Oil spray heating system for a tire roller

Abstract

The utility model relates to the field of tire road roller, specifically relates to a kind of oiling heating system for tire road roller.The oiling heating system for tire road roller includes: engine air pump;Reversing valve has with the air inlet of engine air pump, first exhaust port and second exhaust port;First exhaust port and second exhaust port are configured to be selectively opened;Vegetable oil tank is arranged with radiator in vegetable oil tank, and radiator is communicated with first exhaust port;Temperature switch is arranged in vegetable oil tank with the linkage of reversing valve;Shuttle valve is communicated with radiator and second exhaust port;Air reservoir is communicated with shuttle valve.The utility model relates to the oiling heating system for tire road roller, and high-temperature gas when engine works is heated to vegetable oil liquid, without increasing other heat source, and radiator can pass gas heat to vegetable oil liquid, heating is even, and heating efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of tire rollers, and more specifically to an oil spraying and heating system for tire rollers. Background Technology

[0002] When using a pneumatic tire roller for asphalt compaction, asphalt often adheres to the tire surface, affecting the compaction effect. Currently, it is common practice to equip pneumatic tire rollers with an oil spraying system. Oil spraying generally allows the application of vegetable oil to the tire surface, forming an oil film between the tire and the asphalt to prevent adhesion. However, when the ambient temperature for asphalt paving is low, generally below 5°C or slightly higher, vegetable oil is prone to crystallization, resulting in high viscosity and making spraying difficult. Therefore, in low-temperature construction environments, the vegetable oil needs to be heated. However, the heating temperature should not be too high; above 40°C, it is highly susceptible to oxidation, and the heating temperature must be controlled.

[0003] Heating the oil in the oil spraying system plays a crucial role, allowing the vegetable oil to operate within the temperature range of 5℃-40℃ without crystallization. Currently, there are various heating methods on the market, with electric heating being the most common. This method requires increasing the generator power to meet the actual heating current, and also increases the engine power load. There are also cases on the market where antifreeze is used to heat the vegetable oil, which increases the amount of antifreeze used in the system and also increases the pump delivery load.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] To improve or solve the technical problem that existing oil spraying and heating systems increase engine power load or antifreeze consumption, this utility model provides an oil spraying and heating system for a tire roller. The oil spraying and heating system for the tire roller includes: an engine air pump; a reversing valve having an air inlet, a first exhaust port, and a second exhaust port connected to the engine air pump; the first exhaust port and the second exhaust port are configured to be selectively openable; a vegetable oil tank, in which a radiator is arranged, and the radiator is connected to the first exhaust port; a temperature switch linked to the reversing valve is arranged in the vegetable oil tank; a shuttle valve connected to the radiator and the second exhaust port; and an air reservoir connected to the shuttle valve.

[0006] The oil-spraying and heating system for a tire roller of this invention includes an engine air pump, a reversing valve, a vegetable oil tank, a radiator, a shuttle valve, and an air reservoir. The engine air pump delivers the high-temperature gas generated during engine operation to the reversing valve. The reversing valve has an inlet, a first exhaust port, and a second exhaust port. The high-temperature gas is delivered to the air reservoir via the first exhaust port, the radiator, and the shuttle valve. The radiator is located inside the vegetable oil tank and heats the vegetable oil solution within. After the vegetable oil solution reaches a predetermined temperature, the high-temperature gas is delivered to the air reservoir via the second exhaust port and the shuttle valve, with the two pathways operating independently. A temperature switch detects the temperature of the vegetable oil solution in the tank, facilitating control of the reversing valve. Through this design, the oil-spraying and heating system for a tire roller of this invention heats the vegetable oil solution using the high-temperature gas generated during engine operation, eliminating the need for additional heat sources. Furthermore, the radiator effectively transfers the heat from the gas to the vegetable oil solution, resulting in uniform heating and high heating efficiency.

[0007] Furthermore, a one-way valve is provided between the radiator and the shuttle valve.

[0008] Furthermore, the reversing valve has a third exhaust port communicating with the first exhaust port, the third exhaust port being configured to discharge gas from the radiator.

[0009] Furthermore, the reversing valve is connected to a relay, and the temperature switch is connected to the relay.

[0010] Furthermore, a circuit switch is provided between the temperature switch and the relay.

[0011] Furthermore, an oil-water separator is provided between the engine air pump and the reversing valve.

[0012] Furthermore, the heat sink is made of stainless steel.

[0013] In summary, compared with the prior art, this utility model has the following beneficial effects: (1) The vegetable oil is heated by the high-temperature gas when the engine is working, without the need to add other heat sources, and the radiator can transfer the heat of the gas to the vegetable oil, resulting in uniform heating and high heating efficiency. (2) The temperature switch can control the operation of the reversing valve to keep the temperature of the vegetable oil liquid within the set preset range; (3) The one-way valve can prevent high-temperature gas from flowing back into the radiator, and the shuttle valve can separate the two gas paths so that the two gas paths do not interfere with each other. Attached Figure Description

[0014] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1This is a schematic diagram of an embodiment of the oil spraying and heating system for a tire roller according to the present invention; Figure 2 This is a schematic diagram of an embodiment of the reversing valve in the oil spraying and heating system of a tire roller according to this utility model; Figure 3 This is a schematic diagram of an embodiment of the temperature switch used in the oil spraying and heating system of a tire roller according to the present invention; Figure 4 This is a schematic diagram of an embodiment of the vegetable oil tank in the oil spraying and heating system of a tire roller according to the present invention.

[0015] List of reference numerals in the attached diagram: 1. Engine air pump; 2. Oil-water separator valve; 3. Directional control valve; 4. Vegetable oil tank; 5. Radiator; 6. Check valve; 7. Shuttle valve; 8. Air reservoir; 9. Temperature switch; 10. Circuit switch; 11. Relay. Detailed Implementation

[0016] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] To improve or solve the technical problem that existing oil spraying and heating systems increase engine power load or antifreeze consumption, this utility model provides an oil spraying and heating system for a tire roller. This oil spraying and heating system for a tire roller includes: an engine air pump 1; a reversing valve 3 having an air inlet connected to the engine air pump 1, a first exhaust port, and a second exhaust port; the first and second exhaust ports are configured to be selectively openable; a vegetable oil tank 4, in which a radiator 5 is arranged and connected to the first exhaust port; a temperature switch 9 linked to the reversing valve 3 is arranged in the vegetable oil tank 4; a shuttle valve 7 connected to the radiator 5 and the second exhaust port; and an air reservoir 8 connected to the shuttle valve 7.

[0020] Figure 1 This is a schematic diagram of an embodiment of the oil spraying and heating system for a tire roller according to this utility model. Figure 1 As shown, the oil spraying and heating system for a tire roller of this utility model includes an engine air pump 1, a reversing valve 3, a vegetable oil tank 4, a radiator 5, a temperature switch 9, a shuttle valve 7, and an air storage cylinder 8.

[0021] Figure 2 This is a schematic diagram of an embodiment of the reversing valve used in the oil spraying and heating system of a tire roller according to this utility model. Figure 1 and Figure 2 As shown, the engine air pump 1 is driven by a belt via the engine crankshaft, compressing high-temperature air and storing it in the air reservoir 8. In one or more embodiments, the reversing valve 3 is a two-position five-way valve. The reversing valve 3 has an inlet port P, a first exhaust port A, and a second exhaust port B. The inlet port P is connected to the engine air pump 1 to allow high-temperature gas to enter the reversing valve 3. The radiator 5 is connected to the first exhaust port A, and the shuttle valve 7 is connected to the second exhaust port B. Further, the reversing valve 3 also has a third exhaust port R connected to the first exhaust port A for discharging gas from the radiator 5. Exemplarily, the reversing valve 3 also has a fourth port, which is blocked.

[0022] Figure 3 This is a schematic diagram of an embodiment of the temperature switch used in the oil spraying and heating system of a tire roller according to this utility model. Figure 1 , Figure 2 and Figure 3As shown, temperature switch 9 is installed on vegetable oil tank 4 and connected to relay 11. Relay 11 is connected to reversing valve 3 and is used to control the opening and closing of each exhaust port on reversing valve 3. Specifically, a circuit switch 10 is provided between relay 11 and temperature switch 9. Relay 11 is connected to a power source. Temperature switch 9 monitors the temperature of vegetable oil in vegetable oil tank 4. When the temperature is lower than the set value, temperature switch 9 controls reversing valve 3 to operate via relay 11. High-temperature gas enters radiator 5 in vegetable oil tank 4 through first exhaust port A. Radiator 5 evenly exchanges the heat of high-temperature gas with vegetable oil and then enters air storage tank 8 through shuttle valve 7. When the temperature reaches the set value, high-temperature gas enters air storage tank 8 directly through shuttle valve 7 through second exhaust port B. At this time, the gas in radiator 5 is discharged through third exhaust port. Alternatively, temperature switch 9 can also be used in conjunction with a temperature sensor and controller to achieve closed-loop control. Furthermore, an oil-water separator valve 2 is provided between engine air pump 1 and reversing valve 3 for oil-water separation.

[0023] Figure 4 This is a schematic diagram of an embodiment of the vegetable oil tank in the oil spraying and heating system of a tire roller according to this utility model. Figure 1 and Figure 4 As shown, the radiator 5 is embedded in the bottom of the vegetable oil tank 4. Considering the corrosiveness of materials such as aluminum in vegetable oil, stainless steel is selected for the radiator 5, which has good corrosion resistance, temperature resistance, and pressure resistance. Heating is initiated after the engine coolant temperature has risen. The radiator 5 is buried at the bottom of the vegetable oil tank 4, in contact with the vegetable oil liquid inside on all four sides. When high-temperature gas passes through, it evenly transfers heat to the surrounding vegetable oil liquid, ensuring uniform heating. It is understood that the radiator 5 can be suspended inside the vegetable oil tank 4 using a bracket. Alternatively, the radiator 5 can be replaced with other suitable heat exchange devices, or an airflow channel can be provided at the bottom of the vegetable oil tank 4 to heat the vegetable oil liquid.

[0024] See also Figure 1 In one or more embodiments, a one-way valve 6 is provided between the shuttle valve 7 and the radiator 5 to prevent the backflow of high-temperature gas. The shuttle valve 7 has two air inlets and one air outlet. The two air inlets are respectively connected to the one-way valve 6 and the second exhaust port B of the reversing valve 3, and the air outlet is connected to the air storage tank 8.

[0025] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A fuel spraying and heating system for a tire roller, characterized in that, include: Engine air pump (1); The reversing valve (3) has an air inlet, a first exhaust port and a second exhaust port connected to the engine air pump (1); the first exhaust port and the second exhaust port are configured to be selectively openable. A vegetable oil tank (4) is provided with a radiator (5) and the radiator (5) is connected to the first exhaust port; a temperature switch (9) is provided in the vegetable oil tank (4) and is linked to the reversing valve (3); A shuttle valve (7) is connected to the radiator (5) and the second exhaust port; The gas storage cylinder (8) is connected to the shuttle valve (7).

2. The oil spraying and heating system for a tire roller according to claim 1, characterized in that, A one-way valve (6) is provided between the radiator (5) and the shuttle valve (7).

3. The oil spraying and heating system for a tire roller according to claim 1, characterized in that, The reversing valve (3) has a third exhaust port that communicates with the first exhaust port, the third exhaust port being configured to discharge gas from the radiator (5).

4. The oil spraying and heating system for a tire roller according to claim 1, characterized in that, The reversing valve (3) is connected to a relay (11), and the temperature switch (9) is connected to the relay (11).

5. The oil spraying and heating system for a tire roller according to claim 4, characterized in that, A circuit switch (10) is provided between the temperature switch (9) and the relay (11).

6. The oil spraying and heating system for a tire roller according to claim 1, characterized in that, An oil-water separator (2) is provided between the engine air pump (1) and the reversing valve (3).

7. The oil spraying and heating system for a tire roller according to claim 1, characterized in that, The heat sink (5) is made of stainless steel.

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