• 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 retractable shaft structure for interconnecting a unit, such as a constant speed drive, to a power source, such as an engine gear box, wherein the unit has an input drive axis and the gear box has an output drive axis and the unit is moved transversely to said axes to bring the axes into alignment. A drive shaft defining the input drive axis and carried by the unit has a drive input end extending beyond said unit for connection into driving relation with an output shaft of the gear box. The drive shaft is mounted for adjusting movement along the input drive axis to have the drive shaft retracted during said transverse movement, followed by extension thereof. Rotatable mounting structure, independent of the unit, mounts the drive input end of the input shaft and is held in fixed relation therewith to move with the drive shaft during said adjusting movement and said rotatable mounting structure is releasably connectable to the gear box to be held in fixed relation thereto.
    公开号:SU897119A3
    申请号:SU792757803
    申请日:1979-03-30
    公开日:1982-01-07
    发明作者:С.Шмоух Джеймс
    申请人:Сандстрэнд Корпорейшн (Инофирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering, in particular to aircraft construction.
    It is known to connect shafts containing two shafts with splines at the ends, covered by a spline sleeve [1].
    The disadvantage of this device is the inability to extend the shafts when dismantling the connection.
    The closest to the proposed technical essence and the achieved effect is a device for connecting shafts parallel in the initial position, containing a drive shaft with a spline hole at the end and an intermediate spline sleeve included in it, connected to a hollow driven shaft located in the housing mounted 20 with the ability to move in a direction perpendicular to the axes of the shafts [2].
    However, the known device has low operational capabilities associated with oil leakage and the difficulty of connecting shafts with small dimensions of the product.
    The purpose of the invention is to reduce the size and improve operational 5 capabilities of the device.
    To achieve this goal, a device for connecting shafts parallel in the initial position, containing a drive shaft with a spline hole at the end and an intermediate spline sleeve included in it, connected to a hollow driven shaft located in the housing, with the possibility of moving in the direction of 15 perpendicular to the axes of the shafts, is equipped with a support unit in the form of a flange, in which an intermediate spline sleeve is located with the possibility of rotation, and the driven shaft is mounted in the housing with the possibility of movement in the axial direction laziness.
    In addition, the driven shaft is made, with splines at the ends, with radial channels and a tube inside for oil supply.
    89711
    The intermediate spline sleeve is made with a blind spline hole, and the end of the drive shaft is placed in it and fixed from axial displacement. *
    The device is also equipped with a casing covering the end of the driven shaft and connected to the support node and the housing.
    The casing is made in the form of a bellows made of oil-resistant material.
    The drive may be equipped with a controlled clutch coupled to the driven shaft.
    The coupling coupling is made in the form of two coupling halves with end teeth, one of which is a sleeve with internal splines, mounted for rotation in the housing and connected with axial movement with splines on the end of the drive shaft.
    Figure 1 shows the device in the connected and disconnected (dotted) state, General view; In Fig.2 a section of the device along the axes of the shafts in the connected state (the shaft is extended); figure 3 * section of a device with a retracted shaft.
    The gearbox 1, for example, a jet engine J0 (not shown) is an energy source for the drive 2 constant revolutions of the aircraft, which is connected to the gearbox using the appropriate load-bearing structure, one of the variants of which is shown in 35 of figure 1. The supporting structure includes a plate 3 mounted on a jet engine and having two mounting bolts 4 and 5, which pass through the tubular elements 6 and 7 of the housing 8 40 'constant speed drive and screwed into the holes of the plate 3.
    The location of the gearbox 1 and mounting. plate is such that it does not allow the assembly of the drive 2 with 45 gear by moving the drive in the direction of the axis of the drive shaft of the drive. As shown in figure 1, the drive is docked to the gearbox and dismantled 50 by moving the drive housing in the direction indicated by arrows 9. This movement is carried out in the direction perpendicular to the shafts. 55
    A rotary drive shaft 11 is located in the housing 10 of the gearbox 1. The constant-speed drive 2 has a hollow driven shaft 12. In the docked position shown in FIG. 2, the driven shaft 12 is connected to the driving shaft 11 by means of an intermediate splined sleeve 13 having a blind hole , which includes the end of the driven shaft 12. In addition, the sleeve 13 has splines 14 that engage with the internal splines 15 of the shaft 11.
    In the docked position (figure 2) of the shaft, the axis of the drive 2 coincides with the axis of the shaft of the gearbox 1. The driven shaft 12 is retracted into the position shown in FIG. 3 so as to allow lateral movement of the drive during docking and dismantling. The constant speed drive includes a drive system that transfers rotation from the gearbox to the ’hydraulic elements (not shown) of the constant speed drive. The rotation of the driven shaft 12 is transmitted to the sleeve 16, mounted in the housing in the thrust bearings 17 and connected with the coupling teeth 18 by the end teeth 19. When the coupling is turned on, the rotation from the coupling half 13 is transmitted via a spline connection 20 to the tubular drive element 21 mounted for rotation in the housing 8 on the bearings 22 and 23. On this tubular member there is an external gear 24 that is engaged with the gear gear 25 of the drive.
    The sleeve 16 is engaged with the inner end of the shaft 12 by means of a spline connection 26 with the possibility of axial movement and swinging to compensate for some mismatch between the axes of the drive 2 and gearbox 1.
    Between the input end of the shaft 12 and the intermediate sleeve 13 there is an additional spline connection 27, which together with the spline connection 26 provides a power connection of the drive 2 with the gearbox 1 in the presence of a mismatch of their axes.
    The driven drive shaft 12 is connected to the intermediate sleeve 13 by a spring ring 28. The sleeve 13 and, therefore, the input end of the shaft 12 are rotatably supported by a ball bearing 29, the inner race of which is tightly fitted on the intermediate sleeve 13, and the outer one is inserted into the support element 30, basically flange-shaped with a central bearing bore
    8971 nickname In addition, between the support element 30 and the sleeve 13 there is a seal 31 that prevents the leakage of oil.
    In the docked position, the support element 30 is fixed relative to the gear housing 10 with one or more studs 32 and is attached to the housing with one or more mounting bolts 33 · 10
    Splined connections 26 and 27 require lubrication. Lubrication is provided using a tube Z 1 ″ located inside the hollow driven shaft 12c of its inner end, through which lubricating oil is supplied under pressure into the internal cavity of the driven shaft. The oil passes through the output shaft to the input end thereof and is discharged outside through the oil passages 20 formed as channels 35 in the end of the drive shaft, thus falling in the blind hole of the sleeve 13, to then go through a splined coupling 27. In order to confine 25 To overshoot this oil flow, an annular seal 31 is provided. In addition, the protruding input end of the driven shaft is surrounded by a tubular stretching casing 36 made in the form of a bellows made of oil-resistant material. One end of this casing | is attached to a ring 37, which is fastened to the support element 39 of the drive and to a ring 40, attached 35 to the flange of the support element 30 using threaded fasteners 41. Thanks to these elements, the lubricating oil can pass through the corresponding provided inside the drive, passages and does not flow out of the gearbox 1 and drive 2, In addition, lubricating oil can pass through the channel 42 in the wall of the driven shaft and through the open end of the driven shaft 45 to lubricate the splined joint 2 6.
    A .43 spring moves the coupling half 18 to the left and engages the coupler. The coupling is switched off by the plunger- 50 Jerome 44.
    The device operates as follows.
    In the mounted position of rotation from the shaft 11 of the gearbox 1 through And the sleeve 13 is transmitted to the shaft 12 and through the slots 26 and the coupling half 18 to the gears 24 and 25 of the drive 2. When carried out *
    When dismantling the connection, the support flange 30 is disconnected from the housing 10 of the gearbox 1 and moves to the left. In this case, the slots 15 are removed from the shaft 11, and the shaft 12 moves along the slots J26. When the shaft is retracted, the drive housing 2 can be moved to the dotted line shown in FIG. The 3 ^ tube and channels 35 and 42 allow lubrication of the splines of the connection, and the casing 36 prevents leakage. oils from the compound.
    I
    The device allows you to easily connect the shafts when it is impossible to axial movements and some misalignment, while preventing the leakage of oil from the connection. This improves the performance of the connection and reduces the dimensions of the product.
    权利要求:
    Claims (2)
    [1]
    389 The intermediate spline sleeve is made with a blind spline hole, and the end of the drive shaft is placed in it and secured against axial displacement. The device is also equipped with a casing covering the end of the driven shaft and connected to the support unit and the housing. The casing is made in the form of a bellows of oil-resistant material. The drive may be provided with a controlled clutch coupled to the driven shaft. The coupling is made in the form of two coupling halves with end teeth, one of which is a sleeve with internal splines, mounted rotatably in the housing and axially displaced with the splines at the end of the drive shaft. Fig. 1 shows the device in the connected and disconnected (punctured) state, a general view; In Fig.2 a section of the device on the axis of the shaft in. 3 is a section of a shaft-in-shaft device. A gearbox 1, for example, a jet engine (not shown) is the energy source for driving 2 constant revolutions of an airplane, which is connected to the gearbox by The supporting structure, one of the variants of which is shown in Fig. 1. The supporting structure includes a plate 3 mounted on a jet engine and having two mounting bolts and 5 which pass through the tubular elements 6 and 7 of the housing 8 of the constant speed drive and screwed into the hole These plates 3. The arrangement of the gearbox 1 and the mounting plate is such that it does not allow assembling the drive 2 with the gearbox by moving the drive in the direction of the axis of the drive shaft of the drive. As shown in Fig. 1, the drive was docked to the gearbox and dismantled by moving the housing with water in the direction indicated by the arrows 9. This movement is in the direction perpendicular to the shafts. In housing 10 of the gearbox 1 there is a rotating drive shaft 11. When water is constant, it has a hollow ledge 2, the docked position shown in FIG. 2, the driven shaft 12 is connected to the driving shaft 11 by means of an intermediate spline sleeve 13 having a blind hole into which the end of the driven shaft 12 enters. In addition, the sleeve 13 has splines 14 , coupled with the internal splines 15 of the shaft 11. In the docked position (Fig. 2) of the shaft, the axis of the drive 2 coincides with the axis of the shaft of the gearbox 1. The driven shaft 12 is driven in the position shown in Fig. 3, in order to provide possibility of lateral movement of the drive in the process of docking and dismounting. A constant speed drive includes a drive system that transmits rotation from the gearbox to hydraulic elements (not shown) of the constant speed drive. The rotation of the driven shaft 12 is transmitted to the sleeve 16 mounted in the housing in the thrust bearings 17 and connected with the half coupling 18 by the end teeth 19. With the coupling engaged, rotation from the coupling half 13 is transmitted through the splined connection 20 to the tubular drive element 21 mounted for rotation in the housing 8 on bearings 22 and 23. On this tubular element there is an external gear 2A, which is engaged with the gear 25 of the drive. The sleeve 16 engages with the inner end of the shaft 12 through a spline connection 2b with the possibility of axial movement and swinging in order to compensate for some mismatch of the axes of the drive 2 and the gearbox 1. Between the input end of the shaft 12 and the intermediate sleeve 13 there is an additional spline connection 27, which, together with the splined connection 2b, provides the power connection of the drive 2 with the gearbox 1 in the presence of a mismatch between their axes. The driven drive shaft 12 is connected to the intermediate sleeve 13 by a spring ring 28. The sleeve 13 and, consequently, the input end of the shaft 12 is rotatably supported by a ball bearing 29, the inner race of which is tightly mounted on the intermediate sleeve 13, and the outer one is inserted into the supporting element 30 , basically, having the form of a flange with a central bore for bearing5 nickname. In addition, between the support member 30 and the sleeve 13, there is a seal 31 preventing the oil from flowing out. In the docked position, the support member 30 is fixed relative to the gearbox housing 10 with one or more studs 32 and is attached to the housing with one or more fastening bolts 33. The spline joints 26 and 27 require lubrication. The lubricant is provided by a tube 3 located inside the hollow output shaft 12c of its inner end, through which the lubricating oil under pressure is fed into the internal cavity of the output shaft. The oil passes through the driven shaft to its input end and is thrown out through the oil pipes, made in the form of channels 35 in the end of the drive shaft, falling into the blind hole of the sleeve 13, then to pass through the spline connection 27. In order to limit this The oil flow is provided with an O-ring seal 31. In addition, the protruding input end of the driven shaft is surrounded by a tubular stretch casing 36, made in the form of a bellows made of oil-resistant material. One end of this casing is attached to the ring 37. which, with fastening elements 38, is attached to the supporting element 39 with water and to the central heating ring attached to the flange of the supporting element 30 by means of threaded fastening elements Ш Thanks to these elements, lubricating oil can pass through appropriate, inside the actuator, passages and does not flow out of the gearbox 1 and the actuator 2. In addition, lubricating oil can pass through the channel 42 in the wall of the driven in and through the open end of the driven shaft to lubricate the spline joint 26. Spring LZ moves the coupling half 18 to the left and includes a coupling clutch. The clutch is disengaged by the kk plunger. The device operates as follows. In the mounted position of rotation from the shaft 11 of the gearbox 1 through the sleeve 13 is transferred to the shaft 12 and through the splines 26 and the coupling half 18 to the gears 2C and 25 of the drive 2. With the effect of removing the joint, the support flange 30 is disconnected from housing 10 of gearbox 1 And moves to the left. In this case, the splines 15 are withdrawn from the shaft 11, and the shaft 12 moves along the splines 2b. When the shaft is retracted, the drive housing 2 can be moved to the position shown in dotted line in FIG. The tube 3 and the channels 35 and 2 allow the connection slots to be lubricated, and the cover 36 prevents leakage. oil from the compound. I The device makes it easy to connect the shafts when axial displacements cannot be made with some misalignment, while preventing the oil from leaking out of the joint. This improves the performance of the joint and reduces the size of the product. Claim 1. Device for connecting shafts arranged in parallel in the initial position, comprising a drive shaft with a splined bore at the end and an intermediate spline hub, which enters it, connected to a hollow driven shaft located in a housing mounted perpendicularly Shaft axis, characterized in that, in order to reduce overall dimensions and improve operational capabilities, it is provided with a support unit in the form of a flange, in which the shaft is rotatably mounted. an intermediate spline hub, and a driven shaft mounted in the housing with the possibility of movement in the axial direction. 2. The device according to Clause 1, about which the driven shaft is made with slots at the ends, with radial channels and a tube inside to supply lubricant 3. The device according to Claims 1 and 2, which is intermediate The slotted sleeve is made with a blind slotted hole, and The drive shaft is placed in it and secured against axial displacement. 4. The device according to claims 1-3, about which it is equipped with. The casing covers the end of the driven shaft and is connected to the supporting evil and the body. 78 5. The device according to claim, characterized in that the casing is made in the form of a bellows of oil-resistant material. 6 Device PP. 1-5, that is, that the drive is provided with a controlled coupling coupling connected to the driven shaft, 7. The device according to claim 6, which has a coupling that is made in the form of two coupling halves with end faces. teeth, one of which is a sleeve with internal splines, mounted with rotation possibility in the housing and connected with the possibility of axial movement with the splines at the end of the drive shaft. Sources of information taken into account during the examination 1. Polkov BC, Barbash II .B., Hovskiy ON Clutch Handbook. L., Mashinostroenie, 1979, p.5, ins. 1 .1,
    [2]
    2. US patent number, CP. 192-11 +, 1977 (prototype).
    3V
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    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/892,133|US4195718A|1978-03-31|1978-03-31|Retractable shaft structure|
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