In-place hot recycling apparatus and its screed adjusting device and adjusting method

Abstract

The application discloses a kind of in-place hot recycling equipment and its screed adjusting device, the left and right platforms of vehicle frame are connected with the upper part of left traction mechanism and right traction mechanism respectively, the left and right extension arms of vehicle frame are connected with the upper part of left outer arm and right outer arm respectively, the lower part of left outer arm and right outer arm is respectively connected with the upper part of one inner wall component, the lower part of two inner wall components is respectively connected with the rear part of left big arm mechanism and right big arm mechanism, the rear part of left big arm mechanism and right big arm mechanism is connected with screed, the lower part of left traction mechanism and right traction mechanism is respectively connected with first big arm limiting mechanism, the front part of left big arm mechanism and right big arm mechanism is respectively connected with second big arm limiting mechanism.The application discloses the adjusting method of screed adjusting device and the in-place hot recycling equipment containing screed adjusting device.The application provides a kind of in-place hot recycling equipment and its screed adjusting device and leveling method, can adapt to the adjustment of multiple complex construction conditions adjustment and transport state adjustment of screed, realize the height continuous regulation and paving pitch continuous regulation of screed.

Description

Technical Field

[0001] This invention relates to an in-situ thermal recycling device and its screed plate adjustment device and adjustment method, belonging to the technical field of road maintenance equipment. Background Technology

[0002] In the on-site thermal recycling process, to shorten the construction length of the unit, reduce heat loss from the asphalt pavement, save labor costs, and reduce the use of one paver, a screed device needs to be added to the thermal recycling equipment. Currently, screeds are being added to thermal recycling units. However, given the complexity of thermal recycling construction conditions and processes, the screed needs to adapt to various conditions (transportation, adjustment of entry and exit positions, and adjustment of pitch angle). However, the adaptability of the screed device is poor; for example, it cannot adapt to the constant adjustment of screed height and pitch angle, resulting in poor asphalt pavement smoothness and compaction, leading to early rutting and peeling defects in the recycled asphalt pavement. Furthermore, it cannot simultaneously meet the needs of construction and transportation. On-site disassembly and assembly of screeds has drawbacks such as high on-site labor intensity and poor assembly stability. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an on-site thermal recycling equipment and its screed adjustment device, which can adapt to various complex construction conditions and transportation status adjustments of the screed, and realize continuous adjustment of the height of the screed and continuous adjustment of the paving pitch angle.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] An adjusting device for an ironing plate suitable for in-situ thermal recycling includes a frame. The left and right platforms of the frame are respectively connected to the upper parts of a left traction mechanism and a right traction mechanism. The left and right extension arms of the frame are respectively connected to the upper parts of a left outer arm and a right outer arm. The lower parts of the left and right outer arms are respectively fitted onto the upper parts of an inner wall assembly. The lower parts of the two inner wall assemblies are respectively connected to the rear parts of a left main arm mechanism and a right main arm mechanism. Telescopic cylinders are respectively connected between the upper parts of the left and right outer arms and the lower parts of the inner wall assemblies. The rear parts of the left and right main arm mechanisms are connected to the ironing plate. The lower parts of the traction mechanism and the right traction mechanism are respectively connected to the first boom limiting mechanism. The two first boom limiting mechanisms are respectively connected to the front of the left boom mechanism and the right boom mechanism to restrict the left and right movement of the left boom mechanism and the right boom mechanism. The front of the left boom mechanism and the right boom mechanism are respectively connected to the second boom limiting mechanism to restrict the left boom mechanism and the right boom mechanism to restrict the forward and backward movement of the left boom mechanism and the right boom mechanism. The two second boom limiting mechanisms are respectively connected to the lower part of a lifting and leveling cylinder. The upper parts of the two lifting and leveling cylinders are respectively connected to the lower part of the left traction mechanism and the right traction mechanism.

[0006] A lateral pulling mechanism connects the middle part of the left traction mechanism and the middle part of the right traction mechanism.

[0007] A walking system is installed under the frame, and a loosening device is connected to the frame via a loosening adjustment device. The loosening device is located between the ironing board and the walking system.

[0008] The upper parts of the two telescopic cylinders are respectively connected to the upper parts of the left and right outer arms via first pins, and the lower parts of the two telescopic cylinders are respectively connected to the lower parts of the two inner wall assemblies via first pins; the lower parts of the two inner wall assemblies are respectively connected to the rear parts of the left and right upper arm mechanisms via second pins.

[0009] The left and right traction mechanisms, the left and right outer arms, and the left and right upper arm mechanisms are all arranged symmetrically on the left and right sides.

[0010] A method for adjusting a screed plate adjustment device for in-situ thermal recycling, characterized in that it includes:

[0011] By controlling the retraction of the lifting and leveling cylinder, the second boom limit mechanism is lifted, the front ends of the right boom mechanism and the left boom mechanism are lifted, the rear ends of the right boom mechanism and the left boom mechanism rotate around the second pin shaft, the front end of the ironing plate is raised, and the front end of the ironing plate forms a pitch angle with the ground plane, realizing stepless adjustment of the pitch angle.

[0012] When the telescopic cylinder retracts, the inner wall assembly slides upward along the inner slide of the outer wall. At the same time, the inner wall assembly rotates around the second pin, the outer wall rotates around the first pin, and the right and left arm mechanisms rotate around the second arm limiting mechanism. Finally, the ironing board rises, achieving stepless height adjustment.

[0013] An in-situ thermal recycling device, equipped with the aforementioned ironing plate adjustment device suitable for in-situ thermal recycling.

[0014] The beneficial effects of the present invention are as follows: The present invention provides an adjustment device for screeds suitable for in-situ hot recycling. It adopts a boom and an inner and outer nested telescopic mechanism. Under the condition of limited space at the rear of the vehicle frame, it overcomes the interference problem of moving parts. By controlling the telescopic cylinder and the lifting and leveling cylinder, it realizes the continuous adjustment of the screed height, the continuous adjustment of the paving pitch angle, and the anti-sway limit throughout the entire process. It can adapt to various complex construction conditions and transportation status adjustments of the screed, and has good adaptability to working conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a portion of the three-dimensional structure of the ironing plate adjustment device in this invention;

[0016] Figure 2This is a three-dimensional structural schematic diagram of the ironing plate adjustment device in this invention;

[0017] Figure 3 This is a diagram illustrating the hot recycling construction process of the present invention;

[0018] Figure 4 This is a diagram of the hot regeneration process on a flatbed truck according to the present invention.

[0019] The reference numerals in the diagram are as follows: 1-Frame; 2-1-Right traction mechanism; 2-2-Right outer boom; 2-3 First pin; 2-4 Telescopic cylinder; 2-5-Inner wall assembly; 2-6-Second pin; 2-7-Right boom mechanism; 2-8-Left outer boom; 2-9-Left boom mechanism; 2-10-Horizontal pulling mechanism; 2-11-First boom limiting mechanism; 2-12-Left traction mechanism; 2-13-Lifting and leveling cylinder; 2-14-Second boom limiting mechanism; 3-Screed; 4-Loosening device; 5-Travel system. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the scope of protection of the present invention.

[0021] like Figure 1 and Figure 2 As shown, this invention discloses an adjusting device for an ironing plate suitable for in-situ thermal recycling, comprising a frame 1. The left and right platforms of the frame 1 are respectively connected to the upper parts of a left traction mechanism 2-12 and a right traction mechanism 2-1. A transverse pulling mechanism 2-10 is connected between the middle parts of the left traction mechanism 2-12 and the middle parts of the right traction mechanism 2-1, and the transverse pulling mechanism 2-10 is used to improve the stability of the device. In this invention, the left traction mechanism 2-12 and the right traction mechanism 2-1, the left outer arm 2-8 and the right outer arm 2-2, and the left upper arm mechanism 2-9 and the right upper arm mechanism 2-7 are all arranged symmetrically on the left and right sides.

[0022] The left and right extension arms of the frame 1 are connected to the upper parts of the left outer arm 2-8 and the right outer arm 2-2, respectively. The lower parts of the left outer arm 2-8 and the right outer arm 2-2 are respectively fitted onto the upper part of an inner wall assembly 2-5. The lower parts of the two inner wall assemblies 2-5 are respectively connected to the rear parts of the left main arm mechanism 2-9 and the right main arm mechanism 2-7. Telescopic cylinders 2-4 are connected between the upper parts of the left outer arm 2-8 and the right outer arm 2-2 and the lower parts of the inner wall assembly 2-5.

[0023] The upper parts of the two telescopic cylinders 2-4 are respectively connected to the upper parts of the left outer arm 2-8 and the right outer arm 2-2 via the first pin 2-3, and the lower parts of the two telescopic cylinders 2-4 are respectively connected to the lower parts of the two inner wall assemblies 2-5 via the first pin 2-3; the lower parts of the two inner wall assemblies 2-5 are respectively connected to the rear parts of the left upper arm mechanism 2-9 and the right upper arm mechanism 2-7 via the second pin 2-6. This invention controls the telescopic cylinders 2-4 to extend and retract, thereby driving the left upper arm mechanism 2-9 and the right upper arm mechanism 2-7 to move.

[0024] The rear parts of the left upper arm mechanism 2-9 and the right upper arm mechanism 2-7 are connected to the ironing plate 3 to drive its movement. A walking system 5 is installed under the frame 1, and a loosening device 4 is connected to the frame 1 via an adjustment device. The loosening device 4 is located between the ironing plate 3 and the walking system 5. In this invention, the positions of the left outer arm 2-8 and the right outer arm 2-2 are controllable and can be limited by the inner and outer wall rectangular mechanisms to achieve the left and right swaying limit of the ironing plate 3.

[0025] The lower parts of the left traction mechanism 2-12 and the right traction mechanism 2-1 are respectively connected to first boom limiting mechanisms 2-11. The two first boom limiting mechanisms 2-11 are respectively connected to the front parts of the left boom mechanism 2-9 and the right boom mechanism 2-7, used to restrict the left and right movement of the left boom mechanism 2-9 and the right boom mechanism 2-7. The front parts of the left boom mechanism 2-9 and the right boom mechanism 2-7 are respectively connected to second boom limiting mechanisms 2-14, used to restrict the left boom mechanism 2-9 and the right boom mechanism 2-7's forward and backward movement. The two second boom limiting mechanisms 2-14 are respectively connected to the lower part of a lifting and leveling cylinder 2-13. The upper parts of the two lifting and leveling cylinders 2-13 are respectively connected to the lower parts of the left traction mechanism 2-12 and the right traction mechanism 2-1. This invention drives the left boom mechanism 2-9 and the right boom mechanism 2-7 to move by controlling the lifting and leveling cylinders 2-13.

[0026] The present invention also discloses an in-situ thermal recycling device, which is equipped with the above-mentioned ironing plate adjustment device suitable for in-situ thermal recycling.

[0027] In this invention, the right traction mechanism 2-1, the right outer arm 2-2, the left outer arm 2-8, the horizontal pulling mechanism 2-10, the first large arm limiting mechanism 2-11, and the left traction mechanism 2-12 are all in a fixed state.

[0028] Figure 3In the construction phase, due to factors such as road surface undulations and paving thickness adjustments, this invention controls the retraction of the lifting and leveling cylinder 2-13 to drive the second boom limiting mechanism 2-14 to lift, thereby raising the front ends of the right boom mechanism 2-7 and the left boom mechanism 2-9. The rear ends of the right boom mechanism 2-7 and the left boom mechanism 2-9 rotate around the second pin 2-6, raising the front end of the screed 3. The front end of the screed 3 forms a pitch angle with the ground plane, realizing stepless adjustment of the pitch angle to meet the needs of various road conditions and paving thicknesses.

[0029] This invention controls the inner wall assembly 2-5 to slide upwards along the inner slide rail of the outer wall when the telescopic cylinder 2-4 retracts. Simultaneously, the inner wall assembly 2-5 rotates around the second pin 2-6, the outer wall rotates around the first pin 2-3, and the right and left arm mechanisms 2-7 and 2-9 rotate around the second arm limiting mechanism 2-14. Finally, the ironing plate 3 rises, as shown in the image. Figure 4 During the process of raising the ironing plate 3, the height is infinitely adjustable to meet the height requirements of various working conditions.

[0030] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for adjusting a screed plate suitable for in-situ thermal recycling, characterized in that: The vehicle includes a frame (1), the left and right platforms of which are respectively connected to the upper parts of the left traction mechanism (2-12) and the right traction mechanism (2-1). The left and right extension arms of the frame (1) are respectively connected to the upper parts of the left outer arm (2-8) and the right outer arm (2-2). The lower parts of the left outer arm (2-8) and the right outer arm (2-2) are respectively fitted onto the upper part of an inner wall assembly (2-5). The lower parts of the two inner wall assemblies (2-5) are respectively rotatably connected to the rear parts of the left upper arm mechanism (2-9) and the right upper arm mechanism (2-7). The lower part of the inner wall assembly (2-5) is connected to the rear of the left upper arm mechanism (2-9) and the right upper arm mechanism (2-7) via a second pin (2-6). The upper parts of the left outer arm (2-8) and the right outer arm (2-2) are respectively connected to the lower part of the inner wall assembly (2-5) by telescopic cylinders (2-4). The upper parts of the two telescopic cylinders (2-4) are respectively connected to the upper parts of the left outer arm (2-8) and the right outer arm (2-2) via a first pin (2-3). The lower parts of the two telescopic cylinders (2-4) are respectively... The left and right upper arm mechanisms (2-9 and 2-7) are connected to the lower parts of the two inner wall components (2-5) via a first pin (2-3). The rear parts of the left upper arm mechanism (2-9) and the right upper arm mechanism (2-7) are connected to the ironing plate (3). The lower parts of the left traction mechanism (2-12) and the right traction mechanism (2-1) are respectively connected to the first upper arm limiting mechanism (2-11). The two first upper arm limiting mechanisms (2-11) are respectively connected to the front parts of the left upper arm mechanism (2-9) and the right upper arm mechanism (2-7) to limit the left upper arm mechanism (2-9) and the right upper arm mechanism (2-7). The boom mechanism (2-7) moves left and right. The front parts of the left boom mechanism (2-9) and the right boom mechanism (2-7) are respectively connected to the second boom limiting mechanism (2-14) to limit the forward and backward movement of the left boom mechanism (2-9) and the right boom mechanism (2-7). The two second boom limiting mechanisms (2-14) are respectively connected to the lower part of a lifting and leveling cylinder (2-13). The upper parts of the two lifting and leveling cylinders (2-13) are respectively connected to the lower part of the left traction mechanism (2-12) and the right traction mechanism (2-1).

2. The ironing plate adjustment device for on-site thermal recycling according to claim 1, characterized in that: A lateral pulling mechanism (2-10) is connected between the middle part of the left traction mechanism (2-12) and the middle part of the right traction mechanism (2-1).

3. The ironing plate adjustment device for on-site thermal recycling according to claim 1, characterized in that: The frame (1) is provided with a walking system (5) and a loosening device (4) is connected to the frame (1) via a loosening adjustment device. The loosening device (4) is located between the ironing board (3) and the walking system (5).

4. The ironing plate adjustment device for on-site thermal recycling according to claim 1, characterized in that: The left traction mechanism (2-12) and right traction mechanism (2-1), the left outer arm (2-8) and right outer arm (2-2), and the left upper arm mechanism (2-9) and right upper arm mechanism (2-7) are all arranged symmetrically on the left and right sides.

5. A method for adjusting a screed adjustment device for in-situ thermal recycling as described in any one of claims 1 to 4, characterized in that: include: By controlling the retraction of the lifting and leveling cylinder (2-13), the second boom limiting mechanism (2-14) is lifted, the front ends of the right boom mechanism (2-7) and the left boom mechanism (2-9) are lifted, the rear ends of the right boom mechanism (2-7) and the left boom mechanism (2-9) rotate around the second pin (2-6), the front end of the ironing plate (3) is raised, and the front end of the ironing plate (3) forms a pitch angle with the ground plane, thus realizing stepless adjustment of the pitch angle. When the telescopic cylinder (2-4) retracts, the inner wall assembly (2-5) slides upward along the inner slide of the outer wall. At the same time, the inner wall assembly (2-5) rotates around the second pin (2-6), the outer wall rotates around the first pin (2-3), and the right arm mechanism (2-7) and the left arm mechanism (2-9) rotate around the second arm limiting mechanism (2-14). Finally, the ironing board (3) rises, achieving stepless height adjustment.

6. An in-situ thermal regeneration device, characterized in that: It is equipped with the ironing plate adjustment device for in-situ thermal recycling as described in any one of claims 1-4.

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