An automatic material distribution system suitable for a tunnel

Abstract

The utility model discloses an automatic material distribution system suitable for tunnel, including trestle, template and the conveying device for conveying concrete, the template with the conveying device is located on the trestle, be equipped with anti -floating support, pressure sensor for detecting the pressure that the template exerts on the anti -floating support and multiple sets of material distribution chute on the template, and multiple sets of material distribution chute are along the longitudinal interval distribution of trestle, and the feed end of conveying device is equipped with the weight sensor for detecting the weight of concrete, and the discharge end of conveying device can with each group material distribution chute butt joint. The utility model can control the material distribution amount of each group material distribution chute basically consistent, and the degree of automation is high, can reduce manual participation, is favorable for improving construction efficiency and construction quality.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and in particular to an automatic material placement system suitable for tunnels. Background Technology

[0002] In recent years, with the development of tunnel construction technology towards intelligence and modularization, intelligent technology for tunnel construction equipment has made great strides, such as tunnel informatization and remote control, and has achieved many important results.

[0003] Currently, most concrete placement construction in tunnels in my country relies on manual guidance of concrete trucks. Automated placement construction is still in the exploratory stage and has not yet matured. Existing automated placement methods suitable for tunnel excavation in China suffer from drawbacks such as high labor intensity, low construction efficiency, and reliance on the experience of construction personnel for construction quality, which urgently need improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an automatic material placement system suitable for tunnels that is conducive to improving the level of intelligence and automation, reducing the intensity of manual labor, and improving construction efficiency and quality.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An automated concrete placing system suitable for tunnels includes a trestle, a formwork, and a conveying device for conveying concrete. The formwork and the conveying device are mounted on the trestle. The formwork is equipped with an anti-buoyancy support, a pressure sensor for detecting the pressure applied by the formwork to the anti-buoyancy support, and multiple sets of concrete placing chutes. The multiple sets of concrete placing chutes are distributed at intervals along the longitudinal direction of the trestle. The inlet end of the conveying device is equipped with a weight sensor for detecting the weight of the concrete, and the outlet end of the conveying device can be connected to each set of concrete placing chutes.

[0006] As a further improvement to the above technical solution: the trestle is provided with a first longitudinal track, and a template trolley is provided on the first longitudinal track, and the template is connected to the template trolley.

[0007] As a further improvement to the above technical solution: the template is also provided with multiple sets of vibration components, and the multiple sets of vibration components are arranged in a one-to-one correspondence with the multiple sets of fabric chutes.

[0008] As a further improvement to the above technical solution: each group of vibration components includes multiple vibration parts, which are distributed at lateral intervals along the trestle.

[0009] As a further improvement to the above technical solution: the conveying device includes a conveying bracket, a first conveying mechanism and a second conveying mechanism. The first conveying mechanism is disposed on the conveying bracket, and a second longitudinal track is provided on the conveying bracket. The second conveying mechanism is disposed on the second longitudinal track. The weight sensor is disposed at the feeding end of the first conveying mechanism. The discharging end of the first conveying mechanism is connected to the second conveying mechanism. The discharging end of the second conveying mechanism can be connected to each set of fabric chutes.

[0010] As a further improvement to the above technical solution: the trestle is provided with adjusting brackets at both ends of the conveying bracket, and the conveying bracket is slidably connected to the adjusting bracket so as to move longitudinally relative to the adjusting bracket.

[0011] As a further improvement to the above technical solution: the fabric chute is located on both sides of the template, the adjusting bracket is provided with a transverse track, the transverse track is provided with a transverse trolley, and the conveying bracket is slidably connected to the transverse trolley.

[0012] As a further improvement to the above technical solution: the conveying support is provided with a third longitudinal track, and the transverse trolley is provided with a longitudinal guide component that cooperates with the third longitudinal track.

[0013] As a further improvement to the above technical solution: the adjustment bracket is a gate-shaped bracket.

[0014] As a further improvement to the above technical solution: the first conveying mechanism and the second conveying mechanism are belt conveying mechanisms; or, the first conveying mechanism and the second conveying mechanism are spiral conveying mechanisms.

[0015] Compared with the prior art, the advantages of this utility model are: This utility model discloses an automatic concrete placing system suitable for tunnels. A concrete mixer truck unloads concrete onto the feed end of a conveying device, which then transports the concrete to a first set of placing chutes, completing the placement process. During placement, a weight sensor detects the weight of the concrete unloaded onto the conveying device, and a pressure sensor detects the pressure exerted by the formwork on the anti-buoyancy support. When both reach set values, it indicates that the area corresponding to the first set of placing chutes has been placed, and the concrete mixer truck stops unloading. The discharge end of the conveying device then connects to the second set of placing chutes, and the concrete mixer truck unloads again onto the feed end of the conveying device. This cycle continues until the entire construction section is covered. The system can control the placement amount of each set of placing chutes to be essentially consistent, exhibiting a high degree of intelligence and automation, reducing manual intervention, and improving construction efficiency and quality.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the automatic material placement system applicable to tunnels according to this utility model. Figure 2 This is a side view of the automatic material placement system for tunnels according to this utility model.

[0018] Figure 3 This is a side view structural diagram of the fabric chute of the present invention.

[0019] Figure 4 This is a side view structural diagram of the next set of fabric chutes of this utility model.

[0020] Figure 5 This is a schematic diagram of the working process of the automatic material placement system applicable to tunnels according to this utility model.

[0021] The labels in the diagram represent: 1. Trestle; 11. Main Bridge; 12. Front Approach Bridge; 13. Rear Approach Bridge; 2. Formwork; 21. Anti-buoyancy Support; 22. Pressure Sensor; 23. Concrete Chute; 24. Formwork Trolley; 25. Vibration Assembly; 251. Vibration Component; 3. Conveying Device; 31. Weight Sensor; 32. Conveying Support; 33. First Conveying Mechanism; 34. Second Conveying Mechanism; 35. Alarm Component; 4. Adjusting Support; 41. Longitudinal Guide Component; 42. Lateral Track; 43. Lateral Trolley; 5. Concrete Mixer Truck. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Figures 1 to 4 This illustration shows an embodiment of the automatic concrete placing system for tunnels according to this invention. The system includes a trestle bridge 1, a formwork 2, and a conveying device 3 for transporting concrete. The formwork 2 and the conveying device 3 are mounted on the trestle bridge 1. The formwork 2 is equipped with an anti-buoyancy support 21, a pressure sensor 22 for detecting the pressure applied by the formwork 2 to the anti-buoyancy support 21, and multiple sets of concrete placing chutes 23. The multiple sets of concrete placing chutes 23 are distributed longitudinally and at intervals along the trestle bridge 1. The inlet end of the conveying device 3 is equipped with a weight sensor 31 for detecting the weight of the concrete, and the outlet end of the conveying device 3 can connect to each set of concrete placing chutes 23. This embodiment of the automatic concrete placing system for tunnels is used for placing concrete into the invert arch layer and the filling layer of a tunnel. Preferably, the trestle bridge 1 includes a main bridge 11, a front approach bridge 12 located at the front end of the main bridge 11, and a rear approach bridge 13 located at the rear end of the main bridge 11. Construction equipment can move up and down the main bridge 11 using the front approach bridge 12 and the rear approach bridge 13. The formwork 2 and the conveying device 3 are located on the main bridge 11 of the trestle bridge 1. The length of the main bridge 11 can cover three 12-meter-long tunnel construction sections; see also Figure 1 Each set of fabric chutes 23 can be configured in multiple ways, which helps to increase the fabric coverage area and improve the uniformity of the fabric. The longitudinal direction is the length of the trestle 1, or the front-to-back direction of the tunnel; the transverse direction is the width of the trestle 1, or the left-to-right direction of the tunnel.

[0027] The automatic material placement system applicable to tunnels in this embodiment, such as... Figure 5As shown, the concrete mixer truck 5 unloads concrete to the feed end of the conveying device 3. The conveying device 3 then transports the concrete to the first set of placing chutes 23, completing the placement process. During placement, the weight sensor 31 detects the weight of the concrete unloaded onto the conveying device 3, and the pressure sensor 22 detects the pressure exerted by the template 2 on the anti-buoyancy support 21 (as the concrete is continuously placed, it generates an upward buoyancy force on the template 2, which is transmitted to the tunnel sidewall through the anti-buoyancy support 21 to prevent the template 2 from floating upward). When both reach their set values, it indicates that the area corresponding to the first set of placing chutes 23 has been placed, the concrete mixer truck 5 stops unloading, the discharge end of the conveying device 3 connects to the second set of placing chutes 23, and the concrete mixer truck 5 unloads again to the feed end of the conveying device 3 (specifically as shown in the diagram). Figure 3 and Figure 4 As shown), this process is repeated until the material is laid in the entire construction section. This ensures that the amount of material laid in each set of material chutes 23 is basically consistent, exhibiting a high degree of intelligence and automation. This reduces manual intervention and improves construction efficiency and quality. Preferably, the conveying device 3 includes an alarm component 35, such as a warning light or a honeycomb device. When the detection values ​​of the weight sensor 31 and the pressure sensor 22 approach the set values, the alarm component 35 issues an alarm.

[0028] Furthermore, in this embodiment, the trestle 1 is provided with a first longitudinal track, and a template trolley 24 is provided on the first longitudinal track. The template 2 is connected to the template trolley 24. The template trolley 24 can drive the template 2 and its anti-buoyancy support 21 and other components to move along the first longitudinal track, thereby adjusting the longitudinal position of the template 2 on the trestle 1, facilitating the movement of the template 2 to the next construction section. The structure is simple and easy to use.

[0029] In a preferred embodiment, the template 2 is also provided with multiple sets of vibrating components 25, which are arranged one-to-one with multiple sets of material feeding chutes 23. When the material feeding chutes 23 feed material, the corresponding vibrating components 25 vibrate the concrete to make the concrete fill densely.

[0030] Furthermore, in this embodiment, each set of vibration components 25 includes multiple vibration parts 251 (such as vibrating rods, vibrators, etc.). The multiple vibration parts 251 are distributed at intervals along the transverse direction of the trestle 1, which is conducive to achieving comprehensive vibration in the transverse direction, making the concrete filling dense.

[0031] Further, in this embodiment, the conveying device 3 includes a conveying support 32, a first conveying mechanism 33, and a second conveying mechanism 34. The first conveying mechanism 33 is mounted on the conveying support 32, which has a second longitudinal track. The second conveying mechanism 34 is mounted on the second longitudinal track. A weight sensor 31 is located at the feed end of the first conveying mechanism 33. The discharge end of the first conveying mechanism 33 is connected to the second conveying mechanism 34, and the discharge end of the second conveying mechanism 34 can connect to each set of material distribution chutes 23. During material distribution, after the concrete mixer truck 5 unloads, the concrete falls onto the first conveying mechanism 33, which then transports it to the second conveying mechanism 34. Finally, the second conveying mechanism 34 transports it to the material distribution chutes 23 to complete the distribution. The second conveying mechanism 34 can move along the second longitudinal track, facilitating connection with different material distribution chutes 23. It has a simple structure and is easy to use. The first conveying mechanism 33 and the second conveying mechanism 34 can be belt conveyors, or they can be screw conveyors, etc.

[0032] Furthermore, in this embodiment, the trestle 1 is provided with adjusting brackets 4 at both ends of the conveying bracket 32. The conveying bracket 32 ​​and the adjusting bracket 4 are slidably connected so as to move longitudinally relative to the adjusting bracket 4. That is, the adjusting bracket 4 provides support for the conveying bracket 32 ​​and the first conveying mechanism 33 and the second conveying mechanism 34 on it. At the same time, the conveying bracket 32 ​​can drive the first conveying mechanism 33 and the second conveying mechanism 34 on it to move longitudinally as a whole, which facilitates the movement of the conveying device 3 to the next construction area. The structure is simple and easy to use.

[0033] Furthermore, in this embodiment, the material chute 23 is located on both sides of the template 2, and the adjusting bracket 4 is provided with a transverse track 42, on which a transverse trolley 43 is provided. The conveying bracket 32 ​​is slidably connected to the transverse trolley 43. On the one hand, the conveying bracket 32 ​​can slide relative to the transverse trolley 43, thereby realizing the overall longitudinal movement of the conveying device 3 to the next construction section; on the other hand, the transverse trolley 43 can drive the entire conveying device 3 to move laterally along the transverse track 42 through the conveying bracket 32, which facilitates the comprehensive material placement on both sides of the tunnel. The structure is reasonable and effective.

[0034] In this embodiment, the conveying support 32 is provided with a third longitudinal track, and the transverse trolley 43 is provided with a longitudinal guide component 41 (such as a guide wheel set or slider) that cooperates with the third longitudinal track. Preferably, the third longitudinal track has an I-shaped structure, and the longitudinal guide component 41 is embedded between the upper and lower wing plates of the I-shaped track. This allows the conveying support 32 to move along the transverse track 42 without hindering the longitudinal movement of the conveying support 32 relative to the transverse trolley 43, resulting in a reasonable and effective structure.

[0035] As a preferred embodiment, the adjusting bracket 4 is a portal-shaped bracket, which allows other construction equipment to pass through easily without causing obstruction, and the structure is reasonable.

[0036] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. An automatic material placement system suitable for tunnels, characterized in that: The system includes a trestle (1), a template (2), and a conveying device (3) for conveying concrete. The template (2) and the conveying device (3) are mounted on the trestle (1). The template (2) is equipped with an anti-buoyancy support (21), a pressure sensor (22) for detecting the pressure applied by the template (2) to the anti-buoyancy support (21), and multiple sets of concrete placement chutes (23). The multiple sets of concrete placement chutes (23) are distributed at intervals along the longitudinal direction of the trestle (1). The inlet end of the conveying device (3) is equipped with a weight sensor (31) for detecting the weight of the concrete. The outlet end of the conveying device (3) can be connected to each set of concrete placement chutes (23).

2. The automatic material placement system for tunnels according to claim 1, characterized in that: The trestle (1) is provided with a first longitudinal track, and a template trolley (24) is provided on the first longitudinal track. The template (2) is connected to the template trolley (24).

3. The automatic material placement system for tunnels according to claim 1, characterized in that: The template (2) is also provided with multiple sets of vibrating components (25), and the multiple sets of vibrating components (25) are arranged in a one-to-one correspondence with the multiple sets of fabric chutes (23).

4. The automatic material placement system for tunnels according to claim 3, characterized in that: Each group of the vibrating assembly (25) includes multiple vibrating components (251), which are distributed at transverse intervals along the trestle (1).

5. The automatic material placement system for tunnels according to any one of claims 1 to 4, characterized in that: The conveying device (3) includes a conveying bracket (32), a first conveying mechanism (33) and a second conveying mechanism (34). The first conveying mechanism (33) is mounted on the conveying bracket (32). The conveying bracket (32) is provided with a second longitudinal track. The second conveying mechanism (34) is mounted on the second longitudinal track. The weight sensor (31) is mounted at the feed end of the first conveying mechanism (33). The discharge end of the first conveying mechanism (33) is connected to the second conveying mechanism (34). The discharge end of the second conveying mechanism (34) can be connected to each set of fabric chutes (23).

6. The automatic material placement system for tunnels according to claim 5, characterized in that: The trestle (1) is provided with adjusting brackets (4) at both ends of the conveying bracket (32). The conveying bracket (32) and the adjusting bracket (4) are slidably connected so as to move longitudinally relative to the adjusting bracket (4).

7. The automatic material placement system for tunnels according to claim 6, characterized in that: The fabric chute (23) is located on both sides of the template (2). The adjusting bracket (4) is provided with a transverse track (42), and the transverse track (42) is provided with a transverse trolley (43). The conveying bracket (32) is slidably connected to the transverse trolley (43).

8. The automatic material placement system for tunnels according to claim 7, characterized in that: The conveying support (32) is provided with a third longitudinal track, and the transverse trolley (43) is provided with a longitudinal guide component (41) that cooperates with the third longitudinal track.

9. The automatic material placement system for tunnels according to claim 7, characterized in that: The adjusting bracket (4) is a gate-shaped bracket.

10. The automatic material placement system for tunnels according to claim 5, characterized in that: The first conveying mechanism (33) and the second conveying mechanism (34) are belt conveying mechanisms; or, the first conveying mechanism (33) and the second conveying mechanism (34) are screw conveying mechanisms.

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