JPH07257858A - Lift with direct-acting driving device - Google Patents

Abstract

PURPOSE: To assemble the reaction part of a lift shaft precisely by forming a linear motor as a synchronous motor, and decentering a travelling cage so as to be fixed to a holding rope for increase in finishing precision of respective structures. CONSTITUTION: A lift 1 is mounted in a lift shaft 2 and has a traveling cage 3 connected to a counter weight 5 through a supporting rope 4. A guide device 6 consisting of two vertical guide rails 7 and a plurality of horizontal members 8 connected to the guide rails 7 mutually is useful for the guide of the travelling cage 3. The lift 1 is driven by the linear motor formed as a synchronous motor, and its short stator is disposed in the dead space of the backface side of the counter weight 5. The short stator is disposed against a magnetic strip piece 15 having a U-shaped cross section, rushes into the magnetic strip piece 15, and is fixed to the horizontal binder 8 bound to the guide rails 7 mutually.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to a lift equipped with a traveling cage, and the traveling cage is connected to a counterweight via a support rope, and the counterweight has a short stator of a linear motor. (Knrzsta
tor) is arranged and the reaction portion formed as a magnetic strip of the short stator is fixed to the shaft wall of the lift.

[0002]

The use of linear motors as a drive for lifts has been known for some time. However, linear asynchronous motors are commonly used for this purpose. Such an asynchronous motor requires a very small air gap between the stator and the reaction part, which makes it essential to have a high finishing accuracy of the individual structural parts and an accurate assembly of the reaction part on the lift shaft. is there.

[0003]

SUMMARY OF THE INVENTION The object of the present invention is therefore to eliminate these existing obstacles and to prevent the disadvantages associated therewith.

[0004]

According to the present invention, the above-mentioned problems can be solved by the linear motor configured as a synchronous motor and the traveling cage being eccentrically fixed to the support rope.

[0005]

This type of eccentric fixing of the support rope strands to the running cage is characterized by what is called a rucksack guiding device, but above all realizes a simple guiding action of the lift rope. The rope extends from the rope fixing point of the counterweight to the rope fixing point of the traveling cage through the rope diverting roller in the upper latching support of the shaft head and is located in almost only one plane. ing. In that case, the rope follows such a traveling course, so that the rope deflecting roller and the guide device for the traveling cage and the counterweight are provided.
It is possible to realize a support structure that is particularly advantageous in that it can be assembled in a simple and accurate manner.

In this connection, it is advantageous if the magnetic strips of the reaction part made of permanent magnets are fixed to the transverse couplings of the guide device arranged in the running cage.
The guiding device can then be designed as a support frame which is fixed to the shaft wall and is closed by itself, which support frame receives all the forces generated during the operation of the lift. , Is transmitted to the shaft wall and the shaft hole.

Furthermore, the support frame together with the guide rails, the lateral coupling members, the magnetic strips fixed to the lateral coupling members and the counterweights form a closed unit-shaped structural member. The case is particularly advantageous. Due to the arrangement of the components proposed according to the invention, the drive unit and the guide unit to be assembled can be manufactured for the lift in a very compact, space-saving and lightweight manner.

Further details of the invention will be apparent, for example, from the following description of embodiments and the appended claims.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENT The lift 1 shown in perspective view in FIG.
It has a traveling cage 3 which is mounted in a lift shaft represented by the reference numeral 2 and which is connected to a counterweight 5 via a support rope 4. For guiding the traveling cage 3, there is provided a guide device, designated by the reference numeral 6, which is composed of two vertical guide rails 7 and a plurality of transverse members 8 which are mutually connected to the guide rails 7. It is useful. On the head part 9 of this guiding device 6 there is located a latching support, designated by the reference numeral 10, which serves as a bearing for the rope diverting roller 11 of the support rope 4.

The lift 1 is driven by a linear motor configured as a synchronous motor, the short stator 12 of which is
It is arranged in the space 14 on the back side of the counterweight 5 which has already been described in the form shown in FIG. This short stator 12 is placed opposite a magnet strip 15 having a U-shaped cross section, and the short stator 12 projects into the magnet strip 15.
1 and 2, it is fastened to the transverse joints 8 which are mutually connected to the guide rails 7.

As can be seen in particular in FIG. 2, the guide rail 7 and the lateral coupling member 8 cooperate with the upper latching support 10 and the bottom support 16 also for guiding the rucksack of the traveling cage 3. It also forms a closed frame by itself, which also helps guide the counterweight 5. At that time, the respective rope fixing points 17 and 18 located on the traveling cage 3 and the counterweight 5 are arranged so that the support ropes 4 can be located in substantially the same plane even with the deflecting roller 11. There is.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a lift according to the present invention.

FIG. 2 is a cross-sectional view of a lift shaft.

[Explanation of symbols]

 1 Lift 2 Lift Shaft 3 Traveling Cage 4 Support Rope 5 Counterweight 6 Guide Device 7 Guide Rail 8 Lateral Connecting Material 9 Head 10 Locking Support 11 Rope Deflection Roller 12 Short Stator 13 Rear 14 Void 15 Magnetic Strip 16 Bottom support 17,18 Rope fixing point

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Stefan Hogel Germany Schweigheim Mülbachweg 3 (72) Inventor Horst Polmann Weilderstadt Brammerberg Strasse 81 (72) Inventor Wolfgang Wald Germany Betichheim-Bissingen Flimrei Strasse 66 (72) Inventor Peter Schneider Germany Ditzingen Hill Schlender Strasse 69-1 (72) Inventor Martin Grosser Germany Böblingen Jahnstrasse 67

Claims (4)

[Claims] 1. A lift having a linear drive device, comprising:
The traveling cage is connected to a counterweight via a support rope, on which the short stator of a linear motor is arranged, the reaction part formed as a magnetic strip of the short stator being attached to the shaft wall of the lift. In the fixed type, the linear motor is configured as a synchronous motor, and the traveling cage (3) is eccentrically fixed to the support rope (4). . 2. A magnetic strip (1) formed from a permanent magnet.
Lift according to claim 1, characterized in that 5) is fixed to the lateral coupling (8) of the guiding device (6). 3. The guide frame (6) comprises a support frame (7/8/1) which itself is closed and fixed to the shaft wall (2).
3. Lift according to claim 2, characterized in that it is configured as 0/16). 4. A support frame, together with a guide rail (7), a lateral coupling material (8), a magnetic strip (15) fixed to the lateral coupling material (8) and a counterweight (5),
4. Lift according to claim 3, characterized in that it forms a closed unitary structural member.