SU208452A1 - BRAKE CHAMBER FOR PNEUMATIC BRAKE DRIVE OF VEHICLES - Google Patents

Description

Brake chambers for a pneumatic brake drive of vehicles are known, comprising a housing and a housing cover, which are provided with flanges, having facing each other outwardly diverging conical surfaces, a diaphragm between the housing and the flap having conical surfaces in contact with the conical surfaces of the flanges, and the collar covering the edges. The described brake chamber differs from the known ones in that the connecting collar is provided with an annular wedge protrusion located on its inner surface and a corresponding hollow in the corresponding part of the diaphragm located between the conical surfaces of the body edges and the cover.

Such a constructive implementation increases the durability of the diaphragm of the brake chamber.

The drawing shows a longitudinal section of the brake chamber.

The brake chamber consists of a housing L of the cover 2 of the housing, a diaphragm 3, a stem 4, a return spring 5, a spring of a sealing washer 6, a sealing washer 7 and a connecting collar 8. The housing / and the cover 2 of the housing are made with flanges 9 having flow facing each other outwardly tapered surfaces 10. The connecting yoke is provided with an annular wedge lug 11 located on its inner surface, which fits into the depression on the front part of the diaphragm.

When assembling the chamber, the diaphragm 3 is placed between the housing cover 2 and the housing /. The connecting collar 8 with its annular wedge ledge // is inserted into the conical circular hollow on the front part of the diaphragm 3 and then tightened with two tension bolts (not shown).

When the collar is tightened, the housing cover 2 and the housing / are pulled out against the stop of the flanges into the side shelves of the connecting collar with subsequent compaction of the joint due to the divergence of the edges of the end part of the diaphragm 3 when it is compressed by the conical wedge lug of the collar entering its annular conical hollow.

Such an embodiment of the connection of the housing with the lid allows the separation of the sealing point of the joint with the place of the greatest bending stresses of the diaphragm, which will lead to an increase in its durability.

Subject invention

flanges with outward-facing conical surfaces, a diaphragm with conical surfaces in contact with the conical surfaces of the edges, and a flange that covers the edges of the collar, which, in order to increase durability

the diaphragm, the connecting collar is made with an annular wedge protrusion located on its inner surface, which forms a corresponding depression in the front part of the diaphragm located between the conical surfaces of the edges of the body and the cover.