JPH0535948Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is a veneer veneer in which a plurality of pairs of upper and lower feed rolls are installed in the conveying direction of the veneer veneer, and the veneer is arranged in multiple stages in the vertical direction. This invention relates to a support device for a feed roll in a dryer.

``Prior Art'' Usually, as shown in FIGS. 3 and 4, a veneer dryer for drying the seed veneer veneer has a pair of U-shaped vertical beams 1 having a predetermined roll interval.
A plurality of plywood veneers 2 are assembled at appropriate intervals in the transport direction, and the shaft portions 5 and 6 of the upper and lower pair of feed rolls 3 and 4 are fitted into the bearing boxes 7 and 8 on this vertical beam 1. The bearing members 9 and 10 are made of graphite, gunmetal, etc., and are vertically supported in multiple stages and in multiple sets.

According to this structure, a spur gear 11 is attached to an extension of one shaft 5 of the upper feed roll 3, and this flat gear 11 is attached to an extension of one shaft 6 of the lower feed roll 4. It is in mesh with the spur gear 12 attached above. Furthermore, a chain sprocket 13 is provided on the extension of one shaft portion 6 of the lower feed roll 4.
is attached to the engine, and receives driving force from a prime mover (not shown) through a chain 14. Further, a chain presser 15 of a chain sprocket 13 is attached to the outer end of the other shaft portion 6 of the upper feed roll 3.

According to this configuration, in the multi-stage veneer dryer, the driving force of the prime mover (not shown) is received by the chain sprocket 13 of the lower feed roll 4, and the other end of the lower feed roll 4 is flattened. The driving force is transmitted to the flat gear 11 of the upper feed roll 3 which is in mesh with the gear 12, and the veneer veneer 2 is transferred under pressure by the upper and lower feed rolls 3 and 4. Therefore, when the above operating state passes for a certain period of time, the shaft portions 5, 6 of the upper and lower feed rolls 3, 4
The bearing members 9 and 10 that support the bearings wear out and need to be replaced.

``Problem to be solved by the invention'' However, the bearing members 9 and 10 fitted in the bearing boxes 7 and 8 are usually cylindrical and fit and support the respective shaft parts 5 and 6. Therefore, when replacing them, it is necessary to manually remove both spur gears 11, 12, chain sprocket 13, and chain retainer 15, which are attached to the extensions of each shaft portion 5, 6, each time. Nakatsuta.

Therefore, in general, the number of pairs of upper and lower feed rolls 3, 4 installed in a veneer dryer arranged in multiple stages in the vertical direction is at least 300 or more, and it is difficult to replace the bearing members 9, 10. The amount of effort and time required was enormous.

``Means for Solving the Problems'' In view of the above, the present invention is based on horizontal beams that are stretched at regular intervals in the vertical direction between multiple longitudinal beams installed at arbitrary intervals on both sides of the conveyance direction. A casing whose upper and lower sides are partitioned by a partition plate is attached, and the upper part of the casing has a U-shaped bearing member, and the lower part has a portion that engages with the casing at its lower end, and at least a lower feeder member is provided. Each bearing member having a height greater than the radius of the shaft portion of the roll is installed,
In addition to supporting the shafts of the upper and lower pair of feed rolls,
The bearing member can be attached and detached without removing the drive transmission member attached to the outer end at a certain distance from the supporting position, thereby improving work efficiency.

“Embodiment” An embodiment of the present invention will be described below with reference to the accompanying drawings. It should be noted that parts that have already been explained will be given the same numbers and will not be explained repeatedly.

A plurality of vertical beams 1 are erected at arbitrary intervals on both sides of the veneer dryer in the conveying direction, and horizontal beams 16 are horizontally installed between the vertical beams 1 at regular intervals in the vertical direction. Normally, the position of the vertical beam 1 in this type of veneer dryer is at the position of the inner wall with respect to the outer wall that serves as the door for opening and closing, and the number of horizontal beams 16 installed in the vertical direction is such that the veneer veneer 2 is moved in multiple stages. This is the number of transport stages to be transported.

Casings 18 having an open upper part and partitioned by a partition plate 17 at the middle part in the vertical direction are attached at regular intervals in the transport direction of the cross beam 16. A U-shaped bearing member 9 is installed in the upper part of the casing 18, with its both sides guided by the casing 18 and its lower part supported by the partition plate 17. Further, the lower part of the casing 18 has an engaging portion 19 at its lower end that engages with the lower part of the casing 18,
In addition, a bearing member 10 having a height at least equal to or greater than the radius of the shaft portion 6 of the lower feed roll 4 is installed.

Under this condition, the pair of upper and lower feed rolls 3 and 4 are
Upper and lower bearing members 9,
The casing 18 is supported at a certain distance from this supporting position (approximately this casing 18
) Attach the drive transmission member to the outer end. As described above, this transmission member includes a spur gear 12 on an extension of one shaft portion 6 of the upper feed roll 3;
A spur gear 12 is attached to an extension of one shaft 6 of the lower feed roll 4, and a chain sprocket 13 is mounted to an extension of one shaft 6 of the lower feed roll 4. Incidentally, since the other shaft portion 6 of the upper feed roll 3 is shorter and smaller than the other shaft portions, no drive transmission member is directly attached to it, but a chain sprocket 13 is attached to the outer portion of the shaft portion 6. A chain presser 15 is interposed.

Therefore, if the bearing members 9 and 10 wear out after operating for a certain period of time, first the U-shape on the drive side (the side where the chain sprocket 13 is installed) that supports the upper feed roll 3 will be damaged. In the case of the bearing member 9 having the shape, after the chain presser 15 is removed, the outer end of the shaft portion 5 is lifted and removed from the open upper portion, and the shaft portion 5 is replaced using both sides of the casing 18 as a guide. In addition, in the U-shaped bearing member 9 on the driven side (the side on which the spur gear 12 is installed) that supports the upper feed roll 3, simply lift the outer end of the shaft portion 5 to open the upper part. It is sufficient to remove the casing 18 from the casing 18 and replace it using both sides of the casing 18 as guides.

Furthermore, in the U-shaped bearing member 10 on the drive side (the side where the chain sprocket 13 is installed) that supports the lower feed roll 4, the chain presser 15 is removed and the chain 14 is placed in a tensioned state. After releasing the maintained fluid pressure for the tension and loosening the chain 14, the shaft portion 6 is lifted up to the vicinity of the partition plate 17 of the casing 18, and the lower engagement portion 19 of the bearing member 10 is inserted into the casing 18.
Remove it from the bottom and replace it. In addition, the driven side (spur gear 12
In the bearing member 9 on the side where
Simply insert the shaft portion 6 into the partition plate 17 of the casing 18.
It is sufficient to lift the bearing member 10 up to the vicinity, remove the lower engagement portion 19 of the bearing member 10 from the lower part of the casing 18, and replace it.

In this embodiment, among the drive transmission members, the chain 14 and the chain presser 15 installed on the drive side are placed above the chain sprocket 13, that is, on the extension of one shaft portion 5 of the upper feed roll 3. However, by changing this to the lower part of the chain sprocket 13, the U-shape on the drive side (the side where the chain sprocket 13 is installed) supporting the upper feed roll 3 can be changed. There is no need to remove the chain presser 15 when replacing the bearing member 9.

``Effects'' As described above, according to the device of the present invention, a plurality of vertical beams are erected at arbitrary intervals on both sides of the conveyance direction, and the upper and lower sides are partitioned by horizontal beams that span at regular intervals in the vertical direction. A casing partitioned by plates is attached, and the upper part of the casing has a U-shaped bearing member, and the lower part has a portion that engages with the casing at its lower end, and at least the shaft of the lower feed roll. A bearing member having a height greater than the radius of the shaft is installed to support the shafts of the pair of upper and lower feed rolls, and a drive transmission member is attached to the outer end at a certain distance from the supporting position. Since the material is attached to the bearing material, it is possible to save on raw material costs, especially for the lower bearing parts.
In addition, there is no need for workers to remove drive transmission members, such as spur gears and chain sprockets, which were conventionally installed on the extension of the shaft of the upper and lower feed rolls each time, reducing the time required to replace bearing members. This greatly reduces labor and improves productivity.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the device of the present invention, Fig. 2 is a side view of the main part of Fig. 1, Fig. 3 is a partially cutaway front view showing a conventional device, and Fig. 4 is a partially cutaway front view showing an embodiment of the device of the present invention. The figure is a side view of the main part of FIG. 3. 1...Longitudinal beam, 2...Plywood veneer, 3...Upper feed roll, 4...Lower feed roll, 5, 6...
... Shaft part, 7, 8 ... Bearing box, 9, 10 ... Bearing member, 11, 12 ... Spur gear, 13 ... Chain sprocket, 14 ... Chain, 15 ... Chain holder, 16 ... Cross beam , 17... Partition plate, 18...
Casing, 19...engaging part.

Claims (1)

[Scope of utility model registration request] A casing whose top and bottom are partitioned with partition plates is attached to horizontal beams that are stretched vertically at regular intervals between multiple vertical beams installed at arbitrary intervals on both sides of the conveyance direction, and the inside of this casing is U at the top
A letter-shaped bearing member is installed in the lower part, and a bearing member having a lower end that engages with the casing and has a height at least equal to or greater than the radius of the shaft of the lower feed roll is installed. The bearing member is characterized in that it supports the shaft portions of the pair of feed rolls, and that the bearing member is detachable without removing the drive transmission member attached to the outer end at a certain distance from the supporting position. A feed roll support device in a veneer dryer.