KR100776590B1 - Fertilizer distributor - Google Patents

Abstract

A fertilizer distributor is provided to make the connection of power convenient by driving a distributing fan and a stirring fan by connecting them to a power shaft of a tractor with a flexible shaft. A fertilizer distributor includes a hopper(100), a dispersing fan(110), a stirring wing(120), an adjusting device(130), a frame, and a link connection tool(170). The power of a tractor is transmitted to the fertilizer distributor by a power transmission structure. The power transmission structure includes a gear box(30), a connection pipe(10), and a flexible shaft constitution(20). The gear box is installed to stand on a shaft of the distributing fan. One side of the connection pipe is fixed on a side portion of the gear box, and the other side of the connection pipe is fixed on the inner and outer walls of the hopper.

Description

Fertilizer Spreader {FERTILIZER DISTRIBUTOR}

1 is a structural diagram of the present invention

2 is an exemplary embodiment in which the flexible shaft assembly of the present invention is separately configured.

3 is an exemplary embodiment in which the flexible shaft assembly of the present invention is separately configured.

4 is a state diagram used in the present invention

* Description of Major Symbols

10. Connector 11. Inner bracket 12. Outer bracket

20. Flexible Shaft Construct

20A. Hopper external connecting shaft 20B. Hopper internal fixed shaft

21. Flexible shaft

22. Power shaft connection 23. Gearbox connection

24. Reinforcing ring 25. Pin 26. Connection 27. Plug

30. Gearbox

31. Bevel Gear 32. Gearbox Bearing

100. Hopper 110. Spraying pan 120. Stirring wing

130. Adjuster 160. Frame

170. Link end 180. 190. Bearing

200. Tractor Power Shaft

The present invention is to spread the fertilizer by the flexible shaft connected to the power shaft of the tractor, and more particularly to a fertilizer spreader for driving the spreading fan and the stirring blade by installing a flexible shaft connected to the tractor's power shaft in the gearbox. .

A conventional fertilizer spreader used for mounting on a tractor or the like is a hopper for storing fertilizer, a spreading fan provided at the fertilizer outlet of the lower hopper, a stirring blade fixed to the spreading fan shaft inside the hopper, and a flow rate of fertilizer. A fertilizer flow rate adjusting device comprising a flow rate adjusting plate installed at the fertilizer outlet for controlling and a control lever for operating the same; a driving device installed for driving the spreading fan; a frame for supporting each of the above elements; It is formed in the upper and lower left and right of the link connector is installed to be mounted on the tractor is made of a structure containing as a basic element

The driving device of the fertilizer spreader is a mechanical type of structure in which a hydraulic motor directly connected to a spraying fan shaft is directly driven and a power connected to a power shaft such as a tractor is connected to the spraying fan shaft using a gearbox.

Mechanical type is a structure that directly connects the driving shaft of agricultural machinery and the driving shaft of working machine to the shaft, or indirectly by belt or chain, etc. This has the advantage of accurately matching the speed ratio between the power shaft and the spreading fan shaft. However, the connection structure of shafts, bearings and joints is complicated and expensive, and the power loss due to the resistance of the shaft itself is large, and the rotating element is exposed while rotating. Therefore, there is a very big disadvantage of safety accidents.

The hydraulic type is a structure that connects directly to the lower or upper part of the spreading fan shaft by using a hydraulic motor and connects the hydraulic pressure made by the tractor through a hose. It has the advantage of free and easy power connection, but can be used only for a tractor with a separate hydraulic unit. And, if there is no hydraulic unit, such as a tiller, there is a disadvantage that the use is limited. In addition, in the case of a tractor equipped with a hydraulic unit, the generated hydraulic pressure is designed to obtain a hydraulic pressure suitable for intermittent linear motion like a cylinder, and in the case of a mechanism that obtains rotational driving by continuously circulating hydraulic pressure such as a hydraulic motor, Accordingly, there is a problem in that hydraulic system failures such as oil burnout and thread wear are not frequent and the service life is not long, and output deterioration or rotation speed is not uniform and accurate control is difficult due to heat generation.

Other power transmission devices are driven by supplying electricity generated by the self-generator installed in agricultural machinery to the D / C motor, but the output is not high and the efficiency is low. Due to such concerns, there is a drawback of poor utilization.

Due to the characteristics of power transmission, mechanical power connection is mainly used for agricultural work machines such as rotary work machines, and hydraulic power is widely used for driving non-loaded devices such as the rotary blades of fertilizer spreaders. In the case of multiple operations such as rotary work, fertilizer spraying work, rotary work and sowing work, mechanical and hydraulic power transmission methods are used in combination, but as described above, power is used due to the problems of the power transmission device of the mechanical and hydraulic power. This was not efficient, the burnout of the mechanism was severe, and there was a problem of lowering the durability of the agricultural machinery itself as a power source.

In addition, since the power connection structure by the existing shaft is only a straight line, the power connection structure requires a very complex power connection structure depending on the position of the driving device, or there is a problem in that a separate prime mover is used because power connection is impossible.

Accordingly, the present invention by connecting the power shaft of the tractor to the flexible shaft to drive the spreading fan and the stirring blade, the connection of the power is easy, freely connected regardless of the position or direction of the drive shaft, safe and low noise fertilizer spreader Has the purpose of presenting.

In addition, the present invention by installing a gear box in the bottom of the hopper to connect the flexible shaft on one side, and the spreading fan shaft on the other side to drive the spreading fan, lowering the height of the hopper. The purpose of the present invention is to present a fertilizer spreader with improved workability and safety by lowering the height of fertilizer.

In addition, the present invention is to install a tube so that the flexible shaft in the hopper is installed at the horizontal height and the gearbox located on the upright of the spreading fan to minimize the rotational power transmission distance, the efficiency is good, the failure rate is low, the durability fertilizer spreader Has the purpose of presenting.

To this end, the present invention is a hopper for storing fertilizer and a spreading fan installed in the fertilizer outlet of the lower hopper and a control device for controlling the flow rate of the stirring blade and fertilizer fixed to the spreading fan shaft inside the hopper and each element described above In the fertilizer spreader is composed of a frame for supporting the link and the link connector which is formed on the upper and lower left and right sides of the frame and is installed for mounting on the tractor, the power of the tractor is transmitted by the power transmission structure, the fertilizer is sprayed,

The power transmission structure includes a gear box installed upright on the spreading fan shaft inside the hopper;

One side is fixed to the side portion of the gear box, the straight connection pipe through which the other side is fixed to the inner and outer walls of the hopper penetrating the hopper wall in line with the gear box;

A gear box and a connecting means are provided at one end of the flexible shaft through the connecting pipe, and at the other end of the flexible shaft, a fertilizer spreader driven by a flexible shaft structure having a connecting means with the power shaft is provided.

The flexible shaft assembly may be configured to be separated into a hopper outer connecting shaft and the hopper inner fixed shaft, and to combine the hopper outer connecting shaft and the hopper inner fixed shaft by a detachable structure, and the hopper inner shaft is flexible. The inner shaft end of the shaft can be implemented in a structure that is fixed to both ends of the connector by a bearing.

The present invention described above connects the power shaft connection part of the flexible shaft structure to various prime movers having a power shaft such as a tractor or a cultivator, and couples the gear box connection part to a gear box installed upright on a spreading fan inside the hopper to bevel inside the gear box. The direction of the power is changed by the gear and rotated so as to connect the power from various prime movers to drive the spreading fan.

In addition, the structure in which the flexible shaft is separated into the hopper external connecting shaft and the hopper internal fixed shaft is connected to the external hopper external connecting shaft by connecting means formed on the hopper while the internal fixed shaft of the hopper is fixedly coupled to the gear box inside the hopper. In addition, the power connection structure can be easily configured, and the noise is reduced compared to the existing mechanical connection structure, which is safer. There is a feature that can be run simultaneously without.

In addition, the present invention described above can be significantly lowered the height of the hopper mounted on the frame by the drive device for driving the spreading fan is formed in the lower portion of the inside of the hopper, thereby improving the workability of the fertilizer to improve the workability and weight Lower center of gravity is characterized by improved stability.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of the present invention, the present invention is a hopper (100) for storing the fertilizer and the spraying pan 110 and the hopper 100 is installed in the fertilizer outlet of the lower hopper 100 It is formed on the upper and lower left and right sides of the frame 160 and the frame 160 for supporting each of the elements and the adjusting device 130 for controlling the amount of the fertilizer wing 120 and the fertilizer flow fixed fixed to the fan shaft 111 It is composed of a link connector 170 is installed to be mounted on the tractor and is applied to the fertilizer spreader of the power structure to which the power of the tractor is transmitted and the fertilizer is sprayed.

In the power structure of the present invention, the gearbox 30 is installed on the upright of the spreading fan 110 in the hopper 100 to drive the spreading fan 110, and the gearbox 30 and the hopper 100 The linear connector 10 is fixed in a horizontal state on the c), and the flexible structure coupled through the connector 10 is connected to the gearbox 30 so as to be powered from the power shaft 210 of the prime mover 200. It has a structure to rotate the spreading pan 110.

The gearbox 30 is composed of a gearbox bearing 32 on which the plug 27 of the flexible shaft member is supported, and a pair of bevel gears 31, and a connecting pipe 10 at a side portion of the gearbox 30. ) And securely fit the gearbox connection plug 27 of the flexible component coupled through the connecting pipe 10 to the bevel gear 31 of the side portion of the gearbox 30, and the bevel gear of the side portion. The plug 23a of the other bevel gear 31 formed perpendicular to the 31 is installed to be vertically fitted to the groove on the spraying fan shaft 111 to convert the power of the prime mover 200 into rotational force to rotate the spraying pan 110. Has a structure.

The connecting pipe 10 is a straight pipe configured to install the shortest length of the flexible shaft in the hopper 100, one end of which is fixed to the inner and outer walls of the hopper 100 through the wall of the hopper 100, The other end is a structure fixed to the gearbox 30, the coupling portion of the hopper 100 of the connection pipe 10 is connected to the inner bracket 11 and the hopper 100 that is integrally coupled with the connection pipe 10 Composed of the outer bracket 12 to be coupled to each other by fastening the inner and outer brackets with the hopper 100 between the bolts can be more firmly coupled to the connection pipe 10 and the hopper 100.

The flexible shaft assembly 20 includes a flexible shaft 21, a power shaft connecting portion 22 formed at one end of the flexible shaft 21 to be connected to the power shaft 210 of the prime mover 200, and the flexible shaft ( 21) The gear box connecting portion 23 is formed at the other end to be connected to the bevel gear 31 in the gearbox 30 of the fertilizer spreader, and transmits the power of the prime mover 200 to the spreading fan 110. It acts to drive.

The flexible shaft 21 is a structure in which an inner shaft 21b composed of a spring is inserted into a flexible tube constituting the outer covering portion 21a as a generally known element, and torque is applied to the inner shaft 21b even when the flexible shaft 21 is flexibly bent. Delivery takes place.

The power shaft connecting portion 22 is a part coupled to the power shaft 210 of the agricultural machine such as a tractor or tiller or the output shaft of the distributor 220 connected to the power shaft 210. It may be configured in the form of a socket (22a) to be made, and may be configured in a plug 27 or a spline structure, the embodiment shown is an embodiment in which the power shaft connecting portion 22 is configured in the form of a socket (22a) The spline structure is coupled to the inner shaft (21b) end of the flexible shaft 21 and the stopper (22b) therein so that the socket 22a can be easily detached in a one-touch form.

The stopper 22b is a structure in which a pin 25 receiving spring force is coupled to a pin hole formed to pass a portion of a spline groove formed in the socket 22a at a right angle, and the pin 25 is connected to the power shaft 210. Engaging in the grooves formed in the spline limits the engagement of the socket 22a from the spline of the power shaft 210.

The gearbox connection part 23 is an element formed at one end of the flexible shaft 21 for connection with the gearbox 30. The socket 22a or the plug 27 is connected to the inner shaft 21b of the flexible shaft 21. And a release preventing ring 23b formed on the outer side of the outer covering portion 21a.

The separation prevention ring (23b) structure of the flexible shaft made of a spring can be easily separated from the outer cover (21a) by releasing the separation prevention ring (23b) and pulled at the power shaft connecting portion 22 When an abnormality occurs in the inner shaft (21b) provides an advantage that can be easily repaired.

The outer cover portion 21a end to which the release preventing ring 23b is coupled may be implemented to protect the outer cover portion 21a and combine the bearings for smooth rotation of the inner shaft 21b.

As the inner shaft 21b of the flexible shaft 21 rotates when the flexible shaft member 20 is connected to the power shaft 210, the outer covering portion 21a also turns over, and the flexible shaft member 20 includes a gearbox ( Since the bevel gear 31 of 30 may be separated, the prevention means for preventing the rotation of the outer covering portion 21a on the main body of the fertilizer spreader or the prime mover 200 to prevent it from being coupled or illustrated. As described above, after the reinforcing ring 24 is covered with the outer covering portion 21a of the flexible shaft 21 in contact with the outer bracket 12 of the connector 10, the reinforcing ring 24 and the outer bracket are pins 25. It can be implemented in a structure that is fixed with.

By inserting the flexible shaft assembly 20 into the connecting pipe 10 by the above-described structure, the plug 27 of the flexible shaft assembly 20 is coupled to the bevel gear 31 of the gearbox 30, and the flexible Power connection structure is simple and good operation by connecting the power in a state in which the shaft 21 is coupled using a rotation preventing means such as the pin 25 so as to maintain the coupled state. The connecting pipe 10 prevents the flexible shaft 21 from being bent or moved by a pressing force such as fertilizer in the hopper 100, and protects the flexible shaft 21 to perform a stable operation.

2 and 3 are separated from the hopper external connection shaft 20a and the hopper internal fixing shaft 20b by the connecting means, and the hopper external connection shaft ( 20a) shows a structure to be detachable.

In the hopper external connection shaft 20a of the embodiment, the power shaft connecting portion 22 is formed at one end of the flexible shaft 21, and the connecting end 26 is formed at the other end thereof.

The connection end 26 is composed of a socket 22a coupled to the inner shaft 21b and a protective ring to surround and protect the socket 22a at an outer side thereof, and the protective ring has a tuck groove formed therein, and an outer bracket to be described later. It is comprised so that it may be caught by the stopper 22b formed in (12).

The hopper inner fixing shaft 20b is an axis fixedly installed in the connecting pipe 10 and is integrally formed with the connecting pipe 10. To this end, the bearings are coupled to the gearbox coupling end of the connecting pipe 10 and the inner bracket 11, respectively, and the gearbox connection part 23 of the flexible shaft 21 forms a plug 27 in the gearbox. 30 is coupled to the bevel gear 31 of the side portion, and the plug 27 is formed on the inner and outer bracket engaging sides of the flexible shaft 21 to be supported by the bearing inside the inner bracket 11. In addition, the outer bracket 12 is formed with a stopper (22b) to prevent the departure of the flexible shaft 21 and to prevent walking.

The stopper 22b is caught by the jaw groove formed in the protective ring of the hopper external connection shaft 20a connection end 26 by the force of the spring to prevent the hopper external connection shaft 20a from being separated.

According to the above configuration, when the connecting end 26 of the hopper external connecting shaft 20a is inserted into the outer bracket 12, the plug 22 of the socket 22a and the hopper internal fixed shaft 20b inside the connecting end 26 are inserted. ) Is fitted to the power connection, the stopper 22b hangs the jaw groove to prevent separation of the hopper external connection shaft (20a). When the hopper external connection shaft 20a is to be separated, the stopper 22b is retracted to easily detach the stopper 22b from the jaw groove.

The jaw groove is composed of a square jaw formed in the longitudinal direction and a circular jaw formed at the end so as to have a clearance as long as the length of the jaw groove at the time of joining, thereby making the inner shaft 21b generated at the bending of the flexible. It provides an advantage that can be freely connected to the power regardless of the difference between the length of the outer covering portion 21a.

By the above-described configuration, the hopper inner fixed shaft 20b is configured such that the inner shaft 21b constituting the flexible shaft 21 is supported and protected by the connecting pipe 10 in a fixed state inside the hopper 100. The pre-installed fertilizer spreader main body, the hopper external connecting shaft (20a) is usually kept in a state separated from the fertilizer spreader and the power shaft (210) attached to the prime mover (200) such as a tractor only when the power of the fertilizer spreader is connected. By connecting the outer bracket 12 and the power connection is made easily and quickly.

In the above configuration, the spreading fan 110 shaft is supported by the bearing 180 on the frame 160 at the lower end, and is preferably supported by the bearing 190 at the bottom of the hopper 100, and the gearbox 30. Groove for connection with the plug 27 formed on the vertical of the can be formed directly on the spraying fan shaft 111 as shown in Figure 2, on the stirring blade 120 is coupled to the spraying fan shaft 111 as shown in FIG. Can be formed on.

Figure 4 is a diagram showing the state of use of the present invention mounted on a tractor can be used alone as a fertilizer spreader, as shown in (a), it can be used for multiple operations by mounting a fertilizer spreader on the rotary as shown in (b), In the PTO shaft of the tractor using a separate power distributor 220 can be used to branch the power for rotary drive and fertilizer spreader drive.

The present invention by the above configuration is a structure for driving the spreading fan by connecting the power of the tractor, such as a flexible flexible shaft, the connection of the power is simple, can be connected freely regardless of the position or direction of the drive shaft, safe and noise This has a low advantage.

In addition, the present invention can be economically configured as compared to a general hydraulic fertilizer spreader or a mechanical fertilizer spreader using a PTO shaft, and the configuration of the drive device can be lowered because the height of the hopper can be lowered because the configuration of the drive device is located inside the hopper. Discomfort is reduced and the center of gravity is lowered during spreading and movement, providing the advantage of safe fertilizer spreading.

In addition, the present invention has a merit that the flexible tube in the hopper is connected to the gearbox in the shortest distance to minimize the rotational power transmission distance is efficient and has a low failure rate.

Claims (3)

A hopper for storing fertilizer, a spreading fan installed at the fertilizer outlet at the bottom of the hopper, an agitator blade fixed to the spreading fan shaft inside the hopper, an adjusting device for controlling the flow rate of the fertilizer, and a frame for supporting each of the above elements; In the fertilizer spreader is formed in the upper and lower left and right sides of the frame and is configured to link the connector is installed for mounting on the tractor and the power of the tractor is transmitted by the power transmission structure, the fertilizer is sprayed, The power transmission structure includes a gear box installed upright on the spreading fan shaft inside the hopper; One side is fixed to the side portion of the gear box, the straight connection pipe through which the other side is fixed to the inner and outer walls of the hopper penetrating the hopper wall in line with the gear box; The fertilizer spreader characterized in that the drive shaft and the connecting means is provided at one end of the flexible shaft through the connecting pipe, the other end of the flexible shaft is composed of a flexible shaft structure is provided with a connection means with the power shaft. According to claim 1, The flexible shaft structure is separated into a hopper outer connecting shaft which can be separated from the fertilizer spreader, and a hopper inner fixed shaft that is integrally formed in the hopper connecting tube inside the hopper fixedly installed in the hopper, the outer hopper A fertilizer spreader characterized in that the connecting shaft and the hopper internal fixed shaft is configured to be coupled by a connecting means of a removable structure. According to claim 2, wherein the detachable structure of the hopper outer connecting shaft and the hopper inner fixed shaft The hopper external connection shaft is connected to the power shaft of the tractor by forming a power shaft connecting means at one end of the flexible shaft, The other end is formed of a connecting end consisting of a socket engaged with the plug of the fixed shaft inside the hopper and a protective ring surrounding the socket and formed with a jaw groove, and positioned outside the outer bracket fixed to the hopper so as to be caught by a stopper formed on the outer bracket. Configured; The internal fixed shaft of the hopper is coupled to both ends of the flexible shaft and supported by bearings on both ends of the inner tube respectively, one of the plugs is coupled to the gearbox, and the other plug is fixed to attach the connector to the hopper. Is configured to be located inside and outside the bracket When the connecting end of the hopper external connecting shaft is inserted into the outer bracket, the stopper hangs the jaw groove to prevent the hopper from being detached from the external connecting shaft, and the socket of the connecting end and the plug of the internal fixed shaft of the hopper are fitted to connect the power. Fertilizer spreader.

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