SU628357A2

SU628357A2 - Play-free coupling with floating cross piece

Info

Publication number: SU628357A2
Application number: SU772441951A
Authority: SU
Inventors: Иван Платонович Богданов
Original assignee: Предприятие П/Я А-1944
Priority date: 1977-01-10
Filing date: 1977-01-10
Publication date: 1978-10-15

Description

II

Изобретение относитс области машиностроени и может быть использовано ДJIЯ передачи вращени между т жело нагруженными валами.The invention relates to the field of mechanical engineering and can be used by JJ transmission of rotation between heavy loaded shafts.

Известна муфта.содержаща две полумуфты, ззаимодействующие через крестовину .Known clutch containing two coupling halves interacting through the crosspiece.

Недостатком ее вл етс неточна углова фиксаци валов.The disadvantage of it is inaccurate angular fixation of the shafts.

По авт.св. 409023 известна безлюфтова . муфта с плавающей крестовиной ,, содержаща две полумуфты с трапецеидальными пазами на торцах, в которых размещены пальцы плавающей крестовины. Эта муфта вл етс наибо лее близкой к изобретению по техничекой сущности и достигаемому результату . Однако дла нее характерны низка величина передаваемого момента и недостаточна долговечность работыBy bus 409023 known bezlyuftov. coupling with a floating cross, containing two coupling halves with trapezoidal grooves on the ends, in which the fingers of the floating cross are placed. This coupling is the closest to the invention in technical essence and the result achieved. However, it is characterized by a low amount of transmitted torque and insufficient durability

Цель изобретени - увеличение передаваемого момента и повышение долговечности работы.The purpose of the invention is to increase the transmitted moment and increase the durability of work.

Поставленна цель достигаетс тем что предлагаема муфта снабжена вкладшиами , установленными между пальцами крестовины и боковыми стенками трапецеидальных пазов с возможностью перемещени относительно последних, The goal is achieved by the fact that the proposed coupling is provided with inserts installed between the fingers of the cross and the side walls of the trapezoidal grooves with the ability to move relative to the latter,

при этом во вкладышах выполнены пазы |по форме пальцев.at the same time in the liners are grooves in the shape of fingers.

На фиг. 1 изображена безлюфгова муфта с плавающей крестовиной в разрезе; на фиг. 2 - поперечный разрез ее по плавающей крестовине, разрез А-А на фиг. 1.FIG. 1 shows a floatless coupling with a cross-piece in the section; in fig. 2 is a cross-section of it along the floating cross, section A-A in FIG. one.

Безлюфтова муфта с плавающей крестовиной состоит из полумуфты 1 и полумуфты 2, взаимодействующих через плавающхпо крестовину 3. Пружиной 4 они подпружинены относительно упорного кольца 5. Пальцы крестовины 3 контактируют с вкладышами б.The back coupling without float coupling consists of coupling half 1 and coupling half 2, interacting through the floating coupling 3. By spring 4 they are spring-loaded relative to the thrust ring 5. Cross fingers 3 are in contact with inserts b.

Claims

The movable coupling half 1 is mounted on one of the connected shafts by means of a sliding fit and a keyed joint. At the free end of the half coupling 1 there are two diametrically located forks with trapezoidal grooves. By means of the stop ring 5 and the spring 4, the half coupling 1 is spring-loaded towards the fixed coupling half 2, which, at the end, also has two diametrically placed forks with trapezoidal grooves, but mounted on the other of the connected Vseshov by means of a fixed fit and a keyed joint. The cross 3, made in the form of one two mutually intersecting cylindrical fingers, establishes in such a way that one pair of diametrically placed cross fingers, fitted with pairs of inserts b, IB, go into the trapezoidal grooves of the BHJJ / SK-MOBILE semi-coupling 1 IB in the trapezoidal grooves of the BHJJ / SK-MOBILE semi-ducts 1. , also equipped with parmesh inserts b, is included in the trapezoidal grooves of the forks of the fixed half-coupling

2. When transmitting the torques of rotation, the cross 3 can move in the slots of the fixed coupling half 2 along the axis XX, and in the slots of the movable coupling half 1 along the axis, while the insert 6 can move only along the inner plane of the trapezoid grooves to which they adjoin, As a result of the axial springing of the movable coupling half, as well as due to the trapezoidality of the slots of the coupling half, full backlash is taken. Since the fingers of the crest are cylindrical, and the crosspiece can be moved along the xx and yy axes, it is possible to connect the machine shafts and mechanisms under the conditions of distortions and from their axes. Due to the fact that the cylindrical fingers of the cross are loosened by inserts, it is possible to connect with the help of the proposed coupling of shafts that transmit higher drive moments. The proposed coupling can be used to connect the shafts of machines and mechanisms transmitting torques of a power order and also requiring high synchronization accuracy of their rotation under skew and shifting axes, which increases the sphere; its use. In addition, this coupling ensures the synchronization accuracy of the connected shafts, guaranteed by a spline or keyed joint, and thus eliminates the use of complex and expensive devices to eliminate play in the joints. Due to the fact that the exact alignment of the shafts of machines and mechanisms that transmit the moments of the power order, requires a lot of labor, the use of the proposed coupling leads to a reduction in the cost of equipment installation. Claims of invention Bezlyuftovy coupling with a floating crosspiece on auth.St. 409023, about t and ch and so that, in order to increase the transmitted moment and increase the durability of work, bots, it is equipped with inserts with grooves in the shape of fingers mounted between the fingers of the cross and the side walls of trapezoidal grooves with the possibility of last. Sources of information taken into account in the examination: 1. USSR Author's Certificate No. 375416, cl. R 16 D 3/74, 1971.