SU701730A1 - Apparatus for sorting round lumber - Google Patents

Description

(54) DEVICE TO SORT ROUND FOREST MATERIALS

The invention relates to the forest industry, and specifically to devices for sorting round timber and can be applied in sorting and sorting and rafting units for rafting.

A device for sorting round timber is known, comprising a feed conveyor, a ramp with hatch holes covered by beams.

However, this device is not reliable and is not efficient in operation due to the complexity of the design due to the presence of many wear parts.

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

This is achieved by installing a trolley on the overpass above each hatch hole, at the head of which there is a probe and a pair of stops, pulled out by an electromagnet, in the circuit of which a normally open relay is connected with a normally closed contact connected to the probe.

FIG. 1 shows a diagram of the proposed device for sorting round

timber; in fig. 2 shows a trolley in plan; in fig. 3 is a side view of the trolley; in fig. 4 is a cross-section of the trolley.

The device for sorting round

Timber includes scraper tpaHCporter 1, overpass 2, movable trolley 3,

shock absorbers 4, troblock system 5,

Counter rail 6, stop stops 7.

The trolley consists of two cargo beams 8, placed on two axles 9, at the ends of which rollers 10 are mounted on roller bearings 10. At the front end of the trolley, stops 12 are attached to the squares 11 connecting the cargo beams, which are pulled out by electromagnets 13 and feeler gauge 14. Counter-loaded 15.

The device works as follows.

The logs are moved by the scraper conveyor 1 along the overpass 2. The cart 3 in its initial position with its cargo beams 8, located at the same level with the rails, closes the hatch into which the logs are sorted.

If it is necessary to reset a log, a tracking system will be sent to the hatch - addressing to reset the log will give a pulse to the relays in the electromagnet 13 circuit, the circuit closes and the stops 12 will extend, standing in front of the log coming in on them. The trolley, under the influence of the log on the stops, moves a distance and, consequently, opens the hatch at which the log falls into the drive. When a log falls into a manhole, it encounters a probe 14, which is connected to a normally closed contact of an electromagnet 13, rejects it and thus opens contact E — the electromagnets circuit opens and the stops 12 return to their original position under the weight of the carriage. The cart, under the action of the counterweight 15, returns to its initial position through the cable-blocking system 5, hitting shock absorbers 4. The time for returning the trolley to the initial position depends on the diameter of the sorted log and the weight of the load acting on the trolley.

In the case when the log has to be shipped through the hatch, the stops are not extended and the log slides on the cargo beams of the 8th trolley, the hatch is mine. In order to not open the hatch with the force of friction, the trolley is structurally designed so that when the log is at the front end of the cargo beams, the rear end of the trolley is slightly raised and supported by the load beams against the stop stops 7. The rear rollers of the rear rollers protect the trolley from tipping.

Claims (1)

Invention Formula A device for sorting round timber, containing a feed conveyor, an overpass with hatch holes covered by beams, characterized in that, in order to increase reliability and efficiency, a trolley is installed above the lower hatch hole on the ramp, in which the probe head and paired stops are mounted , put forward by means of an electromagnet, in the circuit of which a normally open relay is connected, with a normally closed contact connected to the probe. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 417187, cl. B 65 G 17/00, 06.05.72. but / 777 //// FIG. / t // k5 / 2 / / n V five