Device for heating and preserving heat of asphalt paving channel of paver

Abstract

A device for heating and heat preservation of an asphalt paving channel of a paver comprises a paver ceiling stand column, the paver ceiling stand column is movably connected with a three-dimensional heat preservation cover set, and the three-dimensional heat preservation cover set comprises a plurality of three-dimensional heat preservation covers which can be transversely unfolded in sequence and achieve covering of a hydraulic telescopic ironing plate. The three-dimensional heat preservation cover set can preserve heat of asphalt concrete in construction, and the heating strips on the inner wall of the three-dimensional heat preservation cover set can heat the asphalt concrete in the construction, so that the three-dimensional heat preservation cover set can preserve heat of the asphalt concrete in the construction, and the heating strips on the inner wall of the three-dimensional heat preservation cover set can heat the asphalt concrete in the construction. Heat loss is prevented in a targeted manner, the asphalt concrete paving quality is improved, the effective rolling time of an asphalt paver is prolonged, and the road construction quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a device for heating and insulating an asphalt paving channel of a paver. Background Art

[0002] An asphalt paver is a type of construction equipment used in projects such as highways, municipal roads, airports, and ports. It is primarily used to evenly spread asphalt concrete on the pavement base, performing preliminary compaction and leveling. The screed is the main working device of the asphalt paver, responsible for evenly spreading the asphalt concrete and performing preliminary compaction.

[0003] Screeds are generally categorized by their widening method: mechanically extended screeds and hydraulically retractable screeds. Mechanically extended screeds are assembled by bolting a basic screed to an extended screed to create the desired working width. Hydraulically retractable screeds utilize hydraulic cylinders to continuously adjust their working length, making them suitable for construction environments requiring variable paving widths. Compared to mechanically extended screeds, hydraulically retractable screeds offer greater flexibility in width adjustment, eliminating the need for frequent screed assembly during construction. Consequently, hydraulically retractable screeds are more widely used in municipal engineering, ramps, and maintenance applications.

[0004] The hydraulic telescopic screed can be used all year round, but when the temperature difference between the inside and outside is large, especially when the outside temperature is low, the heat of the asphalt inside the asphalt paver is easy to be lost. The stirring and transportation of the asphalt during the auger operation also accelerates the loss of heat of the asphalt, which is not conducive to the construction of asphalt concrete.

[0005] In order to prevent heat loss in a targeted manner and improve paving quality, prolong the effective rolling time of an asphalt paver and improve road construction quality, a device for heating and insulating the asphalt paving channel of a paver is designed. Utility Model Content

[0006] The utility model is intended to overcome the above-mentioned defects in the prior art and provides a device for heating and insulating the asphalt paving channel of a paver, which can specifically prevent heat loss and improve the paving quality, extend the effective rolling time of the asphalt paver, and improve the road construction quality.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is: a device for heating and insulating the asphalt paving channel of a paver, including a paver roof column, and a three-dimensional insulation cover group movably connected to the paver roof column, the three-dimensional insulation cover group includes a plurality of three-dimensional insulation covers that can be sequentially expanded horizontally and covered by a hydraulic telescopic ironing plate, and a heating strip for heating the hydraulic telescopic ironing plate is provided on the inner wall of the three-dimensional insulation cover.

[0008] As a preferred solution of the present invention, the three-dimensional thermal insulation cover includes a mounting block, and the mounting block is located on a side surface of the three-dimensional thermal insulation cover.

[0009] As a preferred solution of the utility model, it includes at least two universal joint groups, each of which includes two universal joints. One universal joint in the universal joint group is arranged on the roof column of the paver, and the other universal joint is arranged on the mounting block of the three-dimensional insulation cover.

[0010] As a preferred solution of the present invention, the universal joints located on the roof columns of the paver are all located on the same vertical line.

[0011] As a preferred solution of the present invention, the two universal joints in the universal joint assembly are connected by a universal metal hose.

[0012] As a preferred solution of the present invention, the length of the universal metal hose at the upper end is greater than the length of the universal metal hose at the lower end.

[0013] As a preferred solution of the present invention, adjacent three-dimensional insulation covers are connected by slide rail slider assemblies symmetrically arranged front and back, the upper three-dimensional insulation cover moves laterally based on the lower three-dimensional insulation cover, and the distance between adjacent three-dimensional insulation covers is 5 cm.

[0014] As a preferred solution of the present invention, limit blocks are provided on both sides of the slide rail and slider assembly, and the limit blocks are fixedly connected to the slide rails of the slide rail and slider assembly by bolts.

[0015] As a preferred solution of the present invention, a plurality of heating strips are arranged at equal angles along the inner wall of the three-dimensional heat-insulating cover, and the thickness of the heating strips is less than 5 cm.

[0016] As a preferred solution of the present invention, it includes a temperature sensor, which is located on the inner wall of the innermost three-dimensional insulation cover of the three-dimensional insulation cover group, and is located between the heating strips. The thickness of the temperature sensor is less than 5 cm.

[0017] The beneficial effects of the utility model are:

[0018] 1. The three-dimensional thermal insulation cover group in the utility model can keep the asphalt concrete under construction warm, and the heating strips on the inner wall of the three-dimensional thermal insulation cover group can heat the asphalt concrete under construction, thereby specifically preventing heat loss and improving the asphalt concrete paving quality, extending the effective rolling time of the asphalt paver, and improving the road construction quality.

[0019] 2. The utility model realizes the direction adjustment of the three-dimensional thermal insulation cover group through the setting of universal joints and universal metal hoses, and realizes the horizontal expansion of the three-dimensional thermal insulation cover in the three-dimensional thermal insulation cover group through the slide rail slider assembly, so that the three-dimensional thermal insulation cover group can adapt to the retractable ironing plate to achieve a thermal insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model;

[0022] Figure 3 This is a connection diagram of the universal joint of the utility model;

[0023] Reference numerals in the figure: 1. paver roof column, 2. three-dimensional insulation cover, 3. heating strip, 4. slide rail slider assembly, 5. temperature sensor, 6. universal joint, 7. universal metal hose, 8. limit block, 9. handle, 21. mounting block, 200. three-dimensional insulation cover assembly, 600. universal joint assembly. DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings.

[0025] like Figure 1-Figure 2 As shown, a device for heating and insulating an asphalt paving channel of a paver includes a paver roof column 1, to which a three-dimensional insulation cover group 200 is movably connected. The three-dimensional insulation cover group 200 includes a plurality of three-dimensional insulation covers 2 that can be sequentially expanded laterally and covered by a hydraulic telescopic screed. A heating strip 3 for heating the hydraulic telescopic screed is provided on the inner wall of the three-dimensional insulation cover 2.

[0026] The hydraulic telescopic ironing plate can be extended and retracted only on two sides. Accordingly, one device is provided on each side of the hydraulic telescopic ironing plate.

[0027] Figure 1 This is a structural diagram of the three-dimensional thermal insulation cover assembly 200 when not in use. Figure 2 It is a structural schematic diagram of the three-dimensional thermal insulation cover assembly 200 when in use.

[0028] Specifically, when the three-dimensional thermal insulation cover group 200 is not in use, the several three-dimensional thermal insulation covers 2 that constitute the three-dimensional thermal insulation cover group 200 are folded in sequence and vertically arranged on one side of the paver roof column 1; when the three-dimensional thermal insulation cover group 200 is in use, the several three-dimensional thermal insulation covers 2 that constitute the three-dimensional thermal insulation cover group 200 are unfolded horizontally in sequence and arranged vertically on the paver roof column 1 under the action of their gravity. The three-dimensional thermal insulation cover 2 wrapped on the outside of the hydraulic telescopic ironing plate can insulate the asphalt concrete under construction, and the heating strip 3 on the inner wall of the three-dimensional thermal insulation cover 2 can continuously heat the asphalt concrete under construction, which is conducive to the efficient construction of asphalt concrete.

[0029] The three-dimensional thermal insulation cover group 200 in the utility model can insulate the asphalt concrete under construction, and the heating strip 3 on the inner wall of the three-dimensional thermal insulation cover group 200 can heat the asphalt concrete under construction, specifically preventing heat loss and improving the asphalt concrete paving quality, extending the effective time of the asphalt paver rolling, and improving the road construction quality.

[0030] Each three-dimensional insulation cover 2 in the three-dimensional insulation cover assembly 200 is arc-shaped. When deployed sequentially, the three-dimensional insulation covers 2 can accommodate and cover the different single-side extension lengths of the hydraulic telescopic screed. The three-dimensional insulation covers 2 are made of high-borosilicate hard glass, which offers advantages such as safety, transparency, high-temperature resistance, and excellent insulation. This facilitates observation of the asphalt condition within the hydraulic telescopic screed, ensuring asphalt paving quality.

[0031] The length of each three-dimensional insulation cover 2 is preferably 75 cm, and the length of multiple three-dimensional insulation covers 2 is adapted to the single-sided telescopic length of 1.5 m of the hydraulic telescopic ironing plate; the width of the three-dimensional insulation cover 2 is between 80-90 cm, and the height is between 30-40 cm, which is adapted to the width and height of the paving channel silo. At the same time, the three-dimensional insulation cover 2 adapted to the size of the paving channel silo also improves its insulation effect; the thickness of the three-dimensional insulation cover 2 is preferably 8 mm, which reduces the weight of the three-dimensional insulation cover group 200 and facilitates manual adjustment and deployment of the position of the three-dimensional insulation cover group 200.

[0032] In order to realize the transformation of the three-dimensional thermal insulation cover group 200 from a vertical setting to a horizontal setting, and the three-dimensional thermal insulation cover 2 in the three-dimensional thermal insulation cover group 200 can be unfolded in sequence, the paver roof column 1 and the three-dimensional thermal insulation cover group 200 are connected by a universal joint group 600 and a universal metal hose 7.

[0033] The three-dimensional heat-insulating cover 2 includes a mounting block 21 , which is located on a side of the three-dimensional heat-insulating cover 2 . The mounting block 21 is fixedly connected to the three-dimensional heat-insulating cover 2 by bolts or adhesive.

[0034] At least two universal joint groups 600 are installed on the paver roof column 1, and the universal joint group 600 includes two universal joints 6. One universal joint 6 in the universal joint group 600 is set on the paver roof column 1, and the other universal joint 6 is set on the mounting block 21 of the three-dimensional insulation cover 2.

[0035] The two universal joints 6 in the universal joint assembly 600 are connected via a universal metal hose 7 .

[0036] The length of the universal metal hose 7 at the upper end is greater than the length of the universal metal hose 7 at the lower end.

[0037] The universal joint 6 is a universal joint that realizes variable angle power transmission. The universal metal hose 7 has good bending performance, strength and elasticity. It can be bent and can be stretched to a certain extent in the length direction to adapt to different use environments and needs.

[0038] Specifically, the universal joint 6 in one group of universal joint groups 600 is located at the upper end of the paver roof column 1, and the universal joint 6 in the other group of universal joint groups 600 is located at the lower end of the paver roof column 1. The length of the universal metal hose 7 connected to the universal joint 6 at the upper end of the paver roof column 1 is greater than the length of the universal metal hose 7 connected to the universal joint 6 at the lower end of the paver roof column 1. The longer universal metal hose 7 at the upper end can adapt to the expansion of the three-dimensional thermal insulation cover group 200, and the shorter universal metal hose 7 at the lower end exerts a pulling force on the three-dimensional thermal insulation cover group 200 during the expansion process of the three-dimensional thermal insulation cover group 200, thereby limiting the position of the three-dimensional thermal insulation cover group 200.

[0039] like Figure 3 As shown, in order to adapt to the change of the position of the three-dimensional thermal insulation cover group 200, the position of the universal joint 6 in the universal joint group 600 can be adjusted. The universal joint 6 is threadedly connected to the paver roof column 1 and the three-dimensional thermal insulation cover 2 and is locked by two nuts. That is, the position of the universal joint 6 can be changed when the universal joint 6 is screwed into the paver roof column 1 and the three-dimensional thermal insulation cover 2, and after the position of the universal joint 6 is changed, the universal joint 6 can be locked by two nuts to determine the position of the universal joint 6.

[0040] The two universal joints 6 on the roof column 1 of the paver are located on the same vertical line, which makes it easy to adjust the distance between the two universal joints 6 and thus control the length of the universal metal hose 7.

[0041] Adjacent three-dimensional insulation covers 2 are connected by slide rail slider assemblies 4 symmetrically arranged front and back. The upper three-dimensional insulation cover 2 moves laterally based on the lower three-dimensional insulation cover 2. The distance between adjacent three-dimensional insulation covers 2 is 5 cm.

[0042] Limiting blocks 8 are provided on both sides of the slide rail and slider assembly 4. The limiting blocks 8 are fixedly connected to the slide rails of the slide rail and slider assembly 4 by bolts to prevent the three-dimensional thermal insulation cover 2 from falling out of the slide rail and slider assembly 4 during the sliding process.

[0043] The utility model realizes the direction adjustment of the three-dimensional thermal insulation cover group 200 through the arrangement of the universal joint 6 and the universal metal hose 7, and realizes the horizontal expansion of the three-dimensional thermal insulation cover 2 in the three-dimensional thermal insulation cover group 200 through the slide rail slider assembly 4, so that the three-dimensional thermal insulation cover group 200 can be adapted to the retractable ironing plate to achieve the thermal insulation effect.

[0044] A plurality of heating strips 3 are arranged at equal angles along the inner wall of the three-dimensional heat-insulating cover 2 . The power of each heating strip 3 is preferably 300W, and the thickness of the heating strip 3 is less than 5cm.

[0045] A temperature sensor 5 is provided on the inner wall of the innermost three-dimensional heat-insulating cover 2 of the three-dimensional heat-insulating cover group 200. The temperature sensor 5 is located between the heating strips 3 and the heating strips 3. The temperature sensor 5 is a PT100 sensor, and the thickness of the temperature sensor 5 is less than 5 cm.

[0046] The thickness of the heating strip 3 and the temperature sensor 5 is limited to avoid interference between the heating strip 3 , the temperature sensor 5 and the three-dimensional heat-insulating cover 2 .

[0047] Specifically, each heating strip 3 in the three-dimensional insulation cover 2 is controlled by a separate heating relay. The heating strip 3 is also connected to the asphalt paver's insulation and overload systems to ensure safe operation. A temperature sensor 5 accurately displays the temperature inside the three-dimensional insulation cover 2 in real time, allowing the user to easily turn the heating strip 3 on and off.

[0048] Furthermore, a handle 9 can be provided on the outermost three-dimensional insulation cover 2 of the three-dimensional insulation cover group 200, and a rope passes through the handle 9 to connect the handle 9 to the paver roof column 1, ensuring that several three-dimensional insulation covers 2 of the three-dimensional insulation cover group 200 can be vertically set on one side of the paver roof column 1 after being folded.

[0049] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0050] Although this article makes use of the following terms in the figures: 1. paver roof column, 2. three-dimensional insulation cover, 3. heating strip, 4. slide rail slider assembly, 5. temperature sensor, 6. universal joint, 7. universal metal hose, 8. limit block, 9. handle, 21. mounting block, 200. three-dimensional insulation cover group, 600. universal joint group, etc., it does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A device for heating and insulating the asphalt paving tunnel of a paver, characterized by: The invention comprises a paver roof column (1), wherein a three-dimensional heat-insulating cover group (200) is movably connected to the paver roof column (1), wherein the three-dimensional heat-insulating cover group (200) comprises a plurality of three-dimensional heat-insulating covers (2) that can be sequentially deployed laterally and cover a hydraulically retractable ironing plate, and a heating strip (3) for heating the hydraulically retractable ironing plate is provided on the inner wall of the three-dimensional heat-insulating cover (2).

2. The device for heating and insulating the asphalt paving tunnel of a paver according to claim 1, characterized in that: The three-dimensional heat-insulating cover (2) comprises a mounting block (21), and the mounting block (21) is located on a side surface of the three-dimensional heat-insulating cover (2).

3. The device for heating and insulating the asphalt paving tunnel of a paver according to claim 2, characterized in that: The invention comprises at least two universal joint groups (600), wherein the universal joint group (600) comprises two universal joints (6), one universal joint (6) in the universal joint group (600) is arranged on a roof column (1) of a paver, and the other universal joint (6) is arranged on a mounting block (21) of a three-dimensional thermal insulation cover (2).

4. The device for heating and insulating an asphalt paving tunnel of a paver according to claim 3, characterized in that: The universal joints (6) located on the roof columns (1) of the paver are all located on the same vertical line.

5. The device for heating and insulating the asphalt paving tunnel of a paver according to claim 3, characterized in that: The two universal joints (6) in the universal joint assembly (600) are connected via a universal metal hose (7).

6. The device for heating and insulating the asphalt paving tunnel of a paver according to claim 5, characterized in that: The length of the universal metal hose (7) at the upper end is greater than the length of the universal metal hose (7) at the lower end.

7. The device for heating and insulating an asphalt paving tunnel of a paver according to claim 1, characterized in that: Adjacent three-dimensional thermal insulation covers (2) are connected by slide rail slider assemblies (4) symmetrically arranged front and back. The upper three-dimensional thermal insulation cover (2) moves laterally based on the lower three-dimensional thermal insulation cover (2). The distance between adjacent three-dimensional thermal insulation covers (2) is 5 cm.

8. The device for heating and insulating the asphalt paving tunnel of a paver according to claim 7, characterized in that: Limiting blocks (8) are provided on both sides of the slide rail and slider assembly (4), and the limiting blocks (8) are fixedly connected to the slide rails of the slide rail and slider assembly (4) by bolts.

9. The device for heating and insulating an asphalt paving tunnel of a paver according to claim 1, characterized in that: The plurality of heating strips (3) are arranged at equal angles along the inner wall of the three-dimensional heat-insulating cover (2), and the thickness of the heating strips (3) is less than 5 cm.

10. The device for heating and insulating an asphalt paving tunnel of a paver according to claim 1, characterized in that: The invention comprises a temperature sensor (5), wherein the temperature sensor (5) is located at the inner wall of the innermost three-dimensional thermal insulation cover (2) of the three-dimensional thermal insulation cover group (200), the temperature sensor (5) is located between the heating strips (3) and the heating strips (3), and the thickness of the temperature sensor (5) is less than 5 cm.

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