Milling machine dust removal device

Abstract

The present invention discloses a dust removal device for a milling machine, which relates to the technical field of road maintenance, and includes a vehicle body, a milling device is provided at the bottom of the vehicle body, a conveying device is provided at the front end of the milling device, a dust removal channel is provided inside the front end of the vehicle body, the dust removal channel has an air inlet and an air outlet respectively, a dust removal component is provided in the dust removal channel, and a centrifugal fan for guiding the airflow direction in the dust removal channel is provided at the air outlet. The first motor in the present invention drives a plurality of filter plates to rotate at high speed, and the centrifugal force generated by the rotation can be used to throw out the debris attached to the filter plates, so as to achieve the effect of cleaning the filter plates. This filter plate cleaning method can not only effectively extend the cleaning effect of the entire dust removal component, but also accelerate the air flow rate in the dust removal channel when the filter plate rotates to improve the cleaning efficiency of the entire dust removal component. In addition, the filter plates are cleaned alternately to ensure the continuity of the dust removal work in the dust removal channel, and the working efficiency of the milling machine is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of road maintenance, and in particular to a dust removal device for a milling machine. Background Art

[0002] When a milling machine is milling on a road, especially after the ash is spread, it is easy to produce a lot of smoke and dust. This not only pollutes the environment, but also may affect the health of construction workers. In order to reduce dust, the existing technology mostly uses negative pressure suction and filtration plus water sprinkling to remove dust. Although this dust removal method has a certain effect, it still has many limitations.

[0003] In the prior art, a Chinese invention patent application with publication number CN109914213A provides a milling machine dust removal device and a milling machine, wherein the milling machine includes a conveying assembly, and the milling machine dust removal device includes: a housing, a fan and a filter assembly; an air duct is formed in the housing, the air duct includes a vertical channel, an air inlet and an air outlet are arranged on the housing, one end of the vertical channel is connected to the air inlet, and the other end of the vertical channel is connected to the air outlet, and the air inlet faces the conveying channel of the conveying assembly; the fan is installed on the housing and arranged at the air outlet; the filter assembly is arranged in the air duct. The milling machine dust removal device provided by the invention has a filter assembly in the air duct, and dust is separated from the air after passing through the filter assembly, and clean air is discharged from the air outlet, so that dust removal is achieved while avoiding direct discharge of dust into the air, thereby reducing pollution to the environment surrounding the milling machine.

[0004] It can be seen from the technical solution proposed in the above-mentioned invention patent document that the above-mentioned solution still has obvious shortcomings. Specifically, using the filter component in the above-mentioned solution to filter the dust in the air duct can effectively purify the air environment in the air duct. During long-term filtering use, in order to improve the dust removal effect of the device, the above-mentioned technical solution also adds a spray component in the air duct, which adsorbs dust by spraying water mist in the air to achieve the dust reduction effect. However, this kind of water-rich granular dust has strong viscosity and is more likely to clog the filter component, thereby greatly reducing the effective filtration time of the filter component. In order to ensure the dust removal effect of the dust removal device, the filter component needs to be continuously cleaned or replaced during the long-term operation of the milling machine, which is extremely time-consuming. In addition, during the disassembly of the filter component, the milling operation needs to be interrupted to ensure the safety of the operator, which reduces the overall milling operation efficiency. Therefore, according to the shortcomings of the prior art, corresponding improvements need to be made to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a dust removal device for a milling machine to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A dust removal device for a milling machine comprises a body, a milling device is provided at the bottom of the body, a conveying device is provided at the front end of the milling device, a dust removal channel is provided inside the front end of the body, an air inlet and an air outlet are provided at both ends of the dust removal channel, a dust removal component is provided in the dust removal channel, and a centrifugal fan for guiding the airflow direction in the dust removal channel is provided on the outer wall of the air outlet.

[0008] The dust removal assembly includes two sets of mounting frames rotatably installed in the dust removal channel, and the two sets of mounting frames are alternately installed in the dust removal channel, a filter plate is fixedly installed in each of the mounting frames, cross bars are fixedly installed at both ends of each of the mounting frames, and the cross bars pass through the inner wall of the vehicle body, and driving assemblies for driving the two sets of mounting frames to rotate are fixedly installed on both sides of the vehicle body.

[0009] Furthermore, the driving assembly includes a first motor fixedly mounted on the side wall of the vehicle body, and the output end of the first motor is sleeved with a first adjusting wheel rotatably connected to the outer wall of the vehicle body, the first adjusting wheel and multiple first synchronous wheels located on the same side are connected to the same first synchronous belt, the two first motors drive the multiple filter plates to rotate in a clockwise direction, and the two first motors drive the two groups of mounting frames to rotate alternately.

[0010] Furthermore, a cleaning assembly is fixedly installed on the mounting frame, and the cleaning assembly includes a rotating rod rotatably installed at both ends of the mounting frame, and a cleaning brush head is fixedly installed on the side wall of each rotating rod, and an adjustment assembly for adjusting the fixed state of the cleaning assembly is fixedly installed on the side walls on both sides of the vehicle body.

[0011] Furthermore, the adjustment assembly includes an adjustment plate slidably mounted at both ends of a rotating rod, both ends of the rotating rod are provided with an empty slot for accommodating the adjustment plate, a spring is installed in the empty slot, and one end of the spring is pressed against the end of the empty slot, and the other end is pressed against the side wall of the adjustment plate, the adjustment plate is fixedly mounted with a plurality of limiting protrusions along the circumferential direction, and both ends of each of the rotating rods are provided with a plurality of sliding grooves that match the limiting protrusions one by one, a special-shaped plate is fixedly mounted on one side of the adjustment plate, a slot for accommodating the special-shaped plate is provided in the mounting frame, and several shaped plates are fixedly mounted on the side walls on both sides of the vehicle body, and one side of the several shaped plates A cylinder is fixedly installed, and a slide plate is fixedly connected to the output end of the cylinder, the slide plate is slidably installed in the several-type plates, and multiple top support rods are rotatably installed on one side of the several-type plates, and multiple second synchronous wheels corresponding to the first synchronous wheels are sleeved on the top support rod. Second motors are fixedly installed on the side walls at both ends of the car body, and a second adjusting wheel rotatably connected to the outer wall of the car body is sleeved on the output end of the second motor, and the second adjusting wheel and multiple second synchronous wheels are connected to the same second synchronous belt, and a special-shaped block is fixedly installed on the end of the top support rod, and a special-shaped groove for accommodating the special-shaped block is opened in the special-shaped plate.

[0012] Furthermore, an installation compartment is provided on the top of the vehicle body, a water tank is fixedly installed in the installation compartment, grille holes are provided at the corners of the dust removal channel, and the water outlet of the water tank corresponds to the grille holes, and an air pump for pressurizing the inside of the water tank is fixedly installed on one side of the water tank.

[0013] Furthermore, a third motor is fixedly installed in the installation bin, a screw is fixedly connected to the output end of the third motor, and the other end of the screw is rotatably installed at the air outlet, a cover plate is threadedly connected to the screw, and the cover plate is located below the dust removal assembly, a scraper for scraping the upper surface of the cover plate is fixedly installed at the air outlet, a discharge channel for discharging waste is opened below the air outlet, and the discharge channel is located on the conveying device.

[0014] Furthermore, a slideway is provided in the vehicle body and is located below the cover plate, and the bottom of the slideway is communicated with the discharge channel.

[0015] Furthermore, a plurality of spires are fixedly installed on the top of the dust removal component in the dust removal channel and cooperate with the cleaning components one by one.

[0016] Compared with the prior art, the beneficial effect achieved by the present invention is that the first motor in the present invention drives multiple filter plates to rotate at high speed, and the centrifugal force generated by the rotation can throw out the debris attached to the filter plates, thereby achieving the effect of cleaning the filter plates. This filter plate cleaning method can not only effectively extend the cleaning effect of the entire dust removal assembly, but also accelerate the air flow rate in the dust removal channel when the filter plates rotate to improve the cleaning efficiency of the entire dust removal assembly. In addition, the filter plates are cleaned alternately to ensure the continuity of the dust removal work in the dust removal channel, thereby effectively improving the working efficiency of the milling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 is a side sectional view of the present invention;

[0020] Figure 3 for Figure 2 A is an enlarged schematic diagram;

[0021] Figure 4 for Figure 2 A magnified schematic diagram of B;

[0022] Figure 5 An exploded view of the dust removal assembly of the present invention;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of middle C;

[0024] Figure 7 for Figure 5 A magnified schematic diagram of D in the middle;

[0025] Figure 8 for Figure 5 Middle E is an enlarged schematic diagram;

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of the dust removal component, the cleaning component and the adjustment component in the present invention;

[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the adjustment component in the present invention.

[0028] In the figure: 1, vehicle body; 11, installation chamber; 12, water tank; 13, grille hole; 14, slideway; 15, screw; 16, cover plate; 17, scraper; 18, discharge channel; 2, milling device; 3, conveying device; 4, dust removal channel; 41, air inlet; 42, air outlet; 43, spire; 5, dust removal assembly; 51, installation frame; 511, slot; 52, filter plate; 53, cross bar; 54, first synchronous wheel; 55, first motor; 56, first adjustment wheel; 5 7. First synchronous belt; 6. Centrifugal fan; 7. Cleaning assembly; 71. Rotating rod; 711. Empty slot; 712. Slide slot; 72. Cleaning brush head; 8. Adjusting assembly; 81. Adjusting plate; 811. Limiting protrusion; 82. Spring; 83. Special-shaped plate; 831. Special-shaped slot; 84. Several-shaped plate; 85. Cylinder; 86. Slide plate; 87. Support rod; 871. Special-shaped block; 88. Second synchronous wheel; 89. Second motor; 90. Second adjusting wheel; 91. Second synchronous belt. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figures 1 to 10 As shown, the present invention provides a dust removal device for a milling machine, comprising a body 1, a milling device 2 is provided at the bottom of the body 1, a conveying device 3 is provided at the front end of the milling device 2, a dust removal passage 4 is provided inside the front end of the body 1, an air inlet 41 and an air outlet 42 are provided at both ends of the dust removal passage 4, a dust removal component 5 is provided in the dust removal passage 4, and a centrifugal fan 6 for guiding the airflow direction in the dust removal passage 4 is provided on the outer side wall of the air outlet 42;

[0031] Further, the dust removal assembly 5 includes two sets of mounting frames 51 rotatably mounted in the dust removal passage 4, and the two sets of mounting frames 51 are alternately mounted in the dust removal passage 4, a filter plate 52 is fixedly mounted in each mounting frame 51, and a cross bar 53 is fixedly mounted at both ends of each mounting frame 51, and the cross bar 53 passes through the inner wall of the vehicle body 1, and driving components for driving the two sets of mounting frames 51 to rotate are fixedly mounted on both sides of the vehicle body 1;

[0032] The driving assembly includes a first motor 55 fixedly mounted on the side wall of the vehicle body 1, and the output end of the first motor 55 is sleeved with a first adjusting wheel 56 rotatably connected to the side wall of the vehicle body 1, and multiple cross bars 53 on one side of the same group of mounting frames 51 are sleeved with first synchronous wheels 54, and the first adjusting wheel 56 and the multiple first synchronous wheels 54 on the same side are connected to the same first synchronous belt 57, and the two first motors 55 drive the multiple filter plates 52 to rotate in the clockwise direction, and the two first motors 55 drive the two groups of mounting frames 51 to rotate alternately.

[0033] As a further illustration of the embodiments of the present invention, in the prior art, the filter assembly can filter the dust in the air duct to effectively purify the air environment in the air duct. During long-term filtering use, in order to improve the dust removal effect of the device, a spray component is often added to the air duct to absorb the dust by spraying water mist in the air to achieve the dust reduction effect. However, this kind of water-rich granular dust has strong viscosity and is more likely to clog the filter assembly, thereby greatly reducing the effective filtration time of the filter assembly. In order to ensure the dust removal effect of the dust removal device, the filter assembly needs to be continuously cleaned or replaced when the milling machine is in operation for a long time, which is extremely time-consuming and the process of disassembling the filter assembly is long. In order to ensure the safety of the operators, the milling operation needs to be interrupted, which reduces the overall milling operation efficiency. In this embodiment, the dust reduction effect is achieved by adding a dust removal component 5 to the dust removal channel 4. Specifically, the air inlet 41 is set above the junction of the milling device 2 and the conveying device 3, and the centrifugal fan 6 applies negative pressure suction to the dust removal channel 4. The dust generated by the milling device 2 when milling the ground and conveying materials is sucked into the dust removal channel 4 from the air inlet 41, and then filtered by multiple filter plates 52, the dust particles mixed in the air are separated from the air, and the filtered air is discharged from the air outlet 42 to achieve the dust removal effect. After the dust removal component 5 has been working for a long time, when a large amount of dust or large particles of debris adhere to the filter plate 52 and clog the filter holes, the first motor 55 drives the multiple filter plates 52 to rotate at a high speed, and the centrifugal force generated by the rotation will throw out the debris attached to the filter plate 52, so as to achieve the effect of cleaning the filter plate 52. At the same time, in order to ensure that the dust removal function in the dust removal channel 4 continues to work, the multiple filter plates 52 are driven by two first motors 55 respectively. When the multiple filter plates 52 driven by one of the first motors 55 rotate, the remaining filter plates 52 remain stationary to filter the air in the pipeline, thereby forming alternating filtering and cleaning work. This filter plate 52 cleaning method can not only effectively extend the cleaning effect of the entire dust removal component 5, but also accelerate the air flow rate in the dust removal channel 4 when the filter plate 52 rotates to improve the cleaning efficiency of the entire dust removal component 5. In addition, the filter plates 52 are alternately cleaned to ensure the continuity of the dust removal work in the dust removal channel 4, thereby effectively improving the working efficiency of the milling machine.

[0034] Furthermore, a cleaning assembly 7 is fixedly installed on the mounting frame 51, and the cleaning assembly 7 includes a rotating rod 71 rotatably installed at both ends of the mounting frame 51, and a cleaning brush head 72 is fixedly installed on the side wall of each rotating rod 71, and an adjustment assembly 8 for adjusting the fixed state of the cleaning assembly 7 is fixedly installed on the side walls on both sides of the vehicle body 1.

[0035] Furthermore, the adjustment assembly 8 includes an adjustment plate 81 slidably mounted at both ends of the rotating rod 71, and both ends of the rotating rod 71 are provided with an empty groove 711 for accommodating the adjustment plate 81, and a spring 82 is installed in the empty groove 711, and one end of the spring 82 is pressed against the end of the empty groove 711, and the other end is pressed against the side wall of the adjustment plate 81, and the adjustment plate 81 is fixedly mounted with a plurality of limiting protrusions 811 along the circumferential direction, and each of the rotating rods 71 ​​is provided with a plurality of sliding grooves 712 that match the limiting protrusions 811 one by one, and a special-shaped plate 83 is fixedly mounted on one side of the adjustment plate 81, and a slot 511 for accommodating the special-shaped plate 83 is provided in the mounting frame 51, and several shaped plates 84 are fixedly mounted on the side walls on both sides of the vehicle body 1, and the A cylinder 85 is fixedly installed on one side, and a slide plate 86 is fixedly connected to the output end of the cylinder 85. The slide plate 86 is slidably installed in the several-shaped plate 84, and a plurality of top support rods 87 are rotatably installed on one side of the several-shaped plate 84. A plurality of second synchronous wheels 88 corresponding to the first synchronous wheel 54 are sleeved on the top support rod 87. A second motor 89 is fixedly installed on the side walls at both ends of the vehicle body 1, and a second adjusting wheel 90 rotatably connected to the outer wall of the vehicle body 1 is sleeved on the output end of the second motor 89. The second adjusting wheel 90 and the plurality of second synchronous wheels 88 are connected to the same second synchronous belt 91. A special-shaped block 871 is fixedly installed on the end of the top support rod 87, and a special-shaped groove 831 for accommodating the special-shaped block 871 is provided in the special-shaped plate 83.

[0036] As a further illustration of the embodiment of the present invention, the special-shaped groove 831, the special-shaped block 871 and the special-shaped plate 83 in the present embodiment are all components of uncertain shape and can cooperate with each other, and are specifically rectangular in the present embodiment, and the working principle of the adjustment component 8 is: the cylinder 85 drives multiple supporting rods 87 to move along the axial direction of the rotating rod 71, so that the special-shaped block 871 at the end of the supporting rod 87 penetrates into the special-shaped groove 831, and continues to support the special-shaped plate 83, and the adjustment plate 81 is resisted by the supporting rod 87 to slide along the preset direction of the slide groove 712, and compresses the spring 82 to deform the spring 82, at this time the special-shaped plate 83 is separated from the groove 511, and then the second motor 89 is started to drive multiple supporting rods 87 to rotate The special-shaped block 871 contacts the special-shaped groove 831, so that the supporting rod 87 and the special-shaped plate 83 are temporarily locked. Therefore, after the supporting rod 87 drives the rotating rod 71 to rotate to the preset angle, the cylinder 85 is contracted to reset the components. The restoring elastic force generated by the deformation of the spring 82 supports the adjusting plate 81, so that the special-shaped plate 83 is again stuck in the slot 511, so that the cleaning brush head 72 is adjusted to the preset position. When the cleaning brush head 72 rotates with the mounting frame 51, the bristles of the cleaning brush head 72 can periodically clean the surface of the adjacent filter plate 52, thereby further removing the stubborn impurities remaining on the filter plate 52. After the cleaning brush head 72 completes its work, the above operation can be repeated to return the cleaning brush head 72 to its original position.

[0037] Furthermore, an installation compartment 11 is opened on the top of the vehicle body 1, and a water tank 12 is fixedly installed in the installation compartment 11. A grille hole 13 is opened at the corner of the dust removal channel 4, and the water outlet of the water tank 12 corresponds to the grille hole 13. An air pump for pressurizing the inside of the water tank 12 is fixedly installed on one side of the water tank 12.

[0038] As a further illustration of an embodiment of the present invention, the water outlet of the water tank 12 is aligned with the grille hole 13, and a valve for controlling the water outlet of the water tank 12 is provided at the water outlet. The water in the water tank 12 is pressurized by an air pump (not shown in the figure) to spray out from the grille hole 13 to form water mist, and the water mist enters the dust removal channel 4, thereby increasing the humidity of the dust particles in the air, making the dust particles in the air less likely to float and fall with gravity, thereby achieving the effect of dust reduction.

[0039] Furthermore, a third motor is fixedly installed in the installation bin 11, a screw 15 is fixedly connected to the output end of the third motor, and the other end of the screw 15 is rotatably installed at the air outlet 42, a cover plate 16 is threadedly connected to the screw 15, and the cover plate 16 is located below the dust removal assembly 5, and a scraper 17 for scraping the upper surface of the cover plate 16 is fixedly installed at the air outlet 42, and a discharge channel 18 for discharging waste is opened below the air outlet 42, and the discharge channel 18 is located on the conveying device 3.

[0040] Furthermore, a slideway 14 is provided in the vehicle body 1 and is located below the cover plate 16 , and the bottom of the slideway 14 is communicated with the discharge channel 18 .

[0041] As a further explanation of the embodiment of the present invention, in this embodiment, during the long-term use of the dust removal component 5, some debris thrown off the filter plate 52 will fall onto the cover plate 16, so it is necessary to clean the cover plate 16 to prevent the debris from piling up too high. Specifically, the screw 15 is driven to rotate by a third motor (not shown in the figure) so that the cover plate 16 threadedly connected to the screw 15 slides toward the air outlet 42. When the cover plate 16 passes under the scraper 17, the bottom of the scraper 17 rubs against the top of the cover plate 16, so that The debris attached to the cover plate 16 is scraped off until all the scraped debris falls from the discharge channel 18 onto the conveying device 3. Some debris will be scraped off when the cover plate 16 passes through the bottom of multiple mounting frames 51 and remain in the vehicle body 1. Therefore, a slide 14 is opened in the vehicle body 1, and the top of the slide 14 is close to the end of the cover plate 16. When the cover plate 16 is returned to its place, the debris retained in the vehicle body 1 will be pushed into the slide 14 by the cover plate 16, and slide toward the discharge channel 18 under the traction of gravity until it falls onto the conveying device 3.

[0042] Furthermore, a plurality of spires 43 are fixedly mounted on the top of the dust removal assembly 5 in the dust removal passage 4 and are matched one by one with the cleaning assembly 7 .

[0043] As a further explanation of an embodiment of the present invention, in this embodiment, during the cleaning process, the dust removal component 5 will not only throw some debris onto the cover plate 16, but also throw some debris onto the top of the dust removal channel 4. In order to avoid excessive debris sticking to the top of the dust removal channel 4, a plurality of spires 43 are laid on the top of the dust removal channel 4. When the cleaning brush head 72 rotates to clean, it sweeps over the surface of the spires 43, that is, the cleaning brush head 72 can brush off the debris sticking on the surface of the spires 43 when working, thereby maintaining the cleanliness of the dust removal channel 4.

[0044] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

Claims

1. A dust removal device for a milling machine, comprising a body (1), characterized in that: A milling device (2) is provided at the bottom of the vehicle body (1), a conveying device (3) is provided at the front end of the milling device (2), a dust removal passage (4) is provided inside the front end of the vehicle body (1), an air inlet (41) and an air outlet (42) are provided at both ends of the dust removal passage (4), a dust removal assembly (5) is provided in the dust removal passage (4), and a centrifugal fan (6) for guiding the flow direction of air in the dust removal passage (4) is provided on the outer side wall of the air outlet (42); The dust removal assembly (5) comprises two groups of mounting frames (51) rotatably mounted in the dust removal passage (4), and the two groups of mounting frames (51) are alternately mounted in the dust removal passage (4), a filter plate (52) is fixedly mounted in each of the mounting frames (51), cross bars (53) are fixedly mounted at both ends of each of the mounting frames (51), and the cross bars (53) penetrate the inner wall of the vehicle body (1), and driving assemblies for respectively driving the two groups of mounting frames (51) to rotate are fixedly mounted on both sides of the vehicle body (1); The driving assembly comprises a first motor (55) fixedly mounted on the side wall of the vehicle body (1), and the output end of each of the first motors (55) is sleeved with a first adjusting wheel (56) rotatably connected to the side wall of the vehicle body (1), and a first synchronous wheel (54) is sleeved on a cross bar (53) on one side of the same group of the mounting frames (51), and the first adjusting wheel (56) and a plurality of the first synchronous wheels (54) located on the same side are connected to a first synchronous belt (57), and the two first motors (55) drive the plurality of filter plates (52) to rotate in a clockwise direction, and the two first motors (55) drive the two groups of the mounting frames (51) to rotate alternately; A cleaning assembly (7) is fixedly mounted on each of the mounting frames (51), the cleaning assembly (7) comprising rotating rods (71) rotatably mounted on both ends of the mounting frame (51), a cleaning brush head (72) being fixedly mounted on the side wall of each of the rotating rods (71), and an adjusting assembly (8) for adjusting the fixed state of the cleaning assembly (7) being fixedly mounted on the side walls of both sides of the vehicle body (1); The adjustment assembly (8) comprises an adjustment plate (81) slidably mounted on both ends of a rotating rod (71), both ends of the rotating rod (71) are provided with an empty slot (711) for accommodating the adjustment plate (81), a spring (82) is installed in each of the empty slots (711), one end of the spring (82) is pressed against the end of the empty slot (711), and the other end is pressed against the side wall of the adjustment plate (81), the adjustment plate (81) is fixedly mounted with a plurality of limiting protrusions (811) along the circumferential direction, both ends of each rotating rod (71) are provided with a plurality of sliding slots (712) which are matched one by one with the limiting protrusions (811), one side of the adjustment plate (81) is fixedly mounted with a special-shaped plate (83), the mounting frame (51) is provided with an open slot (511) for accommodating the special-shaped plate (83), and the side walls on both sides of the vehicle body (1) are fixedly mounted with several-shaped plates (84), the several-shaped plates (84) A cylinder (85) is fixedly mounted on one side, and a slide plate (86) is fixedly connected to the output end of the cylinder (85). The slide plate (86) is slidably mounted in the several-shaped plate (84). A plurality of top support rods (87) are rotatably mounted on one side of the several-shaped plate (84). A plurality of second synchronous wheels (88) corresponding to the first synchronous wheels (54) are sleeved on the top support rods (87). Second motors (89) are fixedly mounted on the side walls at both ends of the vehicle body (1). A second regulating wheel (90) rotatably connected to the outer wall of the vehicle body (1) is sleeved on the output end of the second motor (89). The second regulating wheel (90) and the plurality of second synchronous wheels (88) are commonly connected to the same second synchronous belt (91). A special-shaped block (871) is fixedly mounted on the end of the top support rod (87). A special-shaped groove (831) for accommodating the special-shaped block (871) is provided in the special-shaped plate (83).

2. The dust removal device for a milling machine according to claim 1, characterized in that: The top of the vehicle body (1) is provided with an installation compartment (11), a water tank (12) is fixedly installed in the installation compartment (11), a grille hole (13) is provided at a corner of the dust removal passage (4), and a water outlet of the water tank (12) corresponds to the grille hole (13), and an air pump for pressurizing the interior of the water tank (12) is fixedly installed on one side of the water tank (12).

3. The dust removal device for a milling machine according to claim 2, characterized in that: A third motor is fixedly installed in the installation bin (11), a screw (15) is fixedly connected to the output end of the third motor, and the other end of the screw (15) is rotatably installed at the air outlet (42), a cover plate (16) is threadedly connected to the screw (15), and the cover plate (16) is located below the dust removal component (5), a scraper (17) for scraping the upper surface of the cover plate (16) is fixedly installed at the air outlet (42), and a discharge channel (18) for discharging waste is provided below the air outlet (42), and the discharge channel (18) is located on the conveying device (3).

4. The dust removal device for a milling machine according to claim 3, characterized in that: The vehicle body (1) is provided with a slideway (14) located below the cover plate (16), and the bottom of the slideway (14) is in communication with the discharge channel (18).

5. The dust removal device for a milling machine according to claim 1, characterized in that: A plurality of spires (43) that match the cleaning components (7) one by one are fixedly mounted on the top of the dust removal component (5) in the dust removal passage (4).

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