SU47803A1 - Machine for cutting paws on the mining fastening forest - Google Patents

Description

In the author's certificate No. 31604, a machine for cutting paws on a mining fastening forest is described, in which horizontal and vertical circular saws are used, having axes in pivoting arms, which is done to allow proper installation of saws in height to produce cuts with their relative relative position.

In the proposed machine, in addition to the two main saws, another third of the saw was used, which, in addition to the working rotation, can be turned around about two axes parallel to each other, the perpendicular mows of the saw itself.

The supply of roundwood to the saws in the machine is carried out using a known type of conveyors with automatic grippers.

In FIG. 1 is a side view of the machine with a partial cut; FIG. 2 - the same, top view; FIG. 3 - the same, in cross section; FIG. 4 is a cross section of the spindle column of one of the saws with its bearings and gears to communicate rotation; FIG. 5 is a side view of a conveyor for moving the arms to the saws; FIG. 6 is the same in cross section; FIG. 7 the same

(304)

view from above; FIG. 8, 9 and 10 are examples of cutting on round paws, of various types with three saws of the machine.

The proposed machine (Fig. 1-3) is driven by a motor, on the axis of which a pulley 75 is fixed, connected by means of a belt drive to a pulley 37 located on the shaft 32. A key is fixed along the entire length of the shaft 32, along which the mounted shaft 32 conic gear / 5. Gear 75 engages with another bevel gear 49, which drives a vertical shaft 23, fitted at the free end of bevel gears 20, which engages with bevel gear 33 of shaft 57. Shaft 57 drives bevel gear 52, which, in turn meshes with gear wheel 55 of inclined shaft 30, fitted with bevel gear 36, engaged with bevel gear 37, placed on shaft 53. An asterisk is mounted on shaft S3, which drives an endless chain of conveyor to drive saws o ops logs.

From the shaft 57 also receives the movement of the floor coupling 54, inside which it is necessary

The shaft 22 can be engaged with the coupling 54. The shaft 52 transmits movement into the box 55 by an intermediate shaft connected to the spindle columns carrying the saw axes.

The saws 17, 18 and 19 of the proposed machine are placed on a common support 9, fitted in the upper part with a plate on which the spindle columns I, 5, 7 (Fig. 1-3) are placed for the axes of the saws. Each of the spindle columns is fixed in bearings 4, b, 8, in which it can rotate around its axis at an angle. For example, in the machine shown in the drawing, spindle column 7 rotates to both sides of the vertical by an angle a up to 15 °; Spindle column 5 can be rotated by up to 20 on both sides to its vertical axis in both directions, and spindle column 7 rotates in its bearings by angle p up from the horizontal axis to 20 and down to 20 °. Thus, if you install any of the specified spindle columns under the front angle, you can install the corresponding saw / 7, J8 and 19 at the required angle to the object being processed.

The saw 19, located on the spindle 39, placed in the turn, in the box 2, can, besides turning by the angle a together with the column /, be turned further by the angle f (up to 18 ° in both directions) together with the box 2. Thus, the saw 19, rotation can be signaled about two axes parallel to each other, perpendicular to the axis of the saw itself.

Saws 17, 18, and 19 are mounted on the axes of their spindles with psmses of interchangeable distance rings 24 (Figs. 1, 4) fixed by nut 29. As a result, each saw can be shifted parallel to any position on the spindle axis itself.

The bearings of the spindle columns 4, b, 8 fi of the box 2 bearings are provided with eyelets (Fig. 4), into which the bolts 25 of the stopper 25, 26,27, 28 enter. The bolts 28 also pass through the ear of the column itself and the sleeve is put on them 26, between which and the ear of the column is placed a spring 27. Sleeve 26

equipped with a tooth that enters as it moves into the groove of the bearing lug, provided with a screw thread.

The stopper 25, 26, 27, 28 works as follows. After unscrewing the nut 25, the sleeve 26 moves along the bolt 28 under the action of the spring 27, and its tooth emerges from the groove of the eyelet. In this case, the spindle column can be rotated to the appropriate angle, after which the nut 25 is screwed in, the tooth of the sleeve 26 fits into the groove of the eyelet and thus fixes the position given to the spindle head and the saw.

The caliper 9 is movable in vertical and horizontal directions. In the vertical direction, it moves along the guides 50, and in the horizontal direction - along the guides 40. The mixing of the supor 9, both in the vertical and horizontal directions, is carried out using a conventional screw, pair transmission.

The movement is transmitted to all spindle heads of the supor 9 continuously, since with the horizontal displacement of the supor the gear J6, which is placed in the box //, moves along the long tongue of the shaft 32.

To supply the processed logs to the saws / 7, / 8, 19, the machine has a conveyor with an endless chain 38 (Fig. 3, 5 and 7), which receives movement from the sprocket on the shaft 53. There are automatic grippers on the chain 55. consisting of two hooks and tie rods 43. When the chain 38 moves, the hook 42 of the gripper 41, 42, with its lower protruding part, slides along part of the path along the spring-loaded platform 44 and tends to rotate around its axis. Since the gripping arms # /, 2 are connected to each other by a rigid, tight 43, when moving the hooks, the upper ends of the latter tend to converge until they meet with obstacles in their path. Such an obstacle may be a treated log, which is covered by grippers 41, 42 and when moving the chain 38 is brought to the saws. The log is held by the grippers 4f, 42 until the hook 42 leaves its lower base from the platform 44

then on the hook 42, the force of the spring 45 is not affected.

At the end of the conveyor, when the chain 38 is rotated, the processed log with its own weight presses on the hook 41 of the gripper 41, 42, and the hook 4J pulls the hook 42 through the hook 43, as a result of which the processed log is released and falls from the conveyor into the trolley or the corresponding receiver.

Examples of treating logs with three respectively mounted saws 17, 18 and 19 are shown in FIG. 8-10. In the example shown in FIG. 8, the work is performed by two saws / 7 and 18, which cut the material at a right angle to each other and to the tree axis.

In the examples shown in FIG. 9 and 10, the treatment is carried out with three saws / 7, 18 and / I and the cutting of the material is made with a slanting angle to each other.

The subject matter of the invention.

Claims (6)

1. The form of the machine, described in the author's certificate No. 31604, characterized in that, in addition to the two main saws / 7 and 18, a third circular saw / P is used, which, in addition to the working rotation, can be reported rotation about two axes parallel to each other, perpendicular to the axis of the saw itself. 2. In the machine tool according to claim 1, use a support P, common for the transfer axis to all saws, receiving, in order to set this axis in height, to move up and down using ordinary parallels on the machine frame and transmitting with a screw pair. 3. In the machine tool according to claim 1, use for feeding rounds to the saws of endless chain conveyors equipped with automatic grippers 41 42 and a spring-loaded platform 44 for guiding them. 4. In the machine tool according to claim 1, use a conventional screw pair to move the frame, supporting saws and the corresponding conveyor branch in the direction perpendicular to this branch, in order to adapt the machine to round cams of various lengths. 5. In the machine tool according to claim 1, for stopping 25,16,27,27, for the purpose of faxing the position given to one or another saw. 6. In the machine tool according to claim 1, use for installing one or another saw on its axis, fitted on this axis of interchangeable distance rings 24,