JPH0413983Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a support structure for rollers in a fish sorter that distinguishes the size of fish based on the intervals at which the rollers are installed.

[Prior Art] For example, a fish sorting device using a roller is
As shown in Utility Model Application Publication No. 55-73274,
A large number of rollers are arranged parallel or radially at intervals depending on the size of the fish to be sorted, and both ends of each roller are supported by the machine frame. , roller 21
A support shaft 22 is fixed to the machine frame and protrudes from the end surface, and is supported via a bearing 24 by a support piece 23 provided on the machine frame so that the mounting position can be moved and adjusted. An O-ring 25 is provided to prevent water from entering. In addition, there is one in which the support shaft is rotatably mounted on a bearing provided at the end of the roller, and the end of the support shaft protruding from the bearing is fixed to a support piece of a base.

[Problem to be solved by the present invention] In this way, each roller has a support shaft protruding from the roller end supported by a support piece provided apart from the roller end, and a support shaft provided on the support piece or the roller end. It is rotatably supported by bearings. For this reason, when a large amount of water, fishing net scum, cut threads, and other filamentous debris are purchased and supplied onto the roller along with fish, the support shaft 22
Water and thread-like debris may flow down onto the surface, get entangled with the rotating parts and obstruct the rotation of the roller, or water that travels along the support shaft or directly hits the bearing at the end of the roller may cause aging of the O-ring. This can cause malfunctions such as infiltration into the bearing through gaps in the bearing, and not only does it require constant monitoring during rotation to remove thread-like debris, but the operation must often be stopped to clean or clean the bearing. Maintenance must be performed, reducing work efficiency.

Further, when adjusting the distance between the rollers by moving the support piece, the support position of the support piece may be deviated from the axis of the roller, resulting in twisting and strain on the bearing.

[Means for Solving the Problems] The present invention is designed to eliminate the above-mentioned drawbacks, and includes providing a hollow portion that opens at the end of the roller, and inserting an insertion hole in only one end surface at the tip of the support arm that supports each roller. The roller support shaft is inserted from only one end face and supported by the spherical bearing, and the support shaft insertion side of the bearing housing is inserted into the hollow part of the roller. It is configured as follows.

[Function] Therefore, since the roller end edge covers the bearing housing of the support arm and the support shaft does not protrude from the roller end, water and filiform debris from the roller end do not fall onto the support shaft or into the bearing part. The support shaft is supported by a spherical bearing inside the bearing housing of the support arm, and the support shaft is not twisted. to maintain smooth rotation at all times.

[Example] To explain this example shown in the figure, 1
is the machine frame, 2 is a roller, and both ends are supported by arms 3
It is supported to rotate freely. Reference numeral 4 denotes a roller spacing adjustment device provided on both sides of the machine frame 1 to hold the support arms 3, and by rotating the drive shaft 4a with the operating handle 5, the spacing of the plurality of support arms 3 can be increased or decreased at equal pitches via a gear mechanism. Move it as shown. Such a roller spacing adjustment device is disclosed in, for example, Japanese Patent Application No. 1983-
No. 202564. 6 is a chute that collects fish that have fallen from between the rollers 2, and 7 is a cover installed on the supply side 8 of the machine frame.
Fish are fed to the discharge side 9 from above.

The roller 2 is made of a stainless steel pipe, and a support shaft 12 is provided inside both ends through bearings 11, and at least the bearing 11 on the discharge side 9 on the downstream side
A hollow part 13 is formed at the end of the roller by further extending the pipe from the mounting part. 14 is the support arm 3
The bearing housing is provided at the upper end, and has a support shaft insertion hole that opens only on one end surface.The support shaft 12 inserted from this opening side is supported via the spherical bearing 15, and the bearing housing 14 is supported. The shaft insertion side is inserted into the hollow part 13 of the roller 2 and installed. 16 is an oil seal, and 17 is a flange provided on the outer periphery of the bearing housing 14 on the support shaft insertion side.

Cover 7 of supply side 8 on juxtaposed rollers 2
Among the fish fed from above, small fish are discharged from the roller gap into the chute 6, and large fish are discharged from the discharge side 9. Water flowing along the roller 2 along with the fish and mixed thread-like debris flow down from the discharge side 9 of the roller 2, but since the hollow part 13 at the end of the roller covers the outer periphery of the bearing housing 14, these water and The thread-like debris flows down to the outer circumferential surface of the bearing housing 14 and is discharged through a portion without openings or gaps.

Note that the roller 2 is installed with an inclination so that the discharge side 9 is lower, and the hollow part 13 is slightly downwardly oriented, so that water and filamentous debris cannot pass through the bearing housing 14 and enter the hollow part. There isn't, but
A water stopper may be constructed by providing a protrusion surrounding at least the upper half of the outer periphery of the bearing housing 14 in the hollow portion or a flange 17 on the outer periphery of the opening side end of the bearing housing.

[Effects of the present invention] As described above, according to the present invention, a hollow portion that opens at the end of the roller is provided, only one end face is opened at the tip of the support arm that supports each roller, and the roller can be accessed from only this one end side. The support shaft is inserted into the bearing housing and held through the spherical bearing, and there is no opening or gap on the outer periphery or the other end, and one end into which the support shaft is inserted is inserted into the hollow part of the roller. Therefore, the support shaft and the insert into the bearing do not protrude from the roller, and the hollow edge of the roller covers the outer circumference of the bearing housing of the support arm, preventing water, fish or other debris from falling from the roller end onto the bearing housing. etc., do not fall onto the support shaft, but instead fall along the closed outer surface of the housing, completely preventing thread-like debris from getting entangled in the rotating parts and water intrusion into the rollers and the bearing parts in the bearing housing. can be prevented, and the simple configuration saves maintenance effort.
It can operate continuously for long periods of time and has the effect of improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a top view showing an embodiment of the present invention, FIG. 2 is a side sectional view taken along line A-A, and FIG. 3 is a side sectional view showing an example of a conventional roller support device. 1 is the machine frame, 2 is the roller, 3 is the support arm, 4 is the roller spacing adjustment device, 6 is the chute, 7 is the cover, 8 is the supply side of the machine frame, 9 is the discharge side, 11 is the bearing, 12 is the support shaft , 13 is a hollow part, 14 is a bearing housing, 15 is a spherical bearing, 16 is an oil seal,
17 is a flange, 23 is a support piece, and 25 is an O-ring.

Claims (1)

[Claims for Utility Model Registration] 1. A fish sorting machine in which a plurality of rollers are arranged side by side at equal pitches, and fish are fed onto the rollers to distinguish sizes from small ones, wherein the rollers are provided with hollow parts that open at the ends of the rollers, At the tip of the support arm that supports each roller, a support shaft insertion hole is provided only on one end surface, and the roller support shaft is inserted.
A fish sorting machine comprising a bearing housing held through a spherical bearing, and a support shaft insertion side of the bearing housing is inserted into the hollow part. 2. The fish sorting machine according to claim 1, wherein the roller is formed of a pipe, and both ends of the pipe are further extended from the attachment part of the support shaft to form a hollow part opening at the roller end.