SK7895Y1 - Multi-plate clutch - Google Patents

Abstract

The lamella clutch is formed by lamellas (1) in which center is a larger hole (2). The lamellas (1) also have symmetrically spaced eight smaller openings (3) in which are inserted the rivets (4), through which the lamellas (1) are connected. The end lamellas are connected by rivets (5) through the four smaller holes (6) to the hubs (7) having a groove (8) in the middle.

Description

Technical field

The technical solution of the multi-plate shaft balancing coupling relates to devices where there is a need for mechanical interconnection of shafts, their mechanisms, for the purpose of transmission of speed and torque.

BACKGROUND OF THE INVENTION

Shaft couplings form a very widespread mechanical assembly in mechanical engineering. In this product group, the clutch subclass used to mechanically interconnect the shafts of the mechanisms for the purpose of transmitting speed and torque, while at the same time compensating for the deficiencies of the relative positions of the coupled shafts, is a frequently used subset of clutches. In addition to reliably transmitting speed and torque, the couplings need to compensate at the same time for the undesired effects of shaft position unevenness in the axial direction, misalignment and axis misalignment of these shafts. Such resilient (balancing) shaft couplings allow a play-free angular synchronous transmission of torque between two shafts. There are various embodiments of such devices, the most important being the following types.

Jaw clutch: The shaft clutch consists of two cast iron hubs and one flexible element that is resistant to oil, heat and various chemicals. This design ensures safe power transfer between the drive and driven shafts, reducing dynamic load and torsional oscillations.

Coupling with polyamide ring: The coupling consists of two hubs with external teeth, which are connected to one (polyamide) bushing with internal teeth. They belong to the group of flexible couplings and provide the perfect solution against axial, radial or radial coupling. angular displacements. The spacers are made of rubber and therefore provide a flexible connection between the two shafts.

Lovejoy shaft coupling: These shaft couplings are equipped with a rubber spacer. The coupling has no pre-drilled hole and is equipped with a star-shaped spacer. An interesting feature of this type of coupling is that the rubber spacer is mounted from the outside, ie from the top of the hub. This step greatly facilitates the replacement of the spacer, without the need to remove the coupling from the machine and the assembly time of the spacer.

Shaft coupling with rubber plug: Thanks to its robust construction, this coupling is resistant to sudden changes and loads. The clutch with rubber plug needs little maintenance. The plugs are easily replaceable in a short time. It is an ideal choice for heavy loads and is pre-drilled. It is used in industry in the production of concrete machines.

Clutch with rubber tire. Couplings with rubber tires (sheath) are able to compensate for maximum oscillations in each plane without causing excessive pressure on the coupling. The rubber sheath excels well in resonance and oscillation, with heat resistance between -50 ° C to + 50 ° C (rubber version) and -15 ° C to +70 ° C (choloprene version).

Diaphragm clutch: The characteristic elastic part of the clutch is a bellows, which, due to its harmonics shape, dampens parallelism and shaft angle errors as well as shaft end fluctuations. They are commonly used for actuators and limit switches.

Spiral Servo Coupler: These couplings are ideal for servomotors, robotics, medical machines and for applications where great flexibility and axial compensation are required. Flexible servo couplings are made of aluminum, stainless steel or plated steel.

Double-loop clutch: The double-loop clutch contains a molded plastic element attached to the steel hubs, creating a compact design that is an efficient clutch with exceptional flexibility. It is ideal for transmitting rotation with smaller drives. This type of clutch works without friction, wear and noise. Due to its low torsional stiffness, it is less suitable for applications requiring a very precise connection.

Hardy Clutch: The Hardy Clutch perfectly compensates for large angular differences between shafts with a resilient element and perfectly attenuates input torque shocks. It consists of two metal elements with a flexible rubber insert between them. It is pre-drilled or with a collet.

Shaft chain clutch: The shaft chain clutch consists of two hardened tooth sprockets and one double-row chain. The entire coupling is protected by an aluminum case and rubber rings on both sides. These rubber bands protect the clutch from dust and dirt. The sleeve provides protection even in the event of overloading and thanks to the rubber rings the lubricant does not leak from the coupling, which extends the service life of the coupling.

Self-lubricating toothed clutch: The clutch consists of one internal and one external toothed hub. The hub material is carbon steel. Between the teeth of mutually inserted hubs is a flexible insert, which is made of special self-lubricating material. The clutch is suitable for transmitting high torque. The operating temperature range is -20 ° C to +80 ° C.

Steel plate clutch: Steel plate clutches consist of two hub sides, multiple rubber pins and one or more steel plates. Thanks to its design, the torque is evenly transmitted through all screws, rubber pins and steel plates. These couplings do not require lubrication or maintenance. They can be used at high speeds. They can also be used with reversing drives. Their torsional stiffness is considerable.

Oldham clutch: The clutch with the cross disc (Oldham clutch) consists of two equal parts and a centering cross disc. The centering disc with protrusions fits into the recess in both clutch discs. The clutch is able to compensate for smaller shaft misalignment and at the same time it enables expansion movement of the shafts. The coupling is demanding on manufacturing accuracy and assembly. It is used where there is little misalignment between the axes of the connected shafts, but their parallelism is maintained. This connector can also be used as an expansion joint.

Fixed shaft couplings: The fixed shaft couplings provide a disconnectable connection between two shafts. This solution does not eliminate angular differences between shafts and axial direction differences.

The issue of these links is the subject of very extensive documentation, below are some publications and patents related to this topic:

Sclater, N. C'lutches and brakes. Mechanisms and Mechanical Devices - Sourcebook. 5th edttion. New

York: McGraw Hill. 2011. pp. 211-234. ISBN 978-0071704427;

• Black man. 5i. Machine Technical Handbook (1 and 2i), SNTL. Prague 197) ;;

Peeken, H., Troeder. Ch. Lilastische Kupplungen. Ausľíihrungen. Ľigenschaťten. Calculations. Springer.

Berlin, 1986, ISBN 3-540-13933-8;

• Lovejoy. Inc. Products. Couplings & Power Transmission: Shaft Locking Devices. Lovejoy-inc. com Retrieved 7 January 2015;

• AHypbCB B. HL CnpaBOWHíK κθΗθτργκτορ; · ι- \ ι; · ιηΐΗΗθθτροΗτο.ι; ι: B 3 t. HL PI. TKcctkoboíU-8-e

H3A-, nepepaô. h tton. - M .: MlaniHHBCcpocHHC, 2001. - T. 2 - 912 c. ISBN: 5-217-02964-1, BBK

34.42a2, Y2K 621.001.66 (035); _v • Uxa. Mi: Clutch for transmitting rotary motion between misaligned shafts. Patent number. 261946. Date.

10.02.1989;

• Hausdorf. A clutch .. for transmitting movement between two shafts. Patent number. 249016 ,. The date.

12.03.1987;

Walker Ml. Oldham Coupling. United States Patent US3404545 A. You give. 08.10.1968;

• Chahine. P, .alpha. R. Sealed flexible coupling with torsion acceptance. United States Patent

US8042840 B2, Date: 25.08.2011.

In addition to the mentioned advantageous properties, said flexible (alignment) shaft couplings also have some disadvantages. For the most part, it is difficult to manufacture them, some of them have relatively low stiffness and a considerable part is suitable to compensate for some shortcomings of the mutual position of the connected shafts only to a small extent. Hitherto practice requires a shaft coupling that would compensate for the misalignment of parallel shafts as well as non-parallel shafts. At the same time, it would also compensate for unevenness in the axial direction, be sufficiently rigid and at the same time without the extraordinary demands on the production technology. The proposed technical solution is very close to meeting these requirements.

The essence of the technical solution

These deficiencies are eliminated by the proposed technical solution. The principle of the proposed vane shaft alignment coupling consists in that it consists of a number of slats having a larger opening in the center and eight or more smaller apertures that are symmetrically formed in the slats. Rivets are gradually inserted into the smaller holes in the slats, by means of which the slats are gradually connected. The outer slats are connected by means of rivets, through four smaller holes (for rivets), to cartridges which have a center hole for sliding the shaft with a keyway in the middle.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution is explained in more detail by means of a drawing, FIG. 1 shows the overall arrangement of the functional parts of the apparatus, FIG. 2 shows (front view) the arrangement of the functional parts at the inlet of the device, FIG. 3 shows (in frontal view) the plate of the proposed clutch.

EXAMPLES

In FIG. 1, 2 and 3 shows an example of an embodiment of a vane shaft equalizer according to the present invention. The lamella shaft alignment coupling is formed by lamellas 1 in which a larger aperture 2 is in the center. The lamellas (1) have symmetrically spaced smaller apertures 3, into which the rivets 4 are inserted, by means of which the lamellas 1 are successively connected. The outer slats are connected to the hubs 7 by means of rivets 5, through four smaller rivet holes 6, which have a tongue groove hole (9) in the middle.

Industrial usability

The device according to the proposed solution can be compromised everywhere, although there is a need for a mechanical connection of the shafts, their mechanisms, to each other for the purpose of transmitting speed and torque. This applies mainly to mechanical engineering, automation technology, mechatronics, robotics and the like.

Claims (1)

PROTECTION REQUIREMENTS Vane shaft equalizing coupling, characterized in that θ is punched by lamellae 20 (1), in the center of which there are a plurality of blades (2) and symmetrically spaced ο, οι smaller o-rings (3) into which the rivets (4) are inserted. ), by means of which the slats (1) are connected successively, the outer slats being connected by means of rivets (5) through four smaller holes (6) to the rivets (5), connected to cartridges (7) having an opening (8) in the center with groove and tongue (9).