Flattening device suitable for road construction

Abstract

The invention discloses a paving device suitable for road construction, and relates to the related technical field of road construction, the paving device comprises a storage barrel and a discharging box, the storage barrel is connected to the discharging box, openings are formed in the lower portions of the end faces of the discharging box and telescopic boxes, the telescopic boxes are slidably inserted into the two ends of the discharging box, and a material guiding mechanism is arranged on the discharging box. The material guiding mechanism comprises a main rotating frame, a side rotating frame and a limiting ring, the limiting ring is installed in the material discharging box, the main rotating frame is rotationally installed in the limiting ring, the side rotating frame is rotationally connected into the telescopic box, the side rotating frame is slidably inserted into one end of the main rotating frame, and the telescopic box extends out of the two ends of the material discharging box to increase the laying range so as to adapt to base surface roads with different widths; the side rotating frame extends out of the telescopic box to slide at one end of the main rotating frame, it is guaranteed that gravels can be evenly discharged from openings of the discharging box and the telescopic box, and the problems that most of existing road paving devices cannot be adjusted according to the width of a base plane, adaptability is poor, and the construction efficiency is low due to repeated stone paving are solved.

Description

Technical Field

[0001] The invention relates to the technical field related to road construction, and in particular to a paving device suitable for road construction. Background Art

[0002] In road construction, road paving devices (or road leveling equipment) play a vital role. These devices not only help to ensure that the paved road surface is flat, but also play an important role in improving construction efficiency and quality. Common road paving devices include cement paving devices, gravel paving devices, leveling devices, etc. Each device has different uses and characteristics and is usually used in different stages of road construction.

[0003] Among them, the gravel paving device is a device for laying gravel on the road base surface. The gravel with smaller particles can fill the pits of the base road surface and achieve the effect of preliminary leveling. The laid gravel layer can enhance the bearing capacity of the soil or base layer, especially on soft or slippery ground. The gravel provides additional structural support and reduces the risk of foundation settlement. The gravel layer also has good water permeability and can effectively drain rainwater to prevent moisture from accumulating under the road surface. This helps to reduce the penetration and erosion of water into the cement layer and avoid water damage to the road surface. After the gravel is laid, the cement paving device can be used to pour cement on the gravel layer. At this time, the gravel layer can provide better adhesion for the cement layer laid on it. The cement layer enhances the adhesion of cement through interaction with the gravel, preventing the loosening or falling off of the cement surface layer. When there is too much water in the soil, the soil is prone to swelling. The laying of the gravel layer can isolate moisture and improve the dryness of the soil layer, thereby avoiding uneven foundation settlement caused by swelling.

[0004] Most of the existing road paving devices are connected to a paver. When laying stones, the paver moves along the base surface, and the paving device will evenly discharge the stones so that the stones are spread on the base surface. However, the discharge slots of the existing road paving devices are mostly fixed in length and can only pave a base surface of a fixed width. When encountering a wider base surface road, the paver needs to reciprocate multiple times to spread stones on the base surface road to achieve the purpose of comprehensive paving. The road paving device cannot be adjusted according to the width of the base surface and has poor adaptability. Multiple reciprocating paving of stones leads to low construction efficiency. In order to solve the above-mentioned problems, a paving device suitable for road construction is now provided. Summary of the invention

[0005] The object of the present invention is to provide a paving device suitable for road construction to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a paving device suitable for road construction, comprising a storage bucket;

[0007] Discharge box;

[0008] The storage bucket is fixedly connected to the upper end of the discharge box, and an opening for discharging gravel is provided below the end surface of the discharge box;

[0009] Telescopic boxes, two telescopic boxes are respectively slidably plugged into the two ends of the discharge box, and openings for discharging gravel are also provided below the end faces of the telescopic boxes. The two telescopic boxes extend from the two ends of the discharge box to increase the paving range;

[0010] The material guiding mechanism is arranged inside the discharge box and the telescopic box, and is used to promote the discharge of crushed stones inside the discharge box and the telescopic box.

[0011] In a further embodiment, the material guiding mechanism includes a main rotating frame, a side rotating frame and a limiting ring. The limiting ring is fixedly installed in the discharge box, the main rotating frame is rotatably installed in the limiting ring, one end of the side rotating frame is rotatably connected in the telescopic box, and the other end of the side rotating frame is slidably inserted into one end of the main rotating frame, and the side rotating frame slides at one end of the main rotating frame as the telescopic box extends out.

[0012] In a further embodiment, a turntable is fixedly sleeved in the middle of the main turntable, the turntable is rotatably mounted in a limit ring, and a first motor for driving a side turntable to rotate is fixedly mounted on the upper end of a telescopic box.

[0013] In a further embodiment, a cover for closing the opening is slidably mounted on the end surface of the discharge box, and limiting strips for limiting the cover are fixedly mounted on both ends of the discharge box.

[0014] In a further embodiment, a telescopic rod for controlling the sliding of the cover is fixedly installed on the end surface of the discharge box, stabilizing rods are fixedly connected to both sides of the upper end of the cover, and a sleeve matching the stabilizing rod is fixedly installed on the end surface of the discharge box.

[0015] In a further embodiment, a telescopic mechanism for controlling the sliding of the telescopic box is installed on the other end surface of the discharge box.

[0016] In a further embodiment, the telescopic mechanism includes a rack, a gear and a limit cover. The gear is rotatably mounted on the outer wall of the discharge box, one end of the rack is fixedly connected to the edge of the outer wall of the telescopic box, the two racks are symmetrically arranged with the gear as the center, and both racks are meshed with the gear. The limit cover is fixedly connected to the outer wall of the discharge box, and the limit cover covers the rack and the gear.

[0017] In a further embodiment, a second motor for driving the gear to rotate is fixedly mounted on the limiting cover.

[0018] In a further embodiment, a connecting frame for connecting to a paving machine is fixedly mounted on one end of the storage bucket and the discharge box.

[0019] In a further embodiment, a universal wheel is installed at the lower end of the discharge box to facilitate the movement of the equipment.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention is a paving device suitable for road construction. The telescopic box is extended from both ends of the discharge box to increase the paving range so as to adapt to base roads of different widths. The side rotating frame slides on one end of the main rotating frame as the telescopic box is extended, so as to ensure that gravel can be evenly discharged from the openings of the discharge box and the telescopic box. This solves the problem that most of the existing road paving devices cannot be adjusted according to the base width, have poor adaptability, and have low construction efficiency due to repeated reciprocating paving of gravel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the paving device according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the extension structure of the telescopic box according to an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the rear view structure of the paving device according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of a storage bucket structure according to an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of a discharge box and a telescopic box according to an embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the rear view structure of the discharge box and the telescopic box according to an embodiment of the present invention;

[0028] Figure 7 An exploded view of a discharge box and a limit cover according to an embodiment of the present invention;

[0029] Figure 8 It is a schematic cross-sectional structural diagram of a discharge box according to an embodiment of the present invention;

[0030] Fig. 9 It is a schematic cross-sectional structure diagram of a discharge box and a telescopic box according to an embodiment of the present invention;

[0031] Fig.10 It is a schematic diagram of a half-section structure of a discharge box according to an embodiment of the present invention;

[0032] Fig.11 It is a partial exploded view of the material guiding mechanism according to an embodiment of the present invention.

[0033] In the figure: 1. Storage barrel; 2. Discharge box; 3. Telescopic box; 4. Material guiding mechanism; 41. Main rotating frame; 411. Turntable; 42. Side rotating frame; 43. Limiting ring; 5. Connecting frame; 6. Telescopic mechanism; 61. Rack; 62. Gear; 63. Limiting cover; 7. Sealing cover; 71. Telescopic rod; 72. Stabilizing rod; 73. Limiting strip; 8. Universal wheel. DETAILED DESCRIPTION

[0034] The following will be described clearly and completely in conjunction with 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.

[0035] See also Figure 1-11 The present embodiment provides a paving device suitable for road construction, including a storage bucket 1 and a discharge box 2, wherein the storage bucket 1 is fixedly connected to the upper end of the discharge box 2. The crushed stone is introduced into the storage bucket 1 by a conveyor, and the crushed stone is temporarily stored in the storage bucket 1. Since the bottom of the storage bucket 1 is similar to a funnel-shaped structure, the crushed stone can naturally flow downward and fall into the discharge box 2 below by its own gravity.

[0036] like Figure 1 and Figure 2 As shown, telescopic boxes 3 are slidably inserted at both ends of the discharge box 2, and the interiors of the two telescopic boxes 3 are interconnected with the interior of the discharge box 2. The gravel entering the discharge box 2 will move into the telescopic boxes 3 until it is completely filled.

[0037] The outer wall of the telescopic box 3 fits the inner wall of the discharge box 2, thereby preventing small crushed stones from being discharged from the gap between the telescopic box 3 and the discharge box 2, and preventing the crushed stones from being stuck in the gap between the telescopic box 3 and the discharge box 2, affecting the sliding of the telescopic box 3.

[0038] The end surfaces of the telescopic box 3 and the discharge box 2 are both provided with openings for discharging crushed stones, and the openings of the telescopic box 3 and the discharge box 2 are interconnected. The inner bottom surfaces of the telescopic box 3 and the discharge box 2 are both arranged as inclined surfaces inclined toward the opening direction, so that the crushed stones can be discharged from the opening by their own gravity.

[0039] After the telescopic box 3 extends from the side of the discharge box 2, the discharge amount and discharge range of the crushed stone can be changed, thereby adapting to base roads of different widths, ensuring that the crushed stone can be evenly laid in the designated area, and improving construction efficiency. Through this design, the device of this embodiment can cope with a variety of construction environments and requirements, and it is more convenient to adjust the discharge amount and discharge range, meeting the needs of different road widths and crushed stone paving.

[0040] The end surface of the discharge box 2 is slidably mounted with a cover 7, which is located above the opening of the discharge box 2. After the cover 7 slides downward, the opening of the discharge box 2 can be effectively closed to prevent the gravel from leaking or overflowing. After the telescopic box 3 is retracted into the discharge box 2, the openings of the telescopic box 3 and the discharge box 2 will overlap. At this time, Figure 5 As shown, after the cover 7 slides downward to close the opening of the discharge box 2, the crushed stones in the telescopic box 3 and the discharge box 2 can be prevented from being discharged, thereby preventing the crushed stones from leaking out before the construction process.

[0041] A telescopic rod 71 is fixedly installed on the outer wall of the discharge box 2. The telescopic rod 71 is set as a hydraulic rod, which can provide a strong thrust through hydraulic drive. The output rod of the telescopic rod 71 is fixedly connected to the middle part of the upper end of the cover 7. The cover 7 can be driven to move downward to close the opening of the discharge box 2 by extending the telescopic rod 71. This design can flexibly control the opening and closing of the cover 7 according to actual needs, ensuring the safe storage of crushed stone during the construction process. Of course, the telescopic rod 71 is not limited to a hydraulic rod, and can also be set as an electric push rod, a pneumatic rod or a screw rod, as long as it can provide a strong thrust and pull to drive the cover 7 to move.

[0042] After the storage barrel 1 is filled, the crushed stones in the storage barrel 1, the discharge box 2 and the telescopic box 3 will generate an outward expansion force due to their own gravity. At this time, the crushed stones in the opening will exert an extrusion force on the cover 7. The large extrusion force will easily cause the connection between the cover 7 and the telescopic rod 71 to bend, thereby causing a gap between the cover 7 and the discharge box 2. In order to limit the cover 7, the two sides of the discharge box 2 are fixedly connected to the limit strips 73. Figure 5 As shown, the cross section of the limiting strip 73 is set to an L-shaped structure, and the side of the cover 7 is slidably installed in the limiting strip 73. The limiting strip 73 limits the cover 7 to prevent the cover 7 from being separated from the discharge box 2 due to the squeezing force of the crushed stone.

[0043] When the telescopic rod 71 is extended and retracted to drive the cover 7 to slide, due to the difference in friction coefficient between the two sides of the cover 7 and the limit strips 73, when the friction coefficient between the two sides of the cover 7 and the two limit strips 73 is different, the cover 7 is prone to skew, and then it is horizontally engaged between the two limit strips 73. In order to prevent the cover 7 from getting stuck during the sliding process, the edges of the upper end of the cover 7 are fixedly connected with stabilizing rods 72, and a sleeve is fixedly installed on the end surface of the discharge box 2. The stabilizing rod 72 on the cover 7 is slidably inserted into the sleeve, and the sliding of the stabilizing rod 72 is limited by the sleeve, and then the sliding of the cover 7 is limited. In this way, the role of the sleeve is to ensure the stability of the cover 7, and then ensure the stability and smoothness of the entire sliding process of the cover 7, and prevent the skew and jamming caused by skew. Through this design, not only the stability of the device during the discharge process is guaranteed, but also the overall work efficiency is improved, and the failure caused by the jamming or imbalance of the components is avoided, and the reliability and durability of the equipment are further improved.

[0044] The expansion force exerted outward by the crushed stone in the discharge box 2 and the telescopic box 3 will also drive the telescopic box 3 to slide out from the side of the discharge box 2, increase the internal space of the discharge box 2 and the telescopic box 3, and release the expansion force. In order to accurately control the sliding of the telescopic box 3, a telescopic mechanism 6 is fixedly installed at the end surface of the discharge box 2 away from the cover 7. Figure 3 and Figure 7 As shown, the telescopic mechanism 6 includes a rack 61, a gear 62 and a limit cover 63, wherein the gear 62 is rotatably mounted on the outer wall of the discharge box 2, the rack 61 is set as an L-shaped structure, one bent end of the rack 61 is fixedly connected to the edge of the outer wall of the telescopic box 3, the other bent edge is attached to the discharge box 2, and one side attached to the discharge box 2 is provided with teeth, the two racks 61 are centrally symmetrically arranged with the gear 62 as the center, and the two racks 61 are meshed on the gear 62, the limit cover 63 is fixedly connected to the outer wall of the discharge box 2, and the limit cover 63 covers the rack 61 and the gear 62. A second motor is fixedly mounted on the limit cover 63, and the output shaft of the second motor passes through the limit cover 63 and is fixedly connected to the gear 62.

[0045] By starting the second motor, the gear 62 can be driven to rotate, and the rotating gear 62 can drive the meshing rack 61 to slide on the outer wall of the telescopic box 3, thereby driving the telescopic box 3 to extend and retract, changing the overall length of the device, controlling the range of material discharge, and meeting different construction requirements. One side and end face of the rack 61 fit the limit cover 63, and the limit cover 63 cooperates with the gear 62 to limit the rack 61, ensuring the stable movement of the rack 61, preventing the rack 61 from being skewed, and ensuring that the gear 62 and the two racks 61 form a stable mechanical transmission system.

[0046] However, in the actual operation of the device, it was found that the crushed stones in the device usually naturally pile up into an irregular, relatively compact structure. This stacking structure will produce a certain friction force, preventing the crushed stones from moving freely without external force. The particles of the crushed stones will also interact with each other, producing a certain compaction effect. Therefore, even if the sides of the discharge box 2 and the telescopic box 3 are provided with openings, the particles of the crushed stones may be pressed very tightly, preventing the crushed stones from being discharged through the openings. Therefore, in order to prevent the crushed stones from being blocked in the device, a material guide mechanism 4 is installed in the discharge box 2. Fig. 9 As shown, the material guide mechanism 4 includes a main rotating frame 41, a side rotating frame 42 and a limiting ring 43, wherein the limiting ring 43 is fixedly installed in the discharge box 2 through a bracket, and when the telescopic box 3 is retracted into the discharge box 2, the limiting ring 43 is located between the two discharge boxes 2. The main rotating frame 41 is composed of two chucks and four first stirring rods, and the two ends of the four first stirring rods are fixedly inserted into the two chucks respectively, so that the four first stirring rods are located between the two chucks, and the four first stirring rods are arranged in a circular array with the chuck as the center of the circle. A rotating disk 411 is also fixedly sleeved in the middle of the four first stirring rods, and the rotating disk 411 is rotatably engaged in the ring hole of the limiting ring 43, so that the entire main rotating frame 41 is rotatably installed in the limiting ring 43. The side rotating frame 42 is composed of a connecting plate and four second stirring rods. The four second stirring rods are fixedly connected to one end surface of the connecting plate, and the other end surface of the connecting plate is rotatably connected to the telescopic box 3. Slide holes are opened at both ends of the first stirring rod, and the second stirring rods are slidably inserted into the slide holes on the first stirring rod. When the telescopic box 3 slides out from the side of the discharge box 2, it can drive the second stirring rods to slide out synchronously from one side of the first stirring rod.

[0047] like Figure 8 and Fig. 9 As shown, a first motor is fixedly installed on the upper end of one side telescopic box 3, and the first motor and a side rotating frame 42 are driven by a chain and a sprocket. After the first motor is started, one side rotating frame 42 can be driven to rotate, and the other side rotating frame 42 can also be driven to rotate synchronously through the main rotating frame 41. During the rotation of the main rotating frame 41 and the two side rotating frames 42, the first stirring rod and the second stirring rod will stir the crushed stone inside the discharge box 2 and the telescopic box 3. The stirring action can help loosen and push the crushed stone to move toward the discharge port, thereby promoting the uniform and stable discharge of the crushed stone from the openings of the discharge box 2 and the telescopic box 3.

[0048] When the discharging box 2 and the telescopic box 3 discharge the crushed stone and lay the crushed stone on the base surface, the discharging box 2 and the telescopic box 3 need to move along the base surface road. Figure 3As shown, universal wheels 8 are fixedly connected to both sides of the lower end of the discharging box 2, and connecting frames 5 are installed on the outer side walls of the discharging box 2 and the storage barrel 1. Among them, the connecting frame 5 is connected to the paver by bolts, and the reference model of the paver is the leveling machine of Yanmar 4TNV94L. When the paver travels on the base road, the storage barrel 1, the discharging box 2 and the telescopic box 3 are driven to move through the connecting frame 5 and the universal wheels 8. At this time, the cover 7 is opened, and the crushed stones in the device can be discharged through the openings of the discharging box 2 and the telescopic box 3 and laid on the base road. Since most of the base roads are composed of reclaimed soil or gravel ground, laying the crushed stones on the base road can fill the pits on the base road, thereby achieving the function of initially leveling the road and laying the foundation for the next step of laying cement.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paving device suitable for road construction, characterized in that: include: Bucket(1); Discharge box (2); The storage bucket (1) is fixedly connected to the upper end of the discharge box (2), and an opening for discharging crushed stones is provided below the end surface of the discharge box (2); Telescopic boxes (3), two of the telescopic boxes (3) are respectively slidably plugged into the two ends of the discharge box (2), and openings for discharging gravel are also provided below the end surfaces of the telescopic boxes (3). The two telescopic boxes (3) extend from the two ends of the discharge box (2) to increase the paving range; A material guiding mechanism (4) is arranged inside the material discharging box (2) and the telescopic box (3) and is used to promote the discharge of crushed stones inside the material discharging box (2) and the telescopic box (3).

2. A paving device suitable for road construction according to claim 1, characterized in that: The material guiding mechanism (4) comprises a main rotating frame (41), a side rotating frame (42) and a limiting ring (43); the limiting ring (43) is fixedly installed in the material discharging box (2); the main rotating frame (41) is rotatably installed in the limiting ring (43); one end of the side rotating frame (42) is rotatably connected in the telescopic box (3); and the other end of the side rotating frame (42) is slidably inserted in one end of the main rotating frame (41); the side rotating frame (42) slides on one end of the main rotating frame (41) as the telescopic box (3) extends out.

3. A paving device suitable for road construction according to claim 2, characterized in that: A rotating disk (411) is fixedly sleeved in the middle of the main rotating frame (41), and the rotating disk (411) is rotatably mounted in a limiting ring (43). A first motor for driving a side rotating frame (42) to rotate is fixedly mounted on the upper end of one of the telescopic boxes (3).

4. A paving device suitable for road construction according to claim 2, characterized in that: A cover (7) for closing the opening is slidably mounted on the end surface of the discharge box (2), and limiting bars (73) for limiting the cover (7) are fixedly mounted on both ends of the discharge box (2).

5. A paving device suitable for road construction according to claim 4, characterized in that: A telescopic rod (71) for controlling the sliding of the cover (7) is fixedly mounted on the end surface of the discharge box (2), stabilizing rods (72) are fixedly connected to both sides of the upper end of the cover (7), and a sleeve matching the stabilizing rod (72) is fixedly mounted on the end surface of the discharge box (2).

6. A paving device suitable for road construction according to claim 5, characterized in that: The other end surface of the discharge box (2) is provided with a telescopic mechanism (6) for controlling the sliding of the telescopic box (3).

7. A paving device suitable for road construction according to claim 6, characterized in that: The telescopic mechanism (6) comprises a rack (61), a gear (62) and a limit cover (63); the gear (62) is rotatably mounted on the outer wall of the discharge box (2); one end of the rack (61) is fixedly connected to the edge of the outer wall of the telescopic box (3); the two racks (61) are centrally symmetrically arranged with the gear (62) as the center, and the two racks (61) are meshed with the gear (62); the limit cover (63) is fixedly connected to the outer wall of the discharge box (2), and the limit cover (63) covers the rack (61) and the gear (62).

8. A paving device suitable for road construction according to claim 7, characterized in that: A second motor for driving the gear (62) to rotate is fixedly mounted on the limiting cover (63).

9. A paving device suitable for road construction according to claim 7, characterized in that: A connecting frame (5) for connecting to a paving machine is fixedly mounted on one end of the storage barrel (1) and the discharge box (2).

10. A paving device suitable for road construction according to claim 9, characterized in that: The lower end of the discharge box (2) is provided with a universal wheel (8) for facilitating the movement of the equipment.

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