CN112777448B - Traction machine system and elevator installation method - Google Patents
Traction machine system and elevator installation method Download PDFInfo
- Publication number
- CN112777448B CN112777448B CN202110208357.9A CN202110208357A CN112777448B CN 112777448 B CN112777448 B CN 112777448B CN 202110208357 A CN202110208357 A CN 202110208357A CN 112777448 B CN112777448 B CN 112777448B
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- groove
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- 238000009434 installation Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000725 suspension Substances 0.000 claims abstract description 69
- 239000011247 coating layer Substances 0.000 claims abstract description 15
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims abstract description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000011900 installation process Methods 0.000 abstract description 7
- 230000009194 climbing Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
-
- 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
- B66B7/022—Guideways; Guides with a special shape
-
- 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
- B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The application discloses a traction machine system and an elevator installation method, wherein the traction machine system comprises a traction machine with a traction wheel and a first suspension part for driving a car to run, the traction wheel is provided with a first wheel groove and a second wheel groove which are wound on the first suspension part, the first suspension part comprises a first supporting body and a first coating layer which is coated on the outer periphery of the first supporting body and can be in contact with the first wheel groove, and the first coating layer is made of nonmetal materials; the second wheel groove can be used for winding the second suspension part for temporarily suspending the lift car, compared with the prior art, the scheme can effectively solve the problem that foreign matters enter between the first suspension part and the traction sheave in the installation process of the lift, can reduce the wear speed of the first suspension part with a non-metal coating layer, and can ensure that the installation process of the lift is safer; meanwhile, valuable equipment such as a cable climbing device and the like are avoided, and the installation cost of the elevator is reduced.
Description
Technical Field
The application relates to the field of elevators, in particular to a traction machine system and an elevator installation method.
Background
Along with the progress of elevator technology, more and more elevators adopt non-wire rope hanging devices, and a traction sheave of a traction machine is matched for power transmission, and in a standard 'non-wire rope hanging device for elevators', the hanging devices are divided into a wire rope and a non-wire rope, and the non-wire rope hanging device is mainly characterized in that the inside is a supporting body, the outside is coated with a coating body of a polymer elastomer, and the shape of the non-wire rope hanging device is different from the shape of the non-wire rope hanging device.
Due to the constant contact between the cover and the traction sheave. During elevator installation, foreign matter (e.g., cement, sand, or stone) falls into the gap between the suspension and the traction sheave, and the suspension rolls the foreign matter to increase wear of the coating.
Disclosure of Invention
In order to solve the problems, the application provides a traction machine system and an elevator installation method, which avoid foreign matters from entering between a suspension device and a traction sheave.
The application provides a traction machine system, which comprises a traction machine with a traction wheel and a first suspension part for driving a lift car to run, wherein the traction wheel is provided with a first wheel groove and a second wheel groove which are wound around the first suspension part, the first suspension part comprises a first supporting body and a first coating layer which is coated on the outer periphery of the first supporting body and can be in contact with the first wheel groove, and the first coating layer is made of nonmetal materials; the second sheave can be used to wind a second suspension member that pre-suspends the car.
The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.
Optionally, the number of the first wheel grooves and the second wheel grooves is multiple, and each first wheel groove and each second wheel groove are alternately arranged along the axial direction of the traction sheave;
the first hanging pieces and the second hanging pieces are multiple in number, and each first hanging piece and each second hanging piece are respectively wound on the corresponding first wheel groove and the corresponding second wheel groove.
Optionally, along the axial direction of the traction wheel, the two sides of the first wheel groove are provided with shaft shoulders, and the adjacent first wheel grooves share the same shaft shoulder;
the second wheel groove is formed in the shaft shoulder.
Optionally, the axial section of the traction wheel is followed, the section of the first wheel groove is in a strip shape, and the section of the second wheel groove is in a V shape or a U shape.
Optionally, along the axial direction of the traction sheave, the length of the first sheave groove is L1, the length of the second sheave groove is L2, and L1 is satisfied: l2=1 to 10.
Optionally, the number of the first supporting bodies is multiple, each first supporting body is sequentially arranged along the width of the first hanging piece, and the first supporting bodies are steel wire ropes, carbon fibers or fiber ropes;
the second hanger comprises a wire rope.
Optionally, the number of turns of the second suspension piece around the second wheel groove is n+0.5, and N is a natural number.
Optionally, the first suspension member and the second suspension member are both in a ring shape in a deployed state;
the diameter of the first wheel groove is D1, the inner diameter of the first hanging piece in the unfolded state is D2, and the requirement of D1 is met: d2 is less than or equal to 50;
the diameter of the first wheel groove is D3, the inner diameter of the second hanging piece in the unfolded state is D4, and the requirement of D3 is met: d4 is less than or equal to 50.
Optionally, there is a vertical reference surface passing through the center of gravity of the car, and the second wheel grooves are symmetrically distributed on two sides of the vertical reference surface.
The application also provides the following technical scheme:
an elevator installation method employing the traction machine system according to any one of the above, the elevator installation method comprising:
the top operation platform is arranged in the well, and the traction machine is arranged on the top operation platform; the method comprises the steps of carrying out a first treatment on the surface of the
The second hanging piece is respectively wound on a traction wheel of the traction machine and a guide wheel of the lift car so as to pre-hang the lift car;
installing auxiliary components of the elevator;
installing electrical components of the elevator;
cleaning the installation environment of the elevator;
the first hanging piece is respectively wound on a traction sheave of the traction machine and a guide sheave of the lift car;
and removing the second hanging piece.
According to the traction machine system and the elevator installation method, the problem that foreign matters enter between the first suspension piece with the non-metal coating layer and the traction wheel in the elevator installation process can be effectively solved, the abrasion speed of the first suspension piece can be reduced, and the elevator installation process can be safer; meanwhile, valuable equipment such as a cable climbing device and the like are avoided, and the installation cost of the elevator is reduced.
Drawings
Fig. 1 is a schematic structural view of a traction machine according to an embodiment of the present disclosure;
fig. 2 is a schematic structural view of a traction machine according to an embodiment of the present disclosure;
fig. 3 is a schematic structural view of the traction sheave of the first suspension member and the second suspension member of fig. 1 respectively wound around the traction sheave;
fig. 4 is a schematic structural view of the traction sheave of fig. 3;
FIG. 5 is a schematic view of a second hanger in a winding manner;
FIG. 6 is a schematic cross-sectional view of the first hanger of FIG. 1;
FIG. 7 is a schematic cross-sectional view of the second hanger of FIG. 1;
FIG. 8 is a schematic cross-sectional view of the second hanger of FIG. 1;
fig. 9 is a flow chart of an elevator installation method.
Reference numerals in the drawings are described as follows:
10. a traction machine; 11. traction sheave; 12. a first wheel groove; 13. a second wheel groove; 14. a shaft shoulder;
20. a first hanger; 21. a first carrier; 22. a first cladding layer;
30. a second hanger; 31. a wire rope; 32. and a second coating layer.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, the present application provides an elevator including a car and a traction machine system including a traction machine and a driven first suspension member 20 for running the car. Specifically, the traction machine 10 has a traction sheave 11, and the traction sheave 11 has a first sheave groove 12 around which a first suspension 20 is wound.
During the installation of the elevator, foreign substances such as cement, sand or stone fall into the gap between the first suspension member 20 and the traction sheave 11. For example, when installing the bracket of the elevator guide rail, it is necessary to drill holes in the hoistway wall to fix the expansion bolts, and at this time, there is a drop of foreign matter, and this portion of foreign matter drops into the gap between the first suspension member 20 and the traction sheave 11, and the first suspension member 20 may increase wear of the first suspension member 20 when rolling the foreign matter.
In order to solve this technical problem, as shown in fig. 1 to 4, referring to one of the embodiments, the traction sheave 11 further has a second sheave groove 13, and the second sheave groove 13 can be used to wind the second suspension 30 of the pre-suspended car. During the installation of the elevator, the second suspension member 30 is wound around the second sheave groove 13 of the traction sheave 11 and temporarily suspends the car, after the installation of other components of the elevator (e.g., the bracket of the elevator guide rail, or other components that may generate foreign matters) is completed, the first suspension member 20 is wound around the first sheave groove 12 of the traction sheave 11 and connected to the car, and finally the second suspension member 30 is removed, at this time, the second sheave groove 13 is empty, and the second suspension member 30 can be reused.
When the first suspension member 20 is replaced after being worn for a long time, the second suspension member 30 can be continuously wound around the second wheel groove 13 of the traction sheave 11 and temporarily suspend the car, and when the first suspension member 20 is replaced, no additional hoisting devices such as a hoist are needed in the process, so that the first suspension member 20 can be conveniently disassembled and assembled.
In the application, the problem that foreign matters enter between the first suspension piece 20 and the traction sheave 11 in the installation process of the elevator can be effectively solved, the abrasion speed of the first suspension piece 20 with a non-metal coating layer can be reduced, and the installation process of the elevator can be safer; meanwhile, valuable equipment such as a cable climbing device and the like are avoided, and the installation cost of the elevator is reduced.
The first sheave 12 and the second sheave 13 are disposed in this order in the axial direction of the traction sheave 11. In the present embodiment, the number of the first sheave grooves 12 and the second sheave grooves 13 is plural, and each of the first sheave grooves 12 and each of the second sheave grooves 13 are alternately arranged in the axial direction of the traction sheave 11; the number of the first hanging pieces 20 and the second hanging pieces 30 is plural, and each first hanging piece 20 and each second hanging piece 30 are respectively wound around the corresponding first wheel groove 12 and the corresponding second wheel groove 13.
The number of the first wheel grooves 12 and the second wheel grooves 13 is not less than 2. Wherein the number of the first wheel grooves 12 is N1, the number of the second wheel grooves 13 is N2, and N2-n1=1 is satisfied. In the present embodiment, the number of the first wheel grooves 12 is 3, and the number of the second wheel grooves 13 is 4; accordingly, the number of the first hanger 20 is 3, and the number of the second hanger 30 is 4. Of course, in other embodiments, the number of the first suspending members 20 and the number of the second suspending members 30 are adjusted according to the load of the car, which is not described herein.
In this embodiment, as shown in fig. 3 and 4, along the axial direction of the traction wheel 11, the two sides of the first wheel groove 12 are provided with shaft shoulders 14, and the adjacent first wheel grooves 12 share the same shaft shoulder 14; the second wheel groove 13 is formed in the shaft shoulder 14. Wherein, the cross section of the first wheel groove 12 is in a strip shape along the axial section of the traction wheel 11, and the cross section of the second wheel groove 13 is in a V shape or a U shape.
In order to reduce the space occupied on the traction sheave 11 by the second sheave 13, referring to one embodiment, the length of the first sheave 12 is L1, the length of the second sheave 13 is L2, and L1 is satisfied: l2=1 to 10. Preferably, L1: l2=2 to 4.
As shown in fig. 3 and 5, referring to one embodiment, the second suspension member 30 is wound around the traction sheave 11 in a manner such that the number of turns of the second suspension member 30 around the second sheave 13 is n+0.5 and N is a natural number (for example, in fig. 3, N is 0, the manner in which the second suspension member 30 is wound around the traction sheave 11). Preferably, n=1, i.e., 1.5 turns, to be able to increase the friction coefficient of the second hanger 30.
In this embodiment, the first suspension member 20 and the second suspension member 30 are both in a ring shape; the diameter of the first wheel groove 12 is D1, the inner diameter of the first hanger 20 in the unfolded state is D2, and D1 is satisfied: d2 is less than or equal to 50; the diameter of the first wheel groove 12 is D3, the inner diameter of the second hanger 30 in the unfolded state is D4, and D3 is satisfied: d4 is less than or equal to 50.
For a stable suspension of the traction system, reference is made to one of the embodiments in which there is a vertical reference plane (X in fig. 1) through the centre of gravity of the car, on both sides of which the second grooves 13 are each symmetrically distributed. Of course, in order to stabilize the traction system for driving the car, the first sheave grooves 12 are each symmetrically distributed on both sides of the vertical reference surface, and there are cases where the vertical reference surface passes through one of the first sheave grooves 12.
In this embodiment, the car has guide wheels (not shown), and the guide wheels are provided with a third wheel groove for winding the first suspension member 20 and a fourth wheel groove for winding the second suspension member 30. The number of the first wheel grooves 12 is equal to that of the third wheel grooves, and the groove type of the first wheel grooves 12 is the same as that of the third wheel grooves; the number of the second wheel grooves 13 is equal to the number of the fourth wheel grooves, and the groove type of the second wheel grooves 13 is the same as the groove type of the fourth wheel grooves.
In the present embodiment, the first hanger 20 is a traction hanger whose outer coating is made of a nonmetallic material, and the cross section of the first hanger 20 is in a bar shape, a wedge shape, or the like. In a specific arrangement of the first suspension member 20, as shown in fig. 6, referring to one embodiment, the first suspension member 20 includes a first supporting member 21 and a first coating layer 22 that is coated on the outer periphery of the first supporting member 21 and can contact with the first wheel groove 12, and the first supporting member 21 is a main component of the first suspension member 20 that receives a tensile load. In the present embodiment, the number of the first carriers 21 is plural, and each of the first carriers 21 is sequentially arranged along the width of the first hanger.
The longer side has a size of the width of the first suspension member 20 and the shorter side has a size of the thickness of the first suspension member 20, as seen in the cross section of the first suspension member 20, a portion of the first suspension member 20 is wound around the first rope groove of the traction sheave 11 in the use state, the thickness of which can be understood as the size of the portion in the radial direction of the traction sheave 11, and the width of which can be understood as the size of the portion in the axial direction of the traction sheave 11. Each of the first supporting bodies 21 extends along the length direction of the first hanger 20, is sequentially arranged along the width direction of the first hanger 20, and is located at the center of the first coating layer 22.
The first cladding layer 22 is made of a non-metal material, for example: the first coating layer 22 is made of polyurethane. The first supporting body 21 is made of a material with higher tensile strength, for example: the first carrier 21 is a steel wire rope, carbon fiber or fiber rope. The shape of the first carrier 21 may be in various forms such as string, belt, chain, etc., and it is preferable that the first carrier 21 has a circular cross section.
In a specific arrangement of the second suspension member 30, as shown in fig. 7 and 8, referring to one embodiment, the second suspension member 30 includes a wire rope 31. Of course, in order to reduce friction between the second suspension member 30 and the traction sheave 11, the second suspension member 30 further includes a second coating layer 32 coated on the outer side of the wire rope 31, and the second coating layer 32 is made of polyurethane and has elasticity.
As shown in fig. 9, the present application further provides an elevator installation method, which adopts the traction machine system of the above embodiments, the elevator installation method comprising:
a top operation platform is installed on the hoistway, and the traction machine 10 is installed on the top operation platform;
the second suspending members 30 are wound around the traction sheave 11 of the traction machine 10 and the guide sheave of the car, respectively, to pre-suspend the car;
installing auxiliary components of the elevator;
installing electrical components of the elevator;
cleaning the installation environment of the elevator;
the first suspending members 20 are wound around the traction sheave 11 of the traction machine 10 and the guide sheave of the car, respectively;
the second hanger 30 is removed.
Specifically, the traction machine 10 is installed at the top operating platform of the hoistway, and then the traction machine 10 temporarily suspends the car by means of the second suspension member 30. After other components of the elevator are installed, the first hanger 20 is wound around the first sheave 12 of the traction sheave 11 and the third sheave of the guide sheave, respectively, and the second hanger 30 is removed.
In the application, the problem that foreign matters enter between the first suspension piece 20 and the traction sheave 11 in the construction of the elevator can be effectively solved, the abrasion speed of the first suspension piece 20 can be reduced, and the installation process of the elevator can be safer; meanwhile, valuable equipment such as a cable climbing device and the like are avoided, and the installation cost of the elevator is reduced.
The auxiliary components of the elevator are components such as a guide rail, a hoistway door, a safety component, a car wall, a door machine, a car door and the like; the electrical components are components such as a control system, well illumination and the like; the installation environment of the elevator is the installation environment of a machine room, a well, a car roof, a counterweight frame, a pit and the like.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.
The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not thereby to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.
Claims (9)
1. The traction machine system comprises a traction machine with a traction wheel and a first suspension part for driving a car to run, and is characterized in that the traction wheel is provided with a first wheel groove and a second wheel groove, wherein the first wheel groove is wound on the first suspension part, the first suspension part comprises a first bearing body and a first coating layer which is coated on the periphery of the first bearing body and can be in contact with the first wheel groove, and the first coating layer is made of nonmetal; the second wheel groove can be used for winding a second suspension part for pre-suspending the car;
along the axial direction of traction sheave, the length of first race is L1, the length of second race is L2, and satisfies L1: l2=1 to 10;
the first suspension member is a belt and the second suspension member is a rope.
2. The traction machine system according to claim 1, wherein the number of the first sheave grooves and the second sheave grooves is plural, and each first sheave groove and each second sheave groove are alternately arranged in an axial direction of the traction sheave;
the first hanging pieces and the second hanging pieces are multiple in number, and each first hanging piece and each second hanging piece are respectively wound on the corresponding first wheel groove and the corresponding second wheel groove.
3. The traction machine system of claim 2, wherein the first sheave grooves have shoulders on both sides thereof along an axial direction of the traction wheel, and adjacent first sheave grooves share the same shoulder;
the second wheel groove is formed in the shaft shoulder.
4. The machine system according to claim 1, wherein the first sheave groove has a bar-shaped cross section and the second sheave groove has a V-shaped or U-shaped cross section along an axial cross section of the traction sheave.
5. The traction machine system according to claim 1 or 4, wherein the number of the first supporting bodies is plural, each first supporting body is sequentially arranged along the width of the first suspension member, and the first supporting bodies are steel wire ropes, carbon fibers or fiber ropes;
the second hanger comprises a wire rope.
6. The traction machine system according to claim 1, wherein the number of turns of the second suspension member around the second sheave groove is n+0.5, N being a natural number.
7. The traction machine system of claim 1, wherein the expanded state of the first suspension member and the expanded state of the second suspension member are both annular;
the diameter of the first wheel groove is D1, the inner diameter of the first hanging piece in the unfolded state is D2, and the requirement of D1 is met: d2 is less than or equal to 50;
the diameter of the first wheel groove is D3, the inner diameter of the second hanging piece in the unfolded state is D4, and the requirement of D3 is met: d4 is less than or equal to 50.
8. The machine system of claim 1, wherein there is a vertical reference surface passing through the center of gravity of the car, and wherein the second sheave grooves are each symmetrically disposed on either side of the vertical reference surface.
9. Elevator installation method employing the hoisting machine system according to any one of claims 1 to 8, characterized in that the elevator installation method comprises:
the top operation platform is arranged in the hoistway, and the traction machine is arranged on the top operation platform;
the second hanging piece is respectively wound on a traction wheel of the traction machine and a guide wheel of the lift car so as to pre-hang the lift car;
installing auxiliary components of the elevator;
installing electrical components of the elevator;
cleaning the installation environment of the elevator;
the first hanging piece is respectively wound on a traction sheave of the traction machine and a guide sheave of the lift car;
and removing the second hanging piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110208357.9A CN112777448B (en) | 2021-02-24 | 2021-02-24 | Traction machine system and elevator installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110208357.9A CN112777448B (en) | 2021-02-24 | 2021-02-24 | Traction machine system and elevator installation method |
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| CN112777448A CN112777448A (en) | 2021-05-11 |
| CN112777448B true CN112777448B (en) | 2024-01-02 |
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| CN105752809A (en) * | 2016-03-29 | 2016-07-13 | 江南嘉捷电梯股份有限公司 | Tractive suspension elevator |
| CN210559056U (en) * | 2019-07-26 | 2020-05-19 | 江苏中惠舞台设备技术有限公司 | Multi-hoisting point self-rope-arranging winch |
| CN212334327U (en) * | 2020-04-02 | 2021-01-12 | 苏州江南嘉捷光机电技术有限公司 | Rope blocking device of traction machine |
| CN214527507U (en) * | 2021-02-24 | 2021-10-29 | 杭州西奥电梯有限公司 | Traction machine system |
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