Crack welding device for road maintenance

Abstract

The utility model discloses a crack welding device for road maintenance, which relates to the field of road maintenance, and comprises a mobile vehicle, the mobile vehicle comprises a frame, the front side of the frame is rotatably connected with a turning shaft tube, the lower end of the turning shaft tube is connected with a fixed wheel carrier, the fixed wheel carrier is rotatably connected with a guide wheel, and the top of the frame is fixedly provided with a support frame; a glue melting mechanism is arranged on the supporting frame and comprises a glue melting barrel, a glue discharging pipe is fixed to the bottom of the glue melting barrel, the glue discharging pipe is rotationally connected with the turning shaft pipe, an observation lens cone is fixed to one side of the frame, a plurality of reflectors are fixed in the observation lens cone, a caulking mechanism is arranged on the fixed wheel frame, and a dust collection mechanism is arranged on one side of the frame. The crack filling device has the beneficial effects that the position and the advancing direction of the crack filling glue pool can be rapidly adjusted through the arrangement of the turning shaft tube, the fixed wheel frame and the guide wheel, the relative position of the fixed wheel frame and a ground crack can be observed through the arrangement of the observation lens cone and the multiple reflectors, and operation of workers is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to road maintenance field especially a kind of crack fusion bonding device for road maintenance. BACKGROUND

[0002] Road crack refers to a series of cracks that are interconnected under repeated traffic load, which are caused by fatigue failure of asphalt surface or stabilized base. Road cracks need to be repaired in time to avoid the gradual infiltration of rainwater or snowwater on the road surface, which leads to an increase in water content of the road surface structure or soil on both sides of the crack, and accelerates the destruction of the road surface under the action of traffic load. Therefore, a crack repair machine is needed.

[0003] The commonly used method for road cracks is the slotting and filling method. A road slotting machine is used to open a uniform groove with a width of 10-20 mm and a depth of 10-30 mm along the road crack. Then, an industrial vacuum cleaner is used to suck away the debris in the groove. After cleaning the groove, a crack filling machine is used to inject molten asphalt glue into the groove.

[0004] For example, the patent document with publication number CN221989055U discloses a crack fusion bonding device for road maintenance, which belongs to the technical field of fusion bonding devices. It specifically includes a base and a mixing box. The upper surface of the base is fixedly connected with the mixing box. The upper surface of the mixing box is fixedly connected with a first motor. The output end of the first motor is fixedly connected with a rotating rod. The outer surface of the rotating rod is fixedly connected with a stirring rod. The inner side wall of the mixing box is fixedly connected with a partition. The partition is provided with a discharge pipe on one side. The crack fusion bonding device for road maintenance stirs the materials in the mixing box to avoid accumulation by the first motor and the stirring rod. Then, the second motor and the grinding piece are set up. The grinding piece grinds the surface by starting the lifting of the hydraulic rod. The materials enter the material box and are transported by the third motor and the conveying blade, thereby achieving the grinding effect and purpose. In the prior art, molten asphalt glue is mainly used to fill the pre-opened groove to achieve the repair and fusion of road cracks. The existing small car type crack filling machine is pushed along the crack direction by the construction personnel while observing the crack position. However, due to the structure of the crack filling machine, it is not easy to operate. SUMMARY

[0005] The purpose of the utility model is to provide a crack fusion bonding device for road maintenance to solve the above problems.

[0006] The utility model achieves the above purpose by the following technical solutions:

[0007] The utility model provides a kind of road maintenance crack fusion device, including mobile car, mobile car includes frame, the bottom of rear side of frame is equipped with symmetrical universal wheel, the top of rear side of frame is rotatably connected with steering shaft, the lower end of steering shaft is fixedly connected with first sprocket, the front side of frame is rotatably connected with direction-changing shaft tube, the top of direction-changing shaft tube is fixedly connected with second sprocket, second sprocket is connected with first sprocket by chain, the lower end of direction-changing shaft tube is fixedly connected with fixed wheel frame, the both sides of fixed wheel frame are rotatably connected with guide wheel, the top of frame is fixedly connected with support frame, support frame is equipped with glue melting mechanism, glue melting mechanism includes with support frame fixed connection's glue melting bucket, the bottom one side of glue melting bucket is fixedly connected with glue discharge pipe, glue discharge pipe is rotatably connected with direction-changing shaft tube, one side of frame is fixedly connected with observation mirror barrel, the top of observation mirror barrel is arranged above fixed wheel frame, a plurality of reflecting mirrors are fixedly connected in observation mirror barrel, the other end of observation mirror barrel is arranged above steering shaft, filling mechanism is provided on fixed wheel frame, dust absorption mechanism is provided on the side of frame away from observation mirror barrel.

[0008] Preferably, the top of the steering shaft is fixedly connected with a handle, the outer wall of the upper end of the observation mirror barrel is fixedly connected with a sun visor, and the lower end of the observation mirror barrel is fixedly connected with a plurality of illuminating lamps.

[0009] Preferably, a plurality of heating wires are fixedly connected in the glue melting bucket, a bucket cover is fixedly connected to the top of the glue melting bucket, a fan-shaped feed inlet is formed in the bucket cover, a rotating baffle is rotatably connected to the bucket cover, a stirring motor is fixedly connected to the middle of the bucket cover, a stirring shaft is fixedly connected to the output end of the stirring motor, and a plurality of stirring paddles are fixedly connected to the stirring shaft.

[0010] Preferably, the filling mechanism includes a filling glue pool arranged below the direction-changing shaft tube, first sliding rods are fixedly connected to the both sides of the filling glue pool, the first sliding rods are slidingly connected to the fixed wheel frame, an annular support is fixedly connected to the top of the fixed wheel frame, springs are sleeved on the upper ends of the first sliding rods, the top of each spring is fixedly connected to the annular support, the other end of each spring is fixedly connected to the fixed wheel frame, second sliding rods are slidingly connected to the frame, the second sliding rods are symmetrically arranged, a traction support is fixedly connected to the top of each second sliding rod, a rolling ball is rotatably connected to the lower end of each second sliding rod, the bottom of each second sliding rod can be in contact with the annular support, a closing plate is rotatably connected to the bottom of the direction-changing shaft tube, sliding blocks are symmetrically arranged and rotatably connected to the both sides of the closing plate, and the sliding blocks are slidingly connected to the side walls of the filling glue pool.

[0011] Preferably, traction ropes are symmetrically arranged and fixedly connected to the both sides of the traction support, the traction ropes pass through the frame, a lifting plate is fixedly connected to the other end of each traction rope, fixed pipes are fixedly connected to the rear side of the frame, the top of each fixed pipe is slidingly connected to the lifting plate, a rotating plate is rotatably connected to the top of the lifting plate, traction ears are symmetrically arranged and fixedly connected to the top of the rotating plate, and the traction ears are symmetrically arranged above and below the handle.

[0012] Preferably, the dust collection mechanism comprises a dust collector assembly fixedly connected to the support frame, a dust collection pipe is arranged on one side of the dust collector assembly, and a dust collection hopper is fixedly connected to the other end of the dust collection pipe and arranged in front of the fixed wheel frame.

[0013] The beneficial effects are that:

[0014] 1. By arranging the direction-changing shaft pipe, the fixed wheel frame and the guide wheel, the position and the advancing direction of the crack filling glue pool can be quickly adjusted, so that the advancing direction of the adjusting device is quickly adjusted to move, and by arranging the observation barrel and the plurality of reflecting mirrors, the relative position of the fixed wheel frame and the ground crack can be observed, thereby facilitating the adjustment of the staff.

[0015] 2. By arranging the crack filling mechanism, the staff can adjust the position of the crack filling glue pool by rotating the traction lug on the turning plate when performing crack filling work, and after the crack filling glue pool is lowered to contact the ground, the closing plate is opened, and the asphalt glue can fall into the crack filling glue pool to perform crack filling work, so that whether the asphalt glue falls during the advancing of the pushing device can be controlled.

[0016] The additional technical features and advantages of the present application will be more apparent in the following description, or can be understood through the specific practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0018] Figure 1 is a perspective view of the crack fusion device for road maintenance according to the present application;

[0019] Figure 2 is a schematic view of the relative positions of the first sprocket and the second sprocket of the crack fusion device for road maintenance according to the present application;

[0020] Figure 3 is a left side sectional view of the observation barrel of the crack fusion device for road maintenance according to the present application;

[0021] Figure 4 is a front view of the crack filling mechanism of the crack fusion device for road maintenance according to the present application;

[0022] Figure 5 is a schematic view of the relative positions of the traction rope and the frame of the crack fusion device for road maintenance according to the present application;

[0023] Figure 6Is the relative position schematic view of the closing plate and the direction-changing shaft pipe of the crack fusion welding device for road maintenance of the utility model;

[0024] Figure 7 Is the relative position schematic view of the glue melting mechanism of the crack fusion welding device for road maintenance of the utility model;

[0025] Figure 8 Is the rear side sectional view of the glue melting mechanism of the crack fusion welding device for road maintenance of the utility model;

[0026] Figure 9 Is the dust suction mechanism of the crack fusion welding device for road maintenance of the utility model.

[0027] The sign of the reference numerals is as follows:

[0028] 101, frame; 102, universal wheel; 103, support frame; 104, steering shaft; 105, handle; 106, first sprocket; 107, chain; 108, second sprocket; 109, direction-changing shaft pipe; 110, fixed wheel frame; 111, guide wheel; 112, observation mirror tube; 113, sun visor; 114, reflector; 115, illuminating lamp; 201, glue melting bucket; 202, bucket cover; 203, stirring motor; 204, rotating baffle; 205, feeding port; 206, stirring shaft; 207, stirring paddle; 208, heating wire; 209, glue discharging pipe; 301, crack filling glue pool; 302, first sliding rod; 303, spring; 304, annular support; 305, second sliding rod; 306, traction support; 307, traction rope; 308, fixed pipe; 309, lifting plate; 310, rotating plate; 311, closing plate; 312, sliding block; 401, dust collector assembly; 402, dust suction pipe; 403, dust suction hopper. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0030] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] The utility model will be further described below with reference to the drawings:

[0032] As Figures 1-9 shown, a kind of road maintenance crack fusion device, including mobile car, mobile car includes frame 101, the bottom of rear side of frame 101 is equipped with symmetrical universal wheel 102, the top bearing of rear side of frame 101 is pivotally connected with steering shaft 104, the lower end of steering shaft 104 is keyed with first sprocket 106, the front side of frame 101 is pivotally connected with direction-changing shaft tube 109, the top of direction-changing shaft tube 109 is keyed with second sprocket 108, second sprocket 108 is connected with first sprocket 106 by chain 107, the lower end of direction-changing shaft tube 109 is fixedly connected with fixed wheel frame 110, the both sides of fixed wheel frame 110 are pivotally connected with guide wheel 111, the top of frame 101 is fixedly connected with support frame 103, support frame 103 is equipped with glue melting mechanism, glue melting mechanism includes glue melting barrel 201 with the fixed connection of support frame 103, the bottom one side of glue melting barrel 201 is fixedly connected with glue discharge pipe 209, glue discharge pipe 209 is pivotally connected with direction-changing shaft tube 109, one side of frame 101 is fixedly connected with observation mirror barrel 112, the one end of observation mirror barrel 112 is set above fixed wheel frame 110, the inside of observation mirror barrel 112 is fixedly connected with several mirrors 114, the other end of observation mirror barrel 112 is set above and in front of steering shaft 104, fixed wheel frame 110 is equipped with filling mechanism, the side of frame 101 away from observation mirror barrel 112 is equipped with dust collection mechanism, the top of steering shaft 104 is fixedly connected with handle 105, the outer wall of the upper end of observation mirror barrel 112 is fixedly connected with sun visor 113, the lower end of observation mirror barrel 112 is fixedly connected with several illuminating lamps 115, staff holds handle 105 to be able to push the device to move, the setting of several mirrors 114 can make staff observe the relative position of fixed wheel frame 110 and ground crack, the setting of illuminating lamp 115 and sun visor 113 can ensure that staff can clearly watch, staff rotates handle 105, handle 105 drives steering shaft 104 to rotate, steering shaft 104 drives first sprocket 106 to rotate, first sprocket 106 drives chain 107 to rotate, chain 107 drives second sprocket 108 to rotate, second sprocket 108 drives direction-changing shaft tube 109 to rotate, direction-changing shaft tube 109 drives fixed wheel frame 110 to rotate, fixed wheel frame 110 drives guide wheel 111 to change advancing direction, so it can guarantee that filling glue pool 301 advances with the direction of ground crack.

[0033] A plurality of heating wires 208 are fixedly connected in the glue melting barrel 201, a barrel cover 202 is fixedly connected on the top of the glue melting barrel 201, a fan-shaped feeding port 205 is formed in the barrel cover 202, a rotating baffle 204 is rotatably connected on the barrel cover 202, a stirring motor 203 is fixedly connected in the middle of the barrel cover 202, a stirring shaft 206 is fixedly connected at the output end of the stirring motor 203, and a plurality of stirring paddles 207 are fixedly connected on the stirring shaft 206; before the joint filling work is performed, the staff member pours the asphalt glue in blocks into the glue melting barrel 201 from the feeding port 205, rotates the rotating baffle 204 to close the feeding port 205, the heating wires 208 are electrified to generate heat to melt the asphalt glue, the stirring motor 203 drives the stirring shaft 206 to rotate, the stirring shaft 206 drives the stirring paddles 207 to rotate, and the stirring paddles 207 can stir the asphalt glue to keep it in a flowing molten state.

[0034] The gap filling mechanism comprises a gap filling glue pool 301 arranged below the direction changing shaft pipe 109, first sliding rods 302 fixedly connected on both sides of the gap filling glue pool 301, the first sliding rods 302 being in sliding connection with the fixed wheel frame 110, an annular support 304 fixedly connected on the top of the fixed wheel frame 110, springs 303 sleeved on the upper ends of the first sliding rods 302, the springs 303 being fixedly connected with the annular support 304 on the top, the other ends of the springs 303 being fixedly connected with the fixed wheel frame 110, second sliding rods 305 symmetrically arranged in sliding connection with the frame 101, a traction support 306 fixedly connected on the top of the second sliding rods 305, balls in rotational connection with the lower ends of the second sliding rods 305, the balls being arranged to ensure that the rotational performance of the second sliding rods 305 and the annular support 304 is ensured not to interfere with the rotation of the lifting plate 309, the bottom of the second sliding rods 305 being capable of contacting the annular support 304, a closing plate 311 in rotational connection with the bottom of the direction changing shaft pipe 109, sliding blocks 312 symmetrically arranged in rotational connection with both sides of the closing plate 311, the sliding blocks 312 being in sliding connection with the side walls of the gap filling glue pool 301, traction ropes 307 symmetrically arranged and fixedly connected on both sides of the traction support 306, the traction ropes 307 penetrating through the frame 101, the other ends of the traction ropes 307 being fixedly connected with the lifting plate 309, fixed pipes 308 symmetrically arranged and fixedly connected on the rear side of the frame 101, the fixed pipes 308 being in sliding connection with the lifting plate 309 on the top, a rotating plate 310 in rotational connection with the top of the lifting plate 309, the rotational connection of the rotating plate 310 and the lifting plate 309 ensuring that interference is not caused when the handle 105 is rotated, traction ears symmetrically arranged and fixedly connected on the top of the rotating plate 310, the traction ears being symmetrically arranged above and below the handle 105, a worker moves the device to a crack position, the worker simultaneously grips the handle 105 and the traction ears on the rotating plate 310, the rotating plate 310 moves upward, the rotating plate 310 drives the lifting plate 309 to ascend along the fixed pipes 308 in the axial direction, the lifting plate 309 drives the traction ropes 307 to move, the traction ropes 307 drive the traction support 306 to descend, the traction support 306 drives the second sliding rods 305 to descend, the second sliding rods 305 press the annular support 304 to descend, at this time, the springs 303 are compressed, the annular support 304 drives the first sliding rods 302 to descend, the first sliding rods 302 drive the gap filling glue pool 301 to tightly contact the ground crack, the gap filling glue pool 301 drives the closing plate 311 to open by descending, asphalt glue flows out from the glue discharge pipe 209 and falls into the gap filling glue pool 301, since the gap filling glue pool 301 has contacted the ground, the asphalt glue accumulates in the gap filling glue pool 301, and then the asphalt glue fills the crack below the gap filling glue pool 301, the device continuously moves, and the asphalt glue can fill and repair the crack.

[0035] The dust collection mechanism comprises a dust collector assembly 401 fixedly connected to the support frame 103, one side of the dust collector assembly 401 is provided with a dust collection pipe 402, the other end of the dust collection pipe 402 is fixedly connected with a dust collection hopper 403, and the dust collection hopper 403 is arranged in front of the fixed wheel frame 110. When the crack filling work is performed, the dust collector assembly 401 is started to suck the dust on the crack into the dust collector assembly 401 through the dust collection hopper 403 and the dust collection pipe 402.

[0036] Working principle: Before the crack filling work is performed, the staff pours the asphalt glue in blocks into the melting barrel 201 from the feeding port 205, rotates the rotating baffle 204 to close the feeding port 205, the heating wire 208 is powered to generate heat to melt the asphalt glue, the stirring motor 203 drives the stirring shaft 206 to rotate, the stirring shaft 206 drives the stirring paddle 207 to rotate, the stirring paddle 207 can stir the asphalt glue to keep it in a flowing molten state, the staff can push the device by holding the handle 105, the staff can observe the relative position of the fixed wheel frame 110 and the ground crack through the arrangement of the plurality of reflecting mirrors 114, the staff can clearly watch through the arrangement of the illuminating lamp 115 and the sunshade 113, the staff rotates the handle 105, the handle 105 drives the steering shaft 104 to rotate, the steering shaft 104 drives the first sprocket 106 to rotate, the first sprocket 106 drives the chain 107 to rotate, the chain 107 drives the second sprocket 108 to rotate, the second sprocket 108 drives the direction-changing shaft pipe 109 to rotate, the direction-changing shaft pipe 109 drives the fixed wheel frame 110 to rotate, the fixed wheel frame 110 drives the guide wheel 111 to change the advancing direction, so that the crack filling glue pool 301 can advance along the direction of the ground crack, the staff moves the device to the crack position, the staff simultaneously clenches the handle 105 and the traction ear on the rotating plate 310, the rotating plate 310 moves upward, the rotating plate 310 drives the lifting plate 309 to move upward along the fixed pipe 308, the lifting plate 309 drives the traction rope 307 to move, the traction rope 307 drives the traction support 306 to descend, the traction support 306 drives the second sliding rod 305 to descend, the second sliding rod 305 presses the annular support 304 to descend, at this time, the spring 303 is compressed, the annular support 304 drives the first sliding rod 302 to descend, the first sliding rod 302 drives the crack filling glue pool 301 to tightly contact the ground crack, the crack filling glue pool 301 drives the closing plate 311 to open, the asphalt glue flows out of the glue discharging pipe 209 and falls into the crack filling glue pool 301, since the crack filling glue pool 301 has contacted the ground, the asphalt glue accumulates in the crack filling glue pool 301, and then the asphalt glue fills the crack below the crack filling glue pool 301, the device continuously moves, and the asphalt glue can fill and repair the crack. When the crack filling work is performed, the dust collector assembly 401 is started to suck the dust on the crack into the dust collector assembly 401 through the dust collection hopper 403 and the dust collection pipe 402.

[0037] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A crack meltback apparatus for road maintenance comprising a mobile vehicle, characterized by: The mobile vehicle comprises a vehicle frame (101), universal wheels (102) symmetrically arranged are mounted on the bottom of the rear side of the vehicle frame (101), a steering shaft (104) is rotatably connected to the top of the rear side of the vehicle frame (101), a first chain wheel (106) is fixedly connected to the lower end of the steering shaft (104), a direction-changing shaft tube (109) is rotatably connected to the front side of the vehicle frame (101), a second chain wheel (108) is fixedly connected to the top of the direction-changing shaft tube (109), the second chain wheel (108) is connected to the first chain wheel (106) through a chain (107), a fixed wheel frame (110) is fixedly connected to the lower end of the direction-changing shaft tube (109), guide wheels (111) are rotatably connected to the two sides of the fixed wheel frame (110), a support frame (103) is fixedly connected to the top of the vehicle frame (101), a glue melting mechanism is arranged on the support frame (103), the glue melting mechanism comprises a glue melting barrel (201) fixedly connected to the support frame (103), a glue discharging pipe (209) is fixedly connected to one side of the bottom of the glue melting barrel (201), the glue discharging pipe (209) is rotatably connected to the direction-changing shaft tube (109), an observation mirror tube (112) is fixedly connected to one side of the vehicle frame (101), the observation mirror tube (112) is arranged above the fixed wheel frame (110), a plurality of reflecting mirrors (114) are fixedly connected to the observation mirror tube (112), the other end of the observation mirror tube (112) is arranged above and in front of the steering shaft (104), a caulking mechanism is arranged on the fixed wheel frame (110), and a dust suction mechanism is arranged on the side of the vehicle frame (101) away from the observation mirror tube (112).

2. The apparatus of claim 1, wherein: A handle (105) is fixedly connected to the top of the steering shaft (104), a sunshade (113) is fixedly connected to the outer wall of the upper end of the observation mirror tube (112), and a plurality of illuminating lamps (115) are fixedly connected to the lower end of the observation mirror tube (112).

3. The apparatus of claim 1, wherein: A plurality of heating wires (208) are fixedly connected to the inside of the glue melting barrel (201), a barrel cover (202) is fixedly connected to the top of the glue melting barrel (201), a fan-shaped feeding port (205) is formed in the barrel cover (202), a rotating baffle (204) is rotatably connected to the barrel cover (202), a stirring motor (203) is fixedly connected to the middle of the barrel cover (202), a stirring shaft (206) is fixedly connected to the output end of the stirring motor (203), and a plurality of stirring paddles (207) are fixedly connected to the stirring shaft (206).

4. The apparatus of claim 2, wherein: The gap filling mechanism comprises a gap filling glue pool (301) arranged below the direction changing shaft pipe (109), first sliding rods (302) fixedly connected on both sides of the gap filling glue pool (301), the first sliding rods (302) being in sliding connection with the fixed wheel frame (110), an annular support (304) fixedly connected on the top of the fixed wheel frame (110), springs (303) sleeved on the upper ends of the first sliding rods (302), the springs (303) being fixedly connected with the annular support (304) on the top, the other ends of the springs (303) being fixedly connected with the fixed wheel frame (110), second sliding rods (305) symmetrically arranged and in sliding connection with the frame (101), traction supports (306) fixedly connected on the top of the second sliding rods (305), rolling balls rotatably connected with the lower ends of the second sliding rods (305), the bottoms of the second sliding rods (305) being capable of being in contact with the annular support (304), a closing plate (311) rotatably connected with the bottom of the direction changing shaft pipe (109), and sliding blocks (312) rotatably connected with both sides of the closing plate (311) and in sliding connection with the side walls of the gap filling glue pool (301).

5. A road maintenance crack melting apparatus according to claim 4, characterized in that: Symmetrically arranged traction ropes (307) are fixedly connected on both sides of the traction support (306), the traction ropes (307) penetrating through the frame (101), a lifting plate (309) fixedly connected with the other ends of the traction ropes (307), symmetrically arranged fixed pipes (308) fixedly connected with the rear side of the frame (101), the fixed pipes (308) being in sliding connection with the lifting plate (309) on the top, a rotating plate (310) rotatably connected with the top of the lifting plate (309), symmetrically arranged traction ears fixedly connected with the top of the rotating plate (310), and the traction ears being symmetrically arranged above and below the handle (105).

6. The apparatus of claim 1, wherein: The dust suction mechanism comprises a dust collector assembly (401) fixedly connected with the support frame (103), a dust suction pipe (402) arranged on one side of the dust collector assembly (401), a dust suction hopper (403) fixedly connected with the other end of the dust suction pipe (402), and the dust suction hopper (403) being arranged in front of the fixed wheel frame (110).

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