A roadbed backfill auxiliary equipment

Abstract

The present invention belongs to the technical field of road construction, and in particular discloses a roadbed backfilling auxiliary equipment, including a material leveling box, a storage cavity is provided on the inner bottom surface of the material leveling box, a hopper is arranged above the material leveling box, the bottom of the hopper is connected to the top of the material leveling box, a fixed shaft is arranged between the inner walls on both sides of the material leveling box, a material leveling mechanism is arranged on the outer surface of the fixed shaft, a cleaning component is arranged inside the fixed shaft, and bottom plates are fixed on both sides of the material leveling box; the present invention is provided with a material return mechanism, a material leveling mechanism, a cleaning component and an induction filling mechanism, so that when laying sand and gravel particles on the roadbed after compaction, the sand and gravel particles can be accurately filled into the concave area on the corresponding roadbed, and the sand and gravel can be evenly distributed before filling and unloading, so as to prevent the sand and gravel from being unevenly distributed during the unloading process, thereby resulting in no sand and gravel filling on part of the roadbed during the filling of the roadbed.

Description

Technical Field

[0001] The invention relates to the technical field of road construction, and in particular to roadbed backfill auxiliary equipment. Background Art

[0002] The roadbed consists of embankments built with natural soil and stone and cuttings dug out of natural strata. It directly supports the road and bears the load of vehicles passing through the road. It is the main body of the roadbed. During the construction of urban roads, the roadbed needs to be compacted, and then additional filling is required to ensure the flatness of the roadbed.

[0003] The existing backfill equipment lays the filler on the roadbed filling working surface, but in the process of laying the filler, uneven laying is prone to occur. As a result, during the leveling and compacting process of the roadbed, the area with less filler laying is prone to be lower than the elevation. Therefore, backfilling and supplementing the filler in advance can ensure the flatness of the entire roadbed after compaction. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a roadbed backfill auxiliary device, the purpose of which is to supplement fillers to a part of the roadbed surface area and improve the flatness of the roadbed.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a roadbed backfill auxiliary device, comprising a screed box, a storage cavity is provided on the inner bottom surface of the screed box, a hopper is arranged above the screed box, the bottom of the hopper is communicated with the top of the screed box, a fixed shaft is arranged between the inner walls of both sides of the screed box, a screed mechanism is arranged on the outer surface of the fixed shaft, a cleaning component is arranged inside the fixed shaft, bottom plates are fixed on both sides of the screed box, multiple tires are arranged on the two bottom plates, and multiple induction filling mechanisms are equidistantly arranged at the bottom of the screed box;

[0006] Temporary storage boxes are arranged on both sides of the material scrambling box, and side openings are opened on both sides of the material scrambling box. The two side openings are correspondingly penetrated into the interior of the temporary storage boxes, and a material return mechanism is arranged between the hopper and the two temporary storage boxes.

[0007] Preferably, the material return mechanism includes two conveying racks, the bottoms of the two conveying racks extend to the inner bottom surface of the temporary storage box, the tops of the two conveying racks extend to the inside of the hopper, a plurality of conveying rollers are arranged between the inner walls on both sides of the two conveying racks, a conveyor belt is arranged between the outer surfaces of the plurality of conveying rollers located inside the same conveying rack, and a connecting shaft is connected between the conveying rollers inside the two conveying racks and close to the hopper side.

[0008] Preferably, a base is fixed on one side of the material mixing box, a motor is arranged on the base, a pulley is fixed to the output end of the motor, a transmission gear is arranged at one end of the pulley, a docking port is opened inside one end of the fixed shaft, the transmission gear is located inside the docking port, and a belt is arranged between the pulley and one of the conveying rollers.

[0009] Preferably, the material leveling mechanism includes a spiral blade, an inner gear ring is rotatably embedded in the outer surface of the fixed shaft near one end edge, one side of the inner gear ring is rotatably engaged with an inner wall of one side of the material leveling box, the inner side of the inner gear ring extends to the inside of the docking interface, the inner gear ring and the transmission gear are meshed with each other, and a plurality of guide rods are equidistantly fixed on the outer surface of one side of the inner gear ring along the circumferential direction, a slip ring is fixed between one end of the plurality of guide rods, and the slip ring is rotatably engaged with the inner wall of the other side of the material leveling box.

[0010] Preferably, the outer surfaces of the multiple guide rods are slidably fitted with guide tubes, three sliding rings are arranged between the outer surfaces of the multiple guide tubes, the three sliding rings are respectively located at both ends and the middle part of the multiple guide tubes, and the spiral blades are fixed between the outer surfaces of the multiple guide tubes.

[0011] Preferably, a guide cursor is rotatably connected to the inner side of the sliding ring located in the middle part, a first guide channel is spirally opened on the outer surface of the fixed shaft, and a second guide channel is spirally opened on the outer surface of the fixed shaft, the first guide channel and the second guide channel have opposite rotation directions, and both ends of the first guide channel and the second guide channel are connected to each other, the spiral intersection between the first guide channel and the second guide channel is connected to each other on the fixed shaft, and the guide cursor is slidably engaged inside the first guide channel.

[0012] Preferably, the cleaning component includes a reciprocating block, a buffer cavity is opened inside the reciprocating block near one end edge, the inner wall of the buffer cavity is opened with multiple openings extending to the outside at equal intervals along the circumferential direction, an annular air cavity is opened inside the fixed shaft, one side of the buffer cavity is communicated with the annular air cavity, the inner bottom surfaces of the first guide channel and the second guide channel are both communicated with the annular air cavity, and the inner bottom surfaces of the first guide channel and the second guide channel are both provided with metal filter strips.

[0013] Preferably, one end of the annular air cavity is connected, a reciprocating cavity is provided on one inner wall of the annular air cavity, the reciprocating block is slidably connected between the inner walls of the reciprocating cavity, a first spring is fixed to one end of the reciprocating block, one end of the first spring is fixed to one inner wall of one side of the reciprocating cavity, an air channel is provided on the inner bottom surface of the reciprocating cavity, one end of the air channel passes through to the outside of the material mixing box, an adjusting cavity is provided inside the fixed shaft, a through-opening that passes through the inner bottom surface of the adjusting cavity to the inside of the reciprocating cavity is provided, a connecting rod is slidably arranged inside the through-opening, the bottom of the connecting rod is fixed on the reciprocating block, a ejector pin is slidably connected between the inner walls of the adjusting cavity, the top of the connecting rod is fixed on the ejector pin, one end of the ejector pin slides through to the end connection between the first guide channel and the second guide channel, the buffer cavity is located directly below the through-opening, and the buffer cavity is located on one side of the air channel.

[0014] Preferably, the induction filling mechanism includes a contact rod and a fixed sleeve, the interior of the contact rod is hollow, and one side of the bottom is a smooth arc surface, the fixed sleeve is fixed to the bottom of the material mixing box, the bottom of the fixed sleeve is open, a hexagonal rod is arranged inside the fixed sleeve, and a plurality of hexagonal guide sleeves are equidistantly fixed on the inner bottom surface of the material mixing box, the top of the hexagonal rod slides through between the inner walls of the hexagonal guide sleeve, the top of the contact rod is fixed to the bottom of the hexagonal rod, and feed ports are provided on both sides of the plurality of hexagonal guide sleeves near the bottom edge.

[0015] Preferably, the bottom of the hexagonal rod is in contact with the inner bottom surface of the fixed sleeve near the edge, a second spring is fixed to the outer surface of the hexagonal rod near the bottom edge, the top of the second spring is fixed to the bottom of the material leveling box, wedge-shaped openings are provided on the outer surfaces of both sides of the hexagonal rod, the bottoms of the two wedge-shaped openings are connected to the internal hollow area of ​​the contact rod, and a plurality of discharge openings that penetrate into the interior are equidistantly provided on the outer surface of the contact rod near the bottom edge along the circumferential direction.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a material return mechanism, a material leveling mechanism, a cleaning component and an induction filling mechanism, so that when the filler is supplemented and laid on the compacted roadbed, the filler can be accurately filled into the corresponding concave or uneven area on the roadbed, and the filler can be evenly distributed before filling and unloading, so as to prevent the filler from being unevenly distributed during the unloading process, thereby causing uneven settlement of some roadbed sections during the operation process, or even insufficient stability, etc.;

[0018] 2. The present invention is provided with a return mechanism, which can circulate the excess filler generated by the material-scraping mechanism to the inside of the hopper for reuse, and at the same time provide power for the work of the material-scraping mechanism. When the return mechanism is working, the pulley and the transmission gear are driven to rotate by the starting motor, and the transmission gear is meshed with the inner gear ring to drive the material-scraping mechanism to work. The belt connection between the pulley and one of the conveying rollers can drive the conveyor belt to convey the filler inside the temporary storage box to the inside of the hopper;

[0019] 3. The present invention is provided with a material leveling mechanism, which can ensure that the filler can be evenly laid inside the storage cavity when entering the interior of the material leveling box from the hopper, so as to provide materials for the induction filling mechanism, avoid the phenomenon that the induction filling mechanism discharges materials unevenly due to the uneven distribution of the filler inside the storage cavity, and at the same time prevent the filler from being blocked inside the material leveling box, so that the filler inside the hopper cannot enter the interior of the material leveling box;

[0020] 4. The present invention is provided with a cleaning component and an inductive filling mechanism. The cleaning component is used to clean the first approach and the second approach to prevent fillers and dust from accumulating inside and affecting the sliding of the guide cursor. The inductive filling mechanism can detect the sunken areas on the road surface and accurately fill the sunken areas. After filling, a compacting machine is used to re-compact the roadbed in the sunken area and level the roadbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a side view stereoscopic structure of a roadbed backfill auxiliary device is provided for the present invention;

[0022] Figure 2 The present invention provides a schematic diagram of a three-dimensional structure of a roadbed backfill auxiliary device as viewed from above;

[0023] Figure 3 A schematic diagram of a three-dimensional structure of a side section of a roadbed backfill auxiliary device is provided for the present invention;

[0024] Figure 4 The present invention provides a schematic diagram of a three-dimensional structure of a roadbed backfill auxiliary device from another side;

[0025] Figure 5 The present invention provides a cross-sectional three-dimensional structural schematic diagram of a screed box in a roadbed backfill auxiliary device;

[0026] Figure 6 The present invention provides a schematic diagram of the main stereoscopic structure of a material leveling mechanism in a roadbed backfill auxiliary device;

[0027] Figure 7 The present invention provides a schematic cross-sectional three-dimensional structural diagram of an induction filling mechanism in a roadbed backfill auxiliary device;

[0028] Figure 8 The present invention provides a schematic diagram of the main stereoscopic structure of a sliding ring and a guide tube in a roadbed backfill auxiliary device;

[0029] Fig. 9 For the present invention Figure 5 A partial enlarged view of point A in the middle;

[0030] Fig.10 For the present invention Figure 6 A magnified partial view of point B in the middle.

[0031] In the figure: 1, material mixing box; 2, hopper; 3, conveyor frame; 4, temporary storage box; 5, bottom plate; 6, tire; 8, contact rod; 9, conveyor roller; 10, conveyor belt; 11, side port; 12, belt; 13, motor; 14, machine base; 15, pulley; 16, transmission gear; 17, fixed shaft; 18, annular air cavity; 19, metal filter strip; 20, storage cavity; 21, docking port; 22, inner gear ring; 23, airway; 24, slip ring; 25, fixed sleeve; 26, Reciprocating cavity; 27. first spring; 28. reciprocating block; 29. ​​buffer cavity; 30. opening; 31. adjusting cavity; 32. ejector pin; 33. through-hole; 34. connecting rod; 35. hexagonal rod; 36. wedge-shaped mouth; 37. second spring; 38. discharge port; 39. guide rod; 40. spiral blade; 41. sliding ring; 42. guide tube; 43. first guide channel; 44. second guide channel; 45. guide cursor; 46. connecting shaft; 47. hexagonal guide sleeve; 48. feed port. DETAILED DESCRIPTION

[0032] 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 implementation regulations described 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.

[0033] See also Figure 1-10 The present invention provides a technical solution: a roadbed backfill auxiliary device, comprising a screed box 1, a storage chamber 20 is provided on the inner bottom surface of the screed box 1, a hopper 2 is provided above the screed box 1, the bottom of the hopper 2 is communicated with the top of the screed box 1, a fixed shaft 17 is provided between the inner walls of both sides of the screed box 1, a screed mechanism is provided on the outer surface of the fixed shaft 17, a cleaning component is provided inside the fixed shaft 17, bottom plates 5 are fixed on both sides of the screed box 1, a plurality of tires 6 are provided on the two bottom plates 5, and a plurality of induction filling mechanisms are equidistantly provided at the bottom of the screed box 1;

[0034] Temporary storage boxes 4 are arranged on both sides of the material mixing box 1 . Side openings 11 are opened on both sides of the material mixing box 1 . Both side openings 11 pass through the interior of the temporary storage boxes 4 . A material return mechanism is arranged between the hopper 2 and the two temporary storage boxes 4 .

[0035] The effect achieved is that, by providing a material return mechanism, a material leveling mechanism, a cleaning assembly and an induction filling mechanism, when laying fillers on the compacted roadbed, the fillers can be accurately filled into the corresponding recessed area on the roadbed. When using the device, the tire 6 is used to drive the device to walk along the roadbed to perform filling operations. Side openings 11 that penetrate to the outside are provided on both sides of the material leveling box 1, so that the subsequent material leveling mechanism can push the excess fillers in the material leveling box 1 into the temporary storage box 4. The conveyor belt 10 adopts a conveyor belt structure with a baffle to facilitate lifting of materials.

[0036] like Figure 3 and Figure 4 As shown, the material return mechanism includes two conveying frames 3, the bottoms of the two conveying frames 3 extend to the inner bottom surface of the temporary storage box 4, the tops of the two conveying frames 3 extend to the inside of the hopper 2, a plurality of conveying rollers 9 are arranged between the inner walls on both sides of the two conveying frames 3, a conveyor belt 10 is arranged between the outer surfaces of the plurality of conveying rollers 9 located inside the same conveying frame 3, a connecting shaft 46 is connected between the conveying rollers 9 inside the two conveying frames 3 and close to the side of the hopper 2, a base 14 is fixed to one side of the material mixing box 1, a motor 13 is arranged on the base 14, a pulley 15 is fixed to the output end of the motor 13, a transmission gear 16 is arranged at one end of the pulley 15, a docking port 21 is opened inside one end of the fixed shaft 17, the transmission gear 16 is located inside the docking port 21, and a belt 12 is arranged between the pulley 15 and one of the conveying rollers 9.

[0037] The effect achieved is that the pulley 15 and the transmission gear 16 are driven to rotate by starting the motor 13, and the transmission gear 16 is engaged with the inner ring gear 22 to drive the material leveling mechanism to work. The belt 12 is connected between the pulley 15 and one of the conveying rollers 9, and then the conveyor belt 10 can be driven to transport the filler inside the temporary storage box 4 to the inside of the hopper 2.

[0038] like Figure 4 , Figure 5 , Figure 6 , Figure 8 and Fig.10As shown, the material scrambling mechanism includes a spiral blade 40, an inner gear ring 22 is rotatably embedded near one end edge of the outer surface of the fixed shaft 17, one side of the inner gear ring 22 is rotatably engaged with an inner wall of one side of the material scrambling box 1, the inner side of the inner gear ring 22 extends to the inside of the docking port 21, the inner gear ring 22 and the transmission gear 16 are meshed with each other, a plurality of guide rods 39 are equidistantly fixed to the outer surface of one side of the inner gear ring 22 along the circumferential direction, a slip ring 24 is fixed between one end of the plurality of guide rods 39, the slip ring 24 is rotatably engaged with the inner wall of the other side of the material scrambling box 1, the outer surfaces of the plurality of guide rods 39 are slidably fitted with guide tubes 42, and three slip rings 41 are arranged between the outer surfaces of the plurality of guide tubes 42. The three sliding rings 41 are respectively located at the two ends and the middle part of the multiple guide tubes 42, the spiral blade 40 is fixed between the outer surfaces of the multiple guide tubes 42, and the inner side of the sliding ring 41 located in the middle part is rotatably connected with a guide cursor 45. The outer surface of the fixed shaft 17 is spirally opened with a first guide channel 43, and the outer surface of the fixed shaft 17 is spirally opened with a second guide channel 44. The first guide channel 43 and the second guide channel 44 have opposite rotation directions, and the two end parts of the first guide channel 43 and the second guide channel 44 are connected to each other. The spiral intersection between the first guide channel 43 and the second guide channel 44 is mutually penetrated and connected on the fixed shaft 17, and the guide cursor 45 is slidably engaged in the inside of the first guide channel 43.

[0039] The effect achieved is that the inner gear ring 22 is driven to rotate by the transmission gear 16, thereby driving the multiple guide rods 39 to rotate. Since the guide cursor 45 provided on the inner side of one of the sliding rings 41 is slidably engaged in the first guide channel 43, the frame composed of the multiple guide tubes 42 and the sliding ring 41 is driven to slide to one side along the guide rod 39 during the rotation process, so that the spiral blade 40 pushes the filler inside the material mixing box 1 to one side, and then evenly lays the filler inside the storage chamber 20. When the guide cursor 45 slides to the intersection of the first guide channel 43 and the second guide channel 43, the filler is evenly spread inside the storage chamber 20. When the connecting part of the end of the guide channel 44 is connected, the guide cursor 45 can be transferred from the first guide channel 43 to the second guide channel 44. Since the rotation directions of the first guide channel 43 and the second guide channel 44 are opposite, the guide cursor 45 can drive the frame composed of multiple guide tubes 42 and sliding rings 41 to slide to the other side of the guide rod 39 when sliding inside the second guide channel 44, and the cycle is repeated. During the reciprocating motion, the filler accumulated in the middle part of the material mixing box 1 is evenly laid inside the storage cavity 20, and the excess filler is discharged from the side port 11 into the interior of the temporary storage box 4.

[0040] like Figure 5 and Fig. 9As shown, the cleaning assembly includes a reciprocating block 28, a buffer cavity 29 is provided inside the reciprocating block 28 near one end edge, a plurality of openings 30 are provided on the inner wall of the buffer cavity 29 at equal intervals along the circumferential direction and extending to the outside, an annular air cavity 18 is provided inside the fixed shaft 17, one side of the buffer cavity 29 is communicated with the annular air cavity 18, the inner bottom surfaces of the first guide channel 43 and the second guide channel 44 are communicated with the annular air cavity 18, the inner bottom surfaces of the first guide channel 43 and the second guide channel 44 are provided with metal filter strips 19, one end of the annular air cavity 18 is connected, a reciprocating cavity 26 is provided on the inner wall of one side of the annular air cavity 18, the reciprocating block 28 is slidably connected between the inner walls of the reciprocating cavity 26, a first spring 27 is fixed to one end of the reciprocating block 28, and the first spring 27 is fixed to one end of the reciprocating block 28. One end of a spring 27 is fixed on one side inner wall of the reciprocating chamber 26, an air passage 23 is provided on the inner bottom surface of the reciprocating chamber 26, one end of the air passage 23 penetrates to the outside of the material mixing box 1, an adjusting chamber 31 is provided inside the fixed shaft 17, a through hole 33 is provided on the inner bottom surface of the adjusting chamber 31 penetrating to the inside of the reciprocating chamber 26, a connecting rod 34 is slidably provided inside the through hole 33, the bottom of the connecting rod 34 is fixed on the reciprocating block 28, an ejector pin 32 is slidably connected between the inner walls of the adjusting chamber 31, the top of the connecting rod 34 is fixed on the ejector pin 32, one end of the ejector pin 32 slides through to the end connection between the first guide channel 43 and the second guide channel 44, the buffer chamber 29 is located directly below the through hole 33, and the buffer chamber 29 is located on one side of the air passage 23.

[0041] The effect achieved is that, first, the air passage 23 is connected to the external high-pressure air supply pipeline at the penetration portion of the outer surface of the material mixing box 1. When the guide cursor 45 slides to the connecting portion of the first guide passage 43 and one end of the second guide passage 44, the guide cursor 45 will press the ejector pin 32 toward the inside of the regulating chamber 31, thereby driving the reciprocating block 28 to slide toward one side of the reciprocating chamber 26, so that the multiple openings 30 are opposite to the air passage 23. At this time, the high-pressure gas can enter the opening 30 through the air passage 23, and then flow into the inside of the annular air cavity 18 from the inside of the buffer cavity 29. The high-pressure gas is sprayed into the inside of the first guide passage 43 and the second guide passage 44 through the metal filter strip 19 in the inside of the annular air cavity 18, so that the impurities on the bottom surface of the first guide passage 43 and the second guide passage 44 can be removed. When subsequently reset, the reciprocating block 28 can be reset by the elastic force of the first spring 27 to cut off the air passage 23.

[0042] like Figure 4 and Figure 7As shown, the induction packing mechanism includes a contact rod 8 and a fixed sleeve 25. The interior of the contact rod 8 is hollow, and one side of the bottom is a smooth arc surface. The fixed sleeve 25 is fixed to the bottom of the material screed box 1. The bottom of the fixed sleeve 25 is open. A hexagonal rod 35 is arranged inside the fixed sleeve 25. A plurality of hexagonal guide sleeves 47 are fixed to the inner bottom surface of the material screed box 1 at equal intervals. The top of the hexagonal rod 35 slides through the inner wall of the hexagonal guide sleeve 47. The top of the contact rod 8 is fixed to the bottom of the hexagonal rod 35. The two sides of the plurality of hexagonal guide sleeves 47 are close to the bottom edge. The bottom of the hexagonal rod 35 is in contact with the inner bottom surface of the fixing sleeve 25 near the edge, and a second spring 37 is fixed to the outer surface of the hexagonal rod 35 near the bottom edge. The top of the second spring 37 is fixed to the bottom of the material mixing box 1. Wedge-shaped openings 36 are provided on the outer surfaces of both sides of the hexagonal rod 35. The bottoms of the two wedge-shaped openings 36 are connected to the inner hollow area of ​​the contact rod 8. The outer surface of the contact rod 8 is provided with multiple discharge openings 38 that penetrate into the interior at equal intervals along the circumferential direction near the bottom edge.

[0043] The effect achieved is that when the device is moved along the roadbed, the bottoms of the multiple contact rods 8 located at the bottom of the material leveling box 1 slide in contact with each other and on the top of the roadbed. When the roadbed is level and there is no depression, the two wedge-shaped openings 36 on the hexagonal rod 35 are located above the feed openings 48 on both sides of the hexagonal guide sleeve 47. At this time, the second spring 37 is in a compressed state, and the filler inside the storage chamber 20 will not be discharged. When the roadbed is depressed, the hexagonal rod 35 will be pushed downward by the elastic force of the second spring 37. At this time, the bottom end of the contact rod 8 is located at the bottom of the depression in the roadbed, and the two wedge-shaped openings 36 on the hexagonal rod 35 are opposite to the feed opening 48. The filler located inside the storage chamber 20 can enter the wedge-shaped openings 36 from the feed opening 48, and then be discharged through the discharge opening 38 inside the contact rod 8 to fill the depression in the roadbed.

[0044] Working principle: When using the device, the tire 6 is used to drive the device to move horizontally along the roadbed, and then the filler is placed inside the hopper 2. When moving the device, the starting motor 13 is used to drive the pulley 15 and the transmission gear 16 to rotate. The transmission gear 16 is meshed with the inner gear ring 22 to drive the material leveling mechanism to work. The belt 12 is connected between the pulley 15 and one of the conveying rollers 9, and then the conveyor belt 10 can be driven to transport the filler inside the temporary storage box 4 to the inside of the hopper 2. The inner gear ring 22 is driven to rotate by the transmission gear 16, thereby driving multiple guide rods 39 to rotate. Since the guide cursor 45 set on the inner side of one of the sliding rings 41 is slidably engaged in the first ramp 43, multiple guide tubes are driven during the rotation process. The frame composed of the plurality of guide tubes 42 and the sliding ring 41 slides to one side along the guide rod 39, so that the spiral blade 40 pushes the filler inside the screed box 1 to one side, and then evenly lays the filler inside the storage chamber 20. When the guide cursor 45 slides to the connecting portion of the first guide channel 43 and the second guide channel 44, the guide cursor 45 can be transferred from the first guide channel 43 to the second guide channel 44. Since the rotation directions of the first guide channel 43 and the second guide channel 44 are opposite, the guide cursor 45 can drive the frame composed of the plurality of guide tubes 42 and the sliding ring 41 to slide to the other side of the guide rod 39 when sliding inside the second guide channel 44, and the cycle is repeated. During the reciprocating motion, the filler accumulated in the middle part of the screed box 1 is evenly laid inside the storage chamber 20, and the excess filler is removed. The material is discharged from the side port 11 into the temporary storage box 4. During the movement, the bottoms of the multiple contact rods 8 located at the bottom of the material-scraping box 1 fit and slide against the top of the roadbed. When the roadbed is level and there is no depression, the two wedge-shaped openings 36 on the hexagonal rod 35 are located above the feeding openings 48 on both sides of the hexagonal guide sleeve 47. At this time, the second spring 37 is in a compressed state, and the filler inside the storage chamber 20 will not be discharged. When the roadbed is depressed, the hexagonal rod 35 will be pushed downward by the elastic force of the second spring 37. At this time, the bottom end of the contact rod 8 is located at the bottom of the depression of the roadbed, and the two wedge-shaped openings 36 on the hexagonal rod 35 are opposite to the feeding opening 48. The filler inside the storage chamber 20 can enter the wedge-shaped openings 36 from the feeding opening 48, and then be discharged through the discharge opening 38 inside the contact rod 8. The depressions in the roadbed are filled. When the guide cursor 45 slides to the connecting portion between the first ramp 43 and one end of the second ramp 44, the guide cursor 45 presses the ejector pin 32 toward the inside of the adjusting chamber 31, thereby driving the reciprocating block 28 to slide toward one side of the reciprocating chamber 26, so that the plurality of openings 30 are opposite to the airway 23. At this time, the high-pressure gas can enter the opening 30 through the airway 23, and then flow into the inside of the annular air cavity 18 from the inside of the buffer cavity 29. The high-pressure gas is ejected into the first ramp 43 and the second ramp 44 through the metal filter strip 19 in the annular air cavity 18, so that the impurities on the bottom surfaces of the first ramp 43 and the second ramp 44 can be removed. When subsequently reset, the reciprocating block 28 can be reset by the elastic force of the first spring 27, so that the airway 23 is cut off.

Claims

1. A roadbed backfill auxiliary equipment, characterized in that: The invention comprises a material screed box (1), wherein a storage cavity (20) is provided on the inner bottom surface of the material screed box (1), a hopper (2) is arranged above the material screed box (1), the bottom of the hopper (2) is communicated with the top of the material screed box (1), a fixed shaft (17) is arranged between the inner walls on both sides of the material screed box (1), a material screed mechanism is arranged on the outer surface of the fixed shaft (17), a cleaning component is arranged inside the fixed shaft (17), bottom plates (5) are fixed on both sides of the material screed box (1), a plurality of tires (6) are arranged on the two bottom plates (5), and a plurality of induction filling mechanisms are arranged at equal intervals at the bottom of the material screed box (1); Temporary storage boxes (4) are provided on both sides of the material scrambling box (1), and side openings (11) are provided on both sides of the material scrambling box (1). The two side openings (11) are connected to the interior of the temporary storage boxes (4) respectively. A material return mechanism is provided between the hopper (2) and the two temporary storage boxes (4), and a docking port (21) is provided inside one end of the fixed shaft (17); The material leveling mechanism comprises a spiral blade (40); an inner gear ring (22) is rotatably embedded in the outer surface of the fixed shaft (17) near one end edge; one side of the inner gear ring (22) is rotatably engaged with an inner wall of one side of the material leveling box (1); the inner side of the inner gear ring (22) extends to the inside of the docking port (21); a plurality of guide rods (39) are equidistantly fixed to the outer surface of one side of the inner gear ring (22) along the circumferential direction; a slip ring (24) is fixed between one end of the plurality of guide rods (39); the slip ring (24) is rotatably engaged with the inner wall of the other side of the material leveling box (1); the outer surfaces of the plurality of guide rods (39) are all slidably sleeved with guide tubes (42); three slip rings (41) are arranged between the outer surfaces of the plurality of guide tubes (42); the three slip rings (41) ) are respectively located at both ends and the middle of the plurality of guide tubes (42), the spiral blade (40) is fixed between the outer surfaces of the plurality of guide tubes (42), the inner side of the sliding ring (41) located in the middle is rotatably connected with a guide cursor (45), the outer surface of the fixed shaft (17) is spirally provided with a first guide channel (43), the outer surface of the fixed shaft (17) is spirally provided with a second guide channel (44), the first guide channel (43) and the second guide channel (44) have opposite rotation directions, and both ends of the first guide channel (43) and the second guide channel (44) are connected to each other, the spiral intersection between the first guide channel (43) and the second guide channel (44) are mutually penetrated and connected on the fixed shaft (17), and the guide cursor (45) is slidably engaged inside the first guide channel (43).

2. A roadbed backfill auxiliary device according to claim 1, characterized in that: The cleaning component comprises a reciprocating block (28), a buffer cavity (29) is provided inside the reciprocating block (28) near one end edge, the inner wall of the buffer cavity (29) is provided with a plurality of openings (30) extending to the outside at equal intervals in the circumferential direction, an annular air cavity (18) is provided inside the fixed shaft (17), one side of the buffer cavity (29) is communicated with the annular air cavity (18), the inner bottom surfaces of the first guide channel (43) and the second guide channel (44) are both communicated with the annular air cavity (18), and the inner bottom surfaces of the first guide channel (43) and the second guide channel (44) are both provided with metal filter strips (19).

3. A roadbed backfill auxiliary device according to claim 2, characterized in that: One end of the annular air cavity (18) is in a connected shape, a reciprocating cavity (26) is provided on one inner wall of the annular air cavity (18), the reciprocating block (28) is slidably connected between the inner walls of the reciprocating cavity (26), a first spring (27) is fixed to one end of the reciprocating block (28), one end of the first spring (27) is fixed to one inner wall of the reciprocating cavity (26), an air passage (23) is provided on the inner bottom surface of the reciprocating cavity (26), one end of the air passage (23) passes through to the outside of the material mixing box (1), an adjusting cavity (31) is provided inside the fixed shaft (17), and the inner surface of the adjusting cavity (31) is provided with a plurality of air passages (23). A through hole (33) penetrating into the interior of the reciprocating chamber (26) is provided on the bottom surface of the regulating chamber (31); a connecting rod (34) is slidably arranged inside the through hole (33); the bottom of the connecting rod (34) is fixed on the reciprocating block (28); a pin (32) is slidably connected between the inner walls of the regulating chamber (31); the top of the connecting rod (34) is fixed on the pin (32); one end of the pin (32) slides through the end connection between the first guide channel (43) and the second guide channel (44); the buffer chamber (29) is located directly below the through hole (33); and the buffer chamber (29) is located on one side of the airway (23).

4. The roadbed backfill auxiliary equipment according to claim 1, characterized in that: The material return mechanism comprises two conveying racks (3), the bottoms of the two conveying racks (3) correspondingly extending to the inner bottom surface of the temporary storage box (4), the tops of the two conveying racks (3) correspondingly extending to the inside of the hopper (2), a plurality of conveying rollers (9) are arranged between the inner walls on both sides of the two conveying racks (3), a conveyor belt (10) is arranged between the outer surfaces of the plurality of conveying rollers (9) located inside the same conveying rack (3), and a connecting shaft (46) is connected between the conveying rollers (9) inside the two conveying racks (3) and close to the hopper (2).

5. A roadbed backfill auxiliary device according to claim 4, characterized in that: A base (14) is fixed on one side of the material mixing box (1), a motor (13) is arranged on the base (14), a pulley (15) is fixed to the output end of the motor (13), a transmission gear (16) is arranged at one end of the pulley (15), the transmission gear (16) is located inside the docking port (21), the inner gear ring (22) and the transmission gear (16) are meshed with each other, and a belt (12) is arranged between the pulley (15) and one of the conveying rollers (9).

6. A roadbed backfill auxiliary device according to claim 5, characterized in that: The induction filling mechanism comprises a contact rod (8) and a fixed sleeve (25); the interior of the contact rod (8) is hollow, and one side of the bottom is a smooth arc surface; the fixed sleeve (25) is fixed to the bottom of the material leveling box (1); the bottom of the fixed sleeve (25) is open; a hexagonal rod (35) is arranged inside the fixed sleeve (25); a plurality of hexagonal guide sleeves (47) are fixed to the inner bottom surface of the material leveling box (1) at equal intervals; the top of the hexagonal rod (35) slides through the inner wall of the hexagonal guide sleeve (47); the top of the contact rod (8) is fixed to the bottom of the hexagonal rod (35); and both sides of the plurality of hexagonal guide sleeves (47) are provided with feed openings (48) near the bottom edge.

7. A roadbed backfill auxiliary device according to claim 6, characterized in that: The bottom of the hexagonal rod (35) is in contact with the inner bottom surface of the fixed sleeve (25) near the edge, and a second spring (37) is fixed to the outer surface of the hexagonal rod (35) near the bottom edge. The top of the second spring (37) is fixed to the bottom of the material leveling box (1). Wedge-shaped openings (36) are provided on the outer surfaces of both sides of the hexagonal rod (35). The bottoms of the two wedge-shaped openings (36) are communicated with the inner hollow area of ​​the contact rod (8). The outer surface of the contact rod (8) is provided with a plurality of discharge openings (38) equidistantly extending to the inside along the circumferential direction near the bottom edge.

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