CN113911882A - Elevator device with 6:1 hanging function - Google Patents
Elevator device with 6:1 hanging function Download PDFInfo
- Publication number
- CN113911882A CN113911882A CN202111373557.6A CN202111373557A CN113911882A CN 113911882 A CN113911882 A CN 113911882A CN 202111373557 A CN202111373557 A CN 202111373557A CN 113911882 A CN113911882 A CN 113911882A
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- China
- Prior art keywords
- car
- counterweight
- diversion sheave
- traction
- main machine
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- 238000009434 installation Methods 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a 6:1 hanging elevator device, which comprises a traction main machine, a car bottom diverting pulley, a car guide wheel, a car rope head, a counterweight diverting pulley, a counterweight guide wheel, a counterweight rope head, a counterweight guide rail, a car guide rail, a main machine mounting beam, a car rope head mounting beam, a car, a counterweight and a traction steel wire rope, wherein the car bottom diverting pulley is arranged on the car bottom; one end of the traction steel wire rope sequentially passes through the traction wheel, the car bottom diversion sheave and the car guide pulley and is fixed on the car rope head; the other end of the dragging steel wire rope sequentially passes through the dragging wheel, the counterweight diverting pulley, the counterweight guide wheel and the counterweight diverting pulley and is fixed on the counterweight rope head. The invention adopts a traction ratio of 6: the elevator device is configured in a system mode 1, and under the condition of the same load specification, the system capacity of the traction main machine is greatly reduced compared with the original 4:1 traction ratio, so that the energy conservation and environmental protection of the traction main machine are facilitated, the appearance size of the main machine can be reduced, and the well arrangement and installation maintenance of the machine-room-less elevator are facilitated.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a 6:1 hanging elevator device.
Background
Along with the progress of society and the development of economy, the market demand of large-size machine-room-less elevators such as automobile elevators, large-load goods elevators and the like is continuously increased, and the elevator device is configured according to the traditional traction ratio of 2:1 or 4:1, so that the requirements on the system capacity of a traction main machine and the strength of a steel wire rope are very high, on one hand, the requirements on energy conservation and environmental protection are not facilitated, on the other hand, the sizes of all parts are large, and the requirements on the shaft arrangement, installation and maintenance of the whole elevator are not facilitated.
Disclosure of Invention
The invention aims to provide a 6:1 hanging elevator device which can improve the performance of a traction main machine, optimize the layout of a hoistway and improve the unbalanced loading condition of a car and a counterweight.
The invention is realized by the following technical scheme:
a6: 1 hanging elevator device comprises a car, a counterweight and a traction system, wherein the car and the counterweight are arranged in a hoistway; wherein: the traction system comprises a traction main machine, a car bottom diverting pulley, a car guide pulley, a car rope head, a counterweight diverting pulley, a counterweight guide pulley, a counterweight rope head and a traction steel wire rope; the car bottom diversion sheave comprises a first car bottom diversion sheave, a second car bottom diversion sheave, a third car bottom diversion sheave and a fourth car bottom diversion sheave; the counterweight diversion sheave comprises a first counterweight diversion sheave, a second counterweight diversion sheave and a third counterweight diversion sheave; the car guide wheels comprise a first car guide wheel and a second car guide wheel; the counterweight guide wheels comprise a first counterweight guide wheel and a second counterweight guide wheel; one end of the traction steel wire rope passes through a traction wheel, a first car bottom diversion sheave, a first car guide wheel, a second car bottom diversion sheave, a third car bottom diversion sheave, a second car guide wheel and a fourth car bottom diversion sheave in sequence and then is fixed on the car rope head; the other end of the traction steel wire rope sequentially passes through the traction wheel, the first counterweight diversion sheave, the first counterweight guide wheel, the second counterweight diversion sheave, the second counterweight guide wheel and the third counterweight diversion sheave and then is fixed on the counterweight rope head.
Furthermore, the traction system also comprises a counterweight guide rail, a car guide rail, a main machine mounting beam and a car rope head mounting beam; the car guide rail is arranged in a hoistway; the main machine mounting beam is fixed on the three guide rails, namely the car guide rail and the counterweight guide rail, through mounting pieces, or one end of the main machine mounting beam is fixed on the counterweight guide rail, the other end of the main machine mounting beam is fixed on a well wall, or both ends of the main machine mounting beam are fixed on the well wall; the car rope head mounting beam is fixed on the car guide rail through a mounting part or fixed on a well wall.
Furthermore, the car platform diverting pulley is installed at the bottom of the car, the second car platform diverting pulley and the third car platform diverting pulley are used in pairs, and the second car platform diverting pulley and the third car platform diverting pulley are both parallel to the lifting plane of the car guide rail; the wrap angle of the traction steel wire rope on the second car bottom rope pulley and the third car bottom rope pulley is 90 degrees; the first car bottom diversion sheave and the fourth car bottom diversion sheave are used in pairs; the first car bottom diversion sheave and the fourth car bottom diversion sheave are respectively vertical to the lifting plane of the car guide rail; the wrap angle of the traction steel wire rope on the first car bottom diverting pulley and the fourth car bottom diverting pulley is 180 degrees.
Furthermore, the traction main machine, the counterweight guide wheel and the counterweight rope head are all installed on the main machine installation beam, the traction main machine inclines for an angle relative to the main machine installation beam, and the counterweight guide wheel is parallel to the main machine installation beam.
Further, the car leading wheel is installed on the car guide rail, the car fag end is installed on car fag end installation roof beam.
Further, the counterweight diverting pulley inclines at an angle relative to the main machine mounting beam.
Further, the counterweight is surrounded by the car guide rail and the two counterweight guide rails by three guide rails.
Furthermore, the counterweight, the main machine mounting beam, the car rope head mounting beam, the traction main machine, the counterweight guide wheel, the car guide wheel, the counterweight rope head and the car rope head do not interfere with car parts except the car bottom rope pulley on a horizontal projection plane.
The invention has the beneficial effects that:
the invention adopts a traction ratio of 6:1, the system configuration of the elevator device is carried out, and under the condition of the same load specification, the system capacity of the traction host machine is greatly reduced compared with the original 4:1 traction ratio, so that the energy conservation and environmental protection of the traction host machine are facilitated, the appearance size of the host machine can be reduced, and the well arrangement and installation maintenance of the elevator without a machine room are facilitated; the number of the car bottom diversion sheave and the car guide wheel is less than that of the 6:1 traction scheme in the prior art, the winding times of the traction steel wire rope are reduced, and the service life of the traction steel wire rope is prolonged; the traction main machine, the counterweight guide wheel, the counterweight rope head and the like are arranged on the main machine mounting beam side by side, and the mounting position is fixed, so that well construction and maintenance operation are facilitated; each dragging part does not interfere with the car parts except the car bottom diversion sheave on the horizontal projection plane, the height of the top layer is not influenced by the parts such as the dragging main machine, the requirements on the height of the top layer of the well and the depth of a pit can be reduced, and the utilization rate of the well space is improved.
Drawings
FIG. 1 is a schematic structural view of an elevator apparatus suspended from a hoist in a 6 to 1 ratio according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a 6 to 1 hoistway layout of a suspended elevator apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the main machine side layout of an elevator apparatus suspended from the elevator apparatus of example 6 to 1 according to the present invention;
fig. 4 is a schematic diagram showing the layout of the elevator apparatus according to example 6 to 1 on the non-main machine side of the present invention.
In the drawings: 1-dragging the host; 21-a first car bottom diverting pulley; 22-a second platform diverting pulley; 23-a third car bottom diverting pulley; 24-a fourth car bottom diverting pulley; 31-a first car guide wheel; 32-a second car guide wheel; 4-car rope heads; 51-a first counterweight diverting pulley; 52-a second counterweight diverting pulley; 53-a third counterweight diverting pulley; 61-a first counterweight guide wheel; 62-a second counterweight guide wheel; 7-counterweight rope head; 8-counterweight guide rails; 9-car guide rails; 10-a host mounting beam; 11-car rope end mounting beam; 12-a car; 13-counterweight; and 14-dragging the steel wire rope.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.
It should be noted that all the directional indications (such as up, down, left, right, front, back, upper end, lower end, top, bottom … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In the present invention, unless expressly stated or limited otherwise, the term "coupled" is to be interpreted broadly, e.g., "coupled" may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature; in addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 4, a 6 to 1 hanging elevator device comprises a car 12, a counterweight 13 and a traction system connected with the car 12 and the counterweight 13, wherein the car 12 and the counterweight 13 are arranged in a hoistway; wherein: the traction system comprises a traction main machine 1, a car bottom diverting pulley, a car guide pulley, a car rope head 4, a counterweight diverting pulley, a counterweight guide pulley, a counterweight rope head 7 and a traction steel wire rope 14; the car bottom diversion sheave comprises a first car bottom diversion sheave 21, a second car bottom diversion sheave 22, a third car bottom diversion sheave 23 and a fourth car bottom diversion sheave 24; the counterweight diverting pulleys comprise a first counterweight diverting pulley 51, a second counterweight diverting pulley 52 and a third counterweight diverting pulley 53; the car guide wheels include a first car guide wheel 31 and a second car guide wheel 32; the counterweight guide wheels comprise a first counterweight guide wheel 61 and a second counterweight guide wheel 62; one end of the traction steel wire rope 14 passes through a traction wheel, a first car bottom diversion sheave 21, a first car guide sheave 31, a second car bottom diversion sheave 22, a third car bottom diversion sheave 23, a second car guide sheave 32 and a fourth car bottom diversion sheave 24 in sequence and then is fixed on the car rope head 4; the other end of the hoisting rope 14 passes through the traction sheave, the first counterweight diverting pulley 51, the first counterweight guide pulley 61, the second counterweight diverting pulley 52, the second counterweight guide pulley 62 and the third counterweight diverting pulley 53 in sequence and then is fixed on the counterweight rope head 7.
In the present invention, the traction ratio is 6:1, the system configuration of the elevator device is carried out, and under the condition of the same load specification, the system capacity of the traction main machine 1 is greatly reduced compared with the original 4:1 traction ratio, so that the energy conservation and environmental protection of the traction main machine 1 are facilitated, the appearance size of the main machine can be reduced, and the well arrangement and installation maintenance of the machine room-less elevator are facilitated; the number of the car bottom diversion sheave and the car guide wheel is less than that of the 6:1 traction scheme in the prior art, the winding times of the traction steel wire rope 14 are reduced, and the service life of the traction steel wire rope 14 is prolonged. The invention realizes that the elevator with large load is dragged by an elevator system (the traction main machine 1, the diversion sheave, the steel wire rope and the like) with smaller specification, reduces the specification configuration of the traction main machine 1, the diversion sheave and the steel wire rope of the elevator, reduces the operation difficulty of installation and maintenance of the elevator main machine without a machine room, reduces the winding times of the steel wire rope by reducing the number of gear trains, prolongs the service life of the steel wire rope, reduces the appearance size of the main machine, optimizes the arrangement of the shaft, and greatly improves the utilization rate of the shaft space.
Specifically, in the embodiment, the traction system further includes a counterweight guide rail 8, a car guide rail 9, a main machine installation beam 10, and a car rope end installation beam 11; the car guide rail 9 is installed in a hoistway; the main machine mounting beam 10 is fixed on the three guide rails of the car guide rail 9 and the counterweight guide rail 8 through mounting pieces, or one end of the main machine mounting beam 10 is fixed on the counterweight guide rail 8, and the other end of the main machine mounting beam is fixed on a shaft wall, or both ends of the main machine mounting beam are fixed on the shaft wall; the car rope head mounting beam 11 is fixed on the car guide rail 9 through a mounting member or fixed on a hoistway wall.
Specifically, in the embodiment, the platform diverting pulley is installed at the bottom of the car 12, the second platform diverting pulley 22 and the third platform diverting pulley 23 are used in pair, and both the second platform diverting pulley 22 and the third platform diverting pulley 23 are parallel to the lifting plane of the car guide rail 9; the wrap angle of the traction steel wire rope 14 on the second car bottom diverting pulley 22 and the third car bottom diverting pulley 23 is 90 degrees; the first platform diverting pulley 21 and the fourth platform diverting pulley 24 are used in pairs; the first car platform diverting pulley 21 and the fourth car platform diverting pulley 24 are respectively vertical to the lifting plane of the car guide rail 9; the wrap angle of the hoisting rope 14 on the first car platform diverting pulley 21 and the fourth car platform diverting pulley 24 is 180 °.
Specifically, in this embodiment, the traction main machine 1, the counterweight guide wheel, and the counterweight rope head 7 are all mounted on the main machine mounting beam 10, the traction main machine 1 is inclined at an angle relative to the main machine mounting beam 10, and the counterweight guide wheel is parallel to the main machine mounting beam 10. It should be noted that the traction main machine 1, the counterweight guide wheel and the counterweight rope head 7 are fixed on the main machine installation beam 10, the car guide wheel is fixed on the car guide rail 9 through the installation part, and the positions of all the parts are relatively fixed and are basically located at the same height, so that the installation and the maintenance are convenient.
Specifically, in this embodiment, the car guide pulley is installed on the car guide rail 9, and the car rope 4 is installed on the car rope end installation beam 11.
Specifically, in this embodiment, the counterweight sheave is inclined at an angle relative to the main machine installation beam 10.
Specifically, in this embodiment, the counterweight 13 is surrounded by three guide rails, namely, the car guide rail 9 and the two counterweight guide rails 8.
Specifically, in the embodiment, the counterweight 13, the main machine mounting beam 10, the car rope head mounting beam 11, the traction main machine 1, the counterweight guide wheel, the car guide wheel, the counterweight rope head 7, and the car rope head 4 do not interfere with car components other than the car bottom diverting pulley on a horizontal projection plane. The hoisting members do not interfere with the car components except the car bottom diverting pulley on the horizontal projection plane, the height of the top floor is not influenced by the components such as the hoisting main machine 1, the requirements on the height of the top floor of the shaft and the depth of the pit can be reduced, and the utilization rate of the shaft space can be improved.
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.
Claims (8)
1. A6: 1 hanging elevator device comprises a car, a counterweight and a traction system, wherein the car and the counterweight are arranged in a hoistway; the method is characterized in that: the traction system comprises a traction main machine, a car bottom diverting pulley, a car guide pulley, a car rope head, a counterweight diverting pulley, a counterweight guide pulley, a counterweight rope head and a traction steel wire rope; the car bottom diversion sheave comprises a first car bottom diversion sheave, a second car bottom diversion sheave, a third car bottom diversion sheave and a fourth car bottom diversion sheave; the counterweight diversion sheave comprises a first counterweight diversion sheave, a second counterweight diversion sheave and a third counterweight diversion sheave; the car guide wheels comprise a first car guide wheel and a second car guide wheel; the counterweight guide wheels comprise a first counterweight guide wheel and a second counterweight guide wheel; one end of the traction steel wire rope passes through a traction wheel, a first car bottom diversion sheave, a first car guide wheel, a second car bottom diversion sheave, a third car bottom diversion sheave, a second car guide wheel and a fourth car bottom diversion sheave in sequence and then is fixed on the car rope head; the other end of the traction steel wire rope sequentially passes through the traction wheel, the first counterweight diversion sheave, the first counterweight guide wheel, the second counterweight diversion sheave, the second counterweight guide wheel and the third counterweight diversion sheave and then is fixed on the counterweight rope head.
2. A 6 to 1 hanging elevator installation according to claim 1 wherein: the traction system also comprises a counterweight guide rail, a car guide rail, a main machine mounting beam and a car rope head mounting beam; the car guide rail is arranged in a hoistway; the main machine mounting beam is fixed on the three guide rails, namely the car guide rail and the counterweight guide rail, through mounting pieces, or one end of the main machine mounting beam is fixed on the counterweight guide rail, the other end of the main machine mounting beam is fixed on a well wall, or both ends of the main machine mounting beam are fixed on the well wall; the car rope head mounting beam is fixed on the car guide rail through a mounting part or fixed on a well wall.
3. A 6 to 1 hanging elevator installation according to claim 2 wherein: the car bottom diversion sheave is mounted at the bottom of the car, the second car bottom diversion sheave and the third car bottom diversion sheave are used in pairs, and the second car bottom diversion sheave and the third car bottom diversion sheave are both parallel to the lifting plane of the car guide rail; the wrap angle of the traction steel wire rope on the second car bottom rope pulley and the third car bottom rope pulley is 90 degrees; the first car bottom diversion sheave and the fourth car bottom diversion sheave are used in pairs; the first car bottom diversion sheave and the fourth car bottom diversion sheave are respectively vertical to the lifting plane of the car guide rail; the wrap angle of the traction steel wire rope on the first car bottom diverting pulley and the fourth car bottom diverting pulley is 180 degrees.
4. A 6 to 1 hanging elevator installation according to claim 2 wherein: the traction main machine, the counterweight guide wheel and the counterweight rope head are all installed on the main machine installation beam, the traction main machine inclines for an angle relative to the main machine installation beam, and the counterweight guide wheel is parallel to the main machine installation beam.
5. A 6 to 1 hanging elevator installation according to claim 3 wherein: the car leading wheel is installed on the car guide rail, the car fag end is installed on the car fag end installation roof beam.
6. A 6 to 1 hanging elevator installation according to claim 2 wherein: the counterweight diverting pulley inclines at an angle relative to the main machine mounting beam.
7. A 6 to 1 hanging elevator installation according to claim 2 wherein: the counterweight is surrounded by the car guide rail and the two counterweight guide rails by three guide rails.
8. A 6 to 1 hanging elevator installation according to claim 2 wherein: the counterweight, the main machine mounting beam, the car rope head mounting beam, the traction main machine, the counterweight guide wheel, the car guide wheel, the counterweight rope head and the car rope head are not interfered with car parts except the car bottom rope pulley on a horizontal projection plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373557.6A CN113911882A (en) | 2021-11-19 | 2021-11-19 | Elevator device with 6:1 hanging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373557.6A CN113911882A (en) | 2021-11-19 | 2021-11-19 | Elevator device with 6:1 hanging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113911882A true CN113911882A (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111373557.6A Pending CN113911882A (en) | 2021-11-19 | 2021-11-19 | Elevator device with 6:1 hanging function |
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| Country | Link |
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| CN (1) | CN113911882A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538247A (en) * | 2022-02-28 | 2022-05-27 | 日立电梯（中国）有限公司 | Elevator device with 8:1 hanging function |
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| JP2001302138A (en) * | 2000-04-14 | 2001-10-31 | Mitsubishi Electric Corp | Main rope device for elevator |
| CA2512565A1 (en) * | 2003-01-31 | 2004-08-12 | Kone Corporation | Elevator |
| US20050236232A1 (en) * | 2002-11-04 | 2005-10-27 | Jorma Mustalahti | Elevator |
| JP2010105770A (en) * | 2008-10-29 | 2010-05-13 | Toshiba Elevator Co Ltd | Elevator system |
| JP2013035684A (en) * | 2011-07-13 | 2013-02-21 | Mitsubishi Electric Corp | Method and tool for installing elevator |
| CN112173928A (en) * | 2020-10-26 | 2021-01-05 | 中科西奥电梯有限公司 | One is based on 6: 1-suspension type freight elevator traction structure |
| CN213505523U (en) * | 2020-10-28 | 2021-06-22 | 菱王电梯有限公司 | Traction structure of 4: 1 elevator |
| CN213651564U (en) * | 2020-10-26 | 2021-07-09 | 中科西奥电梯有限公司 | Cargo elevator tows structure |
| CN216190246U (en) * | 2021-11-19 | 2022-04-05 | 日立电梯（中国）有限公司 | Elevator device with 6:1 hanging function |
-
2021
- 2021-11-19 CN CN202111373557.6A patent/CN113911882A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001302138A (en) * | 2000-04-14 | 2001-10-31 | Mitsubishi Electric Corp | Main rope device for elevator |
| US20050236232A1 (en) * | 2002-11-04 | 2005-10-27 | Jorma Mustalahti | Elevator |
| CA2512565A1 (en) * | 2003-01-31 | 2004-08-12 | Kone Corporation | Elevator |
| JP2010105770A (en) * | 2008-10-29 | 2010-05-13 | Toshiba Elevator Co Ltd | Elevator system |
| JP2013035684A (en) * | 2011-07-13 | 2013-02-21 | Mitsubishi Electric Corp | Method and tool for installing elevator |
| CN112173928A (en) * | 2020-10-26 | 2021-01-05 | 中科西奥电梯有限公司 | One is based on 6: 1-suspension type freight elevator traction structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538247A (en) * | 2022-02-28 | 2022-05-27 | 日立电梯（中国）有限公司 | Elevator device with 8:1 hanging function |
| CN114538247B (en) * | 2022-02-28 | 2024-04-23 | 日立电梯（中国）有限公司 | 8 To1 hanging elevator device |
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