NTTM — THE VILLAGE

THE CAR ROOF. For transportation of bulk cargo: flour for bakeries, cement on construction sites, fertilizers on the field — in recent years increasingly used cars with special pnevmotsitami. They are very comfortable, as they provide minimal losses during loading, unloading and transportation.

 

But this car has a significant drawback: the narrow “specialization”. But, say, in agriculture requires a versatile vehicle, what are the usual side cars.

 

They can carry everything. However, bulk cargo transported in the body, even if the slits of his “sealed”, much sprayed under the action of the oncoming air flow.

 

Young innovators, participants NTTM of the Institute of mechanization of agriculture has developed a sealing cover for the body of the car ZIL-MMZ-555. It is a removable box without a bottom, mounted on the body and its special closing, folding like the bellows of an accordion, cover. It is formed by small transverse plates held together by elastic bands that play the role of hinges. Thanks to them, and the levers connecting the movable plate with the cable, all the shelter by the manual actuator is shifted to the cockpit and folds up in a vertical package, opening the body.

 

 

 

This device not only saves and protects the goods but also significantly increases the volume of the body. Compared to existing new shelter has less weight.

 

Accumatively on the basis of the Mari Republican Association “agriculture” created a similar device, but the top cap it is made in the form of a soft canopy made of canvas or rubberized fabric. To move along the extended side walls of the body stretched rope, and at the two sides strengthened “cross-country” tracks from the corners 15X35 mm; it’s moving the rollers of the cross bars attached to the canopy.

 

The whole system is driven by a handle rotating shaft with a drum for coiling the cable. Of the four cross bars, moving the rollers along the guide rails, only the last one, closest to the back Board, connected to the cable. They dragged the plank then assemble the canopy to the cockpit, stretch it to the rear Board on which the shelter is attached to the hooks.

 

To comply with the parallel movement of the slats and prevent them from the guide between the strip and the roller put a restrictive washer.

 

… REPLACEMENT THREAD. Modern technology knows the two most common ways of connection parts: welding and carving. And if the first wins in strength and losing due to non-releasable, the second, on the contrary, if necessary to separate parts, but often wears out quickly or is broken by the excessive load.

 

An original way to repair threads developed by the innovators of the State all-Union scientific research technological Institute of repair and operation mashinno-tractor Park N. Korolev, V. Belan and S. Burstein. They offered the damaged thread, replace… replacement.

 

To do this, the innovators have created and self-locking helical threaded inserts, and tool kit to install them in the holes.

 

 

 

 

 

So what are these “spare parts”? They look like a tightly twisted coil spring, but the wire is not round, but diamond shaped cross section. While the outer sharp edge it serves as a thread for screwing the insert into the hole being repaired, and the interior replaces the stripped threads. Self-locking insert is characterized by having a hexagonal coil that prevents it from unscrewing.

 

To restore the defective thread the hole first rassverlivajut to the next size of the core or the corresponding fine thread. Then tap cut the required thread, for example M8 — M10X1,25; for M10 — M12X1,5 and so on; and to a depth slightly greater than the length of the insert: M6 — 0.5 mm; for M8 — 0.6; M10 — 0.8; M12 — 0.9; M14 — M16 — 1 mm.

 

The thus prepared hole is blown with compressed air to remove the shavings, and with a key are screwed or self-locking helical threaded inserts, which for the purpose of temporary technological lead.

 

Device key shown in the figure. The threaded insert is embedded and the window down a rope, and driver easy rotation is entered in the box and on to the tip until the bottom part of the key does not seem the first round with a leash. Then set the key on the hole being repaired and without pressure screw to insert until the top coil will not be below part surface by 0.5 — 1.0 mm.

 

After this key is removed from the hole, instead it inserts a piercer and a sharp blow to the top of the striker is cut down technological leash insertion, facilitated by nadela shown in figure 2 (view a).