Ironing plate heating device of asphalt paver

Abstract

The utility model provides an asphalt paver ironing plate heating device which comprises a plate body arranged on one side of an asphalt paver, a heating cavity is formed in the plate body, a gas conveying main pipe is arranged at one end of the plate body in the width direction in the length direction of the plate body, a plurality of gas conveying branch pipes are connected to the gas conveying main pipe in the length direction of the gas conveying main pipe, and the gas conveying branch pipes are communicated with the heating cavity. A plurality of through holes which correspond to the gas conveying branch pipes and are communicated with the heating cavity are formed in the end, close to the gas conveying main pipe, of the plate body in the length direction of the plate body, and the gas conveying branch pipes penetrate through the corresponding through holes. An air inlet communicated with the heating cavity is formed in the position, close to the air conveying main pipe, of the top of the plate body, an air vent communicated with the heating cavity is formed in the position, away from the air conveying main pipe, of the top of the plate body, and a fan is arranged at the air inlet. The heating cavity is arranged in the ironing plate, and fuel gas is conveyed into the heating cavity through the gas conveying branch pipes, so that the interior of the heating cavity is uniformly heated, the heating effect in the ironing plate is improved, the fuel heat loss is low, and the utilization rate is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway maintenance equipment and relates to a heating device for an asphalt paver ironing board. Background Art

[0002] In paver equipment, the screed is the main component of the paver, which realizes the shaping, leveling and preliminary compaction of the paved road surface. Therefore, the rational use of the screed device is particularly important, and its working performance plays a very important role in the construction quality. During operation, the screed plate needs to be heated at its contact surface with the road surface so that the temperature of the screed plate and the asphalt are close to each other. This prevents the asphalt from sticking to the screed plate due to a large temperature difference with the asphalt during screeding, thereby affecting the construction effect. Currently, there are three main methods for heating screed plates: gas, oil, and electric heating. Gas heating is fast and low-cost. That is, gas is ignited and the screed plate is heated by a flame. In this method, part of the heat generated by the gas combustion is dissipated into the surrounding air, resulting in a large amount of heat waste and reducing fuel utilization. Currently, the existing utility model patent with patent number 2015211042582 discloses a "screed plate heating device". The screed plate is provided with a screed plate heating chamber on the upper surface of the screed plate. Flame is sprayed into the screed plate heating chamber through a flame spray pipe to heat the screed plate. Although this method can improve the utilization rate of gas, the screed plate heating chamber is a sealed structure with gaps, which makes the air flow effect poor, resulting in insufficient combustion of the fuel, affecting the heating effect, and even causing flameout due to lack of oxygen. Utility Model Content

[0003] The purpose of the utility model is to solve the problem of poor combustion effect of the existing heating device in the background technology, and to provide an asphalt paver ironing board heating device.

[0004] To this end, the present invention adopts the following technical solutions:

[0005] A heating device for an asphalt paver screed plate comprises a plate body arranged on one side of the asphalt paver, a heating chamber being formed inside the plate body, a gas main pipe being provided at one end in the width direction along the length direction of the plate body, a plurality of gas branch pipes being connected to the gas main pipe along the length direction of the gas main pipe, a plurality of through holes corresponding to the gas branch pipes and connected to the heating chamber are provided at one end of the plate body close to the gas main pipe along the length direction of the plate body, the gas branch pipes pass through the corresponding through holes, an air inlet pipe is provided on one side of the gas main pipe, a plurality of air inlet branch pipes corresponding to the through holes are connected to the air inlet pipe along the length direction of the air inlet pipe, the air inlet branch pipes pass through the corresponding through holes, the air inlet main pipe is connected to a fan, and an exhaust hole connected to the heating chamber is provided on the side of the plate body away from the air inlet pipe.

[0006] Furthermore, a plurality of heat-conducting fins are provided on the lower surface of the heating chamber, and the heat-conducting fins are arranged along the width direction of the heating chamber.

[0007] Furthermore, an ignition hole communicating with the heating chamber is provided on the top of the plate body near the gas transmission main pipe, and an electronic igniter is provided at the ignition hole.

[0008] Furthermore, a bracket is provided on the plate body, and the gas main pipe and the fan are installed on the bracket.

[0009] Furthermore, the lower surface of the plate body forms an ironing surface.

[0010] Furthermore, the ironing surface is a rectangular structure.

[0011] Furthermore, the gas main pipe is connected to a gas cylinder, and the gas cylinder is installed on the asphalt paver.

[0012] Furthermore, a gas delivery valve is provided on the gas delivery main pipe.

[0013] The beneficial effects of the utility model are as follows: a heating chamber is provided inside the ironing plate, and gas is transported into the heating chamber through a plurality of gas transmission branches so as to evenly heat the interior of the heating chamber, thereby improving the heating effect inside the ironing plate, reducing fuel heat loss and increasing utilization rate; air inlet holes and air vents are provided, and air is sent into the heating chamber through a fan, so that the gas is fully burned, further improving the heating effect, and preventing flameout due to lack of oxygen during the heating process; a plurality of heat-conducting fins are provided in the heating chamber, thereby further improving the heat conduction speed of the ironing plate; the structure is simple and the method of use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic front view of the structure of the present invention;

[0015] Figure 2 is a schematic side view of the structure of the present invention;

[0016] Figure 3 for Figure 1 A partial enlarged view of part A in the middle;

[0017] Figure 4 for Figure 1 A partial enlarged view of part B in the middle;

[0018] In the figure, 1- asphalt paver, 2- plate body, 3- ironing surface, 4- heating chamber, 5- gas main pipe, 6- gas branch pipe, 7- through hole, 8- gas cylinder, 9- gas valve, 10- air inlet main pipe, 11- air inlet branch pipe, 12- fan, 13- heat transfer fin, 14- ignition hole, 15- electronic igniter, 16- bracket, 17- exhaust hole. DETAILED DESCRIPTION

[0019] The utility model is described in detail below with reference to the accompanying drawings:

[0020] like Figure 1-4The asphalt paver screed heating device includes a plate body 2 arranged on one side of the asphalt paver 1. The asphalt paver 1 is an existing conventional asphalt paver. The plate body 2 is a rectangular structure. The lower surface of the plate body 2 forms a rectangular ironing surface 3, and the asphalt on the road surface can be ironed flat by the ironing surface 3. The plate body 2 is installed on one side of the asphalt paver 1 in an existing conventional manner. A heating chamber 4 is formed inside the plate body 2, and the plate body 2 can be heated inside the plate body 2 by the heating chamber 4. A gas main pipe 5 is provided at one end of the plate body 1 in the width direction along the length direction of the plate body 1. The gas main pipe 5 is used to transport gas so that the plate body 2 can be heated by gas combustion. A plurality of gas branch pipes 6 are connected to the gas main pipe 5 along the length direction of the gas main pipe 5. The plate body 1 is provided with a plurality of through holes 7 along the length direction of the plate body 1 at one end close to the gas main pipe 5, which corresponds to the gas branch pipe 6 and is connected to the heating chamber 4. The gas branch pipe 6 passes through the corresponding through holes 7. The gas can be uniformly input to various positions in the heating chamber 4 through the gas branch pipe 6, thereby uniformly heating the plate body 2. The gas main pipe 5 is connected to a gas cylinder 8 for storing gas. The gas cylinder 8 can be an existing conventional gas cylinder. The gas cylinder 8 is installed on the asphalt paver 1. The gas main pipe 5 is also provided with a gas valve 9. The gas delivery and gas flow rate can be controlled by the gas valve 9. When the gas is burned in the heating chamber 4, in order to ensure that the gas is fully burned, improve the heating effect and save gas, one side of the gas main pipe (5) is provided with a The air inlet main pipe 10 is provided with a plurality of air inlet branch pipes 11 corresponding to the through holes 7 along the length direction of the air inlet main pipe 10. The air inlet branch pipes 11 pass through the corresponding through holes 7. The air inlet main pipe 10 is connected to a fan 12, and air is supplied from the air inlet branch pipe 11 to the heating chamber 4 through the fan 12, so that the gas in the heating chamber 4 is fully burned, ensuring the heating effect of the plate body 1, and preventing the lack of air in the heating chamber 4 from causing flameout. In addition, in order to prevent the air pressure in the heating chamber 4 from being too high, an exhaust hole 17 connected to the heating chamber 4 is provided on the side of the plate body 1 away from the air inlet main pipe 10, and an exhaust hole 17 connected to the heating chamber 4 is provided at one end of the length direction of the plate body 1. The air inlet 10 is connected to the heating chamber 4, and the other end is provided with an air vent 11 connected to the heating chamber 4. A fan 12 is provided at the air inlet 10, and air is supplied from the air inlet 10 to the heating chamber 4 through the fan 12, so that the gas in the heating chamber 4 can be fully burned, ensuring the heating effect of the plate body 1. At the same time, it can also prevent the heating chamber 4 from lacking air and causing flameout. The exhaust hole 17 can prevent the air pressure in the heating chamber 4 from being too high. In order to further improve the heating effect, a plurality of heat-conducting fins 13 are provided on the lower surface of the heating chamber 4. The heat-conducting fins 13 are arranged along the width direction of the heating chamber 4. When the gas burns in the heating chamber 4, the heat-conducting fins 13 can absorb heat and transfer the heat to the ironing surface 3 at the bottom of the plate body 2, quickly increasing the temperature of the ironing surface 3.

[0021] An ignition hole 14 connected to the heating chamber 4 is provided on the top of the plate body 2 near the gas main pipe 5. An electronic igniter 15 is provided at the ignition hole 14. After the gas is input into the heating chamber 4, the gas in the heating chamber 4 can be ignited by the electronic igniter 15. In order to facilitate the installation and fixation of the gas main pipe 5 and the fan 12, a bracket 16 is provided on the plate body 2, and the gas main pipe 5 and the fan 12 are installed on the bracket 16.

[0022] The usage of this utility model is as follows:

[0023] When the asphalt paver 1 is performing asphalt paving operation, the gas supply valve 9 is first opened to input the gas in the gas cylinder 8 into the multiple gas supply branches 6 through the gas supply main pipe 5, and then the gas is transported to the heating chamber 4 through the gas supply branch pipes 6 and evenly distributed in the heating chamber 4. Then, the gas in the heating chamber 4 can be ignited by the electronic igniter 15. After ignition, the multiple gas supply branches 6 can spray fire into the heating chamber 4. After ignition, the fan 12 can be started to supply air to various positions in the heating chamber 4 through the air inlet main pipe 10 and the air inlet branch pipe 11, so that the heating chamber The gas in 4 is fully in contact with the air, which improves the combustion effect and effectively prevents flameout. The gas burns in the heating chamber 4 to heat the plate body 2 and increase the temperature of the plate body 2. During heating, the heat-conducting fins 13 in the heating chamber 4 can also quickly transfer heat to the ironing surface 3 at the bottom of the plate body 2, further improving the heating speed. When the temperature of the ironing surface 3 of the plate body 2 reaches the set temperature, the asphalt paver 1 can perform asphalt paving and ironing operations. When the use is completed, the gas in the heating chamber 4 can be extinguished by simply closing the gas valve 9.

Claims

1. An asphalt paver screed heating device, characterized in that: The invention comprises a plate body (2) arranged on one side of an asphalt paver, wherein a heating chamber (4) is formed inside the plate body (2), a gas supply main pipe (5) is provided at one end in the width direction of the plate body (2) along the length direction of the plate body (2), a plurality of gas supply branch pipes (6) are connected to the gas supply main pipe (5) along the length direction of the gas supply main pipe (5), and a plurality of through holes (7) corresponding to the gas supply branch pipes (6) and connected to the heating chamber (4) are provided at one end of the plate body (2) close to the gas supply main pipe (5) along the length direction of the plate body (2), The branch pipe (6) passes through the corresponding through hole (7). An air inlet pipe (10) is provided on one side of the gas supply pipe (5). A plurality of air inlet branch pipes (11) corresponding to the through holes (7) are connected to the air inlet pipe (10) along the length direction of the air inlet pipe (10). The air inlet branch pipes (11) pass through the corresponding through holes (7). The air inlet pipe (10) is connected to a fan (12). An exhaust hole (17) connected to the heating chamber (4) is provided on the side of the plate body (2) away from the air inlet pipe (10).

2. The asphalt paver screed heating device according to claim 1, characterized in that: A plurality of heat-conducting fins (13) are provided on the lower surface of the heating cavity (4), and the heat-conducting fins (13) are arranged along the width direction of the heating cavity (4).

3. The asphalt paver screed heating device according to claim 1, characterized in that: An ignition hole (14) communicating with the heating chamber (4) is provided on the top of the plate body (2) near the gas transmission main pipe (5), and an electronic igniter (15) is provided at the ignition hole (14).

4. The asphalt paver screed heating device according to claim 1, characterized in that: A bracket (16) is provided on the plate body (2), and the gas transmission main pipe (5), the air inlet branch pipe (11) and the fan (12) are installed on the bracket (16).

5. The asphalt paver screed heating device according to claim 1, characterized in that: The lower surface of the plate body (2) forms an ironing surface (3).

6. The asphalt paver screed heating device according to claim 5, characterized in that: The ironing surface (3) is a rectangular structure.

7. The asphalt paver screed heating device according to claim 1, characterized in that: The gas supply main (5) is connected to a gas cylinder (8), and the gas cylinder (8) is installed on the asphalt paver (1).

8. The asphalt paver screed heating device according to claim 1, characterized in that: The gas transmission main pipe (5) is provided with a gas transmission valve (9).

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