. Description of the Drawings

[0014] Figure 1 is a three-dimensional schematic diagram of the device of the utility model;

[0015] Figure 2 is a top view schematic diagram of the device of the utility model;

[0016] Figure 3 is a side view schematic diagram of the device of the utility model;

[0017] Marking description: aggregate hopper 1, framework 11, lifting point 111, bottom plate 12, material guiding inclined plane 121, front baffle 13, rear baffle 14, left baffle 15, right baffle 16, conveyor belt 2, supporting roller 21, driving roller 3, driven roller 31, spraying machine 4, controller 5, motor switch box 6. Detailed Embodiments

[0018] The following further describes the utility model in conjunction with specific embodiments and the drawings.

[0019] This technical solution has been successfully applied to the Baijing Main Canal Project in Jingyan County, Sichuan Province.

[0020] As Figures 1-3 shown, a tunneling spraying slurry feeding device includes an aggregate hopper 1, a conveyor belt 2, a driving device and a spraying machine 4.

[0021] The collecting hopper 1 is made of 14# I-beam, and its overall weight is lighter than that of the hydraulic lifting loader, and it is easy to move when used in the tunnel. The collecting hopper 1 includes a frame 11, a bottom plate 12, a front baffle 13, a rear baffle 14, a left baffle 15 and a right baffle 16.

[0022] The frame 11 is provided with a lifting point 111 , and the lifting point 111 is used to facilitate the lifting of the aggregate hopper 1 .

[0023] The bottom plate 12 is disposed on the frame 11 , and the end of the bottom plate 12 is higher than the front end so that the bottom plate 12 is tilted to form a slope disposed from low to high.

[0024] The front baffle 13, the rear baffle 14, the left baffle 15 and the right baffle 16 are respectively arranged on the four sides of the bottom plate 12 to form a containment structure to prevent the spraying material on the bottom plate 12 from leaking out from the four sides.

[0025] The conveyor belt 2 is used to convey the spraying material. Two conveyor belts 2 are provided. The two conveyor belts 2 are arranged in parallel on the bottom plate 12 and are arranged along the inclined direction of the bottom plate 12. The rear baffle 14 is provided with an opening at the position of the conveyor belt 2 to prevent the rear baffle 14 from blocking the conveyor belt 2.

[0026] The bottom plate 12 is provided with a material guiding slope 121 on the left and right sides of the conveyor belt 2, and the sprayed slurry on the bottom plate 12 can slide down onto the conveyor belt 2 along the material guiding slope 121. In addition, in order to make the sprayed slurry slide onto the conveyor belt 2 more efficiently, the bottom plate 12 and the conveyor belt 2 are arranged in a non-planar manner, and an angle of at least 10 degrees is arranged between the bottom plate 12 and the conveyor belt 2.

[0027] Two shotcrete machines 4 are provided, and the two shotcrete machines 4 are respectively arranged at the ends of the two conveyor belts 2 and are located below the conveyor belts 2 , so that the shotcrete material on the conveyor belts 2 can fall into the shotcrete machines 4 at the ends of the conveyor belts 2 .

[0028] Each conveyor belt 2 is respectively equipped with a separate driving device, and the conveyor belt 2 is connected to the driving device by transmission, and the conveyor belt 2 is driven by the driving device to move from the collecting hopper 1 to the direction of the shotcrete machine 4, so that the shotcrete material on the conveyor belt 2 can be transported from a low place to a high place along the inclined direction of the bottom plate 12. Each conveyor belt 2 is equipped with a separate driving device, which can realize the separate control of each conveyor belt 2.

[0029] The driving device includes a motor, a coupling, a reducer, a transmission roller 3 and a driven roller 31. The motor is connected to the reducer through a coupling, and the reducer is connected to the transmission roller 3. The driven roller 31 and the transmission roller 3 are respectively located at the front and rear ends of the conveyor belt 2. The conveyor belt 2 wraps around the driven roller 31 and the transmission roller 3 to form an annular structure.

[0030] The driving device is driven by a motor and can control the start / stop and speed of the motor, making the start / stop and speed of the conveyor belt 2 controllable, so as to accurately control the feeding volume of the shotcreting machine 4. The above control is realized by the controller 5. Each driving device is separately equipped with a controller 5, and the controller 5 is electrically connected to the motor. The start / stop and speed of the motor can be controlled by using the controller 5, and the operation is simple and convenient.

[0031] Each driving device is separately equipped with a motor switch box 6. An electronic circuit breaker and a leakage protection device are arranged in the motor switch box 6, and the electronic circuit breaker and the leakage protection device are respectively electrically connected to the motor, so as to ensure the safety of construction electricity use.

[0032] Support rollers 21 are arranged at the bottom of the conveyor belt 2. The conveyor belt 2 is supported by the support rollers 21, which can prevent the conveyor belt 2 from collapsing and ensure the movement stability of the conveyor belt 2.

[0033] When the above device is used, first use a transport vehicle to pour the shotcreting material into the aggregate hopper 1. The shotcreting material slides onto the conveyor belt 2. The motor is started through the controller 5. The motor drives the conveyor belt 2 to move, so that the shotcreting material on the conveyor belt 2 can be transported from a low place to a high place along the conveyor belt 2, and then falls onto the shotcreting machine 4 at the end of the conveyor belt 2, thus completing the feeding work.

[0034] The above embodiments are only used to conveniently illustrate the present invention. Any person with ordinary knowledge in the technical field can, without departing from the technical features of the present invention, make equivalent embodiments with partial changes or modifications by using the technical content disclosed in the present invention, and without departing from the technical feature content of the present invention, still fall within the scope of the technical features of the present invention.

Claims

1. A feeding device for shotcrete in a tunnel, characterized in that: It includes an aggregate hopper, a conveyor belt, a driving device and a shotcreting machine. The aggregate hopper includes a framework and a bottom plate arranged on the framework. The end of the bottom plate is higher than the front end, so that it is inclined. The conveyor belt is arranged on the bottom plate and along the inclined direction of the bottom plate. The shotcreting machine is arranged at the end of the conveyor belt. The driving device is in transmission connection with the conveyor belt, and drives the conveyor belt to move from the aggregate hopper towards the shotcreting machine through the driving device.

2. The feeding device for tunnel shotcrete material according to claim 1, wherein: The driving device includes a motor, a coupling, a reducer, a driving roller and a driven roller. The motor is connected to the reducer through the coupling. The reducer is connected to the driving roller. The driven roller and the driving roller are respectively located at the front and rear ends of the conveyor belt. The conveyor belt is wound around the driven roller and the driving roller to form an annular structure.

3. The feeding device for shotcrete in a tunnel according to claim 2, characterized in that: It also includes a motor switch box, in which an electronic circuit breaker and a leakage protection device are arranged. The electronic circuit breaker and the leakage protection device are respectively electrically connected to the motor.

4. The feeding device for tunnel spraying mortar according to claim 2, wherein: It also includes a controller, which is electrically connected to the motor.

5. The feeding device for shotcreting material in a tunnel according to claim 1, wherein: The aggregate hopper also includes a front baffle, a rear baffle, a left baffle and a right baffle arranged on the four sides of the bottom plate. The rear baffle is provided with an opening at the position of the conveyor belt.

6. The feeding device for shotcrete material in a tunnel according to claim 1, characterized in that: The bottom plate is provided with guide slopes on the left and right sides of the conveyor belt.

7. The feeding device for tunnel shotcrete slurry according to claim 1, wherein: Supporting rollers are arranged at the bottom of the conveyor belt.

8. The feeding device for shotcrete material in a tunnel according to claim 1, wherein: There are two conveyor belts, which are arranged on the left and right sides between the two conveyor belts.

9. The feeding device for shotcreting material in a tunnel according to claim 1, characterized in that: Lifting points are arranged on the framework.

Images