SU1421556A1 - Arrangement for controlling vehicle clutch - Google Patents

Abstract

The invention relates to transport engineering, and more specifically to devices that control the coupling of vehicles. The purpose of the invention is to simplify the design. In the device, the control valve is made in the form of a nozzle and an elastic elastic toroidal damper installed with tension on the cylindrical annular groove of the control rod with the possibility of interaction with the annular protrusion of the latter connected to the pedal via a cable. 4 il.

Description

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FIELD OF THE INVENTION The invention relates to a transport engineering, namely to coupling control devices for vehicles,

The purpose of the invention is to simplify the design and improve the layout of the clutch control devices.

Fig. 1 shows a kinematic diagram of a device for controlling the engagement of a vehicle; Fig. 2 shows an actuator with a control valve, a longitudinal section J in Fig. 3, node I in Fig. 2, a control valve in its initial position; figure 4 - the same, in the working position.

The device for controlling the clutch comprises a pedal 1, a pull 2, a fork 3 connected to the housing 4 of the operating mechanism 5 by the clutch release lever 6, axes 7 and 8, the control rod 9, to the control valve — a toroid valve 10. The single control rod 9 the end communicates through the axis 8c of the housing 4, and the other end has an annular groove with edges 11 and 12 (Fig. 3), which are seats for the elastic-elastic toroidal valve 10 forming with the nozzle 13 (Fig. 2) the movable element 14 of the actuating mechanism; 5 the control valve.

The cavity A (fig. 3), formed by the edges of the annular groove, communicates through the radial 15 and the axial 16 holes of the control rod with the atmosphere,;

The toroidal valve 10 is mounted on the stem 9 of the control with tension and with the possibility of alternate interaction with the nozzle 13 of the moving element 14, the face 11 of the annular groove and the end surface 17 of the annular protrusion .18 of the rod 9 of the control Sfig Z) or with faces 11 and 12 of the annular grooves.

The center of the cross section, 19 of the toroidal valve 10. when the valve interacts with the end surface 17} by the face 11 and the nozzle 13 is located at a distance from the face 11 of the ring groove (FIG. 3). Due to the fact that the center of the cross section 19 of the toroidal valve 10 is located between the face 12 and the axis of the annular groove on the control rod 9, a moment acting in this position occurs. flap 10 installation

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on two faces 11 and 12 of the cylindrical groove (figure 4), i.e. in position corresponding to the control valve when the pedal is depressed. Installing the valve 10 with a tension on the cylindrical groove of the control rod 9 provides the necessary tightness at the extreme positions of the valve 10, namely, when the valve 10 contacts the two faces of the cylindrical groove or face 12 , with the nozzle 13 and the end surface 17. The contact of the valve 10 with the end 17 of the annular protrusion 18 fixes the position of the valve 1.0, and also contributes to the appearance of additional elastic forces in the toroidal valve 10 itself, posobstvuyuschih displacement valve in return direction to a position in contact with the two faces 11 and 12 of the groove-cylindrical control stem 9, excluding it from sticking.

The cavity B (fit 2) of the actuator, which communicates with the source of the hole 20, is formed by the inner surface of the housing 4, the annular protrusion 18 with the grooves 21, the rod 9, the flap 10 and the end 22 of the movable element 14. The movable element 14 is rigidly connected the housing 4 of the actuator 5. The hole 23 of the nozzle 13 is connected with the piston cavity B (Fig. 2) of the movable element.

An actuator 5, rigidly connected to 24, is pivotally mounted on a fixed support 25 (Fig. 1).

The plug 3, preloaded by the spring 26, has grooves-27, the same grooves 28 are in the housing 4 of the actuator. Khanizma.

The device works as follows. .

When you press the pedal, the G t ha 2 acts on the plug 3, squeezing the spring 26, and through the axis 8 moves the control rod 9. The toroidal valve 10 is freed from the action of the nozzle 13 and sits on the verge P and 12, separating cavity B with the atmosphere (Fig. 4). At the same time, the compressed air enters through the holes 20, 21 and 23 into the cavity B.

Under the pressure of the compressed air of the cavity B, the movable element 14, together with the housing 4, moves along with the pressure 2, acting on the 3U2 market.

Step 6 of disengaging the clutch through axis 7, moving it.

When stopping the pedal 1 in an intermediate position, the control rod 9 is also stopped. In this case, the control valve — the toroid-shaped valve 10 comes into contact; with the nozzle 13, the entry of pressure into the cavity 23 is stopped, the movable element 14 is stopped. When the force on the pedal 1 is terminated under the action of the spring 26, the control rod 9 and the valve 10 are set to their initial position (FIG. 3) and communicate with the atmosphere through the holes 23, 15 and 16. The movable element 14 moves to the initial position .

In the absence of pressure in the pneumatic system, the mechanical disengagement of the clutch occurs. When the pedal is depressed, 1 ton ha 2 acts on the clutch release lever 6 via fork 3 and axle 7, which transfer force to the clutch release lever 6, moving it.

Claims (1)

Claims. A device for controlling the coupling of a vehicle, containing a pedal connected to the clutch lever, an amplifier including a control valve, the stem of which is provided with radial and axial channels is connected to the pedal and an actuator whose piston cavity communicates with the pressure source through the valve control, and the movable element is associated with the power off lever, spring-loaded plug, characterized in that, in order to simplify the design, the control valve includes a nozzle with an end protrusion made on the end part of the movable element, and an elastic resilient toroidal flap, with a groove at one end of the rod; the flap is fitted with a groove on the groove with the ability to interact with the nozzle butt nozzle, groove communicated through radial and axial channels with atmosphere, the end of the rod with a groove is placed with a gap in the nozzle, communicated with the piston cavity of the actuator, while the other end of the rod is connected with the lever disengagement. X , / f SXVCN: cpi / f.f - rrf 21 n n 23 15 18 FIG. FIG.