• 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:
    The invention pertains to a hoisting device, characterized by the fact that it mainly consists of a housing to which the load is suspended, and in this housing a driving pulley consisting of two half pulleys for the cable, which is suspended from a fixed point, whereby this driving pulley is provided with means which press the cable uniformly or practically uniformly into the driving pulley over a large arc, and with means which press aforesaid half pulleys away from each other at the locations where the cable enters and leaves the pulley, in such a manner that no friction occurs when the cable enters or leaves the driving pulley, whereby this pressing apart is performed in such a manner that no or practically no increase of pressure occurs on the cable on the other side of the pulley.
    公开号:SU886733A3
    申请号:SU762404756
    申请日:1976-09-24
    公开日:1981-11-30
    发明作者:Хариг Манфред
    申请人:Н.В.Вестерн Жар Эроп С.А. (Фирма)；
    IPC主号:
    专利说明:

    (54) RADING PULLEY
    FIELD OF THE INVENTION The invention relates to a lifting and transport machinery, namely, cable-guiding pulleys intended for vertical movement of loads.
    A traction sheave is known, comprising two cheeks mounted on the drive shaft, forming a cable channel, means for clamping the rope and a distribution ring 1.
    However, this pulley has a relatively short service life.
    The purpose of the invention is to increase the life of the pulley.
    To achieve this goal, the cable clamping devices are evenly placed around the circumference of the cheeks, with at least one cheek made of a deformable material.
    The distribution ring is mounted on the rolling elements, is eccentrically located relative to the drive shaft and is made with beveled side surfaces interacting with the bevels made on. inner surface of the cheeks.
    FIG. 1 depicts a rope leader. pulley, front view (with partial digging); FIG. 2 is a section A-A in FIG. one; in fig. 3 - traction head pulley, - the second embodiment; in fig. 4 is a section BB in FIG. 3; in fig. 5 — node 1 in FIG. one; in fig. 610 cable driving pulley, third embodiment:; in fig. 7 is a section B-B in FIG. 6; in fig. 8 - section GG in FIG. 6; FIG. 9 is a section DD-D in FIG. 6
    15
    In housing 1, which is shown schematically, there is a pulley 2 and shafts, which are driven by appropriate means, such as an engine attached to the housing
    20 (not shown).
    权利要求:
    Claims (2)
    [1]
    Pulley-2 consists of two cheeks 3 liters 4, the cheek 3 is fixed on the shaft 5, and the cheek 4 is attached to the cheek 3 by 25 bolts 6 screwed into the threaded holes 7, which are provided in the cheek 3, and freely passing through the hole 8 in the cheek 4 drive pulley. Bellevate springs 10 are placed between the head 9 of each bolt and the cheek 4. . -. The cheeks 3 and 4 are pressed against each other and are adjusted by twisting or unscrewing the bolts 6, thereby ensuring that the rope is gripped without slipping between the cheeks 3 and 4 and without deforming the rope. The cheeks 3 and 4 of the cheeks have inside circular oblique surfaces 11 and 12 with which the cable 13 comes in contact. These surfaces form a conical groove, which expands in the direction inward and has a dovetail shape in cross section. With the lateral pressure of the two pulleys on the rope, the latter is displaced to the bottom of the groove, so that the possibility of jumping off the rope from the groove is completely excluded. Between the cheeks 3 and 4 of the drive pulley 2, an opening 14 is provided, which is formed by parallel surfaces of the cheeks 3 and 4, to the edge that transform into conical surfaces 15 and 16. On the hub 17 of cheek 3 is fixed ;: a ball bearing 18 carrying an eccentric disk 19. This the disk is fixed by a pin 20 on the housing in a fixed position relative to it; the disk rotates on a ball bearing 21, which is provided with a ring 22 with pore II surfaces 23 and 24. The eccentric disk 19 is positioned in such a way that the ring 22 is fixed fixedly relative to Pusa 1 acts on the tapered surfaces 15 and 16 of the drive pulley 2 by the rotation of the latter and provides precision positioning of places where the rope enters and exits the pulley., it. In places where the rope enters and leaves the pulley, cheeks 3 and 4 are retracted from each other, providing free frictionless insertion of the rope into the pulley and pulling it out. At the same time, on the other side of the drive pawl, due to the presence of bolts b and springs 10, the cable 13 is firmly gripped between surfaces 11 and 12 along a very large arc and at practically uniform pressure. Due to the fact that the ring 22 has a large diameter relative to the diameter of the hole. 14, we can obtain 34 so that the difference in peripheral speeds of surfaces 23 and 24 relative to surfaces 15 and 16 of cheeks 3 and 4 is so small that there would be very little heat dissipation between ring 22 and cheeks 3 and 4. In this case, surfaces 15, 16, 23, and 24 ideally pass relative to each other so that friction, heat generation and wear are reduced to a minimum. In the second embodiment of the implementation of the pulley (Figs. 3 and 4), the ring 22 rests on the rollers 25-27, which rotate freely around the respective shafts 28-30 fixed to the body of the lifting device. In these two variants, the drive pulley is rotated around the E – E axis, and the ring 22 rotates around the Ж – Ж axis either on the eccentric disk G9 / or on eccentrically located rollers 25–27. . The closer the E-E and ZH-Z axes are to each other, the less the friction between the ring 22 and the cheeks 3 and 4. The cheeks 3 and 4 of the cheeks move around the ring 22 and at the same time open in certain places, providing a cable entry into the drive pulley. and take him out without friction. One of the pulley cheeks, for example the cheek 4, must be made of a deformable material. However, this deformability should be small and should not exceed the elastic limit of the material used. By means of the springs 10, the rope is gripped along a large arc when pressure is uniformly applied. This pressure, applied by the cheeks of the pulley to the rope, is established by twisting or unscrewing the bolts 9, thereby achieving the drive of the rope without slipping and without deforming it. On the other hand, the unloading of the pulley cheeks on one side by means of the ring 22 and the local deformation of one pulley cheek occurs in such a way that the pressure on the rope on the other side of the pulley practically does not increase. Ring 22 on one side and cheeks 3 and 4 on the other hand have beveled surfaces that come into contact with one another. Instead of a ring 22 with beveled surfaces, an even cylindrical ring can be used. In this case, surfaces 15 and 16 should be located vertically relative to the E – E axis. Spring elements (Fig. 6-9). made in the form of a pair of pads 31 and 32 with beveled surfaces 33 and 34, respectively, which interact with the cable 13 for a firm grip. The pads 31 and 32 are movably fixed to the pulley body with screws 35-38, which are screwed into the pulley 2 itself. The screws can be used to secure the plate springs 39 and 40 themselves, which apply the required pressure to grip the rope. Each block is provided with rollers 41-44 and 45-48, which interact with said cams or guides 49 and 30. The rope is pressed by springs 39 and 40 in the groove of the driving pulley 2 and is thus slid without slipping, and its input and output frictionless by placing the blocks 31 and 32 in places where the rope enters or leaves the drive pulley. When the pulley is rotated counterclockwise and runs along a vertically extending portion of the rope as shown in FIG. 1, the vertical on the part of the rope 13 is fastened accordingly. Counterclockwise rotation of pulley 2 from shaft 5 causes ring 22 to rotate counterclockwise at the same time. Thanks to the pressing force of the spring 10 acting on surfaces 15 and 16, these surfaces come into contact with surfaces 23 and 24, respectively. When the Ж-Ж axis is shifted by 45 with respect to the Е-Е axis in the second quarter with the selected distance between the Е-Е and Ж-Ж axes and with the selected diameter of the ring 22, the surfaces 23 and 24 of the latter are in contact with the surfaces 15 and 16 on the sufficient extension in the second quadrant of movement with simultaneous rotation of the pulley 2 and the ring 22. In addition, the thickness of the ring 22 or its width in the radial portion of contact with the surfaces 15 and 16 is greater than the width or distance between the surfaces 15 and 16 along the axis parallel to Е-Е or Ж-Ж in the position when u pins 3 and 4 are deflected or pinched by a spring 10 to a rope 13. Thus, after surface 16 comes into contact with surface 24, a part of the pulley (Htc 4). the outer side of the other part of the pulley (cheeks 3), which creates the desired width of the mutual ra between the surfaces 11 and 12 and the opening of the groove for laying the rope. The contacting of ring 22 with surfaces 15 and 16 of procide 1 t on an arc section smaller than the arc corresponding to the second quarter, when surfaces 15 and 16 are disconnected in the second quadrant. Due to this constructive design, the cable 13 experiences a uniform pressure with laterally, due to the deflection of the spring 10 when the pulley 2 passes through the remaining 270, the arc length of contact of the ring 22 with the surfaces 15 and 16 can be both increased, and so reduced due to the corresponding displacement of the Ж – Ж axis respect to the axis E-E to change their relative position. Consequently, depending on the location of the Ж-Ж axis relative to the Е-Е axis, surfaces 15 and 16 can be separated along the arc length equal to, more or less compared to the full quarter, respectively, the change in the length of the contact of the cable 13 sec also depends on the arrangement of the axes surfaces 11 and 12. It is irrelevant that. the side surfaces 23 and 24 converge at the same angle as the surfaces 15 and 16, since for the surfaces 23 and 24 any angle can be taken to provide the desired separation of the surfaces 15 and 16. Despite the fact that as a result of the pressing force applied to ring 22 on the side of the cheeks 3 and 4, the said ring 22 rotates and, since the ring 22 is located on the rotating axis Ж-Ж, displaced relative to the axis ЕЕ Е, taking into account the average diameter of the surfaces 15 and 16, the ring 22 will rotate with a large number of turns, than pulley per unit time . Such a difference in revolutions and displacement of the pulley part causes a certain degree of movement of surfaces 23 and 24 relative to surfaces 15 and 16. Claim 1. The cable driving pulley comprising two cheeks mounted on the drive shaft, forming a cable chute, is adapted for rope clamping and distributing ring, characterized in that, in order to increase the life of the pulley, the rope clamping devices are evenly placed around the cheeks, at least one cheek is made from deformable material. 38
    [2]
    2. The pulley according to claim 1, which is also distinguished by the fact that the distribution ring is mounted on the rolling bodies, is located eccentrically with respect to the drive shaft and is made with beveled side surfaces that interact with the bevels performed on the inner surface of the cheeks. Priority points: 09/26/75 by It. 1 of December 1, 1997 under item 2. Sources of information taken into account during examination 1, US Patent K 3332597, cl. 226-190, 1967.
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    类似技术:
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    同族专利:
    公开号 | 公开日
    DK143182C|1985-06-10|
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    DK143182B|1981-07-13|
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    GB1561769A|1980-03-05|
    NL8006093A|1981-02-27|
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    CA1045109A|1978-12-26|
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    IT1071390B|1985-04-02|
    NO148067C|1989-09-07|
    SE413660B|1980-06-16|
    AT359691B|1980-11-25|
    FR2325599B1|1981-03-20|
    FI61674C|1985-07-15|
    引用文献:
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    FR549510A|1923-02-12|
    AT68193B|1913-06-06|1915-03-26|Titus Thunhart|Overhead conveyor.|
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    DE518706C|1923-08-01|1931-02-19|Wilhelm Dr Ing Karlik|Drive pulley|
    DE429820C|1925-05-29|1926-06-03|Guilleaume Bollen|Two-part pulley|
    DE449153C|1926-04-07|1927-09-06|Franz Casel|Pulley with clamped rope|
    CH119296A|1926-06-29|1927-08-01|Robert Fuchs & Fils|Device for controlling a flexible member.|
    FR658572A|1928-01-23|1929-06-06|Stothert & Pitt Ltd|Improvements to pulleys for motor cables and the like|
    US2076687A|1935-08-23|1937-04-13|Leo J Vogel|Pulley construction|
    FR874311A|1941-07-30|1942-08-04|Fu R Forderanlagen Ernst Hecke|Control pulley with clamping jaws mounted movable on sliding surfaces in the rim of the pulley|
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    FR1401984A|1964-02-05|1965-06-11|Botalam|Thread Thruster|
    US3250514A|1964-03-19|1966-05-10|Simon L Hamalainen|Powered warping device for marine objects|
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    US3635441A|1969-04-23|1972-01-18|Norman S Blodgett|Fishing apparatus and sheave therefor|
    FR2116598A5|1970-11-04|1972-07-21|Pietryka Joseph|
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    US3776519A|1972-01-11|1973-12-04|Fairey Winches Ltd|Cable handling apparatus|
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    US3836120A|1973-02-02|1974-09-17|S Niskin|Power driven block and tackle|
    US4077271A|1975-02-19|1978-03-07|Walter M. Mathews|Drive power transmission element|
    DE2522033C2|1975-05-17|1983-01-05|Greifzug Gesellschaft für Hebezeugbau mbH, 5070 Bergisch-Gladbach|Traction drive|DE2739423A1|1977-09-01|1979-03-08|Rotzler Gmbh Co|THROUGH WINCH|
    JPS6235400B2|1983-01-28|1987-08-01|Akisada Watanabe|
    DE172975T1|1984-08-29|1986-09-04|Secalt S.A., Luxembourg|SPREADING DEVICE FOR TWO-PIECE DRIVE DISCS.|
    DE3540906C2|1985-01-22|1987-04-02|N.V. Sky Climber Europe S.A., Aartselaar, Be|
    BE1000710A4|1987-07-30|1989-03-14|Maes Joris|Hoist.|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BE2054583A|BE833841A|1975-09-26|1975-09-26|LIFTING DEVICE|
    BE2054684A|BE836134R|1975-12-01|1975-12-01|LIFTING DEVICE|
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