A belt conveying device and a concrete pouring device for dam panel concrete pouring

Abstract

The application discloses a belt conveying device and a concrete pouring device for dam panel concrete pouring, which comprises a set of supporting devices, a distributing belt conveyor, a transferring belt conveyor and a conveying pipe. The set of supporting devices comprises a first supporting assembly arranged at the bottom of a dam and a second supporting assembly arranged at the top of the dam. The first supporting assembly and the second supporting assembly can move synchronously along an X direction. The first end of the distributing belt conveyor is installed on the first supporting assembly, the second end is installed on the second supporting assembly, and the discharging part of the distributing belt conveyor can move along a Y direction. The transferring belt conveyor is fixedly installed on the first supporting assembly, the feeding end is communicated with the discharging port of a concrete device, and the discharging end is located above the belt working part of the distributing belt conveyor. The conveying pipe is fixedly arranged at the position of the discharging part of the distributing belt conveyor, and the feeding end is communicated with the discharging part of the distributing belt conveyor. The X direction is the dam axis direction, and the Y direction is the length direction of the belt working part of the distributing belt conveyor which is perpendicular to the X direction.

Description

Technical Field

[0001] This application belongs to the field of concrete pouring technology, specifically relating to a belt conveyor and concrete pouring equipment for pouring concrete for dam face panels. Background Technology

[0002] The pouring of concrete for dam panels has always been characterized by discontinuity, unevenness, slow pouring, and difficulty in quality control. This results in long construction periods, large workforces, high labor intensity, and significant risks. In related technologies, concrete pouring is mainly carried out via chutes, which presents the following technical problems:

[0003] (1) High risk of aggregate segregation: Concrete relies on its own weight to slide down. If the slope is large, the length is long, or the concrete slump is not properly controlled (especially the panel often uses low slump crack-resistant concrete), coarse aggregate is easy to roll and accumulate, resulting in uneven gradation and strength dispersion in the slab.

[0004] (2) Poor controllability of material distribution: The material distribution range at the end of the chute is limited, requiring manual dragging or movement with the sliding mold. In the narrow strip-shaped silo surface of the panel (the conventional width is only 8–15m), it is easy to cause local overload, cold joints or "aggregate pockets", which affects the seepage prevention.

[0005] (3) Vibration restrictions and insufficient density: The discharge point of the chute is fixed or moves slowly, making it difficult for the vibrator to keep up with the layered vibration in time; the concrete panel is thin (usually 30-60cm) and densely reinforced, which easily forms honeycomb, holes or areas that are not properly vibrated.

[0006] (4) Challenges in chute installation and stability: On steep slopes, chutes need to be frequently anchored to the slope reinforcement or dowel bars. During construction, they are prone to loosening, deformation, or even slippage, which can lead to safety risks and material deviation. If the chute is lifted synchronously with the panel during dismantling (such as when it is dismantled with the slipform), the operation requires high precision and can easily damage the newly poured concrete.

[0007] (5) The quality of the construction joint and the warehouse surface is difficult to guarantee: the material is often piled up in the warehouse when the chute is used. If the warehouse is not leveled in time or the same proportion of stone-free mortar is not laid first, it is easy to form slag inclusions, weak surfaces or poor interlayer bonding under the chute trajectory.

[0008] (6) Adaptability is limited by the panel structure: the panels are mostly of non-uniform thickness, variable cross-section, and have toe plate transition structures. The chute covers many blind spots, and auxiliary small chutes or pump trucks are still needed to replenish materials at the corners, increasing process overlap and quality control points. Summary of the Invention

[0009] Objective: In view of at least one of the above technical problems, this application provides a belt conveyor and a concrete pouring device for dam panel concrete pouring, so as to achieve full coverage of the dam panel in the material placement range and rapid, continuous and uniform concrete pouring.

[0010] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows:

[0011] According to a first aspect of this application, a belt conveyor for pouring concrete for dam face panels is provided, comprising:

[0012] A set of support devices includes a first support component arranged at the bottom of the dam and a second support component arranged at the top of the dam; the first support component and the second support component can move synchronously in the X direction under the guidance of a corresponding first guide mechanism;

[0013] The fabric conveyor belt has a first end mounted on a first support assembly and a second end mounted on a second support assembly, and the unloading section of the fabric conveyor belt can move along the Y direction;

[0014] The material transfer belt conveyor is fixedly installed on the first support assembly. Its inlet end is connected to the discharge port of the concrete equipment, and its outlet end is located above the belt of the material placing belt conveyor.

[0015] The conveyor pipe is fixed relative to the unloading section of the fabric conveyor belt, and the feed end is connected to the unloading section of the fabric conveyor belt.

[0016] Wherein, the X direction is the dam axis direction, and the Y direction is the length direction of the working part of the conveyor belt perpendicular to the X direction.

[0017] In some embodiments, the fabric conveyor belt includes a support truss, a belt, a drive roller, a discharge roller, and a first drive mechanism connected to the discharge roller. The drive roller and the discharge roller are rotatably mounted on the support truss. A first end of the belt is wound around the drive roller, and a second end is wound around the discharge roller. The belt operates under the drive of the drive roller, and the discharge roller can move along the Y direction under the drive of the first drive mechanism to realize the change of the length of the working part of the fabric conveyor belt.

[0018] In some embodiments, the fabric conveyor belt includes a fixed section conveyor belt and a telescopic section conveyor belt; wherein...

[0019] The fixed section of the belt conveyor is equipped with a belt storage bin, which contains a fixed roller group, a movable roller group, and a second drive mechanism connected to the movable roller group. In the fixed section of the belt conveyor, the belt is cross-wound around the fixed roller group and the movable roller group on the inner side, and under the drive of the second drive mechanism, the movable roller group can move closer to or away from the fixed roller group to realize the release or retraction of the belt.

[0020] The telescopic belt conveyor is equipped with a telescopic support roller assembly connected to the first drive mechanism to support belt operation and material transportation.

[0021] Furthermore, in some embodiments, the retractable support roller assembly includes a retractable section conveyor roller support frame, a retractable connecting frame, and a retractable section conveyor roller. The retractable section conveyor roller support frame is connected to the first drive mechanism and can move along the Y direction. The retractable section conveyor roller is installed on the retractable section conveyor roller support frame. The retractable connecting frame adopts a scissor structure and is slidably connected to the retractable section conveyor roller support frame. When the retractable section conveyor roller support frame moves retractably along the Y direction under the guidance of the second guide mechanism, it drives the retractable section conveyor roller to move together.

[0022] Furthermore, in some embodiments, a tensioning device for adjusting the belt tension is wound around the inner side of the belt. The tensioning device includes multiple tensioning rollers, which are installed on the support truss and distributed on both sides of the belt storage bin along the belt running direction.

[0023] Furthermore, in some embodiments, the fixed section conveyor belt area is also provided with fixed section conveyor belt idlers, which are installed on the support truss to support the operation of the belt and the transportation of materials.

[0024] Furthermore, in some embodiments, the second guide mechanism is arranged along the Y direction, and both the first drive mechanism and the second drive mechanism are slidably connected to the second guide mechanism.

[0025] In some embodiments, the second guide mechanism is a slide rail.

[0026] Furthermore, in some embodiments, both the first support component and the second support component include a walking mechanism and a frame, with the bottom of the walking mechanism being guided and connected to the first guide mechanism, and the frame being mounted on the upper part of the walking mechanism.

[0027] In some embodiments, the first guiding mechanism is a track.

[0028] In some embodiments, the belt conveyor for pouring concrete for dam face panels further includes:

[0029] Speed ​​sensors are used to monitor the belt speed of the fabric conveyor; and / or,

[0030] The stroke sensor is used to monitor the stroke position of the first drive mechanism and the second drive mechanism to control the telescopic section belt conveyor's telescopic distance and the moving roller group's moving distance.

[0031] According to a second aspect of this application, a concrete pouring device is provided, including the belt conveyor device described above for pouring concrete for dam face panels.

[0032] Beneficial Effects: This application provides a belt conveyor and concrete pouring equipment for dam panel concrete pouring, achieving full coverage of the dam panel within the placement range and enabling rapid, continuous, and uniform concrete pouring. It offers the following advantages: Through the telescopic movement of the telescopic belt conveyor, the placing belt conveyor can achieve concrete pouring parallel to the longitudinal direction (Y direction) of the dam panel; by moving the support device, the placing belt conveyor can move laterally along the dam axis (X direction), enabling transverse concrete pouring; the belt conveyor solves the problems of uneven concrete placement and slow speed; the concrete is transported from bottom to top via the belt, reducing the risk of aggregate accumulation and cement paste separation. The belt conveyor achieves rapid, continuous, and uniform concrete placement with high conveying efficiency, significantly reducing concrete placement time and shortening the construction cycle. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a belt conveyor for pouring concrete for a dam face, according to an embodiment of this application.

[0034] Figure 2 This is a schematic diagram of the fabric conveyor belt in its retracted state in an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the fabric conveyor belt in its extended state in an embodiment of this application;

[0036] Figure 4 This is a top view of the fabric conveyor belt in its extended state in the embodiment of the application;

[0037] Figure 5 This is a schematic diagram of the electronic control system in an embodiment of this application;

[0038] Reference numerals: 1. Support device; 2. Transfer conveyor belt; 3. Fabric conveyor belt; 4. Belt storage bin; 5. Conveying pipe; 6. Track; 11. Traveling mechanism; 12. Frame; 31. Support truss; 32. Fixed section conveyor belt; 33. Telescopic section conveyor belt; 34. Drive roller; 35. Belt; 36. Tensioning roller; 37. Unloading roller; 38. First drive mechanism; 311. Slide rail; 321. Fixed section conveyor belt idler; 331. Telescopic section conveyor belt idler support frame; 332. Telescopic connecting frame; 333. Telescopic section conveyor belt idler; 41. Fixed roller group; 42. Moving roller group; 43. Second drive mechanism. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0040] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. 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. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0041] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between components in a specific orientation. If the specific orientation changes, the directional indication will also change accordingly. These terms are used only for the convenience of describing this application and for simplifying the description, and are not intended to 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 application.

[0042] Furthermore, the terms "first," "second," etc., 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. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] The following problems exist in the related technologies: While using chutes to pour concrete for dam panels is the primary method, chutes require on-site assembly and disassembly. For example, Chinese Patent No. 202321074888.4 proposes a concrete transport device for chutes with different sizes on a dam slope. Although it uses snap rings to connect adjacent chutes, which is faster and easier to disassemble than traditional welding, a series of problems still exist: backflow or vortices easily form at the bottom corners of the chutes, leading to aggregate accumulation and slurry-aggregate separation (segregation); the movement range at the end of the chutes is small, limiting the lateral material distribution range, resulting in uneven material distribution, and requiring the chutes to be rearranged at intervals; gaps exist between adjacent chutes, making grout leakage easy; and trapezoidal chutes have high frictional resistance and poor adaptability.

[0045] Improvements to the equipment have mitigated issues such as aggregate segregation and uneven concrete distribution to some extent. For example, Chinese Patent No. 202511046619.0 proposes an automated transportation and distribution device and method for rockfill dam face concrete. This method uses a spiral mixing roller within a winch to reduce segregation, setting, and separation during concrete transport; and a distribution belt conveyor ensures uniform distribution. However, because it doesn't abandon the outdated chute method of concrete transport, aggregate segregation is inevitable, and the downward transport of concrete by its own weight results in long transport times and slow construction. Furthermore, this device only addresses the longitudinal distribution of concrete along the face; when the transverse concrete placement changes, the device needs to be reinstalled.

[0046] Chinese Patent No. 202310703043.5 discloses a concrete placement device for concrete-faced rockfill dam panels and its usage method. This device has vertical and horizontal travel tracks and mechanisms, accommodating both longitudinal and lateral transport of the concrete panel, covering the entire concrete panel pouring area. However, because the concrete is stored in a hopper before being transported to the placement location, although this avoids problems such as aggregate segregation and slump loss that easily occur with traditional placement methods like chutes, the concrete pouring is discontinuous, severely affecting the quality of the concrete panel pouring.

[0047] Therefore, this application provides a belt conveyor for dam panel concrete pouring, which can achieve full coverage of the dam panel and rapid, continuous, and uniform concrete pouring: Through the telescopic movement of the telescopic belt conveyor, the concrete placing belt conveyor can achieve concrete pouring parallel to the longitudinal direction of the dam panel; by moving the support device, the concrete placing belt conveyor can move laterally along the dam axis, achieving transverse concrete pouring; the belt conveyor solves the problems of uneven concrete distribution and slow speed; the concrete is transported from bottom to top by the belt, reducing the risk of aggregate accumulation and cement paste separation. The belt conveyor achieves rapid, continuous, and uniform concrete distribution with high conveying efficiency, significantly reducing concrete placement time and shortening the construction cycle.

[0048] Example 1: As Figures 1 to 5 As shown, a belt conveyor for pouring concrete for dam face panels includes:

[0049] A set of support devices 1 includes a first support component arranged at the bottom of the dam and a second support component arranged at the top of the dam; the first support component and the second support component can move synchronously in the X direction under the guidance of a corresponding first guide mechanism;

[0050] The fabric conveyor belt 3 has a first end mounted on a first support assembly and a second end mounted on a second support assembly, and the unloading part of the fabric conveyor belt 3 can move along the Y direction;

[0051] The material transfer belt conveyor 2 is fixedly installed on the first support assembly. Its inlet end is connected to the discharge port of the concrete equipment, and its outlet end is located above the belt of the material distribution belt conveyor 3.

[0052] The conveying pipe 5 is fixed relative to the unloading section of the cloth conveyor belt 3, and the inlet end is connected to the unloading section of the cloth conveyor belt 3, while the outlet end is located above the pouring hopper.

[0053] Wherein, the X direction is the dam axis direction, and the Y direction is the length direction of the working part of the conveyor belt perpendicular to the X direction.

[0054] In some embodiments, both the first support component and the second support component include a walking mechanism 11 and a frame 12. The bottom of the walking mechanism 11 is guided and connected to the first guide mechanism, and the frame 12 is mounted on the upper part of the walking mechanism 11.

[0055] In this embodiment, the first guiding mechanism is track 6, which is arranged along the X direction. In this embodiment, the second guiding mechanism (slide rail 311) is arranged along the Y direction.

[0056] In some embodiments, the delivery pipe 5 is an elephant trunk chute.

[0057] In some embodiments, the fabric conveyor belt 3 includes a support truss 31, a belt 35, a drive roller 34, a discharge roller 37, and a first drive mechanism 38 connected to the discharge roller 37. The drive roller 34 and the discharge roller 37 are rotatably mounted on the support truss 31. The first end of the belt 35 is wound around the drive roller 34, and the second end is wound around the discharge roller 37. The belt 35 operates under the drive of the drive roller 34, and the discharge roller 37 can move along the Y direction under the drive of the first drive mechanism 38 to realize the change of the length of the working part of the fabric conveyor belt 3.

[0058] In some embodiments, the fabric conveyor belt 3 includes a fixed section conveyor belt 32 and a telescopic section conveyor belt 33;

[0059] The fixed section of the belt conveyor 32 is provided with a belt storage bin 4. The belt storage bin 4 is provided with a fixed roller group 41, a movable roller group 42, and a second drive mechanism 43 connected to the movable roller group 42. In the fixed section of the belt conveyor 32, the belt 35 is cross-wound around the fixed roller group 41 and the movable roller group 42 on its inner side. Under the drive of the second drive mechanism 43, the movable roller group 42 can move closer to or away from the fixed roller group 41 to realize the release or retraction of the belt.

[0060] The telescopic belt conveyor 33 is equipped with a telescopic support roller assembly connected to the first drive mechanism 38, which is used to support the belt operation and material transportation.

[0061] Furthermore, in this embodiment, the retractable support roller assembly includes a retractable section conveyor roller support frame 331, a retractable connecting frame 332, and a retractable section conveyor roller 333. The retractable section conveyor roller support frame 331 is connected to the first drive mechanism 38 and can move along the Y direction. The retractable section conveyor roller 333 is installed on the retractable section conveyor roller support frame 331. The retractable connecting frame 332 adopts a scissor structure and is slidably connected to the retractable section conveyor roller support frame 331. When the retractable section conveyor roller support frame 331 moves retractably along the Y direction under the guidance of the second guide mechanism, it drives the retractable section conveyor roller 333 to move together.

[0062] The belt 35 is wound with a tensioning device for adjusting the belt tension. In this embodiment, the tensioning device includes multiple tensioning rollers 36, which are installed on the support truss 31 and distributed on both sides of the belt storage bin 4 along the belt 35 running direction.

[0063] The fixed section belt conveyor 32 area is also provided with a fixed section belt conveyor idler 321, which is installed on the support truss 31 to support the belt operation and material transportation.

[0064] In this embodiment, the second guide mechanism is arranged along the Y direction, and the first drive mechanism 38 and the second drive mechanism 43 are both slidably connected to the second guide mechanism.

[0065] In some embodiments, the second guide mechanism is a slide rail 311.

[0066] In some embodiments, the belt conveyor for pouring concrete for dam face panels further includes:

[0067] Speed ​​sensors are used to monitor the belt speed of the fabric conveyor; and / or,

[0068] The stroke sensor is used to monitor the stroke position of the first drive mechanism and the second drive mechanism to control the telescopic section belt conveyor's telescopic distance and the moving roller group's moving distance.

[0069] In some embodiments, the support device 1 is a fixed support frame, the first drive mechanism 38 is a traveling trolley, and the second drive mechanism 43 is a mobile trolley.

[0070] For example, such as Figure 1 As shown, this application provides a belt conveyor for pouring concrete for dam face, including a support device 1, a material transfer belt conveyor 2, a material placing belt conveyor 3, a storage bin 4, a conveying pipe 5, and a control system. The support device 1 (first support assembly and second support assembly) is arranged parallel to each other at the dam bottom and dam top, respectively. Tracks 6 are also laid at the dam bottom and dam top to guide the directional movement of the support device 1. One end of the material transfer belt conveyor 2 is placed on the ground with wheels at the bottom, and the other end is fixed to the support device 1 at the dam bottom. The movement of the support device 1 drives the material transfer belt conveyor 2. The first end of the material placing belt conveyor 3 is fixed to the support device 1 at the dam bottom, and the second end is fixed to the support device 1 at the dam top. The first end of the material placing belt conveyor 3 should be lower than the material transfer belt conveyor 2. Concrete is unloaded from a concrete mixer truck onto the material transfer belt conveyor 2, and then sequentially passes through the material transfer belt conveyor 2, the material placing belt conveyor 3, and the conveying pipe 5 to enter the pouring position. The following is a detailed description of the belt conveyor equipment design:

[0071] Both the first support assembly and the second support assembly include a traveling mechanism 11 and a frame 12. The traveling mechanism 11 is driven by a motor, with the frame 12 fixed at the top and a track 6 at the bottom that provides directional movement. The track 6 is laid along the dam axis.

[0072] The first and second support components are arranged in parallel at the bottom and top of the dam, respectively. The support devices are used to fix the material transfer conveyor 2 and the material placing conveyor 3. The support device at the bottom of the dam fixes one end of the material transfer conveyor 2 and the material placing conveyor 3, and the material transfer conveyor 2 is higher than the material placing conveyor 3. The support device at the top of the dam fixes the other end of the material placing conveyor 2. The support devices at the bottom and top of the dam should move in the same direction, synchronously, and at the same speed, driving the material placing conveyor 2 to move along the axial direction (X direction) parallel to the dam panel.

[0073] like Figures 2 to 4 As shown, the fabric conveyor belt 3 includes a support truss 31, a fixed section conveyor belt 32, a telescopic section conveyor belt 33, a drive roller 34, a belt 35, a tension roller 36, a discharge roller 37, and a first drive mechanism 38.

[0074] The supporting truss 31 is the main load-bearing structure of the fabric conveyor belt, used to support other components of the fabric conveyor belt, and to provide rigid support for the drive roller 34, tension roller 36, and slide rail 311.

[0075] The telescopic belt conveyor 33 includes a telescopic belt conveyor idler support frame 331, a telescopic connecting frame 332, and telescopic belt conveyor idlers 333. The bottom of the telescopic belt conveyor idler support frame 331 is equipped with pulleys slidably connected to a slide rail 311, allowing it to move along the slide rail 311. The telescopic belt conveyor idlers 333 are fixed on the telescopic belt conveyor idler support frame 331. The telescopic connecting frame 332 adopts a scissor structure and is slidably connected to the telescopic belt conveyor idler support frame 331. When the telescopic belt conveyor idler support frame 331 telescopically moves along the slide rail 311, it drives the telescopic belt conveyor idlers 333 to move together.

[0076] In this embodiment, the working part of the fabric conveyor belt refers to the outer belt located between the drive roller 34 and the unloading roller 37.

[0077] The first drive mechanism 38 is fixedly connected to the end of the telescopic belt conveyor 33, and its upper end is fixedly supported by the unloading roller 37. The first drive mechanism 38 is driven by a motor and can travel along the slide rail 311. When the first drive mechanism 38 moves, it drives the unloading roller 37 to move and the telescopic belt conveyor 33 to telescopically move.

[0078] The drive roller 34 is mounted on the support truss 31 and is located at the front end of the fabric conveyor belt 3. It is driven by a motor and the belt rotates forward or backward through the friction between the belt and the drive roller 34.

[0079] The fixed section belt conveyor roller 321 is installed on the support truss 31 to support the belt operation and material transportation.

[0080] The tensioning rollers 36 are mounted on the support truss 31 and distributed on both sides of the belt storage bin 4 along the belt running direction, and are used to adjust the tension of the belt.

[0081] like Figure 2 , Figure 3 As shown, the storage bin 4 is arranged in the area of ​​the fixed section of the belt conveyor 32, and includes a fixed roller group 41, a movable roller group 42, and a second drive mechanism 43 connected to the movable roller group 42. The second drive mechanism 43 is driven by a motor and can drive the movable roller group 42 to move closer to or away from the fixed roller group 41.

[0082] The belt is released when the moving roller group approaches the fixed roller group and retracted when it moves away from the fixed roller group.

[0083] like Figure 5 As shown, the control system is connected to speed sensors, stroke sensors, motors, and drive components. By controlling the motor's operation, the control system can control the movement of the traveling mechanism, drive rollers, first drive mechanism, and second drive mechanism, enabling the belt conveyor to move along the dam axis, the belt to rotate, and the fabric conveyor to move along the supporting truss. The speed sensor signal controls the belt speed. The stroke sensor signals located in the first and second drive mechanisms control the telescopic section's telescopic distance and the moving roller assembly's distance, preventing the belt from being released or retracted too much or too little.

[0084] Example 2: Figure 1 As shown, a concrete pouring device includes the aforementioned belt conveyor for pouring concrete for dam face panels.

[0085] The technical means disclosed in this application are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. This application has been disclosed above with reference to preferred embodiments, but it is not intended to limit this application. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A belt conveyor for pouring concrete for dam face panels, characterized in that, include: A set of support devices includes a first support assembly arranged at the bottom of the dam and a second support assembly arranged at the top of the dam; The first support component and the second support component can move synchronously in the X direction under the guidance of the corresponding first guide mechanism; The fabric conveyor belt has a first end mounted on a first support assembly and a second end mounted on a second support assembly, and the unloading section of the fabric conveyor belt can move along the Y direction; The material transfer belt conveyor is fixedly installed on the first support assembly. Its inlet end is connected to the discharge port of the concrete equipment, and its outlet end is located above the belt of the material placing belt conveyor. The conveyor pipe is fixed relative to the unloading section of the fabric conveyor belt, and the feed end is connected to the unloading section of the fabric conveyor belt. Wherein, the X direction is the dam axis direction, and the Y direction is the length direction of the working part of the conveyor belt perpendicular to the X direction.

2. The belt conveyor equipment for pouring concrete for dam face panels according to claim 1, characterized in that, The fabric conveyor belt includes a support truss, a belt, a drive roller, a discharge roller, and a first drive mechanism connected to the discharge roller. The drive roller and the discharge roller are rotatably mounted on the support truss. The first end of the belt is wound around the drive roller, and the second end is wound around the discharge roller. The belt runs under the drive of the drive roller, and the discharge roller can move along the Y direction under the drive of the first drive mechanism to realize the change of the length of the working part of the fabric conveyor belt.

3. The belt conveyor equipment for pouring concrete for dam face panels according to claim 2, characterized in that, The fabric conveyor belt includes a fixed section conveyor belt and a telescopic section conveyor belt; wherein... The fixed section of the belt conveyor is equipped with a belt storage bin, which contains a fixed roller group, a movable roller group, and a second drive mechanism connected to the movable roller group. In the fixed section of the belt conveyor, the belt is cross-wound around the fixed roller group and the movable roller group on the inner side, and under the drive of the second drive mechanism, the movable roller group can move closer to or away from the fixed roller group to realize the release or retraction of the belt. The telescopic belt conveyor is equipped with a telescopic support roller assembly connected to the first drive mechanism to support belt operation and material transportation.

4. The belt conveyor equipment for pouring concrete for dam face panels according to claim 3, characterized in that, The retractable support roller assembly includes a retractable section conveyor roller support frame, a retractable connecting frame, and a retractable section conveyor roller. The retractable section conveyor roller support frame is connected to the first drive mechanism and can move along the Y direction. The retractable section conveyor roller is installed on the retractable section conveyor roller support frame. The retractable connecting frame adopts a scissor structure and is slidably connected to the retractable section conveyor roller support frame. When the retractable section conveyor roller support frame moves retractably along the Y direction under the guidance of the second guide mechanism, it drives the retractable section conveyor roller to move together.

5. The belt conveyor equipment for pouring concrete for dam face panels according to claim 3, characterized in that, The belt is wound around its inner side with a tensioning device for adjusting the belt tension. The tensioning device includes multiple tensioning rollers, which are installed on the support truss and distributed on both sides of the belt storage bin along the belt running direction.

6. The belt conveyor equipment for pouring concrete for dam face panels according to claim 3, characterized in that, The fixed section of the belt conveyor area is also equipped with fixed section belt conveyor idlers, which are installed on the support truss to support the belt operation and material transportation.

7. The belt conveyor equipment for pouring concrete for dam face panels according to claim 4, characterized in that, The second guide mechanism is arranged along the Y direction, and both the first drive mechanism and the second drive mechanism are slidably connected to the second guide mechanism.

8. The belt conveyor equipment for pouring concrete for dam face panels according to claim 1, characterized in that, Both the first support assembly and the second support assembly include a walking mechanism and a frame. The bottom of the walking mechanism is guided and connected to the first guide mechanism, and the frame is installed on the upper part of the walking mechanism.

9. The belt conveyor equipment for pouring concrete for dam face panels according to claim 3, characterized in that, Also includes: Speed ​​sensor, used to monitor the belt speed of the fabric conveyor belt; And / or, The stroke sensor is used to monitor the stroke position of the first drive mechanism and the second drive mechanism to control the telescopic section belt conveyor's telescopic distance and the moving roller group's moving distance.

10. A concrete pouring device, characterized in that, Includes the belt conveyor equipment for pouring concrete for dam face panels as described in any one of claims 1 to 9.

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