SU16246A1 - Driver's tap for automatic air single-wire brake - Google Patents

Description

In the proposed crane operator for automatic Air single-wire brakes, gradation and equalizing pistons are used, by displacing which hinges; QJ produced by turning the knob of the distribution valve spool using | Valve and channel systems measure the air pressure in the main air duct and a change in the degree of braking or deceleration corresponding to this;

None h: ertezh1E fzhg. 1 depicts a general view of the proposed crane; FIG. longitudinal section of the crane through the graduation piston chamber; FIG. the same, through the chamber of the balancing piston; FIG. 4 is a cross-section of the crane along the line AB in FIG. 1; FIG. 5-circuit brakes.

In Camera A (Fig. 2), a tightly fitting joyful piston 1 is placed, dividing this chamber into two parts, of which part “j using channel 3 communicates, with -reservoir 5a - (FIG. 5), and, part ad- using channel 4 and, fitting o (fig. 1) - with a tank .5. Piston and arm lever 24 moves

the spool 30; at the same time the movement of por-, shn I to the right corresponds to the movement, the spool 30 to the left. In another chamber B, a balancing piston 2 (Fig. 3) is placed, which also separates this chamber by two hours), of which part 1 through channel 6 (fig. 3 and 4) and chamber 2 of the graduation piston 1 is cooled tank 5b, and the other part of the "z- with the main air duct 10 (Fig. 5). From the side of the chamber “i, the movement of the balancing piston is limited by its emphasis on valves 7 and 8, the chamber of which 9 is connected with the camrra from, through the channel 10, and through the process of It-with the main air duct. On the side of the chamber “2”, the movement of the balancing piston is limited by its stop in the valve 12 and 13, the chamber 14 of which is connected to the main reservoir 2 by a canister (Fig. 5). A valve 17 is placed in the third chamber к of the crane, which moves the handle 18 (Fig. 1) along its own mirror. The R. 18 of the driver’s crane has three basic positions: emergency, emergency braking and graduation (service) braking and holidays.

The air from the main tank 2 (Fig. 5) through the process 16 (Fig. 3) of the driver’s valve enters channel 15 into chamber 14 and simultaneously through channel 17 (Fig. 4) through valve of differential 11 and channel 17 of valve spool 17, where normal air pressure is established.

When setting the crane handle, the engine is in the position corresponding to the emergency leave, the air from the chamber P through channel 20 (Fig. 2), the notch 21 of the slide valve 30, through channel 22 and at the same time through the handle using an open handle 34 (FIG. 1) valve 36 through channel 4 - (figs. 1 and 4) enters — into the chamber “2 gradation and portage” (fig. 2) and, with its pressure, pushes this port-shnB towards lid 23. In turn, the gradation piston using The lever 24 moves to the opposite side (in Fig. 1-left) the spool 30, which at the same time opens the channel 25. And the air from the kama T s on channel 25 via channel 26 klaaan 27 ai enters the chamber from the channel 3 in the tank 5a (FIGS. 2 and 5). Due to the elasticity of the spring of H. 26, the air pressure in chamber a and tank 5a will be a little lower, the chamber pressure rag, which always ensures the extreme position of the piston 1. At the same time, the air from chamber 02 through channel 4 5 (figs. 4 and 5) enters the reservoir 5c, through channel 6 (fig. Zi4) the chamber of the equalizing piston 2, where the pressure pushes this piston towards the chamber in., At which the jib, in turn, pushes the valves 12, 18 and the air through the chamber 14 through the channel 1Е1 and the process 16 will come from the main The second reserve of the accumulator is into the chamber 621 and from here along channel 10 through the appendage 11 - into the main air duct, as a result of which all the braking devices will be quickly charged. JaK then. The pressure in the chamber “2 of the balancing piston, and consequently, in the main air duct, is comparable with the pressure of the chamber“ i (therefore, with the pressure of chamber G and reservoir 58), - piston 2, under the action of valve springs 12, 13 moves toward the chamber “1, and the valves 12, 13 stop

the access of air from the main tank to the main air duct and, thus, the pressure in the latter will always be equal to the pressure of chamber G. If it were. the force of any air pressure in the main air duct will fall, it will also be accompanied by a pressure drop in the chamber, then pressure from the side of the chamber “i porgen 2 will again be released, valves 12, 13 and thus all air leakage from the main The air duct will automatically replenish from the main tank.

When setting the handle 18 of the driver's crane during the holding brake of the pet brake 17 using its notch 28, channel 29 and notch 31 of the spool 30 (Fig. 2), as well as channels 22 and 32. the camera informs the camera about the gradation with the atmosphere, as a result, in the air pressure chamber;), the air will decrease. Since chamber A2 is connected with channel 6 to equalizing piston 2 by the channel 6, the pressure will also drop at the last, and air pressure from the chamber side will move the equalization chamber to the camera watchman in and open valves 7 and 8. As a result, The chambers 9 (Fig. 3) through channel 10, from chamber 62, as well as along process 11 from the main air duct will escape into the atmosphere, while the pressure in the main pipeline will decrease and cause braking. At the same time, when the air pressure in the chamber .az decreases, and consequently, in tank 5e, the gradation piston 1, under pressure on it from chamber a and tank 5a, will move towards chamber a and move to IROTIVO. T1OZNNU 30 an offset 30 which will close the channel 25 and thereby finally close the chamber ai of the gradation piston - from chamber D, and also block the channel 20 and automatically stop the release of the air of the chamber “2” and, consequently, of the chamber in the balancing piston. As soon as the air pressure in chamber 2 is equal to the pressure in chamber ffj, piston 2, ps), by the action of the spring of valve 7, moves toward chamber b, and valve 8 will stop the release of air from chamber 9 and, therefore, from the main air duct to the atmosphere. With further movement of the handle 18 of the crane of the driver, the pressure of the main air duct will further decrease, and this reduction will automatically be colored by the method indicated above.

A three-way stop of the handle 18 to the emergency braking position — with its protrusion 33 (FIG. 1), the valve 35 will be pressed down, as a result, the air from the chamber ag will quickly escape into the atmosphere and the pressure in the chambers “2 willows will drastically decrease. Then the balancing piston with pressure, air from the chamber side is fast, nejJeMetsits is towards the chamber ej and opens valves 7 and 8, and the air with wide channels from the main air duct in the ways indicated above will quickly escape to the atmosphere. When the pressure in the chamber Og gradation poris is lowered by pressure from the chamber side "1 and tank 5a, it moves towards chamber a and moves the spool 30, which closes channel 25 and disassembles it and chamber G from chamber O, channel 20 remains open (as shown in Fig. 2). Owing to; This is the air from both chambers a and ej, and n from the chamber at. and the main duct goes into the atmosphere.

With steady braking, in order to produce a gradual tempering, it is necessary to slowly fill the main air duct with air. To this end, the handle 18 of the driver’s crane needs to be shuffled; not immediately to the extreme position of the driver, but gradually. When setting 18 to the position corresponding to the CTByioniiee gradual release, the spool 17 will directly open the channel 20 of the spool 30 and the air through this channel, - and also through the notch 21 and the channel 22 will flow from chamber P to chamber 3 of the gradation piston 1 and press the piston to the side of the lid 23. In turn, the gradation piston 1 will move the valve 30 in the opposite direction (by line, left), as a result of which the channel 20 will overlap the outer overlapped valve 17 and air access. .in camera a- stop. Enrolled

the air into chamber oz through channel 6 (fig. 3 and 4) will also flow into the chamber in the balancing port 2 and with its pressure; m will smoothly move this piston towards the chamber in-, while the piston 2 will open valve 12 and the air from the chamber 14 and, consequently, from the main tank will replenish the chamber ff2i and, consequently, the main air duct gradually until those iop, until the air pressure in the chamber in is not equal to the pressure in the chamber j j. Then the piston 2 is moved by the spring of the valve 12 to the side of the chamber in, and the a-valve 12 will automatically stop the access of air from the main tank to the main air duct. With further movement of the crane handle of the driver, the pressure in the main air duct will increase further, and this increase will automatically stop as indicated above.

Subject yatenta.

1. The crane driver, for an automatic overhead air single-wire toro Mo3aj characterized by the use of

1) the gradation piston 1 (Fig. 2), using the lever 24 to move the spool 30, which interacts with the mixed pistol 17,

2) a balancing piston 2 (Fig. 3), controlling the movement of the spring valve 12, —the release of the spring temper, and the spring valve 13 — emergency release, as well as the spring valve 7, —a service braking, and the spring valve 8, —ass emergency braking . peremegreniem what pistons, valves and spools, dependent on Tt.ii and chip installation spool 17 and the interaction of air pressure in the chambers of the valve and tanks and even 5c (Fig. 5) adjacent to the valve, it is necessary to switch the corresponding channels to properly increase or a decrease in air pressure in the main air duct and the severe degrees of braking or deceleration caused by this difference.

2. Applied to the faucet, described in item 1, valves 85 and 36, opened by the corresponding cams 33 and 34 on the handle 18 of the crane intended: first for ext. braking by fast

a decrease in pressure in chambers a (fig. 2) and b1 (fig. 3), and the second for emergency holidays, in order to quickly increase the pressure in these chambers.

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FIG. 2

1: 31:;: