SU48361A1 - Device to prevent impact on the front cover of the piston cylinder when it is disconnected from the crosshead - Google Patents

Description

When the piston rod and the cylinder are disconnected from the cylinder, yjs, ap piston and cylinder head may occur.

To prevent such a shock, a brake device is proposed that acts on the piston rod as a brake with the regulator closed and releases the rod from braking when the regulator is opened.

In the schematic drawing of FIG. 1 shows a longitudinal section of the device; FIG. 2 is a side view thereof; FIG. 3 is a longitudinal section of another device for making the device; FIG. 4 is a side view of the latter; FIG. 5 is a longitudinal section of a third form of fixture; FIG. 6 is a side view of this device; FIG. 7 is a longitudinal section of the fourth shape of the tool and FIG. 8 is a side view of the latter.

The piston 6, located in the cylinder 4 and pressed from the bottom by the spring 5. is equipped with a wedge 8 (Fig. 1), its end between the ends d, the cuffs of the brake brackets 7 that are rotatable around the axis 10 and compressed in opposite direction to each other g ruzhinok} 9 and in the absence of vapor pressure on the piston 6 pressing under the action of this spring, on the piston rod 11.

When steam 7 enters cylinder 4 through tube, it presses on piston b and

compresses the spring5, and the wedge 8, the entrance to the gap between the brake caliper /, pushes them, so that the latter cease to press on the piston rod.

In the second and third forms of this device, the lever 12 (Fig. 3, 4, 5 and .6) articulated with the piston 6 (Fig. 3, 4, 5 and .6), when there is no steam in the cylinder 4, pushes the roller 13 through the action of the spring 5, which is pivotally attached to The rods 14 of its pins presses the pads 2 (Fig. 3, 4) rotating or about the brackets / (Fig. 5, 6) rotating about the axis 10 (Fig. 5, 6) to the piston rod 11, and the rod is braked. When steam is admitted through the tube 7 into the cylinder 4, the roller 13 rotates in the other direction and moves the pads or brackets away from the piston rod, as a result of which the braking stops.

In the fourth embodiment, the rod 15 pivotally fastened to the piston 6 (Figs. 8 and 7) rotates the sleeve 16 under the action of the spring 5, which, through the rollers 77, presses the washer 3 rotating about the axes 10 to the piston rod 77, which then brakes. Breaking occurs when rotating the clips 16 in the opposite direction due to the admission of steam into the cylinder 4 through the tube 7.

The subject matter of the invention.

Prevention device

hitting the front cover of the cylinder

the piston when disconnecting it from the crosshead. kopf when driving a steam locomotive without steam,

characterized by brake application

brackets / (Figures 1, 2, 5 and 6) or pads 2 (Fig. 3 and 4) or washers 3 (Figs. 7 and 8), pressed on the piston rod by springs 5 and pressed from it by steam acting on piston 6, articulated by a system of levers with the specified brake elements.

figb

PFig4