JPS5913776Y2 - Combine harvester grain culm tip conveyor - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ear tip conveying device that supports and conveys the tip of the harvested husk when conveying it to a foot chain of a threshing device.

Generally, the culm harvested by a self-sharpening combine harvester is conveyed one after another while supporting the tip of the culm while the base of the stock is held between a cheno and a lever. The device for conveying the ears while conveying the tips is configured such that conveying claws provided at regular intervals on an endless chino are protruded into the conveying path of the culm to convey the tips. If an excessive load is applied to the tip conveyor due to concentration or stagnation of the culm or tip,
The driving of the tip conveying device must be stopped immediately so that the conveying claws of the device are not damaged.

In the present invention, this type of tip conveying device is assembled in advance on a support frame, and the transmission device from the speed change mechanism of the machine body is built into the case so that these can be attached freely. In addition to making it easier to assemble and disassemble the unit, the drive shaft of the tip conveyor and the power transmission chain are connected with a safety pin that disconnects in the event of an excessive load, thereby preventing excessive loads. In order to prevent damage, cut safety pins can be easily replaced.

Next, we will explain the drawing of an embodiment in which the present invention is applied to a four-row harvester. In the drawing, 1 is a pair of running rollers 2, 2, the rear of which is pivoted by a pin 3, and the front part of which is raised and lowered by a hydraulic cylinder 4. A threshing device 6 having a foot chain 5 is provided on the upper surface of the machine.

Reference numeral 7 denotes a frame protruding from the front part of the machine body 1, and a plurality of weeding bodies 8 and a reaping device 9 are installed at the lower end of the frame, and a plurality of culm pulling devices are installed at the front. ,
Lower conveyance device 11 and two secondary ear tip conveyance devices 12 to be described later
．． 12' and a vertical transport device 14 for transporting the subjects from the lower transport device 11 to the foot chain 5.

The lower conveyance device 11 has two sprockets 15, 1
A conveying cheno 17, which is wound between three sprockets 18, 19, and 20. The transfer star wheel 22 located at the end of the chain 17.21 and the cutting culm provided for each reaping row at the starting end of both chains 17, 21 are transferred to the chain 17, 21 and its pinning rod 23.2. and a scraping star wheel 25, 26, 27° 28, which is sent between < and 25, 26, and 27° 28, and the one subhead conveying device 12 is provided along a conveying retreat part 29 formed at the upper part of one of the conveying chinos 17,
The other subhead conveying device 12' is a conveying passage 30 formed above the diagonal feeding section 21' in the other conveying chino 21.
It is located along the

13 is a cross-feeding section 2 in the other conveyance cheno 21;
The main tip conveying device 13 is constructed as shown in FIGS. 5 to 10, and includes a conveying path 31 formed in the upper part of the main tip conveying device 1" and a main tip conveying device provided along the vertical conveying device 14.

In other words, in this figure, 32 is a support frame in the shape of a thousand-sided substantially triangular shape, and sprockets are provided at its three corners.) 33.3
4.35, an endless chino 36 is wound around the endless chino 36, and the endless chino 36 is provided with a large number of ears 57I at regular intervals, and each ear piece 54 has guide pieces 55' on both upper and lower surfaces of the base end.
A conveyor claw 55 integrally protruding from the pin 5 rotates freely.
6 It is fixed and installed.

The conveyance claws 55 are provided on the side surface of the frame 32 on the shell culm conveyance path 31 side and on the side surface on the vertical conveyance device 14 side.
The guide rail 57. into which the guide pieces 55', 55'' fit.
58, 59, and 60 respectively, and guide pieces 55', 55 of the conveyance claw 55 are provided above and below the intermediate sprocket y.
'Guide wheels 61 and 62 with which the back surface abuts are provided, and the conveying claw 5
5 is placed in an upright state along the culm conveyance path along the passage 31 and the vertical conveyance device 14, and above and below the starting end sprocket 35 are guide pieces 55', 55'' of the conveyance pawl 55, and guide wheels 63 contacting the back surface thereof. .64, the upper guide ring 63 is fixed to the sprocket 35, while the lower guide ring 64 is formed into a substantially semicircular fan shape in plan and is rotatably provided on the shaft 65 of the sprocket 35. The ring 64 is biased against the starting end of the guide rail 57 by a spring 65'.

Reference numeral 66 indicates a cover facing the frame 32, and 67 indicates a push bolt of the support bracket 40 at the starting end sprocket 35.

In this case, the upper drive sprocket 33 is connected to the frame 32.
The lower intermediate sprocket 34 is rotatably attached to a shaft 38 protruding from the upper surface of the frame 32, and the lower starting end sprocket 35 supports a bifurcated support rod 39 to which it is attached. Bolt 4 to frame 32
It is slidably fitted and supported by a bracket 40 which is adjustable at 1 and 41, and is biased by a spring 42 in a direction to tension the chino 36.

In this way, the sprocket 33 is mounted on the support frame 32.
34, 35, the ear tip conveying device 13 assembled with the endless chino 36 and the like is configured to be attached to the transmission mechanism 45 via the chino case 48 at 33 locations of the upper drive sprocket.

That is, a mounting piece 43 fixed to the lower end of this frame 32
The lower part of the frame 32 is supported by bolts 44 to a support 43' attached to the frame 7 of the body 1, while the upper part of the frame 32 is attached to a transmission mechanism 45 attached to the body 1 concentrically with its output shaft 46. A bolt 49 is detachably attached to the tip of the cheno case 48 secured by the bolt 47 at a position coaxial with the drive shaft 37.
A chain 52 transmits power within a chain case 48 between a sprocket 50 that is stopped and supported and fitted to the output shaft 46 of the transmission mechanism 45 and a sprocket 51 that is rotatably fitted to the drive shaft 37. 51 boss 51' protrudes outside the case, and both of them are attached to the case 4.
The power is transmitted to the drive shaft 37 by connecting them with a safety pin 53 which is removably inserted through these outside of the drive shaft 8.

In this configuration, raking wheels 25, 26 and 27,
The culms cut in front of 28 are sent to conveyance passages 29 and 30, respectively, and the roots of the culms are transferred to Cheno 17 and its clamping rod 23.
, and was held between the chino 21 and the clamping rod 24 and conveyed to the cross-feeding section 21'', and the tip portion was supported by the auxiliary tip conveying device 12.12' disposed along the passage 29.30. The grains are fed along the tip conveying path 31 above the transverse feeding section 21'', supported by the conveying claws 55 of the tip conveying device 13, and then merged into a line at the inheritance star wheel 22. Then, the grain is transferred to the succeeding conveyance device 14, and the threshing device 6 is transferred to the threshing device 6 while the ear portion is supported by the ear tip conveyance device 13.
It will be transported to Feet Chain 5.

In this case, the tip conveying device 13 is constructed by winding an endless chino 36 having a large number of conveying pawls 55 around sprockets 33, 34, and 35 at three corners of a support frame 32 having a substantially triangular planar shape, and is formed into a unit. However, unlike the conventional method of assembling the endless conveyor chain by wrapping it around sprockets attached to separate locations, the machine can be assembled by itself before it is attached to the combine harvester's designated location.
In addition, this support frame 32 supports the transmission mechanism 4 attached to the aircraft body 1.
Since it is detachably attached to the power transmission cheno case 48 protruding from 5, the tip conveying device 13 can be incorporated into the combine harvester or removed from the combine harvester.

Moreover, the present invention has a configuration in which the cheno case 48 of the tip conveying device 13 is
The drive shaft 37 of the sprocket 33 is attached to the
is rotatably inserted into the sprocket 51 driven by the chain from the power source side in the chain case Tsukuda, while the boss 51' of the sprocket 51 of the chain case 48
The drive shaft 37 fitted therein protrudes outside the cheno case 48, and both are connected by a safety pin 53 which is removably inserted through them outside the case 48. 53 can be removed, and the power transmission parts can be connected by inserting the safety pin 53, making it extremely easy to attach and detach the power transmission to and from the cheno case 48 of the tip conveying device 13. be.

Moreover, if an excessive load is applied to the tip conveying device 13, the safety pin 53 can break and prevent the tip conveying device 13 from being damaged. Since the safety pins 53 are connected together, the safety pin 53 can be replaced after cutting without disassembling the chain case Tsukuda.
When assembling the support frame 32 into the chain case 48, the drive shaft 37 protruding from the support frame 32 is inserted into the sprocket 51 in the chain case holder and protrudes to the outside. It can be done automatically.

Therefore, according to the present invention, the power transmission section can be easily connected and separated from the chino case 48 side to the ear tip conveying device 13 by inserting and removing the safety pin 53, and the tip conveying device 13
Coupled with the fact that the mounting position is automatically determined by fitting the drive shaft 37 into the sprocket 51 in the cheno case 48, the tip conveying device 13 can be attached and removed from the cheno case 48 extremely easily.

As a result, by unitizing the tip conveying device, it is possible to efficiently assemble the device itself, assemble it to the combine, and disassemble it from the combine, reducing costs, and making adjustment, inspection, and repair of the tip conveying device extremely easy. In addition, according to the present invention, damage to the tip conveying device due to excessive load during culm conveyance can be reliably prevented by cutting the safety pin, ensuring safety.Furthermore, the safety pin can be replaced after cutting. It has the effect of being simple and quick.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the combine harvester, FIG. 2 is a plan view of the combine, FIG. 3 is a plan view of the lower conveying device, and FIG. View plan,
Fig. 5 is a partially cutaway enlarged plan view of the tip conveying device, Fig. 6 is a sectional view taken along VI-Vl in Fig. 5, and Fig. 7 is a Vll line in Fig. 5.
-VII sectional view, Fig. 8 is a sectional view taken from ■-■ in Fig. 5, Fig. 9 is a view IX-IX in Fig. 6, and Fig. 10 is an
-X cross-sectional view. 1... Machine body, 2, 2... Running roller, 6... Threshing device, 5... Foot chain, 9... Reaping Device, 13... Tip conveyor, 36... Cheno, 33.34°3
5... Sprocket, 32... Support frame, 37... Drive shaft, 45... Speed change mechanism, 46... Output shaft, 48 ...Cheno case, 52...Cheno, 55...
・Transport claw, 51...Sprocket, 51'...
...Boss, 53...Safety pin.

Claims (1)

[Scope of utility model registration request] A plurality of conveyor claws 55 are provided on the endless chino 36 along the route for conveying the harvested husks to the foot chain of the threshing device, and these are attached to a plurality of sprockets provided on the support frame 32).33.34.35 Wrap this support frame,
The drive shaft 37 of the sprocket 33 at the attachment point of the support frame 32 to the chain case is removably attached to the chain case 48 protruding from the transmission mechanism 45 on the body side, and the drive shaft 37 of the sprocket 33 is connected to the drive shaft 37 from the transmission mechanism 45 within the chain case 48. The boss 51' of the sprocket 51 and the drive shaft 37 are inserted into the transmission sprocket 51 so as to be rotatable.
This is a combine harvester's husk tip carrying device, in which a safety pin 53 is removably inserted into the chain case and drive shaft 37 to connect the two outside the chain case.