• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an air-cooling system for a drive engine of an automotive agricultural machine, in particular a field chopper. It is a goal of this invention to provide a forced-air cooling system with considerable cooling capacity and a good cleaning effect for screens and the engine compartment. This object is attained by providing a cooling system where the warm air is blown upwardly and selectively to one side, a reversal of the cooling-air stream for cleaning the screens being possible, and a forced-air ventilating of the engine compartment being assured. The basis of the invention is that an air compartment is provided with two fans mounted between a pair of radiators each behind a respective screen. An air-deflector plate is so arranged in the air compartment that it is possible to alternate the fans between radiators so that the cooling-air stream can pass in either direction through each of the radiators and screens. One fan meanwhile blows cooling air into the engine compartment, which air escapes upwardly through openings in the upper machine wall.
    公开号:SU1042658A1
    申请号:SU797770946
    申请日:1979-11-30
    公开日:1983-09-23
    发明作者:Дитер Берт；Готфрид Хольфельд；Клаус Олива；Кристиан Ноак
    申请人:Феб Комбинат Фортшритт Ландмашинен (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to controlling air in a cooling system and on a drive motor of a self-propelled agricultural machine, especially a silage combine, in which cooling air is drawn through a mesh sieve at the rear of the machine and requires cleaning of water radiators and mesh surfaces to ensure cooling performance and cleaning and airing engine mounting points to reduce the risk of fire.
    Self-propelled agricultural machines, especially high-capacity harvesting and stalk-harvesting machines, contaminated water radiators and mesh surfaces are a major obstacle to the cooling of the drive engine, and the contamination of the drive engine represents a high risk of fire. To eliminate these drawbacks, various means have been created for cleaning water radiators, mesh surfaces, and the drive engine.
    Cooling air systems (GDR patents No. 107 565 and No. 117 585) are known in which cooling air is sucked in and blown out through water radiators to the engine installation site and then directed through the drive engine or forward.
    These cooling systems have the disadvantage that the mesh surfaces cannot be cleaned up on their own. With this type of air exhaust, the serving person is subjected to increased loads of dust, noise and heat. Due to the low driving speed under adverse conditions, the heat wall in the engine space is obtained and the heated air is again absorbed by the cooling system.
    In other solutions, water radiators and mesh surfaces are cleaned by reversing the flow of cooling air.
    Known air control patent GDR No. 128 200 ,. According to which between the two water radiators the main fan is horizontally located and behind the drive engine is a vertically auxiliary fan. The air valves are positioned behind the main and external fans and connected to one another so that when the valves over the main fan are closed, the auxiliary fan air valves are open to the air reservoir and the air flow created by the auxiliary fan causes the particles to be removed fall off the mesh surfaces.
    The disadvantage of this solution is that the auxiliary fan uses
    only for cleaning the mesh surfaces, there is no extensive valve system for controlling the flow of cooling air, the engine space and the drive motor are contaminated when the auxiliary fan is running due to low pressure in the engine space, there is no gear for driving the main fan. The cleaning effect of the air flow of the auxiliary fan is limited by the mesh surface, since the performance parameters of the auxiliary fan are much lower than the performance parameters of the main fan.
    Air control is also known.
    (GDR patent No. 129540), according to which, above the air reservoir, there is a swinging frame with baffles of the fan casing, in which there are impellers for axial movement of air. Cups
    fan housings are located symmetrically to the frame plane. By rotating the frame 180 °, the air inlets and outlets change their position, the air flow acts in the opposite direction and the water radiators and
    mesh surfaces are cleaned.
    The disadvantage of this solution is that there is no airing of the motor space in which the heat wall occurs and cleaning is not provided.
    drive motor. The sealing of the frame with respect to the air reservoir is complicated.
    The purpose of the invention is to create forced air control around the cooling system and drive engine with high air capacity to achieve high cooling performance and high cleaning effect of the water radiator, mesh surfaces and motor space, as well as
    Controlling the air around the cooling system and the drive motor of an agricultural machine that delivers warm air upward or desire in one direction, allows switching the flow of cooling air to clean the mesh surfaces by simple means and provides blowing of the motor space under pressure.
    The goal is achieved by the fact that inside one compartment of the mesh surfaces between two water radiators, two fans are installed on a common drive shaft behind one drive motor in the end walls of the air tank, the side walls of which form water radiators so that between them there is an arrangement of a butterfly valve for the direction of the fan-generated air flow to the water radiator. For this purpose, the air reservoir separates diagonally with a slide valve. Between the drive motor and the fan, there is a separation wall from the top cover of the machine approximately to the common drive shaft of the fan. In front of this dividing wall, in the top cover of the machine, there are holes for purging the engine compartment and behind the dividing wall - the same holes for air outlet. Due to the location of the fans and the possible control of the air guide valve, the cooling air through the water radiator can be sucked in and then, after turning the air guide valve, can be pumped to clean the water radiator and mesh surfaces. The drive shaft of the fans is rotated in a known manner, preferably from the drive motor disk by means of V-belts. The air guide valve, which is located between the two fans, can be switched through the control mechanism from the service platform of the farm machine. Due to this, the flow of cooling air from the rear fan, for example, can be pumped through the right water radiator, while the front fan sucks the cooling air through the left water radiator and directs the air upward to cool the exhaust device below the separation wall partially to prevent it from loading. knowledge of the engine compartment and the engine compartment to prevent the heat-restraint at the engine installation site. When the air flap is switched, the rear fan air is pumped through the left water radiator, ejects it and the mesh surfaces belonging to it, and the front fan sucks the cooling air through the right water radiator. Due to this, alternate cleaning of both water radiators and mesh surfaces belonging to them is possible. Further, it is possible to prevent water radiators and mesh surfaces, for example, and silo 1 of the combine, in which it is guided due to the water radiator, air flow in the direction that due to the loading and wind circumstances is loaded most of all. cleaned, masses. Due to the stagnant action of the blown up and to the side, the danger of contamination of the cooling air of the feed and the remaining suction side then lie in a zone of lower danger of contamination. In order to separate coarse soils, a mesh surface or a cyclone is also located in front of the fan at the stern. FIG. 1 shows the proposed device with air control of a silage combine, side view; in fig. 2 - the same, top view. In the main frame (not shown) on the rear frame 1 in the engine compartment 2 there is a drive motor 3, behind the engine compartment 2 there is an air reservoir 4, which is surrounded by a skin of mesh surfaces 5. The side walls of the air reservoir 4 are formed by water radiators 6 and 7 In the end walls 8 and 9 of the air reservoir 4, the fans 10 and 11 operate on a common drive shaft 12, which is driven by a V-belt 13, which is mounted on the disks 14 and 15 on the drive motor 3 and the drive shaft 12. Between the fans 10 and 11 is n The rotary air guide valve 16, which separates the air reservoir 4, is always diagonal. Between the drive motor 3 and the fan, the separator wall 17 is located from the top cover 18 of the machine approximately to the drive shaft 12. On both sides of the separation wall 17 in the top cover 18 of the machine there are openings 19 and 20. In the space between the air reservoir 4 and The top cover 18 of the machine is fixed to the installation 21 of the exhaust of the drive engine 3, which is discharged to the outside. In the position of the air guide valve 16 shown in the drawing, the cooling air flow of the fan 11 is directed through the water radiator 6, and the cooling air flow of the fan 10 is directed through the water radiator 7. With the indicated air flow damper 16 position of the cooling air the fan 11 is directed through the water radiator 7 and the flow of cooling air of the fan 10 through the water radiator 7. In this case, the flow direction of the cooling air at the water radiators 6 and 7 and at the mesh surfaces 5 relative to the originally named position of the air guide plate 16 is opposite. Due to this possible change in the direction of flow of the cooling air, water radiators 6 and 7 and the mesh surfaces 5 lying in front of them are cleaned. The fan 10 draws air through, connected due to the position of the water radiator damper and directs it partially upwards through the holes 20 and cools with the installation of 21 exhaust. Another part of the cooling air is directed by the fan 10 below the partition wall 17 to ventilate the engine compartment 2 and clean the drive engine
    3 in the engine compartment 2 and is directed through the opening 19 to the top. The fan 11 draws cooling air through the rear mesh surface 22 lying in front of it and pumps it through the attached water radiators 6 and 7 in accordance with the position of the air guide damper.
    It is recognized as an invention according to the results of the examination carried out by the Office for the Invention of the German Democratic Republic.
    权利要求:
    Claims (1)
    [1]
    A device for controlling air in the cooling system of a drive engine of a self-propelled agricultural machine with water radiators located at a distance from each other, characterized in that two fans 10 and 11 are mounted on a joint drive shaft 12 behind the drive motor 3 in the frontal walls 8 and 9 air reservoir 4, the sides of which are formed by water radiators 6 and 7, and between the fans 10 and 11 there is a rotary air guide damper 16, which is always located in the air reservoir 4 about the diagonal and divides it into two parts, which are limited by one of the water radiators 6 or 7, one of the fans 10 or And and the air guide damper 16, and between the drive motor 3 and fan 10 there is a separation wall 17 from the top cover> 8 of the machine to the joint drive shaft 12, on both sides of the dividing wall 17 there are openings 19 and 20 in the upper g cover 18 of the machine and between the air reservoir 4 and the top cover of the machine is the exhaust system 21 of the drive motor 3.
    类似技术:
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    US4542785A|1985-09-24|Agricultural harvester heat exchanger
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    同族专利:
    公开号 | 公开日
    DE2948071C2|1987-02-12|
    BG41144A1|1987-05-15|
    FR2445239B1|1984-09-21|
    FR2445239A1|1980-07-25|
    GB2041850B|1982-11-17|
    US4339014A|1982-07-13|
    PL119321B1|1981-12-31|
    PL220421A1|1980-09-08|
    CS222986B1|1983-08-26|
    DD140105A1|1980-02-13|
    GB2041850A|1980-09-17|
    DE2948071A1|1980-07-17|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD21014478A|DD140105A1|1978-12-27|1978-12-27|AIR GUIDE TO THE COOLING SYSTEM AND DRIVE MOTOR OF A SELF-OPERATING AGRICULTURAL MACHINE|
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