JPS6232907Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water supply device for a combine harvester, for example, in which a water supply pump is appropriately attached to the machine body of a combine harvester for wet rice fields, thereby making it possible to wash the machine body after work.

Previously, Utility Model No. 32-8636, Utility Model Number 35-25136
No. 52-59670, No. 12323, No. 12323, No. 30753, No. 30753, No. 149569, No. 149569, No. 149569, No. 149569, No. 149569
As shown in the publications No. 52-17770, there was a technique in which various parts of the threshing section were constructed to be openable and closable.

However, with the above-mentioned conventional technology, it is not possible to easily remove foreign grains when cleaning the inside of the threshing section. It takes too much time and effort to clean, and it is not easy to clean, and it also requires means such as using a tractor equipped with a car wash pump, as shown in Utility Model Application Publication No. 54-135431. There were problems such as the inability to easily improve operability.

However, the present invention connects a shaft coupling via an engagement protrusion and an engagement hole to a transmission pulley that transmits the engine output to an appropriate drive section of the threshing section, and also connects the shaft coupling to the transmission pulley through an engagement protrusion and an engagement hole, and also prevents the transmission of power by applying a load higher than the setting to the shaft coupling. The present invention is characterized in that it is configured to drive and connect a car wash pump via a safety transmission member that is disconnected.

Therefore, at the end of the harvesting work, it is easy to clean the outside of the combine machine body as well as the inside of the threshing section, and the cleaning work can be done easily without being limited to a washing place, and cleaning the inside of the threshing section can prevent the contamination of foreign grains. This can be easily prevented, and even if the drive load of the cleaning pump becomes excessive, the transmission system on the threshing section side can be prevented from being damaged, and the pump can be handled safely by preventing damage to the pump due to overload. In addition, compared to the conventional method, it is possible to simplify the cleaning work for the inside of the threshing section and to improve handling operability.

Embodiments of the present invention will be described in detail below based on the drawings. Figure 1 is a side view of a combine harvester for wet fields, and Figure 2 is a plan view of the same. In the figure, 1 is a truck frame equipped with a traveling transmission 2 at the center of the front end, and 3 is a drive sprocket on both sides of the truck frame 1. 4, a traveling crawler installed via a truck roller 5 and an idler 6; 7, a machine base fixedly supported on the track frame 1; 8, a machine mounted on the machine base 7, with a feed chain 9 stretched on the left side for handling; Torso 10
11 is a reaping section that is equipped with a cutting blade 12 and a grain culm transport mechanism 13 and connects and supports a reaping frame 14 to the front end of the machine base 7 via an elevating hydraulic cylinder; 15 is a rear surface of the threshing section 8; A cylindrical straw removal cutter section 16 fixed to the cutter section 15 is a straw collection table installed on the right side of the cutter section 15, and a straw removal cutter section 17 is connected to the end of the feed chain 9 so as to be substantially perpendicular to the feed chain 9. A straw removal chain that selectively sends waste straw to either the cutter section 15 or the convergence table 16; 18 is an L-shaped culm cover that covers the outside of the feed chain 9 and the straw removal chain 17;
Reference numeral 19 is provided at the rear right side of the threshing section 8, and a grain lifting cylinder 2 is provided.
21 is an engine section, 22 is a driver's cab, 23 is a driver's seat, and 24 is a driving operation section. At the same time, the grain culms inherited by the feed chain 9 are inserted into the threshing section 8 and threshed by the handling cylinder 10, and the grains are transferred to the grain lifting cylinder 20. It is designed to allow you to go outside more.

As shown in FIG. 3, the threshing section 8 forms a handling chamber 26 in the upper part of the machine casing 25, and the handling barrel 10 having a large number of handling teeth 27 is mounted on the shaft in the handling chamber 26. A handling port 28 is opened in the axial direction of the barrel 10. Further, a small diameter dust removal cylinder 10a is integrally formed at the rear of the handling cylinder 10, and a dust removal blade 29 is attached to the dust removal cylinder 10a. Furthermore, the handling room 26
A receiving net 30 is stretched below the receiving net 3.
A swing sorting device 31 is disposed below 0. The base end of the grain lifting tube 20 is connected to the first conveyor (not shown) below the swing sorting device 31, and the second return thrower 34 is connected to the second conveyor 33 provided in the second gutter 32. The second reduced product is returned to the handling chamber 26.

As shown in FIGS. 4 and 5, an engine 21 is attached to the conveyor shaft 35 of the second conveyor 33.
A car wash pump 38 is drivingly connected via a shaft coupling 37 to a transmission pulley 36 that transmits output from the pulley 36 having a belt groove 36a.
A shaft mounting hole 40 is opened in the boss 39 of
The pulley 36 is attached to the conveyor shaft 35 by fixing the pulley 36 to the conveyor shaft 35. Further, a plurality of engagement protrusions 42 are provided on the outer surface of the pulley 36, and an engagement hole 42 is provided on the flange portion 43 of the shaft coupling 37.
4... is opened, and the engagement hole 44 is opened in the engagement protrusion 42...
By inserting..., the shaft coupling 37 is drivingly connected to the pulley 36. Furthermore, a shaft mounting hole 45 and a split pin mounting hole 46 are opened in the shaft coupling 37, and the shaft mounting hole 45 is connected to the car wash pump 38.
The drive shaft 47 is fitted onto the drive shaft 47 of the
A split pin 49, which is a safety transmission member, is inserted into a split pin insertion hole 48 bored through the mounting hole 46, and a car wash pump 38 is drivingly connected to the shaft joint 37. The pump 38 is configured to be driven simultaneously with the second conveyor 33 when the output of the engine 21 is transmitted via the belt 50.

On the other hand, the car wash pump 38 is attached to the inner bottom surface of the paddy holder 19 via a pump holder 51, and the pump holder 51 and the paddy holder 19 are fixed to the machine frame 7a via bolts 52. The pump 38 is fixed in position on the upper surface of the pump stand 51 via bolts 53, a water suction hose 56 having a water suction filter 55 at one end is connected to its suction port 54, and a water discharge hose 59 has a water discharge nozzle 58 at one end of its discharge port 57. When the water absorbing filter 55 is immersed in a puddle in a wet field and the pump 38 is driven, water is sprayed from the water nozzle 58 to wash the vehicle body and the like.

In addition, the threshing side cover 60 that protects the outside of the transmission pulley 36, etc., is provided with a mounting window 61 for installing the car wash pump 38, and when the side cover 60 is fixed and held, the pump is pumped through the window 61. A shaft coupling 37 fixedly supported at the tip of the drive shaft 47 of 38 is introduced to connect with the transmission pulley 36.

Furthermore, a retaining hole 44 opened in the shaft coupling 37...
The diameter of the hole is formed to be considerably larger than the shaft diameter of the engaging protrusion 42 to be inserted into the hole, and the mounting window 6
1 to facilitate the installation work when installing the car wash pump 38, and to absorb misalignment between the conveyor shaft 35 and the pump drive shaft if there is misalignment. .

Furthermore, the split pin 4 is a safety transmission member.
Reference numeral 9 is configured to function as a safety device that is activated to cut off power transmission when a load exceeding a set value is applied to the drive shaft 47.

The present embodiment is constructed as described above, and when cleaning the machine after finishing work, the shaft joint 37, which is attached in advance to the tip of the drive shaft 47 of the car wash pump 38 via the cotter pin 49, is attached to the side cover. 60
The engagement hole 44 of this joint 37 is inserted into engagement with the engagement protrusion 42 of the transmission pulley 36 to be inserted into the mounting window 6 of the second conveyor shaft 35 and attached to the second conveyor shaft 35. Pump drive shaft 47
and put them in a rotationally connected state. In this state, the pump 38 and the pump stand 51 are fixed to the paddy holder 19. As a result, when the output from the engine 21 is transmitted to the second conveyor shaft 35 via the V-belt 50 and the transmission pulley 36, the pulley 36
The shaft joint 37 connected to the engine through the engagement protrusion 42 and the engagement hole 44 is also rotated at the same time, and this rotation is transmitted to the pump drive shaft 47 via the split pin 49 to drive the car wash pump 38, thereby cleaning the machine. Perform work etc. Furthermore, during cleaning work, when the pump 38 is operated under high load due to foreign matter getting caught in the pump 38 or rust, or during winter when the water inside the pump 38 freezes, the cotter pin 49 is cut off and the shaft is damaged. Power transmission between the joint 37 and the drive shaft 47 is cut off,
Pump 38 is to be safely protected.

On the other hand, when the pump 38 is installed, the pump 38 and the pulley 36 can be easily and reliably connected from the outside of the threshing side cover 60 without removing the cover 60, and the pump 38 is connected to the paddy holder 1 on the outside of the threshing side cover 60.
As a result of the structure in which the pump is fixed to the pump drive shaft 47, all attachment and detachment work is done on the outside, making the work easy.
Since the drive system is protected within the side cover 60, it is safe.

FIG. 6 shows a modified structure of the above-mentioned embodiment.
In this configuration, the transmission pulley 36 has an engagement hole 44 instead of the engagement projection 42, and the shaft coupling 3 has an engagement hole 44 instead of the engagement projection 42.
7 is constructed so that engaging protrusions 42 are formed in place of the engaging holes 44, respectively, and the same functions and effects as in the above-mentioned embodiment are achieved. Omitted.

Further, the mounting shaft of the pulley 36 is the conveyor shaft 3.
It is not limited to 5.

As is clear from the above embodiments, the present invention provides an engagement protrusion 42 and an engagement hole 44 on the transmission pulley 36 for transmitting the output of the engine 21 to an appropriate drive section of the threshing section 8.
The car wash pump 38 is connected to the car wash pump 38 via a safety transmission member 49 that connects the shaft joint 37 through the shaft joint 37 and disconnects power transmission if the shaft joint 37 is subjected to a load exceeding a set value.
It is configured to drive and connect the combine harvester and the inside of the threshing section 8 as well as the outside of the combine machine at the end of harvesting work, and the cleaning work can be easily performed without being limited to a washing place. By cleaning the inside of the threshing section 8, it is possible to easily prevent foreign grains from entering the threshing section 8.
Even if the driving load of the threshing section 8 becomes excessive, the transmission system on the side of the threshing section 8 can be prevented from being damaged, and the pump 38 can also be prevented from being damaged due to overload, making it possible to handle it safely, compared to conventional methods. This provides practical effects such as simplifying the cleaning work of the inside of the threshing section 8 and improving handling operability.

[Brief explanation of drawings]

Figure 1 is an overall side view of a combine harvester for wet fields, Figure 2
The figure is a plan view of the same, Fig. 3 is a vertical cross-sectional explanatory view of the main part, Fig. 4 is an enlarged explanatory view of the main part, Fig. 5 is an external perspective view of the main part, and Fig. 6 shows another modified structure. It is an explanatory diagram. 21...Engine, 36...Transmission pulley, 37
... Shaft coupling, 38 ... Car wash pump, 42 ... Engagement protrusion, 44 ... Engagement hole, 49 ... Safety transmission member (split pin).

Claims (1)

[Scope of utility model registration request] A shaft coupling 37 is connected to a transmission pulley 36 that transmits the output of the engine 21 to an appropriate drive section of the threshing section 8 via an engagement protrusion 42 and an engagement hole 44,
A water supply device for a combine harvester, characterized in that it is configured to drive and connect a car wash pump 38 via a safety transmission member 49 that disconnects power transmission when a load exceeding a set value is applied to the shaft joint 37.