A device and method for long distance and large slope concrete charging

Abstract

A device and method for long-distance large-slope inclined plane concrete storage, mainly composed of a conveying trolley, a receiving belt conveyor, a feeding belt conveyor, a stand, a system traction device, a traction protection device, a rotating device and a distributing machine. The moving part is supported by the traction device under the protection of the safety protection part, and the conveying part is unloaded from the self-unloading vehicle on the top platform. The conveying trolley controls the hydraulic arc door to feed the receiving belt, and finally feeds each part of the storage site through the distributing machine. The covering radius of the distributing machine is 2-20 meters. The construction device and method can meet and complete the concrete storage of each part of the long-distance large-slope inclined plane, and has the characteristics of quality control and high construction intensity.

Description

Technical Field

[0001] This invention designs a concrete conveying technology, particularly a device for long-distance, steep-slope pouring in water conservancy construction. Background Technology

[0002] In current water conservancy construction, long-distance, steeply sloping sections such as spillways are typically constructed using a variety of methods, including concrete pumps and suspended concrete containers. However, due to increasingly stringent requirements for spillway concrete pouring, the wear-resistant concrete used cannot be transported by pumps; and the tower cranes used to transport the suspended concrete containers also need to handle the hoisting and assembly of reinforcing steel and formwork, resulting in low efficiency and inability to meet the required strength for concrete placement. Because of these factors, the sophistication of the concrete placement methods for long-distance, steeply sloping spillways directly determines the construction progress and quality of the project.

[0003] Given the current state of construction technology in water conservancy and hydropower projects, the most efficient method for concrete placement is using belt conveyors. However, traditional belt conveyor systems are relatively fixed and cannot be moved over a large area, making them unsuitable for concrete pouring on long-distance slopes. Therefore, the purpose of this project is to research a belt conveyor system capable of handling concrete placement on long-distance, steep slopes. Combining current advanced concrete conveying technology with the construction characteristics of long-distance, steep slopes, a construction technique suitable for concrete pouring on such slopes is proposed. Summary of the Invention

[0004] This invention provides an apparatus and method for long-distance, steep-slope concrete pouring in water conservancy projects, solving the long-standing problem of long-distance, steep-slope concrete pouring in water conservancy projects, accelerating the concrete pouring speed, and achieving a concrete delivery strength of 80-120 m³ / h. 3 / h.

[0005] The technical solution of the present invention is a device for placing concrete on a long-distance, steep-slope slope. The device is mounted on a track and includes a horizontal conveying component, a concrete placing machine, a supporting component, a traction component, and a safety protection component. The horizontal conveying component and the concrete placing machine are connected to the track through the supporting component. The traction component pulls the supporting component, and the safety protection component provides limiting protection for the supporting component. The horizontal conveying component includes a feeding trolley with a hydraulic arc gate, a receiving belt conveyor, and a feeding belt conveyor. The hydraulic arc gate is located at the bottom of the feeding trolley. A first driving device drives the receiving belt conveyor to move, and a second driving device drives the feeding belt conveyor to move. The support components include a receiving belt support component, a feeding belt support component, and a placing machine support component. The receiving belt support component supports the receiving belt conveyor, the feeding belt support component supports the feeding belt, and the placing machine support component supports the placing machine. Each of the receiving belt support component, the feeding belt support component, and the placing machine support component has wheels installed below it, and the wheels slide along the track. The traction component includes a winch, a traction wire rope, a balance beam, and a redirecting roller. The winch driven by the third drive device is located at the top platform. One end of the traction wire rope is connected to the winch and the other end is connected to the balance beam. The balance beam is connected to the redirecting roller, which is installed below the receiving belt support component, the feeding belt support component, or the placing machine support component. The safety protection component is located on the track on which the lower wheels of the receiving belt support component, the feeding belt support component, or the placing boom support component slide. The safety protection component includes a track dragger, a rubber buffer baffle, and a force sensor. The track dragger is installed on the track at the rear of the wheel and is connected to the receiving belt support component, the feeding belt support component, or the placing boom support component by a steel wire rope. The rubber buffer baffle is fixed on the track at the front of the wheel. The force sensor is located on the traction steel wire rope. The hydraulic track clamp is located below the placing boom support device.

[0006] Furthermore, the first drive device, the second drive device, the third drive device, and the rail carrier are respectively connected to the controller; Furthermore, the hydraulic arc gate is an electronic valve, and the hydraulic arc gate is connected to the controller.

[0007] Furthermore, the material handling trolley is equipped with a proximity sensor, which is connected to the controller.

[0008] A method for placing concrete on a long-distance, steeply sloping surface, the method comprising parallel conveying and concrete distribution: The parallel conveying refers to the continuous parallel conveying of concrete to a designated horizontal position using a parallel conveyor belt. The concrete distribution refers to the process of using a concrete placing boom to transport concrete from a horizontally designated position to the pouring location.

[0009] The parallel conveying system transports concrete from the top platform to the receiving belt using two material transport vehicles. While one material transport vehicle delivers the concrete to the receiving belt, the other material transport vehicle fills the hopper at the dump truck parking area, alternating between the two.

[0010] The advantages of this invention are: 1. High work efficiency, with a pouring strength of 80-120 cubic meters per hour; 2. Suitable for concrete pouring on long-distance, steep slopes, with a concrete transport range of up to 20 meters in radius.

[0011] Concrete is transported by material transport trolleys, and the entire pouring device is moved by a traction system to ensure that concrete can be poured into the formwork along the entire length of the slope.

[0012] The safety and stability of the entire device during movement and use are controlled and ensured through safety protection and support components. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and practical examples; Figure 1 This is a schematic diagram of the overall structure of a device for pouring concrete onto long-distance, steeply sloping surfaces. Figure 2 This is a schematic diagram of a traction structure for a device used for pouring concrete into a long-distance, steeply sloping surface. Figure 3 This is a schematic diagram of the safety protection structure of a device used for pouring concrete onto long-distance, steeply sloping surfaces. Figure 4 This is a schematic diagram of the conveying control of the present invention; Figure 5 This is a schematic diagram of the movement control of the present invention; As shown in the figure, the components are: horizontal conveyor 1, material placing machine 3, safety protection component 4, controller 5, feeding trolley 11, receiving belt conveyor 12, loading belt conveyor 13, first drive device 14, second drive device 15, proximity sensor 16, winch 31, traction wire rope 32, balance beam 33, redirecting roller 34, rail dragger 41, rubber buffer baffle 42, force sensor 43, hydraulic rail clamp 44, hydraulic component 441, and clamp 442. Detailed Implementation

[0014] A device for placing concrete on a long-distance, steep-slope slope is provided. The device is mounted on a track and includes a horizontal conveying component 1, a concrete placing machine 3, a support component, a traction component, and a safety protection component 4. The horizontal conveying component 1 and the concrete placing machine are connected to the track through the support component. The traction component pulls the support component, and the safety protection component 4 provides limiting protection for the support component. like Figure 1In the horizontal conveying component 1, there are a feeding trolley 11 with a hydraulic arc gate, a receiving conveyor belt 12, and a loading conveyor belt 13. The feeding trolley 11 is located at the dump truck parking platform and can move between the platform and the receiving conveyor belt 12. The other end of the receiving conveyor belt 12 is connected to the end of the loading conveyor belt 13. A first drive device 14 drives the receiving conveyor belt 12, and a second drive device 15 drives the loading conveyor belt 13. The other end of the loading conveyor belt 13 is connected to a concrete placing boom. A first traction device 35 located under the conveying platform is connected to the feeding trolley 11 and controls the feeding trolley 11 to slide along the track. During operation, concrete is transported to the hydraulic arc gate feeding trolley 11 parked at the platform by a transport vehicle or other tools. The feeding trolley 11 has a volume of 6m³. 3 The lower outlet is equipped with an arc-shaped gate to control the material flow. The opening of the arc-shaped gate is controlled by a hydraulic push rod and the opening of the arc-shaped gate is controlled by an electromagnetic reversing valve. A proximity sensor 16 is installed on the feeding trolley 11 to accurately stop next to the receiving belt conveyor 12. Then the concrete is conveyed to the placing machine through the receiving belt conveyor 12 and the feeding belt conveyor 13. like Figure 1 As shown, the support components include a receiving belt support component, a feeding belt support component, and a placing machine support component. The receiving belt support component, the feeding belt support component, and the placing machine support component are respectively installed below the receiving belt 12, the feeding belt 13, and the placing machine, and are responsible for supporting the receiving belt 12, the feeding belt 13, and the placing machine 3 on the track respectively. like Figure 2 As shown, the traction component includes a winch 31, traction wire ropes 32, balance beams 33, and redirecting rollers 34. The winch 31 is located at the dump truck parking platform. The traction wire ropes 32 provide power for the horizontal conveying component 1 to move along the track. One end of each of the two traction wire ropes 32 is connected to the winch 31, and the other end is connected to three horizontally arranged balance beams 33. The balance beams 33 are balancing devices for the two traction wire ropes 32. Each balance beam 33 is connected to a redirecting roller 34. The three balance beams 33 are respectively installed at the rear ends of the receiving belt support component, the feeding belt support component, and the placing boom support component to maintain the force balance of the system during traction. Each of the three redirecting rollers 34 is respectively installed below the receiving belt support component, the feeding belt support component, and the placing boom support component, and is isolated from other components by an isolation component without affecting the movement of the traction wire ropes 32.

[0015] like Figure 3As shown, the safety protection component 4 includes a rail dragger 41, a rubber buffer baffle 42, a force sensor 43, and a hydraulic rail clamp 44. The rail dragger 41 is installed on the rail behind the wheel and is connected to the receiving belt support component, the feeding belt support component, or the placing boom support component by a steel wire rope. It is fixed to the rear rail when the entire device is stationary to prevent the device from sliding down the rail. It needs to be removed during movement. The rubber buffer baffle 42 is fixed to the rail in front of the receiving belt support component, the feeding belt support component, or the placing boom support component. The downward force is buffered by the rubber buffer block 421; the force sensor 43 is installed on the traction wire rope 32 to measure the force on the traction wire rope 32 in real time, and the force sensor 43 is connected to the controller 5; the hydraulic rail clamp 44 includes a hydraulic component 441 and a clamp 442. The hydraulic rail clamp 44 is located behind the wheel of the support component of the concrete placing boom. When the power is off, the clamp 442 clamps the rail. When the power is on, the hydraulic component 441 can be controlled by an electric button to open the clamp 442 and release the rail. The hydraulic component 441 is connected to the controller 5.

[0016] Figure 4 , 5 As shown, the first drive device 14, the second drive device 15, the first traction device 35, the rail dragger 41, the force sensor 43, and the hydraulic component 441 are respectively connected to the controller 5. The proximity sensor 16 and the weight sensor 17 are installed on the feeding trolley 11 and are connected to the controller 5. The first traction device 35 is connected to the feeding trolley 11 and controls the feeding trolley 11 to slide along the track.

[0017] During operation, when the weight sensor 17 detects that the weight in the feeding trolley 11 has reached the set value, the weight sensor 17 sends a signal to the controller 5. The controller 5 then controls the first traction device 35 to start, moving the feeding trolley 11 downwards along the track. During this movement, when the proximity sensor 16 detects that a feeding trolley 11 has reached a designated location near the receiving conveyor belt 12, the proximity sensor 16 sends a signal to the controller 5. The controller 5 then controls the first drive device 14 and the second drive device 15 to start the receiving conveyor belt 12 and the loading conveyor belt 13, while simultaneously stopping the first traction device 35. When the weight sensor 17 detects that the weight in the feeding trolley 11 has dropped to the set value, the weight sensor 17 sends a signal to the controller 5. The controller 5 then controls the first traction device 35 to start, moving the feeding trolley 11 upwards along the track, while simultaneously stopping the proximity sensor 16. When the feeding trolley 11 moves away from the designated location near the receiving conveyor belt 12, the proximity sensor 16 sends a signal to the controller 5. The controller 5 then controls the first drive device 14 and the second drive device 15 to stop or slow down the operation of the receiving conveyor belt 12 and the feeding conveyor belt 13.

[0018] like Figure 5 As shown, the movement must be carried out in a non-working state. First, remove the rail dragger 41 and rubber buffer baffle 42 from the track. Then, use the controller 5 to send a signal to the hydraulic component 441 and the second traction device. The hydraulic component 441 controls the clamp 442 to open, thereby releasing the track. At the same time, after receiving the signal, the second traction device starts according to the direction of movement, moving the entire device up or down along the track. After the entire device has moved to the designated position, use the controller 5 to send a signal to the winch 31 and the hydraulic component 441. After receiving the signal, the winch 31 stops working. At the same time, after receiving the signal, the hydraulic component 441 controls the clamp 442 to close, thereby clamping the track. Install the rail dragger 41 and rubber buffer baffle 42. The movement of the entire device is then complete.

[0019] In the event of an emergency, if the force sensor 43 detects excessive tension (due to movement being stuck or being impacted by an external force) or insufficient tension (due to the traction wire rope 32 breaking), it sends a signal to the controller 5. The controller 5 then controls the first drive device 14, the second drive device 15, the first traction device 35, the winch 31, and the hydraulic rail clamp 44 to stop working, thus ensuring the safety of the overall equipment.

[0020] An apparatus and method for placing concrete on a long-distance, steep slope includes parallel conveying and concrete distribution. Parallel conveying refers to the continuous horizontal transport of concrete to a designated horizontal position using a material transport trolley combined with a parallel conveyor belt. This can be achieved using a horizontal conveyor component 1. The so-called concrete distribution refers to the process of using a concrete placing boom to transport concrete from a vertically designated position to the pouring location.

Claims

1. A device for placing concrete on a long-distance, steeply sloping surface, characterized in that: The device is mounted on a track and includes a horizontal conveying component, a fabric placing machine, a support component, a traction component, and a safety protection component. The horizontal conveying component and the fabric placing machine are connected to the track via the support component. The traction component pulls the support component, and the safety protection component provides limiting protection for the support component. The horizontal conveying component includes a feeding trolley with a hydraulic arc gate, a receiving belt conveyor, and a loading belt conveyor. The hydraulic arc gate is located at the bottom of the feeding trolley. A first driving device drives the receiving belt conveyor to move, and a second driving device drives the loading belt conveyor to move. The feeding trolley is driven to slide along the track by an independent first traction device. The support components include a receiving belt support component, a feeding belt support component, and a placing machine support component. The receiving belt support component supports the receiving belt conveyor, the feeding belt support component supports the feeding belt, and the placing machine support component supports the placing machine. Each of the receiving belt support component, the feeding belt support component, and the placing machine support component has wheels installed below it, and the wheels slide along the track. The traction component includes a winch, traction wire ropes, balance beams, and redirecting rollers. The winch, driven by the third drive device, is located at the top platform. One end of each of the two traction wire ropes is connected to the winch, and the other end is connected to three horizontally arranged balance beams. The three balance beams are respectively installed at the rear ends of the receiving belt support component, the feeding belt support component, and the placing machine support component. Each of the three redirecting rollers is installed below the receiving belt support component, the feeding belt support component, and the placing machine support component. The two traction wire ropes, through the three balance beams, enable the receiving belt support component, the feeding belt support component, and the placing machine support component to move synchronously along the track under the drive of the winch. The safety protection components are located on the track where the wheels of the placing boom support slide. These components include a track dragger, a rubber buffer baffle, a force sensor, and a hydraulic track clamp. The track dragger is installed on the track behind the wheels and connected to the placing boom support via a steel wire rope. When the device is stationary, it is fixed to the rear track to prevent downward sliding. The rubber buffer baffle is fixed on the track in front of the wheels to buffer downward forces. The force sensor is installed on the traction steel wire rope to measure the force on the rope in real time. The hydraulic track clamp is located below the placing boom support and includes a hydraulic component and a clamp. When not powered, the clamp holds the track; when powered on, an electric button controls the hydraulic component to open the clamp and release the track. The hydraulic component is connected to a controller. When the force sensor detects abnormal tension, it sends a signal to the controller, which then controls the hydraulic track clamp to hold the track. This device is used for pouring concrete into long-distance, steep-slope slopes. It includes parallel conveying and concrete distribution. During parallel conveying, a horizontal conveying component continuously conveys the concrete to the designated horizontal position. During concrete distribution, a concrete placing machine conveys the concrete from the designated horizontal position to the pouring location.

2. The device for placing concrete on a long-distance, steep-slope slope according to claim 1, characterized in that: The first drive device, the second drive device, the third drive device, and the rail carrier are respectively connected to the controller.

3. The device for placing concrete on a long-distance, steep-slope slope according to claim 1, characterized in that: The hydraulic arc gate is an electronic valve, and the hydraulic arc gate is connected to the controller.

4. The device for placing concrete on a long-distance, steep-slope slope according to claim 1, characterized in that: The feeding trolley is equipped with a proximity sensor, which is connected to the controller.

5. The device for placing concrete on a long-distance, steep-slope slope according to claim 1, characterized in that: The parallel conveying system transports concrete from the top platform to the receiving belt using two material transport vehicles. While one material transport vehicle delivers the concrete to the receiving belt, the other material transport vehicle fills the hopper at the dump truck parking area, alternating between the two.

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