Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B7/00—Other common features of elevators
  • B66B7/06—Arrangements of ropes or cables
• • 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
  • B66B11/04—Driving gear ; Details thereof, e.g. seals
  • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation

Definitions

• the present invention relates to a driving device for an elevator installed at the bottom of a hoistway, and more particularly to a waterproof structure thereof.
• Fig. 11 is a configuration diagram showing an example of a conventional elevator, with a rope deployed.
• Fig. 12 is an enlarged configuration diagram showing the bottom of the hoistway in Fig. 11, where the car is at the lowest descent position. It shows a state where it has descended to.
• a hoist 2 is installed at the bottom la of the hoistway 1.
• the winding machine 2 includes a motor 3, a traction machine 4 rotated by the motor 3, and a brake device 5.
• the entire winding machine 2 is covered with a waterproof cover 6.
• the intermediate portion of the rope 9 that suspends the car 7 and the counterweight 8 in the hoistway 1 is wound around the truncation sheave 4.
• the waterproof cover 6 is provided with an opening 6 a for pulling out the rope 9.
• Both ends of the rope 9 are fixed to the upper part of the hoistway 1.
• the rope 9 is wound around first and second return wheels 10, 11 provided at the upper part of the hoistway 1.
• FIG. 12 shows a state in which the car 7 has descended to the lowest descending position (a state in which the car 7 descends further below the lowest floor and collides with a buffer (not shown) and stops).
• the conventional waterproof cover 6 as described above covers the entire hoisting machine 2, so that both the size and the weight increase. For this reason, the maintenance space for the bottom la of the hoistway 1 is reduced, and a lot of labor is required for attaching and detaching and transporting the waterproof cover 6.
• the water can be prevented from entering by the waterproof cover 6 only when the water level is up to the height h1 of the opening 6a of the waterproof cover 6.
• Japanese Utility Model Laid-Open Publication No. 63-457761 shows an elevator in which a waterproof case is arranged at the bottom of a hoistway and a buffer is installed in the waterproof case.
• a hoist is installed in the machine room above the hoistway, and the waterproof structure of the hoist is not shown.
• a hoist is installed at the bottom of a hoistway, and an electric motor and a control device are arranged at a position higher than the sheave of the hoist. The evening is shown. However, with such measures, the hoist will be immersed in water at a lower water level than when the waterproof cover 6 shown in Fig. 12 is used. Disclosure of the invention
• An elevator driving apparatus includes a motor main body in which a rotor is provided in a frame, and a motor shaft rotated by the motor main body.
• FIG. 1 is a front view showing an elevator driving apparatus according to Embodiment 1 of the present invention.
• FIG. 2 is a plan view showing the elevator driving apparatus of FIG.
• FIG. 3 is a front view showing a state in which the car has been lowered to the lowest lowered position, and the rope waterproof cover of FIG. 1 has been compressed;
• FIG. 4 is a front view showing an elevator driving apparatus according to Embodiment 2 of the present invention
• FIG. 5 is a front view showing a main part of a rope waterproofing part of an elevator driving apparatus according to Embodiment 3 of the present invention.
• FIG. 6 is a plan view showing the waterproof cover for the rope of FIG. 5,
• FIG. 7 is a side view showing the waterproof cover for the rope of FIG. 5,
• FIG. 8 is a front view showing an elevator driving apparatus according to Embodiment 4 of the present invention
• FIG. 9 is a circuit diagram showing an electric circuit including the heating element of FIG. 8,
• FIG. 10 is an exploded perspective view showing a main part of an elevator driving apparatus according to Embodiment 5 of the present invention.
• Fig. 11 is a configuration diagram showing an example of a conventional elevator, with a rope developed.
• FIG. 12 is a configuration diagram showing an enlarged bottom portion of the hoistway of FIG. 11. BEST MODE FOR CARRYING OUT THE INVENTION
• FIG. 1 is a front view showing an elevator driving apparatus according to Embodiment 1 of the present invention.
• FIG. 2 is a plan view showing the elevator driving device of FIG. 1
• FIG. 3 is a front view showing a state in which the car has been lowered to the lowest lowered position and the waterproof cover for the rope of FIG. 1 has been compressed.
• the configuration of the entire elevator other than the drive unit is the same as that in FIG.
• a base 21 is installed at the bottom la of the hoistway 1.
• a hoisting machine 22 for raising and lowering the car 7 is installed on the base 21.
• the winding machine 22 includes a waterproof motor 23, a traction sheave 24, and a brake device 25.
• the waterproof motor 23 has a motor main body 23a having a rotor, windings, etc. provided in a frame, and a motor shaft 23b rotated by the motor main body 23a. are doing.
• the trough sheave 24 is fixed to the motor shaft 23b, and a rope 9 for raising and lowering the car 7 is wound from above.
• the brake device 25 is connected to the axial end of the motor 23 opposite to the traction sheave 24, and brakes the rotation of the motor shaft 23b.
• a steel sheet waterproof cover 26 for covering the traction sleeve 24 is tightly connected to one end face of the main body 23a in the axial direction.
• An inspection window 27 that can be opened and closed is provided on the sheave waterproof cover 26.
• a waterproof steel bar 28 made of a steel plate and covering the brake device 25 is closely connected to the other end face of the motor body 23 a in the axial direction.
• These waterproof covers 26, 28 may be made of plastic, and in that case, the whole or a part of the waterproof covers 26, 28 may be made transparent.
• the frame of Moh 23 is not covered with the waterproof covers 26 and 28 and is exposed in the hoistway 1.
• the rope waterproof cover 29 has a bellows structure that can expand and contract in the direction in which the car 7 moves up and down.
• the waterproof main body 23a having a waterproof structure by using the waterproof main body 23a having a waterproof structure, the motor 23 is not covered with a waterproof cover, and the traction mechanism 24 and the brake device 25 are not covered. Since they are covered with separate waterproof covers 26, 28, respectively, the entire waterproof covers 26, 28, 29 can be miniaturized, and the maintenance work space at the bottom 1a of the hoistway 1 can be reduced. It can be sufficiently secured. In addition, since each of the waterproofing bars 26, 28, and 29 is small and lightweight, attaching and detaching operations are facilitated.
• the heat dissipation of the module 23 is not covered by the waterproof cover. It is good, and it is possible to prevent the increase in the size of the module.
• the rope waterproof cover 29 is simply compressed without being damaged. Therefore, the height h2 from the bottom of the hoistway 1 to the upper end of the waterproof cover for ropes 29, that is, the water level at which the hoisting machine 22 is immersed in water, must be higher than the conventional h1. Can be. Furthermore, by providing an inspection window 27 and making the waterproof covers 26 and 28 from transparent plastic, for simple inspections, the waterproof covers 26 and 28 can be removed without removing them. And workability is improved. It is also possible to make only the inspection window transparent.
• the rope waterproof cover 29 having the bellows structure is used. However, if the rope waterproof cover does not interfere with the car 7, the bellows structure may be omitted.
• Embodiment 2
• the traction sleeve 24 is arranged at one end of the motor 23 and the brake device 25 is arranged at the other end.
• the brake device 25 is arranged at the other end.
• a traction machine 24 and a brake device 25 at one end of the evening 23 and cover the traction machine 24 and the brake device 25 with one waterproof cover 40.
• FIG. 5 is a front view showing a main part of a rope waterproof cover of an elevator driving apparatus according to Embodiment 3 of the present invention
• FIG. 6 is a plan view showing a rope waterproof cover of FIG. 5
• FIG. 7 is a side view showing the waterproof cover for the rope of FIG.
• a pair of rollers 30 and a pair of sliding plates 31 serving as rope protection members for preventing damage to the rope 9 due to contact with the rope waterproof cover 29 are provided inside the rope waterproof cover 29. It is provided in.
• Other configurations are the same as in Embodiment 1.o
• FIG. 8 is a front view showing an elevator driving apparatus according to Embodiment 4 of the present invention
• FIG. 9 is a circuit diagram showing an electric circuit including the heating element of FIG.
• a heating element 32 which is energized and generates heat is provided in a sheave waterproof cover 26.
• the power source 33 and the switch 34 are connected to the heating element 32.
• Other configurations are the same as those of the first embodiment.
• FIG. 10 is an exploded perspective view showing a main part of an elevator driving apparatus according to Embodiment 5 of the present invention.
• the fifth embodiment aims at lowering the manufacturing cost compared to the configuration shown in the first embodiment.
• a mounting portion 23c for mounting the brake device 25 is provided at an axial end of the motor body 23a. Further, a plurality of screw holes 23 e are provided in the axial end face 23 d of the motor body 23 a.
• a pair of arc-shaped adapter plates 34a, 34b which are combined to form one ring are joined to the axial end face 23d of the motor body 23a via a silicon seal material 41, It is fixed to the motor body 23a by a plurality of screws 35.
• the adapter plates 34a and 34b are provided with a plurality of through holes 34c through which the screws 35 pass.
• a plurality of screw holes 34d are provided outside the holes 34c of the adapter plates 34a and 34b.
• the adapter plates 34a and 34b are braked via a ring-shaped rubber packing 36.
• the waterproof cover 28 for the key is adhered.
• the rubber packing 36 and the waterproof bar for brake 28 have a plurality of through holes 36a and 28a corresponding to the screw holes 34d.
• the waterproof cover 28 for the brake and the rubber packing 36 are connected to the adapter plates 34a and 34b by a plurality of screws 37 screwed into the screw holes 34d through through holes 36a and 28a. Fixed.
• Other configurations are the same as those in the first embodiment.
• the outer peripheral portion of the motor body 23a is made of an animal, and the axial end face 23d on the brake device 25 side is omitted from machining, and remains as a skin surface. This is because the mounting portion 23 c for mounting the brake device 25 hinders machining. Therefore, even if the brake waterproof cover 28 is directly attached to the motor main body 23a, a gap is formed and water may enter.
• the waterproof cover for brake 28 is attached to the module main body 23 a via the adapter plates 34 a and 34 b and the rubber packing 36.
• a silicon material 41 is interposed between the adapter plates 34a and 34b and the motor body 23a.
• the silicone sealing material 41 is initially in a liquid state, but hardens as time passes, and makes the adapter plates 34a, 34b and the module main body 23a closely adhere without any gap.
• the surfaces of the adapter plates 34a and 34b are smoothly machined. To prevent water from entering.
• the mounting structure of the waterproof cover for brake 28 it is possible to more reliably prevent water from entering without having to machine the axial end face 23d of the motor body 23a. Therefore, the manufacturing cost can be reduced.

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• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Cage And Drive Apparatuses For Elevators (AREA)

Priority Applications (4)

Applications Claiming Priority (1)

Publications (1)

Family

ID=14234848

Family Applications (1)

Country Status (4)

Cited By (3)

Families Citing this family (6)

Citations (2)

Family Cites Families (1)

• 1999
  • 1999-02-03 CN CN99802365A patent/CN1088035C/zh not_active Expired - Fee Related
  • 1999-02-03 WO PCT/JP1999/000461 patent/WO2000046139A1/ja active Application Filing
  • 1999-02-03 EP EP99902824A patent/EP1067082B1/de not_active Expired - Lifetime
  • 1999-02-03 DE DE69941482T patent/DE69941482D1/de not_active Expired - Lifetime

Patent Citations (2)

Non-Patent Citations (1)

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