SU712520A1 - Timber lifting apparatus - Google Patents

Description

one

The invention relates to lifting equipment, namely, devices for lifting timber.

A device for lifting timber is known, which is a chute consisting of three welded I-beams, mounted slightly obliquely, in which a piston is used to drive the fastening wood upwards using a motor with a gearbox and a friction pulley located on the frame. In the upper and lower parts of the gutter, pulleys are fastened around the rope, the ends of which are connected to reciprocating pistons. At the top of the gutter, two folding stoppers are fixed and pipes become.

A device for lifting timber is also known, including folding stoppers, spring-loaded sector grippers, a power cylinder and a tubular stand 2.

The disadvantage of these devices is the complexity of the design.

The aim of the invention is to simplify the design.

This is achieved by the fact that the power cylinder is equipped with a ring-partition with a switching mechanism made in the form of a spring-loaded rod with longitudinal channels, with openings for inlet and outlet of compressed air in the ring-partition.

FIG. I shows the device, side view; in fig. 2 - the same, top view; on

FIG. 3 — switching mechanism, longitudinal section; in fig. 4 — node I in FIG. 2

The device includes a receiving section of pipe 1, on which spring-loaded sector folding stoppers 2 are installed at the ends of its B cut-outs, and between them on the flanges 3 rigidly fixed on the receiving section of pipe 1, a load cylinder 4 is installed, inside which a ring 5 is rigidly fixed in the middle part That is

a partition for a hollow piston 6, with an external groove 7. At one of the ends of the hollow core 6 there are mounted sector spring-loaded grippers 8, included in rectangular notches 9 of the receiving length of pipe 1.

A high-speed switching mechanism consisting of a switching rod 10 having two longitudinal channels I is mounted in the body of the ring-partition 5.

with holes 12, and springs 13 are fixed at the ends of the switching rod 10. In the ring-partition 5 there are three holes 14, of which the middle hole serves for compressed air, alternately

Claims (2)

entering into one of the working spaces of the cylinder 4, and the extreme openings - for the release of compressed air. On the power cylinder 4 against the middle hole 14 of the ring 5 is fixed fitting 15, which receives compressed air from the source. The device works as follows. After supplying compressed air to the fitting 15, the latter through one of the channels 11 of the switching rod 10 enters one of the two working spaces 7 of the power cylinder 4, after which the hollow piston 6 begins to move to one of the sides of the power cylinder 4. Income to the extreme position, the hollow piston 6 compresses the spring 13, and the spring-loaded ball 16 exits the recess and the stem 10 is instantly switched. And so the cycles are repeated, i.e. the installation is in operation. After that, the timber is fed through the face opening of the receiving section of pipe 1 to the sector spring-loaded grippers 8, which catch the timber and push it into the pipeline. connected to the device, where the spring-loaded sector folding stoppers 2 keep the timber from sliding downwards. Claim device for lifting timber, including hinged stoppers, spring-loaded sector grippers, power cylinder and tubular stand, characterized in that, in order to simplify the design of the device, the power cylinder is equipped with a ring-partition with a switching mechanism made in the form of a spring-loaded rod with longitudinal channels , while in the annular partition there are holes for inlet and outlet of compressed air. Sources of information taken into account during the examination 1. USSR author's certificate No. 160706, cl. E 21F 13/04, 1962. 2. Certificate of authorship on application no. 2440422 / 22-03, cl. E 21F 13/04, 1977 (prototype). I I ij / // // // jf / sfcsssst sssifeN & s sssss Z: epSZp2ZZZZ2Z ZZ22te -2ZZ ± 2Z2 2ZZS: SZ 15 n 12 V / g Phi2.