Spring release device

 

(57) Abstract:

Spring release device can be used in gearboxes and transmissions containing friction disc brakes. The device contains a spring, axis, fixed in the axial direction in the casing wall, and the sleeve collar. The last set on axis with the possibility of longitudinal movement. Thus the flange communicates on one side with a spring, and the other with pressure disc brakes. The proposed device allows to simplify the Assembly process. 1 Il.

The invention relates to mechanical engineering and can be used in gearboxes and transmissions containing friction disc brakes.

You know spring release device brakes, containing the spring and guide rod (axle) and selected as a prototype. To ensure operation of centrifuging devices at the friction disc is a special form with the tabs, which affect spring release device, allocating the extreme friction disc and through him the booster. Design extreme friction disc requires a connector housing parts for installation during Assembly.

The aim of the invention is the creation of p is on in the Cabinet parts, does not require the manufacture of extreme friction disc special form.

The objective is achieved by using in spring Timna device sleeve with flange, install it on the axis without detent with the possibility of longitudinal movement along the axis.

The use of bushings with flange eliminates the need for special forms of extreme friction disc.

Rotation of the sleeve with the shoulder axis indifferent to the functioning of the proposed spring squeezing device, so you do not need fixing sleeve flange against rotation around the axis. The lack of fixation of the sleeve with the shoulder on the axis and its axis make an axis fixed in the axial direction, fixing the walls of the enclosure, which reduces the axial dimension of the design, as it does not require additional space to move the axis.

To build the proposed device does not require any special connector or through a window in the housing, is not required to solve the problem of sealing, that is, to make the cover, gasket, fasteners and mounting, which reduces the complexity of manufacture and Assembly design. The decrease as a consequence, the number of seats possible leakage of the lubricant increases nudity compliance with a criterion of "novelty".

The proposed solution can be implemented in the gearbox, such as excavator, that is industrially applicable.

In the drawing there is shown a spring release device.

The proposed device comprises a bushing 1 washer, spring 2, axis 3, the sleeve 4. During Assembly of the bushing 1 washer spring 2 and the sleeve 4 are installed in the slots of the Cabinet parts and are shifted to the periphery. Then placed a stack of disks of friction of the friction brakes. After this bushing with flange, springs and bushings prorezyvajutsja axis 3. The device is assembled.

When enabled, the friction brake pressure plate 5 acts on the shoulder of the bushing 1, moves axis 3 of the sleeve 1, squeezing through them spring 2. When the force is removed the brake springs move the sleeve 1 and through them to the pressure plate 5 to its original position.

The diameter of the flange is selected sufficient for contact with the teeth of the pressure disk 5 and to provide sufficient clearance with the rotating disk 6 friction.

Spring release device, a friction brake, containing the spring and axle, characterized in that it is provided with a sleeve collar fixed on the axis with the possibility of longitudinal displacement is ICEM axis fixed in the axial direction in the casing wall.

 

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