阅读说明：本技术 1∶1电梯改造为2∶1电梯用的反绳轮安装结构及改造方法 (Diversion sheave mounting structure for transforming 1: 1 elevator into 2: 1 elevator and transformation method ) 是由 谭晓亨 黄敏冬 甘强保 于 2021-07-30 设计创作，主要内容包括：本发明公开了1：1电梯改造为2：1电梯用的反绳轮安装结构及改造方法,包括上横梁反绳轮组件和转动连接机构,所述上横梁反绳轮组件通过转动连接机构连接在电梯轿厢的上横梁上；所述转动连接机构包括连接螺杆、推力轴承、螺母；所述上横梁上设有与所述连接螺杆匹配的上横梁安装孔,所述连接螺杆的头部固定在上横梁反绳轮组件上,连接螺杆的尾部穿过上横梁安装孔依次连接所述轴承、螺母,连接螺杆能与上横梁反绳轮组件一同自由旋转角度,采用该反绳轮安装结构改造电梯。本发明优点有：不用考虑旧梯轿架中心与对重中心的相对位置降低现场测量难度,提高设计的效率及实现标准化设计,减小因绳偏角增大导致的额外钢丝绳使用寿命损失,减小电梯振动。(The invention discloses a method for preparing a compound: 1 the elevator is reformed into 2: 1 a diversion sheave mounting structure for an elevator and a transformation method thereof, comprising an upper beam diversion sheave assembly and a rotary connecting mechanism, wherein the upper beam diversion sheave assembly is connected on an upper beam of an elevator car through the rotary connecting mechanism; the rotary connecting mechanism comprises a connecting screw rod, a thrust bearing and a nut; the elevator is characterized in that an upper cross beam mounting hole matched with the connecting screw rod is formed in the upper cross beam, the head of the connecting screw rod is fixed on the upper cross beam diversion sheave assembly, the tail of the connecting screw rod penetrates through the upper cross beam mounting hole to be sequentially connected with the bearing and the nut, the connecting screw rod and the upper cross beam diversion sheave assembly can rotate freely at the same angle, and the elevator is transformed by adopting the diversion sheave mounting structure. The invention has the advantages that: the relative position of the old elevator car frame center and the counterweight center is not considered, the field measurement difficulty is reduced, the design efficiency is improved, the standardized design is realized, the service life loss of an extra steel wire rope caused by the increase of the rope deflection angle is reduced, and the elevator vibration is reduced.)

1.1: 1 the elevator is reformed into 2: 1 diverting pulley mounting structure that elevator was used, its characterized in that:

the elevator car rope turning device comprises an upper cross beam rope turning wheel assembly and a rotary connecting mechanism, wherein the upper cross beam rope turning wheel assembly is connected to an upper cross beam of an elevator car through the rotary connecting mechanism;

the rotary connecting mechanism comprises a connecting screw rod, a thrust bearing and a nut;

the upper beam is provided with an upper beam mounting hole matched with the connecting screw rod, the head of the connecting screw rod is fixed on the upper beam diversion sheave assembly, the tail of the connecting screw rod penetrates through the upper beam mounting hole to be sequentially connected with the thrust bearing and the nut, and the connecting screw rod and the upper beam diversion sheave assembly can rotate freely at the same angle.

2. The 1: 1 the elevator is reformed into 2: 1 diverting pulley mounting structure that elevator was used, its characterized in that:

the nut is a double nut;

the rotary connecting mechanism comprises a connecting screw rod, shockproof rubber, an upper gasket, a thrust bearing, a lower gasket and double nuts;

the head of the connecting screw rod is fixed on the diversion sheave assembly of the upper cross beam, and the tail of the connecting screw rod penetrates through the mounting hole of the upper cross beam and is sequentially connected with the shockproof rubber, the upper gasket, the thrust bearing, the lower gasket and the double nuts.

3. The 1: 1 the elevator is reformed into 2: 1 diverting pulley mounting structure that elevator was used, its characterized in that:

the thrust bearing comprises an upper ball guide groove, balls and a lower ball guide groove, and the balls are located in a space formed by the upper ball guide groove and the lower ball guide groove.

4. The 1: 1 the elevator is reformed into 2: 1 diverting pulley mounting structure that elevator was used, its characterized in that:

the upper cross beam diversion sheave assembly comprises an upper cross beam diversion sheave and an upper cross beam diversion sheave shell, a first screw rod fixing hole is formed in the bottom surface of the upper cross beam diversion sheave shell, a clamping plate and a base plate are mounted on the inner surface of the bottom surface of the upper cross beam diversion sheave shell from top to bottom, a second screw rod fixing hole is formed in the base plate, a clamping hole matched with the head of the connecting screw rod is formed in the clamping plate, and the head of the connecting screw rod is located in the clamping hole and cannot rotate.

5. The 1: 1 the elevator is reformed into 2: 1 diverting pulley mounting structure that elevator was used, its characterized in that:

the head of the connecting screw rod is polygonal, and the clamping hole is matched with the head of the connecting screw rod.

6. The 1: 1 the elevator is reformed into 2: 1 diverting pulley mounting structure that elevator was used, its characterized in that:

the inner surface of the upper cross beam is fixed with an upper cross beam diversion sheave reinforcing plate corresponding to the region where the upper cross beam diversion sheave assembly is installed, the upper cross beam diversion sheave reinforcing plate is provided with an upper cross beam diversion sheave reinforcing plate installation hole matched with the upper cross beam installation hole, and the connecting screw rod sequentially penetrates through the second screw rod fixing hole, the first screw rod fixing hole, the upper cross beam installation hole and the upper cross beam diversion sheave reinforcing plate installation hole.

7. A steering wheel mounting structure for a steering wheel of a vehicle, which comprises the steering wheel mounting structure of any one of claims 1 to 6: 1 the elevator is reformed into 2: 1 method in an elevator, characterized in that:

the method comprises the following steps:

dismantling 1: 1 hanging a steel wire rope of an old elevator; change main beam, computer lab main machine driving sheave, at 1: 1, a counterweight diverting pulley is added above a counterweight of an old elevator, the counterweight diverting pulley can not rotate, and the counterweight is parallel to the counterweight diverting pulley; a diversion sheave device capable of freely rotating angles is additionally arranged in the center of an upper beam of the lift car, the center of a traction sheave of a main machine of the machine room, the center of a guide sheave and a lift car rope head positioned in the machine room are all connected on the same line, and a vertical plane where the connection line of the center of the traction sheave of the main machine of the machine room, the center of the guide sheave and the lift car rope head is positioned is superposed with or has deviation with a rope outlet point of a guide sheave corresponding to a counterweight diversion sheave and a vertical plane where the connection line of the center of a lift car frame is positioned;

if there is a deviation, the adjustment can be performed as follows: the method comprises the steps of leading a first plumb line from a rope outlet point of a traction wheel corresponding to an upper beam diversion sheave, adjusting the angle of the upper beam diversion sheave in an auxiliary mode, enabling the central plane of the upper beam diversion sheave to coincide with the first plumb line, leading a second plumb line from an area of a machine room where a car rope head is to be installed, adjusting the position of the second plumb line, enabling the central plane of the upper beam diversion sheave to coincide with the second plumb line, determining the installation position of the car rope head according to the position of the machine room where the upper end of the second plumb line is located to install the car rope head, and then carrying out subsequent installation operation.

8. The handle as claimed in claim 7, wherein 1: 1 the elevator is reformed into 2: 1 method in an elevator, characterized in that:

the original opening of the upper beam can be directly used as an upper beam mounting hole if the position is proper, and the upper beam mounting hole is drilled in the center of the upper beam if the position is improper.

9. The handle as claimed in claim 7, wherein 1: 1 the elevator is reformed into 2: 1 method in an elevator, characterized in that:

the counterweight is positioned on the side surface or the back surface of the car frame.

Technical Field

The invention relates to the technical field of elevator transformation. In particular to a technology for transforming a 1: 1 elevator into a 2: 1 elevator.

Background

When the original 1: 1 hanging old ladder is transformed into a 2: 1 hanging ladder, a diversion sheave needs to be added on an upper cross beam, and a machine room main machine beam and the like also need to be replaced. The vertical plane that computer lab host computer driving sheave center and leading wheel center connecting line place should coincide with the rope play point and the vertical plane that sedan-chair frame center connecting line place of counterweight guide pulley, nevertheless owing to keep parts such as sedan-chair frame, reform transform the ladder lofting degree of difficulty high, and old building subsides and warp, reasons such as measuring error before the transformation, the installation location of parts such as messenger's newly-changed host computer roof beam can't accomplish to be as accurate with newly-installed elevator, so when above-mentioned central line does not coincide after the installation, the rope declination will increase, influence the life of rope. On the other hand, because 1: 1 hangs elevator in the old time to heavy the place position diversified and have measuring error etc. and the diversification of entablature rope hole, if every diversion sheave's installation all with to heavily placing carry out the one-to-one, diversion sheave's hole also need with former ladder entablature hole one-to-one, need reform transform the connection structure of current diversion sheave. If reform transform according to the connection structure of current diversion sheave, just require before reforming transform to every job number that requires the transformation carry out detailed measurement, and measure and require the accuracy, this standardized design that just makes the transformation can't go on, increases the design degree of difficulty of reforming transform.

Disclosure of Invention

The invention aims to provide a diversion sheave mounting structure and a transformation method for transforming a 1: 1 elevator into a 2: 1 elevator, which aim to solve the problems that the measurement accuracy requirement is high before transformation, the service life of a rope is influenced by the increase of a rope deflection angle during transformation and the like.

In order to achieve the purpose, the invention adopts the following technical scheme:

the 1: 1 elevator is transformed into a diversion sheave mounting structure for a 2: 1 elevator, and the diversion sheave mounting structure comprises an upper cross beam diversion sheave assembly and a rotary connecting mechanism, wherein the upper cross beam diversion sheave assembly is connected to an upper cross beam of an elevator car through the rotary connecting mechanism;

the rotary connecting mechanism comprises a connecting screw rod, a thrust bearing and a nut;

the upper beam is provided with an upper beam mounting hole matched with the connecting screw rod, the head of the connecting screw rod is fixed on the upper beam diversion sheave assembly, the tail of the connecting screw rod penetrates through the upper beam mounting hole to be sequentially connected with the thrust bearing and the nut, and the connecting screw rod and the upper beam diversion sheave assembly can rotate freely at the same angle.

Further, the air conditioner is provided with a fan,

the nut is a double nut;

the rotary connecting mechanism comprises a connecting screw rod, shockproof rubber, an upper gasket, a thrust bearing, a lower gasket and double nuts;

the head of the connecting screw rod is fixed on the diversion sheave assembly of the upper cross beam, and the tail of the connecting screw rod penetrates through the mounting hole of the upper cross beam and is sequentially connected with the shockproof rubber, the upper gasket, the thrust bearing, the lower gasket and the double nuts.

Further, the air conditioner is provided with a fan,

the thrust bearing comprises an upper ball guide groove, balls and a lower ball guide groove, and the balls are located in a space formed by the upper ball guide groove and the lower ball guide groove.

Further, the air conditioner is provided with a fan,

the upper cross beam diversion sheave assembly comprises an upper cross beam diversion sheave and an upper cross beam diversion sheave shell, a first screw rod fixing hole is formed in the bottom surface of the upper cross beam diversion sheave shell, a clamping plate and a base plate are mounted on the inner surface of the bottom surface of the upper cross beam diversion sheave shell from top to bottom, a second screw rod fixing hole is formed in the base plate, a clamping hole matched with the head of the connecting screw rod is formed in the clamping plate, and the head of the connecting screw rod is located in the clamping hole and cannot rotate.

Further, the air conditioner is provided with a fan,

the head of the connecting screw rod is polygonal, and the clamping hole is matched with the head of the connecting screw rod.

Further, the air conditioner is provided with a fan,

the inner surface of the upper cross beam is fixed with an upper cross beam diversion sheave reinforcing plate corresponding to the region where the upper cross beam diversion sheave assembly is installed, the upper cross beam diversion sheave reinforcing plate is provided with an upper cross beam diversion sheave reinforcing plate installation hole matched with the upper cross beam installation hole, and the connecting screw rod sequentially penetrates through the second screw rod fixing hole, the first screw rod fixing hole, the upper cross beam installation hole and the upper cross beam diversion sheave reinforcing plate installation hole.

A method for transforming a 1: 1 elevator into a 2: 1 elevator by adopting the diversion sheave mounting structure comprises the following steps:

dismantling a steel wire rope hanging an old ladder at a ratio of 1: 1; the main machine beam and the main machine traction sheave of the machine room are replaced, a counterweight diversion sheave is added above a counterweight suspending the old elevator at the ratio of 1: 1, the counterweight diversion sheave cannot rotate, and the counterweight is parallel to the counterweight diversion sheave; a diversion sheave device capable of freely rotating angles is additionally arranged in the center of an upper beam of the lift car, the center of a traction sheave of a main machine of the machine room, the center of a guide sheave and a lift car rope head positioned in the machine room are all connected on the same line, and a vertical plane where the connection line of the center of the traction sheave of the main machine of the machine room, the center of the guide sheave and the lift car rope head is positioned is superposed with or has deviation with a rope outlet point of a guide sheave corresponding to a counterweight diversion sheave and a vertical plane where the connection line of the center of a lift car frame is positioned;

if there is a deviation, the adjustment can be performed as follows: the method comprises the steps of leading a first plumb line from a rope outlet point of a traction wheel corresponding to an upper beam diversion sheave, adjusting the angle of the upper beam diversion sheave in an auxiliary mode, enabling the central plane of the upper beam diversion sheave to coincide with the first plumb line, leading a second plumb line from an area of a machine room where a car rope head is to be installed, adjusting the position of the second plumb line, enabling the central plane of the upper beam diversion sheave to coincide with the second plumb line, determining the installation position of the car rope head according to the position of the machine room where the upper end of the second plumb line is located to install the car rope head, and then carrying out subsequent installation operation.

Preferably, the first and second electrodes are formed of a metal,

the original opening of the upper beam can be directly used as an upper beam mounting hole if the position is proper, and the upper beam mounting hole is drilled in the center of the upper beam if the position is improper.

Preferably, the first and second electrodes are formed of a metal,

the counterweight is positioned on the side surface or the back surface of the car frame.

The advantages of the invention include:

because entablature diverting pulley subassembly and entablature are through single bolted connection, and entablature diverting pulley subassembly can self angle of free rotation adjustment, need not consider during the design to heavily placing position and the rotation angle of entablature diverting pulley subassembly, need not consider old terraced sedan-chair frame center and the relative position to heavily the center.

The trompil is various on the old terraced entablature, and entablature diversion sheave subassembly and entablature are through single bolted connection, need not consider the trompil quantity on the old entablature, and if improper drilling is also convenient in the centre of the centre, the installation that can not appear causing because of factors such as measuring error is not gone up, or the installation back angle degree is incorrect makes race and the too much condition of the lower rope position deviation of reality, reduces the field measurement degree of difficulty, improves the efficiency of design and realizes standardized design.

When the vertical plane where the center of the traction wheel of the machine room main machine, the center of the guide wheel and the connecting line of the rope heads of the lift car are located does not coincide with the vertical plane where the center of the counter-projecting rope point and the connecting line of the center of the lift car frame are located, due to the fact that the rope deflection angle exists, the upper cross beam rope deflection wheel has rotating force, the optimal angle can be automatically adjusted according to the position of the rope point under the steel wire rope, when the force is balanced, the upper cross beam rope deflection wheel rotates to the optimal angle, and therefore the loss of the service life of the extra steel wire rope caused by the increase of the rope deflection angle is reduced.

In the up-and-down running process of the elevator, the rope deflection angle between the steel wire rope and the upper cross beam diversion sheave can be changed, so that periodic shaking can exist along with the up-and-down running of the elevator, the shaking can be reduced by slightly rotating the upper cross beam diversion sheave which can freely rotate through installation, and the vibration of the elevator is reduced to a certain degree.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention:

fig. 1 is a side view of an upper cross beam diversion sheave and an upper cross beam mounting shaft which can rotate freely according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of the installation of the diversion sheave and the upper beam of the upper beam capable of freely rotating angles according to the embodiment of the present invention;

FIG. 3 is an enlarged view of the structure of part A;

fig. 4 is a schematic axial side structure diagram of an upper cross beam diverting pulley capable of freely rotating angles according to an embodiment of the invention;

fig. 5 is a schematic cross-sectional structure view of an upper cross beam diverting pulley capable of freely rotating angle according to an embodiment of the present invention;

FIG. 6 is an enlarged view of the structure of the part B;

fig. 7 is a schematic diagram of a counterweight rear reconstruction modification arrangement and adjustment of the rotation angle of the upper beam diversion sheave according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a counterweight side-repositioning modification arrangement and non-rotation angle adjustment of the upper beam deflector sheave according to an embodiment of the invention.

Fig. 9 is a schematic view of a counterweight side-repositioning transformation arrangement and adjustment of the rotation angle of the upper cross beam in the reverse rope rotation according to the embodiment of the invention.

The main machine traction sheave comprises an upper cross beam diversion sheave assembly 100, an upper cross beam diversion sheave 110, an upper cross beam diversion sheave shell 111, shockproof rubber 120, an upper gasket 130, an upper ball guide groove 140, balls 150, a lower ball guide groove 160, a lower gasket 170, double nuts 180, a connecting screw rod 190, a head 191 of the connecting screw rod, an upper cross beam 200, an upper cross beam diversion sheave reinforcing plate 210, a main machine traction sheave 300, a guide wheel 400, a counterweight diversion sheave 500, a clamping plate 600, a backing plate 700 and a counterweight 800.

Detailed Description

The present invention will be described in detail with reference to the drawings and specific embodiments, which are illustrative of the present invention and are not to be construed as limiting the present invention.

1-6, a 1: 1 elevator is transformed into a diversion sheave mounting structure for a 2: 1 elevator, comprising an upper beam diversion sheave assembly 100 and a rotary connecting mechanism, wherein the upper beam diversion sheave assembly 100 is connected to an upper beam 200 of an elevator car through the rotary connecting mechanism;

the rotary connecting mechanism comprises a connecting screw rod 190, a thrust bearing and a nut;

the upper beam 200 is provided with an upper beam mounting hole matched with the connecting screw 190, the head 191 of the connecting screw is fixed on the upper beam diverting pulley assembly 100, the tail 192 of the connecting screw passes through the upper beam mounting hole to be sequentially connected with the thrust bearing and the nut, and the connecting screw 190 and the upper beam diverting pulley assembly 100 can freely rotate together.

The nut is a double nut 180;

the rotary connecting mechanism comprises a connecting screw rod 190, shockproof rubber 120, an upper gasket 130, a thrust bearing, a lower gasket 170 and double nuts 180;

the head 191 of the connecting screw is fixed on the upper beam diverting pulley assembly 100, and the tail 192 of the connecting screw passes through the upper beam mounting hole and then is sequentially connected with the shockproof rubber 120, the upper gasket 130, the thrust bearing, the lower gasket 170 and the double nuts 180.

The thrust bearing includes an upper ball guide groove 140, balls 150, and a lower ball guide groove 160, and the balls 150 are located in a space defined by the upper ball guide groove 140 and the lower ball guide groove 160.

Entablature diverting sheave subassembly 100 includes entablature diverting sheave 110 and entablature diverting sheave shell 111, entablature diverting sheave shell 111 bottom surface is equipped with first screw rod fixed orifices, cardboard 600, backing plate 700 are installed to entablature diverting sheave shell 111 bottom surface internal surface from the top down, and the mounting means can adopt modes such as bolt fastening, be equipped with second screw rod fixed orifices on the backing plate 700, be equipped with on the cardboard 600 with the card hole that connecting screw's head 191 matches, connecting screw's head 191 is located the card hole and can not rotate.

The head 191 of the connecting screw rod is polygonal, and the clamping hole is matched with the head 191 of the connecting screw rod.

An upper beam diversion sheave reinforcing plate 210 is fixed on the inner surface of the upper beam 200 in a region corresponding to the installation of the upper beam diversion sheave assembly, and an upper beam diversion sheave reinforcing plate installation hole matched with the upper beam installation hole is formed in the upper beam diversion sheave reinforcing plate 210. The connecting screw 190 sequentially passes through the second screw fixing hole, the first screw fixing hole, the upper cross beam mounting hole and the upper cross beam diversion sheave reinforcing plate mounting hole.

When the deviation exists between the rope outlet point of the main machine traction sheave 300 and the rope outlet point of the originally set traction sheave, the balls 150 can roll around the space formed by the upper ball guide groove 140 and the lower ball guide groove 160, the connecting screw 190, the lower ball guide groove 160, the lower gasket 170, the double nuts 180 and the upper beam return sheave assembly 100 rotate, and the angle is automatically adjusted.

A method for transforming a 1: 1 elevator into a 2: 1 elevator by adopting the diversion sheave mounting structure,

the method comprises the following steps:

dismantling a steel wire rope hanging an old ladder at a ratio of 1: 1; the main machine beam and the main machine traction sheave 300 of the machine room are replaced, a counterweight diversion sheave 500 is added above a counterweight 800 for hanging the old elevator at the ratio of 1: 1, the counterweight diversion sheave 500 can not rotate, and the counterweight 800 is parallel to the counterweight diversion sheave 500; the diversion sheave device capable of freely rotating angles is additionally arranged in the center of the upper beam 200 of the car, the center of the traction sheave 300 of the main machine of the machine room, the center of the guide sheave 400 and the car rope head positioned in the machine room are connected on the same line, and the vertical plane where the connection line of the center of the traction sheave 300 of the main machine of the machine room, the center of the guide sheave 400 and the car rope head is positioned is superposed with or has deviation with the rope outlet point of the corresponding guide sheave of the counterweight diversion sheave and the vertical plane where the connection line of the center of the car frame is positioned.

If there is a deviation, the adjustment can be performed as follows: the method comprises the steps of guiding a first plumb line from a rope outlet point of a traction wheel corresponding to an upper cross beam diversion sheave, adjusting the angle of the upper cross beam diversion sheave in an auxiliary mode, enabling the center plane of the upper cross beam diversion sheave 110 to coincide with the first plumb line, guiding a second plumb line from an area where a car rope head is to be installed in a machine room, adjusting the position of the second plumb line, enabling the center plane of the upper cross beam diversion sheave 110 to coincide with the second plumb line, determining the installation position of the car rope head according to the position of the upper end of the second plumb line in the machine room to install the car rope head, and then performing subsequent installation operation.

The original open pore of the upper cross beam 200 can be directly used as an upper cross beam mounting hole if the position is proper, and the upper cross beam mounting hole is drilled in the center of the upper cross beam 200 if the position is improper.

The counterweight 800 is located on the side or rear of the car frame.

As shown in fig. 7, if the old elevator counterweight 800 is placed at the rear side of the car frame, the counterweight sheave 500 is installed on site or the whole counterweight frame is replaced, the vertical plane where the connecting line of the center guide wheel 400 of the main machine traction sheave 300 and the car rope end is located is theoretically designed to coincide with the vertical plane where the connecting line of the rope outlet point of the guide wheel corresponding to the counterweight sheave and the car frame center point is located, but because the old elevator building is difficult to settle and deform and set out, the actual installation cannot be very accurate, and the installation has a large error for the reconstruction elevator. When the deviation exists between the rope outlet point of the traction sheave 300 and the rope outlet point of the traction sheave 300 which is originally set, the upper cross beam diversion sheave 110 can automatically rotate to enable the rope outlet point of the upper cross beam diversion sheave, the rope head of the lift car and the rope outlet point of the traction sheave to reach the optimal deflection angle, so that the abrasion increase of the steel wire rope caused by the deflection angle of the rope is reduced, and the service life of the hoisting steel wire rope is prolonged.

If old ladder is to heavy 800 when placing in the sedan-chair frame side, heavily diverting pulley 500 installs additional or whole heavy frame change at the scene, the vertical plane theory design that the line is located at host computer traction sheave 300 center, leading wheel 400 center, car fag end is for the vertical plane coincidence that corresponds the play rope point of leading wheel and sedan-chair frame central point line place with heavily diverting pulley, nevertheless because old ladder building subsides to warp and the difficulty of laying out, the installation of reality can't accomplish very accurately, to reforming transform the ladder, the installation should have great error. As shown in fig. 8, when the rope outlet point of the traction sheave deviates from the originally set rope outlet point of the traction sheave, the upper cross beam diverting pulley 110 automatically rotates by an angle, and after the rotation, as shown in fig. 9, the rope outlet point of the upper cross beam diverting pulley 110 reaches an optimal deflection angle with the car rope head and the rope outlet point of the traction sheave, so that the abrasion increase of the steel wire rope caused by the deflection angle of the rope is reduced, and the service life of the hoisting steel wire rope is prolonged.

As shown in fig. 7-9, the design and installation of the upper cross beam diverting pulley assembly 100 is unchanged no matter how the counterweight 800 is placed, which greatly improves the efficiency of field measurement and design, and also reduces the problems caused by improper matching between new and old counterweight.

In addition, when the elevator moves from top to bottom, the rope can have horizontal pendulum power, so entablature diverting pulley subassembly 100 receives the transverse force change of rope and has a small amount of round trip to rotate, plays the effect of unloading, until balanced, simultaneously because of the host computer transmits wire rope's shake for entablature diverting pulley subassembly 100 receives the transverse force change of rope and has a small amount of round trip to rotate, thereby make the transverse vibration of rope basically can not transmit the car on, improve the travelling comfort of taking.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.