Hydraulic control reversible cooling fan mechanism for corn harvester

Abstract

The utility model discloses a hydraulic control reversible cooling fan mechanism for a corn harvester, which comprises a hydraulic system, the hydraulic system is composed of a hydraulic oil tank, a hydraulic oil pump, a hydraulic control valve, a hydraulic motor and a plurality of oil pipes, the hydraulic oil pump is provided with an oil suction port and an oil pressing port, the oil suction port is communicated and fixed with the hydraulic oil tank through an oil pipe, the oil pressing port is communicated and fixed with an oil inlet of the hydraulic control valve through an oil pipe, and a working oil port of the hydraulic control valve is communicated and fixed with the hydraulic motor through an oil pipe. An oil return opening of the hydraulic control valve is communicated and fixed with the hydraulic oil tank through an oil pipe, a power output shaft of the hydraulic motor is connected with the cooling fan assembly through a spline shaft in a bearing seat, a fan is hydraulically controlled to achieve non-stop cleaning of corn straw and bract scraps adsorbed on the wind scooper side, and the harvesting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a hydraulically controlled reversible cooling fan mechanism for a corn harvester. Background Technique

[0002] At present, the cooling mechanisms of corn harvesters developed and manufactured in the domestic market mainly use the engine fan to directly cool the radiator. Although such a structure is simple, on some corn harvesters, due to the large number of configurations and functions, the radiator often cannot be arranged on the side of the engine fan; for the radiator arranged on the fan side, when the corn harvester is harvesting, since straw, bract debris, etc. will be generated during the processes of straw chopping and corn ear husking, and float around the corn harvester. Since the side of the air guide cover of the radiator assembly is usually under negative pressure, these straw, bract debris, etc. will be adsorbed to the air guide cover side of the radiator assembly, causing the air guide cover to be blocked, thereby affecting the cooling of the engine and the hydraulic system. Seriously, it will lead to problems such as high temperature of the engine and hydraulic system, and even cause the machine to stop due to reasons; at present, some engine manufacturers in the market also use reverse fans, but the cost is relatively high, and it is not applicable to models with radiators arranged in other positions;

[0003] In view of the problems existing in the above-mentioned prior art, a hydraulically controlled reversible cooling fan mechanism for a corn harvester is developed to solve the problem of abnormal high temperature of the power system and hydraulic system caused by the blockage of the radiator air guide cover during the harvesting process of the corn harvester, improve the harvesting efficiency, reduce the failures of the power system and hydraulic system, and improve the service life of the whole machine. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulically controlled reversible cooling fan mechanism for a corn harvester to solve the blockage problem caused when the radiator of the corn harvester is arranged in other positions during harvesting.

[0005] To achieve the above purpose, a hydraulically controlled reversible cooling fan mechanism for a corn harvester is provided, including a radiator assembly, a hydraulic system, and a cooling fan reverse control component. It is characterized in that the hydraulic system is surrounded and installed on the right periphery of the radiator assembly and controls its cooling air direction through hydraulic pressure. One end of the cooling fan reverse control component is connected to the hydraulic system for control. The fan is hydraulically controlled to clean the debris of corn straw and bracts adsorbed on the air guide cover side without stopping the machine, which improves the harvesting efficiency, reduces the failures of the power system and hydraulic system, and improves the service life of the whole machine.

[0006] According to the hydraulic control reversible cooling fan mechanism for a corn harvester described above, the radiator assembly is jointly composed of a radiator main body, a cooling fan assembly, a fan bracket, a bearing seat, and a radiator air guide cover. Among them, the fan bracket is fixedly installed on the right side of the outer shell of the radiator main body, the radiator air guide cover is fixedly installed on the left side of the outer shell of the radiator main body, the cooling fan assembly is installed inside the fan bracket through the bearing seat and is rotationally connected thereto, and the right side of the bearing seat is fixedly assembled with the hydraulic system.

[0007] According to the hydraulic control reversible cooling fan mechanism for a corn harvester described above, the hydraulic system is jointly composed of a hydraulic oil tank, a hydraulic oil pump, a hydraulic control valve, a hydraulic motor, and several oil pipes. Among them, both the hydraulic oil tank and the hydraulic control valve are provided with an oil inlet and an oil return port, the hydraulic oil pump is provided with a suction port and a pressure port, the suction port is fixedly connected to the hydraulic oil tank through an oil pipe, the pressure port is fixedly connected to the oil inlet of the hydraulic control valve through an oil pipe, the working oil port of the hydraulic control valve is fixedly connected to the hydraulic motor through an oil pipe, the oil return port of the hydraulic control valve is fixedly connected to the hydraulic oil tank through an oil pipe, the hydraulic motor is fixedly connected to the center of the right side of the bearing seat, and the power output shaft of the hydraulic motor is connected to the cooling fan assembly through a spline shaft inside the bearing seat.

[0008] According to the hydraulic control reversible cooling fan mechanism for a corn harvester described above, one end of the cooling fan reverse control assembly is connected to the hydraulic control valve, the cooling fan reverse control assembly extends outward and is provided with a control handle, and the control handle controls the opening and closing of the hydraulic control valve from the far end.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] Compared with the prior art, the hydraulic control reversible cooling fan mechanism for a corn harvester of the present utility model solves the problems that during the harvesting process of the corn harvester, debris such as corn straws and husks will adsorb to the side of the radiator air guide cover, causing blockage of the air guide cover and resulting in high temperatures of the engine and hydraulic system. It realizes cleaning the debris of corn straws and husks adsorbed on the side of the air guide cover without stopping the machine, improves the harvesting efficiency, reduces the failures of the power system and the hydraulic system, and improves the service life of the whole machine.

[0011] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0012] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0013] Figure 1This is a schematic diagram of the overall structure of a hydraulic control reversible cooling fan mechanism for a corn harvester according to the present utility model;

[0014] Figure 2 This is a first - perspective schematic diagram of the hydraulic system in a hydraulic control reversible cooling fan mechanism for a corn harvester according to the present utility model;

[0015] Figure 3 This is a second - perspective schematic diagram of the hydraulic system in a hydraulic control reversible cooling fan mechanism for a corn harvester according to the present utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure of the radiator assembly in a hydraulic control reversible cooling fan mechanism for a corn harvester according to the present utility model.

[0017] In the figure: 1. Radiator main body; 2. Cooling fan assembly; 3. Fan bracket; 4. Hydraulic oil tank; 5. Hydraulic oil pump; 6. Hydraulic control valve; 7. Hydraulic motor; 8. Operating handle; 9. Bearing seat; 10. Radiator air guide cover. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0019] Please refer to Figures 1-4 , the present utility model provides a technical solution: A hydraulic control reversible cooling fan mechanism for a corn harvester mainly consists of a radiator assembly, a hydraulic system, and a cooling fan reverse control assembly. Among them, the radiator assembly includes a radiator main body 1, a cooling fan assembly 2, a fan bracket 3, a bearing seat 9, and a radiator air guide cover 10. The hydraulic system includes a hydraulic oil tank 4, a hydraulic oil pump 5, a hydraulic control valve 6, a hydraulic motor 7, and several oil pipes. One end of the cooling fan reverse control assembly is connected to the hydraulic control valve 6, which can clean the debris of corn straws and husks adsorbed on the side of the air guide cover without stopping the machine, improving the harvesting efficiency, reducing the failures of the power system and the hydraulic system, and increasing the service life of the whole machine.

[0020] The fan bracket 3 is fixed on the radiator housing. The cooling fan assembly 2 is installed on the fan bracket 3 through the bearing seat 9 and can rotate freely. When it rotates counterclockwise facing the cooling fan, the air flows towards the fan bracket 3 side. Conversely, the air flows towards the radiator air guide cover 10 side.

[0021] The hydraulic oil tank 4 is provided with an oil inlet and an oil return port. The hydraulic oil pump 5 is provided with a suction port and a pressure oil port. The suction port is connected to the hydraulic oil tank 4 through a pipeline, and the pressure oil port is connected to the oil inlet of the hydraulic control valve 6 through a pipeline. The working oil port of the hydraulic control valve 6 is connected to the hydraulic motor 7 through a pipeline, and the oil return port of the hydraulic control valve 6 is connected to the hydraulic oil tank 4 through a pipeline. The hydraulic motor 7 is fixed on the heat dissipation fan bearing seat 9, and the power output shaft of the hydraulic motor 7 is connected to the heat dissipation fan through a spline shaft in the bearing seat 9.

[0022] One end of the heat dissipation fan reverse control assembly is connected to the hydraulic control valve 6. The hydraulic control valve 6 is used to control the flow direction of the hydraulic oil so that the hydraulic motor 7 rotates forward or reversely. There are multiple channels in the body of the hydraulic control valve 6, and two of the multiple channels are respectively a forward channel and a reverse channel. When the operating handle 8 of the heat dissipation fan reverse control assembly is not manipulated, facing the heat dissipation fan, the heat dissipation fan assembly 2 rotates counterclockwise, and the side of the radiator air deflector 10 is under negative pressure. When the operating handle 8 of the heat dissipation fan reverse control assembly is manipulated, at this time, the flow direction of the hydraulic oil in the hydraulic control valve 6 changes, the hydraulic motor 7 rotates reversely, and drives the heat dissipation fan assembly 2 to rotate reversely. At this time, facing the heat dissipation fan, the heat dissipation fan assembly 2 rotates clockwise, and the side of the radiator air deflector 10 is under positive pressure. Under normal circumstances, facing the heat dissipation fan, the heat dissipation fan assembly 2 rotates counterclockwise, and the side of the air deflector of the radiator assembly is under negative pressure.

[0023] Working principle: When the corn harvester is harvesting, once it is found that there are a lot of adsorbed debris such as corn straws and husks on the side of the radiator air deflector 10, which affects heat dissipation, the operator can manipulate the handle of the heat dissipation fan reverse control assembly at any time to reverse the heat dissipation fan. At this time, the flow direction of the air changes, and the debris of corn straws and husks adsorbed on the side of the radiator air deflector 10 will fall instantly. Then, when the operating handle 8 of the heat dissipation fan reverse control assembly is released, the heat dissipation fan will return to its original rotation direction, realizing the cleaning of the debris such as corn straws and husks on the side of the radiator air deflector 10 without stopping the machine.

[0024] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A hydraulically controlled reversible cooling fan mechanism for a corn harvester, comprising a radiator assembly, a hydraulic system and a cooling fan reversal control assembly, characterized in that: The hydraulic system is arranged around the right periphery of the radiator assembly and controls the heat dissipation wind direction thereof through hydraulic pressure. One end of the heat dissipation fan reversal control assembly is connected to the hydraulic system control.

2. A hydraulically controlled reversible cooling fan mechanism for a corn harvester as claimed in claim 1, characterized in that: The radiator assembly is composed of a radiator body (1), a cooling fan assembly (2), a fan bracket (3), a bearing seat (9) and a radiator air guide cover (10), wherein the fan bracket (3) is fixedly mounted on the right side of the outer shell of the radiator body (1), the radiator air guide cover (10) is fixedly mounted on the left side of the outer shell of the radiator body (1), the cooling fan assembly (2) is mounted on the inner side of the cooling fan bracket (3) through the bearing seat (9) and is rotatably connected thereto, and the right side of the bearing seat (9) is fixedly assembled with the hydraulic system.

3. A hydraulically controlled reversible cooling fan mechanism for a corn harvester as claimed in claim 2, characterized in that: The hydraulic system is composed of a hydraulic oil tank (4), a hydraulic oil pump (5), a hydraulic control valve (6), a hydraulic motor (7) and a plurality of oil pipes, wherein the hydraulic oil tank (4) and the hydraulic control valve (6) are both provided with an oil inlet and an oil return port, the hydraulic oil pump (5) is provided with an oil suction port and an oil pressure port, the oil suction port is connected and fixed with the hydraulic oil tank (4) through an oil pipe, the oil pressure port is connected and fixed with the oil inlet of the hydraulic control valve (6) through an oil pipe, the working oil port of the hydraulic control valve (6) is connected and fixed with the hydraulic motor (7) through an oil pipe, the oil return port of the hydraulic control valve (6) is connected and fixed with the hydraulic oil tank (4) through an oil pipe, the hydraulic motor (7) is fixedly connected to the right center of the bearing seat (9), and the power output shaft of the hydraulic motor (7) is connected to the cooling fan assembly (2) through a spline shaft in the bearing seat (9).

4. A hydraulically controlled reversible cooling fan mechanism for a corn harvester as claimed in claim 3, characterized in that: One end of the cooling fan reversal control assembly is connected to the hydraulic control valve (6), and the cooling fan reversal control assembly extends outwardly and is provided with a control handle (8), and the control handle (8) controls the opening and closing of the hydraulic control valve (6) from a remote end.

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