SK422010U1 - Shaft gladhand of two shafts, capable of transmitting torque and axial forces - Google Patents

Abstract

Connection and disconnection of shafts by gladhand not required physical strength, is quick and easy. It provided a system of leaf springs and union pipes, both the locking shaft. Shaft is quick to link firmly locked and provided automatic centering shaft.

Description

TWO SHAFT QUICK COUPLER

Technical field

The technical solution relates to the quick coupling and uncoupling of two shafts transmitting both rotational movement and axial forces. The technical solution falls into the mechanical engineering in terms of production and use, although its use in other sectors is not excluded.

BACKGROUND OF THE INVENTION

In the current state of the art, different forms of flexible rings are used to move two coupled shafts where different special tools need to be used to change / disconnect shafts. Commonly, various tools are currently used for the purpose of coupling and uncoupling the shafts, e.g. quick-change tools on machine tools, where in reality it is not a quick manipulation, but on the contrary, it is often physically and time-consuming to disengage both shafts and damage them.

The essence of the technical solution

These shortcomings are overcome by the proposed quick coupling solution described in this application, which consists of an input shaft, an output shaft with leaf springs and a sliding sleeve. Leaf springs (springs) are made in one piece with output shaft - they are a fixed part. The end of the input shaft is provided with a shaped latch with a protrusion engaging the same latch with a groove on the output shaft. This system ensures automatic centering of the shafts and prevents them from shifting sideways during operation (misalignment), which is a common problem in practice. After joining the two shafts in this way, the sliding sleeve is moved up to the stop, which locks the entire coupling system by means of two pre-sprung leaf springs on the output shaft engaging the recess in the sliding sleeve. The cross-sectional profile of the input shaft and output shaft is in the form of a double-sided circle so that it can be inserted in only one position into a sliding sleeve, the interior of which is shaped equally. This prevents the shafts from turning inside the sleeve and locks the joint of the two shafts firmly.

Opening of the quick coupling is very easy - the shafts can be disconnected immediately by pressing the leaf springs and sliding the sliding sleeve back (see enclosed Fig. 1-direction O-Z).

The shaft quick coupler can be used to connect both fixed shafts as well as cardan shafts or bowden systems (flexible shafts). Any type of such shafts can be fixedly attached to the input and output shafts designed by me, forming part of the quick coupling.

This utility model offers the following advantages over currently used systems:

- Coupling and uncoupling of shafts requires no tools or physical strength and is quick and easy,

- The shaft quick-coupling is firmly locked after coupling and ensures a secure connection of the shafts during operation of the device,

- Shaped latches at the ends of the shafts with a protrusion and a groove ensure the alignment of the input and output shafts,

- Accidental disconnection of shafts due to vibration / load is avoided (common in practice).

The particular design of the quick coupling material and its strength and flexibility depends on the magnitude of the forces transmitted in the particular system used.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution and more precise understanding of the operation of the quick coupling is evident from the attached drawings:

Fig. 1 - Longitudinal section - quick coupling unlocked (O-Z direction = unlock-lock)

Fig. 2 - Longitudinal section - quick coupling locked

Fig. la - 3D view - quick connector unlocked

Fig. 2a - 30 view - quick coupling unlocked - unfolded

EXAMPLES

The shaft quick coupling consists of an input shaft 1 which is terminated by a shaped latch engaging the counter shaft of the output shaft 3, wherein the engaging portions of the input shaft 1 and the output shaft 3 are covered by a sliding sleeve 2 secured by leaf springs P1, P2. and, in addition, the cross-sectional profile of the input shaft 1 and output shaft 3 is in the form of a double-sided truncated ring so that it is insertable in one position into the sliding sleeve 2, the interior of which is shaped equally.

The use of the proposed shaft quick coupling is general, for any system using both rotary motion and axial forces, where it is necessary to ensure a quick and firm and safe connection and disconnection of the shafts (input and output). The use of a quick coupling is not limited to the coupling of the shafts, but can serve e.g. and as a closure for a secure and extremely strong connection and quick disconnection of ropes, chains, belts, etc., even in other industries than mechanical engineering.

The solution can be used e.g. for the following applications:

Flexible drives - Tachometers, tachographs,

- Tachometers,

String mowers with flexible shaft.

The tested functional model used to connect the shafts in the engine using a bowden system showed all the positive prerequisites of the proposed solution. A plurality of leaf springs P1 and P2 can be used to increase the security of the connection.

Ing. Peter Dobrodenka

Claims (1)

PROTECTION REQUIREMENTS Shaft coupler, characterized in that it comprises an input shaft (1), which is terminated by a contoured latch engaging the counter shaft of the output shaft (3), wherein the engaging portions of the input shaft (1) and the output shaft (3) are covered by a sliding sleeve ( 2), secured by leaf springs (PI, P2) located on the output shaft (3), the cross-sectional profile of the input shaft (1) and the output shaft (3) having the shape of a double-sided truncated circle so that it a sliding sleeve (2), the inside of which is equally shaped.