Concrete wet spraying platform car for mine

Abstract

This invention belongs to the technical field of wet concrete spraying equipment, specifically relating to a mining wet concrete spraying trolley, including a wet spraying trolley body. A feeding hopper and a feeding device are located at the rear of the trolley body. The feeding device includes several feeding boxes, adjacent feeding boxes are connected by elastic connecting belts, and a rotating support assembly is provided between adjacent feeding boxes. A sealing plate is fixedly connected to the left end of the leftmost feeding box, and a rotating arm is fixedly connected to the sealing plate. An mounting plate is fixedly installed at the upper rear of the wet spraying trolley body, and a motor for driving the rotating arm is installed on the front side of the mounting plate. This invention allows the feeding boxes to be slightly tilted upwards, with the discharge hopper aligned above the feeding hopper. Workers can feed concrete and auxiliary materials from a distance, allowing the concrete to be rolled and mixed within the feeding boxes. This eliminates the need for manual mixing at the concrete mixing plant, saving costs, improving efficiency, and avoiding the harm of dust to the human body.

Description

Technical Field

[0001] This invention belongs to the technical field of wet concrete spraying equipment, specifically relating to a wet concrete spraying trolley for mining. Background Technology

[0002] Currently, wet shotcrete trolleys are widely used in tunnel construction for support shotcreting operations. These trolleys not only have the ability to perform multi-angle, all-round, large-scale, and high-efficiency concrete spraying operations, but also integrate robotic arms, wet shotcrete machines, and walking devices into one unit, reducing the size of the equipment and increasing its reliability. Therefore, they have outstanding advantages such as ease of use, flexibility, and speed in tunnel construction with narrow spaces, making them indispensable equipment for support shotcreting operations in tunnel construction. Traditional wet shotcrete trolleys have systems such as a walking system, a material system, a condensation system, and a spraying system. The walking system moves the entire wet shotcrete machine, the material system transports the sprayed material to the spraying system, and the spraying system, in conjunction with the condensation system, sprays the material out.

[0003] This wet spraying method has high requirements for pumping materials. The concrete mixture must be mixed at a distant concrete batching plant before being transported to the construction site by concrete mixer trucks. Then, the wet spraying machinery on site will fill and spray it. This inevitably leads to high raw material costs, especially high transportation costs. In addition, manual mixing is required when mixing concrete at the batching plant. The mixing process generates a lot of dust, which is harmful to the health of workers. Furthermore, when filling the mixed concrete, the concrete mixer truck and the wet spraying trolley need to be close to each other and dock. Because the terrain inside the tunnel is complex, the concrete mixer truck and the wet spraying trolley are prone to collision when they get close, which can cause safety accidents. Summary of the Invention

[0004] To address the problems in the prior art, the present invention aims to provide a wet spraying trolley for mining concrete.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] A wet concrete spraying trolley for mining includes: a wet spraying trolley body, wherein a feeding hopper and a feeding device are provided at the rear of the wet spraying trolley body.

[0007] The feeding device includes several feeding boxes, each with openings at both ends. Adjacent feeding boxes are connected by elastic connecting straps, and a rotating support assembly is provided between adjacent feeding boxes. A sealing plate is fixedly connected to the left end of the leftmost feeding box, and a rotating arm is fixedly connected to the sealing plate. An mounting plate is fixedly installed at the upper end of the rear of the wet spraying trolley body, and the rotating arm is rotatably connected to the mounting plate. A motor for driving the rotating arm is installed on the front side of the mounting plate. A discharge hopper is provided at the lower end of the leftmost feeding box, and the discharge hopper is located above the feeding hopper. A feeding hopper is provided at the upper end of the rightmost feeding box, and a water spraying device is provided at the upper end of each of the feeding boxes.

[0008] Preferably, the water spraying device includes a water storage plate, and a plurality of nozzles communicating with the inside of the water storage plate are provided at the upper end of the feed box. A water tank is provided on the main body of the wet spraying trolley, and the water tank is connected to the water storage plate through a water pipe.

[0009] Preferably, the rotating support assembly includes a connecting plate, a rotating shaft, and a first electric push rod. Two connecting plates are provided, symmetrically arranged on the front and rear walls of the left feed box. One end of the rotating shaft is fixedly connected to the right feed box, and the other end is rotatably connected to the connecting plate. Each rotating shaft is provided with a first gear. The first electric push rod is fixedly connected to the left feed box, and the output shaft of the first electric push rod is fixedly connected to a first toothed plate, which meshes with the first gear.

[0010] Preferably, a support plate is fixedly provided on the front and rear walls of several of the feeding boxes, a second toothed plate is slidably provided on the support plate, a second electric push rod is provided on the feeding box to drive the second toothed plate to move, several stirring shafts are arranged in parallel inside the feeding box, stirring blades are provided on the stirring shafts, both ends of several stirring shafts penetrate the feeding box, and a second gear is fixedly provided at the penetrating end, and the second gear meshes with the second toothed plate.

[0011] Preferably, a blocking plate is provided at the left end of the interior of each of the feeding boxes, the upper end of the blocking plate penetrates through the feeding box, and a pressure plate is fixedly connected to the penetrating end. A spring is fixed between the pressure plate and the feeding box.

[0012] Preferably, each of the several blocking plates is fixedly provided with a movable rod at its front and rear ends. The movable rod passes through the feed box, and a second wedge block is fixedly connected to its through end. Each of the several second toothed plates is fixedly provided with a first wedge block at its left end. The first wedge block and the second wedge block are used in conjunction.

[0013] Preferably, each of the feed boxes is provided with a side groove for the moving rod to move up and down.

[0014] Compared with the prior art, the present invention has the following technical effects:

[0015] This invention provides a mining concrete wet spraying trolley. When the feeding device is activated for long-distance feeding, a rotating support assembly unfolds several feed boxes into a straight line. The motor drives the rotating arm to rotate, causing the feed boxes to tilt slightly upwards. The discharge hopper is aligned with the top of the feeding hopper. Workers can then feed concrete and auxiliary materials from a distance, allowing the concrete to be rolled and mixed within the feed boxes. This eliminates the need for manual mixing at a concrete mixing plant and long-distance transportation, saving costs, improving efficiency, avoiding the harm of dust to the human body, and avoiding the risk of safety accidents caused by the docking of concrete mixer trucks with the spraying trolley during the long-distance feeding.

[0016] The first electric actuator, first toothed plate, first gear, rotating shaft, and connecting plate work together to bend two adjacent feed boxes. First, the leftmost feed box can be bent downwards, while the other feed box bends upwards, making the feed hopper lower and easier for workers to feed materials. Second, different feed boxes can be bent at different angles to ensure that concrete and auxiliary materials maintain different feeding speeds when falling, improving the mixing effect. Finally, each feed box of the feeding device can be bent to reduce its storage space, improve space utilization, and facilitate the movement of the trolley during spraying.

[0017] By cooperating with the first electric push rod, the first toothed plate, the first gear, the rotating shaft, the connecting plate, the first wedge block, the second wedge block, the moving rod, the side groove, the blocking plate, the pressure plate, and the spring, the material feeding can be controlled at any time, and the time of concrete in the feeding box is increased, thereby improving the mixing effect of the mixing blade on the concrete.

[0018] Other features and advantages of the present invention will be described in detail in the following specific embodiments. Attached Figure Description

[0019] Figure 1 The diagram shows an outer view of the wet spraying trolley body during material feeding according to a specific embodiment of the present invention.

[0020] Figure 2 A schematic diagram of the outer side of a wet spraying trolley provided according to a specific embodiment of the present invention is shown;

[0021] Figure 3 The diagram shown is an enlarged front view of a portion of the structure of the feeding device according to a specific embodiment of the present invention.

[0022] Figure 4 The diagram shows a top view of a portion of the structure of a wet spraying trolley feeding device according to a specific embodiment of the present invention.

[0023] Figure 5 The diagram shows a side view of the installation position of the blocking plate according to a specific embodiment of the present invention;

[0024] Figure 6 Shown as Figure 3 An enlarged view of position A in the middle;

[0025] The following are the labels in the diagram: 1. Main body of the wet spraying trolley; 2. Feed hopper; 3. Feed box; 4. Feed hopper; 5. Discharge hopper; 6. Elastic connecting belt; 7. Sealing plate; 701. Rotating arm; 8. Mounting plate; 9. Motor; 10. Connecting plate; 11. Rotating shaft; 12. First gear; 13. First electric push rod; 14. First toothed plate; 15. Second electric push rod; 16. Second toothed plate; 1601. Support plate; 17. Second gear; 18. Stirring shaft; 19. Stirring blade; 20. First wedge block; 21. Second wedge block; 22. Moving rod; 23. Side groove; 24. Blocking plate; 25. Pressure plate; 26. Spring; 27. Water storage plate; 28. Nozzle; 29. ​​Water pipe; 30. Water tank. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further explained below with reference to the specific accompanying drawings.

[0027] It should be noted that, in this invention, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Example 1:

[0030] Please see Figure 1-2 As shown, this embodiment provides a wet spraying trolley for mining concrete, including: a wet spraying trolley body 1, and a feeding hopper 2 and a feeding device are provided at the rear of the wet spraying trolley body 1.

[0031] The feeding device includes several feeding boxes 3, each with openings at both ends. Adjacent feeding boxes 3 are connected by elastic connecting straps 6. A rotating support assembly is provided between adjacent feeding boxes 3. A sealing plate 7 is fixedly connected to the left end of the leftmost feeding box 3, and a rotating arm 701 is fixedly connected to the sealing plate 7. An mounting plate 8 is fixedly installed at the upper end of the rear of the wet spraying trolley body 1. The rotating arm 701 is rotatably connected to the mounting plate 8. A motor 9 for driving the rotating arm 701 is installed on the front side of the mounting plate 8. A discharge hopper 5 is provided at the lower end of the leftmost feeding box 3, which is located above the feeding hopper 2. A feeding hopper 4 is provided at the upper end of the rightmost feeding box 3. A water spraying device is provided at the upper end of each of the feeding boxes 3.

[0032] Specifically, when using a wet spraying trolley to spray concrete, the trolley is driven to the tunnel construction site. All systems of the trolley body 1 are activated. During long-distance material feeding, the rotating support assembly unfolds several feed boxes 3 into a straight line. The motor 9 drives the rotating arm 701 to rotate, causing the feed boxes 3 to tilt slightly upwards. The discharge hopper 5 is aligned above the feeding hopper 2. Workers can then feed concrete and auxiliary materials from a distance. The water spraying device sprays water during concrete feeding, causing the concrete to roll and mix within the feed boxes 3. This eliminates the need for manual mixing at the concrete mixing plant and long-distance transport, saving costs and improving efficiency. Furthermore, the automatic long-distance mixing eliminates the need for manual mixing, avoiding the harm of dust to the human body. The long-distance feeding also avoids the risk of safety accidents caused by the docking of concrete mixer trucks with the spraying trolley.

[0033] Example 2:

[0034] Please see Figure 1-3 As shown, based on Embodiment 1, the water spraying device includes a water storage plate 27, and a plurality of nozzles 28 communicating with the inside of the water storage plate 27 are provided at the upper end of the feed box 3. A water tank 30 is provided on the wet spraying trolley body 1, and the water tank 30 is connected to the water storage plate 27 through a water pipe 29.

[0035] Specifically, through the cooperation of water tank 30, water pipe 29, water storage plate 27, nozzle 28 and feed box 3, water is sprayed during the process of concrete and auxiliary materials being fed, which assists in the mixing of concrete during the feeding process and results in a good mixing effect. In addition, each feed box 3 is equipped with a nozzle 28 at the top, which sprays water all the way during the process of concrete and auxiliary materials being fed, further improving the mixing effect.

[0036] Example 3:

[0037] Please see Figure 3-4As shown, based on Embodiment 1, the rotating support assembly includes a connecting plate 10, a rotating shaft 11, and a first electric push rod 13. Two connecting plates 10 are provided, symmetrically arranged on the front and rear walls of the left feed box 3. One end of the rotating shaft 11 is fixedly connected to the right feed box 3, and the other end is rotatably connected to the connecting plate 10. Each rotating shaft 11 is provided with a first gear 12. The first electric push rod 13 is fixedly connected to the left connecting box. The output shaft of the first electric push rod 13 is fixedly connected to a first toothed plate 14, and the first toothed plate 14 meshes with the first gear 12.

[0038] Specifically, the first electric actuator 13 is activated, which drives the first toothed plate 14 to move. The first toothed plate 14 meshes with the first gear 12, which drives the rotating shaft 11 to rotate, causing the two adjacent feed boxes 3 to bend. First, the leftmost feed box 3 can be controlled to bend downwards, while the other feed box 3 bends upwards, so that the feed hopper 4 can be lowered, making it easier for workers to feed materials. Second, different feed boxes 3 can be controlled to bend at different angles, so that concrete and auxiliary materials can maintain different feeding speeds when falling, improving the mixing effect. Finally, after the wet spraying trolley finishes spraying, each feed box 3 of the feeding device can be bent to reduce its storage space, improve space utilization, and facilitate the movement of the trolley during spraying, avoiding the feeding device being too long and prone to collision.

[0039] Example 4:

[0040] Please see Figure 3-6 As shown, based on embodiment 3, a number of the feeding boxes 3 are provided with support plates 1601 on their front and rear walls. A second toothed plate 16 is slidably arranged on the support plate 1601. A second electric push rod 15 is provided on the feeding box 3 to drive the second toothed plate 16 to move. A number of stirring shafts 18 are arranged in parallel inside the feeding box 3. Stirring blades 19 are provided on the stirring shafts 18. Both ends of the stirring shafts 18 penetrate the feeding box 3, and a second gear 17 is fixed at the penetrating end. The second gear 17 meshes with the second toothed plate 16.

[0041] Through the cooperation of the support plate 1601, the second electric actuator 15, the second gear 17, the mixing shaft 18, and the mixing blade 19, the second electric actuator 15 is activated to extend and retract, causing the second toothed plate 16 to move back and forth. The second toothed plate 16 meshes with several second gears 17, causing the mixing shaft 18 to rotate and drive the mixing blade 19 to rotate, thus mixing the fed concrete and auxiliary materials and further improving the mixing effect.

[0042] In the embodiment, a blocking plate 24 is provided at the left end of the inside of the feeding box 3. The upper end of the blocking plate 24 passes through the feeding box 3, and a pressure plate 25 is fixedly connected to its through end. A spring 26 is fixed between the pressure plate 25 and the feeding box 3.

[0043] In an embodiment, preferably, each of the several blocking plates 24 is fixedly provided with a moving rod 22 at its front and rear ends. The moving rod 22 passes through the feed box 3, and its passing end is fixedly connected to a second wedge block 21. Each of the several second toothed plates 16 is fixedly provided with a first wedge block 20 at its left end. The first wedge block 20 and the second wedge block 21 are used in conjunction.

[0044] In the embodiment, each of the feed boxes 3 is provided with a side groove 23 for the moving rod 22 to move up and down.

[0045] Specifically, initially, the second electric actuator 15 drives the second toothed plate 16 to move, but the first wedge block 20 and the second wedge block 21 do not contact each other. Under the action of the spring 26, the blocking plate 24 blocks the feed box 3, and the concrete and auxiliary materials are stored in the feed box 3. The mixing blade 19 can mix the auxiliary materials and concrete in the feed box 3 for a long time, improving the mixing effect. After mixing for a period of time (when material needs to be discharged), the extension time of the second electric actuator 15 is increased, and the first wedge block 20 and the second wedge block 21 cooperate with each other, so that the second wedge block 21 drives the moving rod 22 to move in the side groove 23, and the blocking plate 24 blocks the feed box 3. 4. The vertical movement of the feed box 3 creates an opening, allowing the mixed concrete and auxiliary materials to be discharged. The feed box 3 can be kept open for an extended period, allowing for continuous discharge and improving mixing efficiency. Alternatively, the first wedge block 20 and the second wedge block 21 can be controlled to engage intermittently, allowing the openings to open and discharge the concrete and auxiliary materials at intervals. During the discharge process, the second toothed plate 16 remains engaged with the second gear 17, causing the mixing blade 19 to rotate and mix the concrete and auxiliary materials, improving the mixing effect and avoiding the risks associated with manual mixing, high dust levels, injuries, high labor intensity, and high transportation costs.

[0046] The foregoing has shown and described the basic principles, main features, and characteristics of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A wet spraying trolley for mining concrete, characterized in that, include: The wet spraying trolley body (1) is provided with a feeding hopper (2) and a feeding device at the rear of the wet spraying trolley body (1); The feeding device includes several feeding boxes (3), each feeding box (3) has an opening at both ends. Adjacent feeding boxes (3) are connected by an elastic connecting belt (6). A rotating support assembly is provided between adjacent feeding boxes (3). A sealing plate (7) is fixedly connected to the left end of the leftmost feeding box (3). A rotating arm (701) is fixedly connected to the sealing plate (7). An installation plate (8) is fixedly installed at the upper end of the rear of the wet spraying trolley body (1). The rotating arm (701) is rotatably connected to the installation plate (8). A motor (9) for driving the rotating arm (701) to rotate is installed on the front side of the installation plate (8). A hopper (5) is provided at the lower end of the leftmost feeding box (3). A hopper (4) is provided at the upper end of the rightmost feeding box (3). A water spraying device is provided at the upper end of each of the feeding boxes (3). The rotating support assembly includes a connecting plate (10), a rotating shaft (11), and a first electric push rod (13). There are two connecting plates (10), which are symmetrically arranged on the front and rear walls of the left feed box (3). One end of the rotating shaft (11) is fixedly connected to the right feed box (3), and the other end is rotatably connected to the connecting plate (10). Each rotating shaft (11) is provided with a first gear (12). The first electric push rod (13) is fixedly connected to the left feed box (3). The output shaft of the first electric push rod (13) is fixedly connected to a first toothed plate (14), and the first toothed plate (14) meshes with the first gear (12). A support plate (1601) is fixedly provided on the front and rear walls of several of the feeding boxes (3). A second toothed plate (16) is slidably provided on the support plate (1601). A second electric push rod (15) is provided on the feeding box (3) to drive the second toothed plate (16) to move. Several stirring shafts (18) are arranged in parallel inside the feeding box (3). Stirring blades (19) are provided on the stirring shafts (18). Both ends of several stirring shafts (18) pass through the feeding box (3). A second gear (17) is fixedly provided at its passing end. The second gear (17) meshes with the second toothed plate (16).

2. The wet spraying trolley for mining concrete according to claim 1, characterized in that, A blocking plate (24) is provided on the left side inside several of the feed boxes (3). The upper end of the blocking plate (24) passes through the feed box (3), and a pressure plate (25) is fixedly connected to its through end. A spring (26) is fixed between the pressure plate (25) and the feed box (3).

3. A wet spraying trolley for mining concrete according to claim 2, characterized in that, Each of the aforementioned blocking plates (24) has a fixed moving rod (22) at its front and rear ends. The moving rod (22) passes through the feed box (3), and its passing end is fixedly connected to a second wedge block (21). Each of the aforementioned second toothed plates (16) has a fixed first wedge block (20) at its left end. The first wedge block (20) and the second wedge block (21) are used together.

4. A wet spraying trolley for mining concrete according to claim 3, characterized in that, Each of the aforementioned feed boxes (3) is provided with a side groove (23) for the moving rod (22) to move up and down.

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