Excavation dust prevention equipment and use method thereof

Abstract

The present invention discloses an excavation dust prevention device, comprising a base, a crawler and a crawler wheel, the top of the base being connected to a cab, the base being located on the side of the cab and being connected to a power arm, a bucket arm and a bucket, the bottom of the bucket being rotatably provided with a sealing plate, the connection between the sealing plate and the bucket being provided with a rotating shaft and the sealing plate being rotatably connected to the bucket via the rotating shaft, the rotating shaft passing through two symmetrical side walls of the bucket and being connected to a transmission box at both ends of the bucket, the two transmission boxes being commonly connected to an atomizing dust reduction structure, and the present invention also discloses a method for using the excavation dust prevention device. The advantages of the present invention are that the squeezing of the liquid by the atomizing membrane achieves the effect of squeezing out water mist, and the position of the squeezed water mist corresponds to the position of the discharged soil blocks below, which has the advantage that when the soil blocks are transferred and discharged, floating dust can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal construction, and in particular to an excavation dust prevention device and a use method thereof. Background Art

[0002] In municipal construction, pit digging operations are often required, and in the prior art, pit digging and earth-moving operations are generally performed by excavators.

[0003] When the excavation equipment in the prior art is used, it is necessary to transfer the soil blocks discharged after digging the pit, and during the transfer process, they are generally dumped directly on the ground nearby or on a transfer vehicle. The problem is that when the dumped soil blocks come into contact with the ground or the transfer vehicle, a large amount of dust will be generated under the action of gravity, which will seriously affect the surrounding environment, cause air pollution, and also affect the health of the construction workers. Based on this, the present invention designs an excavation dust prevention device and a method for using the same.

[0004] In view of this, this invention is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art and to propose an excavation dust prevention device and a method of using the same.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an excavation dust prevention equipment, including a base, a crawler and a crawler wheel, the top of the base is connected to a cab, the base is located on the side of the cab and is connected to a power arm, a bucket arm and a bucket, a sealing plate is rotatably provided at the bottom of the bucket, a rotating shaft is provided at the connection between the sealing plate and the bucket and the sealing plate is rotatably connected to the bucket through the rotating shaft, the rotating shaft passes through the two symmetrical side walls of the bucket and is connected to a transmission box at both ends of the bucket, and the two transmission boxes are commonly connected to an atomizing dust reduction structure.

[0007] Furthermore, the atomizing dust reduction structure includes a rotating motor arranged in a transmission box, the output shaft of the rotating motor is coaxially fixedly connected to the rotating shaft, the parts of the rotating shaft located in the two transmission boxes are respectively fixedly connected to worm gears, the bottom of each worm gear is cooperatively connected to a worm, the rotation center of each worm gear is fixedly provided with a rotating shaft, each rotating shaft is fixedly provided with a connecting plate, each connecting plate is fixedly provided with an arc block, each arc block is provided with an arc cavity, each arc cavity is communicated with the outside world on the side away from the connecting plate, the connection between the arc cavity and the outside world is sealed with an atomizing membrane, the top of the connecting plate is provided with a liquid inlet, and the liquid inlet is sealed with a one-way valve.

[0008] Furthermore, a turntable is embedded in the top of the base, which is rotatably connected to the base, and the cab and power arm are both fixedly arranged in the turntable. The upper end surface of the turntable is coaxially rotatably connected to a water bucket, and the outer side wall of the water bucket is fixedly connected to the base through a bracket. A connecting shaft is fixedly arranged on the top of the turntable, and the connecting shaft passes through the bottom wall of the water bucket and is rotatably connected to the water bucket. A water outlet pipe is connected to the top of the water bucket close to the cab, and the other end of the water outlet pipe is fixed to the top of the two transmission boxes through a branch pipe.

[0009] Furthermore, a square fixing ring is fixedly provided on the outer part of the atomizing membrane, a movable groove is provided on the inner wall of the transmission box, the size of the outer wall of the fixing ring matches the movable groove, and a plurality of springs are fixedly provided on the part of the fixing ring located in the movable groove, and the fixed end of each spring is arranged on the side of the movable groove away from the atomizing membrane.

[0010] Furthermore, a connecting pipe is fixedly provided on the inner top of the transmission box, and the connecting pipe adopts a bellows structure. The other end of the connecting pipe is sealed and fixedly connected to the liquid inlet. A water inlet is provided on the top of the water storage barrel, and the water inlet is sealed and connected to the external water pipe.

[0011] Furthermore, each of the outer parts of the transmission box and the bucket is fixedly provided with a bucket cone, and the multiple bucket cones are coplanar and equidistantly arranged. A connection port is opened at the bottom of each transmission box, and a rotating plate is sealed in each connection port. Each rotating plate is rotatably connected to the inner wall of the transmission box through a torsion spring.

[0012] Furthermore, the connecting shaft is located at one end of the water storage barrel and is connected to a transmission shaft. The outer wall of the transmission shaft is provided with a thread and is threadedly connected to a pressure plate. The water storage barrel is provided with a linkage shaft on the side of the connecting shaft. The linkage shaft and the transmission shaft are provided with a synchronous wheel at the same height. The two synchronous wheels are jointly connected to a synchronous belt.

[0013] Furthermore, the connecting shaft and the linkage shaft are respectively fixed with a transmission gear below the synchronous wheel, and the two transmission gears are meshed. A one-way bearing is provided at the connection between the transmission shaft and the connecting shaft, and a one-way bearing is provided at the connection between the linkage shaft and the corresponding transmission gear.

[0014] Furthermore, a stratification plate is provided above the synchronous wheel, the outer diameter of the stratification plate matches the inner diameter of the water storage barrel and is fixedly provided on the inner wall of the water storage barrel, and the transmission shaft is sealed and rotatably connected to the stratification plate.

[0015] The present application also provides a method for using an excavation dust prevention device, which includes the following steps:

[0016] Move the excavation dust prevention equipment to the digging position by means of crawlers, seal the water inlet on the top of the water storage bucket with the water pipe, and fill the water storage bucket with water;

[0017] Use the bucket to dig the pit, turn the turntable and start the rotary motor to place the scooped soil on the collection vehicle;

[0018] Reverse rotation of the turntable returns the bucket to the digging position, continuing the work of digging and shoveling out soil blocks, and replenishing water to the water storage tank through the water pipe;

[0019] After finishing the work, the machine drives away from the digging site via the crawler tracks.

[0020] Compared with the prior art, the present invention has the following beneficial effects: through the transmission box, worm gear, worm, arc block, atomizing membrane and spring arranged on both sides of the bucket, when the bucket is discharging, the two arc blocks located in the transmission box are rotated to the outside of the transmission box, and the atomizing membrane squeezes the liquid to achieve the effect of squeezing out water mist, and the position of the extruded water mist corresponds to the position of the discharged soil blocks below. The advantage of this is that when the soil blocks are transferred and discharged, floating dust can be effectively reduced; through the turntable, connecting shaft, transmission gear, transmission gear, pressure plate, linkage shaft, synchronous wheel and synchronous belt, when the bucket rotates through the turntable, the pressure plate in the water storage barrel is pressed down and moved. The advantage of this is that through the actual operation process of the bucket rotating to discharge materials, the pressure plate in the water storage barrel is driven to replenish the water in the arc cavity, thereby avoiding water waste and saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of an excavation dust prevention device proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the bottom structure of a bucket and a transmission box in an excavation dust prevention device proposed by the present invention;

[0023] Figure 3 This is an enlarged schematic diagram of part A of an excavation dust prevention device proposed by the present invention;

[0024] Figure 4 This is a cross-sectional view of a transmission box in an excavation dust prevention device proposed by the present invention;

[0025] Figure 5 This is a cross-sectional view of a water storage bucket in an excavation dust prevention device proposed by the present invention;

[0026] Figure 6 This is an enlarged schematic diagram of part B of an excavation dust prevention device proposed by the present invention;

[0027] Figure 7This is an enlarged schematic diagram of part C in the excavation dust prevention equipment proposed by the present invention.

[0028] In the figure: 1 base, 2 crawler track, 3 crawler wheel, 4 cab, 5 bucket, 6 sealing plate, 7 rotating shaft, 8 transmission box, 9 rotating motor, 10 worm gear, 11 worm, 12 rotating shaft, 13 connecting plate, 14 arc block, 15 arc cavity, 16 liquid inlet, 17 turntable, 18 water storage bucket, 19 rotating plate, 20 connecting shaft, 21 water outlet pipe, 22 branch pipe, 23 fixing ring, 24 movable groove, 25 spring, 26 connecting pipe, 27 bucket cone, 28 transmission gear, 29 transmission shaft, 30 pressure plate, 31 linkage shaft, 32 layered plate, 33 synchronous wheel, 34 synchronous belt, 36 atomizing film. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. The fixed connection in this embodiment can be achieved by welding, bonding, screws, interference fit, or integral molding.

[0030] Example

[0031] Reference Figure 1-7 , an excavation dust prevention equipment, including a base 1, crawler 2 and crawler wheel 3, the top of the base 1 is connected to a cab 4, the base 1 is located on the side of the cab 4 and is connected to a power arm, a bucket arm and a bucket 5. The above structure is a mechanical arm structure in the prior art, which can realize the excavation function, and a sealing plate 6 is provided for rotation at the bottom of the bucket 5. A rotating shaft 7 is provided at the connection between the sealing plate 6 and the bucket 5, and the sealing plate 6 is rotatably connected to the bucket 5 through the rotating shaft 7. After rotation, the soil blocks collected in the bucket 5 can be released through the sealing plate 6 to realize the unloading function. The rotating shaft 7 passes through the two symmetrical side walls of the bucket 5 and is connected to a transmission box 8 at both ends of the bucket 5. The two transmission boxes 8 are commonly connected to an atomizing dust reduction structure.

[0032] In an optional embodiment, the atomizing dust reduction structure includes a rotating motor 9 arranged in a transmission box 8, the output shaft of the rotating motor 9 is coaxially fixedly connected to the rotating shaft 7, and the rotating motor 9 rotates the rotating shaft 7, thereby driving the sealing plate 6 to rotate, and the parts located in the two transmission boxes 8 are respectively fixedly connected to worm gears 10, and the bottom of each worm gear 10 is matched with a worm 11, and the rotation center of each worm gear 10 is fixedly provided with a rotating shaft 12, wherein the rotation directions of the two worm gears 10 are opposite, so that the two worm gears 11 will drive the two worm gears 10 to rotate relative to each other, and each rotating shaft 12 is fixed to the rotation center of the worm gear 10. A connecting plate 13 is fixedly provided, and an arc block 14 is fixedly provided in each connecting plate 13. When the sealing plate 6 is rotated by rotating the motor 9, the two arc blocks 14 will be driven to rotate at the same time, so that the two arc blocks 14 are separated from the transmission box 8 and face the bottom of the atomizing membrane 36. An arc cavity 15 is provided in each arc block 14. Each arc cavity 15 is connected to the outside world on the side away from the connecting plate 13. The connection between the arc cavity 15 and the outside world is sealed with an atomizing membrane 36. A liquid inlet 16 is provided through the top of the connecting plate 13, and a one-way valve is sealed in the liquid inlet 16.

[0033] In an optional embodiment, a turntable 17 is embedded in the top of the base 1, and the turntable 17 is rotatably connected to the base 1. The cab 4 and the power arm are both fixedly arranged in the turntable 17. The upper end face of the turntable 17 is coaxially rotatably connected to the water bucket 18. The outer wall of the water bucket 18 is fixedly connected to the base 1 through a bracket. A connecting shaft 20 is fixedly provided on the top of the turntable 17. The connecting shaft 20 passes through the bottom wall of the water bucket 18 and is rotatably connected to the water bucket 18. A water outlet pipe 21 is provided on the top of the side of the water bucket 18 close to the cab 4. The other end of the water outlet pipe 21 is fixedly arranged on the top of the two transmission boxes 8 through a branch pipe 22. Water is input from the water bucket 18 into the arc cavity 15 in the transmission box 8, and the water will be converted into an aerosol state under the pressure output of the atomizing membrane 36, which can effectively settle the floating dust in the air.

[0034] In an optional embodiment, a square fixing ring 23 is fixedly provided on the outer portion of the atomizing membrane 36, and a movable groove 24 is provided on the inner wall of the transmission box 8. The size of the outer wall of the fixing ring 23 matches the movable groove 24. The part of the fixing ring 23 located in the movable groove 24 is fixedly provided with multiple springs 25, and the fixed end of each spring 25 is arranged on the side of the movable groove 24 away from the atomizing membrane 36. The advantage of this is that when the two arc blocks 14 rotate, the two springs 25 located in the arc cavity 15 will contract when the arc block 14 rotates due to their own compression elasticity. Therefore, during the rotation process, the fixing ring 23 will slide at a speed lower than the movement of the arc block 14. Therefore, the speed difference between the arc block 14 and the fixing ring 23 will cause the atomizing membrane 36 to rotate relative to the arc block 14, which will squeeze the water in the arc cavity 15, so that this part of the water forms a water mist state after being output through the atomizing membrane 36.

[0035] In an optional embodiment, a connecting pipe 26 is fixedly provided on the inner top of the transmission box 8, and the connecting pipe 26 adopts a bellows structure. The other end of the connecting pipe 26 is sealed and fixedly connected to the liquid inlet 16. A water inlet is provided on the top of the water storage barrel 18, and the water inlet is sealed and connected to the external water pipe. A bucket cone 27 is fixedly provided on the outer part of each transmission box 8 and the bucket 5. Multiple bucket cones 27 are coplanar and equidistantly arranged, so that the transmission box 8 is arranged next to the bucket 5 to assist in excavation work. A connecting port is provided at the bottom of the transmission box 8, and a rotating plate 19 is sealed in each connecting port. Each rotating plate 19 is rotatably connected to the inner wall of the transmission box 8 through a torsion spring. The rotating plate 19 can seal the connecting port in the initial state, thereby preventing external impurities from entering the transmission box 8 and affecting the transmission process.

[0036] In an optional embodiment, the connecting shaft 20 is located at one end of the water storage barrel 18 and is connected to a transmission shaft 29. The outer wall of the transmission shaft 29 is provided with a thread and is threadedly connected to a pressure plate 30. The pressure plate 30 is set to a square structure and is sealed and slidably connected to the inner wall of the water storage barrel 18, wherein a sealing layer is provided at the connection between the pressure plate 30 and the transmission shaft 29 to fill the gap between the transmission shaft 29 and the pressure plate 30. The water storage barrel 18 is provided with a linkage shaft 31 on the side of the connecting shaft 20. The linkage shaft 31 and the transmission shaft 29 are at the same height as each other. A synchronous wheel 33 is provided respectively. The two synchronous wheels 33 are connected together with a synchronous belt 34. The connecting shaft 20 and the linkage shaft 31 are located at the same height. A transmission gear 28 is fixedly provided below the step wheel 33, and the two transmission gears 28 are meshed. A one-way bearing is provided at the connection between the transmission shaft 29 and the connecting shaft 20, and a one-way bearing is provided at the connection between the linkage shaft 31 and the corresponding transmission gear 28. Both one-way bearings are only allowed to rotate in the counterclockwise direction, that is, a rotation limit will be generated when rotating clockwise. In this solution, when the turntable 17 rotates clockwise to discharge the material, the connecting shaft 20 will drive the transmission shaft 29 to rotate under the limit of the one-way bearing, and the transmission gear 28 connected to the connecting shaft 20 will rotate counterclockwise when it is transmitted to another transmission gear 28. Therefore, The clockwise rotation of the linkage shaft 31 will drive the transmission shaft 29 to rotate clockwise. Therefore, no matter whether the connecting shaft 20 rotates clockwise or counterclockwise, the transmission shaft 29 will be driven. The driving shaft 29 rotates clockwise. The advantage of this is that no matter which direction the bucket 5 rotates, the pressure plate 30 will press down to replenish the liquid in the arc-shaped chamber 15. After the transmission of the connecting shaft 20 is completed and the pressure plate 30 is moved up, under the self-gravity of the pressure plate 30 and the subsequent water replenishment, the pressure plate 30 moves down and drives the transmission shaft 29 to rotate counterclockwise. A layering plate 32 is provided above the synchronous wheel 33 of the linkage shaft 31. The outer diameter of the layering plate 32 matches the inner diameter of the water storage barrel 18 and is fixedly provided on the inner wall of the water storage barrel 18, which serves to isolate the water and the parts below from each other. The transmission shaft 29 is sealed and rotatably connected with the layering plate 32.

[0037] When the present application is digging, the excavated soil is transferred by the bucket 5, wherein the soil collected in the bucket 5 can be transferred to the ground on one side or to a transfer vehicle under the rotation of the turntable 17. At this time, the rotation of the turntable 17 will cause the connecting shaft 20 to rotate at the same time, and the rotation of the connecting shaft 20 will cause the pressure plate 30 located in the water storage barrel 18 to move upward, so that the water in the water storage barrel 18 passes through the water outlet pipe 21 and enters the arc cavity 15 through the connecting pipe 26. At this time, the bucket 5 rotates to the discharge position and starts the rotating motor 9. , so that the rotating shaft 7 drives the sealing plate 6 to rotate, so that the soil blocks in the bucket 5 will be unloaded. In this process, the two connecting plates 13 drive the two arc blocks 14 to rotate relative to each other through the worm gear structure, so that the two arc blocks 14 will leave the transmission box 8 and keep the atomizing membrane 36 part of the two arc blocks 14 facing the bottom of the bucket 5. At the same time, during the rotation of the arc block 14, the atomizing membrane 36 squeezes the water, so that when the sealing plate 6 rotates, water mist is output to the bottom to achieve dust reduction function and reduce pollution.

[0038] The present application also provides a method for using the above-mentioned excavation dust prevention device to dig a pit, comprising the following steps:

[0039] Step 1: Move the excavation dust prevention equipment to the digging position via the crawler 2, and seal the water inlet on the top of the water storage bucket 18 with the water pipe to fill the water storage bucket 18 with water;

[0040] Step 2: dig the pit with the bucket 5, rotate the turntable 17 and start the rotary motor 9 to place the shoveled soil on the collection vehicle;

[0041] Step 3: Rotate the turntable 17 in the opposite direction to return the bucket 5 to the digging position, continue digging and shoveling out the soil, and replenish water in the water storage tank 18 through the water pipe;

[0042] Step 4, finish the work and drive away from the digging site via crawler track 2.

[0043] The above description is only a preferred specific embodiment of the present invention, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. An excavation dust prevention device, comprising a base (1), a crawler (2) and a crawler wheel (3), characterized in that: The top of the base (1) is connected to a cab (4), and the base (1) is located on the side of the cab (4) and is connected to a power arm, a bucket arm and a bucket (5). A sealing plate (6) is rotatably provided at the bottom of the bucket (5), and a rotating shaft (7) is provided at the connection between the sealing plate (6) and the bucket (5). The sealing plate (6) is rotatably connected to the bucket (5) via the rotating shaft (7). The rotating shaft (7) passes through two symmetrical side walls of the bucket (5) and is connected to a transmission box (8) at both ends of the bucket (5). An atomizing dust reduction structure is commonly connected to the two transmission boxes (8); The atomization dust reduction structure includes a rotating motor (9) arranged in a transmission box (8), the output shaft of the rotating motor (9) is coaxially fixedly connected to the rotating shaft (7), the parts of the rotating shaft (7) located in the two transmission boxes (8) are respectively fixedly connected to worm wheels (10), the bottom of each worm wheel (10) is cooperatively connected to a worm (11), the rotation center of each worm wheel (10) is fixedly provided with a rotating shaft (12), each rotating shaft (12) is fixedly provided with a connecting plate (13), each connecting plate (13) is fixedly provided with an arc block (14), each arc block (14) is provided with an arc cavity (15), each arc cavity (15) is connected to the outside world at a side away from the connecting plate (13), an atomization membrane (36) is sealed at the connection between the arc cavity (15) and the outside world, a liquid inlet (16) is provided through the top of the connecting plate (13), and a one-way valve is sealed in the liquid inlet (16); A turntable (17) is embedded in the top of the base (1), and the upper end surface of the turntable (17) is coaxially rotatably connected to a water storage bucket (18), and a connecting shaft (20) is fixedly provided on the top of the turntable (17); A square fixing ring (23) is fixedly provided on the outer portion of the atomizing membrane (36), a movable groove (24) is provided on the inner side wall of the transmission box (8), the outer side wall of the fixing ring (23) is sized to match the movable groove (24), and a plurality of springs (25) are fixedly provided on the portion of the fixing ring (23) located in the movable groove (24), and the fixed end of each spring (25) is provided on a side of the movable groove (24) away from the atomizing membrane (36); The connecting shaft (20) is located at one end of the water storage barrel (18) and is connected to a transmission shaft (29). The outer wall of the transmission shaft (29) is provided with a thread and is threadedly connected to a pressure plate (30). The water storage barrel (18) is provided with a linkage shaft (31) on the side of the connecting shaft (20). The linkage shaft (31) and the transmission shaft (29) are provided with a synchronous wheel (33) at the same height. The two synchronous wheels (33) are connected to a synchronous belt (34). The connecting shaft (20) and the linkage shaft (31) are located below the synchronous wheel (33), and are each fixed with a transmission gear (28). The two transmission gears (28) are meshed. A one-way bearing is provided at the connection between the transmission shaft (29) and the connecting shaft (20), and a one-way bearing is provided at the connection between the linkage shaft (31) and the corresponding transmission gear (28).

2. The excavation dust prevention equipment according to claim 1, characterized in that: The turntable (17) is rotatably connected to the base (1), the cab (4) and the power arm are fixedly arranged in the turntable (17), the outer wall of the water storage barrel (18) is fixedly connected to the base (1) through a bracket, the connecting shaft (20) passes through the bottom wall of the water storage barrel (18) and is rotatably connected to the water storage barrel (18), and a water outlet pipe (21) is provided at the top of the side of the water storage barrel (18) close to the cab (4), and the other end of the water outlet pipe (21) is fixedly arranged at the top of the two transmission boxes (8) through a branch pipe (22).

3. The excavation dust prevention equipment according to claim 2, characterized in that: A connecting pipe (26) is fixedly provided on the inner top of the transmission box (8), and the connecting pipe (26) adopts a bellows structure. The other end of the connecting pipe (26) is sealed and fixedly connected to the liquid inlet (16). A water inlet is provided on the top of the water storage barrel (18), and the water inlet is sealed and connected to an external water pipe.

4. The excavation dust prevention equipment according to claim 3, characterized in that: A bucket cone (27) is fixedly provided on the outer portion of each transmission box (8) and the bucket (5), and a plurality of bucket cones (27) are coplanar and equidistantly arranged. A connection port is provided at the bottom of each transmission box (8), and a rotating plate (19) is sealed and connected to each connection port. Each rotating plate (19) is rotatably connected to the inner wall of the transmission box (8) via a torsion spring.

5. The excavation dust prevention equipment according to claim 4, characterized in that: A stratification plate (32) is provided above the synchronous wheel (33). The outer diameter of the stratification plate (32) matches the inner diameter of the water storage barrel (18) and is fixedly provided on the inner wall of the water storage barrel (18). The transmission shaft (29) is rotatably connected to the stratification plate (32).

6. A method for using an excavation dust prevention device, characterized in that: The excavation dust prevention device according to claim 5 comprises the following steps: The excavation dust prevention equipment is moved to the digging position by means of the crawler (2), and the water inlet on the top of the water storage bucket (18) is sealedly connected to the water pipe, and the water storage bucket (18) is filled with water; The excavated area is excavated by using a bucket (5), and the rotary disk (17) is rotated and the rotary motor (9) is started to place the excavated soil on a collection vehicle; Rotate the turntable (17) in the reverse direction to return the bucket (5) to the digging position, continue digging and shoveling out the soil, and replenish water to the water storage barrel (18) through the water pipe; After finishing the work, the machine drives away from the digging site via the crawler track (2).

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