RU1804386C - Device for logging timber - Google Patents

Abstract

Usage: in forest technology, in particular to the line x cutting chevy whips. SUMMARY OF THE INVENTION: the device includes a hydraulic actuator that rotates the swinging frame 2 with the saw blade 3 from the initial position I to the live roll zone - final position II. Sorting of the assortment takes place. The dog 9 freely slips over the teeth of the ratchet wheel 8. During the reverse stroke of the frame 2, the dog 9 abuts against one of the teeth of the wheel 8. The ratchet wheel 8 and the gear wheel 7 rotate, forcing the gear 11. Also, the carrier 12 begins to rotate, carried away followed by a connecting rod 13, which in turn forces the ejector 5. In position III, the saw blade 3 is completely out of contact with the timber 17, and the gear 11 together with the carrier 12 rotates 180 °; In position IV, the ejector takes up her inclined position, dropping a cut assortment. 4 ill. (L C

Description

The invention relates to the forest industry and can be used in cutting lines for whips.

The purpose of the invention is to increase the manufacturability and reliability of the device.

Figure 1 shows a device for sawing timber, side view (positions I and It); Fig. 2 is the same, positions I, H, III, IV; in Fig.Z - section aa in Fig.1; figure 4 is a view along arrow B in figure 1.

The device includes a longitudinal movement mechanism 1, made, for example, in the form of a roller table, a swinging frame 2 with a saw blade 3 and a slide hydraulic cylinder 4, a lever ejector 5 mounted on a horizontal axis. In addition, on the axis 6 of the swinging frame

2 rigidly mounted gear 7 and the wheel 8 of the ratchet mechanism. The dog 9 is mounted on a swinging frame 2. Parallel to the axis 6, an additional axis 10 is mounted in the device, on which the second gear 11 of the gear pair and the carrier 12 of the connecting rod 13 are fixed, pivotally mounted on the ejector 5. The device is also equipped with a rigid stop 14. The carrier 12 is connected to connecting rod 13 through the axis 15, and the dog 9 is mounted on the frame 2 on the axis 16.

The device operates as follows.

Timber 17, supplied by the roller table 1, stops, resting against the emphasis 14, the hydraulic cylinder 4 rotates freely si00

g

with

00

about

with

the swinging frame 2 on the b axis with the rotary saw blade 3 from the initial position I to the roller table zone - the final position II. Assortment is being sawn off. In this operation, the dog 9, mounted on the swinging frame 2 with the help of the axis 16, freely slips over the teeth of the ratchet wheel 8, and all other parts of the device retain their original position.

During the reverse stroke of the swinging frame 2 with the saw blade 3, the dog 9 abuts against one of the teeth of the ratchet wheel 8, which sits on the same key of the axis 6 with the gear wheel 7. The ratchet wheel 8 and the gear wheel 7 rotate, and the gear 11, which rotates with the carrier 12 sits on one key of the axis 10. The carrier 12 begins to turn, lowering downward and entraining the connecting rod 13, fastened with the axis 15. The connecting rod 13, in turn, forces the resetter 5 to turn, lowering it down. In the first half of the return stroke between positions II and til, the ejector 5 oscillates, dropping down and returning to its original position. In the ill position, the spindle disk 3 completely lost contact with the timber, and the gear 11 together with the carrier 12 turned 180 °. In the next quarter of the reverse stroke in position IV, the ejector 5 takes the top 0

5

0

5

0

her inclined position, dropping a cut assortment. In position I, all parts of the device occupy the original position. For a complete reverse stroke of the swinging frame 2, the gears 11 make one complete revolution. The gear ratio is 360 °: o °, where a is the angle of rotation of the swing frame 2.

Claims (1)

The proposed device design is reliable in operation, guarantees trouble-free operation and the possibility of cutting timber of the maximum diameter with the selected saw blade dimensions. SUMMARY OF THE INVENTION A device for bucking timber, including a longitudinal movement mechanism, a swinging frame with a saw blade and a hydraulic ram, and a lever ejector mounted on a horizontal axis, distinguishing it so that, in order to improve manufacturability and reliability, on the axis the swinging frame is rigidly mounted gear and a ratchet mechanism wheel, the dog of which is mounted on the swinging frame, the device is equipped with an additional axis on which the second gear is rigidly mounted, interacting with the first and the carrier rods pivotally mounted on the ejector. me