Stepless width-adjusting asphalt concrete core wall paver

Abstract

An asphalt concrete core wall paver with stepless width adjustment comprises a rack and a crawler chassis, a cab, an engine and a hydraulic system are arranged on the front portion of the rack, an asphalt hopper is arranged in the middle of the rack, a blanking bin is arranged on the lower portion of the asphalt hopper, a transition hopper is arranged on the rear portion of the rack, and two transition material forming mechanisms are arranged on the lower portion of the transition hopper. Two transition material forming mechanisms are arranged on the lower portion of the machine frame, a stepless width adjusting sliding mode asphalt forming mechanism is arranged on the rear lower portion of the machine frame, the stepless width adjusting sliding mode asphalt forming mechanism is communicated with a blanking bin and located between the two transition material forming mechanisms, a spiral conveyor is arranged in the blanking bin, and a hydraulic system provides power for the blanking bin, the stepless width adjusting sliding mode asphalt forming mechanism and the transition material forming mechanisms. Sealing strips are arranged on the lower portion of the blanking bin and the lower portion of the stepless width adjusting slip form asphalt forming mechanism, the paving width of the asphalt core wall can be automatically adjusted between 600 mm and 1000 mm through the stepless width adjusting slip form forming mechanism, and paving of the asphalt core wall transition section is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy engineering, and in particular relates to an asphalt concrete core wall paver with stepless width adjustment. Background Art

[0002] In water conservancy and hydropower projects, asphalt concrete core wall has been widely used as the anti-seepage body of rockfill dam. This is mainly because the advantages of asphalt concrete core wall are gradually being recognized by people in recent years. The outstanding advantages of asphalt concrete core wall are good anti-seepage and good deformation performance. Asphalt concrete has good seismic performance and can be used for dam construction in strong earthquake areas. Asphalt concrete core wall has good durability and aging resistance, cracks have self-healing ability, and are less affected by external climate and light. It is almost not affected by extreme heat and severe cold. The spreading and compaction of asphalt concrete are simpler than panels, and it is easy to connect with the riverbed and concrete bases on both sides.

[0003] Asphalt concrete core wall paving special machinery and equipment is the key equipment for the construction of the center wall of asphalt concrete core wall rockfill dam. At present, the existing asphalt concrete core wall paving special equipment in the Chinese market is modified from highway asphalt paver. The modified asphalt core wall paver needs to replace different asphalt molding bins according to the asphalt paving width, which increases the paving process and requires the manufacture of multiple asphalt molding bins, increasing the manufacturing cost. In addition, there is a gradient section in the asphalt core wall, where the paving width of the asphalt core wall gradually shrinks from 1000mm to 600mm. The modified asphalt core wall paver cannot achieve automatic width adjustment, so the construction of the core wall gradient section cannot be completed. It must be paved manually, which limits the use of asphalt concrete core wall paver. At the same time, since the molding bin of the asphalt core wall paver is made of steel plate, it cannot directly contact the asphalt core wall, otherwise it will scratch the paved asphalt core wall surface. Generally, there is a 3cm distance between the molding bin and the asphalt core wall surface. When the paver is paved, part of the asphalt concrete is squeezed out of the gap, resulting in a large loss of asphalt material. The above problems seriously affect the promotion and application of asphalt core wall pavers. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art and provide an asphalt concrete core wall paver with reasonable design, simple structure, high construction efficiency and the ability to automatically adjust the asphalt core wall paving width between 600mm and 1000mm with stepless width adjustment.

[0005] The technical solution adopted to solve the above technical problems is: an asphalt concrete core wall paver with infinitely variable width, including a frame and a crawler chassis, a cab, an engine, and a hydraulic system are arranged on the front part of the frame, an asphalt hopper is arranged in the middle part of the frame, a material dropping bin is arranged at the lower part of the asphalt hopper, a transition hopper is arranged at the rear part of the frame, two groups of transition material forming mechanisms are arranged at the lower part of the transition hopper, an infinitely variable width sliding form asphalt forming mechanism is arranged at the rear lower part of the frame, the infinitely variable width sliding form asphalt forming mechanism is connected with the material dropping bin and is located in the middle of the two groups of transition material forming mechanisms, a screw conveyor is arranged in the material dropping bin, the screw conveyor transports the asphalt in the material dropping bin to the infinitely variable width sliding form asphalt forming mechanism, the hydraulic system provides power to the material dropping bin, the infinitely variable width sliding form asphalt forming mechanism, and the transition material forming mechanism, and sealing strips are arranged at the lower part of the material dropping bin and the infinitely variable width sliding form asphalt forming mechanism.

[0006] The stepless width-adjustable sliding form asphalt molding mechanism of the present invention is as follows: one end of the transition bin is connected to the blanking bin, and the other end is provided with the width-adjusting molding mechanism; gradient section side panels are symmetrically provided on both sides of the lower part of the transition bin; one end of the gradient section side panel is provided on the side wall of the transition bin through a first hinge, and the other end is connected to the side wall of the width-adjusting molding mechanism through a second hinge; the gradient section side panel can rotate around the first hinge to realize gradual width adjustment; sealing strips are provided at the bottom of the transition bin, the gradient section side panel and the width-adjusting molding mechanism.

[0007] The transition bin of the present invention is as follows: the transition bin body is composed of a transition bin side plate, a transition bin cover plate, a gradient section cover plate, and a transition bin connecting plate. A transition bin cover plate is arranged on the top of two relatively arranged transition bin side plates. The transition bin cover plate is arranged obliquely and the left end is higher than the right end. A gradient section cover plate is horizontally arranged at the end of the transition bin cover plate. The cross-sectional shape of the gradient section cover plate is an isosceles trapezoidal structure. The top of the isosceles trapezoidal structure is connected to the transition bin cover plate. A transition bin connecting plate is arranged on the left end of the transition bin cover plate and the transition bin side plate. The transition bin connecting plate is connected to the blanking bin.

[0008] The width adjustment and forming mechanism of the present invention is as follows: the front side plate for width adjustment and forming is arranged opposite to the rear side plate for width adjustment and forming, and a horizontal plate is vertically arranged on the inner side of the front side plate for width adjustment and forming and the rear side plate for width adjustment and forming, and the horizontal plate is inserted into the top plate. The top plate is a hollow plate, and two groups of second hydraulic cylinders are vertically arranged on the upper left part of the top plate, and a third hydraulic cylinder and a fourth hydraulic cylinder are horizontally arranged in the middle part of the top plate. The bases of the third hydraulic cylinder and the fourth hydraulic cylinder are fixed on the top plate, the piston rod of the third hydraulic cylinder is fixed on the front side plate for width adjustment and forming, and the piston rod of the fourth hydraulic cylinder is fixed on the rear side plate for width adjustment and forming, and two groups of positioning rods are arranged on the upper right part of the top plate, and the positioning rods are inserted into the frame and can slide up and down along the frame.

[0009] The gradient section side plate of the present invention comprises: a clamping plate is arranged on the outer side of the side plate body, and a slide groove is formed between the side plate body and the clamping plate.

[0010] The second hinge of the present invention is: a blocking plate is arranged in the middle of the rotating shaft, hinge connecting plates are arranged at both ends, the hinge connecting plates are fixed to the width adjustment forming front side plate and the width adjustment forming rear side plate, and the end of the blocking plate is inserted into the slide groove.

[0011] The material drop bin of the present invention comprises: a fixed bin is arranged on the upper part of a mobile bin, the fixed bin is fixed on a frame, a first hydraulic cylinder piston rod is arranged on a side wall of the mobile bin, and a first hydraulic cylinder base is arranged on the frame.

[0012] The fixed silo of the present invention is: the first template of the fixed silo and the second template of the fixed silo are connected end to end to form a rectangular structure with upper and lower openings, and a frame fixing plate is arranged on the outer side wall of the second template of the fixed silo; the mobile silo is: the first template of the mobile silo, the second template of the mobile silo, and the silo connecting plate are connected end to end to form a rectangular structure with upper and lower openings and an opening on the left end, and the third template of the mobile silo is arranged on the upper left end of the second template of the mobile silo. The third template of the mobile silo is an L-shaped plate, and the silo connecting plate is connected to the left end of the stepless width adjustment sliding mold asphalt forming mechanism, and two groups of mounting holes are processed on the lower part of the first template of the mobile silo, and one end of the screw conveyor is installed on the drop silo through the mounting holes.

[0013] The transition silo of the present invention has an opening at the top of the silo body, a conical structure in the middle, and an inwardly inclined rear wall. The conical structure divides the silo body symmetrically into two parts, and a discharge port is arranged at the bottom of the silo body.

[0014] The transition material forming mechanism of the present invention is as follows: the forming bin is a rectangular structure with upper and lower openings, a connecting frame is provided on the upper part of the outer wall of the forming bin, a sliding wheel is provided on the bottom of the connecting frame, the sliding wheel is provided on a sliding rail, the sliding rail is installed on a frame, a thrust frame is provided on one side wall of the forming bin, the thrust frame is connected to the piston rod of the fifth hydraulic cylinder, and the base of the fifth hydraulic cylinder is fixed on the frame.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The stepless width-adjustable sliding mold forming mechanism of the present invention can realize automatic adjustment of the asphalt core wall paving width between 600 and 1000 mm, thereby realizing the paving of the asphalt core wall gradient section.

[0017] 2. The present invention does not need to replace the asphalt forming bin when paving the asphalt core wall width variation section, thus reducing the paving process.

[0018] 3. The bottom of the mobile silo and the stepless width adjustment sliding mold forming mechanism of the present invention is installed with a wear-resistant and high-temperature resistant flexible sealing strip, so that the mobile silo and the stepless width adjustment sliding mold forming mechanism can contact with the paved asphalt core wall surface without scratching the wall surface, and at the same time, the distance between the mobile silo and the stepless width adjustment sliding mold forming mechanism and the paved asphalt core wall surface is reduced to 1 cm, and the asphalt material cannot be squeezed out from the 1 cm gap, so the asphalt material is not wasted.

[0019] 4. The material bin of the present invention adopts a combination of a fixed bin and a sliding bin to ensure that the paving thickness and the equipment transfer after paving are not affected. The rising and falling of the sliding bin is achieved by the extension and retraction of the hydraulic cylinder. The stepless width-adjustable sliding form asphalt forming mechanism rises during the transfer, which does not affect the rapid travel of the core wall paver and improves the transfer efficiency.

[0020] 5. The discharge port of the transition material bin of the present invention is located on both sides of the stepless width adjustment sliding mold forming mechanism, and a transition material forming mechanism is arranged below the discharge port. The transition material forming mechanism maintains synchronous movement through the hydraulic cylinder and the stepless width adjustment sliding mold forming mechanism, while realizing the stepless adjustment of the asphalt core wall paving width, ensuring that the transition material always falls on both sides of the asphalt material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the present invention.

[0022] Figure 2 yes Figure 1 Right view of .

[0023] Figure 3 yes Figure 1 Schematic diagram of the structure of the stepless width-adjustable sliding mold asphalt forming mechanism 11.

[0024] Figure 4 yes Figure 3 main view.

[0025] Figure 5 yes Figure 3 Top view adjusted to 600mm.

[0026] Figure 6 yes Figure 3 Top view adjusted to 800mm.

[0027] Figure 7 yes Figure 3 Top view adjusted to 1000mm.

[0028] Figure 8 yes Figure 3 Schematic diagram of the structure of the middle transition warehouse 11-1.

[0029] Fig. 9 yes Figure 8 Top view of the .

[0030] Fig.10 yes Fig. 9 AA section view.

[0031] Fig.11 yes Figure 3 Schematic diagram of the structure of the middle width adjustment forming mechanism 11-3.

[0032] Fig.12 yes Figure 3 A schematic structural diagram of the middle gradient section side panel 11-5.

[0033] Fig.13 yes Fig.12 main view.

[0034] Fig.14 yes Figure 3 Schematic diagram of the structure of the second hinge 11-4.

[0035] Fig.15 yes Figure 1 A schematic structural diagram of the middle drop bin 8.

[0036] Fig.16 yes Fig.15 main view.

[0037] Fig.17 yes Fig.15 Schematic diagram of the structure of the fixed silo 8-1.

[0038] Fig.18 yes Fig.15 Schematic diagram of the structure of the mobile silo 8-2.

[0039] Fig.19 yes Figure 1 Schematic diagram of the structure of the intermediate transition silo 6.

[0040] Fig. 20 yes Fig.19 Rear view of.

[0041] Fig.21 yes Fig.19 Left view of .

[0042] Fig. 22 yes Figure 1 A schematic structural diagram of the intermediate transition material forming mechanism 12.

[0043] In the figure: 1. cab; 2. engine; 3. hydraulic system; 4. asphalt hopper; 5. frame; 6. transition hopper; 7. crawler chassis; 8. drop bin; 9. screw conveyor; 10. sealing strip; 11. stepless width adjustment sliding mold asphalt molding mechanism; 12. transition material molding mechanism; 6-1. silo body; 6-2. discharge port; 8-1. fixed silo; 8-2. mobile silo; 8-3. first hydraulic cylinder; 8-1-1. first template of fixed silo; 8-1-2. second template of fixed silo; 8-1-3. frame fixing plate; 8-2-1. first template of mobile silo; 8-2-2. second template of mobile silo; 8-2-3. third template of mobile silo; 8-2-4. silo connecting plate; 11-1. transition bin; 11-2. first hinge; 11-3. width adjustment molding mechanism; 11-4. second hinge; 11 -5, gradient section side plate; 11-1-1, transition chamber side plate; 11-1-2, transition chamber cover plate; 11-1-3, gradient section cover plate; 11-1-4, transition chamber connecting plate; 11-3-1, width adjustment and forming rear side plate; 11-3-2, top plate; 11-3-3, third hydraulic cylinder; 11-3-4, horizontal plate; 11-3-5, second hydraulic cylinder; 11-3-6, width adjustment and forming front side plate; 11- 3-7, fourth hydraulic cylinder; 11-3-8, positioning rod; 11-4-1, hinge connecting plate; 11-4-2, rotating shaft; 11-4-3, blocking plate; 11-5-1, side plate body; 11-5-2, clamping plate; 11-5-3, slide groove; 12-1, slide rail; 12-2, connecting frame; 12-3, forming bin; 12-4, fifth hydraulic cylinder; 12-5, thrust frame; 12-6, sliding wheel. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

[0045] Example 1

[0046] exist Figure 1 to Figure 22The present invention relates to an asphalt concrete core wall paver with stepless width adjustment, comprising a frame 5 and a crawler chassis 7. The frame 5 is provided with a cab 1, an engine 2, and a hydraulic system 3 on the front part. The engine 2 provides power for the device, and the hydraulic system 3 provides power for a material drop bin 8, a stepless width adjustment sliding form asphalt forming mechanism 11, and a transition material forming mechanism 12. An asphalt hopper 4 is arranged in the middle of the frame 5, a feeding bin 8 is arranged at the lower part of the asphalt hopper 4, a transition hopper 6 is arranged at the rear part of the frame 5, two groups of transition material forming mechanisms 12 are arranged at the lower part of the transition hopper 6, and an infinitely variable width-adjustable sliding mold asphalt forming mechanism 11 is arranged at the rear lower part of the frame 5. The infinitely variable width-adjustable sliding mold asphalt forming mechanism 11 is connected with the feeding bin 8 and is located in the middle of the two groups of transition material forming mechanisms 12. A sealing strip 10 is arranged at the lower part of the feeding bin 8 and the infinitely variable width-adjustable sliding mold asphalt forming mechanism 11. The sealing strip 10 is a strip-type structure with a width of 30 mm and a thickness of 10 mm, which is anchored at the bottom of the side panels of the feeding bin 8 and the infinitely variable width-adjustable sliding mold asphalt forming mechanism 11 to prevent the feeding bin 8 and the infinitely variable width-adjustable sliding mold asphalt forming mechanism 11 from scratching the paved asphalt core wall surface, and also to prevent the asphalt material from being squeezed out from the bottom of the feeding bin 8 and the infinitely variable width-adjustable sliding mold asphalt forming mechanism 11.

[0047] The material drop bin 8 of this embodiment is composed of a fixed bin 8-1, a mobile bin 8-2, and a first hydraulic cylinder 8-3. The fixed bin 8-1 is arranged on the upper part of the mobile bin 8-2, and the fixed bin 8-1 is fixed on the frame 5. The piston rod of the first hydraulic cylinder 8-3 is arranged on the side wall of the mobile bin 8-2, and the base of the first hydraulic cylinder 8-3 is arranged on the frame 5. Under the action of the first hydraulic cylinder 8-3, the mobile bin 8-2 can slide up and down along the fixed bin 8-1.

[0048] Specifically, the fixed silo 8-1 is composed of a first fixed silo template 8-1-1, a second fixed silo template 8-1-2, and a frame fixing plate 8-1-3. The first fixed silo template 8-1-1 and the second fixed silo template 8-1-2 are connected end to end to form a rectangular structure with upper and lower openings. A frame fixing plate 8-1-3 is arranged on the outer side wall of the second fixed silo template 8-1-2. The frame fixing plate 8-1-3 is provided with stiffening ribs and mounting holes. The fixed silo 8-1 is fixed to the frame 5 through the frame fixing plate 8-1-3. The mobile silo 8-2 is composed of a first template 8-2-1, a second template 8-2-2, a third template 8-2-3 and a silo connecting plate 8-2-4. The first template 8-2-1, the second template 8-2-2 and the connecting plate 8-2-4 are connected end to end to form a rectangular structure with upper and lower openings and a left end opening. The third template 8-2-3 is provided at the upper left end of the second template 8-2-2. The third template 8-2-3 is an L-shaped plate. The silo connecting plate 8-2-4 is connected to the left end of the stepless width adjustment sliding form asphalt molding mechanism 11. Two groups of mounting holes are processed on the lower part of the first template 8-2-1 of the mobile silo. One end of the screw conveyor 9 is installed on the drop silo 8 through the mounting holes. The screw conveyor 9 transports the asphalt in the drop silo 8 to the stepless width adjustment sliding form asphalt molding mechanism 11. The fixed silo 8-1 is located in the opening formed by the third template 8-2-3 of the mobile silo and the first template 8-2-1 of the mobile silo. The mobile silo 8-2 and the stepless width adjustment sliding form asphalt molding mechanism 11 slide up and down synchronously. When the core wall paver needs to move quickly, the mobile silo 8-2 and the stepless width adjustment sliding form asphalt molding mechanism 11 move upward, and the bottom is 20cm away from the ground, which can avoid ground obstacles and realize the rapid transfer of the core wall paver. When the core wall paver needs to pave, the mobile silo 8-2 and the stepless width adjustment sliding form asphalt molding mechanism 11 move downward to 1cm from the ground to perform asphalt paving and molding. A sealing strip 10 is provided at the bottom of the mobile silo 8-2.

[0049] The above-mentioned stepless width-adjustable sliding form asphalt molding mechanism 11 is composed of a transition bin 11-1, a first hinge 11-2, a width-adjusting molding mechanism 11-3, a second hinge 11-4, and a gradient section side plate 11-5. One end of the transition bin 11-1 is connected to the blanking bin 8, and the other end is provided with the width-adjusting molding mechanism 11-3. Gradient section side plates 11-5 are symmetrically provided on both sides of the lower part of the transition bin 11-1. One end of the gradient section side plate 11-5 is provided on the side wall of the transition bin 11-1 through the first hinge 11-2, and the other end is connected to the side wall of the width-adjusting molding mechanism 11-3 through the second hinge 11-4. The gradient section side plate 11-5 can rotate around the first hinge 11-2 to realize gradual width adjustment. Sealing strips 10 are provided at the bottom of the transition bin 11-1, the gradient section side plates 11-5, and the width-adjusting molding mechanism 11-3.

[0050] Specifically, the transition bin 11-1 is composed of a transition bin body which is connected by a transition bin side plate 11-1-1, a transition bin cover plate 11-1-2, a gradient section cover plate 11-1-3 and a transition bin connecting plate 11-1-4. A transition bin cover plate 11-1-2 is arranged on the top of two relatively arranged transition bin side plates 11-1-1. The transition bin cover plate 11-1-2 is inclined and the left end is higher than the right end. The end of the transition bin cover plate 11-1-2 is horizontally arranged with a gradient section cover plate 11-1-3. The cross-sectional shape of the gradient section cover plate 11-1-3 is an isosceles trapezoidal structure. The top of the isosceles trapezoidal structure is connected to the transition bin cover plate 11-1-2. The other end of the screw conveyor 9 is installed on the lower part of the gradient section cover plate 11-1-3 through a mounting frame. A transition bin connecting plate 11 - 1 - 4 is provided at the left end of the transition bin cover plate 11 - 1 - 2 and the transition bin side plate 11 - 1 - 1 , and the transition bin connecting plate 11 - 1 - 4 is connected to the blanking bin 8 .

[0051] The width adjustment forming mechanism 11-3 is composed of a width adjustment forming rear side plate 11-3-1, a top plate 11-3-2, a third hydraulic cylinder 11-3-3, a horizontal plate 11-3-4, a second hydraulic cylinder 11-3-5, a width adjustment forming front side plate 11-3-6, a fourth hydraulic cylinder 11-3-7, and a positioning rod 11-3-8. The width adjustment forming front side plate 11-3-6 is arranged opposite to the width adjustment forming rear side plate 11-3-1. A horizontal plate 11-3-4 is vertically arranged on the inner side of the width adjustment forming front side plate 11-3-6 and the width adjustment forming rear side plate 11-3-1. The horizontal plate 11-3-4 is inserted into the top plate 11-3-2. The top plate 11-3-2 is a hollow plate. The top plate 11- Two sets of second hydraulic cylinders 11-3-5 are vertically arranged on the upper left part of 3-2, and the third hydraulic cylinder 11-3-3 and the fourth hydraulic cylinder 11-3-7 are horizontally arranged in the middle part of the top plate 11-3-2. The bases of the third hydraulic cylinder 11-3-3 and the fourth hydraulic cylinder 11-3-7 are fixed on the top plate 11-3-2, the piston rod of the third hydraulic cylinder 11-3-3 is fixed on the front side plate 11-3-6 of the width adjustment molding, and the piston rod of the fourth hydraulic cylinder 11-3-7 is fixed on the rear side plate 11-3-1 of the width adjustment molding. Two sets of positioning rods 11-3-8 are arranged on the upper right part of the top plate 11-3-2, and the positioning rods 11-3-8 are inserted into the frame 5 and can slide up and down along the frame 5. The base of the second hydraulic cylinder 11-3-5 is fixed on the frame 5, and the piston rod is fixed on the top plate 11-3-2.

[0052] Furthermore, the gradient section side panel 11-5 is composed of a side panel body 11-5-1 and a card plate 11-5-2, a card plate 11-5-2 is arranged on the outer side of the side panel body 11-5-1, a slide groove 11-5-3 is formed between the side panel body 11-5-1 and the card plate 11-5-2, the second hinge 11-4 is composed of a hinge connecting plate 11-4-1, a rotating shaft 11-4-2, and a blocking plate 11-4-3, a blocking plate 11-4-3 is arranged in the middle of the rotating shaft 11-4-2, and hinge connecting plates 11-4-1 are arranged at both ends, the hinge connecting plate 11-4-1 is fixed on the front side panel 11-3-6 and the rear side panel 11-3-1 for width adjustment molding, and the end of the blocking plate 11-4-3 is inserted into the slide groove 11-5-3.

[0053] The second hydraulic cylinder 11-3-5 moves vertically synchronously with the first hydraulic cylinder 8-3. When the first hydraulic cylinder 8-3 and the second hydraulic cylinder 11-3-5 move, they drive the mobile silo 8-2 and the steplessly width-adjustable sliding mold asphalt molding mechanism 11 to move up and down along the fixed silo 8-1. The positioning rod 11-3-8 plays a positioning and guiding role. The third hydraulic cylinder 11-3-3 and the fourth hydraulic cylinder 11-3-7 move laterally synchronously, so that the transverse plate 11-3-4 inserted in the top plate 11-3-2 slides laterally, changing the distance between the front side plate 11-3-6 of the width-adjustable molding and the rear side plate 11-3-1 of the width-adjustable molding, and realizing the stepless width adjustment of the asphalt molding mechanism from 600 to 1000 mm. In order to prevent the transverse plate 11-3-4 from sliding off the top plate 11-3-2, limiting mechanisms are set at both ends of the top plate 11-3-2. When the distance between the width adjustment molding front side plate 11-3-6 and the width adjustment molding rear side plate 11-3-1 becomes larger, the blocking plate 11-4-3 drives the gradient section side plate 11-5 to rotate around the first hinge 11-2. While the gradient section side plate 11-5 rotates, the blocking plate 11-4-3 slides along the slide groove 11-5-3 to block the gap between the width adjustment molding front side plate 11-3-6 and the width adjustment molding rear side plate 11-3-1 and the gradient section side plate 11-5 caused by the change in the width of the width adjustment molding mechanism 11-3.

[0054] The transition silo 6 is composed of a silo body 6-1 and a discharge port 6-2. The silo body 6-1 is open at the top, has a conical structure in the middle, and has an inwardly inclined rear wall. The conical structure divides the silo body 6-1 symmetrically into two parts, and a discharge port 6-2 is provided at the bottom of the silo body 6-1. The rear wall of the silo body 6-1 is inclined to facilitate material discharge. The conical structure is used to divide the silo body 6-1 into two parts so that the transition material falls from both sides of the transition silo 6 into the transition material forming mechanism 12. In order to adapt to the structure of the transition silo 6, the transition material forming mechanism 12 is composed of a slide rail 12-1, a connecting frame 12-2, a forming bin 12-3, a fifth hydraulic cylinder 12-4, a thrust frame 12-5, and a sliding wheel 12-6. The forming bin 12-3 is upper and lower. An open rectangular structure, a connecting frame 12-2 is provided on the upper part of the outer wall of the forming bin 12-3, a sliding wheel 12-6 is provided at the bottom of the connecting frame 12-2, the sliding wheel 12-6 is provided on the slide rail 12-1, the slide rail 12-1 is installed on the frame 5, a thrust frame 12-5 is provided on one side wall of the forming bin 12-3, the thrust frame 12-5 is connected to the piston rod of the fifth hydraulic cylinder 12-4, and the base of the fifth hydraulic cylinder 12-4 is fixed on the frame 5. The transition material forming mechanism 12 is installed at the lower part of the frame 5, with one group on the front and rear sides of the stepless width adjustment sliding form asphalt forming mechanism 11. When the stepless width adjustment sliding form asphalt forming mechanism 11 is adjusted in width, the fifth hydraulic cylinder 12-4 moves to drive the forming bin 12-3 to slide forward and backward along the slide rail 12-1, so that the stepless width adjustment sliding form asphalt forming mechanism 11 and the transition material forming bin 12 move forward and backward in a consistent manner. Regardless of how the width is adjusted, the transition material always falls on both sides of the asphalt material. In order to prevent the sliding wheel 12-6 from derailing, a limit mechanism and a collision buffer mechanism are set at both ends of the slide rail 12-1. In practice, the length of the forming bin 12-3 should be ensured so that when the sliding wheel 12-6 slides to any position along the slide rail 12-1, the transition material forming mechanism 12 is always located below the discharge port 6-2 of the transition material bin 6.

[0055] The working principle of the present invention is as follows:

[0056] When the asphalt concrete core wall paver needs to be transferred, the mobile bin 8-2 and the stepless width adjustment sliding form asphalt forming mechanism 11 slide upward along the fixed silo 8-1 under the action of the first hydraulic cylinder 8-3 and the second hydraulic cylinder 11-3-5, and the mobile bin 8-2 and the stepless width adjustment sliding form asphalt forming mechanism 11 move to 20 cm from the ground to achieve the rapid transfer of the asphalt concrete core wall paver. When the asphalt concrete core wall paver needs to be paved, the mobile bin 8-2 and the stepless width adjustment sliding form asphalt forming mechanism 11 slide downward along the fixed silo 8-1 under the action of the first hydraulic cylinder 8-3 and the second hydraulic cylinder 11-3-5, and the mobile bin 8-2 and the stepless width adjustment sliding form asphalt forming mechanism 11 move to 1 cm from the ground to carry out the paving operation.

[0057] Before paving, the width of the stepless width-adjustable sliding form asphalt forming mechanism 11 is adjusted according to the width of the asphalt core wall to be paved, so that it is consistent with the paving width of the asphalt core wall, and the third hydraulic cylinder 11-3-3 and the fourth hydraulic cylinder 11-3-7 push the width-adjustable forming front side plate 11-3-6 and the width-adjustable forming rear side plate 11-3-1 to make the distance between them equal to the paving width of the asphalt core wall. Under the action of the second hinge sealing plate 11-4-3, the width-adjustable forming front side plate 11-3-6 and the width-adjustable forming rear side plate 11-3-1 drive the gradient section side plate 11-5 to rotate around the first hinge 11-2, forming a gradient section from 600mm to the paving width. The blocking plate 11-4-3 is inserted into the slide groove 11-5-3 of the gradient section side plate 11-5 and slides. As the gradient section side plate 11-5 rotates, the blocking plate 11-4-3 slides in the slide groove 11-5-3 to block the gap between the width adjustment molding front side plate 11-3-6 and the width adjustment molding rear side plate 11-3-1 and the gradient section side plate 11-5 as the width of the width adjustment molding mechanism 11-3 changes, so that the asphalt material does not squeeze out from the gap. While the width of the stepless width adjustment sliding mold asphalt molding mechanism 11 is adjusted, the fifth hydraulic cylinder 12-4 pushes the molding chamber 12-3 to slide along the slide rail 12-1, so that it is close to the stepless width adjustment sliding mold asphalt molding mechanism 11.

[0058] During paving, the asphalt mixture enters the drop bin 8 through the asphalt hopper 4, and is transported to the width adjustment molding mechanism 11-3 through two screw conveyors 9. In the transition bin 11-1, the asphalt mixture is first compressed to a height of 300mm by the inclined transition bin cover 11-1-2, and then diffused into the width adjustment molding mechanism 11-3 through the screw conveyor 9 to form an asphalt core wall. The transition bin cover 11-1-2 and the screw conveyor 9 make the asphalt mixture more compact, playing a role of pre-compression. The transition material enters the transition material molding mechanism 12 through the transition hopper 6, and falls to both sides of the width adjustment molding mechanism 11-3. When the asphalt core wall paver moves forward at a speed of 1-3m / min, it drives the stepless width adjustment sliding form asphalt molding mechanism 11 to slide forward, and the transition material falling on both sides plays a supporting role for the asphalt core wall.

[0059] After paving is completed, when it is necessary to pave core walls of different widths, the paving of asphalt core walls of different widths can be achieved by re-adjusting the width of the stepless width-adjusting sliding form asphalt forming mechanism 11.

Claims

1. An asphalt concrete core wall paver with stepless width adjustment, comprising a frame (5) and a crawler chassis (7), wherein a cab (1), an engine (2), and a hydraulic system (3) are arranged on the front of the frame (5), and characterized in that: An asphalt hopper (4) is arranged in the middle of the frame (5), a material drop bin (8) is arranged at the lower part of the asphalt hopper (4), a transition hopper (6) is arranged at the rear of the frame (5), two groups of transition material forming mechanisms (12) are arranged at the lower part of the transition hopper (6), and an infinitely variable width sliding mold asphalt forming mechanism (11) is arranged at the lower rear part of the frame (5), the infinitely variable width sliding mold asphalt forming mechanism (11) is connected to the material drop bin (8) and is located between the two groups of transition material forming mechanisms ( 12), a screw conveyor (9) is arranged in the material drop bin (8), and the screw conveyor (9) conveys the asphalt material in the material drop bin (8) to the stepless width adjustment sliding form asphalt forming mechanism (11), and the hydraulic system (3) provides power to the material drop bin (8), the stepless width adjustment sliding form asphalt forming mechanism (11), and the transition material forming mechanism (12), and a sealing strip (10) is arranged at the lower part of the material drop bin (8) and the stepless width adjustment sliding form asphalt forming mechanism (11).

2. The asphalt concrete core wall paver with stepless width adjustment according to claim 1 is characterized in that The stepless width-adjustable sliding mold asphalt molding mechanism (11) is as follows: one end of the transition bin (11-1) is connected to the blanking bin (8), and the other end is provided with a width-adjusting molding mechanism (11-3); gradient section side plates (11-5) are symmetrically provided on both sides of the lower part of the transition bin (11-1); one end of the gradient section side plate (11-5) is provided on the side wall of the transition bin (11-1) through a first hinge (11-2), and the other end is connected to the side wall of the width-adjusting molding mechanism (11-3) through a second hinge (11-4); the gradient section side plate (11-5) can rotate around the first hinge (11-2) to achieve gradual width adjustment; and sealing strips (10) are provided at the bottom of the transition bin (11-1), the gradient section side plate (11-5), and the width-adjusting molding mechanism (11-3).

3. The stepless width-adjustable asphalt concrete core wall paver according to claim 2 is characterized in that The transition bin (11-1) is composed of a transition bin body connected by a transition bin side plate (11-1-1), a transition bin cover plate (11-1-2), a gradient section cover plate (11-1-3), and a transition bin connecting plate (11-1-4). A transition bin cover plate (11-1-2) is arranged on the top of two oppositely arranged transition bin side plates (11-1-1). The transition bin cover plate (11-1-2) is arranged obliquely and the left end is higher than the right end. -1-2) is horizontally provided with a transition section cover plate (11-1-3), the cross-sectional shape of the transition section cover plate (11-1-3) is an isosceles trapezoidal structure, the top end of the isosceles trapezoidal structure is connected to the transition bin cover plate (11-1-2), the left end of the transition bin cover plate (11-1-2) and the transition bin side plate (11-1-1) is provided with a transition bin connecting plate (11-1-4), and the transition bin connecting plate (11-1-4) is connected to the drop bin (8).

4. The asphalt concrete core wall paver with stepless width adjustment according to claim 2 is characterized in that The width adjustment forming mechanism (11-3) comprises: a width adjustment forming front side plate (11-3-6) and a width adjustment forming rear side plate (11-3-1) are arranged opposite to each other; a horizontal plate (11-3-4) is vertically arranged on the inner side of the width adjustment forming front side plate (11-3-6) and the width adjustment forming rear side plate (11-3-1); the horizontal plate (11-3-4) is inserted into the top plate (11-3-2); the top plate (11-3-2) is a hollow plate; two groups of second hydraulic cylinders (11-3-5) are vertically arranged on the upper left part of the top plate (11-3-2); a third hydraulic cylinder (11-3-5) is horizontally arranged in the middle part of the top plate (11-3-2); -3-3) and a fourth hydraulic cylinder (11-3-7), the bases of the third hydraulic cylinder (11-3-3) and the fourth hydraulic cylinder (11-3-7) are fixed on the top plate (11-3-2), the piston rod of the third hydraulic cylinder (11-3-3) is fixed on the front side plate (11-3-6) of the width adjustment molding, the piston rod of the fourth hydraulic cylinder (11-3-7) is fixed on the rear side plate (11-3-1) of the width adjustment molding, and two groups of positioning rods (11-3-8) are arranged on the upper right part of the top plate (11-3-2), and the positioning rods (11-3-8) are inserted into the frame (5) and can slide up and down along the frame (5).

5. The stepless width-adjustable asphalt concrete core wall paver according to claim 2, characterized in that The gradient section side plate (11-5) comprises: a clamping plate (11-5-2) is arranged on the outer side of the side plate body (11-5-1), and a sliding groove (11-5-3) is formed between the side plate body (11-5-1) and the clamping plate (11-5-2).

6. The stepless width-adjustable asphalt concrete core wall paver according to claim 5, characterized in that The second hinge (11-4) is as follows: a blocking plate (11-4-3) is arranged in the middle of the rotating shaft (11-4-2), hinge connecting plates (11-4-1) are arranged at both ends, the hinge connecting plates (11-4-1) are fixed on the width adjustment molding front side plate (11-3-6) and the width adjustment molding rear side plate (11-3-1), and the end of the blocking plate (11-4-3) is inserted into the slide groove (11-5-3).

7. The stepless width-adjustable asphalt concrete core wall paver according to claim 1, characterized in that The drop bin (8) comprises: a fixed bin (8-1) arranged on the upper part of a mobile bin (8-2), the fixed bin (8-1) being fixed on a frame (5), a piston rod of a first hydraulic cylinder (8-3) being arranged on a side wall of the mobile bin (8-2), and a base of the first hydraulic cylinder (8-3) being arranged on the frame (5).

8. The steplessly width-adjustable asphalt concrete core wall paver according to claim 7 is characterized in that The fixed silo (8-1) is composed of a first template (8-1-1) and a second template (8-1-2) connected end to end to form a rectangular structure with upper and lower openings, and a frame fixing plate (8-1-3) is arranged on the outer side wall of the second template (8-1-2); the mobile silo (8-2) is composed of a first template (8-2-1) and a second template (8-2-2) connected end to end to form a rectangular structure with upper and lower openings. The mobile silo has an opening at the front and a rectangular structure with an opening at the left end. The mobile silo third template (8-2-3) is arranged at the upper left end of the second template (8-2-2). The mobile silo third template (8-2-3) is an L-shaped plate. The silo connecting plate (8-2-4) is connected to the left end of the stepless width adjustment sliding mold asphalt forming mechanism (11). Two groups of mounting holes are processed at the lower part of the mobile silo first template (8-2-1). One end of the screw conveyor (9) passes through the mounting hole and is installed on the drop silo (8).

9. The stepless width-adjustable asphalt concrete core wall paver according to claim 1, characterized in that The transition silo (6) is as follows: the silo body (6-1) is open at the top, a conical structure is arranged in the middle, and the rear wall is inclined inwards. The conical structure divides the silo body (6-1) symmetrically into two parts, and the lower part of the silo body (6-1) is provided with a discharge port (6-2).

10. The steplessly width-adjustable asphalt concrete core wall paver according to claim 9, characterized in that The transition material forming mechanism (12) comprises: a forming bin (12-3) having a rectangular structure with upper and lower openings; a connecting frame (12-2) is arranged on the upper part of the outer wall of the forming bin (12-3); a sliding wheel (12-6) is arranged on the bottom of the connecting frame (12-2); the sliding wheel (12-6) is arranged on a slide rail (12-1); the slide rail (12-1) is installed on a frame (5); a thrust frame (12-5) is arranged on one side wall of the forming bin (12-3); the thrust frame (12-5) is connected to the piston rod of a fifth hydraulic cylinder (12-4); and the base of the fifth hydraulic cylinder (12-4) is fixed on the frame (5).

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