CN105366507B - The method of modifying and machine-roomless lift of machine-roomless lift - Google Patents
The method of modifying and machine-roomless lift of machine-roomless lift Download PDFInfo
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- CN105366507B CN105366507B CN201510450172.3A CN201510450172A CN105366507B CN 105366507 B CN105366507 B CN 105366507B CN 201510450172 A CN201510450172 A CN 201510450172A CN 105366507 B CN105366507 B CN 105366507B
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Abstract
Description
技术领域technical field
本发明涉及将曳引机设置于井道内的下部的既设的无机房电梯改装成曳引机设置在井道内的上部的无机房电梯的电梯改装方法。The invention relates to an elevator refitting method for converting an existing machine-roomless elevator with a traction machine arranged at the lower part of the hoistway into an elevator with the traction machine arranged at the upper part of the hoistway.
背景技术Background technique
在以往的电梯的改装方法中，在既设的轿厢的上部安装轿厢吊轮，并且在既设的对重的上部安装对重吊轮。并且，从设置于机房的设备基座撤除曳引机。然后，将新的曳引机和尾架设置于设备基座。然后，将主绳索绕挂于曳引机、轿厢吊轮以及对重吊轮，将主绳索的两端与尾架连接(例如，参照专利文献1)。In the conventional method of retrofitting an elevator, the car hanging sheave is installed on the top of the existing car, and the counterweight hanging sheave is installed on the top of the existing counterweight. And, remove the traction machine from the equipment base installed in the machine room. Then, set the new traction machine and tailstock on the equipment base. Then, the main rope is wound around the hoisting machine, the car suspension sheave, and the counterweight suspension sheave, and both ends of the main rope are connected to the tailstock (for example, refer to Patent Document 1).
专利文献1：日本特开2001－220078号公报Patent Document 1: Japanese Patent Laid-Open No. 2001-220078
发明内容Contents of the invention
在上述这样的具有机房类型的电梯的改装中，在既设的设备基座处设置新的曳引机，因而曳引机的安装尺寸及外形尺寸比较容易变更。对此，在以往的无机房电梯中，井道内的尺寸上的限制比较严格，因而将安装尺寸及外形尺寸与改装前的曳引机相同的曳引机设置在与改装前相同的位置处。并且，在设置安装尺寸及外形尺寸与改装前不同的曳引机的情况下，采取将井道内的全部设备撤除而重新设置的施工方法，改装工期相当长。In the refitting of the above-mentioned elevator with a machine room type, a new traction machine is installed at the existing equipment base, so the installation size and external dimension of the traction machine are relatively easy to change. On the other hand, in conventional machine-room-less elevators, there are strict restrictions on the size of the hoistway, so a traction machine having the same installation dimensions and external dimensions as the traction machine before the retrofit is installed at the same position as before the retrofit. In addition, in the case of installing a traction machine with different installation dimensions and external dimensions than before refitting, the construction method of removing all the equipment in the hoistway and reinstalling is adopted, and the refitting period is quite long.
本发明是为了解决如上所述的课题而完成的，其目的在于，提供一种能够沿用诸多设备来设置安装尺寸及外形尺寸与改装前不同的曳引机的无机房电梯的改装方法。The present invention was made to solve the above-mentioned problems, and an object of the present invention is to provide a method of retrofitting a machine-room-less elevator that can install a traction machine having a different installation size and external dimension from that before retrofitting, using many devices.
在本发明的无机房电梯的改装方法中，所述无机房电梯具有：轿厢；对重；悬挂体，其吊挂轿厢和对重；既设的曳引机，其设置在井道内的下部，借助于悬挂体使轿厢和对重升降；上部支承体，其设置在井道内的上部；以及上部反绳轮，其设置于上部支承体，绕挂有悬挂体，其中，该无机房电梯的改装方法包含如下工序：从上部支承体卸下上部反绳轮；以及在上部支承体设置新的曳引机。In the method for refitting an elevator without a machine room of the present invention, the elevator without a machine room has: a car; a counterweight; a suspension body, which hangs the car and the counterweight; an existing traction machine, which is arranged in the hoistway The lower part lifts the car and the counterweight by means of the suspension body; the upper support body is arranged on the upper part of the hoistway; The method for refitting an elevator includes the steps of: removing the upper anti-sheave from the upper supporting body; and installing a new traction machine on the upper supporting body.
本发明还提供一种无机房电梯，其中，该无机房电梯具有：轿厢；对重；悬挂体，其吊挂轿厢和对重；上部曳引机，其设置在井道内的上部，借助于悬挂体使轿厢和对重升降；以及下部曳引机，其设置在井道内的下部，下部曳引机不产生驱动力，被用作下部反绳轮。The present invention also provides a machine-room-less elevator, wherein the machine-room-less elevator has: a car; a counterweight; a suspension body, which suspends the car and the counterweight; The car and the counterweight are raised and lowered by the suspension body; and the lower traction machine, which is installed in the lower part of the hoistway, does not generate driving force and is used as the lower anti-sheave.
在本发明的无机房电梯的改装方法中，由于在井道内上部的配置有反绳轮的位置处设置新的曳引机，因此能够沿用诸多设备来设置安装尺寸及外形尺寸与改装前不同的曳引机。In the refitting method of the machine-room-less elevator of the present invention, since a new traction machine is installed at the upper part of the hoistway at the position where the anti-sheave is arranged, it is possible to use a lot of equipment to set the elevator whose installation size and external dimension are different from those before the refitting. traction machine.
附图说明Description of drawings
图1是示出本发明的实施方式1的改装前的无机房电梯的概略的俯视图。Fig. 1 is a schematic plan view showing a machine-room-less elevator before modification according to Embodiment 1 of the present invention.
图2是示出图1的无机房电梯的概要的主视图。Fig. 2 is a front view showing an outline of the machine-room-less elevator of Fig. 1 .
图3是示出图2的轿厢反绳轮及对重反绳轮的支承构造的概要的立体图。Fig. 3 is a perspective view schematically showing a support structure of the car return sheave and the counterweight return sheave of Fig. 2 .
图4是示出图1的无机房电梯的改装后的状态的概要的俯视图。Fig. 4 is a plan view schematically showing a modified state of the machine-room-less elevator of Fig. 1 .
图5是示出图4的无机房电梯的概要的主视图。Fig. 5 is a front view showing an outline of the machine-room-less elevator of Fig. 4 .
图6是示出图5的曳引机的支承构造的概要的立体图。Fig. 6 is a perspective view showing an outline of a support structure of the hoisting machine shown in Fig. 5 .
图7是示出图5的曳引机的支承构造的变形例的立体图。Fig. 7 is a perspective view showing a modified example of the support structure of the hoisting machine shown in Fig. 5 .
标号说明Label description
1：轿厢；2：对重；3：悬挂体；4：井道；5：既设的曳引机(下部曳引机)；7：驱动绳轮(下部反绳轮)；13：上部支承体；15：对重反绳轮(上部反绳轮)；17a：第1反绳轮梁；17b：第2反绳轮梁；21：新的曳引机(上部曳引机)；24a、24b：曳引机台。1: car; 2: counterweight; 3: suspension body; 4: hoistway; 5: established traction machine (lower traction machine); 7: driving sheave (lower reverse sheave); 13: upper support body; 15: Counterweight reversing sheave (upper reversing sheave); 17a: 1st reversing sheave beam; 17b: 2nd reversing sheave beam; 21: New traction machine (upper traction machine); 24a, 24b: traction machine platform.
具体实施方式Detailed ways
以下，参照附图说明用于实施本发明的方式。Hereinafter, modes for implementing the present invention will be described with reference to the drawings.
实施方式1.Implementation mode 1.
图1是示出本发明的实施方式1的改装前的无机房电梯的概要的俯视图，图2是示出图1的无机房电梯的概要的主视图。在图中，轿厢1和对重2被悬挂体3(在图1中省略)吊挂在井道4内。悬挂体3采用多条绳索或者多条带。1 is a plan view showing the outline of a machine-room-less elevator before modification according to Embodiment 1 of the present invention, and FIG. 2 is a front view showing the outline of the machine-room-less elevator in FIG. 1 . In the figure, the car 1 and the counterweight 2 are suspended in the hoistway 4 by the suspension body 3 (omitted in FIG. 1 ). The suspension body 3 adopts a plurality of ropes or a plurality of strips.
对重2以从层站观察时，在位于与轿厢1相同高度时与轿厢1的背面相对的方式，配置在轿厢1的后方。并且，对重2配置为从正上方观察相对于轿厢1的宽度方向(图1的左右方向)上的中心靠向一侧(图1的右侧)。The counterweight 2 is disposed behind the car 1 so as to face the rear of the car 1 when positioned at the same height as the car 1 as viewed from the hall. In addition, the counterweight 2 is disposed on one side (right side in FIG. 1 ) with respect to the center of the car 1 in the width direction (left-right direction in FIG. 1 ) as viewed from directly above.
既设的曳引机即曳引机5设置在井道4内的下部(底坑)。曳引机5借助于悬挂体3使轿厢1和对重2升降。并且，曳引机5具有曳引机主体6和驱动绳轮7。曳引机主体6具有使驱动绳轮7旋转的电机和对驱动绳轮7的旋转进行制动的制动器。悬挂体3绕挂于驱动绳轮7。The traction machine 5 which is an existing traction machine is installed in the lower part (pit) inside the hoistway 4 . The traction machine 5 lifts the car 1 and the counterweight 2 by means of the suspension body 3 . Furthermore, the hoisting machine 5 has a hoisting machine main body 6 and a drive sheave 7 . The hoisting machine main body 6 has a motor that rotates the drive sheave 7 and a brake that brakes the rotation of the drive sheave 7 . The suspension body 3 is hung on the driving sheave 7 .
此外，作为曳引机5，采用轴向尺寸大于与轴向垂直的方向上的尺寸的体长型曳引机。此外，曳引机5配置为从正上方观察时其轴线相对于轿厢1的宽度方向上的中心线倾斜。In addition, as the traction machine 5 , a body length type traction machine whose axial dimension is larger than the dimension in the direction perpendicular to the axial direction is used. In addition, the hoisting machine 5 is arranged such that its axis line is inclined with respect to the center line in the width direction of the car 1 when viewed from directly above.
曳引机5以从正上方观察时大部分与轿厢1重叠的方式，配置在与轿厢1后部的对重2所靠近的一侧相反一侧的角部的正下方。但是，驱动绳轮7的悬挂体3的引出部分从正上方观察时不与轿厢1重叠。The hoisting machine 5 is arranged directly below a corner opposite to the side where the counterweight 2 at the rear of the car 1 approaches so that most of it overlaps the car 1 when viewed from directly above. However, the lead-out portion of the suspension body 3 of the drive sheave 7 does not overlap the car 1 when viewed from directly above.
在井道4内设置有引导轿厢1的升降的第1和第2轿厢导轨8a、8b、以及引导对重2的升降的第1和第2对重导轨9a、9b。轿厢导轨8a、8b在轿厢1的前后方向(图1的上下方向)上的中间部配置在轿厢1的两侧。In the hoistway 4 are provided first and second car guide rails 8 a and 8 b for guiding the raising and lowering of the car 1 , and first and second counterweight guide rails 9 a and 9 b for guiding the raising and lowering of the counterweight 2 . The car guide rails 8a, 8b are arranged on both sides of the car 1 at the middle portion in the front-rear direction of the car 1 (the up-down direction in FIG. 1 ).
在轿厢1的下部设置有第1和第2轿厢吊轮11a、11b。在对重2的上部设置有对重吊轮12。轿厢吊轮11a、11b和对重吊轮12以它们的旋转轴呈水平且与轿厢1的宽度方向垂直的方式配置。The lower part of the car 1 is provided with first and second car suspending sheaves 11a, 11b. A counterweight suspension wheel 12 is provided on the top of the counterweight 2 . The car suspending sheaves 11a and 11b and the counterweight suspending sheave 12 are arranged such that their rotation axes are horizontal and perpendicular to the width direction of the car 1 .
在井道4内的上部(顶部)设置有上部支承体13(在图1中省略)。上部支承体13被轿厢导轨8a、8b和对重导轨9a、9b支承。在上部支承体13处支承有作为上部反绳轮的轿厢反绳轮14和对重反绳轮15。An upper support body 13 (omitted in FIG. 1 ) is provided on an upper portion (ceiling) in the hoistway 4 . The upper support body 13 is supported by the car guide rails 8a, 8b and the counterweight guide rails 9a, 9b. A car return sheave 14 and a counterweight return sheave 15 as an upper return sheave are supported at the upper supporting body 13 .
轿厢反绳轮14配置为从正上方观察时位于驱动绳轮7和第2轿厢吊轮11b之间。并且，轿厢反绳轮14以其旋转轴呈水平且与轿厢1的宽度方向平行的方式配置。The car return sheave 14 is disposed between the drive sheave 7 and the second car suspension sheave 11b when viewed from directly above. In addition, the car return sheave 14 is arranged such that its rotation axis is horizontal and parallel to the width direction of the car 1 .
对重反绳轮15配置为从正上方观察时位于驱动绳轮7与对重吊轮12之间。并且，对重反绳轮15以其旋转轴呈水平且与轿厢1的宽度方向垂直的方式配置。The counterweight reversing sheave 15 is disposed between the driving sheave 7 and the counterweight suspension sheave 12 when viewed from directly above. In addition, the counterweight reversing sheave 15 is arranged such that its rotation axis is horizontal and perpendicular to the width direction of the car 1 .
在上部支承体13的轿厢导轨8a附近设置有轿厢侧绳头组合(未图示)。悬挂体3的第1端部与轿厢侧绳头组合连接。在上部支承体13的对重反绳轮15与对重导轨9a之间的部分设置有对重侧绳头组合16。悬挂体3的第2端部与对重侧绳头组合16连接。A car-side rope end assembly (not shown) is provided near the car guide rail 8a of the upper support body 13 . The first end of the suspension body 3 is combined and connected with the car side rope end. The part between the counterweight anti-sheave 15 and the counterweight guide rail 9a of the upper supporting body 13 is provided with a counterweight side rope end assembly 16 . The second end portion of the suspension body 3 is connected to the rope end assembly 16 on the counterweight side.
悬挂体3从第1端部侧起依次绕挂于第1轿厢吊轮11a、第2轿厢吊轮11b、轿厢反绳轮14、驱动绳轮7、对重反绳轮15以及对重吊轮12。即，图1和图2的电梯是绕绳比为2：1方式的电梯。The suspension body 3 is wound around the first car hanging sheave 11a, the second car hanging sheave 11b, the car reversing sheave 14, the driving sheave 7, the counterweight reversing sheave 15, and the counterweight reversing sheave 15 in order from the first end side. Heavy lifting wheel 12. That is, the elevators in Figs. 1 and 2 are elevators with a 2:1 roping ratio.
图3是示出图2的轿厢反绳轮14和对重反绳轮15的支承构造的概要的立体图。轿厢反绳轮14在轿厢导轨8b的附近配置在上部支承体13的下部。上部支承体13具有相互隔开间隔地配置的第1和第2反绳轮梁17a、17b。反绳轮梁17a、17b被配置成呈水平且与轿厢1的宽度方向平行。对重反绳轮15配置在反绳轮梁17a、17b之间。Fig. 3 is a perspective view showing an outline of a support structure of the car return sheave 14 and the counterweight return sheave 15 of Fig. 2 . The car return sheave 14 is disposed on the lower portion of the upper support body 13 in the vicinity of the car guide rail 8b. The upper support body 13 has the 1st and 2nd anti-sheave beams 17a, 17b arrange|positioned at intervals from each other. The reverse sheave beams 17a and 17b are arranged horizontally and parallel to the width direction of the car 1 . The counterweight return sheave 15 is disposed between the return sheave beams 17a, 17b.
接着，说明如上所述的既设的无机房电梯的改装方法。图4是示出图1的无机房电梯的改装后的状态的概要的俯视图，图5是示出图4的无机房电梯的概要的主视图。在实施方式1的改装方法中，从上部支承体13卸下对重反绳轮15，在上部支承体13的曾安装对重反绳轮15的位置处设置新的曳引机(上部曳引机)21。Next, a method of remodeling the existing machine-room-less elevator as described above will be described. Fig. 4 is a plan view schematically showing a modified state of the machine-room-less elevator of Fig. 1 , and Fig. 5 is a front view schematically showing the machine-room-less elevator of Fig. 4 . In the modification method of Embodiment 1, the counterweight reversing sheave 15 is unloaded from the upper supporting body 13, and a new traction machine (upper traction sheave 15) is set at the position where the counterweight reversing sheave 15 was once installed on the upper supporting body 13. Machine) 21.
并且，将井道4下部的曳引机(下部曳引机)5的驱动绳轮7用作改装后的电梯的下部反绳轮。此外，从井道4下部的曳引机5卸下线圈部分，消除相对于驱动绳轮7的旋转的磁性阻力。即，在改装后的电梯中，曳引机5不产生驱动力，仅作为下部反绳轮来使用。并且，借助新的曳引机21的驱动力，使轿厢1和对重2升降。And, the drive sheave 7 of the traction machine (lower traction machine) 5 at the lower part of the hoistway 4 is used as the lower return sheave of the remodeled elevator. In addition, the coil part is removed from the traction machine 5 at the lower part of the hoistway 4, and the magnetic resistance against the rotation of the drive sheave 7 is eliminated. That is, in the remodeled elevator, the hoisting machine 5 does not generate driving force and is used only as the lower reeling sheave. Then, the car 1 and the counterweight 2 are raised and lowered by the driving force of the new hoisting machine 21 .
新的曳引机21是轴向尺寸小于与轴向垂直的方向上的尺寸的薄型曳引机。并且，新的曳引机21具有曳引机主体22和驱动绳轮23。曳引机主体22具有使驱动绳轮23旋转的电机、对驱动绳轮23的旋转进行制动的制动器。曳引机21以使驱动绳轮23的旋转轴呈水平状态且与轿厢1的宽度方向垂直的方式进行配置。The new traction machine 21 is a thin traction machine whose axial dimension is smaller than the dimension in the direction perpendicular to the axial direction. Furthermore, the new hoisting machine 21 has a hoisting machine main body 22 and a drive sheave 23 . The hoisting machine main body 22 has a motor that rotates the drive sheave 23 and a brake that brakes the rotation of the drive sheave 23 . The hoisting machine 21 is arranged so that the rotating shaft of the driving sheave 23 is horizontal and perpendicular to the width direction of the car 1 .
将悬挂体3从第1端部侧起依次绕挂于第1轿厢吊轮11a、第2轿厢吊轮11b、轿厢反绳轮14、驱动绳轮(下部反绳轮)7、新的曳引机21的驱动绳轮23以及对重吊轮12。即，图4和图5的电梯也是2：1绕绳比方式的电梯。Hang the suspension body 3 around the first car hanging sheave 11a, the second car hanging sheave 11b, the car reversing sheave 14, the driving sheave (lower reversing sheave) 7, the new car suspending sheave 11a, the second car suspending sheave 11b, the driving sheave (lower reversing sheave) and The driving sheave 23 of the traction machine 21 and the counterweight suspension wheel 12. That is, the elevators in Fig. 4 and Fig. 5 are also elevators of the 2:1 roping ratio system.
图6是示出图5的曳引机21的支承构造的概要的立体图。曳引机主体22支承在第2反绳轮梁17b上，驱动绳轮23配置在反绳轮梁17a、17b间的空间的正上方。由此，悬挂体3的从驱动绳轮23朝向下方的部分通过反绳轮梁17a、17b间的空间。其他的结构与改装前相同，但是也可以根据需要更换为新的设备。FIG. 6 is a perspective view showing an outline of a support structure of the hoisting machine 21 of FIG. 5 . The hoisting machine main body 22 is supported by the second reverse sheave beam 17b, and the drive sheave 23 is arranged directly above the space between the reverse sheave beams 17a, 17b. Accordingly, the part of the suspension body 3 directed downward from the driving sheave 23 passes through the space between the anti-sheave beams 17a, 17b. Other structures are the same as before the modification, but it can also be replaced with new equipment as needed.
在这种无机房电梯的改装方法中，由于在井道4内的上部的曾配置对重反绳轮15的位置处设置新的曳引机21，因此能够沿用诸多设备来设置安装尺寸及外形尺寸与改装前不同的曳引机21。由此，能够使用最新的曳引机21，并且实现改装工期的缩短。In this method of refitting an elevator without a machine room, since a new traction machine 21 is installed at the upper part of the hoistway 4 where the counterweight reversing sheave 15 was once arranged, many devices can be used to set the installation dimensions and external dimensions. Traction machine 21 different from before refitting. Thereby, the latest hoisting machine 21 can be used, and the remodeling work period can be shortened.
并且，由于能够将曳引机21配置在井道4内的上部，因此底坑万一进水，曳引机21也不会沾湿。In addition, since the hoisting machine 21 can be arranged at the upper portion in the hoistway 4, even if water enters the pit, the hoisting machine 21 will not get wet.
此外，由于使用既设的曳引机5的驱动绳轮7作为改装后的电梯的下部反绳轮，因此即使在切断了曳引机5的动力后，也能够原样保留驱动绳轮7，能够削减废弃物。In addition, since the driving sheave 7 of the existing hoisting machine 5 is used as the lower anti-sheave of the refitted elevator, even after the power of the hoisting machine 5 is cut off, the driving sheave 7 can be kept as it is. Reduce waste.
此外，由于通过将既设的曳引机5的线圈部分卸下而消除阻力，因此即使将驱动绳轮7用作下部反绳轮，也不会施加多余的负荷。In addition, since the resistance is eliminated by removing the coil portion of the existing hoisting machine 5, even if the driving sheave 7 is used as the lower reversing sheave, no unnecessary load is applied.
并且，由于使用薄型曳引机作为新的曳引机21，因而能够容易地在曾设置对重反绳轮15的空间中设置曳引机21。In addition, since a thin hoisting machine is used as the new hoisting machine 21, the hoisting machine 21 can be easily installed in the space where the counterweight reversing sheave 15 was installed.
另外，在图6中在反绳轮梁17b上直接设置了曳引机21，但也可以是，例如如图7所示，在反绳轮梁17a、17b间架设一对曳引机台24a、24b，在曳引机台24a、24b上设置曳引机21。即，也可以隔着曳引机台24a、24b将曳引机21设置在反绳轮梁17a、17b上。在该情况下，能够使施加给曳引机21的载荷分散地作用于反绳轮梁17a、17b，能够使反绳轮梁17a、17b中产生的应力接近于改装前。In addition, in FIG. 6, the traction machine 21 is installed directly on the reverse sheave beam 17b, but, for example, as shown in FIG. , 24b, set the traction machine 21 on the traction machine platform 24a, 24b. That is, the hoisting machine 21 may be installed on the anti-sheave beams 17a, 17b via the hoisting machine stands 24a, 24b. In this case, the load applied to the hoisting machine 21 can be dispersedly acted on the reverse sheave beams 17a, 17b, and the stress generated in the reverse sheave beams 17a, 17b can be brought closer to that before refitting.
并且，在上述的例子中，以使驱动绳轮23朝向轿厢1侧的方式设置了曳引机21，但也可以是，以使驱动绳轮23朝向轿厢1相反侧的方式，即，使曳引机主体22朝向轿厢1侧的方式设置曳引机21。在该情况下，能够容易地从轿厢1上面进行曳引机主体22的维护检修。In addition, in the above-mentioned example, the hoisting machine 21 is provided so that the drive sheave 23 faces the car 1 side, but it may also be so that the drive sheave 23 faces the opposite side of the car 1, that is, The hoisting machine 21 is installed so that the hoisting machine main body 22 faces the car 1 side. In this case, maintenance and inspection of the hoisting machine main body 22 can be easily performed from the upper surface of the car 1 .
此外，在上述的例子中，将对重反绳轮15与新的曳引机21进行更换，但也可以是，根据配置在井道4上部的设备的布局而将轿厢反绳轮14与新的曳引机21进行更换。In addition, in the above-mentioned example, the reversing sheave 15 and the new traction machine 21 will be replaced, but it is also possible to replace the car reversing sheave 14 with the new traction machine according to the layout of the equipment arranged on the hoistway 4 top. The traction machine 21 is replaced.
此外也可以是，不将既设的曳引机5的驱动绳轮7用作反绳轮，撤除曳引机5，将新的反绳轮设置在井道4的下部。In addition, instead of using the drive sheave 7 of the existing hoisting machine 5 as a reverse sheave, the traction machine 5 may be removed and a new reverse sheave may be installed at the lower portion of the hoistway 4 .
并且，在上述的例子中，作为既设的曳引机5示出了体长型曳引机，但也可以是，既设的曳引机是薄型曳引机。In addition, in the above-mentioned example, the long-body type hoisting machine was shown as the existing hoisting machine 5, but the existing hoisting machine may be a thin hoisting machine.
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| CN112499442A (en) * | 2020-12-08 | 2021-03-16 | 日立电梯（中国）有限公司 | Machine room-less elevator transformation method and machine room-less elevator |
| CN112520547A (en) * | 2020-12-08 | 2021-03-19 | 日立电梯（中国）有限公司 | Machine room-less elevator transformation method and machine room-less elevator |
| CN112499440B (en) * | 2020-12-08 | 2024-04-05 | 日立电梯（中国）有限公司 | Machine-room-free elevator transformation method and machine-room-free elevator |
| CN112499441B (en) * | 2020-12-08 | 2023-11-21 | 日立电梯（中国）有限公司 | Machine-room-free elevator transformation method and machine-room-free elevator |
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| JPH04213581A (en) * | 1990-12-12 | 1992-08-04 | Mitsubishi Electric Corp | Installation method for linear motor type elevator |
| JP2000044147A (en) * | 1998-08-03 | 2000-02-15 | Fujitec Co Ltd | Elevator device |
| JP3797873B2 (en) * | 2000-05-18 | 2006-07-19 | 株式会社日立ビルシステム | Elevator equipment |
| CN1206152C (en) * | 2000-05-22 | 2005-06-15 | 三菱电机株式会社 | Elevator device |
| JP2002145544A (en) * | 2000-11-10 | 2002-05-22 | Toshiba Corp | Elevator drive control device |
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