Excavator with dust removal function

Abstract

The present invention provides an excavator with a dust removal function, comprising an excavator body, the excavator body comprising a working device, a vehicle body and a chassis, a dust removal system is arranged on the bucket arm in the working device, the dust removal system comprises a circular track, a mobile structure arranged on the circular track, a ground-drilling structure arranged on the mobile structure, a rotating structure connected to the ground-drilling structure, the rotating structure is arranged on the mobile structure, the circular track is connected to the bucket arm through a fixed rod; the mobile structure is also provided with a suction structure, a water spraying structure, a driving structure and a shield structure, the driving structure is connected to the suction structure, and the driving structure is connected to the circular track. The excavator with a dust removal function provided by the present invention enables the spray dust reduction device to have a small volume and can reduce dust and fully remove dust.

Description

Technical Field

[0001] The invention belongs to the technical field of excavators, and in particular relates to an excavator with a dust removal function. Background Art

[0002] An excavator, also known as an excavation machine or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the surface of the machine and load them into a transport vehicle or unload them to a stockpile. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rock. With the development of engineering construction, the development of excavators has also accelerated accordingly, and excavators have become one of the most important engineering machinery in engineering construction.

[0003] However, when the excavator is working, a lot of dust will be raised. At this time, a spray dust reduction device is needed to reduce the dust raised by the excavator, thereby reducing the pollution of dust to the environment. On the one hand, the reason why a lot of dust is generated is that the violent collision between the excavator and the excavation area, vibration and friction produce a lot of dust. On the other hand, the existing spray dust reduction device is often unable to fully and efficiently achieve dust reduction when working. The reason is that when the spray dust reduction device is large in size, although it can expand the dust removal area, the volume and weight are large, and the production cost is high; when the spray dust reduction device is small in size, the dust removal area is also small, and the problem of insufficient dust removal occurs. Therefore, how to make the spray dust reduction device have a small volume and can achieve the function of dust reduction and sufficient dust removal has become the key technical problem to be solved in this scheme. Summary of the invention

[0004] The purpose of the present invention is to provide an excavator with a dust removal function, which solves the technical problem of how to make a spray dust reduction device have a small volume and be able to reduce dust and remove dust fully, thereby producing a multifunctional technical effect.

[0005] An excavator with a dust removal function comprises an excavator body, the excavator body comprises a working device, a vehicle body and a chassis, a dust removal system is arranged on a boom in the working device, the dust removal system comprises a circular track, a mobile structure arranged on the circular track, a ground-drilling structure arranged on the mobile structure, and a rotating structure connected to the ground-drilling structure, the rotating structure is arranged on the mobile structure, and the circular track is connected to the boom through a fixed rod;

[0006] The movable structure is also provided with a suction structure, a water spraying structure, a driving structure and a shield structure. The driving structure is connected with the suction structure, and the driving structure is connected with the circular track.

[0007] The ground drilling structure comprises a rotating shaft, a spiral sheet arranged outside the rotating shaft, a rotating block connected to the top of the rotating shaft, and a motor 1 connected to the rotating shaft through a transmission belt 1, wherein the motor 1 is arranged on the rotating block;

[0008] The upper end surface of the rotating shaft is provided with an opening and is cylindrical. The rotating shaft is provided with an upper through hole and a lower through hole in sequence from top to bottom. The upper through hole and the lower through hole are both provided at the upper end of the rotating shaft, and the size of the upper through hole is larger than that of the lower through hole.

[0009] The rotating structure includes a connecting shaft vertically arranged on one side of the rotating block, and a second motor connected to the connecting shaft through a third transmission belt. The connecting shaft is rotatably arranged on the moving structure, and the second motor is arranged on the moving structure.

[0010] The moving structure includes a moving block 1 and a moving block 2 respectively arranged on both sides of the circular track, an upper support plate and a lower support plate respectively arranged above and below the moving block 2, the connecting shaft is arranged on the moving block 2, and the lower support plate is connected to the moving block 1 through a reinforcement ring, and the reinforcement ring is arranged coaxially with the circular track.

[0011] The driving structure includes a driving shaft vertically passing through the upper support plate and the lower support plate, a driving gear coaxially arranged on the driving shaft, and a motor connected to the top end of the driving shaft. The driving gear is connected to the meshing teeth arranged on the outer side of the circular track, and the bottom end of the driving shaft is connected to the suction structure.

[0012] The suction structure includes two exhaust fans respectively arranged at both ends of the lower support plate, one of the two exhaust fans is coaxially connected to the driving shaft, and the other of the two exhaust fans is coaxially connected to the driven shaft, the driven shaft is arranged on the lower support plate, and the driving shaft is connected to the driven shaft through a transmission belt.

[0013] The water spray structure comprises a water tank arranged on the upper support plate, a water pump connected to the water tank, and a drainage pipe 1 and a drainage pipe 2 connected to the water pump, one end of the drainage pipe 1 is connected to a spray head, and the spray head is arranged on the moving block 1;

[0014] One end of the second drain pipe is rotatably sealed and connected to the top end of the rotating shaft.

[0015] The shield structure includes a rubber shield 1 arranged around a reinforcement ring, a fixing plate arranged outside the reinforcement ring, and a rubber shield 2 arranged below the fixing plate, wherein both ends of the rubber shield 2 are respectively connected to the outside of the rubber shield 1.

[0016] The present invention achieves the following significant effects:

[0017] (1) This solution is provided with a ground-drilling structure, which has the following technical effects:

[0018] First, for excavation areas with hard ground, use the function of the rotating shaft and spiral blades to drill holes to soften the ground. In this way, the collision effect of the bucket with the ground is weakened when working, which helps to achieve the effect of dust reduction.

[0019] Second, an upper through hole and a lower through hole are provided at the upper end of the rotating shaft, and a water spraying structure is provided. As the rotating shaft rotates, water inside the rotating shaft is thrown out under the action of centrifugal force to form water mist, which combines with dust or dirt to achieve the effect of dust reduction;

[0020] The third is to cooperate with the rotating structure. Under the action of the second motor, the rotating block drives the rotating shaft to rotate a certain angle, that is, when the bucket is working, the spiral piece is prevented from contacting the ground;

[0021] Fourth, an exhaust fan is arranged at the upper end of the rotating shaft so that the wind direction is downward, which can block the dust on the one hand, and on the other hand, the flow of air helps the dust and water mist to combine;

[0022] (2) A suction structure is provided in this solution, which achieves the following technical effects:

[0023] First, the rotational movement of the second exhaust fan is driven by the driving structure, so that when the driving structure is working, the second exhaust fan is also working accordingly, realizing linkage, which helps to simplify the structure;

[0024] Secondly, the exhaust fan 2 makes the nearby air flow direction face upward, so that the dust combines with the water mist thrown out from the shaft, thereby increasing the dust removal effect;

[0025] Third, in the rotating shaft, the size of the upper through hole is slightly larger than that of the lower through hole, so that more water is sprayed out from the upper through hole, and this part of the water contacts the second exhaust fan and is dispersed by the second exhaust fan to form more water mist, which can basically achieve full coverage of the surrounding area and prevent dust from escaping into the air;

[0026] (3) A water spray structure is provided in this scheme, which has the following two technical effects:

[0027] First, a water source is provided, so that a large amount of water mist is generated during the rotation of the shaft, so that the water mist combines with the dust to achieve the effect of dust reduction and dust removal;

[0028] Second, the nozzle and the exhaust fan are respectively arranged on both sides of the bucket rod, so that when the nozzle and the exhaust fan work at the same time, a water mist film can be formed above the circular track. When the bucket is working, the dust generated can fully contact with the water mist film, which helps to increase the efficiency of dust reduction and dust removal;

[0029] (4) A circular track is provided so that the moving blocks 1 and 2 can move in a circle along the circular track under the action of the motor 3, so that the dust generated around the bucket can be fully cleared with low cost and high effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the excavator in the present invention.

[0031] Figure 2 It is a schematic diagram of the connection structure between the dust removal system and the bucket arm in the present invention.

[0032] Figure 3 It is a structural schematic diagram of the dust removal system in the present invention.

[0033] Figure 4 It is a schematic diagram of the connection structure of the ground drilling structure, the suction structure, the rotation structure, the water spraying structure and the driving structure in the present invention.

[0034] Figure 5 It is a schematic diagram of the connection structure of the ground drilling structure, the water spraying structure and the driving structure in the present invention.

[0035] Figure 6 It is a schematic diagram of the connection structure between the rotating shaft and the spiral sheet in the present invention.

[0036] Figure 7 It is a schematic diagram of the connection structure of the suction structure, the rotation structure and the driving structure in the present invention.

[0037] Figure 8 It is a schematic diagram of the connection structure between the moving block 1, the moving block 2 and the circular track in the present invention.

[0038] Fig. 9 It is a structural schematic diagram of the shield structure in the present invention.

[0039] The accompanying drawings are marked as follows: 1. excavator body; 2. bucket arm; 3. circular track; 4. shield structure; 41. rubber shield 1; 42. rubber shield 2; 43. fixing plate; 5. dust removal system; 51. drilling structure; 511. spiral blade; 512. lower through hole; 513. upper through hole; 514. exhaust fan 1; 515. rotating block; 516. motor 1; 517. transmission belt 1; 518. rotating shaft; 52. suction structure; 521. suction Fan 2; 522, transmission belt 2; 53, rotating structure; 531, motor 2; 532, transmission belt 3; 54, water spray structure; 541, water tank; 542, water pump; 543, drain pipe 1; 544, drain pipe 2; 55, driving structure; 551, motor 3; 552, driving shaft; 553, driving gear; 6, fixing rod; 7, reinforcement ring; 8, moving block 1; 9, nozzle; 10, moving block 2; 101, lower support plate. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0041] See also Figure 1-Figure 9 An excavator with a dust removal function comprises an excavator body 1, the excavator body 1 comprises a working device, a vehicle body part and a chassis part, a dust removal system 5 is arranged on a bucket arm 2 in the working device, the dust removal system 5 comprises a circular track 3, a mobile structure arranged on the circular track 3, a ground-drilling structure 51 arranged on the mobile structure, and a rotating structure 53 connected to the ground-drilling structure 51, the rotating structure 53 is arranged on the mobile structure, and the circular track 3 is connected to the bucket arm 2 through a fixed rod 6;

[0042] The mobile structure is also provided with a suction structure 52 , a water spraying structure 54 , a driving structure 55 and a shield structure 4 . The driving structure 55 is connected to the suction structure 52 , and the driving structure 55 is connected to the circular track 3 .

[0043] The ground drilling structure 51 includes a rotating shaft 518, a spiral piece 511 arranged outside the rotating shaft 518, a rotating block 515 connected to the top of the rotating shaft 518, and a motor 516 connected to the rotating shaft 518 through a transmission belt 517, and the motor 516 is arranged on the rotating block 515;

[0044] The upper end surface of the rotating shaft 518 is provided with an opening and is cylindrical. The rotating shaft 518 is provided with an upper through hole 513 and a lower through hole 512 from top to bottom. The upper through hole 513 and the lower through hole 512 are both provided at the upper end of the rotating shaft 518, and the size of the upper through hole 513 is larger than that of the lower through hole 512.

[0045] The rotating structure 53 includes a connecting shaft vertically arranged on one side of the rotating block 515, and a second motor 531 connected to the connecting shaft through a third transmission belt 532. The connecting shaft is rotatably arranged on the moving structure, and the second motor 531 is arranged on the moving structure.

[0046] The moving structure includes a moving block 1 8 and a moving block 2 10 respectively arranged on both sides of the circular track 3, an upper support plate and a lower support plate 101 respectively arranged above and below the moving block 2 10, a connecting shaft is arranged on the moving block 2 10, and the lower support plate 101 is connected to the moving block 1 8 through a reinforcement ring 7, and the reinforcement ring 7 is arranged coaxially with the circular track 3.

[0047] The driving structure 55 includes a driving shaft 552 that vertically passes through the upper support plate and the lower support plate 101, a driving gear 553 coaxially arranged on the driving shaft 552, and a motor 551 connected to the top of the driving shaft 552. The driving gear 553 is connected to the meshing teeth arranged on the outer side of the circular track 3, and the bottom end of the driving shaft 552 is connected to the suction structure 52.

[0048] The suction structure 52 includes two exhaust fans 521 respectively arranged at both ends of the lower support plate 101, one of which is coaxially connected to the driving shaft 552, and the other is coaxially connected to the driven shaft. The driven shaft is arranged on the lower support plate 101, and the driving shaft 552 is connected to the driven shaft through a transmission belt 522.

[0049] The water spraying structure 54 includes a water tank 541 disposed on the upper support plate, a water pump 542 connected to the water tank 541, a drain pipe 1 543 and a drain pipe 2 544 connected to the water pump 542, one end of the drain pipe 1 543 is connected to the spray head 9, and the spray head 9 is disposed on the moving block 1 8;

[0050] One end of the second drain pipe 544 is rotatably sealed to the top of the rotating shaft 518 .

[0051] The shield structure 4 includes a rubber shield 1 41 arranged around the reinforcement ring 7, a fixing plate 43 arranged outside the reinforcement ring 7, and a rubber shield 2 42 arranged below the fixing plate 43. Both ends of the rubber shield 2 42 are respectively connected to the outside of the rubber shield 1 41.

[0052] The first rubber stopper 41 and the second rubber stopper 42 are both flexible structures and can be deformed when in contact with the ground, so they will not affect the process of drilling and digging.

[0053] The specific working process of the present invention is as follows:

[0054] For the excavation area with hard ground, firstly, the ground is softened by drilling holes by using the action of the rotating shaft 518 and the spiral blade 511, and at the same time, the water spraying structure 54 is turned on. Under the action of centrifugal force, water is sprayed from the upper through hole 513 and the lower through hole 512 to remove dust. Since the ground is finally soft, the collision effect of the bucket with the ground is weakened when working, which helps to achieve the effect of dust reduction.

[0055] When the spiral piece 511 finishes working and the bucket needs to work, the rotating block 515 drives the rotating shaft 518 to rotate a certain angle under the action of the second motor 531 by using the rotating structure 53, that is, when the bucket is working, the spiral piece 511 is prevented from contacting the ground;

[0056] In addition, an exhaust fan 514 is provided at the upper end of the rotating shaft 518 so that the wind direction is downward, which can block the dust on the one hand, and on the other hand, the flow of air helps the dust and the water mist to combine;

[0057] Under the action of the driving structure 55, the second exhaust fan 521 is driven to rotate, realizing linkage, which helps to simplify the structure. The operation of the second exhaust fan 521 makes the nearby air flow direction face upward, so that the dust combines with the water mist thrown out of the rotating shaft 518, thereby increasing the dust removal effect;

[0058] In the rotating shaft 518, the size of the upper through hole 513 is slightly larger than that of the lower through hole 512, so that more water is sprayed out from the upper through hole 513, and this part of water contacts the second exhaust fan 521 and is dispersed by the second exhaust fan 521 to form more water mist, which can basically achieve full coverage of the surrounding area and prevent dust from escaping into the air;

[0059] In this solution, a water spray structure 54 is provided, and the nozzle 9 and the second exhaust fan 521 are respectively arranged on both sides of the bucket rod 2, so that when the nozzle 9 and the second exhaust fan 521 work at the same time, a water mist film can be formed above the circular track 3. When the bucket is working, the dust generated can fully contact with the water mist film, which helps to increase the efficiency of dust reduction and dust removal;

[0060] A circular track 3 is provided so that the moving block 1 8 and the moving block 2 10 can make circular motion along the circular track 3 under the action of the motor 3 551, so that the dust generated around the bucket can be fully covered and cleared with low cost and high effect.

[0061] Note: Boom and arm 2 refer to a kind of working device of the excavator, usually also called big arm and small arm, which are mainly used to control the digging and loading actions of the bucket. The arm connected to the frame is longer, so it is commonly called big arm, and its technical name is boom; the arm connected to the bucket is smaller, so it is commonly called small arm, and its technical name is arm 2, so they are commonly called big and small arms;

[0062] The working device comprises a boom, a dipper arm 2, a bucket, a hydraulic cylinder, a connecting rod, a pin shaft and a pipeline.

[0063] The vehicle body includes the engine, shock absorber main pump, main valve, cab, slewing mechanism, slewing bearing, slewing joint, turntable, hydraulic oil tank, fuel tank, control oil circuit, electrical components and counterweight.

[0064] The chassis includes track frame, track, guide wheel, supporting roller, supporting roller, final drive and tensioning device;

[0065] The above are all prior art and will not be described in detail here.

[0066] Technical features not described in the present invention can be achieved through or by adopting existing technologies and will not be described in detail here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. An excavator with a dust removal function, comprising an excavator body (1), wherein the excavator body (1) comprises a working device, a vehicle body and a chassis, and is characterized in that: A dust removal system (5) is arranged on the boom (2) in the working device, the dust removal system (5) comprising a circular track (3), a mobile structure arranged on the circular track (3), a ground-boring structure (51) arranged on the mobile structure, and a rotating structure (53) connected to the ground-boring structure (51), the rotating structure (53) being arranged on the mobile structure, and the circular track (3) being connected to the boom (2) via a fixed rod (6); The movable structure is also provided with a suction structure (52), a water spraying structure (54), a driving structure (55) and a shield structure (4); the driving structure (55) is connected to the suction structure (52), and the driving structure (55) is connected to the circular track (3); The drilling structure (51) comprises a rotating shaft (518), a spiral sheet (511) arranged outside the rotating shaft (518), a rotating block (515) connected to the top of the rotating shaft (518), and a motor (516) connected to the rotating shaft (518) via a transmission belt (517), wherein the motor (516) is arranged on the rotating block (515); The upper end surface of the rotating shaft (518) is provided with an opening and is cylindrical, and the rotating shaft (518) is provided with an upper through hole (513) and a lower through hole (512) in sequence from top to bottom, and the upper through hole (513) and the lower through hole (512) are both provided at the upper end of the rotating shaft (518), and the size of the upper through hole (513) is larger than the size of the lower through hole (512); The rotating structure (53) comprises a connecting shaft vertically arranged on one side of the rotating block (515), and a second motor (531) connected to the connecting shaft via a third transmission belt (532); the connecting shaft is rotatably arranged on the moving structure, and the second motor (531) is arranged on the moving structure; The moving structure comprises a moving block 1 (8) and a moving block 2 (10) respectively arranged on both sides of the circular track (3), an upper support plate and a lower support plate (101) respectively arranged above and below the moving block 2 (10), the connecting shaft is arranged on the moving block 2 (10), the lower support plate (101) is connected to the moving block 1 (8) via a reinforcing ring (7), and the reinforcing ring (7) is arranged coaxially with the circular track (3); The driving structure (55) comprises a driving shaft (552) vertically passing through the upper support plate and the lower support plate (101), a driving gear (553) coaxially arranged on the driving shaft (552), and a motor three (551) connected to the top end of the driving shaft (552), the driving gear (553) being connected to the meshing teeth arranged on the outer side of the circular track (3), and the bottom end of the driving shaft (552) being connected to the suction structure (52).

2. The excavator with dust removal function according to claim 1, characterized in that: The suction structure (52) includes two exhaust fans (521) respectively arranged at two ends of the lower support plate (101), wherein one of the two exhaust fans (521) is coaxially connected to the driving shaft (552), and the other of the two exhaust fans (521) is coaxially connected to the driven shaft, the driven shaft is arranged on the lower support plate (101), and the driving shaft (552) is connected to the driven shaft through a transmission belt (522).

3. The excavator with dust removal function according to claim 1, characterized in that: The water spray structure (54) comprises a water tank (541) arranged on the upper support plate, a water pump (542) connected to the water tank (541), a drainage pipe 1 (543) and a drainage pipe 2 (544) connected to the water pump (542), one end of the drainage pipe 1 (543) is connected to a spray head (9), and the spray head (9) is arranged on a moving block 1 (8); One end of the second drain pipe (544) is rotatably sealed with the top end of the rotating shaft (518).

4. The excavator with dust removal function according to claim 1, characterized in that: The shield structure (4) comprises a rubber shield 1 (41) arranged around the reinforcement ring (7), a fixing plate (43) arranged outside the reinforcement ring (7), and a rubber shield 2 (42) arranged below the fixing plate (43), wherein both ends of the rubber shield 2 (42) are respectively connected to the outside of the rubber shield 1 (41).

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