A friction clutch
(57) Abstract:Usage: in the field of mechanical engineering for transmitting rotation between the coaxial shafts and other machine parts. The inventive coupling halves 1 and 2 with conical friction surfaces cover one another. Half coupling 2 is spring-loaded relative to the nut installed on the shaft with the possibility of adjusting movement. Between the coupling equipped with a conical ring 4, serially connected with the hub by means of pins 9. This embodiment allows to reduce the dimensions of the coupling without changing the transmitted torque. 2 Il. The invention relates to the field of engineering, is designed for the transmission of rotation, i.e., for coupling a device messages rotation between shafts or other coaxially spaced links of the mechanism.Known cone coupling with two coupling with conical surfaces, the spring force-closure, keyed connection shaft movable in the axial direction of the shaft-coupling, the nut and locknut regulation of the force of the spring /1/.When such a coupling is created friction torque, depending on the radius of the clutch, and consequently the necessary increase The such structures are widely used in hand-held tools. Obviously, hand tools must be small in weight and dimensions, which is the object of the invention.The problem is solved in that known device, containing a fixed coupling, flexible couplings with conical friction surfaces, movable coupling is connected with the shaft in the circumferential direction by means of torque transmission, and control means preload moveable coupling to still equipped with several conical rings with end grooves concentrically arranged relative to each other in the annular gap between the conical friction surfaces of the coupling, as well as by pins, one of which is installed in covering the coupling and positioned in grooves odd conical rings, starting from the axis of the shaft in the radial direction, and other installed within the coupling and positioned in grooves odd conical rings, starting from the axis of the shaft in the same direction, thus the face grooves made on a smaller diameter odd conical ruts and large diameter of the conical even rings.In Fig. 1 shows a General view of the friction cone clutch;Fig. 2 is a diagram of the forces on the conical surfaces of the coupling.A friction clutch operates as follows. Rotation between the coupling halves 1 and 2 is transmitted through pins 8 and 9 through the grooves in the conical ring 4 friction forces on the conical surfaces of these half-couplings and rings arising from the force of the spring 5, the adjustable movement of the threaded shaft 3 nut 6 is fixed by the nut 7. When this odd ring 4, starting from the stationary coupling 1, rotate in one piece with the pin 8 and a movable coupling half 2, and the even-numbered ring 4 in one piece with pins 9 and a fixed coupling half 1 in the open condition of the coupling 1 and 2 and the rings 4. The circuit of the coupling halves 1 and 2 with a tapered rings 4 is performed by the spring 5. To turn off the rotation is groove coupling 2, which interacts with a fork control. Moreover, with the movement of the movable coupling 2 to the right in Fig. 1 breaking occurs conical ring 4 C is) to the sine of the angle forming cones to the axis of the shaft 3. Therefore, when the angle of friction of the order of 6oaccepted limit for the implementation of the disconnection, the result is a five-fold reduction in wire diameter of the spring 5. With the introduction of several conical ring 4, which is the force decreases in proportion to the number of cooperating conical surfaces of the rings 4 and the coupling and 2 in connection with the placement of the pins 8 and 9.This is substantiated reduced radial dimensions of the coupling 1 and 2, as well as the dimensions of the spring 5.Such multi-layer frictional connection of the rings increases the friction force of the clutch in a multi-disc clutch, reduces the radial dimensions of the coupling structure, and also allows you to reduce the spring force of the force-closure, i.e. makes it possible to reduce also the dimensions of the spring and consequently the dimensions of the coupling. A friction clutch, containing made with conical friction surfaces fixed in the axial direction covering the coupling half and moving in the direction of the axis of the shaft covered by the coupling associated with the shaft in the circumferential direction by means of the transmission of torque, and adjustable means preload moveable coupling to a stationary, characterized in that it has several rings from the ends of the pension surfaces of the covering, and covered the coupling, and pins, some of which are installed in covering the coupling and positioned in grooves odd conical rings, starting from the axis of the shaft in the radial direction, and the other set within the coupling and positioned in the slots even conical rings, starting from the axis of the shaft in the same direction, thus the face grooves made on a smaller diameter odd conical rings and the large diameter of the conical even rings.
FIELD: automotive industry.
SUBSTANCE: proposed cone clutch has driving and driven cones. Driving cone is fitted on intermediate shaft one end of which is connected by sliding splined joint with output shaft of engine with possibility of axial travel. Driven cone is connected with drive shaft of gearbox.
EFFECT: improved reliability of car clutch.
FIELD: machine building.
SUBSTANCE: connection device includes inlet and outlet shafts, a multidisc friction coupling with an electromagnetic drive and a three-link planetary gear, the links of which are interconnected with shafts of the device and cages of the coupling of drive and driven discs with formation of two torque moment flows that are different as to the value. Both flows are added on a crown gear of the planetary gear beyond the coupling limits. When actuated, the coupling is in a branch of lower torque moment.
EFFECT: reduction of energy consumption; increase of coupling service life and reduction of material costs.
4 cl, 2 dwg
FIELD: machine engineering.
SUBSTANCE: method of engaging the braking is to apply a system of interconnection of the two shafts with unchanged reciprocal meshing gears. The brake clutch, which receives friction loads, is carried to the outer surface of the clutch housing. The system of interrelation of two shafts has an input shaft 1 and an output shaft 2. The wheel 3 is coaxially fixed to the output shaft. On the wheel along the circumference, the axles 4 are rotatably mounted. The gears 5 are fixed on the axes, having gearing with gear 6 on the input shaft 1. In parallel with the gears 5, the gears 7 are fixed on the axles 4. In the same plane with gears 7 coaxial to the axis of the input shaft is a brake gear 8 having a gearing with gears 7. The effect of the input shaft on the output is made by braking the brake gear 8 with the brake clutch 9. In the absence of braking, all the gears of the system rotate if the input shaft rotates. When braking the brake gear 8, the gears 7 are forced to roll around the perimeter of the brake gear 8. Together with the gears 7, the wheel 3 will rotate. The cylindrical part of the body 10 serves as a support for the brake gear and shaft 1. The brake gear 8 is connected to the conical gear 13. The conical gear 13 is toothed with a conical gear 14 fixed to the shaft 12. The shaft 12 extends beyond the housing 11 and is connected to the brake clutch 9. The brake clutch brakes the shaft 12 or leaves it in free rotation. When the shaft 12 stops, a torque is transmitted from the engine to the running gear shaft. If the shaft 12 is in free rotation, the engine is disconnected from the running gear.
EFFECT: placing the most vulnerable parts of the clutch in an accessible area for repair.
FIELD: electrical engineering; magnetic clutches with engageable permanent-magnet rotors and conductors separated by air gaps.
SUBSTANCE: proposed magnetic clutch has first and second shafts with parallel axes of revolution; case or wiring unit disposed on first shaft about its axis of revolution; permanent-magnet rotor disposed on second shaft and passed into case in radial direction from second shaft; two electricity conducting parts resting on case or wiring unit for displacement and separated from magnets with air gaps on opposite ends of rotor; as well as air gap adjusting device designed for controlling axial position of electricity conducting parts of conductors in axial direction relative to case and for random variation of air gaps.
EFFECT: simplified design and facilitated servicing due air-gap adjustment system easy-to-use on site upon clutch installation.
24 cl, 4 dwg
FIELD: mechanical engineering.
SUBSTANCE: arm-piece is fastened to pulley by means of bolt. Arm-piece has straight slit. Pulley with arm-piece are mounted for slide relatively friction nave of driven shaft which has disk provided with spiral-shaped slot. One magnet is fixed to disk of driven shaft. Other magnet is connected with straight slit of arm-piece through spiral-shaped of disk and is mounted for getting closer to first magnet slippage of clutch. Work signaling device is made in form of magnetically operated sealed switch which closes signaling electric circuit from influence of two magnets which magnets have opposite polarities.
EFFECT: improved precision of determination of time moment for clutch adjusting.
FIELD: mechanical engineering.
SUBSTANCE: friction compensating safety clutch comprises two clutch members and disks that are secured to the clutch members and provided with central and peripheral openings. The peripheral openings cooperate with the balls enclosed into the rubber separator. The compensating member is a fastening member made of spherical washers and mounted in the central opening in the disks and separator. The fastening member is a bolt with a nut.
EFFECT: expanded functional capabilities.
2 cl, 2 dwg
FIELD: mechanical engineering, possible use in precise mechanics devices for transmitting given driving torque, and also as means for protecting mechanical transmission from rotation elements, exceeding allowed value.
SUBSTANCE: in accordance to invention, device consists of body, driving shaft, set of spring-loaded friction elements, in turns connected to body and driving shaft with possible axial movement, springs and elements for controlling their force. Materials of components of sleeve structure are selected so that in force closed circuit of parts, as closing link of which springs are used, some elements, for example, friction set, have greater coefficient of temperature expansion in comparison with other parts of force circuit, and total change of geometric dimensions during change of temperature of construction additionally compresses springs, for example, during heating, or partially tempers them, for example, during cooling, compensating temperature changes of friction coefficient.
EFFECT: simplified construction, namely of mechanical part of unit for "automatic temperature stabilization of value of momentum being transmitted" due to selection of sleeve part materials, decreased dimensions, weight and industrial costs of sleeve manufacture.
2 cl, 2 dwg
FIELD: mechanics, metallurgy.
SUBSTANCE: proposed safety clutch incorporates a rotary-sliding sleeve, its one end receiving the spindle inner thread part and axially moving, while its other end envelopes, with heavy-keying fit, the spindle part comprising inner sleeve. Note that its rear end representing a sleeve continuation forms in the case of an overload, with help of a spacer sleeve and a gap swollen by operating fluid, an yieldable friction joint ruling out the turning. The force of starting axial shift is adjusted by the cylinder pressure. Additionally the spindle threaded section can be furnished with a rigid bearing section, while the spindle section with inner sleeve can have a floating support section.
EFFECT: yieldable friction joint ruling out the turning.
9 cl, 1 dwg
FIELD: machine building.
SUBSTANCE: present invention pertains to a friction clutch for a distribution device with a correction ribbon. The friction clutch has first and second main elements as well as tension elements. The first and second main elements are held with possibility for executing relative rotational motion. The first main element has a cylindrical element, coaxially passing through a circular opening of the second main element. The second main element has coaxial tension elements for holding and pre-stretching the elastic ring, directed around the tension elements. The tension elements are geometrically arranged in such a way that, the ring can be seen from the central opening in form of secant line sections. These sections radially bend outwards, when the cylindrical element of the first main element is put into the central opening of the second element, so as to create friction force between the ring and the outer wall of the cylindrical element during their relative rotational motion.
EFFECT: creation of reliable friction force between surfaces.
10 cl, 3 dwg
FIELD: railroad transport.
SUBSTANCE: rolling stock self-driven assembly shaft supports two motor-driven running wheels. Running wheel slipping clutch comprises ring-like opposed outer braking clamps. Outer clamps are made up of a part of running wheel and clamping ring rigidly coupled with the latter. Clutch also incorporates clamping ring squeezed between clamping ring and said part of running wheel. Note here that running wheel is driven by motor via axial clutch pivot articulated with running wheel via slipping clutch.
EFFECT: possibility to adjust torque and damp drive linkage.
20 cl, 4 dwg