RU2625477C2 - Gear clutch - Google Patents

Abstract

FIELD: machine engineering.

SUBSTANCE: invention relates to a gear clutch (30), which includes two joined coupling halves (27, 28). Each coupling half (27, 28) comprises at least one part (3, 4) with external gears and one part (5, 6) with internal gears. The mentioned parts in the respective coupling half (27, 28) form a convex linkage (13, 14), with at least one resilient sealing element (18, 47) associated with the drive connection (13, 14). At least one zone (56) in which the geared half couplings (27, 28) and the at least one region of the inner gear portion (56) and/or the (3, 4) parts are connected by at least one resilient element (35) is placed by the outer gear.

EFFECT: electrical shaft insulation and reduced vibration.

28 cl, 12 dwg

Description

The invention relates to a gear coupling, which includes two connected coupling halves, each coupling coupling comprising at least one part with external teeth and one part with internal teeth, which in the corresponding coupling half form a convex coupling connection, the coupling coupling being equipped with at least one elastic sealing element.

Due to the constant desire to create more compact designs of drive systems with a simultaneous increase in their specific power, gear couplings are becoming increasingly important. When transmitted through geometric locking, torque and rotational motion, they provide compensation for relatively large angular, axial and radial displacements. The constant increase in power requirements of drive systems used, for example, in wind power plants, in rolling mill drives and electric traction drives (trams and ground metro, high-speed trains) necessitates the creation of gear couplings with high specific power.

DE 19644884 C1 describes a gear clutch 1 with two coupling halves 27, 28, in which both coupling halves 27, 28 are rigidly interconnected by means of taper screws 23. FIG. 1, a double gear coupling 1 is thus connected, in which both coupling halves 27, 28 have a coupling housing 2 with two parts 5, 6 of the coupling housing made in the form of two bushings, and two coupling elements 3, 4 located inside the coupling housing 2 made in the form of a hub, while the connecting elements 3, 4 form inside the casing 2 of the coupling the inner zones of the connecting elements 17, 65, between which there is a flange zone 56.

The coupling housing preferably contains two symmetrically made parts of the coupling housing, which are fastened by means of conical screws 23 to the flanges 42, 43 facing each other and placed on the coupling housing parts 5, 6 and comprise a radially directed inner cover 45, 46, which seals the inner zones of the connecting elements 17, 65.

The connecting elements 3, 4 along their outer circumference 7 have external gear rims 9, 10 with convex connecting teeth. The housing 2 of the coupling along its inner circumference 8 has internal gear rims 11, 12. The external gear rims 9, 10 of the connecting elements 3, 4 and the internal gear rims 11, 12 of the housing 2 of the clutch form a convex gear ring gear 13 in parts 5, 6 of the sleeve housing , 14, which is sealed and protected by means of a sealing element 18, 47, and in which due to the relative movement between the connecting elements 3, 4 and parts 5, 6 of the clutch housing, relative movement between the internal gear rims 11, 12 and gear rims 9, 10. Relative movement occurs as a result of axial and / or angular deviation of the connecting elements 3, 4 relative to parts 5, 6 of the clutch housing.

Accordingly, on the inner sides 19, 20 between the coupling body 2 and the connecting element 3, 4, a ring-shaped cover 45, 46 is provided that covers the gear teeth 13, 14 and the corresponding inner zones of the connecting elements 17, 65. The axis of the coupling housing is indicated by at 59.

Between the clutch housing 2 or parts 5, 6 of the clutch housing and each connecting element 3, 4 there is a corrugated pipe 18, 47 fixed on both connecting elements 3 and 5 and on the parts of the clutch housing 4 and 6, which acts as a sealing element , which seals the corresponding convex driving gear ring 13, 14 and imparts springing properties to the coupling body 2 in its predetermined position.

Instead of corrugated tubes 18, 47, other resilient sealing elements may also be used to seal the driver connection 13, 14.

As a result of FIG. 2 mutual deviation of the connecting elements 3, 4 (hubs) there is a relative mutual displacement of parts 5, 6 of the clutch housing (bushings), which is presented in the form of an angle of displacement and deviation δ between the axes 15, 16 of the symmetry of the parts of the housing and the axis of symmetry 59 of the clutch housing.

In addition, axial and radial displacement compensation is provided. Rigidity is ensured by the use of metallic materials. This provides good damping characteristics of traditional gear couplings.

Typically gear couplings are made of metal. As a result of this, they have high torsional rigidity and very little damping ability between the gear coupling half facing the drive and the gear coupling half facing the drive. High rigidity and low damping ability can adversely affect the vibrational characteristics of the transmission as a whole. In the case of particularly sensitive drives, a requirement is made for matching the stiffness with the frequency of the drive’s own vibrations, while the dimensions of the coupling installation area inside the drive system must be preserved, that is, in many cases a high specific power is not required. The use of purely elastic couplings, for example wedge or lever couplings, is impossible, because due to the materials used and the required displacement characteristics, they have a significantly lower specific power and therefore must have larger dimensions to transmit torque and compensate for the resulting displacements.

The disadvantage is that the gear couplings cannot provide electrical isolation between the gear coupling halves and the drive. Thus, in the design of couplings, particular attention should be paid to the electrical insulation of the couplings.

WO 2013/041082 describes an elastic whole wedge ring. Presented in FIG. 3, the wedge ring 40 contains at least several axially directed rings arranged around the circumference of the ring and made in the form of a wedge of metal fasteners 21 and 22 with a through hole 24, 25 directed radially relative to the axis of the ring, while the through holes 24, 25 provided for at least one threaded connection directed radially from the outer circumference of the ring 37 to the inner circumference of the ring 36, designed to fix the fasteners 21, 22 on two fitted parts of the coupling, An elastic rubber spring element 41 is placed between adjacent adjacent fasteners 21 and 22 around the circumference by a vulcanization method, which is mounted by vulcanization method on adjacent wedge-shaped metal fasteners 21 and 22, due to which a wedge ring made in one vulcanization operation is alternately formed around the ring, alternately placed metal wedge-shaped fasteners 21 and 22 and located between them by elastic spring elements 41.

The basis of the invention is the task of creating a gear clutch, the design of which provides reliable compensation for the occurring displacements, a significant reduction in the rigidity of the connection (clutch), damping vibration and electrical insulation.

The problem is solved due to the characteristics of paragraph 1 of the claims.

In a gear coupling with two connected gear coupling halves, each coupling half has at least one part with external teeth and one part with internal teeth, which form a convex coupling connection in each corresponding coupling coupling, wherein each coupling connection is equipped with at least one elastic a sealing element, in this case, according to the characterizing part of claim 1, in at least one zone in which the gear coupling halves are connected and / or in at least one zone of the part with the inside at least one elastic element is placed with the lower teeth and / or parts with external teeth of at least one half-coupling.

Depending on the design of the gear coupling and the type of placement of the elastic element, it may take the form of a disk, ring, cylinder or wedge.

In principle, parts with internal teeth are parts of a coupling with an internal gear rim, and parts with external teeth are parts of a coupling with an external gear rim.

In the gear clutch, the parts with internal teeth aligned with the gear half couplings are made in the form of bushings, and the coordinated parts with the external teeth are made in the form of hubs, while the elastic element in the connecting zone is connected with the first part with the internal teeth of the first gear half-coupling and with the second part with the internal teeth of the second gear coupling half.

In the gear coupling of another embodiment, the parts with internal teeths related to gear half-couplings can be made in the form of a sleeve connected to the hub section without teeth and having an internal gear rim, and the corresponding parts with external teeth can be made as a part of the hub with an external gear crown, and the elastic element in the connecting zone is connected with the first part with the outer teeth of the first gear half coupling and with the second part with the outer teeth of the second gear half coupling.

In this case, the elastic element can be made in the form of a ring and located between the sleeve and the tooth-free part of the hub.

The elastic element can be installed in the following positions of parts with external teeth and parts with internal teeth of gear half couplings:

- between the first part with the internal teeth of the first gear coupling half and the second part with the internal teeth of the second gear coupling or

- between the first part with the outer teeth of the first gear coupling half and the second part with the inner teeth of the second gear coupling or

- between the first part with the internal teeth of the first gear coupling half and the second part with the external teeth of the second gear coupling or

- between the second part with the internal teeth of the second gear coupling half and the first part with the external teeth of the first gear coupling half.

The elastic element can be installed in the following other positions of parts with external teeth and parts with internal teeth of gear half couplings:

- as an element of the part with internal teeth of one of the gear half-couplings and / or

- as an element of the part with the outer teeth of one of the gear coupling halves.

At least two metal side elements for holding can be matched with the elastic element, while the elastic element placed between the two side elements is obtained as a single connecting element by vulcanization.

An elastic connecting element containing an elastic element can also be fixed between the opposite inner sides of the gear coupling halves and provide an elastic connection between the two gear coupling halves.

In the case of the execution of the elastic connecting element in the form of a disk with double-sided disk side elements, threaded holes can be provided on the side elements, while threaded holes for threaded fastening of the elastic connecting element are provided on the inner opposing flanges of the gear coupling halves.

The elastic element can be directly fixed to the inner gear part by vulcanization and through the corresponding first flange of the first gear coupling half is rigidly connected to the second flange of the second gear coupling half.

An elastic connecting element in the form of a rubber sleeve with a cured method of elasticizing the elastic element can be axially placed between both interconnected tooth couplings of the coupling body, while the elastic element is made in the form of a sleeve by vulcanization between adjacent axially directed side elements.

As a connecting element, a coupling with a wedge ring can also be placed on which the fastening elements are alternately placed, and between the adjacent fastening elements are elastic elements made in the form of spring elements.

Corresponding elastic elements can be placed by vulcanization between adjacent fasteners.

Wedges (wedge packs) that are preloaded by pressing between the fasteners formed on the closing loop can form a closed ring.

In this case, a wedge (packet) ring made in the form of an elastic connecting element can be made in the form of either a closed ring or a ring composed of segments.

The internal gear parts of the gear coupling halves can be rigidly connected to the fasteners of the wedge ring with alternating fasteners in a radial threaded connection with respect to the axis of the gear coupling.

The elastic connecting element may have at least one bearing seat relative to parts with internal teeth, while the bearing seats may be made in the form of a sliding or rolling bearing.

At least one thrust sliding bearing may be arranged between the part with the inner teeth aligned with the part with the inner teeth of the gear coupling half and the part with the inner teeth coordinated with the inner cover of the gear coupling.

At least one radial plain bearing can be placed between the annular sleeve aligned and screwed onto the corresponding gear half-coupling part with the internal gear half and the second gear half-internal part with the second gear half-coupling.

At least one mechanical breakdown prevention element matched to the elastic connecting element can be placed in the flange zone of the inserted elastic connecting element.

The element for preventing breakdown can be made in the form of a finger and a mating part fitted to it.

The elastic sealing element intended for the lead connection can be made in the form of an elastic metal corrugated pipe, an elastic rubber element or an elastic plastic element.

The elastic element can be made in the form of an electrical insulator.

The elastic element may consist of vulcanized rubber.

The elastic element can be made annular in the form of a disk between two metal disk side elements or in the form of an axially elongated cylindrical ring between two metal, axially elongated side elements or in the form of a wedge-shaped directed to the axis of the gear coupling, molded, and also fitted to the tension between two adjacent fastening elements made in the form of side elements, an elastic, rubber-like vulcanized spring element.

Improvements and special forms of execution of the proposed, according to the invention, gear coupling are given in the dependent claims.

In more detail, the invention is illustrated by means of the drawings, which show:

- FIG. 1 is a schematic longitudinal section of a known conventional gear coupling in a static state, which contains gear coupling halves that are directly rigidly interconnected on the inner sides of the corresponding coupling housing,

- FIG. 2 is a schematic longitudinal section of a conventional conventional gear clutch according to FIG. 1 in a dynamic state that comprises gear half couplings that are directly rigidly interconnected on the inner sides of the corresponding clutch housing to represent the resulting angular, axial and radial displacements

- FIG. 3 is a general schematic view of a known wedge ring,

- FIG. 4 is a schematic longitudinal section of a gear coupling according to the invention with two connected gear couplings and an elastic connecting element that is inserted between the inner sides of the housing of the corresponding gear coupling and is directed in the radial direction,

- FIG. 4a is a schematic longitudinal section of a gear coupling according to the invention, similarly to FIG. 4, with gear couplings rigidly connected directly on the inner sides of the corresponding coupling body in a dynamic state to represent the resulting angular displacement,

- FIG. 5 is an enlarged longitudinal section of the elastic connecting element according to FIG. 4 with metal side elements and an elastic element in the form of a disk, which is placed by way of bilateral vulcanization between the metal side elements,

- FIG. 6 is a schematic longitudinal half section of a second gear coupling according to the invention with two gear couplings connected, the elastic connecting element in the form of a rubber sleeve with a disk-shaped elastic element vulcanized on both sides located between both corresponding parts of the coupling, located in the axial direction

- FIG. 7 is a schematic longitudinal half section of a third gear coupling according to the invention with two gear couplings connected, the elastic connecting element in the form of a wedge ring between both gear half couplings located in the radial direction,

- FIG. 8 is a schematic longitudinal half section of a gear clutch with two connected gear half couplings, according to FIG. 7, the elastic connecting element in the form of a wedge ring in the radial direction is placed between both gear half-couplings, while a thrust bearing is placed between the fastening ring, coordinated with the first sleeve of the first gear half-coupling, and the inner cover on the second sleeve, matched with the second gear half-coupling ,

- FIG. 9 is a schematic longitudinal half section of a gear coupling with two connected gear half couplings, according to FIG. 7, the elastic connecting element in the form of a wedge ring is placed in the radial direction between both gear half-couplings, while a radial plain bearing is placed between the fastening ring matched with the first sleeve of the first gear half-coupling and the inner cover on the second sleeve, matched with the second gear half-coupling ,

- FIG. 10 is a schematic longitudinal half section of a first gear coupling according to the invention with two gear couplings connected and an elastic connecting element located between the inner walls of the corresponding gear coupling half and several breakdown prevention mechanical elements located in the flange zone,

- FIG. 11 is a schematic longitudinal section of a toothed coupling half with an elastic connecting element comprising an elastic element, with parts with internal teeth and parts with external teeth that form drive connections.

In the following FIG. 4, FIG. 4a and FIG. 7 are considered together, while first of all, a generalization of all the essential features of the gear couplings proposed according to the invention is made.

In FIG. 4, which is basic, is a schematic longitudinal section through a first gear coupling 30 with two gear couplings 27, 28 connected, each of the gear couplings 27, 28 comprising at least one part 3, 4 with external teeth and one part 5 , 6 with internal teeth, which form in the corresponding gear half coupling 27, 28 a convex driver connection 13, 14, with at least one sealing element 18, 47 matching the driver connection 13, 14.

According to the invention, in at least one zone 56, in which the gear coupling halves 27, 28, according to FIG. 4 or FIG. 7, 8, 9, are connected inside the gear coupling 60, is placed in a segmented form, at least one elastic element 35 or a certain number of elastic elements 41.

According to the invention, in FIG. 11 another gear coupling 80 in at least one area 81 of the part 71, 73 with internal teeth and / or in the area of part 70, 72 with external teeth with at least one gear half coupling 27 or 28, at least one elastic element 35.

It is essential that in the gear couplings 30, 50, 60, 80 described below in more detail, at least one elastic member 35 or 41 is provided, which substantially damps the vibrations arising in the gear couplings 30, 50, 60, 80 and modifies coupling stiffness.

In a static state, that is, at rest, according to FIG. 4, the axis 15 of the first gear coupling half and the axis 16 of the second gear coupling half coincide with the axis 59 of the gear coupling. In contrast, in the dynamic state of FIG. 4a, the axis 15 of the first gear coupling half and the axis 16 of the second gear coupling half do not coincide with the axis 59 of the gear coupling.

The elastic element 35, 41, depending on the type of its placement inside the gear coupling can be made in the form of a disk, ring, cylinder or wedge.

In the gear couplings 30, 50 described below in detail, the parts 5, 6 with internal teeth, aligned with the gear half couplings 27, 28, are made in the form of bushings, and the coordinated parts 3, 4 with the external teeth are made in the form of hubs, while the elastic element 35 the connecting zone 56 is connected to the first part 5 with the internal teeth of the first gear coupling half 27 and with the second part 6 with the internal teeth of the second gear coupling half 28.

Parts 5, 6 with internal teeth are, in principle, parts of a coupling with an internal gear rim, and parts 3, 4 with external teeth are parts with an external gear rim.

In another gear coupling 80, for example according to FIG. 11, parts 71, 72 with internal teeth, matched with gear half couplings 27, 28, are made in the form of a sleeve 74, 75 having an internal gear rim and connected to a hubless part 76, 77 having no teeth, and the corresponding parts 70, 72 with external the teeth are made in the form of a part of the hub with an external gear rim, while the elastic element 35 in the connecting zone 56 is connected to the first part 70 with the external teeth of the first gear coupling half and with the second part 72 with the external teeth of the second gear coupling half 28.

The elastic element 35 can also be made in the form of a ring and placed between the sleeve 74, 75 and not having teeth part of the hub 76, 77 in the area 81.

At least the elastic element 35 can be placed in the following positions of parts 3, 4, 70, 72 with external teeth and parts 5, 6, 71, 73 with internal teeth of gear half couplings 27, 28:

- between the first part 5, 71 with the internal teeth of the first gear coupling half 27 and the second part 6, 73 with the internal teeth of the second gear coupling half, as shown in the examples of FIG. 4 or FIG. 11 or

- between the first part 3, 70 with the outer teeth of the first gear coupling half 27 and the second part 4, 72 with the outer teeth of the second gear coupling half 28 or

- between the first part 5, 71 with the internal teeth of the first gear coupling half 27 and the second part 4, 72 with the external teeth of the second gear coupling half 28 or

- between the second part 6, 73 with the inner teeth of the second gear coupling half 28 and the first part 3, 70 with the outer teeth of the first gear coupling half 27.

The indicated configurations of the gearing elements relate to the coupling options of FIG. 4 and FIG. eleven.

Further, the elastic element 35 can be placed in the following positions of parts 5, 6, 71, 72 with internal teeth and parts 3, 4, 70, 72 with external teeth of gear half couplings 27, 28:

- as an element of part 5, 6, 71, 72 with internal teeth of one of the gear half couplings 27, 28 and / or

- as an element of part 3, 4, 70, 72 with the outer teeth of one of the gear half couplings 27, 28.

At least two metal side elements 33, 34, 53, 54, 21, 22 for fixing can be matched to the elastic element 35, 41, while the elastic element 35, 41 is placed between the two side elements 33, 34; 53, 54; 21, 22 by vulcanization, forming with them an elastic connecting element 29.

The elastic connecting element 29 can be fixed between two opposite inner walls 19, 20 of the gear half-couplings 27, 28 and form an elastic connection between both gear half-couplings 17, 28.

In the case of a disk version of the elastic connecting element 29 with double-sided disk side elements 33, 34, threaded holes 38, 39 can be provided in these double-sided disk side elements 33, while the threaded holes 38, 39 for the threaded connections 31, 32 of the elastic connecting element 29 is made on the inner flanges 42, 43 of the gear half couplings 27, 28.

The elastic element 35 can be directly secured to the internal tooth parts 5, 6 by vulcanization and through the corresponding first flange 42 of the first gear coupling half 27 is rigidly connected to the second flange 43 of the second gear coupling half 28.

The elastic element 35 can also be directly fixed by vulcanization on parts 3, 4 with external teeth.

An elastic connecting element 29 in the form of a rubber sleeve with a cured vulcanization method of the elastic element 35 can be placed in the axial direction between the two toothed coupling halves 27, 28 of the coupling body 2 connected to each other, while the elastic element 35 in the form of a sleeve is fixed by vulcanization between adjacent axially directional side elements 53, 54.

A gear coupling 60 with a wedge (packet) ring 40, with alternately mounted fasteners 21, 22 and with elastic elements 41 located between adjacent fasteners 21, 22 between both gear half-couplings 27, 28, can be used as an elastic connecting element.

The elastic elements 41 are secured by vulcanization between adjacent fastening elements 21, 22 and are preferably made in the form of wedges.

Packs of wedges that are pre-pressed between the fasteners that form the closing loop form a closed ring.

Thus, the wedge ring 40 made as the elastic connecting element 29 can be either in the form of a closed ring or in the form of a segmented ring.

Parts 5, 6 with the internal teeth of the gear half couplings 27, 28 can be rigidly connected to the fasteners 21, 22 of the V-ring 40 in rotation with the fasteners 21, 22 in radial screwing 55 with the direction to the axis 59 of the gear coupling.

The elastic connecting element 29 may be equipped with at least one bearing seat relative to the internal teeth portion 5, 6, while the bearing seats 63, 68 are made in the form of sliding bearings or rolling bearings.

At least at least 5 toothed coupling halves 27, 28 aligned with the inner teeth 5,6, with a screwed fastening ring 57, and an inner cover 46, 45 can be fitted with at least 6 inner gears 28, 17 that are aligned with the toothed coupling half, with inner teeth One thrust bearing 68.

At least one radial plain bearing 63 may be disposed between the corresponding gear half coupling 27, 28 and the screwed ring sleeve 62 and the screwed ring sleeve 62, which is aligned with part 5, 6 with the inner teeth.

At least one breakdown prevention mechanical element 64 matched to the elastic coupling element 29 can be placed in the flange zone 56 of the integrated elastic coupling element 29.

The breakdown prevention member 64 may consist of a finger and an associated part.

The elastic sealing element 18, 47 can be made either in the form of an elastic metal corrugated pipe, or an elastic rubber element, or a plastic element.

The elastic member 35 may have insulating electrical properties.

The elastic member 35 may consist of vulcanizable rubber.

The elastic element 35 can be made in the form of a ring or disk between two metal annular or disk side elements 33, 34 or in the form of an axially elongated cylindrical ring between two axially elongated side elements 53, 54 or in the form of a wedge-shaped directed to the axis 59 couplings and molded, as well as adapted to the tension between two adjacent fasteners 21, 22 made in the form of side elements, an elastic, rubber-like, vulcanized spring element 41.

Below is a more detailed description of the gear couplings 30, 50, 60, 80 according to FIG. 4-11:

In FIG. 4 shows an elastic element 35 according to the invention between the first clutch housing part 5 of the first gear half-shaped clutch part 27 of the first gear coupling half 27 and the second clutch part-shaped part 6 of the inner gear clutch part of the first gear coupling clutch 28.

Moreover, presented in FIG. 4, the elastic member 35 is placed inside the elastic coupling 29, which is radially directed to the coupling axis 59 between the first part 5 with the inner teeth of the first gear half coupling 27 and the second part 6 with the inner teeth of the second gear half coupling, the built-in elastic coupling 29 an elastic element 35, which is cured by a vulcanization method inside on the walls of the side elements 33, 34.

The housing 2 of the coupling preferably consists of substantially partly symmetrical parts 5, 6 of the housing of the coupling, which through the first threaded connection 31 and the second threaded connection 32 are mounted on the flanges 42, 43, which are located on the parts 5, 6 of the housing of the coupling and facing each other to a friend. The first flange 42 refers to the first gear coupling half 27, and the second flange 43 refers to the second gear coupling half 28. The corresponding parts 5, 6 of the coupling body are equipped with a radially directed sealing inner zone 17, 65 of the coupling parts, an inner cover 45, 46, the first inner cover 45 and a second inner lid 46.

In FIG. 4 shows the first part 5 of the coupling housing and the second part 6 of the coupling housing in the form of bushings, as well as the first part 3 of the coupling and the second part 4 of the coupling in the form of hubs, while the first shaft 66 can be placed in the first hub 3 and 4 in the second hub - second shaft 67.

Similarly to FIG. 1 and 2, parts 3, 4 of the coupling have on their outer circumferential region 7 an outer gear ring 9, 10 with convex connecting teeth. The clutch housing 2 on its inner circumferential region 8 has an inner gear rim 11, 12. The outer gear rims 9, 10 of parts 3, 4 of the clutch and the internal gear rim 11, 12 of the clutch housing 2 form a sealed and protected elastic joint in parts 5, 6 of the clutch housing the sealing element 18, 47 is a convex gear gear 13, 14, in which, in accordance with the relative movement between parts 3, 4 of the clutch and parts 5, 6 of the clutch housing, relative mutual movement of the internal gear crowns 11, 12 and the outer gear crowns 9, 10 is provided . Relative movement occurs as a result of axial and / or angular deviation of the coupling parts 3, 4 relative to the coupling body parts 5, 6.

On the inner walls 19, 20 between the housing 2 and the parts 3, 4 of the coupling, respectively, there is a disk-shaped design protecting the drive gears 13, 14 and the corresponding free space 17, 65 of the cover 45, 46 - the first cover 45 and the second cover 46.

Between the housing 2 or parts 5, 6 of the coupling housing and each agreed part 3, 4 of the coupling can be placed fixed, on the one hand, on both parts 3, 4 of the coupling and, on the other hand, on parts 5, 6 of the coupling housing an elastic sealing element 18, 47 in the form of an axially directed corrugated pipe, which seals the corresponding convex driver gear 13, 14 and sets the position of the coupling body 2 in the spring position.

The first corrugated pipe 18 and the second corrugated pipe 47 are made of metal material.

Instead of corrugated pipes, other resilient metal sealing elements may also be used to provide sealing to the lead connections 13, 14.

In FIG. 4a is a schematic longitudinal section through the proposed according to the invention gear coupling 30, similar to that shown in FIG. 4, with rigidly connected to each other directly on the inner walls 19, 20 of the corresponding parts 5, 6 of the coupling housing by means of an annular elastic connecting element 29, including the elastic element 35, by gear half couplings 27, 28 in a dynamic state to represent the resulting angular displacement with an angle δ displacement.

Similarly to FIG. 2, by means of the deviation of the coupling parts 3, 4 shown in FIG. 4, the relative movement between the parts (bushings) 5, 6 of the coupling housing is set, and the relative movement is shown by the offset / deviation angle δ between the rotation axes 15, 16 of the housing parts and axis 59 of rotation of the clutch housing.

Thus, the gear clutch 30 provides compensation for axial and radial as well as angular displacement. True rigidity is due to the use of metallic materials. However, the advantage of the gear coupling 30 according to the invention is that by using the elastic member 35, vibrations arising between the gear half couplings 27, 28 are generally damped compared to the gear coupling 1 of the prior art without the elastic member 35, thereby making targeted adaptation and electrical isolation.

In principle, gear couplings are made up largely of metallic materials.

The elastic connecting element 29 with the fixed vulcanization method of the elastic element 35 can be placed in the following positions of the coupling parts 3, 4 and the coupling parts 5, 6 of the coupling halves 27, 28 of the coupling 30, namely:

- between the first sleeve 5 of the first gear half coupling 27 and the second sleeve 6 of the second gear half coupling 28, as shown in FIG. 4, or

- between the first hub 3 of the first gear coupling half 27 and the second hub 4 of the second gear coupling half 28 or

- between the first sleeve 5 of the first gear coupling half 27 and the second hub 4 of the second gear coupling half 28 or

- between the second sleeve 6 of the second gear coupling half 27 and the first hub 3 of the first gear coupling half 27.

The last three possible positions of the hubs 3, 4 and bushings 5, 6 are not shown in the figures.

The elastic element 35 can be made in the form of a disk between two metal disk-shaped side elements 33, 34 (Fig. 4, Fig. 4a, Fig. 5, Fig. 10) or in the form of a cylindrical ring elongated along the axis between two metal rings, elongated along the axis , lateral elements 53, 54 (Fig. 6) or in the form of a wedge-shaped coupling directed to the axis 59 and molded, as well as inserted between two adjacent fasteners 21, 22 formed as side elements, an elastic rubber-like vulcanized spring element 41 (Fig. 7 Fig. 8; 9).

In FIG. 5 enlarged compared to FIG. 4, a longitudinal sectional view of an elastic connecting element 29 with two metal annular side elements 33, 34 — the first side element 33 and the second side element 34 — and fastened by vulcanization between them on both walls by a disk-shaped elastic element 35 is shown. On both side elements 33, 34 on both sides there are threaded holes 38, 39 - the first threaded hole 38 and the second threaded hole 39 -, which are provided for threaded connections 31 and 32 of the connecting element 29 on the flanges 42, 43 parts 5 and 6 of the coupling housing.

In FIG. 6 shows a schematic longitudinal half section of a second gear coupling 50 according to the invention with two gear coupling halves 27, 28 connected, wherein the elastic connecting element 29 in the form of a rubber sleeve with an integrated, vulcanized, cylindrical elastic element 35 is placed in the axial direction between two gear couplings rigidly connected to each other 27, 28. A rigid connection is achieved by a threaded connection 49 in the threaded holes 48 between both flanges 42, 43 of the housing parts 5 and 6 ufty. In this case, the built-in elastic element 35 is also fixed by vulcanization on the axially directed first side element 53 - the outer part of the flange sleeve - and on the axially directed second side element 54 - the inner part of the sleeve.

The elastic element 35 can also be attached to the sleeve 6 by direct vulcanization.

A similar design of the gear coupling 50 with an axially integrated elastic element 35 can be obtained by placing it in the area of the first gear coupling half 27 (not shown).

In FIG. 7 shows a schematic longitudinal half section of a third gear coupling 60 according to the invention with two gear couplings 27, 28 connected, wherein the elastic coupling element 29 in the form of an elastic coupling with a wedge ring 40 is placed in the axial direction between both gear half couplings 27, 28 .

Explained below are possible mounting options for the wedge ring 40, which is an elastic coupling element 29.

The end portion 69 of the second sleeve 6 by means of a radial threaded connection 55 is rigidly connected to the fastening elements 21, 22 of the wedge ring 40, which is an elastic connecting element 29. Through axial threaded connections 51, 52, the fastening elements 21, 22 are mounted on the first flange 42 of the first sleeve 5 Between adjacent fasteners 21, 22, wedged vulcanized elastic spring elements 41 are formed as elastic elements 35.

In addition, the fastening ring 57, which clamps the first cover 45 at least on the first flange 42, is connected via a threaded connection 26 to the first flange 42 of the first sleeve 5. The second cover 46 is fastened by a threaded connection 58 to the end wall of the end portion 69 of the second sleeves 6. Between the mounting ring 57 and the screwed second cover 46 may be free space.

Said bushings 5 or 6 of the gear coupling halves 27, 28 can be alternately connected to the fasteners 21, 22 by means of alternating axial threaded connections 51, 52 and radial threaded connections 55, so that one of the adjacent fasteners 21, 22 has a threaded connection 51, 52, and the other of the adjacent fasteners 22, 21 has a threaded connection 55.

Due to this, not only the embodiment of FIG. 4-6 is a closed material embodiment of the elastic member 35 throughout the entire elastic connecting member 29, but it is also possible to segment the execution of the elastic member of the elastic connecting member 29.

To improve the quality of movement of the elastic connecting element 29 may be equipped with an additional reference point in relation to parts 5, 6 of the clutch housing.

To this end, FIG. 8 shows a third gear coupling 60 with two connected gear half couplings 27, 28, shown in longitudinal half section, the elastic coupling 29 in the form of an elastic coupling with a wedge ring 40 according to FIG. 3 is placed in the radial direction between both gear half-couplings 27, 28. The following is a more detailed description of the support points for various possible mounting options:

An axial sliding bearing 68 is mounted between the aligned mounting ring 57, screwed onto the first sleeve 5 of the first gear coupling half 27, and the second cover 46, on the second sleeve 6, which is aligned with the second gear coupling 28. The fastening ring 57 clamping the first cover 45 is connected by means of a threaded connection 26 to the first flange 42 of the first sleeve 5. The second cover 46 is fixed to the end wall of the end portion 69 of the second sleeve 6 by means of a threaded connection 58.

The end portion 69 is connected to the fasteners 21, 22 by means of a radial threaded connection 55. The fasteners 21, 22 are mounted on the flange 42 by means of axial threaded connections 51. Wedge-shaped vulcanized elastic spring elements 41 are arranged between adjacent fasteners 21, 22, which are made in the form of elastic elements 35.

In FIG. 9 schematically shows a third gear coupling 60 with two connected gear half couplings 27, 28 according to FIG. 7, while the elastic connecting element 29 in the form of a wedge ring 40 in the radial direction is placed between both gear half-couplings 27, 28. Another support place for one of the possible fixing options is described in more detail below:

Between the first toothed coupling half 27, which is aligned and screwed up with the first sleeve 5, to the annular sleeve 62 and the second sleeve 6, a radial plain bearing 63 is placed on the second toothed coupling half 28. The annular sleeve 62 is rigidly connected to the annular element 61, which is threadedly connected 44 to the first sleeve 5 of the first gear half coupling 27. The second sleeve 6 by means of the end portion 69 having the shape of a hollow cylinder closes the flange area 56. The radial plain bearing 63 rests with one side to the annular sleeve 62, and on the other hand to the inner wall of the end portion 69. The end portion 69 is rigidly connected to the fasteners 21, 22 by means of a threaded connection 55. The fasteners 21, 22 by sevyh threaded connections 51, 52 are fixed to the first flange 42. Between adjacent fixing elements 21, 22 are arranged wedge start vulcanised elastic spring elements 41, which are formed as elastic elements 35.

In principle, a combination of at least one thrust sliding bearing and at least one radial sliding bearing can be used as bearing points.

In FIG. 10 is a schematic longitudinal sectional view of a first according to the invention gear coupling 30 of FIG. 4 with two connected gear coupling halves 27, 28, with an elastic coupling element 29 located between the inner walls 19, 20 of the housing 2, 26 of the corresponding gear coupling halves 27, 28, as well as with several mechanical breakdown prevention elements 64 that are aligned with the elastic coupling element 29 and placed in the flange zone 56.

In FIG. 11 schematically shows a longitudinal section of a gear coupling 80 with an elastic coupling 29 and two connected gear couplings 27, 28, each of the gear coupling halves 27, 28 having at least one part 70, 72 with external teeth and one part 71, 73 with internal teeth, which form in the corresponding gear half coupling 27, 28 a convex driver connection 13, 14, while at least one elastic sealing element 18, 47 is matched to the driver connection 13, 14.

According to the invention, in the area 56 in which the gear coupling halves 27, 28 are connected, at least one elastic member 35 is arranged.

According to the invention, in another gear coupling 80 (FIG. 11) in area 81, which in FIG. 11 is indicated by 81, parts 71, 73 with internal teeth and / or parts 70, 72 with external teeth placed at least one elastic element 35, and the corresponding area of parts 70, 72 with external teeth is not shown.

Depending on the type of arrangement of the elastic element 35, it can be made either in the form of a disk or in the form of a ring.

In the gear coupling 80, the resilient member 35 is disposed within the resilient coupling 29 in the connection zone 56 with the first part 70 with the outer teeth of the first gear coupling half 27 and with the second part 72 with the outer teeth of the second gear coupling 28. The first part 70 with the outer teeth has a free end, the first outer gear ring 9, and at the other free end, the first flange 42. The second part 72 with the outer teeth has a second outer gear ring 10 at one free end, and the second flange 42 at the other free end. gies connecting member 29 is fixed to both flanges 42 and 43 corresponding to parts 70, 72 with external teeth. The first part 71 with internal teeth consists of a tooth-free part 76 of the hub and a first sleeve part 74 fixed thereon, which has a first internal gear ring 11. The second part 73 with internal teeth consists of a tooth-free part 77 of the hub and a part fixed thereon 75 sleeve, which has a second internal gear ring 12.

In this gear half-coupling there are also drive connections 13 and 14, which are sealed with an elastic rubber ring 18, 47 as elastic sealing elements.

Zone 81, in which an annular elastic element 35 can also be placed, is located in the area between the threaded connections 78, 79 of the tooth-free parts of the hub 76.77 and the parts 74, 75 of the hub, which have an internal gear ring 11, 12. Located in the zone 81, an elastic member 35 (not shown) also provides significant damping of the resulting vibrations and electrical insulation in the gear coupling 80.

In the gear coupling 80 (Fig. 11), in which the parts 71, 73 coordinated with the gear half couplings 27, 28 with internal teeth are made in the form of a hub hub 74, 75 connected to the tooth-free part 76, 77 with an internal gear ring, and matched with gear half couplings 27, 28 of part 70, 72 with outer teeth made in the form of a hub part having an outer gear rim, the elastic element 35 in the connecting zone 56 is connected to the first part 70 with the outer teeth of the first gear half coupling 27 and with the second part 72 with outer teeth second gear half ufts 28.

Proposed according to the invention, the gear couplings 30, 50, 60 and 80 represent a significant improvement of the known gear couplings 1 according to the prior art and contain at least both connected gear half couplings 27, 28, which according to the prior art compensate for displacements, as well as located between both toothed half couplings 27, 28, elastic connecting elements 29 with the included elastic elements 35, 41 corresponding to the invention for a given modified adaptation of stiffness and further generally for damping oscillations and for electrical insulation inside gear couplings 30, 50, 60 and 80.

List of Reference Items

1 Gear coupling according to the prior art

2 clutch housing

3 The first part of the coupling / hub

4 The second part of the coupling / hub

5 The first part of the coupling housing / sleeve

6 The second part of the coupling housing / sleeve

7 Outer District

8 Inner District

9 First outer gear

10 Second outer gear

11 First internal gear

12 Second inner gear

13 First gear linkage

14 Second gearing

15 The first axis of the gear coupling half

16 Second axis of gear half coupling

17 The first inner zone of the coupling part

18 First resilient sealing element / first corrugated pipe

19 First Inner Wall

20 Second inner wall

21 First fastener

22 Second fastener

23 Set screw

24 first hole

25 second hole

26 Threaded connection for mounting ring 57

27 First gear coupling half

28 Second gear coupling half

29 Elastic connecting element

30 First gear coupling according to the invention

31 First screw

32 second screw

33 First side element

34 Second side element

35 elastic element

36 The inner zone of the ring

37 The outer zone of the ring

38 First threaded hole

39 Second threaded hole

40 Wedge ring according to the prior art

41 Resilient member / resilient spring member

42 First flange

43 Second flange

44 Threaded connection of the annular part

45 First Inner Cover

46 Second inner lid

47 Second resilient sealing element / second corrugated pipe

48 Hole for the set screw

49 threaded connection

50 Second gear coupling according to the invention

51 First axial threaded connection

52 Second axial threaded connection

53 Outer part of flange sleeve / side element

54 Inner sleeve / side element

55 Radial threaded connection

56 Flange area

57 Screwed mounting ring for first inner cover

58 Threaded connection for the second inner cover

59 gear shaft

60 Third gear coupling according to the invention

61 ring part of the ring sleeve

62 ring sleeve

63 bearings deep groove ball bearing

64 Breakdown Prevention Element

65 Second inner area of the coupling part

66 first shaft

67 Second shaft

68 Thrust bearing

69 End

70 Part with external teeth

71 Internal Teeth Part

72 Part with external teeth

73 Part with internal teeth

74 Part of sleeve with internal gear

75 Part of sleeve with internal gear

76 Tooth free part of the hub

77 Tooth free part of the hub

78 threaded connection

79 threaded connection

80 Toothed clutch

81 Zone

δ The angle of displacement of the gear coupling halves.

Claims (38)

1. A gear coupling (30, 50, 60, 80) with two connected gear coupling halves (27, 28), each gear coupling half (27, 28) has at least one part (3, 4; 70, 72 ) with external teeth and one part (5, 6; 71, 73) with internal teeth, which form a convex driver connection (13, 14) in the corresponding gear half coupling (27, 28), moreover, it is coordinated with the driver connection (13, 14) at least one elastic sealing element (18, 47), characterized in that at least in one zone (56) in which the gear half-couplings (27, 28) are connected, and / or, at least measure, in one zone (81) of the part (5, 6; 71, 73) with internal teeth and / or part (3, 4; 70, 72) with the external teeth of at least one gear half coupling (27, 28 ) located at least one elastic element (35, 41). 2. A gear coupling according to claim 1, characterized in that the elastic element (35), depending on the type of its placement, is made in the form of a disk, ring, cylinder or wedge. 3. The gear coupling according to claim 1, characterized in that in the gear coupling (30, 50, 60), the parts (5, 6) matched to the gear half couplings (27, 28) with the internal teeth are made in the form of bushings, and the matched parts ( 3, 4) with external teeth made in the form of hubs, while the elastic element (35) in the connecting zone (56) is connected with the first part (5) with the internal teeth of the first gear half-coupling (27) and with the second part (6) with the internal the teeth of the second gear coupling half (28). 4. A gear coupling according to claim 1, characterized in that in the gear coupling (80), the parts (71, 72) coordinated with the gear half couplings (27, 28) with internal teeth are made, respectively, in the form of a sleeve (74, 75), connected to the tooth-free part of the hub (76, 77) and having an internal gear rim, and the coordinated parts (70, 72) with the external teeth are made, respectively, in the form of a part of the hub having an external gear rim, the elastic element (35) in the connecting zone (56) is connected to the first part (70) with the outer teeth of the first gear coupling half (27) and with Ora part (72) with the external gear teeth of the second coupling half (28). 5. A gear coupling according to claim 4, characterized in that the elastic element (35) is made in the form of a disk or ring and is placed between the sleeve (74, 75) and the tooth-free part (76, 77) of the hub. 6. A gear coupling according to claim 3, characterized in that at least one elastic element (35) is present in the following positions of parts (3, 4) with external teeth and parts (5, 6) with internal teeth of gear half-couplings ( 27, 28): - between the first part (5) with the internal teeth of the first gear coupling half (27) and the second part (6) with the internal teeth of the second gear coupling half (28) or - between the first part (3) with the outer teeth of the first gear coupling half (27) and the second part (4) with the outer teeth of the second gear coupling half (28) or - between the first part (5) with the internal teeth of the first gear coupling half (27) and the second part (4) with the external teeth of the second gear coupling half (28) or - between the second part (6) with the internal teeth of the second gear coupling half (28) and the first part (3) with the external teeth of the first gear coupling half (27). 7. A gear clutch according to claim 4, characterized in that at least one elastic element (35) is present in the following positions of parts (70, 72) with external teeth and parts (71, 73) with internal teeth of gear half-couplings ( 27, 28): - between the first part (71) with the internal teeth of the first gear coupling half (27) and the second part (73) with the internal teeth of the second gear coupling half (28) or - between the first part (70) with the outer teeth of the first gear coupling half (27) and the second part (72) with the outer teeth of the second gear coupling half (28) or - between the first part (71) with the internal teeth of the first gear coupling half (27) and the second part (72) with the external teeth of the second gear coupling half (28) or - between the second part (73) with the internal teeth of the second gear coupling half (28) and the first part (70) with the external teeth of the first gear coupling half (27). 8. A gear coupling according to claim 1, characterized in that the elastic element (35) is placed in the following positions of parts (5, 6, 71, 72) with internal teeth and parts (3, 4, 70, 72) with external gear teeth coupling half (27, 28): - as an element of a part (5, 6, 71, 73) with internal teeth of one of the gear half-couplings (27, 28) and / or - as an element of a part (3, 4, 70, 72) with external teeth of one of the gear half-couplings (27, 28). 9. A gear coupling according to claim 1, characterized in that at least two lateral elements (33, 34, 53, 54, 21, 22) are matched with the elastic element (35), while the elastic element (35 ) is made by vulcanization between both side elements (33, 34, 53, 54, 21, 22), forming with them an elastic connecting element (29). 10. A gear coupling according to claim 9, characterized in that the elastic connecting element (2 9) is fixed between the opposing inner walls (19, 20) of the gear coupling halves (27, 28) and forms an elastic connection between both gear coupling halves (27, 28) . 11. A gear clutch according to claim 10, characterized in that, in the case of a disk-shaped design of the elastic connecting element (29) with double-sided disk side elements (33, 34), threaded holes (38, 39), while the threaded holes (38, 39) for threaded connections (31, 32) of the elastic connecting element (29) are provided on the inner flanges (42, 43) of the gear coupling halves (27, 28). 12. A gear clutch according to claim 1, characterized in that the elastic element (35) is fixed by vulcanization directly to the part (5, 6) with internal teeth or part (3, 4) with external teeth. 13. A gear coupling according to claim 9, characterized in that the elastic connecting element (29) in the form of a rubber sleeve with a built-in vulcanized elastic element (35) is located in the axial direction between the two toothed coupling halves connected to each other (27, 28 ) the case (2) of the coupling, the elastic element (35) being placed by vulcanization between adjacent axially directed side elements (53, 54) in the form of a sleeve. 14. A gear coupling according to claim 10, characterized in that, as an elastic connecting element, a coupling with a wedge ring (40) with alternating fasteners (21, 22) and elastic elements (41) located between adjacent fasteners (21, 22) inserted between both gear half-couplings (27, 28). 15. A gear coupling according to claim 14, characterized in that the elastic elements (41) are vulcanized between adjacent fastening elements (21, 22). 16. A gear coupling according to claim 14, characterized in that the wedge packages, which are inserted with prestress between the fasteners formed on the closing circuit, form a closed ring. 17. A gear coupling according to claim 14, characterized in that the wedge ring (40) made in the form of an elastic connecting element (29) is formed either in the form of a closed ring or in the form of a segmented ring. 18. A gear coupling according to claim 14, characterized in that the parts (5, 6) with the internal teeth of the gear half couplings (27, 28) are rigidly connected, directed in a radial threaded connection (55) to the axis (59) of the gear coupling, with fasteners elements (21, 22) of the wedge ring (40) in alternation with fasteners (21, 22). 19. A gear coupling according to claim 9, characterized in that the elastic connecting element (29) is equipped with at least one abutment point relative to parts (5, 6) with internal teeth, while the abutment places (63, 68) are either in the form of a sliding bearing, or in the form of a rolling bearing. 20. A gear clutch according to claim 19, characterized in that between the screwed fastening ring (57) matched to the internal teeth of the gear coupling half (27, 28) and aligned with the inner cover (46, 45) on the gear the coupling half (28, 27) of the part (6, 5) with the internal teeth is inserted at least one thrust bearing (68) sliding. 21. A gear clutch according to claim 19, characterized in that between the matched coupling half (27, 28) with the ring gear (62) and the part (6, 5) with the inner teeth between the tooth gear coupling half (27, 28) that is aligned and screwed with the internal teeth at least one radial plain bearing (63) is inserted in the corresponding other gear coupling half (28). 22. A gear coupling according to claim 19, wherein the bearing seats are a combination of at least one thrust sliding bearing and at least one radial sliding bearing. 23. A gear coupling according to claim 9, characterized in that at least one breakdown prevention mechanical element (64) matched to the elastic coupling element (29) is placed in the flange region (56) of the integrated elastic connecting element (29). 24. A gear coupling according to claim 23, characterized in that the breakdown prevention element (64) consists of a finger and a corresponding mating part. 25. The gear coupling according to claim 1, characterized in that the elastic sealing element is an elastic metal corrugated pipe or an elastic rubber element or an elastic plastic element. 26. A gear coupling according to claim 1, characterized in that the elastic element (35) has electrical insulating properties. 27. A gear coupling according to claim 1, characterized in that the elastic element (35) is made of rubber subjected to vulcanization. 28. A gear coupling according to claim 9, characterized in that the elastic element (35) is made annular in the form of a disk between two metal disk-shaped side elements (33, 34) or in the form of an axially elongated cylindrical ring between two metal, axially elongated side elements ( 53, 54) or in the form of a wedge-shaped toothed clutch directed to the axis (59), molded, and also tensioned between two adjacent fastening elements made in the form of side elements (21, 22), an elastic, rubber-like spring lementa (41).

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