JPH0541640Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a pair of releasable locking tools for fixing the straw cutting blade frame at the assembly position. The present invention relates to a straw cutting blade fixing structure for a thresher that is attached to a machine body and arranged so as to be engaged with each end side separately.

[Prior Art] Such threshing equipment is used for polishing or replacing straw cutting blades, or for making it possible to attach and detach a removable receiving net that is pressed and fixed by a straw cutting blade frame. It is constructed so that the straw cutting blade frame can be removed from the assembly position.

Conventionally, as shown in FIGS. 10 and 11, there are two locations in the front and back of a fixed frame 20 installed on the left and right side walls 106, 106 of the handling room A, and a straw cutting blade frame placed on this fixed frame 20. 23, lock holes 100 are formed in two places on the front and back of the
A pair of lock pins 102, 102 that can be freely engaged and detached from springs 10 and 101, 101, respectively.
3, 103 on the detached side, and attach the pair of lock pins 102, 102 to the spring 1 as shown in the figure.
03, 103, the lock hole 100,
After engaging the locking pins 100 and 101, 101, the locking pins 102, 102 are inserted into the locking frame 104,
The straw cutting blade frame 23 is fixed to the frame 20 by being locked to the locking parts 104A and 104A provided in the frame 104.
The springs 103, 103 can be attached by locking the locking pins 102, 102, which are locked to the locking portions 104A, 104A, respectively. Lock holes 100, 100 and 101, 1 with power
The structure is such that the receiving net 4 can be attached and detached by removing the pair of lock pins 102, 102 from the straw cutting blade frame 23 and releasing the fixation of the straw cutting blade frame 23. Further, as shown in FIGS. 12 and 13, a pair of rocking plates 10 are attached to the left and right side walls 106, 106 of the handling room A so as to be rotatable around an axis Z.
At the same time, the straw cutting blade frame 23 is attached over the sections 5 and 105, and the lock holes 106 formed in the side walls 106 and 106 and the swing plates 105 and 105 are respectively installed.
A, 106A and 105A, 105A, a pair of lock pins 108, 108 which can be freely engaged and disengaged are provided on the straw cutting blade frame 23 while being urged toward the engagement side by a spring 107. 108 for each spring 10
7,107, the lock hole 106A,
106A, 105A, and 105A, and the straw cutting blade frame 23 is attached to the left and right side walls 106, 10.
After releasing the fixation from 6, remove the straw cutting blade frame 23.
is rotated around the axis Z to a predetermined position to enable attachment and detachment of the catch net 4, or the straw cutting blade frame 23 is rotated to a fixed position and the pair of lock pins 108 are inserted into the lock hole 106A. ,1
By engaging with 06A, 105A, and 105A, the straw cutting blade frame 23 is attached to the left and right side walls 10.
6, 106 to fix the receiving net 4.

[Problem that the invention attempts to solve]

However, in the case of the above conventional structure, in order to fix and release the straw cutting blade frame 23, a pair of lock pins 102, 102 or 10 are required.
8,108 had to be operated separately, which was time-consuming.

An object of the present invention is to make it possible to easily and quickly fix and release the straw cutting blade frame.

[Means for solving problems]

The characteristic configuration of the present invention is that in the straw cutting blade fixed configuration of the threshing device described above, the pair of locking tools include:
A structure is provided in which a single operating lever is linked so that both of these locking tools are switched in the same direction of action, either the locking direction or the unlocking direction, and the pair of locking tools are biased toward the locking action side. In addition, a holding part for holding the operating lever in the unlocked position is provided on the body, and its functions and effects are as follows.

[Effect]

Simply by moving one operating lever to the unlocked position and holding it by the holder, the pair of locking tools will move to the unlocking position at once. By simply removing the operating lever from the unlocking position, the pair of locking tools will be activated. The mechanism brings it into the working position all at once.

[Effect of idea]

A pair of locking tools can be activated and released at once with a single operating lever, and the fact that the locking tool can be activated simply by removing the operating lever from the holding part is even more impressive. Fixing in the assembled position and releasing the fixing can now be done easily and quickly by operating a single operating lever, and the work of replacing or repairing the straw cutting blade or attaching and detaching the receiving net can be done easily. It has become possible to more efficiently fix and release the frame of the straw cutting blade.

〔Example〕

Fig. 8 shows a threshing device mounted on a combine harvester, which is equipped with a rotary handling cylinder 2 for handling and processing the harvested grain culm which is clamped and conveyed into the handling room A in a horizontal position by the feed chain 1. A waste straw chain 3 is provided for supplying treated waste straw to waste straw processing devices (not shown) such as shredding cutters and binding devices. Then, the processed material falling through the receiving net 4 disposed below the handling cylinder 2 and the processed material discharged through the opening 5 formed at the lower end of the handling chamber A are transported toward the rear. An oscillating sorting plate 6 that performs specific gravity sorting, and a winnower 7 that blows sorting air to the sorted items that fall from the oscillating sorting plate 6 are provided. A fan 8 is provided to transfer grains to the first collection section 9 and to transfer grains with branches to the second collection section 1.
At the same time, the straw waste is collected by the swinging sorting plate 6.
Further, dust such as fine straw waste is sucked and discharged out of the apparatus by a cross-flow fan 8. In addition, 1 in the figure
1 is a thrower for returning the second item collected by the second item collecting section 10 into the handling room A.

To explain the structure of the receiving net 4, as shown in FIG. A plurality of locking holes 12 provided at the rear end of 4A...
A plurality of locking pins 13 provided at the front end of the rear net frame 4B
The receiving network 4 is constructed by intervening...

To explain the support structure of the receiving net 4, as shown in FIGS. 6 and 7, there are an inlet plate part 14 and an outlet plate part 15 inside which guide the reaped grain culm to the lower side of the handling barrel 2 of the handling room A. Guide 16 with bent wire formed on the side surface
a and 16b are provided. Then, the front receiving screen frame 4A is placed on the guides 16a, 16b and inserted, and the pair of front pins 17, 17 provided at the front ends of the guides 16a, 16b are inserted into the front receiving screen frame 4A. The front receiving screen frame 4A is positioned by engaging into the engaging holes 18, 18 of the rear receiving screen frame 4B.
is inserted onto the guides 16a, 16b as described above, and the rear end of the front net frame 4A is positioned with the three locking pins 13 provided at the front end of the rear net frame 4B. The three locking holes 12 formed in
At the same time, a pair of engagement holes 19, 19 provided in the rear end frame of the rear receiving net frame 4B are connected to a pair of engagement holes 19, 19 provided in the rear end frame of the rear receiving net frame 4B by a pair of engagement holes protruding from the fixed frame 20 installed on the front and rear walls of the handling room A. By engaging the locking pins 21, 21, the rear net frame 4B and the front net frame 4A are positioned.

In order to fix the receiving net 4 in the inserted state, a plurality of straw cutting blades 12 are provided as shown in FIG.
A pair of locking tools 2 that can freely fix and release the straw cutting blade frame 23 provided with... to the fixed frame 20.
4a and 24b to press and hold the receiving net 4 to the fixed frame 20.Hereinafter, a structure that allows the straw cutting blade frame 23 to be fixed and unfixed will be described in detail.

As shown in FIGS. 1 to 3, one operating lever 26 is connected to a swinging member 25 attached to the fixed frame 29 so as to be swingable around the longitudinal axis X of the aircraft. A pair of locking tools 24a and 24b, which are pivotally supported so as to be swingable and which are both operated in the same operating state in either the locking direction or the unlocking direction by operating the operating lever 26, are moved by a tension spring 27. It is pivoted to the fixed frame 20 in a state where it is biased toward the locking side, and the swinging member 25 and the locking tools 24a, 2
4b are pivotally connected by swing arms 28 and 29, and by operating the operating lever 26 to the unlocking side against the biasing force of the spring 27, a pair of U provided on the straw cutting blade frame 23 is released. The straw cutting blade frame 23 is unlocked by disengaging the pair of locking tools 24a and 24b that are engaged with the letter-shaped locking members 30a and 30b, and the operation lever 26 is moved to the upper part of the fixed frame 20. The operating lever 26 can be fixed at the unlocked position by being held by a holding portion 31a of a locking frame 31 attached to the locking frame 31. However, the spring 27 is referred to as a mechanism for biasing the pair of locking tools 24a, 24b toward the action side. In addition, 32a, 3 in the figure
2b is an insertion hole for the locking tools 24a, 24b. Further, 33, 33 are the fixed frames 20
This is an engagement hole that engages with the locking pins 21, 21, respectively, which protrude from the top.

In addition, in order to fix a plurality of straw cutting blades 22... to the straw cutting blade frame 23, as shown in FIGS. 3 and 4, first, the straw cutting blades 22... are formed on the straw cutting blade frame 23. After the holes 23a are inserted into the respective holes 23a, the plurality of protrusions 34A provided with the retaining plate 34 are inserted into the holes 22a formed in the straw cutting blades 22. Insert it into the straw cutting blade frame 23 in the state of
A locking pin 36, which is provided on the straw cutting blade frame 23 and is biased toward the disengagement side by a spring 35, is engaged in a pin hole 34a formed in the backing plate 34, and then the locking pin 36 is inserted into the pin hole 34a formed in the frame 23. The straw cutting blades 22 are fixed to the straw cutting blade frame 23 so as to be held by the holding portion 23A.

When the receiving net 4 is to be extracted, the straw cutting blade frame 23 must be removed.

[Another example]

In the embodiment, the pair of locking tools 24a, 24
Although b is a hook, it may be a locking pin as shown in FIG. In other words, the pin holes 37A, 37 formed in the plate parts 37, 37 that protrude downward from the holes 42, 42 formed in the straw cutting blade frame 23, respectively.
A plate portion 3 protruding downward from the fixed frame 20 at B
A locking pin 24 is biased toward the engagement side by a spring 40 into pin holes 38A and 38B formed at 8 and 38.
a, 24b are engaged with the straw cutting blade frame 23 as it moves downward, thereby fixing the straw cutting blade frame 23 to the fixed frame 20, and operating the operating lever 25 against the biasing force of the spring 40. By doing so, the locking pins 24a, 24b can be removed from the pin holes 37A, 37B of the plate parts 37, 37.
The straw cutting blade frame 23 is fixed so as to be released from the fixed frame 20 by releasing the lock. In addition, 41 and 41 in the figure are boss parts fixed to the plate parts 38 and 38, and the locking pins 24a and 24b
It is intended to guide and support.

[Brief explanation of the drawing]

The drawings show an embodiment of the straw cutting blade fixing structure of the threshing device according to the present invention, and FIG. 1 is a longitudinal cross-sectional view of the structure of the straw cutting blade frame mounting part as seen from the front and rear directions of the machine. A vertical cross-sectional view of the machine as seen from the left and right directions showing the structure of the attachment part, Figure 3 is a cross-sectional plan view of the straw cutting blade frame, Figure 4 is an exploded perspective view of the straw cutting blade frame, and Figure 5 is a perspective view of the receiving net. FIG. 6 is a perspective view of the threshing device, FIG. 7 is a longitudinal cross-sectional view with a receiving net attached, and FIG. 8 is an overall side view of the threshing device. FIG. 9 is a longitudinal cross-sectional view of another embodiment of the structure of the mounting portion of the straw cutting blade frame, as viewed from the left and right directions of the machine. Figures 10 and 12 are vertical cross-sectional views as seen from the front and rear directions of the machine, showing conventional examples of the structure of the mounting part of the straw cutting blade frame, and Figures 11 and 13 are conventional examples of the mounting part of the straw cutting blade frame. FIG. 23... Straw cutting blade frame, 24a, 24b
. . . Locking tool, 26 . . . Operation lever, 27 .

Claims (1)

[Scope of utility model registration request] A pair of releasable locking tools 24a and 24b that fix the straw cutting blade frame 23 in the assembled position are provided.
A straw cutting fixing structure for a threshing device attached to the machine body, which is arranged so that the straw cutting blade frame 23 is engaged with the front end side and the rear end side of the machine body, respectively, and is attached to the pair of lock tools 24a, 24b. , one operating lever 26 is linked so that both of the locking tools 24a, 24b are switched in the same operating direction, either the locking direction or the unlocking direction, and the pair of locking tools 24a, 24b are operated in the locking direction. A holding section 31 that is provided with a mechanism 27 that urges the operating lever 26 to the side and holds the operating lever 26 in the unlocked position.
A is the straw cutting blade fixed structure of the threshing device installed on the machine body.