Premixed solidified soil backfill conveying device

Abstract

The invention discloses a premixed solidified soil backfill conveying device which comprises a movable frame, a stirring base is fixedly arranged on the upper end face of the movable frame, a stirring barrel is rotatably arranged on the stirring base in a communicating mode, a driving mechanism is fixedly arranged on the upper end face of the movable frame, and a spiral conveying mechanism is arranged at the other end of the stirring base in a communicating mode. A scraper conveying mechanism is hinged to the front end of the movable frame and comprises a frame plate, an extension plate is movably inserted into the front end of the frame plate, rollers are rotatably arranged on the extension plate and the frame plate, a belt is connected between the rollers, an electric push rod is fixedly arranged at the bottom of the frame plate, and a tensioning roller assembly is fixedly arranged at the bottom of the frame plate. According to the scraper conveying mechanism, the extending plate is movably inserted into the front end of the frame plate, the extending plate can be driven to stretch out and draw back through the electric push rod, and the effective conveying length of the belt is changed by matching with the tensioning roller assembly. Therefore, the device can flexibly adapt to different conveying distances according to actual requirements of a construction site.

Description

Technical Field

[0001] The invention relates to the technical field of building backfill devices, in particular to a premixed solidified soil backfill feeding device. Background Art

[0002] In many fields such as construction engineering and road construction, foundation backfilling is often involved. Solidified soil backfilling is an important backfilling method, which is to mix a specific curing agent with soil materials in a certain proportion and stir them evenly, so that the physical and mechanical properties of the soil materials are significantly improved, thereby meeting the requirements of engineering backfilling for soil strength, stability and other aspects, such as improving the bearing capacity of the foundation and reducing settlement.

[0003] Traditional solidified soil backfill conveying machinery mainly includes conveyor belt conveyors and screw conveyors. Conveyor belt conveyors are generally composed of a fixed-length conveyor belt, a drive device and a support structure. The material is placed on the conveyor belt, and the conveyor belt is driven by the drive device to move, thereby transporting the solidified soil to the designated backfill location. Screw conveyors use spiral blades to rotate in a closed cylinder, pushing the solidified soil forward along the cylinder to achieve transportation.

[0004] However, traditional backfill conveying equipment has many defects. In terms of conveyor belt length, the conveyor belt length of traditional conveyor belt conveyor equipment is usually fixed, which is difficult to flexibly adjust according to the distance requirements of the construction site. When the backfill distance is long, the fixed-length conveyor belt cannot meet the long-distance transportation requirements, and additional transfer equipment or multiple material handling may be required, reducing construction efficiency.

[0005] Traditional equipment has obvious deficiencies in preventing static stratification and mixing during the transportation of solidified soil. If the solidified soil is left to stand for too long during transportation, stratification is likely to occur due to the different densities of its internal components, that is, the solidifying agent and the soil are separated, which will make the performance of the solidified soil after backfilling uneven and fail to achieve the expected engineering effect. Most traditional transportation equipment does not have effective solutions to this problem, and cannot stir and mix the possible stratification in time during the transportation process, thereby reducing the quality stability of the solidified soil backfill. Summary of the invention

[0006] 1. Technical issues

[0007] The present invention aims to provide a premixed solidified soil backfill feeding device to solve the problems of traditional solidified soil backfill conveying machinery in that the conveyor belt length cannot be flexibly adjusted and the solidified soil cannot be effectively prevented from being statically layered and stirred during the conveying process.

[0008] (II) Technical content

[0009] To solve the above technical problems, the technical solution of the present invention is as follows: a premixed solidified soil backfill feeding device comprises a mobile frame, a mixing base is fixedly provided on the upper end surface of the mobile frame, a mixing drum is rotatably and connected to the mixing base, a driving mechanism for driving the mixing drum to rotate is fixedly provided on the upper end surface of the mobile frame, a spiral conveying mechanism is connected to the other end of the mixing base, a scraper feeding mechanism is hingedly provided at the front end of the mobile frame, the scraper feeding mechanism is located below the discharge port of the spiral conveying mechanism, the scraper feeding mechanism comprises a frame plate hingedly provided at the front end of the mobile frame, an extension plate is movably inserted at the front end of the frame plate, rollers are rotatably provided on the extension plate and the frame plate, belts are connected between the rollers, a motor for driving the rollers to rotate is fixedly provided at the rear side of the frame plate, an electric push rod for driving the extension plate to extend and retract is fixedly provided at the bottom of the frame plate, a tensioning roller assembly for tensioning the belt is fixedly provided at the bottom of the frame plate, and an electric push rod 2 for driving the frame plate to rotate horizontally is hingedly provided between the front end of the mobile frame and the frame plate.

[0010] Furthermore, the driving mechanism includes a second motor fixedly mounted on the upper end surface of the moving frame, a driving gear fixedly mounted on the driving shaft of the motor, and also includes a driven gear fixedly mounted on the outer side surface of the mixing drum, and the driving gear and the driven gear are meshed with each other.

[0011] Furthermore, the spiral conveying mechanism includes a feeding cylinder fixedly arranged at the discharge end of the stirring base, an auger is rotatably arranged inside the feeding cylinder, and a motor three for driving the auger to rotate is fixedly arranged outside the feeding cylinder.

[0012] Furthermore, the tensioning roller assembly includes an electric push rod three fixed to the bottom of the frame plate, a U-shaped frame is fixed to the lower piston end of the electric push rod three, a tensioning roller is rotatably arranged inside the U-shaped frame, and the lower end of the tensioning roller contacts the inner side of the belt.

[0013] Furthermore, a scraper is fixedly provided on the outer surface of the belt.

[0014] Furthermore, spiral blades are fixedly provided on the inner wall of the mixing drum.

[0015] (III) Technical Effect

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. Flexible adjustment of conveyor belt length: The front end of the frame plate in the scraper conveying mechanism of the present invention is movably connected with an extension plate, which can be driven to extend and retract by an electric push rod, and then matched with a tension roller assembly to change the effective conveying length of the belt. This enables the device to flexibly adapt to different conveying distances according to the actual needs of the construction site. Whether it is short-distance backfilling or long-distance material transportation, there is no need to add a large number of additional transfer equipment or frequently carry materials, which significantly improves construction efficiency.

[0018] 2. Adjust the conveying angle: There is an electric push rod 2 hinged between the front end of the mobile frame and the frame plate, which can drive the frame plate to rotate horizontally. This design allows the conveying angle of the scraper conveying mechanism to be adjusted according to the construction site, improving the accuracy of backfilling and falling materials.

[0019] 3. Effectively prevent the solidified soil from being stratified during static mixing: a mixing drum and a driving mechanism are set up, and spiral blades are fixed on the inner wall of the mixing drum. When the mixing drum rotates, the solidified soil can be fully mixed, ensuring the uniformity of the solidified soil and ensuring that the performance of the solidified soil after backfilling is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure diagram of a premixed solidified soil backfill feeding device of the present invention is shown in FIG. Figure 1 .

[0021] Figure 2 The three-dimensional structure diagram of a premixed solidified soil backfill feeding device of the present invention is shown in FIG. Figure 2 .

[0022] Figure 3 The three-dimensional structure diagram of a premixed solidified soil backfill feeding device of the present invention is shown in FIG. Figure 3 .

[0023] Figure 4 The present invention is a schematic diagram of the main structure of a premixed solidified soil backfill feeding device.

[0024] Figure 5 It is a right-side structural schematic diagram of a premixed solidified soil backfill feeding device of the present invention.

[0025] Figure 6 The present invention is a schematic diagram of a top view of the structure of a premixed solidified soil backfill feeding device.

[0026] Figure 7 The present invention is a schematic diagram of the cross-sectional structure of a premixed solidified soil backfill feeding device.

[0027] As shown in the figure: 1. Mobile frame; 2. Mixing base; 3. Mixing drum; 4. Screw conveying mechanism; 5. Frame plate; 6. Extension plate; 7. Roller; 8. Belt; 9. Electric push rod; 10. Electric push rod 2; 11. Motor 2; 12. Driving gear; 13. Driven gear; 14. Feeding drum; 15. Auger; 16. Motor 3; 17. Electric push rod 3; 18. U-shaped frame; 19. Tensioning roller; 20. Scraper; 21. Spiral blade. DETAILED DESCRIPTION

[0028] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "installed", "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] Combined with Figure 1 To Attachment Figure 7 A premixed solidified soil backfill feeding device comprises a mobile frame 1, a mixing base 2 is fixedly provided on the upper end surface of the mobile frame 1, a mixing drum 3 is rotatably and connectedly provided on the mixing base 2, a spiral blade 21 is fixedly provided on the inner wall of the mixing drum 3, a driving mechanism for driving the mixing drum 3 to rotate is fixedly provided on the upper end surface of the mobile frame 1, a spiral conveying mechanism 4 is connectedly provided at the other end of the mixing base 2, a scraper feeding mechanism is hingedly provided at the front end of the mobile frame 1, the scraper feeding mechanism is located below the discharge port of the spiral conveying mechanism 4, and the scraper feeding mechanism comprises a frame hingedly provided at the front end of the mobile frame 1 The frame plate 5 has an extension plate 6 movably inserted at the front end thereof, rollers 7 are rotatably provided on the extension plate 6 and the frame plate 5, belts 8 are connected between the rollers 7, a scraper 20 is fixedly provided on the outer surface of the belt 8, a motor for driving the roller 7 to rotate is fixedly provided on the rear side of the frame plate 5, an electric push rod 9 for driving the extension plate 6 to retract is fixedly provided at the bottom of the frame plate 5, a tensioning roller assembly for tensioning the belt 8 is fixedly provided at the bottom of the frame plate 5, and an electric push rod 10 for driving the frame plate 5 to rotate horizontally is hingedly provided between the front end of the mobile frame 1 and the frame plate 5.

[0032] In this embodiment, as a preferred technical solution, the driving mechanism includes a motor 11 fixedly mounted on the upper end surface of the mobile frame 1, a driving gear 12 is fixedly mounted on the driving shaft of the motor 11, and also includes a driven gear 13 fixedly mounted on the outer side surface of the mixing drum 3, and the driving gear 12 and the driven gear 13 are meshed with each other.

[0033] In this embodiment, as a preferred technical solution, the screw conveying mechanism 4 includes a feed barrel 14 fixedly arranged at the discharge end of the stirring base 2, a screw 15 is rotatably arranged inside the feed barrel 14, and a motor 16 for driving the screw 15 to rotate is fixedly arranged outside the feed barrel 14.

[0034] In this embodiment, as a preferred technical solution, the tensioning roller assembly includes an electric push rod 17 fixed to the bottom of the frame plate 5, a U-shaped frame 18 is fixed to the lower piston end of the electric push rod 17, a tensioning roller 19 is rotatably arranged inside the U-shaped frame 18, and the lower end of the tensioning roller 19 contacts the inner side of the belt 8.

[0035] The working process of the premixed solidified soil backfill feeding device of the present invention is as follows:

[0036] 1. Mixing process: First, put the solidified soil and the curing agent into the mixing drum 3 in proportion. Start the motor 11, and the driving shaft of the motor 11 drives the driving gear 12 to rotate. Since the driving gear 12 is meshed with the driven gear 13 on the outer side of the mixing drum 3, the mixing drum 3 is driven to rotate. The spiral blades 21 on the inner wall of the mixing drum 3 keep the solidified soil in a dynamic mixing state during the rotation of the mixing drum 3, effectively preventing the static stratification of the solidified soil during the transportation process.

[0037] 2. Conveying process: The premixed solidified soil after being stirred evenly enters the feeding barrel 14 of the screw conveying mechanism 4 from the mixing barrel 3 under the action of gravity. The motor 3 16 is started, and the motor 3 16 drives the auger 15 inside the feeding barrel 14 to rotate, and the auger 15 pushes the solidified soil along the feeding barrel 14 to the discharge port, so that the solidified soil falls from the discharge port to the scraper feeding mechanism.

[0038] 3. Scraper feeding process: The fallen solidified soil falls on the belt 8 of the scraper feeding mechanism, and a scraper 20 is fixed on the outer surface of the belt 8. The motor on the rear side of the frame plate 5 drives the roller 7 to rotate, and the roller 7 drives the belt 8 to circulate, and the scraper 20 on the belt 8 pushes the solidified soil forward for transportation.

[0039] 4. According to the distance requirements of the construction site, start the electric push rod 9 to adjust the position of the extension plate 6 relative to the frame plate 5, thereby changing the effective conveying length of the belt 8 to adapt to different backfill distances. At the same time, start the electric push rod 3 17, which drives the U-shaped frame 18 to move up and down, and then adjusts the contact position and pressure between the tensioning roller 19 and the inner side of the belt 8, so that the belt 8 maintains a suitable tension and ensures the stability and continuity of transportation.

[0040] 5. Flexibly adjust the point of backfilling and dropping, start the electric push rod 10, the electric push rod 10 pushes the frame plate 5 to rotate horizontally around the hinge point with the mobile frame 1, adjusts the conveying angle of the belt 8, and ensures that the solidified soil can fall at the correct location.

[0041] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A premixed solidified soil backfill feeding device, comprising a mobile frame (1), a mixing base (2) is fixedly provided on the upper end surface of the mobile frame (1), a mixing drum (3) is rotatably connected to and provided on the mixing base (2), and a driving mechanism for driving the mixing drum (3) to rotate is fixedly provided on the upper end surface of the mobile frame (1), characterized in that: The other end of the stirring base (2) is connected to a spiral conveying mechanism (4), and a scraper conveying mechanism is hingedly provided at the front end of the moving frame (1). The scraper conveying mechanism is located below the discharge port of the spiral conveying mechanism (4). The scraper conveying mechanism comprises a frame plate (5) hingedly provided at the front end of the moving frame (1), an extension plate (6) movably inserted at the front end of the frame plate (5), rollers (7) are rotatably provided on the extension plate (6) and the frame plate (5), and belts (8) are connected between the rollers (7). A motor for driving the rollers (7) to rotate is fixedly provided at the rear side of the frame plate (5), an electric push rod (9) for driving the extension plate (6) to extend and retract is fixedly provided at the bottom of the frame plate (5), and a tensioning roller assembly for tensioning the belt (8) is fixedly provided at the bottom of the frame plate (5), and an electric push rod 2 (10) for driving the frame plate (5) to rotate horizontally is hingedly provided between the front end of the moving frame (1) and the frame plate (5).

2. A premixed solidified soil backfill feeding device according to claim 1, characterized in that: The driving mechanism comprises a second motor (11) fixedly arranged on the upper end surface of the moving frame (1), a driving gear (12) fixedly arranged on the driving shaft of the motor (11), and a driven gear (13) fixedly arranged on the outer side surface of the mixing drum (3), the driving gear (12) and the driven gear (13) being meshed with each other.

3. The premixed solidified soil backfill feeding device according to claim 1, characterized in that: The screw conveying mechanism (4) comprises a feeding cylinder (14) fixedly arranged at the discharge end of the stirring base (2), a screw auger (15) being rotatably arranged inside the feeding cylinder (14), and a motor (16) for driving the screw auger (15) to rotate being fixedly arranged outside the feeding cylinder (14).

4. The premixed solidified soil backfill feeding device according to claim 1, characterized in that: The tensioning roller assembly comprises an electric push rod 3 (17) fixedly arranged at the bottom of the frame plate (5), a U-shaped frame (18) being fixedly arranged at the piston end at the lower end of the electric push rod 3 (17), a tensioning roller (19) being rotatably arranged inside the U-shaped frame (18), and the lower end of the tensioning roller (19) being in contact with the inner side surface of the belt (8).

5. The premixed solidified soil backfill feeding device according to claim 1, characterized in that: A scraper (20) is fixedly provided on the outer surface of the belt (8).

6. The premixed solidified soil backfill feeding device according to claim 1, characterized in that: The inner wall of the mixing drum (3) is fixedly provided with a spiral blade (21).

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