• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A safety shaft coupling member for coupling together two coaxial shafts and incorporating an overload safety device, which causes complete interruption of the transmission of torque when an acceptable maximum torque is exceeded, comprises a hub sleeve which is adapted to be fixed to a driven shaft, and a cup-shaped assembly in which the hub sleeve is freely rotatably mounted and is capable of limited axial displacement. The hub sleeve and the cup-shaped assembly have concentric toothed end faces situated in a common plane extending normal to the axis of rotation of the coupling member, and a first annular piston has two annular sets of teeth arranged to mesh with the toothed end faces. This first annular piston is extensible against the force of a restoring spring out of a liquid pressure device which is fixed either to the sleeve or to the cup-shaped assembly, and a second annular piston is also extensible against the force of a restoring spring in a direction opposite to that of the first annular piston out of the liquid pressure device to press against an end face of the cup-shaped assembly or the sleeve, whichever does not have the liquid pressure device fixed to it. Extension of both the pistons engages the teeth of the first piston to the two toothed end faces and so transmits torque from the hub sleeve to the cup-shaped assembly, but release of the liquid pressure in the device causes the first piston to be retracted and interrupt the transmission of torque.
    公开号:SU1058520A3
    申请号:SU782608751
    申请日:1978-05-03
    公开日:1983-11-30
    发明作者:Лунке Манфред；Вальтер Юрген
    申请人:Вулкан Купплюнгс-Унд Гетрибебау (Фирма)；Бернхард Хакфорт Гмбх Унд Ко.Кг. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering, in particular, to devices for connecting shafts, which protect the drive from overload damage. A known safety clutch contains drive and driven coupling halves mounted on shafts, as well as safety guards placed between them; telny knot in the form of frictional disks. The disadvantages of the well-known coupling are the complexity of the design, the large size, the need to replace the damaged safety element and the possibility of fragments between the coupling elements or machine parts, which can lead to premature abrasion of the friction discs. The purpose of the invention is to simplify the design and increase reliability. To achieve the set task in a safety coupling containing drive and driven semi-ducts installed on the shafts, as well as safety and connecting nodes placed between them, the coupling half is made in the form of a cup and a flange fixed on its end face The coupling half is made in the form of a stepped bushing placed in a glass with the possibility of rotation and limited axial movement, and the connecting assembly is made in the form of a mounted one of the pistons facing the flange is made with two concentric rows of end teeth and is mounted in the cylinder with the possibility of axial movement under the action of returnable springs and meshing with end teeth, which are made on the flange and on the step of the larger diameter hub, are located in the same radial plane, the other piston is mounted for axial movement under the action of air ratnyh springs in opposite directions and contact with the bottom of the cup. the piston with the teeth may be connected to the partition by means of bolts fixed thereto and placed in the axial bores made in the partition. Reciprocating springs for the piston with teeth are located between the head of each bolt and the partition. In addition, another piston is connected with the partition by means of bolts rigidly fixed on the partition and placed in the axial bores made in the piston. The cavity of the ram is connected to a pressure source by means of a radial channel formed in the sleeve by a partition and a piston with torso and teeth, and both cavities of the cylinder are interconnected by means of throttles. FIG. 1 shows the coupling, axial section; Fig. 2 is a schematic of the connection of an I-safety coupling with a hydraulic control device; FIG. 3 shows a coupling with a clutch disengaged, a slit; in fig. 4 - the same, with the coupling half rigidly connected to the shaft; in fig. 5 - the same, connected to the elastic coupling. The safety coupling contains a shaft coupling mounted on the shafts, made in the form of a cup 1 with a flange 2, a driven half coupling in the form of a stepped sleeve 3 placed in a glass with the possibility of axial movement and rotation, Between the bottom 4 of the cup, flange 2 and sleeve 3 are mounted on; and 6 rolling. Bearing 5 is fixed in the bottom 4 of the sleeve by a ring 7, and on the sleeve by a ring 18, the bearing 6 is fixed by rings 9 and 10. At the lower stage of the sleeve 3 there is a power cylinder 11 with a transverse partition 12. The cylinder is on either side of the partition in the cavities 13 and 14, pistons 15 and 16 are mounted. The piston 15 is made with two concentric rows of end teeth 17 and 18. On the flange 2 and the steps of the sleeve 3 of larger diameter, the end face is made. teeth 19 and 20 located in the same radius plane. In the cavity 14 there is a ring 21 fixed on the sleeve 3. In order to ensure that the piston 15 engages opposite teeth rows on the piston, bolts 22 are fixed parallel to the axis and passed through the holes in the partition 12, return springs 23 are located between the head of each bolt and jumper. compression, designed to hold the piston in the initial position out of engagement with the rows of teeth 19 and 20. Bolts 24 are fixed in the bulkhead, passed through the axial holes in the piston 16, between the heads of these bolts and the end of the piston are mounted 25. An zhiny to provide lasting curled vanie: Compound sleeve 3 and the flange 2 and 13 cavities. The 14 cylinders are filled with a non-pressure fluid. This should take into account the possibility that the teeth 17 of the outer row do not enter or are not fully engaged with the teeth 19, therefore the sleeve 3 and the flange 2 must be displaced relative to each other in the circumferential direction QP of the COMPLETE engagement of the teeth. In large couplings for these purposes, an auxiliary drive may be provided, which, when filling the cylinder cavities, slowly rotates the flange 2 relative to the sleeve 3 with the piston 15. After filling the working fluid of the cylinder cavities, all rows of teeth must be in pairs and without gaps each other. the clutches and the cylinders 13. and 14 of the cylinder are interconnected by means of throttle bores 26, which are made in the partition, which provide for the slow movement of the piston 16, and 28 are connected to the source of the working medium .. Both cavities 13 and 14 (Fig. 2 / cylinders are connected by radial channels to the pipeline, in this case there are no throttle holes in the partition,. The source of the working medium contains tank 29 and a constant IV motor pump 30, multi-way spool valve 31, safety valve 32 connecting pump 30 to reservoir 29, spool valve 31 is connected through rigid pipe 33, flexible pipe 34 and contact sealing ring 35 to pipe 28 in the form of axial channel in the shaft. The pressure of the safety valve 32 is closed by varying the pressure with the spring 36 by the detected value of the pressure measuring device 37. The slide valve 31 connects the pressure line of the pump 30 with the pipe 33 to the pipe shown in the drawings and leads from valve 31 to discharge into tank 29; The spool biased to the right connects valve 31 to pipe 1 of conduit 33 to drain pipe 38, while it closes the pressure line of pump 30 "to actuate the valve Valve 31 are designed to have two electromagnetic automatic relays that react to DC pulses through contacts under pressure. Turned on or turned off. The safety assembly, designed to disconnect the coupling during an overload, includes an axle circuit 39 on the shaft connected to an ohmic sensor connected to a measured value converter and a control body 40. By means of the bridge circuit 39, a signal is generated that is proportional to the torque, acting on the shaft. In the measured value converter and the control unit 40, this signal is compared with a predetermined value. When the specified value is exceeded, a signal is turned off, which regulates the slide valve 31 in such a way that force is removed from the annular pistons 15 and 16 and the clutch is disengaged. FIG. 1, 2, 4 and 5 the coupling is shown in the connected position. As a consequence, the annular pistons 15 and 16 are under the influence of driving through the radial channels 27 of the working medium and occupy the final position. In this position of the pistons, the teeth 17 and 18 of the pistons 15 are in engagement with the anti-lashing teeth of the teeth 14 and 19 of the flange 2 and the teeth 20 of the sleeve 3. If the coupling needs to be separated by actuating the shown in FIG. 2 switches Enabled - Disabled, pressure is removed from lanes 13 and 14 of cylinder 11, as a result, 1-ring pistons 15 and 16 are displaced | with the action of springs 23. and 25 are compressed in the direction of the septum 1-2, and the tooth 17 ,. 18 and 19, 20 are disengaged (Fig. 3). It follows that the driven flange 2 may turn. Screw freely, without transferring the torque from the rows of teeth 19, 18, 17 and 20 to the sleeve 3. FIG. 4 is shown together with a flange 41 fixed on the flange 2 and a shaft 42 rigidly connected with it, while the shaft (Fig. 2} is connected to the hub 3. In this case, it is a rigid coupling. In Fig. 5, the coupling is connected by means of elastic 1-1 sleeves with a shaft containing elastic annular discs 43, arranged to: I pass the flange 44 of one part of the coupling and the other with the coaxial part of the coupling 45. Part 45 is firmly connected to the flange 2 of the coupling, while aaji can be fixed to the flange 44 (Fig. 4 J.
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    权利要求:
    Claims (5)
    [1]
    1. A SAFETY COUPLING, containing the drive and driven coupling halves mounted on the shafts, as well as the safety and connecting units located between them, characterized in that, in order to simplify the design and increase reliability, the drive coupling is made in the form of a cup and a flange fixed to its end , the driven coupling half is made in the form of a stepped sleeve placed in a glass with the possibility of rotation and limited axial movement, and the connecting unit is made in the form of a sleeve mounted on a lower stage with left cylinder with a transverse baffle and with two pistons mounted on both sides of the baffle, one of the pistons facing the flange is made with two concentric rows of end teeth and mounted in the cylinder with the possibility of axial movement under the action of return springs and engagement with * made on the flange and on the step of the sleeve of a larger diameter with end teeth, located in one radial plane, another piston is mounted with the possibility of axial movement under the action of return springs in the opposite direction ozhnom direction and contacting with the bottom of the glass.
    •
    [2]
    2. Clutch pop. 1, characterized in that the piston with teeth is connected to the baffle by means of bolts fixed to it, located in axial holes made in the baffle.
    [3]
    3. The coupling according to paragraphs. 1 and 2, cast in that the return springs for the piston with teeth are located between the head of each bolt and the baffle.
    [4]
    4. The coupling according to paragraphs. 1-3, characterized in that the other piston is connected to the baffle by means of bolts rigidly fixed to the baffle located in axial holes made in the piston.
    [5]
    5. Coupling by. p. 1-4 I distinguish · and I am that the cavity of the power cylinder is connected to the pressure source by means of a radial channel made in the sleeve between the baffle and the piston with end teeth, and both cylinder cavities are interconnected by a throttle. * "And" SU „ „1058520 g
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    同族专利:
    公开号 | 公开日
    FR2389797B1|1985-11-29|
    JPS53139051A|1978-12-05|
    DE2720679C2|1986-09-18|
    DE2720679A1|1978-11-09|
    GB1574695A|1980-09-10|
    US4245729A|1981-01-20|
    FR2389797A1|1978-12-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2542848C2|2008-05-30|2015-02-27|Майна Органи Ди Тразмиссьоне С.П.А.|Safety connecting device for rotation transfer|US2428336A|1946-02-09|1947-09-30|Niagara Machine And Tool Works|Fluid operated clutch|
    US2684741A|1948-10-08|1954-07-27|Bendix Aviat Corp|Coupling device|
    US2963134A|1956-03-15|1960-12-06|Henry T M Rice|Fluid operated releasable torque transmitting apparatus|
    DE1230627B|1960-06-30|1966-12-15|Kocks Gmbh Friedrich|Safety coupling, especially for rolling mills|
    DE1179426B|1960-06-30|1964-10-08|Kocks Gmbh Friedrich|Claw clutch with automatic disengagement when torque is exceeded|
    US3251247A|1962-10-15|1966-05-17|Alan S Lamburn|Drive transmission devices and, in particular, planetary drive transmission devices|
    US3298488A|1964-09-29|1967-01-17|James A Mcdonald|Torque limiting clutch|
    DK125489B|1970-03-18|1973-02-26|Burmeister & Wains Mot Mask|Coupling for connecting two shaft ends.|
    GB1357563A|1971-08-12|1974-06-26|Ratcliffe Eng Co Ltd|Torque limiting tools|DE2947242A1|1979-11-23|1981-05-27|Fichtel & Sachs Ag, 8720 Schweinfurt|HYDRAULICALLY OPERATED FRICTION CLUTCH|
    JPS6213704Y2|1981-10-12|1987-04-08|
    US4717003A|1986-04-21|1988-01-05|Eoa Systems|Breakaway clutch for robot end-of-arm tooling|
    US4848546A|1986-04-21|1989-07-18|Mccormick Peter E|Programmable breakaway clutch system for robot end-of-arm tooling|
    DE3912659C1|1989-04-18|1990-10-31|Ott Maschinentechnik Gmbh, 8960 Kempten, De|
    US4998606A|1990-01-31|1991-03-12|Eoa Systems, Inc.|Programmable breakaway clutch system with collapsible failure mode|
    DE4408204C1|1994-03-11|1995-09-28|Atec Weiss Gmbh & Co Kg|Overload clutch switchable with compressed air|
    DE19808855C1|1998-03-03|2000-03-09|Claas Industrietechnik Gmbh|Hydraulic clutch that can be pressurized|
    DE19961925A1|1999-12-22|2001-06-28|Flender A F & Co|drive|
    DE102009019811A1|2009-05-02|2010-11-04|Bayerische Motoren Werke Aktiengesellschaft|Hydraulic actuation device for claw clutch of e.g. automatic transmission, has throttle area provided between fluid source and piston area such that high pressure is developed in another piston area than in former piston area|
    ITTO20121004A1|2012-11-19|2014-05-20|Maina Organi Di Trasmissione S P A|SAFETY JOINT FOR MECHANICAL POWER TRANSMISSIONS.|
    CN109505888A|2018-12-19|2019-03-22|陕西科技大学|A kind of speed reducer safety clutch|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19772720679|DE2720679C2|1977-05-07|1977-05-07|Shaft coupling with overload protection|
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