CN1543426A

CN1543426A - Hoisting machine for elevator

Info

Publication number: CN1543426A
Application number: CNA028162218A
Authority: CN
Inventors: 安江正德
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2002-06-20
Filing date: 2002-06-20
Publication date: 2004-11-03
Anticipated expiration: 2022-06-20
Also published as: KR100571537B1; EP1514825A1; EP1514825A4; KR20040030153A; DE60236216D1; CN1310820C; WO2004000710A1; EP1514825B1; JPWO2004000710A1

Abstract

A rotary unit having a drive sheave is rotated around a main shaft in an elevator hoisting machine. The drive sheave and a brake drum are integrated with the rotary unit. A plurality of rotary unit side engagement portions are disposed on an end of the brake drum at an intervals from each other in the circumferential direction. A manual handle to manually rotate the rotary unit has a plurality of handle side engagement portions engaged with the rotary unit side engagement portions.

Description

Winch for elevator

Technical field

The Winch for elevator that the present invention, the rotation that relate to the drive pulley that has volume and hang main rope, utilizes drive pulley make down the car that is hung on the main rope carry out lifting.

Background technology

For example, open in the 2000-351548 communique, disclosed Winch for elevator in the past the Japanese Patent spy.In this embodiment, the engagement section that the hand scroll handle is engaged usefulness is located at the end of S. A..When the installation of elevator or when having a power failure, occasion that car is moved, the hand scroll handle is engaged with the engagement section, the brake gear of winch is unclamped, utilize the hand scroll handle to be rotated manually to make S. A..Thus, the drive pulley of winch is rotated, and car just carries out lifting.

But, in recent years, because the popularizing of phase inverter control, speed detector is installed in the winch increase on the end of S. A..In such winch, when on the end that the engagement section is arranged on S. A., as speed detector not being unloaded the hand scroll handle is engaged with the engagement section, so take time and energy very much.

Again, speed detector is set on an end of S. A. and the engagement section is located at occasion on the other end, need the maintenance transposing space of guaranteeing speed detector on every side of portion at one end, and need around the other end, guarantee to utilize the hand scroll handle to carry out the space of operation.Especially, in hoist trunk, be provided with in the machine room-less elevator of winch, will guarantee that around winch broad space is difficult.

Again, make the main shaft that is arranged on the centre of gration be fixed on the winch of the type on the fixed part, even the engagement section is arranged on the end of main shaft, drive pulley is rotated.

Summary of the invention

The present invention makes in order to address the above problem, and its purpose is, acquisition can be dwindled the maintenance space, and can more easily carry out the Winch for elevator of the manual rotary operation of drive pulley.

Winch for elevator of the present invention has: main shaft; Have volume hang elevator main rope drive pulley and be the rotating part that the center is rotated with the main shaft; Make electrical motor that rotating part is rotated and the brake gear that drive pulley is braked, on rotating part, leave the compartment of terrain mutually at circumferencial direction and be provided with a plurality of rotary unit side engagement portions, also have: a plurality of handle side engagement section of engaging with rotary unit side engagement portions is arranged and manually to make rotating part be rotated the hand scroll handle of usefulness.

Description of drawings

The back view of the state when Fig. 1 is the manual rotary operation of Winch for elevator of an example of expression example of the present invention.

Fig. 2 is the cutaway view of the Winch for elevator of Fig. 1.

Fig. 3 is other routine front view of expression rotary unit side engagement portions.

Fig. 4 is another other routine front view of expression rotary unit side engagement portions.

The specific embodiment

Below, best example of the present invention is described with reference to accompanying drawing.

The back view of the state when Fig. 1 is the manual rotary operation of Winch for elevator (gearless winch) of an example of expression example of the present invention, Fig. 2 is the cutaway view of the Winch for elevator of Fig. 1.

Among the figure, shell 1 has outer cover body 2 that is fixed on the fixed part and the discoideus back plate 3 that is installed on the outer cover body 2.At the center of outer cover body 2, be fixed with main shaft 4.On main shaft 4, being installed with main shaft 4 by bearing 6 is the rotating part 5 that the center is rotated.

Rotating part 5 has drive pulley 7 cylindraceous and as the drg drum 8 cylindraceous of drg swivel.Drive pulley 7 and drg drum 8 form on rotating part 5.On drive pulley 7, volume is hung the many main ropes 9 of elevator.Main rope 9 is inserted in a plurality of rope grooves on the peripheral part that is located at drive pulley 7.

Drg drum 8, the 1st end 8a and the 2nd end 8b that is positioned at the opposition side of the 1st end 8a with drive pulley of being provided with 7.On the 2nd end 8b, be provided with a plurality of breach 8c as rotary unit side engagement portions.Breach 8c leaves the circumferencial direction that the compartment of terrain is configured in drg drum 8 mutually.Again, breach 8c is center configuration symmetrically mutually with main shaft 4.In this example, 4 breach 8c are provided with each 90 interval of spending.

Drg drum 8, the double as motor rotor.On the inner peripheral surface of outer cover body 2, fixing motor stator 10 with the state relative with the outer peripheral face of drg drum 8.The electrical motor 11 that rotating part 5 is rotated has drg drum 8 and motor stator 10.

In the inboard of drg drum 8, dispose the brake gear body 12 that drg drum 8 is braked.Brake gear body 12, quilt are carried to be bearing on the plate 3 of back.Again, the supporting structure of brake gear body 12 is not shown.Brake gear (magnet stopper) 13 to drive pulley 7 is braked has drg drum 8 and brake gear body 12.

On the plate 3 of back, be provided with the outer a plurality of peristome 3a that maintain in the face of brake gear body 12 that are used for from shell 1.When turning round usually, utilize lid (not shown) that peristome 3a is closed.As mentioned above, plate 3 upper supports have brake gear body 12 in the back, thereby peristome 3a can not be circular and be divided into a plurality of.

Therefore, when peristome 3a was opened, the part of the end face of the 2nd end 8b of drg drum 8 was being covered by back plate 3 all the time.But when peristome 3a was opened, the anglec of rotation of at least 2 breach 8c and drg drum 8 was irrespectively exposed from peristome 3a.

With manually making rotating part 5 be rotated the hand scroll handle 14 of usefulness, have: the flat handle body 15 that relative to each other the 1st and the 2nd 15a, 15b are arranged; Be located at a plurality of (a pair of) projection 16 of the handle side engagement section that the 1st 15a goes up, conduct engages with breach 8c; Be located at the 2nd handle 17 on the 15b.Handle body 15 has the length bigger than the diameter of shell 1.Again, handle body 15 also can be more less than shell 1, but with it make big, handle 17 leave main shaft 4 far away more, just can easily operate handle 15 with more little power.

Hand scroll handle 14 just can be installed on the rotating part 5 owing to only projection 16 is inserted among the breach 8c, so become easy to the mounting or dismounting of rotating part 5.Again, hand scroll handle 14 is the members that only are installed in when needed on the rotating part 5, when turning round usually, unloads from rotating part 5, can be certainly in the site of storage of regulation.

On the end of back plate 3 sides of main shaft 4, be provided with speed detector 18.Speed detector 18 is around the end of main shaft 4.

Then, action is described.When the common running of elevator, hand scroll handle 14 unloads from rotating part 5, utilizes the peristome 3a that covers back plate 3 to close.When the maintenance of brake gear 13 is checked, unload, make peristome 3a to open on lid again.In the occasion of the maintenance transposing of carrying out speed detector 18, back plate 3 is unloaded from outer cover body 2 again.

Again, owing to certain take place unusually electric currents in the motor stator 10 do not flow the fault that waits, take advantage of the car that is loaded with the passenger to stop at the occasion of floor gap, with drive pulley 7 is rotated, and make car move to hithermost floor.In this occasion, peristome 3a is opened, and for example, as shown in Figure 1, hand scroll handle 14 is installed on the rotating part 5 (drg drum 8).And the limit makes brake gear 13 unclamp the limit and hand scroll handle 14 is operated and rotating part 5 is rotated.

At this moment, because projection 16 is subjected to stopping of back plate 3, so hand scroll handle 14 is rotated continuously.Therefore, for example, if after hand scroll handle 14 rotated to the position of long and two-short dash line from the position of the solid line of Fig. 1, closed brake gear 13 unloaded hand scroll handle 14 from rotating part 5.Then, once more brake handle 14 is installed in the position of solid line, the limit makes brake gear 13 unclamp the limit and makes 14 rotations of hand scroll handle.By repeating such operation, drive pulley 7 is little by little rotated, and car is moved to hithermost floor.

On such Winch for elevator, be provided in a side of on the rotating part 5 on the main shaft 4 owing to the breach 8c that will engage with hand scroll handle 14 is not provided in a side of, so, also can hand scroll handle 14 be installed from the same side of speed detector 18 in the occasion that speed detector 18 is installed on the main shaft 4.Therefore, can be with the axial side of maintenance spatial concentration, so can dwindle the maintenance space that to guarantee at main shaft 4.Therefore, in narrow space, also Winch for elevator can be set, be actv. to elevator of being applied to machine House-less etc.

Again, even hand scroll handle 14 can be installed, so can more easily carry out the manual rotary operation of drive pulley 7 owing to do not unload speed detector 18 yet.In main shaft 4 non-rotary occasions, also can utilize hand scroll handle 14 to be rotated manually to make drive pulley 7 again.

Again, because breach 8c is that the center is disposed mutually symmetrically with main shaft 4, so, also the rotational force from hand scroll handle 14 can be passed to rotating part 5 efficiently although support without 4 pairs of hand scroll handles 14 of main shaft.

Again, expose,, can improve the operation of the manual rotary operation of drive pulley 7 so, also hand scroll handle 14 can be installed even do not unload plate 3 afterwards because breach 8c makes from the peristome 3a of the maintenance usefulness of brake gear 13.

Again, owing to use the integrally formed rotating part 5 of drive pulley 7 and drg drum 8 and breach 8c is arranged on the 2nd end 8b of drg drum 8, so energy will be passed to drive pulley 7 efficiently from the rotational force of hand scroll handle 14.

Can dwindle the maintenance space from carrying out the operation of hand scroll handle 14 with the same side of the maintenance operation of brake gear 13 again.

Again, because rotary unit side engagement portions is made breach 8c and the handle side engagement section is made projection 16, so can be with simple structure, hand scroll handle 14 is engaged with rotating part 5.

In above-mentioned example, represented breach 8c as rotary unit side engagement portions, but also can as shown in Figure 3 bolt hole 8e be arranged on the end face 8d of drg drum 8 as rotary unit side engagement portions again.This occasion, the materials handling in the time of also bolt hole 8e can being used in factory, assembling.

In above-mentioned example, breach 8c is located at the inner peripheral surface side of the 2nd end 8b, and, also breach 8f can be arranged on the outer peripheral face side of the 2nd end 8b as long as the 2nd end 8b integral body is exposed from back plate 3c again.

Again, in above-mentioned example, peristome 3a has been divided into 2, but also peristome can be divided into 3.This occasion is as long as be configured on the summit of equilateral triangle rotary unit side engagement portions just passable.Similarly, in the occasion that peristome is divided into more than 4, also can use the present invention.

Again, in above-mentioned example, main shaft is being fixed, and the winch to main shaft and rotating part are rotated integratedly also can be used the present invention.

Again, in above-mentioned example, breach 8c is arranged on the drg drum 8 in the rotating part 5, and rotary unit side engagement portions also can be arranged on the part beyond the drg swivel of for example drive pulley or motor rotor etc., rotating part.

Claims

1, a kind of Winch for elevator comprises:

Main shaft;

Have volume hang with elevator main rope drive pulley and be the rotating part that the center is rotated with described main shaft;

The electrical motor that described rotating part is rotated;

The brake gear that described drive pulley is braked,

It is characterized in that,

On described rotating part, leave the compartment of terrain mutually at circumferencial direction and be provided with a plurality of rotary unit side engagement portions,

Comprise that also this hand scroll handle has a plurality of handle side engagement section that engages with described rotary unit side engagement portions with manually making described rotating part be rotated the hand scroll handle of usefulness.

2, Winch for elevator as claimed in claim 1 is characterized in that, described rotary unit side engagement portions is center configuration symmetrically mutually with described main shaft.

3, Winch for elevator as claimed in claim 1, it is characterized in that, also comprise having described brake gear is maintained the peristome of usefulness and the shell that described main shaft, described rotating part, described electrical motor and described brake gear are accommodated, described rotary unit side engagement portions is exposed from described peristome.

4, Winch for elevator as claimed in claim 1 is characterized in that,

Described drg portion has and the drg swivel of described drive pulley one rotation and the brake gear body that described drg swivel is braked,

Described rotating part includes described drg swivel,

Described drg swivel has the 1st end that is provided with described drive pulley and is positioned at the 2nd end with described the 1st end opposition side,

Described rotary unit side engagement portions is arranged on described the 2nd end of described drg swivel.

5, Winch for elevator as claimed in claim 4 is characterized in that, described drg swivel is a drg drum cylindraceous, is provided with a plurality of breach as described rotary unit side engagement portions on described the 2nd end of described drg drum.

6, Winch for elevator as claimed in claim 5 is characterized in that, on described hand scroll handle, is provided with a plurality of projections as the handle side engagement section that engages with described breach.