Highway roadbed lime soil uniform stirring device

Abstract

The utility model relates to the technical field of roadbed lime soil stirring, in particular to an expressway roadbed lime soil uniform stirring device which comprises a supporting frame, a mixing mechanism is installed on the upper surface of the supporting frame, a smashing mechanism is installed on the upper surface of the mixing mechanism, and a feeding mechanism is arranged on the rear side of the supporting frame. The mixing mechanism comprises a mixing barrel fixedly connected to the upper surface of the supporting frame, the bottom of the interior of the mixing barrel is in the shape of two arcs, and two mixing paddles matched with the bottom of the mixing barrel are rotationally connected to the interior of the mixing barrel. The materials are conveyed to the crushing box through a guide hopper, at the moment, the materials are crushed through rotation of a plurality of crushing shafts and first crushing teeth under the action of second crushing teeth, the crushed materials enter the mixing barrel, at the moment, the materials are stirred under the action of two mixing paddles, and the stirred materials are discharged through a discharging valve.

Description

Technical Field

[0001] This utility model relates to the field of roadbed soil mixing technology, specifically a device for uniformly mixing roadbed soil for highways. Background Technology

[0002] Energy-saving and environmentally friendly highways refer to highways that systematically apply energy-saving technologies and environmental protection measures throughout their entire life cycle (design, construction, operation, and maintenance) to reduce energy consumption, minimize environmental pollution, and protect ecosystems. In energy-saving and environmentally friendly highways, the roadbed is the foundation for the track or pavement, and is an earthwork structure formed through excavation or filling. The main function of the roadbed is to provide the necessary conditions for track or pavement laying and train or vehicle operation, and to bear the static and dynamic loads of the track, locomotives, rolling stock, pavement, and traffic loads, while simultaneously transferring and dispersing the loads deeper into the foundation. Soil-cement mixers are used during roadbed construction.

[0003] The existing patent, with publication number CN202020947255.X, is entitled "A Dust-Free Soil Mixer." It includes a frame with a dust cover fixed on it. Inside the dust cover are a crushing cylinder, a mixing cylinder, and a conveyor belt. The upper end of the crushing cylinder has a feed inlet located at the top of the dust cover. A mud-dividing frame assembly is connected to the feed inlet via an elastic mechanism. The lower end of the crushing cylinder has a discharge outlet located inside the dust cover.

[0004] Although the above solutions address the issue of large amounts of dust volatilization during soil mixing at construction sites, they cannot fully cover the mixing area, leading to soil clumping or uneven distribution, which affects the construction quality of energy-saving and environmentally friendly highways. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model proposes a device for uniformly mixing lime-soil in highway subgrade, in order to solve the problems mentioned in the background technology.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A device for uniformly mixing lime-soil in highway subgrade includes a support frame, a mixing mechanism installed on the upper surface of the support frame, a crushing mechanism installed on the upper surface of the mixing mechanism, and a feeding mechanism provided on the rear side of the support frame.

[0008] The mixing mechanism includes a mixing cylinder fixedly connected to the upper surface of the support frame. The bottom of the mixing cylinder is two arcs. Two mixing paddles, each adapted to its bottom, are rotatably connected inside the mixing cylinder. Two discharge valves are fixedly connected to the bottom of the mixing cylinder.

[0009] The pulverizing mechanism includes a pulverizing box fixedly connected to the upper surface of the mixing cylinder. Multiple pulverizing shafts are rotatably connected inside the pulverizing box. Multiple first pulverizing teeth are fixedly connected to the surface of the pulverizing shafts. Second pulverizing teeth are provided on both sides of the inner wall of the pulverizing box. A liquid filling cover is provided on the top of the pulverizing box. A sealing plate is provided on one side of the liquid filling cover.

[0010] The feeding mechanism includes a feeding frame mounted on the surface of the support frame, a feeding cylinder mounted on the surface of the feeding frame, a conveying auger rotatably connected inside the feeding cylinder, and a discharge hopper and a guide hopper respectively provided on the upper and lower sides of the surface of the feeding cylinder.

[0011] Preferably, a bidirectional servo motor is mounted on the surface of the mixing cylinder, a first bevel gear is fixedly connected to the surface of one end of the mixing paddle, and a second bevel gear is fixedly connected to the surface of the output shafts on both sides of the bidirectional servo motor, with the two second bevel gears meshing with the two first bevel gears respectively.

[0012] Preferably, the plurality of first crushing teeth are arranged in an alternating manner, and the first crushing teeth and the second crushing teeth are arranged in an alternating manner.

[0013] Preferably, guide plates are fixedly connected to both sides of the inner wall of the crushing box, and the guide plates are inclined.

[0014] Preferably, each of the multiple crushing shafts has a transmission gear fixedly connected to its surface, and adjacent transmission gears mesh with each other.

[0015] Preferably, a first servo motor is mounted on the surface of the crushing box, and a first pulley is fixedly connected to the surface of the output shaft of the first servo motor and the surface of a crushing shaft, and the two first pulleys are meshed through a first transmission belt.

[0016] Preferably, a second servo motor is mounted on the surface of the feeding cylinder, and a second pulley is fixedly connected to both the surface of the output shaft of the second servo motor and the surface of the feeding cylinder, and the two second pulleys are rotatably connected by a second transmission belt.

[0017] Compared with existing technologies, the beneficial effects of this utility model's highway subgrade lime-soil mixing device are:

[0018] First, the material inside the feeding hopper is moved by the rotation of the feeding cylinder, and the material is transported to the crushing box by the guide hopper. At this time, the material is crushed by the rotation of multiple crushing shafts and the first crushing tooth, and under the action of the second crushing tooth, which reduces the probability of material agglomeration affecting subsequent processing.

[0019] Secondly, after being crushed, the material enters the interior of the mixing drum. At this time, the material is stirred by the action of two mixing paddles. The stirred material is discharged through the discharge valve and fully covers the mixing area, reducing the probability of ash and soil clumping or uneven distribution, and also reducing the probability of a large amount of dust volatilization during ash and soil mixing at the construction site. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the hybrid mechanism in the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the crushing mechanism in the structure of this utility model;

[0023] Figure 4 This is a cross-sectional view of the feeding mechanism in the structure of this utility model.

[0024] The components include: 1. Support frame; 2. Mixing mechanism; 201. Bidirectional servo motor; 202. Mixing cylinder; 203. Mixing paddle; 204. Discharge valve; 205. First bevel gear; 206. Second bevel gear; 3. Crushing mechanism; 301. Crushing box; 302. Crushing shaft; 303. First crushing tooth; 304. Second crushing tooth; 305. Guide plate; 306. Liquid filling cover; 307. Sealing plate; 308. Transmission gear; 309. First servo motor; 310. First pulley; 311. First transmission belt; 4. Feeding mechanism; 401. Feeding rack; 402. Feeding cylinder; 403. Conveying auger; 404. Discharge hopper; 405. Guide hopper; 406. Second servo motor; 407. Second pulley; 408. Second transmission belt. Detailed Implementation

[0025] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0026] Please refer to the highway subgrade lime-soil mixing device described in this specific embodiment. Figure 1-4The system includes: a support frame 1, a mixing mechanism 2 mounted on the upper surface of the support frame 1, a crushing mechanism 3 mounted on the upper surface of the mixing mechanism 2, a feeding mechanism 4 located at the rear of the support frame 1, a mixing cylinder 202 fixedly connected to the upper surface of the support frame 1, the bottom of the mixing cylinder 202 being two arc-shaped sections, two mixing paddles 203 rotatably connected inside the mixing cylinder 202 respectively adapted to their bottom sections, and two discharge valves 204 fixedly connected to the bottom of the mixing cylinder 202. The crushing mechanism 3 includes a crushing box 301 fixedly connected to the upper surface of the mixing cylinder 202. The internal crushing box 301 is rotatably connected to multiple crushing shafts 302. Multiple first crushing teeth 303 are fixedly connected to the surface of the crushing shafts 302. Second crushing teeth 304 are provided on both sides of the inner wall of the crushing box 301. The top of the crushing box 301 is provided with a liquid filling cover 306. A sealing plate 307 is provided on one side of the liquid filling cover 306. The feeding mechanism 4 includes a feeding rack 401 installed on the surface of the support frame 1. A feeding cylinder 402 is installed on the surface of the feeding rack 401. A conveying auger 403 is rotatably connected inside the feeding cylinder 402. A discharge hopper 404 and a guide hopper 405 are respectively provided on the upper and lower sides of the surface of the feeding cylinder 402.

[0027] Through the above technical solution, the material inside the feeding hopper 404 is moved by the rotation of the feeding cylinder 402, and the material is conveyed to the crushing box 301 through the guide hopper 405. At this time, the material is crushed by the rotation of multiple crushing shafts 302 and the first crushing tooth 303, and by the action of the second crushing tooth 304. After crushing, the material enters the interior of the mixing cylinder 202, where it is stirred by the action of two mixing paddles 203. The stirred material is then discharged through the discharge valve 204.

[0028] A bidirectional servo motor 201 is mounted on the surface of the mixing cylinder 202. A first bevel gear 205 is fixedly connected to the surface of one end of the mixing paddle 203. A second bevel gear 206 is fixedly connected to the surface of the output shafts on both sides of the bidirectional servo motor 201. The two second bevel gears 206 mesh with the two first bevel gears 205 respectively. When the bidirectional servo motor 201 is started, its output shafts drive the two second bevel gears 206 to rotate. At this time, under the action of the first bevel gears 205, the two mixing paddles 203 are driven to rotate in opposite directions.

[0029] Multiple first crushing teeth 303 are arranged in an alternating manner, and the first crushing teeth 303 and the second crushing teeth 304 are arranged in an alternating manner. The alternating arrangement of the first crushing teeth 303 and the second crushing teeth 304 can increase the crushing effect on the material.

[0030] Guide plates 305 are fixedly connected to both sides of the inner wall of the crushing box 301, and the guide plates 305 are inclined. The guide plates 305 facilitate the guidance of materials entering the crushing shaft 302, thereby reducing the probability of material residue inside the crushing box 301.

[0031] Multiple crushing shafts 302 are fixedly connected to the surfaces of transmission gears 308, and adjacent transmission gears 308 mesh. A first servo motor 309 is mounted on the surface of the crushing box 301. A first pulley 310 is fixedly connected to the surface of the output shaft of the first servo motor 309 and the surface of one crushing shaft 302. The two first pulleys 310 mesh through a first transmission belt 311. The first servo motor 309 starts its output shaft, which drives one crushing shaft 302 to rotate under the action of the first pulley 310 and the first transmission belt 311. At the same time, multiple crushing shafts 302 rotate in opposite directions under the action of multiple transmission gears 308.

[0032] A second servo motor 406 is mounted on the surface of the feeding cylinder 402. The surface of the output shaft of the second servo motor 406 and the surface of the feeding cylinder 402 are both fixedly connected to a second pulley 407. The two second pulleys 407 are rotatably connected by a second transmission belt 408. The output shaft of the second servo motor 406 is started to rotate. At this time, the feeding cylinder 402 is driven to rotate under the action of the second pulley 407 and the second transmission belt 408.

[0033] Its working principle is as follows:

[0034] Through the above technical solution, the material is poured into the discharge hopper 404. The output shaft of the second servo motor 406 is started to rotate. At this time, under the action of the second pulley 407 and the second transmission belt 408, the feeding cylinder 402 is driven to rotate. The rotation of the feeding cylinder 402 causes the material inside the discharge hopper 404 to move, and the material is conveyed to the crushing box 301 through the guide hopper 405. The output shaft of the first servo motor 309 is started to drive a crushing shaft 302 to rotate under the action of the first pulley 310 and the first transmission belt 311. At the same time, multiple transmission teeth... The wheel 308 causes multiple crushing shafts 302 to rotate in opposite directions. At this time, the material is crushed by the rotation of multiple crushing shafts 302 and the first crushing tooth 303 and the action of the second crushing tooth 304. After crushing, the material enters the interior of the mixing cylinder 202. When the bidirectional servo motor 201 starts, its output shafts on both sides drive the second bevel gears 206 on both sides to rotate. At this time, the first bevel gear 205 drives the two mixing paddles 203 to rotate in opposite directions. At this time, the material is stirred by the action of the two mixing paddles 203. The stirred material is discharged through the discharge valve 204.

[0035] It should be noted that, although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for uniformly mixing lime-soil in highway subgrade, characterized in that, include: A support frame (1) is provided with a mixing mechanism (2) installed on its upper surface, a crushing mechanism (3) installed on its upper surface, and a feeding mechanism (4) provided on the rear side of the support frame (1). The mixing mechanism (2) includes a mixing cylinder (202) fixedly connected to the upper surface of the support frame (1). The bottom of the mixing cylinder (202) is two arcs. The mixing cylinder (202) is rotatably connected to two mixing paddles (203) that are adapted to their bottoms respectively. The bottom of the mixing cylinder (202) is fixedly connected to two discharge valves (204). The pulverizing mechanism (3) includes a pulverizing box (301) fixedly connected to the upper surface of the mixing cylinder (202). Multiple pulverizing shafts (302) are rotatably connected inside the pulverizing box (301). Multiple first pulverizing teeth (303) are fixedly connected to the surface of the pulverizing shafts (302). Second pulverizing teeth (304) are provided on both sides of the inner wall of the pulverizing box (301). A liquid filling cover (306) is provided on the top of the pulverizing box (301). A sealing plate (307) is provided on one side of the liquid filling cover (306). The feeding mechanism (4) includes a feeding frame (401) installed on the surface of the support frame (1), a feeding cylinder (402) is installed on the surface of the feeding frame (401), a conveying auger (403) is rotatably connected inside the feeding cylinder (402), and a discharge hopper (404) and a guide hopper (405) are respectively provided on the upper and lower sides of the surface of the feeding cylinder (402).

2. The highway subgrade lime-soil mixing device according to claim 1, characterized in that: A bidirectional servo motor (201) is mounted on the surface of the mixing cylinder (202). A first bevel gear (205) is fixedly connected to the surface of one end of the mixing paddle (203). A second bevel gear (206) is fixedly connected to the surface of the output shafts on both sides of the bidirectional servo motor (201), and the two second bevel gears (206) mesh with the two first bevel gears (205) respectively.

3. The highway subgrade lime-soil mixing device according to claim 1, characterized in that: The first crushing teeth (303) are arranged in an alternating manner, and the first crushing teeth (303) and the second crushing teeth (304) are arranged in an alternating manner.

4. The highway subgrade lime-soil mixing device according to claim 1, characterized in that: Guide plates (305) are fixedly connected to both sides of the inner wall of the crushing box (301), and the guide plates (305) are inclined.

5. The highway subgrade lime-soil mixing device according to claim 1, characterized in that: Each of the multiple crushing shafts (302) has a transmission gear (308) fixedly connected to its surface, and adjacent transmission gears (308) mesh with each other.

6. The highway subgrade lime-soil mixing device according to claim 1, characterized in that: The surface of the crushing box (301) is equipped with a first servo motor (309). The surface of the output shaft of the first servo motor (309) and the surface of a crushing shaft (302) are both fixedly connected to a first pulley (310), and the two first pulleys (310) are engaged by a first transmission belt (311).

7. The highway subgrade lime-soil mixing device according to claim 1, characterized in that: A second servo motor (406) is mounted on the surface of the feeding cylinder (402). The surface of the output shaft of the second servo motor (406) and the surface of the feeding cylinder (402) are both fixedly connected to a second pulley (407), and the two second pulleys (407) are rotatably connected by a second transmission belt (408).

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