![]() Rectractable lock for coupling two shafts
专利摘要:
In a mechanism for connecting together in torque transmitting engagement a coupling sleeve and a power takeoff shaft, particularly in agricultural implements, there is provided a drawing lock which may be arrested in the open position. The drawing lock includes a locking ring which holds a plurality of radially movable torque transmitting balls in their locked position during torque transmission of the assembly. A slotted spring ring is provided which engages the torque transmitting balls to hold them radially inwardly thereby to arrest the device in the open position. When a power takeoff shaft is inserted into the bore of the coupling sleeve, the torque transmitting balls are moved radially outwardly and, as a result, the slotted spring ring resiliently expands in diameter thereby to cause a first stop face of the ring to become disengaged from a supporting face of a supporting ring which is axially affixed to the coupling sleeve. The slotted ring then moves axially out of engagement with the torque transmitting balls and a second stop face on the ring engages the supporting face of the supporting ring. In accordance with a second embodiment of the invention, the slotted spring ring is provided with a member bridging the slot thereof extending across both ends, but permitting relative movement between the ends of the ring so as to ensure corresponding movement of both ends, even where only one end of the ring is urged radially outwardly by a torque transmitting ball. 公开号:SU1457818A3 申请号:SU864027070 申请日:1986-03-11 公开日:1989-02-07 发明作者:Гейстхоф Хуберт;Буте Тео;Микеска Феликс 申请人:Жан Вальтершайд Гмбх (Фирма); IPC主号:
专利说明:
The invention relates to agricultural mapping engineering, namely to shaft joints, primordially, a tractor power take-off shaft with a driven cardan shaft of agricultural machinery. The purpose of the invention is to increase reliability and reduce dimensions. FIG. 1 shows the connection in the closed position, a general view in section of the Mio; in fig. 2 - the same, in the open position; in fig. 3 - spring 1 ring with a slot; in fig. 4 is a section A-A in FIG. 3; in fig. 5 is a section BB in FIG. 3; in fig. 6 - connection in the closed position in the case of an annular groove on the end surface of the spring, ring in which the ring spring is placed, general view, in axial section; in fig. 7 - the same, in the open position; in fig. 8- spring ring with a slot and with an annular spring; in fig. 9 is a sectional view BB in FIG. eight; in fig. 10 - spring ring with end grooves in which the connecting element is placed; in fig. 11 - a spring ring with a groove on one of the ends and a ledge on the other. The joint contains a connecting sleeve -mufta 1 with an annular protrusion on the narcissive surface, a profile central opening and radially arranged apertures in which the locking elements 2 are installed, the locking ring 3 surrounding the locking elements, spring 4, is installed along the axis between the locking ring 3. and the protrusion of the connecting sleeve 1, the outer sleeve 5 includes with the inner annular protrusion at one of its ends, the support ring 6 and the spring ring 7 with a slot 8. Fixed 5 ring ring 3 on the outer diameter etru zhes.tko associated with the inner surface of the sleeve 5 includant. The support ring 6 is connected with the connecting sleeve 1 stationary in the axial and radial directions. The spring ring 7 is formed with two supporting annular surfaces 9 and 10 on its inner surface, with the formation of an annular protrusion 11 on one of them. its ends. The outer diameter of the first support surface is made ls more than the second. 7 ring spring ring 0 Q five five 0 five 0 placed along the axis between the protrusion of the insertion sleeve 5 and the locking ring 3 with the possibility of its supporting surfaces 9 and 10 interacting with the supporting ring 6 and the interaction of the annular protrusion 11 with the locking elements 2. On both sides of the spring ring 7 at the first support surface 9, bevels 12 are made with the formation of two inclined surfaces. The ends of the split spring ring 7 are interconnected movably with the possibility of movement in the circumferential direction by means of a radially curved connecting Bolt element 13 installed at least at one of the ends of the spring ring 7. On one end surface of the spring ring 7, an annular groove 14 is made, and the connecting element is made in the form of a split annular spring 15 and is located in an annular groove 14, with one of the ends of the spring 15 rigidly connected to the ring 7. At the end of the spring ring 7, from the side of the slot, there are deaf arc grooves 16, in which the connecting element 13 is located. The connecting element is made in the form of a protrusion 17 at one end of the spring ring 7, located in the corresponding recess 18, made at the other end of the ring 7. The coupling sleeve of the coupling 1 is mounted on the shaft 19, in which an annular groove 20 is made. To disconnect the sleeve 1 of the shaft 19, the turn-on sleeve 5 is moved in the direction opposite to the direction of the nozzle of the connecting sleeve 1 on the shaft 19, while the locking ring 3 is pulled out from the closing position of the locking elements 2 that move radially outwards. After removal of the connecting sleeve 1, the locking elements 2 are moved radially inwards to the stops provided in the connecting sleeve G. The movement of the locking elements 2 is carried out due to the compressive force of the surrounding spring ring 7, which decreases in diameter and the first bearing surface 9 is in contact with the end to support ring top 6. Shafts are disconnected. When the shaft is reconnected, the coupling sleeve of the coupling 1 moves towards the nozzle on the shaft 19, and the locking elements 2 move radially outwards, while the spring ring 7 increases in diameter and the first bearing surface 9 is retracted from the supporting ring 6. As soon as the locking elements 2 reach annular groove 20 on the shaft 19, they sink into the groove under the action of the spring ring 7, which under the action of the spring 4 will move up to the stop of its second bearing surface in the support ring 6. Together with the spring ring 7 under the action The spring 4 moves also the retaining ring 3, which covers the locking elements 2 and reliably fixes them in the locked position, In the case of using two diametrically opposed locking elements 2, there is a danger that one of the locking elements will act on one end of the spring ring 7 near its slot, In this case, the other end of the spring ring will not move radially outwards, since it will not be loaded by the locking element . Making bevels at the first bearing surface of the spring ring eliminates the engagement of the spring ring 7 by one of its ends behind the support ring 6, which ensures the movement of the spring ring regardless of the position of the slot 8 relative to the locking elements 2, The implementation in the spring ring 7 of the annular groove 14 and the installation of the annular spring 15 therein ensure uniform movement of both ends of the spring, regardless of the location of the locking elements 2. By the proposed implementation of the shaft coupling, the reliability of the joint is increased and its dimensions are reduced.
权利要求:
Claims (4) [1] 1. Excess locking for connecting two shafts, mainly of the driving power take-off shaft of the tractor with the driven cardan shaft of agricultural machinery, containing 578184 coupling sleeve with an annular protrusion on the outer surface, a profile central g and radial holes in which the locking elements, locking ring covering the locking elements, a spring mounted along the axis 10 between the locking ring and the protrusion of the coupling sleeve, and outer turn sleeve with an inner annular protrusion at one of its ends, while fixing 15 RING on the outer diameter is rigidly connected with the inner surface of the turn sleeve characterized in that, in order to increase reliability and reduce envelope size, it is provided with a support ring connected with the coupling sleeve of the coupling stationary in the axial and radial directions, and a spring ring with a slot, the inner surface of which is made with two supporting annular surfaces, the outer diameter of the first of which is larger than the diameter of the second, with the formation of an annular protrusion at one of its ends, installed axially between the protrusion of the turn-on sleeve and the fixing ring with the possibility The interaction of its supporting surfaces with the supporting ring and the interaction of the annular protrusion with the locking elements. [2] 2. Exhaust constipation according to claim 1, about t - distinguishing with the fact that by 40 both sides of the slot of the spring ring at the first bearing surface are made bevels with the formation of two inclined surfaces. 45 [3] 3. Exhaust constipation according to claims. 1 and 2, characterized in that the ends of the split spring ring are interconnected movably with the possibility of re-measurement in the circumferential 50 through a radially curved connecting element installed at least in one of the ends of the spring ring. [4] 4. Exhaust constipation according to claim 3, about t - It is characterized in that an annular groove is made on one end surface of the spring ring, and the connecting element is formed in the form of a slit overlapping the slot. 2 BUT Phie. Phases. five FIG. five i9 5 15 14 3 Fie.7 Bb ae, ff 0US. ten 0us, ff
类似技术:
公开号 | 公开日 | 专利标题 SU1457818A3|1989-02-07|Rectractable lock for coupling two shafts US3396554A|1968-08-13|Retaining ring for a universal joint member SU1560063A3|1990-04-23|Safety clutch US4228882A|1980-10-21|Friction clutch unit US4083202A|1978-04-11|Stroking universal joint housing EP0020700B1|1983-08-03|Cone coupling US4493676A|1985-01-15|Rotary constant velocity joint KR20020073308A|2002-09-23|Coupling mechanism for electrical connectors US2625415A|1953-01-13|Flexible splined connection JPH0619179B2|1994-03-16|Detachable coupling device US4863199A|1989-09-05|Separation preventive pipe joint US3487903A|1970-01-06|Torque locked spline for clutch EA001700B1|2001-06-25|Tubular connection JP3044346B2|2000-05-22|Protective device for drive shaft JPH0745901B2|1995-05-17|Lock type synchronizer for automobile gear transmission US4900181A|1990-02-13|Locking device for connecting a driveshaft to a power take-off shaft US5788399A|1998-08-04|Snap ring US4464077A|1984-08-07|Coupling device for drive shafts EP0174682B1|1989-11-23|A method of securing a cover to the end of a thin-walled tube US3310961A|1967-03-28|Constant velocity universal joint US4496334A|1985-01-29|Guard for a drive shaft GB2184201A|1987-06-17|Axial retaining member WO1987007344A1|1987-12-03|Spline anti-backlash device US4374556A|1983-02-22|Clutch release device US6346049B1|2002-02-12|Transmission and torque-limiting joint able to engage the driving and driven members always in a single angular position
同族专利:
公开号 | 公开日 GB2173572B|1988-10-05| GB2173572A|1986-10-15| US4639162A|1987-01-27| FR2579406A1|1986-10-03| AU5431386A|1986-10-30| GB8607724D0|1986-04-30| IT1191378B|1988-03-23| IT8606927V0|1986-02-06| AU563483B2|1987-07-09| IT8605123D0|1986-02-06|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 US3747966A|1971-09-15|1973-07-24|Deere & Co|Shaft coupling mechanism| DE2850087C3|1978-11-18|1981-10-15|Jean Walterscheid Gmbh, 5204 Lohmar|Pull lock lockable in open position| US4402626A|1981-02-09|1983-09-06|Recker Florian B|Torque transmitting coupling| FR2531535B1|1982-08-03|1985-08-30|Onera |METHOD AND DEVICE FOR DOSING LOW CONTENT OF GASEOUS COMPONENTS| DE3345732C1|1983-12-17|1985-02-14|Jean Walterscheid Gmbh, 5204 Lohmar|Pull lock lockable in open position|EP0225554B1|1985-11-27|1990-05-09|Matsui Walterscheid Ltd.|Removable coupling device| JPH0619179B2|1985-12-23|1994-03-16|松井ワルタ−シヤイド株式会社|Detachable coupling device| DE3818808A1|1988-06-03|1989-12-07|Walterscheid Gmbh Jean|CLOSURE FOR FASTENING AN EXTERNAL PART ON AN INTERNAL PART, IN PARTICULAR THE CLUTCH SLEEVE OF A PTO SHAFT OF AN AGRICULTURAL MACHINE ON THE PTO OF A TRACTOR| FR2664339B1|1990-07-05|1995-04-28|Renault|COUPLING DEVICE.| DK137593D0|1993-12-09|1993-12-09|Micro Matic As|SAVING ARRANGEMENT| US5522669A|1993-12-13|1996-06-04|Recker; Florian B.|Torque transmitting coupling device| GB9510926D0|1995-05-31|1995-07-26|Nastech Europ Ltd|Shaft coupling| US5779385A|1996-01-03|1998-07-14|Weasler Engineering, Inc.|Automatic uncocking shaft sensing coupler| US5632568A|1996-01-03|1997-05-27|Weasler Engineering, Inc.|Automatic uncocking shaft sensing coupler| US7367891B2|2004-11-23|2008-05-06|Hr Textron, Inc.|Techniques for controlling transfer of torque using detent members responsive to radial force| US20070246270A1|2006-04-24|2007-10-25|Priepke Edward H|Quick connect PTO shaft| FR2901332B1|2006-05-17|2008-07-18|Zf Systemes De Direction Nacam Sas|SYSTEM FOR LOCKING A FIRST TREE IN RELATION TO A SECOND TREE DELETING THE GAMES BETWEEN THE SAID TREES|
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申请号 | 申请日 | 专利标题 DE3511576A|DE3511576C1|1985-03-29|1985-03-29|Towing coupling which can be locked in the open position| DE3538708A|DE3538708C1|1985-10-31|1985-10-31|Towing coupling which can be locked in the open position| 相关专利
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