A dual-shaft uniform feeding dry-hard concrete placing boom

Abstract

This invention discloses a dual-shaft uniform feeding dry-hard concrete placing boom, belonging to the technical field of placing booms. It includes: a hopper with multiple openings at its bottom; a feeding assembly comprising a first reducer and a double star wheel structure, the double star wheel structure being disposed within the hopper, the first reducer being disposed on the side of the hopper with its output shaft passing through the hopper and connected to the double star wheel structure; and a gate assembly, the number of which is the same as the number of openings, comprising a drive unit and an opening / closing gate structure, the drive unit being connected to the opening / closing gate structure, driving the opening / closing gate structure to move and disengage from or cover the openings. The output shaft of the first reducer drives a synchronous gear to rotate, thereby causing the double star wheels to mesh and feed, resulting in more uniform feeding and significantly improved feeding efficiency. Each discharge opening at the bottom of the hopper is equipped with an opening / closing gate structure, and each is controlled by an independent opening cylinder. This results in a simple, low-cost, and easily maintainable gate assembly structure.

Description

Technical Field

[0001] This invention belongs to the field of concrete placing machine technology, specifically relating to a dual-shaft uniform feeding dry-hard concrete placing machine. Background Technology

[0002] Traditional concrete placing booms use either single-shaft or screw-type feeding methods. These two structures are similar in structure and operate on the same principle, employing an extrusion feeding method. This causes concrete to stick to the side wall of the hopper, making it difficult to clean. Over time, this leads to concrete accumulation and long-term wear and tear on the hopper wall, reducing its service life.

[0003] In addition, existing hoppers often use a mechanical door opening structure when feeding materials, which is relatively complex in structure and difficult to clean after being covered with concrete. Summary of the Invention

[0004] This invention addresses the aforementioned problems in existing technologies by proposing a dual-shaft uniform feeding dry-hard concrete placing machine that provides uniform material distribution, improved material distribution efficiency, and stable door opening.

[0005] This invention can be achieved through the following technical solutions:

[0006] A dual-shaft uniform feeding dry-hard concrete placing boom includes:

[0007] The hopper has multiple openings at its bottom;

[0008] The feeding assembly includes a first reducer and a double star wheel structure. The double star wheel structure is disposed inside the hopper. The first reducer is disposed on the side of the hopper and its output shaft passes through the hopper and is connected to the double star wheel structure.

[0009] The number of door opening components is the same as the number of openings. The door opening components include a drive unit and an opening and closing door structure. The drive unit is connected to the opening and closing door structure and drives the opening and closing door structure to move and disengage from or cover the openings.

[0010] As a further improvement of the present invention, the double star wheel structure consists of two star wheel shafts and star wheels disposed on the star wheel shafts, with a compression area formed between the two star wheels.

[0011] As a further improvement of the present invention, both ends of the two star wheel shafts are provided with synchronous gears, the two synchronous gears mesh with each other, and the output shaft of the first reducer is connected to one of the synchronous gears.

[0012] As a further improvement of the present invention, the two star wheels rotate synchronously in the direction of the extrusion area, and the opening and closing door structure is located directly below the extrusion area.

[0013] As a further improvement of the present invention, the driving unit is configured as a door opening cylinder, the door opening cylinder is connected to the side wall of the hopper through a first connecting plate, and the output shaft of the door opening cylinder is connected to the door opening and closing structure.

[0014] As a further improvement of the present invention, the opening and closing door structure includes:

[0015] A guide bracket is provided at the bottom of the hopper, and a guide bracket is provided on both sides of any one of the openings. The guide bracket is provided with a guide groove.

[0016] A door panel that movably covers the opening, the door panel being provided with a connector, the door panel being connected to the output shaft of the door opening cylinder via the connector;

[0017] Guide side plates are provided on both sides of the door panel and close to the guide bracket. The guide side plates are provided with guide rods, which are movably disposed in the guide grooves.

[0018] As a further improvement of the present invention, the hopper also has a stirring assembly, the stirring assembly comprising:

[0019] A through shaft, which passes through the hopper;

[0020] An agitator impeller is connected to the through shaft to form an agitator structure, which is located above the star wheel shaft.

[0021] The second reducer is located on the side of the hopper and is connected to the through shaft.

[0022] As a further improvement of the present invention, it also includes a fabric placing machine frame and a lifting assembly, wherein the hopper is located within the orthographic projection range of the fabric placing machine frame, and the fabric placing machine frame and the hopper are connected by the lifting assembly.

[0023] As a further improvement of the present invention, the lifting assembly includes:

[0024] A second connecting plate is installed on the side of the hopper;

[0025] The lifting cylinder has its fixed end connected to the fabric laying machine frame, and its output shaft is connected to the second connecting plate.

[0026] As a further improvement of the invention, a screen is also included, which is disposed inside the hopper, the screen being located on top of the stirring impeller and close to the top surface of the hopper.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The output shaft of the first reducer drives the synchronous gear to rotate, thereby enabling the double star wheels to mesh and feed, resulting in more uniform feeding and significantly improving feeding efficiency.

[0029] 2. An extrusion zone is formed between the two star wheels. When concrete is poured into the hopper, it falls into this extrusion zone. As the two star wheels rotate, the concrete in the extrusion zone is mixed more evenly, which greatly improves the feeding efficiency.

[0030] 3. The two star wheels rotate synchronously in the direction of the extrusion area, so that the concrete between the star wheels and the inner wall of the hopper is brought into the extrusion area. Then it passes between the two star wheels and falls into the opening and closing gate structure to wait for feeding. This improves the extrusion effect on the concrete in the entire hopper, making the feeding more uniform, and also reduces the wear on the inner wall of the hopper, extending the service life of the hopper.

[0031] 4. Each discharge opening at the bottom of the hopper is equipped with an opening and closing gate structure, and each is controlled by an independent opening cylinder. The resulting opening assembly structure is simple, low-cost and easy to maintain.

[0032] 5. When the output shaft of the door opening cylinder extends or retracts, it drives the door panel through the connecting parts. Then, the door panel moves back and forth along the guide groove through the guide rod, thereby completing the opening and closing action of the door panel. The overall structure is simple and practical, not easy to wear and damage. In addition, during each opening and closing process of the door panel, most of the concrete adhering to the door panel will be peeled off, which is convenient for subsequent cleaning.

[0033] 6. The hopper has a lifting function, which can solve the impact of the material placement height on the pouring and compaction, and ensure the quality of construction process and concrete cost. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the dual-shaft uniform feeding dry-hard concrete placing machine of the present invention;

[0035] Figure 2 This is the invention Figure 1 A schematic diagram of the bottom surface;

[0036] Figure 3 This is a schematic diagram of the structure of the feeding assembly and the stirring assembly of the present invention;

[0037] Figure 4 This is a cross-sectional view of the biaxial uniform feeding dry-hard concrete placing machine of the present invention.

[0038] In the diagram, 100 is the hopper; 110 is the fabric feeder frame; 111 is the wheel; 120 is the screen; 200 is the feeding assembly; 210 is the first reducer; 220 is the star wheel shaft; 230 is the star wheel; 231 is the extrusion zone; 240 is the synchronous gear; 300 is the door opening assembly; 310 is the door opening cylinder; 320 is the guide bracket; 321 is the guide chute; 330 is the door panel; 340 is the connector; 350 is the guide side plate; 351 is the guide rod; 400 is the mixing assembly; 410 is the through shaft; 420 is the mixing impeller; 430 is the second reducer; 500 is the lifting assembly; 510 is the second connecting plate; and 520 is the lifting cylinder. Detailed Implementation

[0039] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical methods of the present invention. However, the present invention is not limited to these embodiments.

[0040] like Figure 1-4 As shown, the present invention provides a biaxial uniform feeding dry-hard concrete placing boom, comprising:

[0041] The hopper 100 has multiple openings at its bottom, through which concrete flows downward during the placement process.

[0042] The feeding assembly 200 includes a first reducer 210 and a double star wheel structure. The double star wheel structure is disposed inside the hopper 100. The first reducer 210 is disposed on the side of the hopper 100 and its output shaft passes through the hopper 100 and is connected to the double star wheel structure. The double star wheel structure feeds material through meshing, which results in more uniform feeding compared to single-shaft or screw-type feeding, and improves the feeding efficiency of the feeding machine.

[0043] The number of door opening components 300 is the same as the number of openings. Each door opening component 300 includes a drive unit and an opening and closing door structure. The drive unit is connected to the opening and closing door structure and can control the opening and closing door structure to cover or detach from the opening. That is to say, in this embodiment, each opening at the bottom of the hopper 100 is provided with an independent door opening component 300. The door opening component 300 drives the opening and closing door structure to move through the drive unit, thereby realizing the opening and closing of the hopper 100 door. The structure is simple and more practical.

[0044] Preferably, the dual star wheel structure consists of two star wheel shafts 220 and star wheels 230 disposed on the star wheel shafts 220, and a compression zone 231 is formed between the two star wheels 230. When concrete is poured into the hopper 100, the concrete will fall into the compression zone 231. At this time, as the two star wheels 230 rotate, the concrete in the compression zone 231 can be mixed more evenly, thereby making the feeding more uniform and greatly improving the feeding efficiency.

[0045] In a further preferred embodiment, both star wheel shafts 220 are equipped with synchronous gears 240, and the two synchronous gears 240 on the same side mesh with each other. The output shaft of the first reducer 210 is connected to one of the synchronous gears 240. Thus, when the first reducer 210 starts to operate, the double star wheel structure can be meshed and fed through the synchronous gears 240. In other words, the two star wheels 230 rotate synchronously.

[0046] In a further preferred embodiment, both star wheels 230 rotate synchronously in the direction of the extrusion area 231, and the opening and closing gate structure is located directly below the extrusion area 231. It is worth mentioning that, since the gap between the two star wheels 230 and the inner wall of the hopper 100 is small, during the rotation of the two star wheels 230, some of the concrete that originally fell between the star wheels 230 and the inner wall of the hopper 100 can be driven upward and rotated into the extrusion area 231. In other words, the concrete poured into the hopper 100 is ultimately extruded in the extrusion area 231 and then vertically discharged downward to the opening and closing gate structure to wait for the opening and closing gate structure to open and feed the concrete.

[0047] In contrast, existing technologies often employ a single star wheel structure. To ensure uniform feeding, the gaps between the two sides of this single star wheel structure and the inner wall of the hopper 100 are relatively small. However, this single star wheel structure causes the concrete on one side to be rotated and transported to the other side during its rotation. The concrete is ultimately squeezed through the gap between the single star wheel structure and the hopper 100 as the single star wheel structure rotates, and finally falls into the opening and closing door structure below the single star wheel structure. During this process, the concrete accumulates on the squeezing side of the single star wheel structure and the hopper 100, and continuously wears down the inner wall of the hopper 100 on that side, reducing the service life of the hopper 100.

[0048] In this embodiment, due to the double star wheel structure, the concrete between the star wheel 230 and the inner wall of the hopper 100 is brought into the extrusion zone 231, thereby improving the extrusion effect on the concrete in the entire hopper 100 so that the feeding is more uniform, and also reducing the wear on the inner wall of the hopper 100 and extending the service life of the hopper 100.

[0049] Preferably, the drive unit is configured as a door opening cylinder 310, which is connected to the side wall of the hopper 100 via a first connecting plate, and the output shaft of the door opening cylinder 310 is connected to the door opening and closing structure.

[0050] Preferably, the opening and closing door structure includes:

[0051] A guide bracket 320 is provided at the bottom of the hopper 100. In this embodiment, guide brackets 320 are provided on both sides of any opening, and guide grooves 321 are provided on the guide brackets 320.

[0052] A door panel 330 is movably covered by the opening. The door panel 330 is provided with a connector 340, and the door panel 330 is connected to the output shaft of the door opening cylinder 310 through the connector 340.

[0053] The guide side plate 350 is disposed on both sides of the door panel 330 and connected to the door panel 330. Thus, when the door panel 330 moves, the guide side plate 350 moves synchronously. The guide side plate 350 is close to the guide bracket 320 and is provided with a guide rod 351. The guide rod 351 is movably disposed in the guide groove 321.

[0054] In other words, when the output shaft of the door opening cylinder 310 extends or retracts, it can drive the door panel 330 through the connector 340. Then, the door panel 330 moves back and forth along the guide groove 321 through the guide rod 351, thereby completing the opening and closing action of the door panel 330. The overall structure is simple and practical. In addition, during each opening and closing process of the door panel 330, most of the concrete adhering to the door panel 330 will be peeled off, which is convenient for subsequent cleaning.

[0055] Preferably, the hopper 100 further includes a stirring assembly 400, which comprises:

[0056] A through shaft 410 is inserted through the hopper 100;

[0057] A stirring impeller 420 is connected to a through shaft 410 to form a stirring structure, which is located above the star wheel shaft 220.

[0058] The second reducer 430 is located on the side of the hopper 100 and connected to the through shaft 410. The second reducer 430 drives the through shaft 410 to rotate, which in turn drives the mixing impeller 420 to rotate, thereby mixing the concrete in the hopper 100, making the concrete more uniform and facilitating feeding by the double star wheel structure.

[0059] Preferably, it also includes a fabric placing machine frame 110 and a lifting assembly 500, with the hopper 100 located within the orthographic projection range of the fabric placing machine frame 110, and the fabric placing machine frame 110 and the hopper 100 connected by the lifting assembly 500.

[0060] Preferably, the lifting assembly 500 includes:

[0061] The second connecting plate 510 is installed on the side of the hopper 100;

[0062] The lifting cylinder 520 has its fixed end connected to the concrete placing machine frame 110. The output shaft of the lifting cylinder 520 is connected to the second connecting plate 510. The lifting cylinder 520 drives the hopper 100 to lift and lower, thereby adjusting the concrete placing height during the concrete placing process. This solves the problem of the concrete placing height affecting the pouring and ensures the quality of the construction process and the cost of concrete.

[0063] Preferably, wheels 111 are provided on both sides of the placing machine frame 110. The movement of the placing machine frame 110 drives the hopper 100 to move. In addition, if it is desired to move the placing machine in another direction, a secondary frame can be installed on the placing machine frame 110, and the hopper 100 can be connected to the secondary frame through the lifting cylinder 520.

[0064] Preferably, it also includes a screen 120, which is disposed inside the hopper 100, and the screen 120 is located on top of the stirring impeller 420 and close to the top surface of the hopper 100.

[0065] The technical means disclosed in this invention are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

[0066] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0067] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A dual-shaft uniform feeding dry-hard concrete placing boom, characterized in that, include: The hopper has multiple openings at its bottom; The feeding assembly includes a first reducer and a double star wheel structure. The double star wheel structure is disposed inside the hopper. The first reducer is disposed on the side of the hopper and its output shaft passes through the hopper and is connected to the double star wheel structure. The dual star wheel structure consists of two star wheel shafts and star wheels mounted on the star wheel shafts, with a compression area formed between the two star wheels; Both ends of the two star wheel shafts are provided with synchronous gears, the two synchronous gears mesh with each other, and the output shaft of the first reducer is connected to one of the synchronous gears; The number of door opening components is the same as the number of openings. The door opening components include a drive unit and an opening and closing door structure. The drive unit is connected to the opening and closing door structure and drives the opening and closing door structure to move and disengage from or cover the openings. The drive unit is configured as a door opening cylinder, which is connected to the side wall of the hopper via a first connecting plate, and the output shaft of the door opening cylinder is connected to the door opening and closing structure. The opening and closing door structure includes: A guide bracket is provided at the bottom of the hopper, and a guide bracket is provided on both sides of any one of the openings. The guide bracket is provided with a guide groove. A door panel that movably covers the opening, the door panel being provided with a connector, the door panel being connected to the output shaft of the door opening cylinder via the connector; Guide side plates are provided on both sides of the door panel and close to the guide bracket. The guide side plates are provided with guide rods, which are movably disposed in the guide grooves.

2. The dual-shaft uniform feeding dry-hard concrete placing machine according to claim 1, characterized in that, The two star wheels rotate synchronously in the direction of the extrusion area, and the opening and closing door structure is located directly below the extrusion area.

3. The dual-shaft uniform feeding dry-hard concrete placing machine according to claim 1, characterized in that, The hopper also includes a stirring assembly, which comprises: A through shaft, which passes through the hopper; An agitator impeller is connected to the through shaft to form an agitator structure, which is located above the star wheel shaft. The second reducer is located on the side of the hopper and is connected to the through shaft.

4. A dual-shaft uniform feeding dry-hard concrete placing machine according to claim 1, characterized in that, It also includes a fabric placing machine frame and a lifting assembly. The hopper is located within the orthographic projection range of the fabric placing machine frame, and the fabric placing machine frame and the hopper are connected by the lifting assembly.

5. A dual-shaft uniform feeding dry-hard concrete placing machine according to claim 4, characterized in that, The lifting assembly includes: A second connecting plate is installed on the side of the hopper; The lifting cylinder has its fixed end connected to the frame of the fabric laying machine, and its output shaft is connected to the second connecting plate.

6. A dual-shaft uniform feeding dry-hard concrete placing machine according to claim 3, characterized in that, It also includes a screen disposed inside the hopper, the screen being located on top of the stirring impeller and close to the top surface of the hopper.

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