Batching device capable of uniformly doping fibers in water-stable broken stones

Abstract

The invention belongs to the technical field of application of water-stable broken stone production equipment, and particularly relates to a batching device capable of uniformly doping fibers in water-stable broken stones. Comprising a tank body and a stirring shaft arranged in the tank body, the stirring shaft is sleeved with a stirring rod, the stirring shaft is rotationally arranged in the tank body, a feeding hopper is arranged at the top of the tank body, and a commutator is further arranged on the stirring shaft; the reverser comprises a driving bevel gear arranged on the stirring shaft in a sleeving manner, an output bevel gear meshed with the driving bevel gear and a reverser shell used for wrapping the driving bevel gear and the output bevel gear, a connecting rod is arranged on the side wall of the reverser shell, and the reverser shell is fixed in the tank body through the connecting rod; according to the stirring shaft, the structure of an existing stirring shaft is improved, rotation of the fiber air pipe is achieved through the arrangement of the reverser, the fiber air pipe is made to be arranged at an angle of 90 degrees relative to the stirring shaft, and uniform distribution of fibers is effectively achieved in cooperation with the arrangement of the fiber output pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of application of water-stable crushed stone production equipment, and in particular relates to a batching device capable of uniformly doping fibers into water-stable crushed stone. Background Art

[0002] In road engineering, semi-rigid base, as an important component, can effectively disperse the load from the upper surface layer, reduce the settlement and deformation of the roadbed, and thus improve the overall stability and durability of the road. Cement-stabilized gravel base, as one of the semi-rigid bases, has the advantages of high water stability and high strength, and is widely used in road engineering.

[0003] However, the cement-stabilized gravel base is susceptible to changes in temperature and humidity, which makes it prone to shrinkage and cracking. In order to compensate for the disadvantages of the cement-stabilized gravel base and improve its shrinkage and crack resistance, the current consideration is to optimize the moisture content, fine aggregate content, cement dosage and grading of the cement-stabilized gravel.

[0004] Among them, adding fiber is the main method to solve the shrinkage cracks, thermal shrinkage cracks, network cracks and cracks caused by uneven settlement of the roadbed in the existing water-stabilized gravel layer. In the preparation of cement-stabilized gravel, it is necessary to fully mix and stir each component in turn. During the preparation process using a mixing and stirring device, due to the fiber structure characteristics, the mixing and stirring device cannot fully mix the component materials. Even if the vibration stirring technology in the existing technology is used to improve the mixing uniformity, it cannot meet the use requirements and cannot ensure the uniformity of the fibers in the cement-stabilized gravel mixture, thereby ensuring the stability of the quality of the water-stabilized gravel layer. Summary of the invention

[0005] Aiming at the technical problems existing in the existing cement stabilized gravel mixing and stirring device, the present invention proposes a batching device which has a simple structure, is easy to process and can effectively achieve uniform distribution of fibers in cement stabilized gravel mixture and can uniformly mix fibers in cement stabilized gravel.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: the present invention provides a batching device capable of uniformly doping fibers in water-stable crushed stone, comprising a tank body and a stirring shaft arranged in the tank body, the stirring shaft is provided with a stirring rod, the stirring shaft is rotatably arranged in the tank body, a feeding hopper is arranged on the top of the tank body, a commutator is also arranged on the stirring shaft, the commutator comprises a driving bevel gear arranged on the stirring shaft, an output bevel gear meshing with the driving bevel gear, and a commutator housing for wrapping the driving bevel gear and the output bevel gear, a connecting rod is arranged on the side wall of the commutator housing, the commutator housing is fixed in the tank body through the connecting rod, a fiber air pipe is arranged in the output bevel gear, one end of the fiber air pipe away from the commutator extends out of the tank body, one end of the fiber air pipe extending out of the tank body is connected to a rotary joint, the fixed end of the rotary joint is fixed on the side wall of the tank body, the fixed end of the rotary joint is connected to a high-pressure air pipe, the high-pressure air pipe is connected to a fiber inlet pipe, a fiber output pipe is arranged on the fiber air pipe, and a high-pressure nozzle is arranged on the fiber output pipe.

[0007] Preferably, a curved plate is further provided on one side of the fiber output tube, and the high-pressure nozzle is provided at the angle between the curved plate and the fiber output tube.

[0008] Preferably, the high-pressure nozzles are arranged at intervals along the axis of the fiber output tube.

[0009] Preferably, the fiber output tubes are arranged at intervals on the fiber air tube.

[0010] Preferably, the stirring rod comprises an upper stirring rod and a lower stirring rod located at the upper and lower ends of the fiber air tube, and auxiliary stirring rods are provided on the upper stirring rod and the lower stirring rod. The auxiliary stirring rod is located between two adjacent fiber output tubes, and the auxiliary stirring rods on the upper stirring rod and the lower stirring rod are arranged in opposite directions.

[0011] Preferably, at least two evenly distributed output bevel gears are meshed on the driving bevel gear.

[0012] Preferably, the stirring shaft is further provided with a stirring plate, wherein the stirring plate is a convex plate and is evenly distributed on the stirring shaft in a ring shape.

[0013] Preferably, the stirring shaft is also provided with a fiber hopper, and a discharge hole is provided at the bottom of the fiber hopper.

[0014] Preferably, a distributor is further provided on the stirring shaft, and the distributor is arranged below the fiber hopper. The distributor is arranged in an umbrella shape, and drop holes are evenly distributed on the distributor.

[0015] Preferably, the distributor is further provided with a material guiding arc plate, and the material guiding arc plate is evenly distributed on the distributor in a ring shape.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. The present invention provides a dosing device capable of uniformly doping fibers in water-stabilized crushed stone. By improving the structure of the existing stirring shaft and utilizing the setting of a commutator, the fiber air pipe is rotated and arranged at 90 degrees relative to the stirring shaft. In combination with the setting of a fiber output pipe, the uniform distribution of fibers is effectively achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of the structure of a batching device capable of uniformly doping fibers in water-stabilized crushed stone provided in Example 1;

[0020] Figure 2 A schematic diagram of the structure inside the tank provided in Example 1;

[0021] Figure 3 A schematic diagram of the partial structure of the commutator provided in Example 1;

[0022] Figure 4 A schematic diagram of the structure of the fiber output tube provided in Example 1;

[0023] In the above figures, 1. tank body; 11. drive motor; 12. stirring shaft; 2. commutator; 21. commutator housing; 22. connecting rod; 23. driving bevel gear; 24. output bevel gear; 3. fiber air pipe; 31. fiber output pipe; 32. arc plate; 33. high-pressure nozzle; 4. rotary joint; 41. high-pressure air pipe; 42. fiber inlet pipe; 43. fiber tank; 5. stirring rod; 51. upper stirring rod; 52. lower stirring rod; 53. auxiliary stirring rod; 6. stirring plate; 7. fiber hopper; 8. distributor; 81. drop hole; 82. guide arc plate. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0026] Embodiment 1, as Figure 1 to Figure 4 As shown, this embodiment aims to improve the uniformity of fibers (polymer fibers or other difficult-to-disperse fibers) in water-stabilized gravel. To this end, the present embodiment provides a batching device capable of uniformly doping fibers in water-stabilized gravel, comprising a tank body 1 and a stirring shaft 12 disposed in the tank body 1, on which a stirring rod 5 is mounted, a driving motor 11 is disposed at the top of the tank body 1, and the output end of the driving motor 11 is connected to the stirring shaft 12, so that the stirring shaft 12 is rotatably disposed in the tank body 1, and a feed hopper (not marked in the figure) is disposed at the top of the tank body 1, and the feed hopper is used to input other materials except fibers into the tank body 1. The above structure is a common structure of an existing water-stabilized gravel mixing tank, and therefore, in this embodiment, it is not described in detail.

[0027] Considering that the main reason for the uneven stirring of the existing mixing tank is that it is difficult for the fibers to evenly enter the interior of the water-stable crushed stone, which leads to the situation of clumping or no fibers, in this embodiment, the problem is solved by directly inputting the fibers from the inside. To this end, in order to achieve the above-mentioned purpose, a commutator 2 is also provided on the stirring shaft 12. The main purpose of the commutator 2 is to change the output direction. To this end, the commutator 2 includes a driving bevel gear 23 mounted on the stirring shaft 12, an output bevel gear 24 meshing with the driving bevel gear 23, and a commutator housing 21 for wrapping the driving bevel gear 23 and the output bevel gear 24. In this embodiment, the commutator housing 21 is arranged in a cube shape, and a bearing is arranged on its end face to ensure rotation. Of course, the bearing needs to be sealed to prevent cement from entering. It should be noted here that in order to ensure that the rotational speed of the auxiliary stirring rod 53 is inconsistent with the rotational speed of the fiber air tube 3, the diameter and the number of gears between the driving bevel gear 23 and the output bevel gear 24 are inconsistent, that is, the diameter and the number of gears of the output bevel gear 24 are less than the driving bevel gear 23. In this way, the flow speeds of the horizontally rotating water-stabilized gravel and the vertically rotating water-stabilized gravel can be inconsistent, thereby facilitating the spraying and mixing of fibers.

[0028] A connecting rod 22 is arranged on the side wall of the commutator housing 21, and the other end of the connecting rod 22 is fixed on the inner wall of the tank body 1, so that the commutator 2 is fixed. A fiber air tube 3 is set in the output bevel gear 24, and the end of the fiber air tube 3 close to the output bevel gear 24 is closed. The end of the fiber air tube 3 away from the commutator 2 extends out of the tank body 1, and the end of the fiber air tube 3 extending out of the tank body 1 is connected to a rotary joint 4, and the fixed end of the rotary joint 4 is fixed on the side wall of the tank body 1. Of course, a bearing is also arranged on the tank body 1 to ensure the rotation stability of the fiber air tube 3. A high-pressure air pipe 41 is connected to the fixed end of the rotary joint 4, and the high-pressure air pipe 41 is connected to a fiber inlet pipe 42, and the end of the fiber inlet pipe 42 away from the high-pressure air pipe 41 is connected to a fiber tank 43, and a control valve is arranged on the fiber inlet pipe 42 to control the amount of fiber entering. Meanwhile, a fiber output tube 31 is arranged on the fiber air tube 3 , and the fiber output tube 31 is arranged at a vertical angle to the fiber air tube 3 . Meanwhile, a high-pressure nozzle 33 is arranged on the fiber output tube 31 .

[0029] In this way, high-pressure air mixed with fibers will be ejected from the high-pressure nozzle 33, and the fiber output pipe 31 will rotate up and down, so that the fibers can be distributed up and down, thereby making the distribution more uniform compared to the original stirring tank. As the stirring progresses, the high-pressure air will overflow.

[0030] In order to further improve the uniformity of mixing, an arc plate 32 is also provided on one side of the fiber output tube 31, and a high-pressure nozzle 33 is provided at the angle between the arc plate 32 and the fiber output tube 31. The arc plate 32 is provided for two main purposes. One is that it has a larger stirring area relative to the fiber output tube 31, and can drive more water-stable crushed stone to flow. The second is that due to the rotation of the arc plate 32, during the rotation process, the rear of the arc plate 32 will be in a state of no water-stable crushed stone for a certain period of time. The high-pressure nozzle 33 is provided at the angle between the arc plate 32 and the fiber output tube 31. In this way, by utilizing the gap of no water-stable crushed stone, the spraying surface of the high-pressure nozzle 33 becomes larger, so that the fiber distribution is more uniform. At the same time, the high-pressure nozzle 33 is provided at intervals along the axis of the fiber output tube 31.

[0031] In order to further improve the uniformity of fiber distribution, in this embodiment, the fiber output tubes 31 are arranged at intervals on the fiber air tube 3. Due to the arrangement of the connecting rod 22, the lengths of the fiber output tubes 31 are different.

[0032] In order to further cooperate with the rotation of the fiber output tube 31, in this embodiment, the stirring rod 5 includes an upper stirring rod 51 and a lower stirring rod 52 located at the upper and lower ends of the fiber air tube 3, and an auxiliary stirring rod 53 is provided on the upper stirring rod 51 and the lower stirring rod 52. The auxiliary stirring rod 53 is located between two adjacent fiber output tubes 31, and the auxiliary stirring rods 53 on the upper stirring rod 51 and the lower stirring rod 52 are arranged in opposite directions. In this way, the waterless stable crushed stone material between the two arc-shaped plates 32 is stirred by the auxiliary stirring rod 53, and the flow of the waterless stable crushed stone material is staggered in accordance with the different rotation speeds, thereby driving the fiber to move further.

[0033] Similarly, in order to increase the distribution of the fiber output tubes 31, at least two evenly distributed output bevel gears 24 are meshed on the driving bevel gear 23. In this embodiment, the driving bevel gear 23 is meshed with four output bevel gears 24, and adjacent output bevel gears 24 form an angle of 90 degrees.

[0034] In order to achieve a large flow of water-stable crushed stone, a stirring plate 6 is also provided on the stirring shaft 12. The stirring plate 6 is provided below the lower stirring rod 52 and is a convex plate. The stirring plates 6 are evenly distributed in a ring shape on the stirring shaft 12. That is, four stirring plates 6 are also provided on the stirring shaft 12. The stirring plates 6 are provided as convex plates so that more water-stable crushed stone can be driven to surge upward during the rotation process. In this way, the water-stable crushed stone at the bottom surges upward, while the fiber-doped material moves downward, so that the fiber is further dispersed evenly.

[0035] In order to further improve the dispersion of the fibers, a fiber hopper 7 is also mounted on the stirring shaft 12, and a discharge hole is provided at the bottom of the fiber hopper 7. The fiber hopper 7 is located above the water-stable crushed stone material, so that the rotation of the stirring shaft 12 generates a certain centrifugal force, so that the fiber material is evenly sprinkled on the top surface of the water-stable crushed stone material, and is mixed with the water-stable crushed stone material on the upper layer by stirring.

[0036] Considering that the materials falling from the discharge hole will be dispersed under the action of centrifugal force, there is still the possibility of accumulation, for this reason, a uniform distributor 8 is also provided on the stirring shaft 12, and the uniform distributor 8 is located below the fiber hopper 7. The uniform distributor 8 is arranged in an umbrella-like shape, and the material-falling holes 81 are evenly distributed on the uniform distributor 8. In this way, the umbrella-like structure is used to make the centrifugal surface larger, further ensuring the uniformity of fiber dispersion.

[0037] In order to further ensure the dispersion of the fibers, a guide arc plate 82 is also provided on the uniform distributor 8, and the guide arc plate 82 is evenly distributed on the uniform distributor 8 in an annular shape. In this way, the fibers are more evenly dispersed by the guidance of the guide arc plate 82 and the generation of a certain wind force. Of course, in order to avoid the fibers from being discharged in piles, a fiber tube is provided on the tank body 1, and the fibers are quantitatively input into the fiber hopper 7 through the fiber tube, ensuring that they can better cooperate with the stirring to achieve even distribution.

[0038] In this way, the uniformity of fiber dispersion is ensured by combining internal input with top dispersion input, thereby further improving the stability of the water-stabilized gravel layer.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A batching device capable of uniformly doping fibers in water-stable crushed stone, comprising a tank body and a stirring shaft arranged in the tank body, the stirring shaft is provided with a stirring rod, the stirring shaft is rotatably arranged in the tank body, and a feeding hopper is arranged on the top of the tank body, characterized in that: A commutator is also provided on the stirring shaft, and the commutator includes a driving bevel gear sleeved on the stirring shaft, an output bevel gear meshing with the driving bevel gear, and a commutator housing for wrapping the driving bevel gear and the output bevel gear. A connecting rod is provided on the side wall of the commutator housing, and the commutator housing is fixed in the tank body through the connecting rod. A fiber air pipe is sleeved in the output bevel gear, and one end of the fiber air pipe away from the commutator extends out of the tank body, and one end of the fiber air pipe extending out of the tank body is connected to a rotating joint, and the fixed end of the rotating joint is fixed on the side wall of the tank body, and the fixed end of the rotating joint is connected to a high-pressure air pipe, and the high-pressure air pipe is connected to a fiber inlet pipe, and a fiber output pipe is provided on the fiber air pipe, and a high-pressure nozzle is provided on the fiber output pipe.

2. A batching device capable of uniformly doping fibers into water-stable crushed stone according to claim 1, characterized in that: An arc plate is also arranged on one side of the fiber output tube, and the high-pressure nozzle is arranged at the angle between the arc plate and the fiber output tube.

3. A batching device capable of uniformly doping fibers into water-stable crushed stone according to claim 2, characterized in that: The high-pressure nozzles are arranged at intervals along the axis of the fiber output tube.

4. A batching device capable of uniformly doping fibers into water-stable crushed stone according to claim 3, characterized in that: The fiber output tubes are arranged on the fiber air tube at intervals.

5. A batching device capable of uniformly doping fibers into water-stabilized crushed stone according to claim 4, characterized in that: The stirring rod comprises an upper stirring rod and a lower stirring rod located at the upper and lower ends of the fiber air tube, and auxiliary stirring rods are arranged on the upper stirring rod and the lower stirring rod, and the auxiliary stirring rods are located between two adjacent fiber output tubes, and the auxiliary stirring rods on the upper stirring rod and the lower stirring rod are arranged in opposite directions.

6. A batching device capable of uniformly doping fibers into water-stabilized crushed stone according to claim 5, characterized in that: The driving bevel gear is meshed with at least two evenly distributed output bevel gears.

7. A batching device capable of uniformly doping fibers into water-stabilized crushed stone according to claim 6, characterized in that: The stirring shaft is also provided with a stirring plate, which is a convex plate and is evenly distributed on the stirring shaft in a ring shape.

8. A batching device capable of uniformly doping fibers into water-stabilized macadam according to any one of claims 1 to 7, characterized in that: The stirring shaft is also provided with a fiber hopper, and a discharge hole is arranged at the bottom of the fiber hopper.

9. A batching device capable of uniformly doping fibers into water-stabilized crushed stone according to claim 8, characterized in that: The stirring shaft is also provided with a distributor, which is arranged below the fiber hopper and is arranged in an umbrella-like shape, and has evenly distributed material drop holes on the distributor.

10. A batching device capable of uniformly doping fibers into water-stabilized crushed stone according to claim 8, characterized in that: The distributor is also provided with a material guiding arc plate, and the material guiding arc plate is evenly distributed on the distributor in a ring shape.

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