Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
  • B66B11/0035—Arrangement of driving gear, e.g. location or support
  • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway

Definitions

• the invention relates to a cable-driven elevator with a car guided inside a shaft on rails and with a traction sheave which is connected via a mechanical torque transmission device to an electric motor having a braking device.
• the traction sheave and the electric motor connected to it via a gear and / or a clutch are accommodated in a machine room, from which the suspension cables are directly or indirectly connected to the elevator car in the shaft and through openings in the floor of the machine room a counterweight is connected.
• the control cabinets of the elevator control can also be accommodated there without interference and, furthermore, all these units can be conveniently installed and serviced nevertheless, this construction method can be regarded as disadvantageous due to the building effort and the resulting restrictions on use on the building roof or in the area of the top floor.
• the invention has for its object to avoid the above-described disadvantages of designing the drive of a rope-driven elevator via a traction sheave so that a convenient accessibility for assembly and maintenance work is nevertheless ensured in a space-saving, inexpensive construction.
• the invention creates an elevator system without a machine room, which does not have the disadvantages described above and, moreover, allows a high degree of prefabrication due to the chosen arrangement of a control and drive unit and thus leads to short assembly times.
• the inventive concept offers further significant advantages, which include, among other things, - That, without deviating from the usual elevator dimensions (shaft cross-section, car width), the existing shaft cross-section is better utilized,
• the maintenance personnel can release the brake device, which is easily accessible from the floor, and / or move the engine by hand to an exit position for the passengers.
• the single-sided drive unit only needs to be doubled and installed with the same advantages on both sides in the area of the top stop.
• FIG. 1 shows a basic illustration of a cable guide example in a single-sided elevator drive according to the invention
• Figure 2 is a plan view of a one-sided elevator drive according to the invention
• FIG. 5 shows a horizontal partial section through an elevator shaft including a car with a one-sided elevator drive according to the invention arranged above the door frame of the station,
• FIG. 6 shows a variant of the elevator drive according to FIG. 5, in which a longer, slimmer motor including the brake extends from the shaft opening to the traction sheave,
• Figure 7 is a plan view similar to Figure 5, in which the shaft laterally offset in parallel by a gear mounted on the drive pulley on the e.g. motor connected to the side of the shaft door is connected,
• FIG. 8 is a plan view similar to FIGS. 5, 7, in which the drive unit as a whole by a small amount from the drive pulley to the motor. the angular amount runs sideways at the end of the shaft,
• FIG. 9 shows a front view of an elevator drive according to the invention with two identical drive units arranged on both sides of the uppermost car stop, the motors and braking devices arranged in front of which are accessible on both sides of the shaft door,
• Figure 10 is a plan view of a double-sided elevator drive with two drive units similar to Figure 2, the angular gear are connected to each other by a synchronous shaft arranged at a distance above the top car stop, and
• FIG. 11 shows a basic illustration of the cable guide or connection of support cables guided over two traction sheaves to the car and counterweights.
• the guidance of the cables 17 in an elevator the car 10 of which is driven by a traction sheave 16 arranged in the area between the car side wall 12 and the adjacent shaft side wall 14, from an upper fixed point 18 around two cable pulleys 20, which are mounted on the underside of the car there via the traction sheave 16 down to a deflection sheave 24 provided with an attached counterweight 22 and back to a second upper fixed point 26.
• the rope force acts symmetrically on the car, so that the vertical car guides fixed in the shaft are not or only slightly stressed.
• the car can be driven upwards above the height of the traction sheave or the traction sheave and its drive, which is approximately at the height of the traction sheave axis, can be located to the side of the top car stop.
• the two pulleys 20 it is also possible to attach the two pulleys 20 to the top of the car ceiling and then to store the traction sheave 16 at such a height that the car reaches the top stop and can pass over it slightly.
• the symmetrical car suspension according to FIG. 1 is advantageous, as it enables a central suspension of the car without additional rope deflection pulleys and, given the shaft dimensions and possible car and door dimensions, enables maximum space and user convenience.
• a lift system designed in this way does not impose any restrictions with regard to the car and shaft dimensions and therefore meets every requirement.
• the traction sheave 16 is arranged parallel to the car side wall 12.
• a gearwheel angle gear 28 is connected, the input shaft 30 of which runs parallel to the shaft side wall 14 and extends without hindrance through the available distance between the maximum open position of the car door 32 on the one hand and the shaft side wall on the other hand and with the output shaft of an axially parallel to it Shaft 30 arranged electric motor 36 connected can be.
• Bremseinrichtui g 38 motor 36 is in the region of a vertical shaft door frame 35, can partially penetrate this or be arranged in front of it and, if necessary, also partially find space in a recess of the shaft side wall 14 which is open towards the front.
• traction sheave 16, angular gear 28, shaft 30 and motor 36 with brake device 38 are mounted or attached to a common mounting frame, the fastening connections for support and connection to the car and / or counterweight guide rails and possibly with additional the shaft side wall 14 and / or shaft door frame has attached brackets or other supporting parts.
• the drive unit or the shaft 30 combined by the mounting frame preferably extends horizontally next to the shaft door 34 into the described area inside the shaft, starting from the motor 36, which is arranged either laterally or laterally above the shaft door opening 31 and is accessible from the front.
• traction sheave 16 and motor 36 are arranged on a stiffened mounting frame 40 with an axis of rotation extending transversely to shaft side wall 14 and are connected to one another via a belt transmission.
• a toothed belt transmission chosen as an example comprises a first pinion 42 seated on the motor shaft, which is connected to a larger toothed wheel 46 on an intermediate shaft 48 via a toothed belt 44 which crosses the available distance (for example 60 to 80 mm) between the door and the wall, as well as a second pinion 50 on the intermediate shaft 48, the larger one connected to the drive pulley 16 via a toothed belt 52
• Gear 54 drives.
• the gears are through
• the mounting frame 40 can be pushed with its flat underside on a narrow support attached to the shaft wall from the floor into the shaft and screwed to the car and / or counterweight guide rails via connecting plates 58 fastened to the frame.
• the motor 36 including the braking device 38, accessible from the floor side is fastened to a connecting flange 56.
• a cover plate 59 is indicated as an example of a cladding, which is removably fastened to the shaft side wall 14 and to the shaft door frame 35.
• FIGS. 5 to 7 show exemplary embodiments in which the axes of rotation of the traction sheave 16 and motor 36 run parallel to the car and shaft side walls.
• a reduction gear unit combined with the motor and braking device shown in simplified form as block 60 is connected to the drive pulley 16 via a shaft 30 which projects horizontally into the region of the shaft.
• the drive unit which can be arranged on a uniform mounting frame as before, is located laterally above the shaft door and the car door.
• the mounting frame can be fastened in the area of the engine block 60 to a lintel or beam crossing the shaft opening.
• the car door or its surrounding frame in the area of the motor will be reduced or modified so that a car passing the station with the doors closed passes the shaft 30 unhindered.
• the drive unit consists only of a gearless motor 62 which is approximately matched to the diameter of the traction sheave 16 and which, owing to its reduced diameter, has a relatively large length, so that an intermediate shaft is unnecessary.
• the dimensions can be selected so that the motor including the braking device 64 arranged in front of it are accessible on the shaft opening side next to the shaft door on the top floor.
• a reduction gear 66 is connected to the traction sheave 16, the input of which for the purpose of alignment with the aforementioned available distance and the Motor shaft is radially offset with respect to the traction sheave axis.
• the shaft 30, which runs parallel to the side wall 14 of the shaft also extends past the door housings to the motor housed at the front of the shaft opening. Due to this design, the drive unit including traction sheave can be installed at any convenient height to the side of the bus stop on the top floor.
• recesses or cutouts which are suitably dimensioned can be provided at certain points in the shaft wall for space-saving accommodation of the drive unit, for example a cutout 68 for the projecting part of the reduction gear 66 or a cutout 70 for mounting and complete or partial inclusion of the motor and brake unit on the door side 15 of the shaft.
• the drive according to the invention including the transmission device and the motor are inclined sideways by the same angular amount so as to feed the shaft 30 of the transmission device hmdurcl through the existing distance between the shaft side wall and the housings of the car and shaft doors.
• the transmission shown in FIG. 8 is also ensured if its axis is inclined sideways according to the plan view in FIG. 8 by a small angular amount (approximately up to 10 °) with respect to the plane of extent of the shaft side wall.
• the output of the motor or transmission can also be axially aligned with the shaft 30, one for the motor which then projects laterally from the shaft to the outside a correspondingly larger recess is provided in the shaft side wall.
• the above-described one-sided drive unit can be doubled and installed in a mirror image arrangement on both sides in the area of the top stop.
• the front view in FIG. 9 shows an elevator drive according to the invention with two identical drive units arranged on both sides of the uppermost car stop, the motors or braking devices 72 arranged in front of them being accessible from the floor on both sides of the shaft door 74.
• the motors or the respective mounting frames carrying them are, for example, on the underside of a concrete lintel crossing the shaft door opening or a steel beam 76 or on the side of the shaft wall 14 attached, where the entire landing door hanger can be connected.
• the elevator control 80 for both motors can be accommodated in the front wall of the shaft above the lintel or the beam 76 within the shaft height provided as a passage. In order to obtain sufficient space for the elevator control even when the floor is low, it can then be installed in the space available on both sides of the shaft door 74 below the motors.
• the motors, including the braking devices and possibly control cabinets arranged underneath, are preferably clad by screw-on covers.
• the embodiment of a double-sided elevator drive shown in FIG. 10 comprises bevel gears 28 connected to the traction sheaves 16, similar to FIG. 2. According to an additional feature, these bevel gears can be attached to the side of the traction sheave facing the car and connected to one another by a synchronous shaft 78. This design is used for a relatively large height of the top floor if it includes the safety drive-over path of the car via the top stop and the drive units are then arranged laterally above the shaft door.
• FIG. 11 shows the particularly simple cable guide in the case of drive units arranged on both sides of the car path according to the invention if the support cables 17 running over the two traction sheaves 16 are firmly connected at one end to the underside of the car 10 and at the other end to a counterweight 22.
• the above-described details and variants of the elevator system according to the invention can also be used to advantage if the traction sheave (s) and their drive unit (s) are arranged in the area of the lowest car stop or, if appropriate, a laterally accessible pit located underneath.
• the cable guide shown in Figure 1 or 11 must be adapted accordingly by two pulleys attached in the shaft head.

Landscapes

• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Cage And Drive Apparatuses For Elevators (AREA)
• Types And Forms Of Lifts (AREA)
• Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
• Elevator Door Apparatuses (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7828463

Family Applications (1)

Country Status (6)

Families Citing this family (11)

Family Cites Families (11)

• 1997
  • 1997-05-02 DE DE19718626A patent/DE19718626C1/de not_active Expired - Fee Related
• 1998
  • 1998-04-30 WO PCT/EP1998/002549 patent/WO1998050299A1/fr active IP Right Grant
  • 1998-04-30 AT AT98925505T patent/ATE210067T1/de active
  • 1998-04-30 EP EP98925505A patent/EP0979205B1/fr not_active Expired - Lifetime
  • 1998-04-30 ES ES98925505T patent/ES2149143T3/es not_active Expired - Lifetime
  • 1998-04-30 CN CN98804753A patent/CN1094109C/zh not_active Expired - Fee Related

Non-Patent Citations (1)

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