SU1441097A1 - Expanding clutch - Google Patents

Description

(21) 4240374 / 31-27

(22) 05/11/87

(46) 11/30/88. Bul No. 44

(71) All-Union Scientific Research Design Institute for Applied, Biochemistry

(72) Yu.V. Agafonov

(53) 621.825.54 (088.8)

(56) USSR Author's Certificate No. 889955, cl. F 16 D 43/18, 1980.

(54) CENTRIFUGAL COUPLING

(57) The invention relates to the field of mechanical engineering and is intended to connect shafts at a certain frequency of rotation. The purpose of the invention is to increase the load capacity of the coupling. The clutch consists of the leading coupling half 1 and the driving coupling half surrounding it. Friction pads 5 and centrifugal loads 11 are placed between the coupling halves. The pads 5 are spring loaded 8. The weights I1 are pivotally fixed in the coupling half 1 on the x 10 axis and contact with the pads 12 between the center C of the load and the axis 0-0 of the hinges. When the driving half coupling 1 rotates, the cargo I1 rotates on the axes IO and presses 12 pads 5 against the surface of the driven coupling half by projections. The increase in the load force forces on the pads compared to the centrifugal forces F due to the difference in arms Oa Sh and Oy increases the load capacity of the coupling. 2 Il.

cl

g /

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The invention relates to mechanical engineering and is intended to connect shafts at a certain frequency of rotation.

The purpose of the invention is to design the load capacity of the coupling,

Figure 4 shows a cross section of the coupling; FIG. 2 shows a section A-A in FIG. one,

The coupling consists of a leading half coupling fixed on the shaft 2, and a coupling 3 spanning its leading crawl fixed on the shaft 4. Between the half couplings there are installed pads 5 with friction linings that interact with the inner surface of the half b coupling 3, Pads 5 are located between the half 7 half couplings 1 and spring-loaded springs 8 through the bolts 9, on the half-coupling 1, the centrifugal weights П are mounted on the coupling half 1, which are made with projections 12, are located on the axle IO. between the center of gravity C-load and the axis of the hinges 0-0 and in contact with the surface of the pads 5 ". In the ejected position, the loads 11 are pressed against the annular protrusion 13 of the half-coupling 1, and the pads 5 are arranged with a gap relative to the cup b .

The clutch works as follows.

When the leading half coupling I rotates, the loads 11 under the action of centrifugal forces move in the radial direction and turn on the axes x 10 "At the same time, the projections 12 will act on

pads 5, pressing them against the surface of the cup 6 of the driven half coupling, and the moment due to friction forces is transmitted from coupling half 1 to coupling half 2. The forces R from the projections 12 to blocks 5 will be greater than the centrifugal forces F due to the difference in arms Oa and Oy, Moment the clutch is turned on, i.e. stop slipping pads 5, is regulated by the force of the springs 8.

The coupling allows, due to an increase in centrifugal forces, to increase the loading capacity with the same dimensions or to reduce the dimensions with the same transmitted loads.

Claims (1)

Invention Formula A centrifugal clutch containing a leading half coupling covering its driven coupling half, spring-loaded friction pads placed between them, installed with the possibility of interaction with the inner surface of the driven coupling half, and centrifugal weights, characterized in that in order to increase the load capacity, each centrifugal load is hinged on the leading coupling half and is made with a protrusion located between the center of gravity of the load and the axis of the hinge and in contact with the friction blocks. .