阅读说明：本技术 皮带传动的离心风机驱动的联合收割机的吸尘装置 (Dust suction device of belt-driven centrifugal fan-driven combine harvester ) 是由 刘超 吴江伟 谷春雨 于 2020-05-21 设计创作，主要内容包括：本发明公开了一种皮带传动的离心风机驱动的联合收割机的吸尘装置,包括传动部件和吸尘部件,所述的传动部件包括驱动带轮、小带轮、大带轮和风扇皮带轮,所述的驱动带轮替换收割机传动系统的原皮带轮,驱动带轮的皮带槽数相比原皮带轮增加一格；驱动带轮通过吸尘器张紧皮带与小带轮相连接,所述的小带轮与大带轮同轴安装,所述的大带轮通过吸尘器传动皮带与风扇皮带轮相连接；所述的吸尘部件包括风扇组合、蜗壳外壳和吸尘器外壳。本发明可靠性高、通用性强,运行平稳且没有噪音,易维修、保养便宜且便于张紧与拆卸；采用二级皮带传动,通过改变皮带轮的大小可加大风机转速与加大吸尘的效果；吸风量大,成本低。(The invention discloses a dust collection device of a belt-driven centrifugal fan-driven combine harvester, which comprises a transmission part and a dust collection part, wherein the transmission part comprises a driving belt wheel, a small belt wheel, a large belt wheel and a fan belt wheel, the driving belt wheel replaces an original belt wheel of a harvester transmission system, and the number of belt grooves of the driving belt wheel is increased by one compared with that of the original belt wheel; the driving belt wheel is connected with a small belt wheel through a dust collector tensioning belt, the small belt wheel and a large belt wheel are coaxially arranged, and the large belt wheel is connected with a fan belt wheel through a dust collector transmission belt; the dust collection component comprises a fan assembly, a volute casing and a dust collector casing. The invention has high reliability, strong universality, stable operation, no noise, easy maintenance, cheap maintenance and convenient tensioning and disassembly; the secondary belt transmission is adopted, and the rotating speed of the fan and the dust collection effect can be increased by changing the size of the belt pulley; large air suction amount and low cost.)

1. A belt-driven dust suction device of a combine harvester driven by a centrifugal fan comprises a transmission part and a dust suction part, and is characterized in that the transmission part comprises a driving belt wheel, a small belt wheel, a large belt wheel and a fan belt wheel, the driving belt wheel replaces an original belt wheel of a harvester transmission system, and the number of belt grooves of the driving belt wheel is increased by one compared with that of the original belt wheel; the driving belt wheel is connected with the small belt wheel through a dust collector tensioning belt, the small belt wheel and the large belt wheel are coaxially arranged on a belt wheel mounting seat, and the large belt wheel is connected with the fan belt wheel through a dust collector transmission belt;

the dust absorption part comprises a fan assembly, a volute casing and a dust collector casing, the dust collector casing is arranged above the conveying groove, a dust absorption opening matched with the conveying groove is formed in the lower wall of the dust collector casing, a dust exhaust opening matched with the volute casing is formed in one side wall of the dust collector casing, the outer side wall of the volute casing is connected with the belt wheel mounting seat, the fan assembly is arranged inside the volute casing, and the fan assembly is connected with the fan belt pulley.

2. The suction device of a belt-driven centrifugal fan-driven combine harvester according to claim 1, wherein a suction belt pulley is abutted to the outer side of the suction belt pulley, and the suction belt pulley is rotatably connected with the pulley mounting seat through a rotary connecting rod.

3. The suction device of a belt driven centrifugal fan driven combine harvester according to claim 2, wherein the lower wall of the volute casing is connected with a tension spring mounting seat, the tension spring mounting seat is connected to a suction cleaner tension pulley through a tension spring, and the suction cleaner tension pulley is located above the suction cleaner tension belt.

4. The suction cleaner of a belt driven, centrifugal fan driven combine harvester of claim 1, wherein the volute discharge opening of the volute housing is directed towards the ground.

5. The dust collector of a belt-driven centrifugal fan driven combine harvester according to claim 1, wherein the dust collector housing is rectangular in shape as a whole, and a flow guiding angle is arranged on one side of the dust collector housing, which faces away from the volute casing.

6. The suction attachment of a belt driven, centrifugal fan driven combine harvester of claim 1, wherein the volute housing is connected to the cleaner housing by a removable standard.

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a dust suction device of a belt-driven centrifugal fan-driven combine harvester.

Background

When the existing combine harvester is used for harvesting, the dust is large and is not beneficial to the health of operators, so that the dust collection device of the combine harvester with the belt-driven centrifugal fan structure is invented.

The traditional dust suction device of the combine harvester is driven by a motor, but the dust suction device of the combine harvester driven by the motor has the following defects: 1. when the motor works in rainy days or muddy places, water is easy to enter the motor, so that the dust collector cannot collect dust and stops working. 2. Because the environment of harvester work is comparatively abominable, has a large amount of dust, vibration and mud pollution, and electrical components and parts appear easily and damage such as short circuit, open circuit etc. in case damage electrical apparatus cost of maintenance height. 3. The installation of the motor needs the change of wire arrangement and wiring, which complicates the harvester, thereby reducing the reliability and the universality of the harvester and increasing the cost. 4. Due to the accumulation of dust, the motor is easily overloaded, damaged and even burnt when the dust collector is blocked. 5. When the motor stops rotating, a large amount of heat is generated, the position of the dust suction device is close to the straw, and if the dust suction device contacts the straw, the straw can be burnt and ignited, so that great potential safety hazards exist.

Disclosure of Invention

The invention aims to solve the defects of the prior art, and provides a dust collection device of a belt-driven centrifugal fan-driven combine harvester, which comprises a transmission part and a dust collection part, wherein the transmission part comprises a driving belt wheel, a small belt wheel, a large belt wheel and a fan belt wheel, the driving belt wheel replaces the original belt wheel of a harvester transmission system, and the number of belt grooves of the driving belt wheel is increased by one compared with that of the original belt wheel; the driving belt wheel is connected with the small belt wheel through a dust collector tensioning belt, the small belt wheel and the large belt wheel are coaxially arranged on a belt wheel mounting seat, and the large belt wheel is connected with the fan belt wheel through a dust collector transmission belt;

the dust absorption part comprises a fan assembly, a volute casing and a dust collector casing, the dust collector casing is arranged above the conveying groove, a dust absorption opening matched with the conveying groove is formed in the lower wall of the dust collector casing, a dust exhaust opening matched with the volute casing is formed in one side wall of the dust collector casing, the outer side wall of the volute casing is connected with the belt wheel mounting seat, the fan assembly is arranged inside the volute casing, and the fan assembly is connected with the fan belt pulley.

In order to prevent the tension degree of the belt from being adjusted due to the fact that the dust collector tension belt slips or extends due to long-term operation, the outer side of the dust collector tension belt is abutted to a dust collector tension pulley, and the dust collector tension pulley is rotatably connected with the belt wheel mounting seat through a rotary connecting rod.

Preferably, the lower wall of the volute casing is connected with a tension spring mounting seat, the tension spring mounting seat is connected to a dust collector tensioning belt pulley through a tension spring, and the dust collector tensioning belt pulley is located above a dust collector tensioning belt.

Further, the volute dust outlet of the volute casing faces the ground.

Furthermore, the whole dust collector shell is cuboid, and a flow guide angle is arranged on one side of the dust collector shell, which faces away from the volute casing.

For ease of maintenance and cleaning, the volute housing is preferably connected to the cleaner housing by a removable standard.

The operation principle is as follows: in the harvesting process of the harvester, the reel 1-1 dials crops to the cutter, the cutter cuts the crops, the crops are dialed down on the header 2-2 by the reel 1-1, the header feeding screw conveys the cut crops to the middle of the header, the crops are diverted to the inclined conveyor 3-3 by the telescopic rake of the feeding screw, then the crop feeding roller 6-6 is threshed and separated by the conveying chain rake of the inclined conveyor 3-3, clean grains fall into the screw, are lifted to the grain bin, are blown away by the air flow of the fan, the straws and glumes are blown out of the harvester, and finally the residual straws are cut into pieces by the straw cutter 7-7 and fall on the ground. In the dust collector, the header belt starts to rotate to drive the driving belt wheel 1 to rotate, the driving belt wheel 1 drives the dust collector tensioning belt 2 to rotate, the dust collector tensioning belt 2 transmits power to the small belt wheel 9, the small belt wheel 9 is coaxially arranged with the large belt wheel 4, the power is synchronized to the large belt wheel 4, the large belt wheel 4 is connected with the fan belt wheel 10 through the dust collector transmission belt 5, the fan belt wheel 10 is connected with the fan combination 7, the large belt wheel drives the variable speed combination of the small belt wheels to increase the rotating speed of the fan combination 7 to the range where the dust collector can normally work, the fan combination 7 rotates, and dust is sucked into the dust collector shell 8 through the suction force of the fan combination 7 and is discharged to the ground from the lower side.

Has the advantages that: (1) according to the invention, the original belt pulley is replaced, power is directly connected, additional wire arrangement and wiring are not needed, the reliability is high, and the universality is strong.

(2) The belt transmission structure is simple, has good elasticity, can alleviate impact and vibration during transmission, and has stable motion and no noise.

(3) The belt drive is easy to maintain, inexpensive to maintain and convenient to tension and disassemble relative to the motor drive.

(4) The belt transmission in the invention is a secondary belt transmission, the rotating speed of the fan and the dust collection effect can be increased by changing the size of the belt pulley, and the belt transmission can be matched with the combination of fans of different types to achieve the optimal operation effect.

4. The dust collection component of the invention adopts a spiral volute centrifugal structure, and has large air suction amount and low cost.

Drawings

FIG. 1 is a schematic view showing an installation position of a dust suction apparatus;

FIG. 2 is a schematic view of a driving structure of the dust suction apparatus;

FIG. 3 is a schematic structural view of a primary pulley;

FIG. 4 is a front view of the dust suction apparatus;

FIG. 5 is a side view of the dust extraction member;

FIG. 6 is a schematic view of the position of the suction device and the delivery chute;

in the figure: 1-1 parts of reel, 2-2 parts of header, 3-3 parts of inclined conveying groove, 4-4 parts of dust suction device, 5-5 parts of crawler chassis, 6-6 parts of roller, 7-7 parts of grass cutter; 1. the device comprises a belt wheel for driving a power source, a belt wheel for tensioning the dust collector, a belt wheel for 4 big wheels, a belt wheel for 5 transmission belts of the dust collector, a volute casing for 6, a fan assembly for 7, a casing for 8 dust collectors, a small belt wheel for 9, a belt wheel for 10 fan wheels, an original belt wheel for 11, a guide angle for 12, a guide angle for 13, a rotary connecting rod for 14, a tension spring for 15, a tension spring mounting seat for 16 and.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1-6, a dust suction device of a belt-driven centrifugal fan-driven combine harvester comprises a transmission part and a dust suction part, wherein the transmission part comprises a driving pulley 1, a small pulley 9, a large pulley 4 and a fan pulley 10, the driving pulley 1 replaces an original pulley 11 of a harvester transmission system, and the number of belt grooves of the driving pulley 1 is increased by one compared with that of the original pulley; the driving belt wheel 1 is connected with a small belt wheel 9 through a dust collector tensioning belt 2, the small belt wheel 9 and a large belt wheel 4 are coaxially arranged on a belt wheel mounting seat 16, and the large belt wheel 4 is connected with a fan belt wheel 10 through a dust collector transmission belt 5;

the dust collection component comprises a fan assembly 7, a volute casing 6 and a dust collector casing 8, the dust collector casing 8 is arranged above the conveying groove 3-3, the lower wall of the dust collector casing 8 is provided with a dust collection port matched with the conveying groove 3-3, one side wall of the dust collector casing 8 is provided with a dust discharge port matched with the volute casing 6, the outer side wall of the volute casing 6 is connected with a belt wheel mounting seat 16, the fan assembly 7 is arranged in the volute casing 6, and the fan assembly 7 is connected with a fan belt wheel 10; the whole dust collector shell 8 is cuboid, and one side of the dust collector shell 8 back to the volute casing 6 is provided with a flow guide angle 12; the volute dust outlet of the volute casing 6 faces the ground.

In this embodiment, a dust collector tension pulley 3 is abutted to the outer side of the dust collector tension belt, and the dust collector tension pulley 3 is rotatably connected with a pulley mounting seat 16 through a rotary connecting rod 13. The dust collector tension pulley 3 can prevent the dust collector tension belt 2 from slipping or extending due to long-term operation; the lower wall of spiral case shell 6 is connected with extension spring mount pad 15, extension spring mount pad 15 be connected to dust catcher tensioning pulley 3 through an extension spring 14, dust catcher tensioning pulley 3 be located the top of dust catcher tensioning belt 2.

In this embodiment, the volute housing 6 is connected to the cleaner housing 8 by a detachable standard.

The operation principle is as follows: in the harvesting process of the harvester, the reel 1-1 dials crops to the cutter, the cutter cuts the crops, the crops are dialed down on the header 2-2 by the reel 1-1, the header feeding screw conveys the cut crops to the middle of the header, the crops are diverted to the inclined conveyor 3-3 by the telescopic rake of the feeding screw, then the crop feeding roller 6-6 is threshed and separated by the conveying chain rake of the inclined conveyor 3-3, clean grains fall into the screw, are lifted to the grain bin, are blown away by the air flow of the fan, the straws and glumes are blown out of the harvester, and finally the residual straws are cut into pieces by the straw cutter 7-7 and fall on the ground. In the dust collector, the header belt starts to rotate to drive the driving belt wheel 1 to rotate, the driving belt wheel 1 drives the dust collector tensioning belt 2 to rotate, the dust collector tensioning belt 2 transmits power to the small belt wheel 9, the small belt wheel 9 is coaxially arranged with the large belt wheel 4, the power is synchronized to the large belt wheel 4, the large belt wheel 4 is connected with the fan belt wheel 10 through the dust collector transmission belt 5, the fan belt wheel 10 is connected with the fan combination 7, the large belt wheel drives the variable speed combination of the small belt wheels to increase the rotating speed of the fan combination 7 to the range where the dust collector can normally work, the fan combination 7 rotates, and dust is sucked into the dust collector shell 8 through the suction force of the fan combination 7 and is discharged to the ground from the lower side.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.