JPH064683Y2 - Attachment / detachment device of threshing machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a device for attaching and detaching a catching net that covers the peripheral surface of the handling cylinder to the handling cylinder in a threshing machine.

[Prior Art] In a thresher having a configuration in which a drum having a large number of teeth and a net that covers the peripheral surface of the drum are used, the net is used as a drum when replacing or cleaning the net. By locking and turning the handle by hand,
A device which can be attached and detached is disclosed in, for example, JP-A-61-161.
It is described in Japanese Patent No. 43935.

[Problems to be solved by the invention]

By the way, in the conventional one, a member for connecting to the handle teeth of the handle cylinder is rotatably attached to one end of the receiving net, and when the receiving net is attached or detached, this member is simply engaged with the handle teeth. Since it is only stopped, the above-mentioned members are likely to come off during the process of rotating the handling cylinder and moving the receiving net along its peripheral surface, and in such a case not only hindering the attachment and detachment of the receiving net, but especially the receiving net. If it comes off in the middle of mounting, there is a possibility that the subsequent work may be disabled.

In view of such problems of the conventional ones, the present invention does not inadvertently disengage the hooks of the receiving net on the handle teeth when attaching and detaching the receiving net, and the receiving net using the handle barrel It is an object of the present invention to provide an attachment / detachment device for a net in a thresher, which not only allows smooth attachment / detachment of the thresher at all times but also causes no abnormal noise due to the vibration of the hook during operation of the thresher. .

[Means for solving problems]

The present invention has the following technical means for achieving the object.

That is, an attachment / detachment device for a net in a thresher according to the present invention comprises a handling cylinder having a large number of handling teeth, and a receiving net that covers the peripheral surface of the handling cylinder. In the thresher of a configuration to be fixedly installed, a hook for engaging with the handling tooth of the handling cylinder at the fall position in the direction of the handling barrel is provided on the upper end of the receiving net, and the hook is provided on the opposite side of the handling barrel. An urging mechanism for automatically restoring the erected position to the erected position is provided, and a mechanism for locking the hook at the erected position and the fall position is also provided.

[Action]

In the threshing machine according to the present invention, the peripheral surface of the handling cylinder is covered with the receiving net, but in order to mount the receiving mesh, place it at a position along the peripheral surface of the handling cylinder and place the hook on the handling cylinder. Tilt it to the side and lock it on the tooth. Then, when the handling cylinder is turned in the direction in which the receiving net is inserted, the receiving net moves along the peripheral surface of the handling cylinder and is placed in a predetermined position. Therefore, the lower and upper edges of the net are fixed, and the hook is raised on the side opposite to the handling cylinder. To remove the installed net, tilt the hook toward the handle and lock it to the tooth, remove the lower and upper edges of the net from the fixed state, and then attach the handle to the net. When turned in the opposite direction to the time, the catch net is pulled out along the peripheral surface of the handle cylinder, so raise the hook on the side opposite to the handle cylinder, remove it from the handle teeth, and move the catch net outside the handle cylinder room. can do.

As described above, the hooks are locked in their respective positions in the fall position where the hooks are laid down on the handle barrel side and the standing position where the hooks are raised on the side opposite the handle barrels when attaching and detaching the receiving net. It does not come off accidentally when locked. During operation of the threshing machine, the hook is automatically restored to the standing position by the urging mechanism, so that the hook does not vibrate to make an abnormal sound or fall to the handling cylinder side.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

In FIG. 1 to FIG. 5, reference numeral 1 indicates a threshing chamber of a thresher, and 2
Is a handling cylinder, and a part of the peripheral surface of the handling cylinder 2 is covered with a receiving net 3. The handle barrel 2 has a large number of handle teeth 4. The receiving net 3 is mounted along the peripheral surface of the handling body 2 with its both side edges guided by the guide supporting rails 5, 5.
Moreover, the lower end edge thereof is fixed to the lower wall 6 of the handling barrel by a pin 7, and the upper end edge thereof is fixed to the frame 8 by a locking mechanism 9. A straw cutting blade 10 is attached to the upper end side of the receiving net 3, and 11 is a mounting frame thereof, and a hook 12 is provided on a flat surface portion of the mounting frame 11 which is bent on the side opposite to the handling cylinder 2. It is equipped. That is, the pivot pins 14, 13 are attached to the brackets 13, 13 fixedly erected on the flat surface of the mounting frame 11.
A lever 16 is fixed between the arms 15 and 15 pivotably supported by the handle 2 on the side opposite to the handle 2, and the hook 12 is integrally attached to the lever 16. Has been. Therefore, the hook 12 can be tilted up and down between a tilted position in which the pivot pins 14, 14 are tilted toward the handling cylinder 2 side and a standing position in which the hook 12 is raised on the opposite side. Also, the above-mentioned pivot pin 14,1
4 is slidable in the axial direction with respect to the brackets 13, 13, and a spring 17 is fitted into one of the pivotally supporting pins 14, and the spring 17 pulls the lever 16 in one direction. In addition, a biasing mechanism that automatically restores to the standing side is configured. 18 is a locking pin, and this locking pin 18
Is fixed to the attachment frame 11, and when the hook 12 is attached and the lever 16 is raised and lowered, one arm 15 alternately crosses the locking pin 18 against the elastic force of the spring 17 in the axial direction. 12 is locked in the standing position and the fall position, respectively.

In order to mount the receiving net 3 in the handling barrel chamber 1 in the above-described structure, the receiving net 3 is placed at a position along the peripheral surface of the handling barrel 2 and the lever 16 is tilted to the handling barrel 2 side. The hook 12 to handle the tooth 4
Lock on. Then, when the handling cylinder 2 is manually rotated in the direction in which the receiving net 3 is inserted, the receiving net 3 is guided to the guide support rails 5 and moved to a predetermined position along the peripheral surface of the handling cylinder 2. Therefore, the lower end edge of the receiving net 3 is fixed to the lower wall 6 of the handle barrel chamber 1 by the pin 7, the upper end edge thereof is fixed to the frame 8 by the locking mechanism 9, and the hook 12 is removed from the handle tooth 4 to handle the handle barrel. Raise on the opposite side of 2. In order to remove the receiving net 3 mounted on the handling barrel chamber 1, the hook 12 is tilted to the handling barrel 2 side and locked to the handling tooth 4, and then the pin 7 is removed to unlock the locking mechanism 9. To do. When the handle cylinder 2 is turned by hand in the opposite direction to that when it is attached, the net 3 is pulled out along the peripheral surface of the handle cylinder 2. Therefore, the hook 12 is removed from the handle teeth 4 and the catch net 3 is removed. Move to room 1.

By the way, when the hook 12 is locked to the handle teeth 4 of the handle body 2 and the receiving net 3 is attached and detached in this way, when the hook 12 is locked to the handle teeth 4, the hook 12 is locked in that state by the lock pin 18. Therefore, the hook 12 is not accidentally removed during the process of rotating the handling cylinder 2 to attach / detach the receiving net 3, and therefore the operation can be always performed smoothly. Further, even when the hook 12 is raised, it is locked by the locking pin 18,
During operation of the threshing machine, the hook 12 does not vibrate and make an abnormal sound, and the threshing work is not hindered by falling down to the handling barrel 2 side.

FIG. 6 shows an example of a thresher according to the present invention.
This threshing machine is equipped with a transmission 19 for the handling cylinder 2, and 20 is its transmission lever. As shown in FIGS. 7 and 8, the speed change lever 20 is rotatable about a fulcrum 21, 22 is a speed change gear, 23 is a speed change shifter shaft,
24 is a shift shifter, the shift shifter shaft 23 and the shift gear 22 are interlocked by the shift shifter 24, and the shift shifter shaft 23 moves in the axial direction by the rotation operation of the shift lever 20.
The transmission gear 22 is adapted to be shifted. A plurality of grooves 25 for stepwise restricting the axial movement position thereof are formed at the tip of the shift shifter shaft 23, and a position restricting mechanism 26 is provided for the plurality of grooves 25. . The position restricting mechanism 26 includes a ball 27 that engages with the groove 25, a spring 28 that presses the ball 27, and a pressing adjustment screw 29.The pressing adjustment screw 29 has a fitting recess for the spring 28 and is provided on the peripheral surface of the knob portion. Is formed with knurls to prevent slipping. In FIG. 6, 30 is a grain stalk supply chain, 31 is the first spiral, 32 is the second spiral, 33 is Kara, 34 is a swing sorting device, 35 is a dust chamber, 36 is a straw chain, 37 Indicates a straw shredder.

In the transmission 19, the shift lever shaft 20 moves the shift shifter shaft 23 in the axial direction, and the shift gear 22 operates via the shift shifter 24 to shift the handle cylinder 2. By using the pressing adjustment screw 29 of 26, the responsiveness of the operation of the gear shift lever 20 can be appropriately adjusted, and the gear shift operability can be improved. Also, press adjustment screw
By strongly tightening 29, the shift shifter shaft 23 can be fixed in that position, so that even if the handling cylinder 2 is overloaded, the transmission of power in the transmission 19 is interrupted, that is, so-called shift shift. Can be prevented in advance.

[Effect of device]

The present invention, as described above, includes a handle cylinder having a large number of handle teeth,
In a thresher having a configuration in which the lower surface and the upper edge are fixed and attached to the threshing machine, which is provided with a receiving net that covers the peripheral surface of the handling drum, at the upper end of the above-mentioned receiving net, in a laid-down position tilted toward the handling barrel. In addition to providing a hook that locks to the handle teeth of the handle barrel,
Since a biasing mechanism that automatically restores the standing position raised to the side opposite to the handling cylinder is provided, and a mechanism that locks the hook in the standing position and the fall position is provided, the hook of the receiving net can be attached and detached when attaching and detaching the receiving net. Once it is laid on the handling tooth as the lying position, it does not come off accidentally, and the receiving net using the handling cylinder can be always smoothly attached and detached. While the thresher is in operation, the biasing mechanism automatically restores the hook to the standing position, so the hook vibrates and makes an abnormal sound,
The effect is that it does not fall down to the handling barrel side and hinders threshing work.

[Brief description of drawings]

FIG. 1 shows an embodiment of a device for attaching and detaching a net in a thresher according to the present invention. FIG. 1 is a vertical sectional front view of a handling barrel portion of the thresher, and FIG. A side view, FIG. 3 is a front view showing a hook and its peripheral mechanism, FIG. 4 is a side view of the same as above, FIG. 5 is a perspective view of the same as above, FIG. 6 is a longitudinal side view of a hull of a thresher, and FIG. FIG. 8 is a vertical sectional front view showing a portion of the transmission of the case, and FIG. 8 is an enlarged vertical sectional side view of a main part of the same. DESCRIPTION OF SYMBOLS 1 ... Handle barrel chamber, 2 ... Handle barrel, 3 ... Receptor net, 4 ... Handle teeth, 5,5 ... Guide support rails, 6 ... Lower wall of handle barrel chamber, 7 ... Pin, 8 ... Frame, 9 ... Locking Mechanism, 10 ... Straw cutting blade, 11 ... Its mounting frame, 12 ... Hook, 13,13 ... Bracket, 14,14 ... Pivot pin, 15,15 ... Arm, 16 ... Lever, 17 ... Spring, 18
… Locking pin, 19… Transmission, 20… Shift lever

Claims (1)

[Scope of utility model registration request] 1. A thresher having a structure in which a handling cylinder having a large number of handling teeth and a receiving net for covering the peripheral surface of the handling cylinder are provided, and the lower end and the upper end of the receiving net are fixed and attached. A hook is provided at the upper end of the receiving net that locks to the handle teeth of the handle in the fall position of the handle, and the hook is automatically biased to the standing position raised on the opposite side of the handle. An apparatus for attaching and detaching a net in a thresher, comprising a mechanism and a mechanism for locking the hook at the standing position and the falling position, respectively.