JPH0547566Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a receiving net fixing device for a threshing machine mounted on a combine harvester or the like.

Prior Art A receiving net of a threshing machine is installed along the outer periphery of the handling barrel and close to the handling teeth, and is used to collect grains (including relatively small ears of grain, etc.) from the materials threshed in the handling chamber. ) leaks into the sorting room, but because the mesh is relatively small, it is easy for straw waste, ear scraps, etc. to get caught in the mesh. It is easy to get clogged, and when it becomes clogged, it is necessary to remove the receiving net from the aircraft body and clean it. Therefore, in recent years, there have been provided devices in which the receiving net is removably inserted in the circumferential direction of the handling barrel so that it can be easily attached and detached.

Problems to be solved by the invention However, if the catch net is constructed in a simple detachable manner without using bolts or the like, it is undeniable that the catch net will be incompletely fixed. Moreover,
Since the receiving net is constantly subjected to loads in the circumferential and radial directions of the handling cylinder due to the material being handled that stays in the handling chamber during work, if the receiving net is not fixed properly, the handling will have an important effect on the sloughing action. There are problems such as the spacing between the teeth and the receiving net changes, which not only reduces the shedding performance, but also causes the receiving net to rattle, causing noise and vibration.
In particular, in the case of a structure in which a straw-cutting sickle is integrally fixed to a receiving net, the load on the receiving net increases and the above-mentioned disadvantages become noticeable, so countermeasures are required.

Means to Solve the Problems Therefore, the present invention involves engaging the back end of a receiving net integrally provided with a straw-cutting sickle with the handling chamber frame, and drawing the receiving net in the circumferential direction of the handling barrel. In a lower-handling type threshing machine that can be freely attached, a holding device is provided on both sides of the tip side of the receiving net that can be manually switched between a state of pressing the receiving net in the anti-extracting direction and a state of not interfering with the receiving net. Each of the pressers is pivotally supported on a support frame provided on the receiving net extracting side of the chamber, and both of the pressers are interlocked and connected via a connecting device, and a tightening device is provided between the both pressers for crimping the receiving net to the support frame side. The above-mentioned problems are attempted to be solved by providing the tool on the support frame.

Operation To install the receiving net, insert the receiving net from above the handling chamber in the circumferential direction of the handling barrel, and engage the inner end of the receiving net with the handling chamber frame. Then, when the holding device and the clamping device provided on the support frame are operated to the fixed side, both sides of the leading end of the catch net are pressed down from above by the holding devices, and the movement of the catch net in the circumferential direction of the handling barrel is restricted. The catch net is crimped onto the support frame side by the fasteners and movement in the radial direction of the handling cylinder is restricted, so the catch net is securely fixed.

Embodiment The drawing shows a bottom-handling type threshing machine, in which a sorting room A is provided below a receiving net 3 in a handling chamber 2 in which a handling drum 1 is pivotally supported. 1a is a handling tooth. 4 is a swinging flow plate installed swingably in the sorting chamber A,
5 is a karakinou. 6 is the first spiral, 7 is the second spiral,
8 is a suction fan, 9 and 10 are corrugated plates, and 11 is a corrugated plate 9.
12 is a fine particle leakage body that is integrated with the corrugated plate 10.

By the way, the corrugated plate 9, 10 portion of the oscillating flow plate 4 is the sixth wave plate.
As shown in the figure, it is detachably attached to the oscillating flow plate 4 with thumbscrews 13, and the corrugated plates 9, 1
As shown in Figure 8, a coating film C is applied by spraying or coating, and this film completely closes small gaps such as butt parts and partitions, preventing debris, awns, etc. from getting stuck in the gaps. In addition to preventing dripping, when threshing grains of different varieties, remove the corrugated plate part from the machine, peel off the coating c, and create a new coating c to prevent other varieties from being mixed in. Care has been taken to ensure that this does not occur.

The one shown in FIG. 7 has a leaf spring 14 protruding upward from the starting end side of the corrugated sheet 10, and obtains a wind blowing effect by the rocking or vibration of the leaf spring 14 accompanying the rocking of the corrugated sheet 10. The pressure air outlets a and b of the winnowing machine 5 are provided at two locations, upper and lower, to further improve the sorting performance.

14a is a rubber plate.

Now, the mounting frame 3a of the receiving net 3 is shown in Figures 1 and 3.
As shown in the figure, a straw-cutting sickle 15 is integrally fixed via a bolt 16, and a rail d is fixed on the fuselage side.
(Refer to Fig. 7) It is fitted in the circumferential direction of the handling barrel 1 so as to be freely removable, and its rear end is removably engaged with the handling chamber frame 2' via a pin 3b. . 17 is a support frame provided on the extraction side of the receiving net 3;
The handling chamber front side plate 2a and the handling chamber rear side plate 2b are integrally connected.

Reference numeral 18 denotes a presser tool located on both front and back sides of the receiving net 3 (left and right sides in FIG. 1), which is pivotably supported on the upper surface of the support frame 17 via a support shaft 18' so as to be rotatable manually. The pressers 18 are interlocked and connected by a connector 19 and a pivot pin 20, and by tilting a lever 21 fixed to one presser 18, both pressers 18 move the receiving net 3 in the anti-extraction direction. The fixed state (the state shown in FIG. 1) in which the net is held down and the non-interfering state with respect to the receiving net are simultaneously switched in conjunction with each other. A mounting plate 22 is fixed to the upper surface of the support frame 17, located between the two pressers 18, and a fastener 23 is pivotally supported on the mounting plate 22 via a fulcrum shaft 24 so as to be freely rotatable in the vertical direction. When the fastener 23 is rotated downward by hand as shown in FIG. 1, the receiving net 3 is crimped and fixed to the support frame 17 side.

23a is an operating lever of the fastener 23, and 25 is a stopper fixed to the receiving net attachment frame 3a. 26,2
7 is a lock nut, 28 is a pin for temporarily holding the receiving net protruding from the support frame 17, and 29 is a pin hole.

In the figure, 30 is a cylinder cover that can be opened and closed, 31 is a feed chain, 32 is a straw removal chain, and 33 is a cutter.

Next, to explain the function of the present invention, the receiving net 3
The straw-cutting sickle 15 is integrally provided in the , and since both can be attached and detached in the circumferential direction of the handling cylinder 1 , there is an advantage that maintenance of both becomes easier. Animals stuck in the handling room are using a straw-cutting sickle 15
Due to the contact with the receiving net 3, a large force is applied to the receiving net 3 in the direction of extracting the receiving net 3 along the circumferential direction of the handling trunk, and the receiving net 3 is attempted to be lifted. However, in the present invention, the holding devices 18, 18 provided on both sides of the tip side of the receiving net 3
Since this force is reliably received, the receiving net 3 is prevented from moving in the circumferential direction of the handling drum. Furthermore, during the threshing operation, a force is applied to the receiving net 3 in the radial direction of the handling barrel, but the receiving net mounting frame 3a is securely clamped and fixed by being crimped to the support frame 17 by the fastener 23. Since this force is received by the tightening tool 23, the receiving net 3 may move in the radial direction of the handling cylinder, causing a change in the distance between the handling cylinder 1 and the receiving net 3, or the receiving net 3 may rattle, causing noise and vibration. This will prevent it from becoming a cause. Therefore, the spacing between the receiving net 3 and the handling teeth 1a, which is extremely important for grain shedding performance, does not change, and the spacing between the receiving net 3 and the handling teeth 1a is always maintained at an appropriate distance. Since the grains sag, the shedding performance is maintained well.

In addition, when removing the receiving net 3 from the machine body for cleaning the receiving net 3, etc., loosen the lock nuts 26, 27, etc., rotate the pressers 18, 18 to switch to a non-interfering state with respect to the receiving net 3, and tighten them. The fixing of the receiving net 3 is released by rotating the tool 23 upward. Then, remove the temporary holding pin 28 from the pin hole 29 and remove the receiving net 3.
is extracted in the circumferential direction of the handling cylinder 1. When setting up the receiving network 3, the above procedure is reversed.

When attaching and detaching the receiving net 3, both pressers 18, 18
are interlocked and connected by the connecting tool 19, so both presser tools 18 and 18 can be connected by simply tilting the lever 21.
can be simultaneously transformed into a locked position or an unlocked position with a single touch, and attachment/detachment and fixing work of the receiving net 3 can be easily and reliably performed. Therefore,
The efficiency of cleaning when the receiving net 3 becomes clogged and inspection and maintenance work inside the handling room 2 is further improved. Therefore, in a threshing machine in which the receiving net 3 is removably installed in the circumferential direction to simplify the cleaning of the receiving net, etc., and the receiving net 3 is easily attached and detached, the ideal receiving net 3 is This serves as a fixing device.

Effects of the invention As described above, the present invention allows the back end of the receiving net integrally provided with a straw-cutting sickle to engage with the handling chamber frame, and allows the receiving net to be freely extracted in the circumferential direction of the handling barrel. In the lower-handling type threshing machine, the handler is provided with a presser on both sides of the tip side of the receiving net, which can be rotated manually between a state of pressing the receiving net in the anti-extracting direction and a state of not interfering with the receiving net. a clamping device which is pivotally supported on a support frame provided on the receiving net extracting side, and interlockingly connects both of the pressers via a connecting device, and which is located between the both pressers and presses the receiving net to the support frame side. Since the receiving net and the straw cutting blade can be attached and removed together in the circumferential direction of the handling drum, maintenance of both can be carried out well. Although this is an under-handling type threshing machine where the catch net is subjected to a large load in the extracting direction along the circumferential direction of the handling barrel, this load is reliably absorbed by the pressers installed on both sides of the tip of the catch net. At the same time, the force applied to the catch net in the radial direction of the handling barrel can also be absorbed by the tightening device, making it a rational and strong catch net fixing device as a whole. It is possible to eliminate inconveniences such as a change in the proper spacing between the net and the handling teeth, which adversely affects the shedding action, or the receiving net rattling, causing noise and vibration. In addition, each holding device that holds and fixes the receiving net in the anti-extracting direction can be simultaneously switched to a locking position or a non-locking position with a single touch, making it easy to attach, detach, and fix the receiving net without using fixing bolts as in the past. Moreover, it is an extremely excellent device for fixing a receiving net, which has the effect of being able to perform the fixing reliably, and which can be freely inserted and inserted in the circumferential direction.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the main parts, Figure 2 is a plan view showing the interlocking structure of the presser, Figure 3 is a partially cutaway front view of the main parts, Figure 4 is a front view of the handling room, and Figure 5. Fig. 6 is a perspective view of the sorting section, and Fig. 7 is a threshing machine equipped with two pressure-air outlets on the top and bottom of the winnowing machine and an air blower attached to the starting end of the corrugated plate. FIG. 8 is a partially cutaway longitudinal side view of the machine, and FIG. 8 is a longitudinal sectional front view showing a state in which a coating film is applied to a corrugated plate. In the figure, 1 is the handling cylinder, 2 is the handling room, 2' is the handling room frame, and 3
is a receiving net, 15 is a straw cutting sickle, 17 is a support frame, 18,1
8 is a presser, 19 is a connecting tool, and 23 is a tightening tool.

Claims (1)

[Scope of utility model registration request] In a bottom-handling type threshing machine in which the back end of a receiving net integrally provided with a straw-cutting sickle is engaged with a handling chamber frame, and the receiving net is detachably installed in the circumferential direction of the handling barrel, On both sides of the tip side of the receiving net, pressers that can be manually switched between a state of pressing the receiving net in the anti-extraction direction and a state of not interfering with the receiving net are attached to support frames provided on the receiving net extraction side of the handling room, respectively. The threshing device is characterized in that the support frame is provided with a fastener that is pivotally supported and that both pressers are interlocked and connected via a connecting device, and that is located between the both pressers and that presses the receiving net to the support frame side. Machine receiving net fixing device.