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
  • B66B11/0055—Arrangement of driving gear, e.g. location or support in the hoistway on the counterweight
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B17/00—Hoistway equipment
  • B66B17/12—Counterpoises

Definitions

• the invention relates to a vertical elevator with a cabin, which is connected to a counterweight via at least one traction mechanism, which runs over a deflection device, and which has a drive which can be moved up and down on a stationary, vertical runway
• the drive is connected to the cabin. It is known to arrange the drive above the cabin as well as below the cabin.
• the counterweight is used only to compensate for the weight of the cabin with the drive.
• the loading condition of the cabin can assume two extreme values: in the first extreme case the cabin runs empty, i.e. without a payload, in the second extreme case it runs with the maximum permissible payload. Since these extreme values have to take into account the conditions for both upward and downward travel, the vertical elevator is designed, for example, in such a way that the counterweight is as heavy as the empty car with drive weight + 50% payload, and that the weight of the fully loaded cabin with drive is 50% larger than the counterweight. In such a case, the drive motor only has to be half as strong as a 100% ion Weight balance, which is when the empty cabin is as heavy as the counterweight. This consideration does not take into account friction losses and mass smear forces.
• the object of the invention is to design a vertical elevator of the type presumed to be known so that it can be operated under more favorable weight conditions than the usual vertical elevators. It should be possible to reduce the power of the drive motors with the same power.
• the design of the drive as at least part of a counterweight has the advantage that it is no longer necessary to compensate for the small proportion of the weight in the counterweight that was previously formed by the drive attached to the cabin.
• FIG. 1 - a schematic side view of a first embodiment
• FIG. 2 a view in the direction of arrow II in Figure 1 on the drive
• Figure 3 a section along plane III-III in Figure 2
• Figure 4 an enlarged view of the drive according to Figure 1
• Figure 5 the chassis of the drive 4 without representation of counterweight and without gear
• FIG. 6 an illustration analogous to FIG. 2 of an alternative embodiment of the drive
• FIG. 7 - a section along plane VII-VII according to FIG. 6,
• FIG. 8 - an illustration analogous to FIG another embodiment of the drive
• FIG. 9 shows a schematic section along plane IX-IX according to FIG. 8, 10 shows a section along plane XX according to FIG.
• the same or corresponding parts are each provided with the same reference numerals. If necessary, they only differ from one another by means of hyphens.
• a cabin 1 is guided over guide devices (not shown) and is suspended on a traction means 2a, preferably a rope.
• the traction means 2a runs over a deflection device 2, for example a rope pulley.
• the traction means is connected to the drive designated as a whole by 3.
• the drive 3 interacts with a runway which is formed by two parallel and vertically arranged profile rails 4 and 5.
• the drive takes place by means of an electric drive motor 6, which is followed by a transmission 7 and 8 on two output sides.
• the transmission 7 drives a drive shaft 9, with the ends of which the drive wheels 12a and 12b are connected in a rotationally fixed manner.
• the transmission 8 drives a drive shaft 10 the ends of the drive wheels 14a and 14b are non-rotatably arranged.
• the driven shafts 9 and 10 are mounted in two laterally spaced frame elements 18.
• the frame element 18 is connected to a further frame element 17 via parallelogram links 17a and 18a.
• shafts 15 and 16 are freely rotatable and not driven, which bear counter-wheels 11a and 11b or 13a and 13b at their ends.
• the traction means 2a acts on the two frame elements 17. Under the weight of the drive 3, this attack in conjunction with the parallelogram links 17a and 18a leads to a spreading of drive wheels and counter wheels in the two profile rails 4 and 5, so that a non-slip drive is ensured.
• the frame elements 18, which support the drive shafts 10 and 9, are connected via cross bars 19a and 19b to form a frame which carries counterweights 19.
• the embodiment according to FIG. 6 differs from the first embodiment by the arrangement of a separate drive motor 6a with gear 7a for the drive shaft 9 and the drive motor 6b with gear 8a for the drive shaft 10.
• two separate drive motors ⁇ a 'and 6b' with associated, downstream gearboxes 7a 'and 8a' are also provided, which rotate the drive shafts 9 and 10.
• a tension spring 20 is provided with which play is compensated.
• the two driven shafts 9 and 10 are mounted in frame elements 18 ', which differ from the frame elements of the other two embodiments in that the distances between the driven shafts 9 and 10 are not fixed here.
• the shaft 9 is mounted in a stationary manner, while the shaft 10 is guided so as to be movable in the longitudinal direction of the profile rails 4 and 5 over corresponding slowly displaceable bearing areas of the frame element 18 '.
• the undriven shafts 15 and 16 are mounted in frame elements 17 'arranged on both sides. The distance between the undriven shafts 16 and 15 cannot be changed.
• the non-driven shaft 15 is connected to the driven shaft 9 via two links 23.
• the two frame elements 17 'and 18' are pressed apart by springs 21 and 22, which are designed as plate spring packs.
• the spring force can easily be selected so that the contact pressure of the wheels against the running surfaces of the profile rails is sufficient for a perfect frictional drive.
• the tension element is fastened to the cross member 19a 'of the frame, which carries the counterweights 19'.
• the drive units are connected to one another via a support armature 24 for torque bracing.
• the support anchor 24 is fixedly connected to the transmission 7a 'and extends into an area which is connected to the transmission housing of the transmission 8a'. In this area, the support anchor 24 is guided so as to be displaceable in the longitudinal direction.
• a tensioning device designed as a spring rests on the one hand on a cross member 19c of the frame carrying the counterweights 19 'and on the other hand on a region of the longitudinally displaceable gear 8a'.
• the spring 20 braces the gear 8a 'in relation to the frame carrying the counterweights 19' and this leads to a play compensation of the drives.

Landscapes

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

Applications Claiming Priority (3)

Publications (2)

Family

ID=7635786

Family Applications (1)

Country Status (8)

Families Citing this family (4)

Family Cites Families (9)

• 2000
  • 2000-03-22 DE DE10014002A patent/DE10014002A1/de not_active Withdrawn
• 2001
  • 2001-02-19 TW TW090103730A patent/TW533183B/zh not_active IP Right Cessation
  • 2001-02-20 AT AT01919310T patent/ATE270652T1/de not_active IP Right Cessation
  • 2001-02-20 DK DK01919310T patent/DK1183204T3/da active
  • 2001-02-20 WO PCT/EP2001/001863 patent/WO2001070614A1/fr active IP Right Grant
  • 2001-02-20 ES ES01919310T patent/ES2219516T3/es not_active Expired - Lifetime
  • 2001-02-20 EP EP01919310A patent/EP1183204B1/fr not_active Expired - Lifetime
  • 2001-02-20 DE DE50102785T patent/DE50102785D1/de not_active Expired - Fee Related
  • 2001-02-20 PT PT01919310T patent/PT1183204E/pt unknown

Non-Patent Citations (1)

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