Power auxiliary device of farming machine

By designing a power assist device on the agricultural tiller, the waste heat of the engine is converted into steam power, which solves the problem of waste heat emission of traditional agricultural tillers and achieves efficient energy utilization and environmental protection.

CN121654503APending Publication Date: 2026-03-13鲍光迎
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The direct emission of waste heat generated by traditional internal combustion engines in agricultural machinery leads to energy waste and thermal pollution. Existing waste heat recovery devices are complex in structure and difficult to adapt to different models of agricultural machinery.

Method used

Design a power auxiliary device for agricultural tillers. It uses the high-temperature flame of the engine to heat water to generate steam. The waste heat is converted into power through the pipe body mechanism and water vapor separation device. High-temperature resistant metal materials and insulation layer are used to improve heat exchange efficiency. It is suitable for various models of agricultural tillers.

Benefits of technology

It achieves efficient conversion of waste heat into clean steam power, reduces environmental thermal pollution, has a simple structure, wide applicability, and meets the needs of green agriculture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a power auxiliary device of a farming machine. The power auxiliary device comprises a box body, a flame inlet, a flame outlet and a pipe body mechanism, one end of the box body is provided with the flame inlet, and the other end of the box body is provided with the flame outlet; the device is mounted near an engine of a farming machine. Flame generated by working of an engine enters the pipe body mechanism through the flame inlet 1, water in the pipe body is heated by the flame in the moving process, and high-pressure and high-temperature water vapor is generated. The steam enters the gas storage tank after being treated by the water-steam separation small tank, and finally drives the pneumatic motor to operate to provide power assistance for the farming machine. The partition plate 6 can effectively control the flame trend and improve the heat utilization rate and the heating efficiency, so that the power performance of the whole machine is enhanced, the machine is more suitable for complex terrains and heavy work, and the agricultural production efficiency is improved. Waste heat generated by the engine is used for heat energy conversion, extra energy supply is not needed, efficient utilization of energy is achieved, and heat pollution to the environment is reduced by reducing emission of the waste heat of the engine.
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Description

Technical Field

[0001] This invention relates to the field of agricultural machinery power assistance technology, and in particular to a power assistance device for a farming machine. Background Technology

[0002] Currently, in the field of agricultural machinery power assistance, traditional internal combustion engines generate a large amount of waste heat during operation. This heat is usually discharged directly into the environment in the form of exhaust gas or coolant, which not only wastes energy but also exacerbates thermal pollution. Although some waste heat recovery devices exist in existing technologies, most are complex in structure, inconvenient to install, and difficult to adapt to different models of agricultural machinery, thus limiting their practical application. Summary of the Invention

[0003] In view of this, in order to solve the problems existing in the technical background, the present invention proposes a power assistance device for agricultural tillers. Specifically, it includes the following:

[0004] A power auxiliary device for an agricultural tiller includes a housing, a flame inlet, a flame outlet, and a pipe mechanism; the flame inlet is provided at one end of the housing, and the flame outlet is provided at the other end.

[0005] The flame inlet is used to connect to the high-temperature flame generated by the engine, and the flame outlet is used to discharge the exhaust gas after heat exchange. The pipe body mechanism is set inside the housing and includes two parallel main pipes and nine auxiliary pipes. The main pipes are provided with multiple auxiliary pipe connection positions, and the two ends of the auxiliary pipes are welded to the two main pipes respectively, so that the internal space of the main pipes and the auxiliary pipes is connected. Water is filled inside the main pipes and the auxiliary pipes. When the high-temperature flame flows through the pipe body mechanism, it heats the water and generates water vapor. The water vapor enters the gas storage tank through the water vapor separation device and is finally delivered to the pneumatic motor to provide auxiliary power for the agricultural machine.

[0006] Furthermore, the nine secondary pipes are arranged in groups of three to form three secondary pipe groups, and a partition plate is provided between adjacent secondary pipe groups. The partition plate is used to guide the flame to flow along a preset path from the flame inlet to the flame outlet, thereby improving the heat exchange efficiency.

[0007] Furthermore, the main and auxiliary pipes in the pipe structure are both made of high-temperature and high-pressure resistant metal materials, and their interiors form a closed water circulation and steam generation channel.

[0008] Furthermore, the water vapor separation device includes a small tank disposed between the pipe structure and the gas storage tank, for separating and collecting liquid water in water vapor to improve the dryness of the steam.

[0009] Furthermore, the flame inlet and flame outlet are respectively provided with flange connection structures for sealing connection with the engine exhaust pipe and subsequent exhaust pipe.

[0010] Furthermore, the outer surface of the enclosure is covered with an insulation layer to reduce heat loss and improve heat recovery efficiency.

[0011] Furthermore, the outlet of the gas storage tank is equipped with a pressure regulating valve and a steam control valve, which are used to stabilize the output steam pressure and control the on / off of the steam supply to the pneumatic motor.

[0012] Furthermore, the output shaft of the pneumatic motor is connected to the power input shaft of the agricultural machine through a transmission mechanism to achieve auxiliary power transmission.

[0013] The above technical solution has the following beneficial effects:

[0014] This invention utilizes waste heat generated by an engine for thermal energy conversion, eliminating the need for additional energy supply and achieving highly efficient energy utilization. By reducing engine waste heat emissions, it lowers thermal pollution to the environment. Water vapor, as a clean energy source, reduces carbon emissions. Its simple and compact structure makes it suitable for various types of agricultural machinery, possessing broad market prospects and application potential. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of a power auxiliary device for a farming machine according to the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of a power auxiliary device for a farming machine according to the present invention.

[0017] Figure 3 This is a schematic diagram of the main pipe of a power auxiliary device for an agricultural tiller according to the present invention.

[0018] In the diagram: 1-Flame inlet; 2-Box body; 3-Flame outlet; 4-Main pipe; 5-Secondary pipe; 6-Baffle plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] See Figure 1-3The power auxiliary device of an agricultural tiller shown includes a housing 2, a flame inlet 1, a flame outlet 3, and a pipe mechanism; the housing 2 has the flame inlet 1 at one end and the flame outlet 3 at the other end;

[0021] The flame inlet 1 is used to connect to the high-temperature flame generated by the engine, and the flame outlet 3 is used to discharge the exhaust gas after heat exchange. The pipe body mechanism is set inside the housing 2, including two parallel main pipes 4 and nine auxiliary pipes 5. The main pipes 4 are provided with multiple auxiliary pipe 5 connection positions. The two ends of the auxiliary pipes 5 are welded to the two main pipes 4 respectively, so that the internal space of the main pipes 4 and the auxiliary pipes 5 are connected. The main pipes 4 and the auxiliary pipes 5 are filled with water. When the high-temperature flame flows through the pipe body mechanism, it heats the water and generates water vapor. The water vapor enters the gas storage tank through the water vapor separation device and is finally delivered to the pneumatic motor to provide auxiliary power for the agricultural machine.

[0022] The nine secondary pipes 5 are arranged in groups of three to form three secondary pipe groups 5. A partition plate 6 is provided between adjacent secondary pipe groups 5. The partition plate 6 is used to guide the flame to flow along a preset path from the flame inlet 1 to the flame outlet 3, thereby improving the heat exchange efficiency.

[0023] The main pipe 4 and auxiliary pipe 5 in the pipe body structure are both made of high-temperature and high-pressure resistant metal materials, and their interiors form a closed water circulation and steam generation channel. The water vapor separation device includes a small tank, which is set between the pipe body structure and the gas storage tank, and is used to separate and collect liquid water in the water vapor to improve the steam dryness. The flame inlet 1 and flame outlet 3 are respectively provided with flange connection structures for sealing connection with the engine exhaust pipe and subsequent exhaust pipe. The outer surface of the box 2 is covered with a heat insulation layer to reduce heat loss and improve heat recovery efficiency. The outlet of the gas storage tank is provided with a pressure regulating valve and a steam control valve to stabilize the output steam pressure and control the steam supply to the pneumatic motor. The output shaft of the pneumatic motor is connected to the power input shaft of the agricultural machine through a transmission mechanism to realize auxiliary power transmission.

[0024] This invention rationally utilizes the high-temperature flames emitted by an engine, converting them into high-pressure steam that can be used for power assistance. No additional energy input is required; energy conversion relies solely on the waste heat generated by the engine itself, significantly improving energy efficiency. By recovering waste heat and converting it into clean steam power, it reduces thermal pollution and carbon emissions, aligning with the development needs of green agriculture.

[0025] In practical applications, this device is installed near the engine of the agricultural tiller. The flame generated by the engine enters the pipe mechanism through flame inlet 1. As the flame moves, it heats the water inside the pipe, producing high-pressure, high-temperature steam. The steam is then processed by a water-vapor separator before entering the storage tank, ultimately driving the pneumatic motor to provide power assistance to the agricultural tiller. The partition plate 6 effectively controls the flame direction, improving heat utilization and heating efficiency, thereby enhancing the overall power performance of the machine, making it more adaptable to complex terrain and heavy workloads, and improving agricultural production efficiency.

[0026] This invention is based on the principle of thermal energy conversion, transforming engine waste heat into mechanical energy to achieve power assistance. Its main functions include three stages: flame intake and heating, steam generation and storage, and power assistance. After the flame is drawn in, it heats the water inside the tube, generating steam, which, after separation and storage, drives the pneumatic motor.

[0027] The basic principles and main features of the present invention have been described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from the spirit and scope of the present invention. All such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the invention is defined by the appended claims and their equivalents.

Claims

1. A power auxiliary device for an agricultural tiller, characterized in that, It includes a housing (2), a flame inlet (1), a flame outlet (3), and a tube structure; the housing (2) has the flame inlet (1) at one end and the flame outlet (3) at the other end. The flame inlet (1) is used to connect to the high-temperature flame generated by the engine, and the flame outlet (3) is used to discharge the exhaust gas after heat exchange. The pipe body mechanism is set inside the box (2) and includes two parallel main pipes (4) and nine auxiliary pipes (5). The main pipes (4) are provided with multiple auxiliary pipe connection positions. The two ends of the auxiliary pipes (5) are welded to the two main pipes (4) respectively, so that the internal space of the main pipes (4) and the auxiliary pipes (5) are connected. Water is filled inside the main pipes (4) and the auxiliary pipes (5). When the high-temperature flame flows through the pipe body mechanism, it heats the water and generates water vapor. The water vapor enters the gas storage tank through the water vapor separation device and is finally delivered to the pneumatic motor to provide auxiliary power for the agricultural machine.

2. The power auxiliary device for a farming machine according to claim 1, characterized in that, The nine secondary pipes (5) are arranged in groups of three to form three secondary pipe groups. A partition plate (6) is provided between adjacent secondary pipe groups. The partition plate (6) is used to guide the flame to flow along a preset path from the flame inlet (1) to the flame outlet (3) to improve the heat exchange efficiency.

3. The power auxiliary device for a farming machine according to claim 1, characterized in that, The main pipe (4) and the secondary pipe (5) in the pipe body structure are both made of high temperature and high pressure resistant metal materials, and their interiors form a closed water circulation and steam generation channel.

4. The power auxiliary device for a farming machine according to claim 1, characterized in that, The water vapor separation device includes a small tank, which is located between the pipe structure and the gas storage tank, and is used to separate and collect liquid water in water vapor to improve the dryness of the steam.

5. The power auxiliary device for a farming machine according to claim 1, characterized in that, The flame inlet (1) and flame outlet (3) are respectively provided with flange connection structures for sealing connection with the engine exhaust pipe and subsequent exhaust pipe.

6. The power auxiliary device for a farming machine according to claim 1, characterized in that, The outer casing (2) is covered with an insulation layer to reduce heat loss and improve heat recovery efficiency.

7. The power auxiliary device for a tiller according to claim 1, characterized in that, The outlet of the gas storage tank is equipped with a pressure regulating valve and a steam control valve, which are used to stabilize the output steam pressure and control the on / off of the steam supply to the pneumatic motor.

8. The power auxiliary device for a farming machine according to claim 1, characterized in that, The output shaft of the pneumatic motor is connected to the power input shaft of the agricultural machine through a transmission mechanism to achieve auxiliary power transmission.