Bottom stirring device for hot in-place recycling

Abstract

The utility model relates to a bottom stirring device for hot in-place recycling, which can effectively improve the adaptability and trafficability of a bottom cylinder body to various road surfaces by additionally arranging a floating wheel device and a lifting frame device; the feeding guide mechanism is additionally arranged at the feeding port of the cylinder body main structure, so that the problem that materials are easily collected and stacked at the feeding port is solved, the construction resistance is effectively reduced, and the construction efficiency is improved. The two sides of the cylinder body main structure are provided with the pull-up maintenance doors, so that maintenance and overhaul are more convenient. The assembly type wear-resisting plate assembly is designed at the bottom of the cylinder body main structure, the bottom of the mixing cylinder can be effectively protected, the service life of the whole mixing device is prolonged, the problems of material accumulation, material stacking and unsmooth feeding of the feeding port can be effectively prevented, the mixing device can adapt to various construction site pavements, the maintainability can be effectively improved, and the service life of the mixing device is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of road maintenance equipment, in particular to a bottom-mounted mixing device for in-situ hot recycling. Background Technique

[0002] The remixing machine is the main machine of the in-situ hot recycling complete equipment, and it is an asphalt pavement maintenance equipment with functions such as heating, loosening, adding new asphalt mixture, lifting materials, and mixing. As the core component, the performance of the mixing device determines the quality of the recycled mixture. There are the following defects in the mixing devices on the market: 1. Material accumulation and stacking occur at the feed inlet, resulting in poor feeding, large heat loss, uneven mixing and discharging volume, and large driving resistance; 2. Due to the often uneven construction road surface, the bottom-mounted mixing device has poor adaptability and passability to the road surface; 3. The maintenance performance of the mixing cylinder is poor. The above problems can no longer meet the requirements of high standards and high quality for modern asphalt pavement (especially expressways and municipal roads) maintenance, and affect the construction efficiency.

[0003] Currently, the utility model with the patent number CN204491363U discloses a double-cylinder mixing pot for in-situ hot recycling of asphalt pavement, especially a double-cylinder mixing pot for in-situ hot recycling of asphalt pavement that integrates functions such as mixture heating, mixing, and spraying of recycling additives. It includes: a mixing cylinder group having two mixing cylinders, each mixing cylinder is provided with a mixing shaft, the mixing shaft is connected to a driving device, and each mixing cylinder has a feed inlet, a discharge outlet, an air inlet and an air outlet, and a heating device is communicated at the air inlet; a distributor is arranged above the mixing cylinder group, and has a distribution plate, a turning bracket and a turning cylinder, the lower end of the distribution plate is fixed on the turning bracket, and the other end of the turning bracket is hinged to the turning cylinder; an asphalt spraying device is arranged in the distributor for adding asphalt and adding it into the mixing cylinder group through the distributor; and a recycling agent spraying device is arranged in the distributor for adding a recycling agent and adding it into the mixing cylinder group through the distributor. However, the overall structure of this application scheme is compact and there is no reserved maintenance opening. Once the equipment is damaged, the equipment can only be completely disassembled, which increases the workload of equipment maintenance and affects the construction efficiency. Summary of the Invention

[0004] Aiming at the problems existing in the above-mentioned prior art, the utility model provides a bottom-mounted mixing device for in-situ hot recycling, which can effectively prevent the problems of material accumulation and stacking at the feed inlet and poor feeding, can adapt to various construction site road surfaces, can effectively improve the maintainability, and can extend the service life of the equipment.

[0005] To achieve the above object, the present utility model provides a bottom-mounted stirring device for in-situ hot recycling, which includes a cylinder body, a main structure of the cylinder body, a maintenance door, a support floating wheel device, rollers, bearings, bearing baffles, shafts, mounting plates, shaft baffles, fasteners I, a feeding guiding mechanism, guiding plates, internal reinforcing ribs, mounting fasteners, a lifting frame device, an outer sleeve, an inner sleeve, mechanical limits, pin shafts, fasteners II, a lifting oil cylinder, a wear-resistant plate assembly, a hot air circulation heating wall, a feeding and feeding device, and a secondary remixing machine frame. The cylinder body is installed at the front of the secondary remixing machine frame through four lifting frame devices. A feeding guiding mechanism is installed at the front of the cylinder body, and the feeding guiding mechanism is connected to the feeding and feeding device. Support floating wheel devices are fixedly installed on both sides of the front of the cylinder body. A wear-resistant plate assembly is fixedly installed on the lower surface of the cylinder body. A hot air circulation heating wall is fixedly installed on the upper part of the cylinder body.

[0006] In addition, the bottom-mounted stirring device for in-situ hot recycling proposed according to the above embodiments of the present utility model may further have the following additional technical features:

[0007] As a further improvement of the present utility model, maintenance doors controlled by air cylinders are provided on both sides of the main structure of the cylinder body of the cylinder body.

[0008] As a further improvement of the present utility model, the support floating wheel device includes rollers, bearings, bearing baffles, shafts, mounting plates, shaft baffles, and fasteners I. The rollers are sleeved on the middle of the shaft through bearings. Bearing baffles are provided on both sides of the bearings. Mounting plates are provided outside the bearing baffles, and shaft baffles are provided outside the mounting plates and fixed by fasteners I.

[0009] As a further improvement of the present utility model, the feeding guiding mechanism includes guiding plates, internal reinforcing ribs, and mounting fasteners. The guiding plates are installed at the opening of the front of the cylinder body through mounting fasteners, and internal reinforcing ribs are provided between the guiding plates and the cylinder body.

[0010] As a further improvement of the present utility model, the lifting frame device includes an outer sleeve, an inner sleeve, mechanical limits, pin shafts, fasteners II, and a lifting oil cylinder. The top of the outer sleeve is connected to the secondary remixing machine frame through a bracket and fasteners II. The lower end of the outer sleeve is sleeved with the inner sleeve. The lower end of the inner sleeve is connected to the cylinder body through a pin shaft. The cylinder body end and the piston rod end of the lifting oil cylinder are respectively hinged to the sides of the outer sleeve and the inner sleeve. Mechanical limits are provided on the surface of the inner sleeve to limit the stroke of the lifting oil cylinder in cooperation with the waist-shaped holes opened on the surface of the outer sleeve.

[0011] As a further improvement of the present utility model, the wear-resistant plate assembly is divided into two parts, front and rear, and is respectively fixedly installed on the front and rear parts of the lower surface of the cylinder body through screws, and corresponding grooves are designed in the feeding direction.

[0012] With the above solution, the utility model has at least the following advantages: Compared with conventional remixers, through the added floating wheel device and lifting frame device, the adaptability and passability of the bottom-mounted cylinder body to various road surfaces can be effectively improved; by adding a feeding guiding mechanism at the feeding port of the main structure of the cylinder body, the problems of easy aggregation and piling of materials at the feeding port are solved, the construction resistance is effectively reduced, and the construction efficiency is improved. The upper-pulling maintenance doors are designed on both sides of the main structure of the cylinder body, which is more convenient for maintenance and repair. The assembled wear-resistant plate assembly is designed at the bottom of the main structure of the cylinder body, which can effectively protect the bottom of the mixing cylinder, improve the service life of the entire mixing device, effectively prevent the problems of material accumulation and blockage at the feeding port, and can adapt to various construction site road surfaces, effectively improving the maintainability and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional schematic diagram of the bottom-mounted mixing device for in-situ hot recycling installed on the secondary remixing machine frame of the two-stage mixing device for in-situ hot recycling;

[0014] Figure 2 is a three-dimensional view of the cylinder body of the bottom-mounted mixing device for in-situ hot recycling installed with a support floating wheel device and a feeding guiding mechanism;

[0015] Figure 3 is an unfolded schematic diagram of the cylinder body maintenance door of the bottom-mounted mixing device for in-situ hot recycling;

[0016] Figure 4 is an installation structure diagram of the support floating wheel device and the lifting frame device of the cylinder body of the bottom-mounted mixing device for in-situ hot recycling;

[0017] Figure 5 is a structure diagram of the support floating wheel device of the bottom-mounted mixing device for in-situ hot recycling;

[0018] Figure 6 is a structure diagram of the feeding guiding mechanism and the feeding and feeding device of the bottom-mounted mixing device for in-situ hot recycling;

[0019] Figure 7 is a structure diagram of the lifting frame device of the bottom-mounted mixing device for in-situ hot recycling;

[0020] Figure 8 is Figure 1 a partial enlarged view of A of

[0021] Figure 9 is a bottom view of the bottom-mounted mixing device for in-situ hot recycling;

[0022] In the figure: 1. Cylinder block, 1-1. Main structure of the cylinder block, 1-2. Maintenance door, 2. Support floating wheel device, 2-1. Roller, 2-2. Bearing, 2-3. Bearing baffle, 2-4. Shaft, 2-5. Mounting plate, 2-6. Shaft baffle, 2-7. Fastener 1, 3. Feed guiding mechanism, 3-1. Guide plate, 3-2. Internal reinforcing rib, 3-3. Mounting fastener, 4. Lifting frame device, 4-1. Outer sleeve, 4-2. Inner sleeve, 4-3. Mechanical limit, 4-4. Pin shaft, 4-5. Fastener 2, 4-6. Lifting oil cylinder, 5. Wear-resistant plate assembly, 6. Hot air circulation heating wall, 7. Feeding device, 8. Secondary remixing machine frame. Specific implementation mode

[0023] The following describes the bottom-mounted mixing device for in-situ hot recycling of the present utility model with reference to the accompanying drawings.

[0024] In the first embodiment of the present application, as Figures 1 to 5 shown, the bottom-mounted mixing device for in-situ hot recycling of the present application (hereinafter simply referred to as "this patent") includes a cylinder block 1, a main structure 1-1 of the cylinder block, a maintenance door 1-2, a support floating wheel device 2, a roller 2-1, a bearing 2-2, a bearing baffle 2-3, a shaft 2-4, a mounting plate 2-5, a shaft baffle 2-6, a fastener 1 2-7, a feed guiding mechanism 3, a guide plate 3-1, an internal reinforcing rib 3-2, a mounting fastener 3-3, a lifting frame device 4, an outer sleeve 4-1, an inner sleeve 4-2, a mechanical limit 4-3, a pin shaft 4-4, a fastener 2 4-5, a lifting oil cylinder 4-6, a wear-resistant plate assembly 5, a hot air circulation heating wall 6, a feeding device 7 and a secondary remixing machine frame 8. The cylinder block 1 is installed at the front of the secondary remixing machine frame 8 through four lifting frame devices 4. A feed guiding mechanism 3 is installed at the front of the cylinder block 1, and the feed guiding mechanism 3 is connected to the feeding device 7. Support floating wheel devices 2 are fixedly installed on both sides of the front of the cylinder block 1. A wear-resistant plate assembly 5 is fixedly installed on the lower surface of the cylinder block 1. A hot air circulation heating wall 6 is fixedly installed on the upper part of the cylinder block 1. Maintenance doors 1-2 controlled by cylinders are arranged on both sides of the main structure 1-1 of the cylinder block 1. The support floating wheel device 2 includes a roller 2-1, a bearing 2-2, a bearing baffle 2-3, a shaft 2-4, a mounting plate 2-5, a shaft baffle 2-6 and a fastener 1 2-7. The roller 2-1 is sleeved on the middle of the shaft 2-4 through the bearing 2-2. Bearing baffles 2-3 are arranged on both sides of the bearing 2-2. A mounting plate 2-5 is arranged outside the bearing baffle 2-3, and a shaft baffle 2-6 is arranged outside the mounting plate 2-5 and fixed by a fastener 1 2-7.

[0025] The double-cylinder mixing pot of the in-situ hot recycling mixer for asphalt pavement with the utility model number CN204491363U (hereinafter referred to as "this patent") has a compact overall structure and no reserved maintenance openings. Once the equipment is damaged, the entire equipment can only be completely disassembled, which increases the workload of equipment maintenance and affects the construction efficiency. At the same time, since this patent does not have a moving device, it is not suitable for continuous road construction. However, in this patent, a maintenance door 1-2 is added to the main structure 1-1 of the cylinder body to facilitate maintenance, and a support floating wheel device 2 and a lifting frame device 4 are added to the main structure 1-1 of the cylinder body so that it can adapt to most road surfaces, and thus continuous construction can be carried out, effectively solving the problems of large maintenance workload and inability to continuously construct on the road.

[0026] The structure of the second embodiment is basically the same as that of the first embodiment, except that, as Figures 6 to 8 shown, as a further improvement scheme of the utility model, the feeding guiding mechanism 3 includes a guiding plate 3-1, internal reinforcing ribs 3-2 and mounting fasteners 3-3. The guiding plate 3-1 is installed at the front opening of the cylinder body 1 through the mounting fasteners 3-3, and internal reinforcing ribs 3-2 are arranged between the guiding plate 3-1 and the cylinder body 1. The lifting frame device 4 includes an outer sleeve 4-1, an inner sleeve 4-2, a mechanical limit 4-3, a pin shaft 4-4, a second fastener 4-5 and a lifting oil cylinder 4-6. The top of the outer sleeve 4-1 is connected to the secondary mixing machine frame 8 through a bracket and the second fastener 4-5. The lower end of the outer sleeve 4-1 is sleeved with the inner sleeve 4-2. The lower end of the inner sleeve 4-2 is connected to the cylinder body 1 through the pin shaft 4-4. The cylinder end and the piston rod end of the lifting oil cylinder 4-6 are respectively hinged to the sides of the outer sleeve 4-1 and the inner sleeve 4-2. A mechanical limit 4-3 is arranged on the surface of the inner sleeve 4-2 to cooperate with the kidney-shaped hole opened on the surface of the outer sleeve 4-1 to limit the stroke of the lifting oil cylinder 4-6.

[0027] In order to further optimize the working efficiency of this application, as Figure 9 shown, the wear-resistant plate assembly 5 is divided into two parts, front and rear, and is respectively fixedly installed at the front and rear parts of the lower surface of the cylinder body 1 through screws, and corresponding grooves are designed in the feeding direction, effectively preventing the problem of stacking resistance caused by uneven feeding, and the wear-resistant plate assembly 5 installed with screws can be replaced in time according to needs.

[0028] During use, install the in-situ hot recycling bottom-mounted mixing device and connect the corresponding pipeline equipment to put it into use.

[0029] When the utility model is in use, the specific work is as follows:

[0030] During use, when the equipment is moving forward, the material feeding device 7 feeds the materials onto the guide plate 3-1 of the feeding guiding mechanism 3 and into the cylinder block 1. When the cylinder block 1 is moving forward, the supporting floating wheel device 2 always keeps in contact with the ground. If it encounters a bumpy road surface, first, the supporting floating wheel device 2 receives the supporting force from the ground. At this time, the lifting oil cylinder 4-6 of the lifting frame device 4 is in a pressureless state, and the cylinder block 1 can achieve the floating function under the action of the supporting floating wheel device 2. When the mixing cylinder is operating, it can effectively improve the adaptability and passability of the bottom-mounted mixing cylinder to various road surfaces. The main function of the lifting frame device 4 is to realize the lifting function of the bottom-mounted mixing cylinder, ensure the passability of the bottom-mounted mixing cylinder on special road surfaces during driving, and ensure the maintenance space in the later stage.

[0031] During later maintenance, only need to make the lifting oil cylinder 4-6 contract through the hydraulic control device, so that the outer sleeve 4-1 and the inner sleeve 4-2 contract correspondingly, then the position of the main structure 1-1 of the cylinder block can be lifted to a height convenient for maintenance. Then open the maintenance door 1-2 to start the maintenance. After the maintenance is completed, directly reset the main structure 1-1 of the cylinder block.

[0032] In summary, for the bottom-mounted mixing device for in-situ hot recycling in the embodiment of the present invention, through the added floating wheel device 2 and lifting frame device 4, the adaptability and passability of the bottom-mounted cylinder block 1 to various road surfaces can be effectively improved; by adding the feeding guiding mechanism 3 at the feeding port of the main structure 1-1 of the cylinder block, the problems of easy material accumulation and piling at the feeding port are solved, the construction resistance is effectively reduced, and the construction efficiency is improved. The maintenance doors 1-2 are designed as pull-up type on both sides of the main structure 1-1 of the cylinder block, which is more convenient for maintenance and repair. The assembled wear-resistant plate assembly 5 is designed at the bottom of the main structure 1-1 of the cylinder block, which can effectively protect the bottom of the mixing cylinder, improve the service life of the whole mixing device, effectively prevent the problems of material accumulation, piling and poor feeding at the feeding port, can adapt to various construction site road surfaces, can effectively improve the maintainability, and improve the service life of the equipment.

[0033] Those of ordinary skill in the art should understand that: the discussion of any embodiment above is only exemplary, and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bottom-mounted stirring device for in-situ heat regeneration, comprising a cylinder body (1), a cylinder body main structure (1-1), a feed guide mechanism (3), a hot air circulation heating wall (6), a feed collection device (7) and a secondary remixer frame (8), characterized in that: The cylinder body (1) is installed at the front of the secondary remixing machine frame (8) through four lifting frame devices (4), a feed guide mechanism (3) is installed at the front of the cylinder body (1), the feed guide mechanism (3) is connected to the feeding device (7), supporting floating wheel devices (2) are fixedly installed on both sides of the front of the cylinder body (1), a wear-resistant plate assembly (5) is fixedly installed on the lower surface of the cylinder body (1), and a hot air circulation heating wall (6) is fixedly installed on the upper part of the cylinder body (1).

2. The bottom-mounted stirring device for in-situ heat regeneration according to claim 1, characterized in that: Maintenance doors (1-2) controlled to open and close by a cylinder are arranged on both sides of the cylinder main structure (1-1) of the cylinder (1).

3. The bottom-mounted stirring device for in-situ heat regeneration according to claim 2, characterized in that: The supporting floating wheel device (2) comprises a roller (2-1), a bearing (2-2), a bearing baffle (2-3), a shaft (2-4), a mounting plate (2-5), a shaft baffle (2-6) and a fastener (2-7); the roller (2-1) is sleeved on the middle part of the shaft (2-4) through the bearing (2-2); bearing baffles (2-3) are arranged on both sides of the bearing (2-2); a mounting plate (2-5) is arranged outside the bearing baffle (2-3); and a shaft baffle (2-6) is arranged outside the mounting plate (2-5) and fixed by a fastener (2-7).

4. The bottom-mounted stirring device for in-situ heat regeneration according to claim 3, characterized in that: The feed guide mechanism (3) comprises a guide plate (3-1), internal reinforcing ribs (3-2) and mounting fasteners (3-3); the guide plate (3-1) is mounted at the front opening of the cylinder body (1) via the mounting fasteners (3-3); and the internal reinforcing ribs (3-2) are provided between the guide plate (3-1) and the cylinder body (1).

5. The bottom-mounted stirring device for in-situ heat regeneration according to claim 4, characterized in that: The lifting frame device (4) comprises an outer sleeve (4-1), an inner sleeve (4-2), a mechanical limiter (4-3), a pin shaft (4-4), a second fastener (4-5) and a lifting cylinder (4-6); the top of the outer sleeve (4-1) is connected to the secondary remixer frame (8) through a bracket and the second fastener (4-5); the lower end of the outer sleeve (4-1) is sleeved with the inner sleeve (4-2); the lower end of the inner sleeve (4-2) is connected to the cylinder body (1) through the pin shaft (4-4); the sides of the outer sleeve (4-1) and the inner sleeve (4-2) are respectively hinged to the cylinder body end and the piston rod end of the lifting cylinder (4-6); the surface of the inner sleeve (4-2) is provided with a mechanical limiter (4-3) which cooperates with the waist-shaped hole opened on the surface of the outer sleeve (4-1) to limit the stroke of the lifting cylinder (4-6).

6. The bottom-mounted stirring device for in-situ heat regeneration according to claim 1, characterized in that: The wear-resistant plate assembly (5) is divided into two parts, front and rear, which are respectively fixed to the front and rear parts of the lower surface of the cylinder body (1) by screws.

7. The bottom-mounted stirring device for in-situ heat regeneration according to claim 1, characterized in that: The wear-resistant plate of the wear-resistant plate assembly (5) is made of Harddox500, and a corresponding groove is designed in the feeding direction.

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