JP3129949B2 - Threshing device mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving net mounting structure for a threshing apparatus.

[0002]

2. Description of the Related Art A conventional threshing apparatus is disclosed in, for example,
As shown in Japanese Patent No. 144609, the receiving net is divided into a plurality in the circumferential direction, and the divided receiving net is interviewed with the frame on the threshing apparatus side by a plane along the radiation centered on the axis of the handling cylinder. The receiving net and the frame are fitted and connected by a pin provided in one of the members and a pin hole provided in the other member.

[0003]

Since the contact surface between the receiving net and the frame is a surface along the radiation centered on the axis of the handling cylinder, a radial external force acting on the receiving net, that is, processing The object is transferred in the rotation direction of the handling cylinder while being rubbed against the receiving net by the handling cylinder. Therefore, the receiving net includes a radial component force along the radiation centered on the axis of the handling cylinder and a tangential direction. A resultant force of the component forces acts, and there is a disadvantage that a radial external force acts as a shearing force on a fitting connection pin connecting the receiving net and the frame.

Therefore, as a means for preventing the shearing of the pins, it is conceivable to increase the number of pins in the direction of the shaft axis of the receiving net. However, if the number of pins is increased, it becomes difficult to connect and connect the pins. Increasing the diameter of the pin increases the strength of the members around the pin, that is, the thickness of the contact surface between the two members so that the surface on which the pin is mounted is not deformed or the pin hole is not deformed. Since the thickness must be increased to increase the strength, the weight of the receiving net increases, and there is a disadvantage that it becomes difficult to attach and detach the receiving net.

[0005] A first object of the present invention is to suppress the shearing of pins without bothering the fitting connection and increasing the weight of the receiving net.

A second object of the present invention is to facilitate the work of attaching and detaching a receiving network.

A third object of the present invention is to facilitate maintenance of the handling cylinder.

[0008]

According to the first aspect of the present invention, a maintenance opening is formed in a side wall of a threshing apparatus so as to be openable and closable, and is handled in a divided receiving net divided into a plurality in the circumferential direction. A split receiving net on the lower side of the trunk rotation direction is configured to be openable and closable on the opening side, and an end of the split receiving net on the lower side in the handling drum rotation direction is configured to be connected to and supported by a frame on the threshing apparatus side, and
The contact surface between the end face of the divided receiving net and the frame on the threshing device side is set to an inclined surface that is deviated more toward the outer side of the handling cylinder rotation direction toward the outside of the frame with respect to radiation centered on the axis of the handling cylinder. It is. [Operation] The radial external force acting on the receiving net is divided into a component force along the surface and a component force perpendicular to the surface with respect to the contact inclined surface between the receiving net and the threshing device side frame. Since the end surface of the receiving net is pressed against the contact surface of the threshing device side frame by the vertical component force inside, that is, the joining surfaces are pressed against each other, so the frame in the threshing device side bears the radial external force acting on the receiving net. The shear force acting on the pin can be reduced. [Effect] Thus, the radial external force acting on the receiving net is
Since the structure is designed to be supported by the frame on the threshing device side, the strength of the pins need only be sufficient to prevent the receiving net from moving in the axial direction. It is possible to facilitate the mating connection and to reduce the thickness of the contact surface due to the downsizing of the pin, and it is possible to suppress the shearing of the pin without incurring the trouble of the mating connection of the pin and increasing the weight of the receiving net.

According to a second aspect of the present invention, the divided receiving net on the lower side in the rotation direction of the handle cylinder is configured to be swingably openable and closable about the lower side in the rotation direction of the handle cylinder. [Operation] When the split receiving net is swung, the pin and the pin hole are automatically engaged and disengaged, so that there is no need to align the pin with the pin hole, and the split receiving net can be held in hand. There is no need to carry it outside the aircraft. [Effect] By configuring the split receiving network to be a swing open / close type,
There is no need to align the pin with the pin hole,
Since it is not necessary to hold the divided receiving network and carry it outside the machine, it is easy to attach and detach the divided receiving network. Furthermore, because the lower side is used as a fulcrum to allow swing opening and closing, the receiving net is swing open and the handling inside the handling room is compared to the case where the lower side is used as a fulcrum to allow swing opening and closing. When looking into the torso from below, the swinging open receiving net is unlikely to hinder maintenance.

According to a third aspect of the present invention, the divided receiving net on the lower side in the rotation direction of the cylinder is configured to be able to swing open and close downward with the upper side in the rotation direction of the cylinder as a fulcrum. Is configured to be able to move backward through the slide mechanism to a position below the divided receiving net on the upper side in the handling cylinder rotation direction. [Function] By configuring the split receiving net to be openable and closable by swinging and sliding, the split receiving net removed from a predetermined position by swinging on the lower side in the rotation direction of the handle cylinder is moved by sliding to the upper side in the rotation direction of the cylinder. It can be moved below the split receiving network. [Effect] Since the divided receiving net can be stored in the lower surface of the divided receiving net on the upper side in the rotation direction of the handling cylinder by swinging and sliding, the lower surface of the handling cylinder can be largely opened, and maintenance of the handling cylinder is performed. It will be easier.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to a receiving net for a whole-culm-insertable combine. In FIG.
The vertical side view of the threshing device mounted on the all-culm-in type combine is shown. The threshing device D is a threshing unit A for threshing the harvested grain culm fed by the feeder 1 and a process from the threshing unit A. It is constituted by a sorting section B for sifting and sorting the articles and sorting by air. The threshing unit A includes an axial-flow-type handling cylinder 2 having a spiral handling tooth 2A, a concave 3 as a receiving net stretched below the handling cylinder 2, and the like. By driving and rotating 2, the harvested culm is treated and the straw is discharged from the rear. In addition, the processed material obtained by handling the harvested grain culm leaks from the concave 3. The sorting unit B receives the processed material from the threshing unit A and transports it backward. The grain pan 4 performs rough sorting of the processed material transferred from the Glen pan 4. With a grain sieve 6 for sorting the best items, and a straw rack 7 for discharging secondary materials such as paddy with branches transferred from the grain sieve 6 and discharging long straw etc. from the rear. It is composed of a sorting case 8 and a Karamin 9 for generating wind power for wind sorting. Grains as the first thing that has leaked from the Glen Sheave 6 are collected by the first thing collection unit 10 provided below the Glen Sheave 6, and then are transported by a lifting conveyor (not shown) to a Glen tank (not shown). ) And stored. On the other hand, the second product that has leaked from the straw rack 7 is collected by a second product recovery unit 11 provided below the straw rack 7, and then a second reduction device with a reprocessing function (not shown). And reprocessed and transported. In addition, dust such as straw chips and rice husks is discharged out of the machine by the wind from Karino 9.

As shown in FIG. 2, the concave 3 is
It is formed in a grid shape with a curved plate-like bar a along the outer periphery of the lower surface of the handling cylinder and a thin round bar b along the axis of the handling cylinder, and is divided into two in the circumferential direction. The divided receiving nets 3A and 3B are connected to each other by bolts 13 with handles provided at predetermined intervals in the direction of the axis of the handling cylinder, with the frames 3a and 3b facing each other. The frame 3a 'on the other end side of the divided receiving net 3A is fixed to the frame 14 on the threshing apparatus side via bolts 16 provided at a predetermined interval in the handling cylinder axis direction, and is on the lower side in the handling cylinder rotation direction. The frame 3b 'on the other end of the divided receiving network 3B is
It is fitted and connected to pins 17 provided on the frame 15 on the threshing apparatus side at predetermined intervals in the direction of the axis of the cylinder. The split receiving net 3A on the upper side in the handling cylinder rotation direction is configured such that the top plate d2 of the threshing device is opened around the axis P2 and inserted from above, and both ends in the axial direction of the split receiving net 3A are The guide is guided by guide frames 20, 20 on the threshing device side. Split receiving net 3 on the lower side in the handling cylinder rotation direction
B is a pin 2 having an axis P perpendicular to the fitting connection pin 17 on the frame 15 on the threshing apparatus side.
When the bolt 13 with the handle is loosened to release the connection between the divided receiving nets 3A and 3B, the divided receiving net 3B on the lower side in the rotation direction of the cylinder is swung downward. It can be opened and closed. As shown in FIG. 3, a pin hole 19 formed in the frame 3b 'of the divided receiving network 3B is formed.
The longitudinal direction is formed in a long hole along the rotation direction of the handle so as not to hinder the swinging opening and closing of the divided receiving net 3B. The pin hole 19 is automatically fitted and connected.

The divided receiving net 3B on the lower side in the handling cylinder rotation direction
The end face of the divided receiving net 3B and the frame on the threshing device side so that a radial external force acting on the divided receiving net 3B accompanying the threshing process can be received and supported by the frame 15 on the threshing device side. The contact surface S with the surface 15 is set to be an inclined surface that is deviated more toward the outer side in the rotation direction of the handling cylinder toward the outside of the frame 15 with respect to the radiation F around the axis of the handling cylinder 2. The contact surface S ′ between the divided receiving nets 3A and 3B is formed on a contact surface along the radiation F about the axis of the handling cylinder 2.

An opening c for maintenance over the entire length of the receiving net 3 is formed in the side wall d on the lower side in the handling cylinder rotation direction of the threshing apparatus D, and the side wall d1 of the threshing apparatus for closing the opening c is handled. It is configured so as to be able to swing open and close outward around an axis P1 parallel to the axis of the body, and is located at an arbitrary swing open and close position via gas springs 22 provided at both ends in the direction of the body axis of the handle. It is configured to be able to hold. Also, the top plate d2 on the upper surface of the handling cylinder is configured to be able to hold the position at an arbitrary swing open / close position via the gas spring 23.

[Alternative Embodiment] In the above embodiment, the divided receiving net 3B on the lower side in the rotation direction of the cylinder is configured to be swingably openable and closable with the lower side in the rotation direction of the cylinder as a fulcrum P. It may be configured to be swingable openable and closable with the upper side in the rotation direction as a fulcrum, or may be configured to be detachable.

Further, in the above-described embodiment, an example in which the split receiving net on the lower side in the handling cylinder rotation direction and the frame on the threshing apparatus side are connected by pins is used, but the structure is connected by bolts. Is also good.

Further, the receiving net may be a crimp net formed by knitting wires in a vertical and horizontal lattice in addition to the cone cave.

Further, as shown in FIG. 5, the receiving network 3 may be divided into three parts in the circumferential direction so as to be detachable. That is, the divided receiving nets 3A, 3C and 3B are fitted and connected to each other via the pins 17, and the divided receiving net 3A on the upper side in the handling cylinder rotation direction is fixed to the frame 14 on the threshing device via the bolts 16. In addition, divided receiving networks 3A, 3
The contact surfaces S ′ and S ′ between C and 3B are set as inclined surfaces that are deviated more radially outward with respect to the radiation F about the axis of the handling cylinder 2 toward the handling cylinder rotation direction. May be.

As shown in FIG. 6, the divided receiving net 3B on the lower side in the rotation direction of the cylinder is connected to the fulcrum P1 on the upper side in the rotation direction of the cylinder.
The swing fulcrum P1 may be configured so as to be capable of swinging open / close downward, and the swing fulcrum P1 can be moved backward through the slide mechanism G below the divided receiving net 3A on the upper side in the handling cylinder rotation direction. That is, guide rails 26 on which the roller 25 can move are provided at both ends in the axial direction of the handle cylinder in the divided receiving net 3A on the upper side in the handle cylinder rotation direction.
The roller 25 of the slide mechanism G and the divided receiving net 3B on the lower side in the handling cylinder rotation direction are connected via a bent link 27, and the divided receiving net 3B on the lower side in the handling cylinder rotation direction is The roller 25 is configured to be able to swing downward with the roller 25 on the upper side in the rotation direction as a fulcrum, and the roller 25 is moved along the guide rail 26 to the upper side in the rotation direction of the cylinder to swing downward. The receiving net 3B is moved below the divided receiving net 3A on the upper side in the handling cylinder rotation direction, and its free end is separately suspended via the locking member 28 to separate the receiving net 3A on the upper side in the handling cylinder rotation direction. May be configured to be able to be stored below. In the case of such a structure, the divided receiving net 3B on the lower side in the handling cylinder rotation direction is fixed to the frame 15 on the threshing apparatus side by a bolt 13 with a handle to prevent falling.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a vertical side view of a threshing apparatus.

FIG. 2 is a longitudinal rear view of the same.

FIG. 3 is a longitudinal rear view showing an open / closed state of a divided receiving network.

FIG. 4 is a longitudinal rear view showing a connection state between divided receiving networks.

FIG. 5 is a longitudinal rear view of a receiving net showing a second embodiment.

FIG. 6 is a longitudinal rear view of a receiving net showing a third embodiment.

FIG. 7 is a longitudinal rear view showing the open / closed state of the divided receiving network.

FIG. 8 is a longitudinal sectional side view of the same.

[Explanation of symbols]

 2 Handling cylinder 3A Split receiving net 3B Split receiving net 15 Threshing device side frame D Threshing device F Radiation G Slide mechanism P Swing fulcrum P1 Swing fulcrum S Contact surface c Maintenance opening d Side wall

Claims (3)

(57) [Claims] An opening (c) for maintenance is formed on a side wall (d) of a threshing device (D) so as to be openable and closable, and a plurality of divided receiving nets (3A) and (3B) divided into a plurality in the circumferential direction. The split receiving net (3B) on the lower side in the handling cylinder rotation direction is configured to be openable and closable on the opening (c) side, and the end of the split receiving net (3B) on the lower side in the handling cylinder rotation direction is connected to the threshing apparatus side. The frame (15) is configured to be connected and supported, and the contact surface (S) between the end face of the divided receiving net (3B) and the frame (15) on the threshing device side is formed by the axis of the handling cylinder (2). Radiation centered on (F)
In contrast, the receiving net mounting structure of the threshing device, which is set on an inclined surface that is deviated toward the upper side in the rotation direction of the handling cylinder toward the outside of the frame (15). 2. A split receiving net (3) on the lower side in the rotation direction of the handling cylinder.
2. The receiving net mounting structure of a threshing apparatus according to claim 1, wherein B) is configured to be swingably openable and closable with the lower side in the handling cylinder rotation direction as a fulcrum (P). 3. A split receiving net (3) on the lower side in the rotation direction of the handling cylinder.
B) is constructed so that it can be pivotally opened and closed downward with the fulcrum (P1) at the upper side in the rotation direction of the handle cylinder, and the pivoting fulcrum (P
2. The receiving net mounting structure for a threshing device according to claim 1, wherein 1) is configured to be able to retreat under a divided receiving net (3A) on the upper side in the handling cylinder rotation direction via a slide mechanism (G).