Aggregate feeding device and asphalt mixture mixing equipment

Abstract

The utility model relates to the technical field of asphalt mixture mixing equipment, in particular to an aggregate feeding device and asphalt mixture mixing equipment, which comprises a grading feeding module, a feeding module, a discharging module and a discharging module, and the crushing module is arranged on the grading feeding module and used for crushing the aggregate. According to the utility model, the crushing module is additionally arranged to crush the aggregate, so that the problem of high labor cost caused by the fact that the aggregate which does not conform to the specification needs to be screened and recycled in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt mixture mixing equipment, in particular to an aggregate feeding device and asphalt mixture mixing equipment. Background Art

[0002] Direct dry mixing asphalt refers to a method in which the modifier and warm mix aid are directly put into the mixer and mixed with aggregate and asphalt.

[0003] In the prior art, in the process of mixing asphalt using the direct dry mixing method, in order to ensure the quality of the asphalt mixture, the waste materials with a particle size greater than 40 mm mixed in the aggregate need to be screened out before the aggregate is put into the mixing device, and the waste materials need to be recycled, crushed and reused, which increases the labor cost required for the asphalt mixture mixing operation. Utility Model Content

[0004] In view of the technical problem of high labor cost in the prior art, the first embodiment of the present invention provides an aggregate feeding device, comprising:

[0005] A graded feeding module is arranged on an external carrying device and is used for graded feeding of aggregates;

[0006] The crushing module is arranged on the grading feeding module and is used for crushing and processing aggregates.

[0007] Furthermore, the graded feeding module includes:

[0008] A loading conveyor, fixedly arranged on the carrying device, is used for conveying aggregate;

[0009] The bearing shell is fixedly arranged on the bearing device, and the top of the bearing shell adopts an open design;

[0010] A plurality of screening components are arranged on the bearing shell, and the plurality of screening components are stacked in sequence along the height direction of the bearing shell for screening aggregates.

[0011] Further, the screening component includes:

[0012] A discharge port is provided on the side wall of the bearing shell, and the discharge port is connected with the input end of the feeding conveyor;

[0013] The guide plate is fixedly arranged on the bottom wall of the inner cavity of the discharge port, the head end of the guide plate extends into the inner cavity of the bearing shell, and the tail end of the guide plate is connected with the input end of the feeding conveyor;

[0014] A baffle plate is movably arranged in the discharge port, the baffle plate matches the shape of the discharge port, and the top of the baffle plate is hinged to the inner cavity side wall of the discharge port to close the discharge port;

[0015] A torsion spring is provided at the hinge between the baffle plate and the inner wall of the discharge port, and is used to elastically support the baffle plate to close the discharge port;

[0016] The sieve plate is movably arranged in the inner cavity of the bearing shell. The sieve plate matches the radial cross-sectional shape of the inner cavity of the bearing shell. The head end of the sieve plate adopts an open design. The head end of the sieve plate is connected with the guide plate for screening aggregates.

[0017] A pair of floating mechanisms are arranged on the side walls of the bearing shell on both sides thereof, and the pair of floating mechanisms are connected with the sieve plate to drive the sieve plate to float up and down in the inner cavity of the bearing shell.

[0018] Furthermore, the floating mechanism comprises:

[0019] A pair of guide holes are provided on the side wall of the bearing shell, the guide holes are oblong holes, and the guide holes are provided along the height direction of the bearing shell;

[0020] A first assembly ring is fixedly arranged at the bottom of the sieve plate, the first assembly ring is located at the head end of the sieve plate, the first assembly ring matches the position of one of the guide holes, and the first assembly ring is a circular ring-shaped member;

[0021] A second assembly ring is fixedly arranged at the bottom of the sieve plate. The second assembly ring is located at the rear end of the sieve plate. The second assembly ring matches the position of another guide hole. The second assembly ring is an oblong ring-shaped member. The second assembly ring is arranged along the length direction of the sieve plate.

[0022] A pair of linear modules are fixedly arranged on the side wall of one side of the bearing housing, and the pair of linear modules are respectively matched with the positions of the pair of guide holes;

[0023] A pair of latches are fixedly arranged at the execution ends of a pair of linear modules, and the pair of latches are movably connected with a pair of guide holes, one of the latches is movably connected with the first assembly ring, and the other latch is movably connected with the second assembly ring, so as to drive the sieve plate to float up and down along the guide of the guide holes.

[0024] Furthermore, the crushing module contains:

[0025] The assembly shell is fixedly arranged on the graded feeding module, and the bottom of the assembly shell adopts an open design;

[0026] A grid plate is fixedly arranged at the bottom port of the assembly shell, and the grid plate is arranged along the radial direction of the assembly shell;

[0027] A pair of crushing rollers are rotatably arranged in the inner cavity of the assembly shell, the top ends of the crushing rollers are rotatably connected to the top wall of the inner cavity of the assembly shell, and the bottom ends of the crushing rollers are rotatably connected to the grid plate;

[0028] A pair of push blocks are movably arranged in the inner cavity of the assembly shell, and the pair of push blocks are arranged on both sides of the plane where the central axis of the pair of crushing rollers is located. The cavity between the head end of any push block and the pair of crushing rollers is a storage cavity, and the push blocks are used to push the aggregate in the storage cavity to gather toward the gap between the pair of crushing rollers;

[0029] A pair of electric telescopic rods are fixedly arranged on the assembly housing, and the execution ends of the pair of electric telescopic rods are respectively connected to a pair of push blocks, so as to push the push blocks to move toward or away from the pair of crushing roller shafts;

[0030] A feed channel is fixedly arranged on the top of the assembly shell, and an output end of the feed channel is communicated with one of the storage chambers;

[0031] A reducer is arranged on the top of the assembly shell, and a pair of output ends of the reducer are respectively connected to a pair of crushing roller shafts to drive the pair of crushing roller shafts to rotate;

[0032] The first motor is arranged on the reducer, and the driving end of the first motor is connected to the input end of the reducer for driving the reducer to operate.

[0033] Furthermore, the crushing module also includes: two groups of sliding blocks, which are respectively fixedly arranged at the bottom of a pair of push blocks, and any group of sliding blocks are respectively movably inserted into a plurality of grid holes of the grid plate.

[0034] The second embodiment of the present utility model provides an asphalt mixture mixing device, comprising the above-mentioned aggregate feeding device and a mixing tank, wherein the mixing tank is connected to the graded feeding module and is used for mixing the asphalt mixture.

[0035] Furthermore, the mixing tank comprises:

[0036] The tank body is fixedly arranged on the carrying device, the top of the tank body adopts an open design, the bottom of the inner cavity of the tank body is an arc-shaped curved surface, and the inner diameter of the bottom of the inner cavity of the tank body is smaller than the inner diameter of the top of the inner cavity of the tank body;

[0037] A discharge port is arranged at the bottom of the tank body, the discharge port is connected to the inner cavity of the tank body, and is used to output the mixed asphalt mixture;

[0038] A feeding channel is fixedly arranged on the side wall of the tank body, the output end of the feeding channel is communicated with the inner cavity of the tank body, and the input end of the feeding channel is connected to the graded feeding module for conveying aggregates;

[0039] A plurality of feed pipes are fixedly arranged on the tank body, the output end of any feed pipe is connected to the inner cavity of the tank body, and the input end of any feed pipe is connected to an external feed device for conveying modifier, warm mix aid and asphalt;

[0040] A plurality of electrically controlled valves are respectively arranged on a plurality of feed pipes to control the on and off of the feed pipes;

[0041] A top cover, fixedly buckled at the top port of the tank body;

[0042] The mixing assembly is arranged on the top cover and is used for mixing the aggregate, asphalt, modifier and warm mix aid in the inner cavity of the tank body.

[0043] Furthermore, the mixing component comprises:

[0044] A second motor is fixedly arranged on the top cover;

[0045] The stirring paddle is rotatably arranged on the top cover, the top end of the stirring paddle is connected to the driving end of the second motor, the stirring paddle is located in the inner cavity of the tank body, and is used for mixing the aggregate, asphalt, modifier and warm mix aid located in the inner cavity of the tank body.

[0046] Further, the stirring paddle comprises:

[0047] A transmission shaft is vertically arranged in the inner cavity of the tank body along the axial direction of the tank body, the top end of the transmission shaft is rotatably connected to the top cover, and the top end of the transmission shaft is connected to the driving end of the second motor;

[0048] A plurality of stirring frames are fixedly arranged on the axial side wall of the transmission shaft, and the plurality of stirring frames are distributed in a circular array around the transmission shaft;

[0049] The spiral blade is fixedly arranged on the circumferential side wall of the transmission shaft along the axial direction of the transmission shaft, and the spiral blade is spirally arranged around the transmission shaft.

[0050] An aggregate feeding device and an asphalt mixture mixing device provided by the embodiment of the utility model have the following beneficial effects:

[0051] 1. Embodiment 1 of the present invention crushes aggregates with a particle size greater than 40 mm by adding a crushing module, so as to improve the problem of high labor costs caused by the need to screen and recover aggregates that do not meet the specifications in the prior art.

[0052] 2. The second embodiment of the present invention screens the aggregate by adding a graded feeding module, and feeds the aggregate into a mixing tank in batches according to specifications for mixing, thereby improving the mixing efficiency of the device for asphalt mixture.

[0053] 3. The crushing module of the first embodiment of the utility model pushes the aggregate through the gap between the pair of crushing rollers and moves back and forth in the pair of storage chambers through a pair of push blocks on the control panel, so as to enhance the crushing effect of the pair of crushing rollers on the aggregate.

[0054] 4. Embodiment 2 of the utility model controls the agitator paddle by the second motor to mix the asphalt mixture in the tank body, so that during the mixing of the asphalt mixture, the agitator paddle can use the spiral blade to flip the mixture at the bottom of the inner cavity of the tank body upward, and at the same time use the agitator frame to stir the asphalt mixture along the circumference of the tank body, thereby enhancing the mixing effect of the mixing tank on the asphalt mixture.

[0055] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic diagram of the assembly according to the first embodiment of the utility model;

[0057] Figure 2 It is a schematic diagram of the assembly of the graded feeding module according to the first embodiment of the utility model (the housing of the load-bearing shell and the housing of the feeding conveyor are processed in perspective);

[0058] Figure 3 It is an overall cross-sectional view of the graded feeding module according to the first embodiment of the utility model (the feeding conveyor is hidden);

[0059] Figure 4 This is a schematic diagram of the structural decomposition of the graded feeding module according to the first embodiment of the utility model (the feeding conveyor is hidden);

[0060] Figure 5 It is a schematic diagram of the assembly of the floating mechanism according to the first embodiment of the utility model;

[0061] Figure 6 It is a schematic diagram of the assembly of the crushing module according to an embodiment of the utility model (the assembly housing is processed in perspective);

[0062] Figure 7 This is a schematic diagram of the internal structure of a crushing module according to the first embodiment of the present utility model;

[0063] Figure 8 It is a schematic diagram of the assembly between the push block, the sliding block and the grid plate according to the first embodiment of the utility model;

[0064] Fig. 9 This is a schematic diagram of the assembly of a mixing tank according to the second embodiment of the utility model (the tank body is processed in perspective).

[0065] Description of the accompanying drawings:

[0066] 1-grading feeding module, 11-feeding conveyor, 12-carrying shell, 131-discharging port, 132-guide plate, 133-blocking plate, 134-sieve plate, 135-floating mechanism, 1351-guide hole, 1352-first assembly ring, 1353-second assembly ring, 1354-linear module, 1355-latch, 2-mixing tank, 21-tank body, 211-discharging port, 22-feeding channel, 2 3-feeding pipe, 24-electrically controlled valve, 25-top cover, 26-second motor, 271-transmission shaft, 272-mixing frame, 273-spiral blade, 3-crushing module, 31-assembly shell, 311-storage chamber, 32-grid plate, 321-grid hole, 33-crushing roller shaft, 34-push block, 341-slider, 35-electric telescopic rod, 36-feeding channel, 37-reducer, 38-first motor. DETAILED DESCRIPTION

[0067] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0068] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only the directions of the reference drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention. In addition, in all embodiments, the same reference numerals represent the same elements.

[0069] First, combine Figures 1 to 9 Description According to the utility model, an aggregate feeding device and an asphalt mixture mixing device are proposed, which are used for mixing asphalt mixture and have a wide range of application scenarios.

[0070] like Figure 1 As shown, the first embodiment of the utility model provides an aggregate feeding device, comprising: a grading feeding module 1, which is arranged on a carrying device and is used for grading the feeding of aggregates; a crushing module 3, which is arranged on the grading feeding module 1 and is used for crushing and processing aggregates with a particle size greater than 40 mm.

[0071] When the equipment is running, the user puts the aggregate to be mixed into the crushing module 3, and the crushing module 3 directly puts the aggregate that meets the specifications into the grading feeding module 1, retains the aggregate with a particle size greater than 40 mm, and crushes it. After the crushing process, the aggregate that meets the specification requirements enters the grading feeding module 1 through the crushing module 3; next, the grading feeding module 1 screens the incoming aggregate according to the specifications, and puts it into the mixing tank 2 in multiple batches, and finally the mixing tank 2 mixes it with asphalt, modifier, and warm mix aid to form an asphalt mixture.

[0072] Further, if Figure 1 , Figure 2 As shown, the grading feeding module 1 includes: a feeding conveyor 11, which is fixedly arranged on a carrying device and is used to convey aggregates; a carrying shell 12, which is fixedly arranged on the carrying device, and the top of the carrying shell 12 adopts an open design; a plurality of screening components, which are arranged on the carrying shell 12, and the plurality of screening components are stacked in sequence along the height direction of the carrying shell 12, and are used to screen aggregates.

[0073] Further, if Figure 1~Figure 5 As shown, the screening assembly includes: a discharge port 131, which is opened on the side wall of the bearing shell 12, and the discharge port 131 is connected to the input end of the feeding conveyor 11; a guide plate 132, which is fixedly arranged on the bottom wall of the inner cavity of the discharge port 131, and the head end of the guide plate 132 extends into the inner cavity of the bearing shell 12, and the tail end of the guide plate 132 is connected to the input end of the feeding conveyor 11; a baffle plate 133, which is movably arranged in the discharge port 131, and the baffle plate 133 matches the shape of the discharge port 131, and the top of the baffle plate 133 is hinged to the inner cavity side wall of the discharge port 131, which is used to close the discharge port 131; a torsion spring (not shown in the figure) is arranged between the baffle plate 133 and the inner cavity side wall of the discharge port 131 The hinge between the side walls of the inner cavity of the discharge port 131 is used to elastically support the baffle plate 133 to close the discharge port 131; the sieve plate 134 is movably arranged in the inner cavity of the load-bearing shell 12, and the sieve plate 134 matches the radial cross-sectional shape of the inner cavity of the load-bearing shell 12. The head end of the sieve plate 134 adopts an open design, and the head end of the sieve plate 134 is connected to the guide plate 132, and the head end of the sieve plate 134 for screening the aggregate is located on the upper side of the head end of the guide plate 132; a pair of floating mechanisms 135 are relatively arranged on the side walls on both sides of the load-bearing shell 12, and the pair of floating mechanisms 135 are connected to the sieve plate 134, and are used to drive the sieve plate 134 to float up and down in the inner cavity of the load-bearing shell 12.

[0074] Further, if Figure 1~Figure 5As shown, the floating mechanism 135 includes: a pair of guide holes 1351, which are opened on the side wall of the bearing shell 12, and the guide holes 1351 are oblong holes, and the guide holes 1351 are arranged along the height direction of the bearing shell 12; a first assembly ring 1352, which is fixedly arranged at the bottom of the sieve plate 134, and the first assembly ring 1352 is located at the head end of the sieve plate 134, and the first assembly ring 1352 matches the position of one of the guide holes 1351, and the first assembly ring 1352 is a circular ring-shaped member; a second assembly ring 1353, which is fixedly arranged at the bottom of the sieve plate 134, and the second assembly ring 1353 is located at the tail end of the sieve plate 134, and the second assembly ring 1353 matches the position of the other guide hole 1351, and the second assembly ring 1353 is an oblong ring-shaped member, and the second assembly ring 135 3 is arranged along the length direction of the sieve plate 134; a pair of linear modules 1354 are fixedly arranged on the side wall of one side of the bearing shell 12, and the pair of linear modules 1354 are matched with the positions of the pair of guide holes 1351 respectively; a pair of latches 1355 are fixedly arranged at the execution ends of the pair of linear modules 1354 respectively, and the pair of latches 1355 are movably plugged with the pair of guide holes 1351 respectively, one of the latches 1355 is movably plugged with the first assembly ring 1352, and the other latch 1355 is movably plugged with the second assembly ring 1353, which is used to drive the sieve plate 134 to float up and down along the guide of the guide holes 1351. When the sieve plate 134 is placed horizontally, one of the latches 1355 is located at one end of the second assembly ring 1353 close to the discharge port 131.

[0075] During the operation of the equipment, the aggregate output by the crushing module 3 falls into the inner cavity of the carrier shell 12 through the top port of the carrier shell 12. At the same time, a pair of linear modules 1354 of the floating mechanism 135 of the multi-layer screening assembly arranged on the carrier shell 12 drives a pair of latches 1355 arranged thereon to float up and down synchronously along the guide of the guide hole 1351, and then utilizes the movable plug-in cooperation between the pair of latches 1355 and the first assembly ring 1352 and the second assembly ring 1353 to drive the screening The plate 134 vibrates up and down, and the sieve plate 134 is used to screen the aggregates falling into it. During the screening process, the aggregates smaller than the sieve hole diameter of the sieve plate 134 pass through the sieve plate 134 and fall into the sieve plate of the screening component located at the lower layer, and the aggregates larger than the sieve hole diameter of the sieve plate 134 are retained in the sieve plate 134. According to the above process, the multi-layer screening component arranged inside the carrier shell 12 is used to screen the aggregates entering the carrier shell 12 according to the aggregate specifications, so that the aggregates with smaller specifications fall into the lower screening component. The aggregate with larger specifications falls into the sieve plate 134 of the upper screening component; when the graded feeding module 1 is in the aggregate feeding mode, first, the linear module 1354 near the tail end of the sieve plate 134 drives the latch 1355 arranged thereon to move upward, lifts the tail end of the sieve plate 134 upward, and uses the vertical walls on both sides of the sieve plate 134 to push the baffle plate 133 open. At the same time, since the sieve plate 134 is tilted toward the head end as a whole, the aggregate retained in the sieve plate 134 passes through the opening at the head end of the sieve plate 134. The aggregate rolls down to the guide plate 132, and then rolls down along the guide of the guide plate 132 to the input end of the loading conveyor 11, and finally the loading conveyor 11 transports the aggregate to the mixing tank 2; in the feeding process of the graded feeding module 1, the aggregate with larger particle size is preferentially fed into the mixing tank 2 for mixing, and then the aggregate with smaller particle size is fed into the mixing tank 2 for mixing, so that in the process of mixing the aggregates in the mixing tank 2, the aggregate with smaller particle size located in the upper layer can gradually sink to the lower layer, so as to improve the mixing efficiency and mixing effect of the mixing tank 2.

[0076] Further, if Figure 1 , Figure 6~Figure 8As shown, the crushing module 3 includes: an assembly shell 31, which is fixedly arranged on the grading feeding module 1, and the bottom of the assembly shell 31 adopts an open design; a grid plate 32, which is fixedly arranged at the bottom port of the assembly shell 31, and the grid plate 32 is arranged along the radial direction of the assembly shell 31; a pair of crushing roller shafts 33, which are rotatably arranged in the inner cavity of the assembly shell 31, and the top end of the crushing roller shaft 33 is rotatably connected to the top wall of the inner cavity of the assembly shell 31, and the bottom end of the crushing roller shaft 33 is rotatably connected to the grid plate 32; a pair of push blocks 34, which are movably arranged in the inner cavity of the assembly shell 31, and the pair of push blocks 34 are arranged on both sides of the plane where the central axes of the pair of crushing roller shafts 33 are located, and the cavity between the head end of any push block 34 and the pair of crushing roller shafts 33 is a storage cavity 311, and the push block 34 is used to push the material in the storage cavity The aggregate in 311 gathers toward the gap between a pair of crushing roller shafts 33; a pair of electric telescopic rods 35 are fixedly arranged on the assembly shell 31, and the execution ends of the pair of electric telescopic rods 35 are respectively connected to a pair of push blocks 34, which are used to push the push blocks 34 to move toward or away from the pair of crushing roller shafts 33; a feed channel 36 is fixedly arranged on the top of the assembly shell 31, and the output end of the feed channel 36 is connected to one of the storage chambers 311; a reducer 37 is arranged on the top of the assembly shell 31, and a pair of output ends of the reducer 37 are respectively connected to a pair of crushing roller shafts 33, which are used to drive the pair of crushing roller shafts 33 to rotate; a first motor 38 is arranged on the reducer 37, and the driving end of the first motor 38 is connected to the input end of the reducer 37, which is used to drive the reducer 37 to operate.

[0077] Further, if Figure 1 , Figure 6~Figure 8 As shown, the crushing module 3 further includes: two groups of sliders 341 , which are respectively fixedly arranged at the bottom of a pair of push blocks 34 , and any group of sliders 341 are respectively movably inserted into a plurality of grid holes 321 of the grid plate 32 .

[0078] During the operation of the equipment, while one of the electric telescopic rods 35 pushes the push block 34 to move toward the crushing roller shaft 33, the other push block 34 is in a stationary state. After the aggregate is put into the storage chamber 311 through the feeding channel 36, the aggregate that meets the specifications falls into the supporting shell 12 through the grid hole 321, and the aggregate with a particle size greater than 40 mm is retained in the storage chamber 311. At this time, the electric telescopic rod 35 drives the push block 34 to move toward the pair of crushing roller shafts 33, and the push block 34 is used to push the aggregate retained in the storage chamber 311 to the gap between the pair of crushing roller shafts 33, and the pair of crushing roller shafts 33 is used to crush the aggregate, so that the aggregate passes through the gap between the pair of crushing roller shafts 33 and enters the other storage chamber 311. Before the current push block 34 contacts the crushing roller shaft 33, the electric The movable telescopic rod 35 drives it to reset. At the same time, the first motor 38 drives the reducer 37 to run in the reverse direction. The reducer 37 drives the pair of crushing rollers 33 to rotate in the reverse direction. The other electric telescopic rod 35 drives the other push block 34 to slide toward the pair of crushing rollers 33. The push block 34 located in the other storage chamber 311 is used to push the aggregate retained in the other storage chamber 311 to move toward the pair of crushing rollers 33, and the pair of crushing rollers 33 are used to crush it again, and so on and so forth, so as to enhance the crushing effect of the crushing module 3 on the aggregate retained in the storage chamber 311; during the displacement of the push block 34, the slider 341 arranged at the bottom of the push block 34 slides along the guide of the grid hole 321, thereby cleaning the aggregate stuck in the grid hole 321, thereby enhancing the practicality of the device.

[0079] The second embodiment of the present utility model provides an asphalt mixture plate and equipment, comprising the above-mentioned aggregate feeding device and a mixing tank 2, wherein the mixing tank 2 is connected to the graded feeding module 1 and is used for mixing the asphalt mixture.

[0080] Further, if Figure 1 , Fig. 9As shown, the mixing tank 2 comprises: a tank body 21, which is fixedly arranged on a carrying device, the top of the tank body 21 is open-type, and a discharge port 211 is arranged at the bottom of the tank body 21 for discharging the mixed asphalt mixture. Preferably, a heating device (not shown in the figure) is arranged on the tank body 21 for adjusting the temperature in the inner cavity of the tank body; a feeding channel 22, which is fixedly arranged on the side wall of the tank body 21, the output end of the feeding channel 22 is connected to the inner cavity of the tank body 21, and the input end of the feeding channel 22 is connected to the output end of the feeding conveyor 11 of the graded feeding module for discharging Aggregate delivery; a plurality of feed pipes 23 are fixedly arranged on the tank body 21, the output end of any feed pipe 23 is connected to the inner cavity of the tank body 21, and the input end of any feed pipe 23 is connected to an external feed device for delivering modifiers, warm mix aids or asphalt; a plurality of electrically controlled valves 24 are respectively arranged on the feed pipes 23 for controlling the on and off of the feed pipes 23; a top cover 25 is fixedly buckled at the top port of the tank body 21; a mixing assembly is arranged on the top cover 25, and is used to mix the aggregate, asphalt, modifier and warm mix aid in the inner cavity of the tank body 21.

[0081] Further, if Figure 1 , Fig. 9 As shown, the mixing assembly includes: a second motor 26, which is fixedly arranged on the top cover 25; a stirring paddle, which is rotatably arranged on the top cover 25, and the top end of the stirring paddle is connected to the driving end of the second motor 26. The stirring paddle is located in the inner cavity of the tank body 21 and is used to mix the aggregate, asphalt, modifier and warm mix aid located in the inner cavity of the tank body 21.

[0082] Further, if Figure 1 , Fig. 9 As shown, the stirring paddle includes: a transmission shaft 271, which is vertically arranged in the inner cavity of the tank body 21 along the axial direction of the tank body 21, the top end of the transmission shaft 271 is rotatably connected to the top cover 25, and the top end of the transmission shaft 271 is connected to the driving end of the second motor 26; a plurality of stirring frames 272, which are fixedly arranged on the axial side wall of the transmission shaft 271, and the plurality of stirring frames 272 are distributed in a circular array around the transmission shaft 271.

[0083] Further, if Figure 1 , Fig. 9 As shown, the stirring paddle also includes: a spiral blade 273, which is fixedly arranged on the circumferential side wall of the transmission shaft 271 along the axial direction of the transmission shaft 271, and the spiral blade 273 is spirally arranged around the transmission shaft 271; the bottom of the inner cavity of the tank body 21 is an arc-shaped surface, and the inner diameter of the bottom of the inner cavity of the tank body 21 is smaller than the inner diameter of the top of the inner cavity of the tank body 21.

[0084] During the operation of the equipment, the aggregate is fed into the tank body 21 through the feeding channel 22, the asphalt is fed into the tank body 21 through one of the feeding pipes 23, the modifier and the warm mixing aid are fed into the tank body 21 through the other feeding pipe 23, and the second motor 26 drives the stirring paddle to rotate in the tank body 21, thereby mixing the aggregate, asphalt, modifier and warm mixing aid in the tank body 21 to form an asphalt mixture; in the process of the stirring paddle mixing the asphalt mixture, the transmission shaft 271 drives the spiral blade 273 to rotate to turn the asphalt mixture in the lower layer upwards, and at the same time, the transmission shaft 271 drives the mixing frame 272 to rotate along the circumference of the tank body 21 to stir the asphalt mixture in the tank body 21 to enhance the mixing effect of the stirring paddle.

[0085] Above, refer to Figures 1 to 9 A direct-invested dry-mix asphalt mixture mixing device according to an embodiment of the utility model is described, which has the following beneficial effects:

[0086] 1. The device crushes the aggregate by adding a crushing module 3 to improve the problem of high labor costs in the prior art caused by the need to screen and recover the aggregate that does not meet the specifications.

[0087] 2. The device screens the aggregate by adding a graded feeding module 1, and feeds the aggregate into the mixing tank 2 in batches according to specifications for mixing, thereby improving the mixing efficiency of the device for asphalt mixed materials and enhancing the practicability of the device.

[0088] 3. The crushing module 3 of the device pushes the aggregate through the gap between the pair of crushing rollers 33 and moves back and forth in the pair of storage chambers 311 through the pair of push blocks 34 of the control panel, so as to enhance the crushing effect of the pair of crushing rollers 33 on the aggregate.

[0089] 4. In the second embodiment of the present invention, the second motor 26 is used to control the stirring paddle to mix the asphalt mixture in the tank body 21, so that during the mixing of the asphalt mixture, the stirring paddle can use the spiral blade 273 to flip the mixture at the bottom of the inner cavity of the tank body 21 upward, and at the same time use the stirring frame 272 to stir the asphalt mixture along the circumference of the tank body 21, thereby enhancing the mixing effect of the mixing tank 2 on the asphalt mixture.

[0090] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0091] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. An aggregate feeding device, characterized in that: Include: A graded feeding module is arranged on an external carrying device and is used for graded feeding of aggregates; A crushing module, arranged on the grading feeding module, for crushing and processing the aggregate; The graded feeding module comprises: A feeding conveyor, fixedly arranged on the carrying device, for conveying the aggregate; A bearing shell is fixedly arranged on the bearing device, and the top of the bearing shell adopts an open design; A plurality of screening components are arranged on the bearing shell, and the plurality of screening components are stacked in sequence along the height direction of the bearing shell to screen the aggregate; The screening component comprises: A discharge port is provided on the side wall of the bearing shell, and the discharge port is communicated with the input end of the feeding conveyor; A guide plate is fixedly arranged on the bottom wall of the inner cavity of the discharge port, the head end of the guide plate extends into the inner cavity of the bearing shell, and the tail end of the guide plate is connected with the input end of the feeding conveyor; A baffle plate, movably arranged in the discharge port, the baffle plate matches the shape of the discharge port, the top of the baffle plate is hinged to the inner cavity side wall of the discharge port, and is used to close the discharge port; A torsion spring, disposed at a hinge between the baffle plate and the inner cavity side wall of the discharge port, and used for elastically supporting the baffle plate to close the discharge port; A sieve plate is movably arranged in the inner cavity of the bearing shell, the sieve plate matches the radial cross-sectional shape of the inner cavity of the bearing shell, the head end of the sieve plate adopts an open design, and the head end of the sieve plate is connected with the guide plate to screen the aggregate; A pair of floating mechanisms are arranged on the side walls of two sides of the bearing shell opposite to each other. The pair of floating mechanisms are connected to the sieve plate and are used to drive the sieve plate to float up and down in the inner cavity of the bearing shell.

2. The aggregate feeding device according to claim 1, characterized in that: The floating mechanism comprises: A pair of guide holes are provided on the side wall of the bearing shell, wherein the guide holes are oblong holes and are arranged along the height direction of the bearing shell; A first assembly ring, fixedly arranged at the bottom of the sieve plate, the first assembly ring is located at the head end of the sieve plate, the first assembly ring matches the position of one of the guide holes, and the first assembly ring is a circular ring-shaped member; A second assembly ring is fixedly arranged at the bottom of the sieve plate, the second assembly ring is located at the rear end of the sieve plate, the second assembly ring matches the position of another guide hole, the second assembly ring is an oblong ring-shaped member, and the second assembly ring is arranged along the length direction of the sieve plate; A pair of linear modules are fixedly arranged on the side wall of one side of the bearing housing, and the pair of linear modules are respectively matched with the positions of the pair of guide holes; A pair of pins are respectively fixedly arranged at the execution ends of the pair of linear modules, and the pair of pins are movably connected with the pair of guide holes respectively, one of the pins is movably connected with the first assembly ring, and the other pin is movably connected with the second assembly ring, for driving the sieve plate to float up and down along the guide of the guide holes.

3. The aggregate feeding device according to claim 1, characterized in that: The crushing module comprises: An assembly shell is fixedly arranged on the grading feeding module, and the bottom of the assembly shell adopts an open design; A grid plate, fixedly arranged at the bottom port of the assembly shell, wherein the grid plate is arranged along the radial direction of the assembly shell; A pair of crushing roller shafts are rotatably arranged in the inner cavity of the assembly shell, the top ends of the crushing roller shafts are rotatably connected to the top wall of the inner cavity of the assembly shell, and the bottom ends of the crushing roller shafts are rotatably connected to the grid plate; A pair of push blocks, movably arranged in the inner cavity of the assembly shell, the pair of push blocks are arranged on both sides of the plane where the central axis of the pair of crushing rollers is located, the cavity between the head end of any one of the push blocks and the pair of crushing rollers is a storage cavity, and the push blocks are used to push the aggregate in the storage cavity to gather toward the gap between the pair of crushing rollers; A pair of electric telescopic rods are fixedly arranged on the assembly housing, and the execution ends of the pair of electric telescopic rods are respectively connected to the pair of push blocks, so as to push the push blocks to move toward or away from the pair of crushing rollers; A feed channel, fixedly arranged on the top of the assembly shell, wherein the output end of the feed channel is connected to one of the storage chambers; A reducer is arranged on the top of the assembly shell, and a pair of output ends of the reducer are respectively connected to the pair of crushing roller shafts to drive the pair of crushing roller shafts to rotate; The first motor is arranged on the reducer, and the driving end of the first motor is connected to the input end of the reducer for driving the reducer to operate.

4. The aggregate feeding device according to claim 3, characterized in that: The crushing module further comprises: two groups of sliding blocks, which are respectively fixedly arranged at the bottom of the pair of push blocks, and any group of the sliding blocks are respectively movably inserted into a plurality of grid holes of the grid plate.

5. An asphalt mixture mixing equipment, characterized in that: It comprises the aggregate feeding device and the mixing tank as described in any one of claims 1 to 4, and the mixing tank is connected to the graded feeding module.

6. The asphalt mixture mixing equipment according to claim 5, characterized in that: The mixing tank comprises: A tank body is fixedly arranged on the carrying device, the top of the tank body adopts an open design, the bottom of the inner cavity of the tank body is an arc-shaped curved surface, and the inner diameter of the bottom of the inner cavity of the tank body is smaller than the inner diameter of the top of the inner cavity of the tank body; A discharge port is arranged at the bottom of the tank body, the discharge port is communicated with the inner cavity of the tank body, and is used to output the mixed asphalt mixture; A feeding channel is fixedly arranged on the side wall of the tank body, the output end of the feeding channel is communicated with the inner cavity of the tank body, and the input end of the feeding channel is connected with the grading feeding module for conveying the aggregate; A plurality of feed pipes are fixedly arranged on the tank body, the output end of any of the feed pipes is communicated with the inner cavity of the tank body, and the input end of any of the feed pipes is connected with an external feed device for conveying modifier, warm mix aid and asphalt; A plurality of electrically controlled valves are respectively arranged on the plurality of feed pipes and are used to control the on and off of the feed pipes; A top cover, fixedly buckled at the top port of the tank body; The mixing assembly is arranged on the top cover and is used for mixing the aggregate, asphalt, modifier and warm mix aid in the inner cavity of the tank body.

7. The asphalt mixture mixing equipment according to claim 6, characterized in that: The mixing component comprises: A second motor is fixedly mounted on the top cover; A stirring paddle is rotatably arranged on the top cover, the top end of the stirring paddle is connected to the driving end of the second motor, and the stirring paddle is located in the inner cavity of the tank body and is used to mix the aggregate, asphalt, modifier and warm mix aid located in the inner cavity of the tank body.

8. The asphalt mixture mixing equipment according to claim 7, characterized in that: The stirring paddle comprises: A transmission shaft is vertically arranged in the inner cavity of the tank body along the axial direction of the tank body, the top end of the transmission shaft is rotatably connected to the top cover, and the top end of the transmission shaft is connected to the driving end of the second motor; A plurality of stirring frames are fixedly arranged on the axial side wall of the transmission shaft, and the plurality of stirring frames are distributed in a circular array around the transmission shaft; The spiral blade is fixedly arranged on the circumferential side wall of the transmission shaft along the axial direction of the transmission shaft, and the spiral blade is spirally arranged around the transmission shaft.

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