CN108792863A

CN108792863A - Elevator

Info

Publication number: CN108792863A
Application number: CN201710286574.3A
Authority: CN
Inventors: 川端亮平; 假屋智贵
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2017-04-27
Filing date: 2017-04-27
Publication date: 2018-11-13
Anticipated expiration: 2037-04-27
Also published as: CN108792863B; JP6770183B2; WO2018199134A1; JPWO2018199134A1

Abstract

The present invention relates to a kind of elevator (100) comprising：Car (104), counterweight (106) and traction machine (110).The counterweight has：To roller (206), it passes through holder (212,214,215,216) setting is in the upper beam (202b) of counterweight frame (202), and rotational plane (400) is between the length direction of upper beam with scheduled angle (θ)；Safety screen (220), it is by longitudinal separable a plurality of points of baffles (222,224) it constitutes, it is fixed on holder, to block the side to roller, it is each that baffle is divided to have bending part (222a, 224a), the floor projection of the bending part close to the floor projection of holder in the outwardly projecting lateral ends of floor projection of its floor projection from holder.Accordingly, it can not only prevent the finger etc. of maintenance personal to be involved in roller, but also may insure the interval between counterweight and car.

Description

Elevator

Technical field

The present invention relates to a kind of elevators.

Background technology

The elevator being commonly used is traction elevator.This elevator drives car and right by traction machine by hoist ropes Refitting is set.According to the winding of hoist ropes used by elevator, the counterweight of many elevators is provided with to roller.Moreover, at certain In the security regulations of a little countries, it is desirable that take the peace that finger etc. can be prevented to be involved in roller around to roller Full measure.

In counterweight disclosed in Japanese patent gazette special open 2013-49530, roller is arranged and is constituted by channel steel Counterweight frame upper beam 20 and column 18 slot in (referring to the bulletin Fig. 1).The upper beam 20 and column 18 of counterweight frame can hide The side and top to roller are kept off, to prevent the finger etc. of maintenance personal to be involved in roller.As shown in Fig. 1 of the bulletin, It is parallel with the length direction of upper beam 20 to the rotational plane of roller in this counterweight.As long as so to the thickness of roller Less than the groove width of upper beam 20 and column 18, so that it may roller will be arranged in the slot of upper beam 20 and column 18, make upper beam 20 and column 18 play the role of safety guard.

" rotational plane " mentioned here refers to a little drawn rail when rotated to leaving rotary shaft in roller (pulley) Plane where mark (circle), normal are parallel with the rotary shaft to roller (pulley).As it can be seen that can have numerous rotation to roller Plane, but these rotational planes are all mutually parallel.So when inquiring into the direction of rotational plane, it can be arbitrarily chosen In a rotational plane.

When the hoistway of elevator is very narrow, such as in the hoistway of machine room formula elevator, need in narrow space The various devices such as interior setting car, counterweight, traction machine.At this moment, need the trend to hoist ropes, angle etc. carry out it is ingenious and Rational design, and using hoist ropes by trend, the angle of hoist ropes is adjusted in the pulleys such as roller.Therefore, A required angle is formed sometimes for the length direction of rotational plane and counterweight frame upper beam to roller.In such case Under, space of the roller shared by the width direction of counterweight frame upper beam is increased, so it is difficult to be disposed at counterweight frame upper beam with And in the slot of column.If aiming at the safety guard for roller being arranged a box, in general, the horizontal of the safety guard is thrown Shadow will significantly exceed the floor projection of counterweight other parts, so when counterweight moves up and down it is difficult to ensure that the peace Required interval is kept between other devices, instrument (such as car) in full cover and hoistway, is easy to happen collision.

Invention content

Technical problem to be solved by the invention is to provide a kind of elevator, structure can both prevent the finger of maintenance personal Etc. being involved in roller, moreover it is possible to make to keep required interval between counterweight and other devices, instrument.

To solve the technical problem, elevator of the invention includes：Lift the car in hoistway；By hoist ropes with it is described The counterweight that car is connected；Pass through the traction machine of car and the counterweight described in the traction wire saws.It is described right Refitting, which is set, to be had：To roller, the upper beam in counterweight frame is arranged by holder, to wind the hoist ropes, rotational plane There is scheduled angle between the length direction of the upper beam；Safety screen, by longitudinal separable a plurality of points of baffles It constitutes, is fixed on the holder, to block the side to roller, each divide baffle in its floor projection from the branch The outwardly projecting lateral ends of floor projection of frame have bending part, the level of the floor projection of the bending part to the holder It projects close.

Safety screen possessed by elevator of the present invention can block the side to roller, prevent the quilts such as the finger of maintenance personal It is involved in roller.The safety screen is plate, simple in structure, at low cost.The bending part of the safety screen is close to holder, reduces Safety screen protrudes outward the overhang of (especially prominent to car direction) from holder, so as to ensure safety screen with Required interval is kept between other devices, instrument in the hoistways such as car, is avoided collision.The safety screen is by longitudinal separable A plurality of points of baffles are constituted, when installation divides baffle successively, convenient for confirming safety screen and the spacing between roller.In addition, more Lower section can be only unloaded when changing hoist ropes divides baffle, can reduce workload in this way, improves operating efficiency.

In addition, other technologies problem to be solved by this invention, and the other technical characteristics of the present invention and its effect will It is illustrated by the following embodiment.

Description of the drawings

Fig. 1 is the schematic diagram for being schematically indicated one embodiment of elevator of the present invention.

Fig. 2 is the structural schematic diagram for the counterweight for being schematically indicated elevator of the present invention.

Fig. 3 is the enlarged diagram to structure near roller shown in Fig. 2.

Fig. 4 is the vertical view of structure shown in Fig. 3.

Fig. 5 is schematically indicated the state after laying down safety screen in counterweight shown in Fig. 2.

Label > in < attached drawings

100 elevators；102 hoistways；102a well enclosures；104 cars；106 counterweights；108 hoist ropes；110 traction machines； 202 counterweight frames；202a columns；202b upper beams；202c underbeams；204 pairs of pouring weights；206 pairs of rollers；212 the 1st holders；214 the 2nd Frame；215 the 3rd holders；216 the 3rd holders；218 the 4th holders；220 safety screens；Divide baffle on 222；222a bending parts；Under 224 Divide baffle；224a bending parts；232 anti-detachment plates；234 anti-detachment plates；236 dustproof covers；238 dustproof covers；400 rotational planes.

Specific implementation mode

With reference to the accompanying drawings and embodiments, the specific implementation mode of the present invention is described in detail.

Fig. 1 is the schematic diagram for being schematically indicated one embodiment of elevator of the present invention.As shown in Figure 1, elevator 100 includes hoistway 102, car 104, counterweight 106 and traction machine 110.Elevator 100 is machine room formula elevator, and traction machine 110 is also disposed at In hoistway 102.Car 104 is connected with counterweight 106 by hoist ropes 108.Hoist ropes 108 is wound on draging for traction machine 110 On running wheel.Traction machine 110 drives car 104 and counterweight 106 by hoist ropes 108, makes its lifting in hoistway 102.

Fig. 2 is the structural schematic diagram for the counterweight 106 for being schematically indicated elevator of the present invention.Fig. 2 is by two components in left and right It constitutes.Left figure is the front view of counterweight 106, and right figure is the right view of counterweight 106.As shown, counterweight 106 Including counterweight frame 202, to pouring weight 204, to roller 206 and safety screen 220.Counterweight frame 202 mainly by two column 202a, Upper beam 202b and underbeam 202c are constituted.The inside of counterweight frame 202 is mounted with a plurality of to pouring weight 204.Roller 206 is passed through multiple Several holders are arranged in upper beam 202b, to wind hoist ropes 108.It is equipped with safety screen 220 in the side to roller 206.

Fig. 3 is shown in Fig. 2 to the enlarged diagram of structure near roller 206.Fig. 4 is the vertical view of structure shown in Fig. 3.For Convenient for explanation to the relative position relation of roller 206 and other positions of elevator, also shown to roller 206 in Fig. 4 Rotational plane 400 (being indicated with double dot dash line in figure), counterweight frame 202, car 104 and immediate well enclosure 102a.In addition, The shape of safety screen 220 for convenience of description, and illustrate that the structure of the fixed holder to roller 206, Fig. 5 are schematically indicated State after laying down safety screen 220 in counterweight shown in Fig. 2.

As shown in figure 4, in the present embodiment, to the length direction (figure of the rotational plane 400 and upper beam 202b of roller 206 In left and right directions) between have scheduled angle theta (0 ° of 90 ° of < θ <).The size of angle theta according to the trend of hoist ropes 108 and Depending on angle.

As shown in Fig. 2 or even Fig. 5, upper beam 202b is mounted on by a plurality of holders to roller 206.These holders include the 1 holder 212, the 2nd holder 214, the 3rd holder 215, the 3rd holder 216 and the 4th holder 218.1st holder 212 is a substrate, It is fixed on upper beam 202b by angle steel and bolt and nut.2nd holder 214 is a U-steel, opening up to be fixed on the 1st Frame 212.And the 3rd holder 215 of plate and the 3rd holder 216 are on end fixed on two cell walls of the 2nd holder 214 respectively.Counterweight Wheel 206 is arranged between the 3rd holder 215 and the 3rd holder 216, by the 3rd holder 215 and the support of the 3rd holder 216 to roller 206 Rotary shaft.4th holder 218 is a U-steel, across to roller 206, the 3rd holder 215 and the 3rd holder coupled from above 216.4th holder 218 can not only reinforce the support of two the 3rd holders, but also the finger etc. of maintenance personal can be prevented to be involved in pair Roller 206 can also block the dust fallen to roller 206.

As shown in Figures 3 and 4, near the edge of left and right two to roller 206, it is respectively arranged with 232 He of anti-detachment plate Anti-detachment plate 234.Because the edge of left and right two to roller 206 is hoist ropes 108 respectively enter to the grooving of roller 206 and from The position of grooving is opened, hoist ropes 108 is easy the grooving to roller 206 from the disengaging of these positions, so anti-in the setting of these positions Disengaging plate 232 and anti-detachment plate 234 can prevent hoist ropes 108 from the grooving disengaging to roller 206.In addition, in the 4th holder 218 end of left and right two, further respectively has dustproof cover 236 and dustproof cover 238, to block the dust fallen to roller 206.

In this specification, used when describing the position of component part (for example, parts, position etc.) of product, direction The statements such as "upper", "lower", "left", "right", "front", "rear", be essentially the opposite position for indicating each component part in attached drawing It sets, direction.In addition to recording specific annotation in the present specification or limiting, these statements do not indicate that absolute position, side To.

As shown in Figures 2 and 3, the maximum of the counterweight 106 of the present embodiment elevator is characterized in being equipped with safety screen 220. Safety screen 220 is made of longitudinal separable two points of baffles, i.e., on divide baffle 222 and lower point of baffle 224.On divide baffle 222 and lower point of baffle 224 be plate.On divide baffle 222 and lower point of baffle 224 to be bolted on the 3rd holder 215, use To block the side (side towards car 104) to roller 206, to prevent the finger etc. of maintenance personal to be involved in pair Between roller 206 and hoist ropes 108.It is simple in structure since safety screen 220 is plate, it is at low cost.

In the present embodiment, to another side of roller 206 towards well enclosure 102a, and counterweight 106 and well Spacing very little between road wall 102a does not have maintenance personal to carrying out operation, institute between counterweight 106 and well enclosure 102a To be not provided with safety screen to side of the roller 206 towards well enclosure 102a.

It is well known that the car and counterweight of elevator are moved up and down in hoistway.In order to avoid the two is moved down upper It is mutually collided when dynamic, needs that there is corresponding spacing between the floor projection of the two.

As shown in Figures 3 and 4, above divide baffle 222 outwardly projecting in the floor projection of its floor projection from above-mentioned holder Lateral ends have bending part 222a, the floor projection of bending part 222a close to the floor projection of above-mentioned holder.It ties below Fig. 3 and Fig. 4 is closed to be specifically described with regard to this partial content.As described above, Fig. 4 is vertical view, so it indicates that elevator 100 is each The floor projection of a part.As shown in figure 4, above-mentioned holder (including the 1st holder 212, the 2nd holder 214, the 3rd holder the 215, the 3rd Holder 216 and the 4th holder 218) floor projection largest contours mainly by the floor projection of the 1st holder 212, and exceed The floor projection at an angle (angle directed downwardly in Fig. 4) for the 4th holder 218 of the floor projection range of the 1st holder 212 is constituted.

On divide baffle 222 to be made of plank.On divide right side (transverse direction) end of baffle 222 in figure 3 floor projection (ginseng According to Fig. 4) have exceeded above-mentioned holder floor projection largest contours, i.e., " protruded outward from the floor projection of above-mentioned holder ".Such as It is tabular to divide baffle 222 on fruit, on the right side of lateral ends will extend to direction shown in dotted lines in Figure 4, this will make counterweight Spacing between device 106 (above dividing baffle 222) and car 104 becomes smaller, and may influence the safe operation of elevator 100.To understand The upper point baffle 222 of certainly this technical problem, the present embodiment is machined with bending part 222a in right side (transverse direction) end, the bending part The floor projection of 222a is close to the floor projection of above-mentioned holder.

As shown by the arrows in figure 4, the formation of bending part 222a makes right side (transverse direction) end of point baffle 222 by dotted line Shown in position be moved to position shown in solid.Although the floor projection of bending part 222a still has exceeded the water of above-mentioned holder Flat drop shadow spread, but it significantly reduces to 104 direction of car degree outstanding.So as to ensure counterweight (safety Baffle) interval between car, it avoids collision.

Divide baffle 224 on the outwardly projecting right side of floor projection of its floor projection from above-mentioned holder under as shown in figure 3, (transverse direction) end also has bending part 224a, the floor projection of bending part 224a close to the floor projection of above-mentioned holder.Under The floor projection of the bending part 224a of point baffle 224 and the floor projection of the bending part 222a of upper point baffle 222 overlap.This refers to Under divide the floor projection of bending part 224a of baffle 224 and the floor projection of the bending part 222a of upper point baffle 222 that there is essence Upper identical variation tendency, for example, having substantially the same bending angle or radian.Under divide the bending part of baffle 224 The bending part 222a of 224a and upper point baffle 222 have the same effect, that is, divide baffle 224 prominent to 104 direction of car under reducing The degree gone out, so that it is guaranteed that interval of the counterweight (safety screen) between car, avoids collision.

Therefore, although the hoistway of the present embodiment elevator is narrow, to the length side of the rotational plane and counterweight frame upper beam of roller There is scheduled angle theta between, can also safety catch be set in the case where ensuring the interval between counterweight and car Plate prevents the finger etc. of maintenance personal to be involved in roller.

In addition, dividing baffle 222 and lower point of baffle 224 since safety screen 220 is longitudinally divided into, so in installation safety catch When plate 220, it is conveniently adjusted safety screen 220 and the gap between roller 206.Divide baffle in particular, can first install down 224.At this moment, divide the bending part 224a of baffle 224 and to roller due to that can be observed directly down from the top of lower point of baffle 224 Gap between 206, so being easy to bending part 224a and gap adjustment between roller 206 to suitably sized model It encloses.When installing point baffle 222, since the bending part 222a and the bending part 224a of lower point of baffle 224 of upper point baffle 222 have Substantially the same bending angle or radian, as long as being arrived so the outer surface of the bending part 222a of upper point baffle 222 is adjusted With the outer surface of the bending part 224a of lower point of baffle 224 close to same surface, so that it may to ensure its inner surface also close under The inner surface for dividing the bending part 224a of baffle 224, to which the gap for making bending part 222a and between roller 206 also reaches suitable Size range.In addition, when maintenance elevator, as long as unloading point baffle 222, it will be able to divide the bending part of baffle 224 under seeing 224a and the gap between roller 206, convenient for checking whether gap is suitable.

Since safety screen 220 divides for upper point baffle 222 and lower point of baffle 224, check anti-detachment plate 232 with to roller Spacing between 206, and when checking anti-detachment plate 234 and spacing between roller 206, as long as unloading point baffle 222 It can confirm inspection, improve the efficiency of maintenance elevator.In addition, when replacing hoist ropes, divide baffle 224 as long as unloading down It replaces, improves operating efficiency.Moreover, when dividing baffle 224 under installation, as long as by the outer of the bending part 224a of lower point of baffle 224 Surface modulation is to the outer surface of the bending part 222a with upper point baffle 222 close to same surface, so that it may so that bending part 224a Also reach suitably sized range with the gap between roller 206, is easily installed.

The present invention is not limited to the above embodiments, further include various variations.For example, in above-mentioned implementation In order to make it easy to understand, the present invention is described in detail, but it is not to limit the invention to that there are all above-mentioned groups in example At in the embodiment of part.In addition, the part of the composition of each embodiment, can be carried out adding with other technical characteristics, replaced, Or it is deleted.For example, in the above-described embodiment, only safety screen is provided in the side to roller, according to refitting Safety screen can be arranged in the both sides to roller in the settings such as position set condition.In the above-described embodiments, only in safety screen A lateral ends be provided with bending part, if another lateral ends of safety screen are also from the floor projection of the holder It protrudes outward, bending part can be respectively set in two lateral ends of safety screen.In the above-described embodiments, safety screen point For two points of baffles, i.e., on divide baffle and lower point of baffle, but this is not the restriction for dividing number to safety screen, and safety screen can be with It is divided into as needed and more divides baffle.

Claims

1. a kind of elevator comprising：Lift the car in hoistway；The counterweight being connected with the car by hoist ropes； Pass through the traction machine of car and the counterweight described in the traction wire saws, it is characterised in that：

The counterweight has：

To roller, the upper beam in counterweight frame is arranged by holder, to wind the hoist ropes, rotational plane with it is described on There is scheduled angle between the length direction of beam；

Safety screen is made of longitudinal separable a plurality of points of baffles, is fixed on the holder, described right to block The side of roller each divides baffle to have folding in the outwardly projecting lateral ends of floor projection of its floor projection from the holder The floor projection of turn of bilge, the bending part is close to the floor projection of the holder.

2. elevator according to claim 1, it is characterised in that：

The safety screen divides baffle to constitute described in longitudinal separable two, and the bending part of baffle is divided described in this two Floor projection overlap.