CN108792897A - A kind of elevator drive system - Google Patents
A kind of elevator drive system Download PDFInfo
- Publication number
- CN108792897A CN108792897A CN201810831290.2A CN201810831290A CN108792897A CN 108792897 A CN108792897 A CN 108792897A CN 201810831290 A CN201810831290 A CN 201810831290A CN 108792897 A CN108792897 A CN 108792897A
- Authority
- CN
- China
- Prior art keywords
- load bearing
- bearing beam
- directive wheel
- drive system
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- 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
- B66B7/06—Arrangements of ropes or cables
-
- 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
- B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
Abstract
This application discloses a kind of elevator drive systems, including：The first load bearing beam and the second load bearing beam of parallel interval arrangement, offer directive wheel mounting groove and several flange connecting holes of circumferentially spaced distribution on the first load bearing beam and the second load bearing beam, in one end embedment wall of the first load bearing beam and the second load bearing beam；Flange form traction machine, it includes two flange assemblies, two flange assemblies are fastened with the flange connecting hole of the flange connecting hole of the first load bearing beam and the second load bearing beam respectively by bolt, so that flange form traction machine is supported between the first load bearing beam and the second load bearing beam；Directive wheel is arranged between the first load bearing beam and the second load bearing beam, and the axial both ends of the directive wheel are connected in the directive wheel mounting groove of the first load bearing beam and the directive wheel mounting groove of the second load bearing beam.The application is simple and compact for structure, with material it is few, from heavy and light, easy for installation.
Description
Technical field
This application involves elevator especially Lift car type elevator fields, and in particular to a kind of elevator drive system.
Background technology
Generally, the traction machine combined drive system of elevator(lift) machine room includes：Traction machine, frame in combination, beam are combined and are held
It by structural members such as beam combinations, is calculated by the elevator of load-carrying 1000kg, the weight of drive system is substantially in 1000kg or so, material profit
It is extremely low with rate, it is mostly also covert the problem of increasing environmental pollution using material！And essentially erecting bed assembly welding is completed,
Dimensional tolerance can not be effectively ensured, and seriously affect ride comfort, structural instability, beam deformation is than more serious.
Invention content
The purpose of the application is：In view of the above-mentioned problems, propose a kind of simple and ingenious structure, with material it is few, from heavy and light, easy for installation
Elevator drive system.
The technical solution of the application is：
A kind of elevator drive system, including：
The first load bearing beam and the second load bearing beam of parallel interval arrangement, are opened on first load bearing beam and the second load bearing beam
Several flange connecting holes equipped with directive wheel mounting groove and circumferentially spaced distribution, first load bearing beam and second are held
In one end embedment wall of carrier beam；
Flange form traction machine, the flange form traction machine include two flange assemblies, and described two flange assemblies are by spiral shell
Bolt is fastened with the flange connecting hole of the flange connecting hole of first load bearing beam and second load bearing beam respectively, so that institute
Flange form traction machine is stated to be supported between first load bearing beam and the second load bearing beam；And
Directive wheel, the directive wheel is arranged between first load bearing beam and second load bearing beam, and the guiding
The axial both ends of wheel are connected to the directive wheel mounting groove of first load bearing beam and the directive wheel peace of second load bearing beam
In tankage.
The application further includes following preferred embodiment based on the above technical solution：
The other end of first load bearing beam and the second load bearing beam is also embedded in wall.
The both ends of first load bearing beam and the second load bearing beam are embedded to after coating yielding rubber in wall.
The crossbeam that the other end of first load bearing beam and the second load bearing beam is supported and is fixed in its both ends embedment wall
On.
Further include in one end embedment wall and the other end supports and the rope hitch plate supporting beam that is fixed on the crossbeam, it is described
Rope hitch plate supporting beam is fixed with lift car rope head plate and counterweight rope hitch plate.
It is folded with beam between first load bearing beam and the other end and the crossbeam of the second load bearing beam.
The flange form traction machine includes：
Rack,
With the fixed stator of the rack, and
The rotor being pivotally connected with the rack；
One of them described flange assembly is shaped in the rack, another described flange assembly and the rotor
It is pivotally connected, integrally formed with traction grooving on the rotor.
First load bearing beam and the second load bearing beam are section in " C ", the structure of steel product of " L ", " I " fonts.
First load bearing beam and the second load bearing beam are connected with each other by several connecting rods.
It is bolted to connection lift car rope head plate and counterweight fag end between first load bearing beam and the second load bearing beam
Plate.
The grooving of at least three circular ring shapes is provided on the directive wheel, and the directive wheel is in tilted layout and makes it
Top and bottom just misplace grooving arrangement.
The advantages of the application is：
1, the traction machine in the application and directive wheel, which directly support, is connected between two load bearing beams, at the scene only need to be by two
The end embedment wall or one end embedment wall other end of load bearing beam are supported on the original crossbeam of elevator(lift) machine room.Without
The complicated bulky transition piece (rack) made by channel steel and I-steel is configured between traction machine, directive wheel and load bearing beam,
Be greatly saved and use material, the weight of two load bearing beams there was only traditional elevator rack with bear that beam combines 50% or so.
2, each building block of this drive system of the application can assembled in advance together after transported again to live whole
It is installed in elevator(lift) machine room, when in-site installation need to only carry out simple lifting operation and do simple debugging, and non-traditional
Drive system must carry out complicated assembling (be bolted and weld) of each component at the scene like that, simplify mounting process.
3, lift car rope head plate and counterweight rope hitch plate can be also directly anchored between two load bearing beams as needed, make the driving
The structure of system is compacter, and further saving reduces dead weight, the installation of convenience in transport and use site with material.
4, carrying beam end use package form yielding rubber, and yielding rubber large area covering carrying beam end,
And be integrally embedded in wall, so that its surrounding is provided with antidetonation buffering effect, without the excessive thickness for pursuing yielding rubber, is using
In the process, yielding rubber will not occur excessive deformation and be easy aging, and beam deformation is made to be effectively improved.
Description of the drawings
In order to illustrate more clearly of the technical solution of the embodiment of the present application, required use in being described below to embodiment
Attached drawing be briefly described, the accompanying drawings in the following description is only some embodiments of the present application, for the common skill in this field
For art personnel, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the dimensional structure diagram of elevator drive system in the embodiment of the present application one；
After Fig. 2 removes load bearing beam, flange form traction machine and directive wheel for elevator drive system in the embodiment of the present application one
Structural schematic diagram；
Fig. 3 is the dimensional structure diagram of elevator drive system in the embodiment of the present application two；
Fig. 4 is the dimensional structure diagram of elevator drive system in the embodiment of the present application three；
Wherein：A- directive wheel mounting grooves, b- flange connecting holes, 1- flange form traction machines, the first load bearing beams of 2-, 3- second are held
Carrier beam, 4- lift car rope head plates, 5- counterweight rope hitch plates, 6- directive wheels, 7- rope hitch plate supporting beams, 8- counterweight fag end holders, 9- dampings
Rubber, 10- beams, 11- connecting rods, 12- crossbeams.
Specific implementation mode
Said program is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The application and be not limited to limitation scope of the present application.The implementation condition used in embodiment can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Embodiment one：
Figures 1 and 2 show that first preferred embodiment of this elevator drive system of the application, includes mainly first
The components such as load bearing beam 2, the second spandrel girder 3, flange form traction machine 1, directive wheel 6, lift car rope head plate 4 and counterweight rope hitch plate 5.Its
In：
First load bearing beam 2 and the second load bearing beam 3 are the steel plate structure that cross section is in " C " font, and the two interval one
Surely have and be arranged parallel to.Certainly, the first load bearing beam 2 and the second load bearing beam 3 can also use other structures form, such as
Section is in the structure of steel product of "L" shaped or " I " fonts.There are one respectively being opened up on first load bearing beam 2 and the second load bearing beam 3
Tilt the directive wheel mounting groove a of the strip extended.Moreover, being offered circumferentially on the first load bearing beam 2 and the second load bearing beam 3
Multiple flange connecting hole b that direction is spaced apart.One end of first load bearing beam 2 and the second load bearing beam 3 coats yielding rubber 9 and buries
In the wall for entering motor computer room, and the other end is supported on crossbeam 12 and is locked by bolt and the crossbeam 12.Crossbeam 12
Both ends embedment elevator(lift) machine room wall in.
Also, it is (above-mentioned " another that 2 and second load bearing beam 3 of aforementioned first load bearing beam is supported on that one end on crossbeam 12
End ") beam 10 of tiling is folded between crossbeam 12.
The rotor that flange form traction machine 1 is pivotally connected including rack, with the fixed stator of rack, by bearing and rack.
A flange assembly is formed in aforementioned rack, and another independent flange assembly is pivotally connected by bearing and rotor.
Rotor has the outer circumference surface being exposed to outside the traction machine, and there are many circular ring shapes for integrated molding on the outer circumference surface
Traction grooving.Both of the aforesaid flange assembly by bolt respectively with the flange connecting hole b of above-mentioned first load bearing beam 2 and above-mentioned second
The flange connecting hole b of load bearing beam 3 is fastenedly connected, and is held so that the flange form traction machine 1 is supported on the first load bearing beam 2 and second
Between carrier beam 3.
Directive wheel 6 is arranged between 2 and second load bearing beam 3 of above-mentioned first load bearing beam, and the axial both ends of the directive wheel 6
It is connected in the directive wheel mounting groove a of above-mentioned first load bearing beam 2 and the directive wheel mounting groove a of the second load bearing beam 3.Directive wheel
Why mounting groove a uses string configuration, is the loading of directive wheel 6 for convenience.It is provided on directive wheel 6 a plurality of (general
No less than three) grooving of circular ring shape.When elevator uses after-combustion structure, which is tilted a certain angle arrangement by us,
The a grooving so that top and bottom of the directive wheel just misplace, and then make the hoist ropes of itself and flange form traction machine 1
Slot matches, and the oblique slot of steel wire rope can be solved the problems, such as to steel rope abrasion (avoiding the oblique slot of steel wire rope).
Lift car rope head plate 4 and counterweight rope hitch plate 5 are welded (or by bolt) and are fixed in rope hitch plate supporting beam 7.With it is above-mentioned
Two load bearing beams are identical to be, which is also that one end is embedded in the wall of motor computer room, and the other end is supported on
On crossbeam 12.
In order to improve the connective stability of flange form traction machine 1, directive wheel 6 and the first load bearing beam 2, the second spandrel girder 3, this
Embodiment is also connected with more connecting rods 11 between the first load bearing beam 2 and the second load bearing beam 3.These connecting rods 11 and first carry
The connection type of beam 2 and the second load bearing beam 3 is to be threadedly coupled.
This elevator drive system of this implementation can pre-assembly together after, be integrally carried to scene and install to elevator machine
Fang Zhong, it is very convenient.
Embodiment two：
Fig. 3 shows second preferred embodiment of this elevator drive system of the application, structure and above-described embodiment
One is essentially identical, and the main distinction is：
First, in the present embodiment, the both ends of the first load bearing beam 2 and the second load bearing beam 3 coat yielding rubber 9 and are embedded to electricity
In the wall of terraced computer room.
Second, in the present embodiment, lift car rope head plate 4 and counterweight rope hitch plate 5 are fixed on 2 He of the first load bearing beam by bolt
Between second load bearing beam 3.This change, the benefit compared to embodiment one are：The structure of rope hitch plate supporting beam is eliminated, is saved
Material is used, reduces the production cost, and keep the structure of drive system compacter, facilitates in-site installation.
Embodiment three：
Fig. 4 shows the third preferred embodiment of this elevator drive system of the application, structure and above-described embodiment
One is essentially identical, and the main distinction is：Only lift car rope head plate 4 is fixed on the first load bearing beam 2 and the second load bearing beam 3 by bolt
Between, and counterweight rope hitch plate 5 is fixed on counterweight fag end holder 8.Lift car rope head plate 4 and counterweight rope hitch plate 5 can be according to different
Elevator shaft and demand provide different arrangements.
Above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to allow people that can understand this Shen
Content please is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application main technical schemes
The equivalent transformation or modification that Spirit Essence is done, should all cover within the protection domain of the application.
Claims (10)
1. a kind of elevator drive system, which is characterized in that including：
The first load bearing beam (2) and the second load bearing beam (3), first load bearing beam (2) and the second load bearing beam of parallel interval arrangement
(3) several flange connecting holes (b) of directive wheel mounting groove (a) and circumferentially spaced distribution are offered on, described
One end of one load bearing beam (2) and the second load bearing beam (3) is embedded in wall；
Flange form traction machine (1), the flange form traction machine (1) include two flange assemblies, described two flange assemblies by
The bolt flange connecting hole (b) with the flange connecting hole (b) and second load bearing beam (3) of first load bearing beam (2) respectively
Fastening, so that the flange form traction machine (1) is supported between first load bearing beam (2) and the second load bearing beam (3)；With
And
Directive wheel (6), the directive wheel (6) are arranged between first load bearing beam (2) and second load bearing beam (3), and
And the axial both ends of the directive wheel (6) are connected to the directive wheel mounting groove (a) and described second of first load bearing beam (2)
In the directive wheel mounting groove (a) of load bearing beam (3).
2. elevator drive system according to claim 1, which is characterized in that first load bearing beam (2) and the second carrying
The other end of beam (3) is also embedded in wall.
3. elevator drive system according to claim 2, which is characterized in that first load bearing beam (2) and the second carrying
The both ends of beam (3) coat yielding rubber (9) and are embedded to afterwards in the wall.
4. elevator drive system according to claim 1, which is characterized in that first load bearing beam (2) and the second carrying
The other end of beam (3) is supported and is fixed on the crossbeam (12) in its both ends embedment wall.
5. elevator drive system according to claim 4, which is characterized in that further include the other end in one end embedment wall
The rope hitch plate supporting beam for supporting and being fixed on the crossbeam (12), the rope hitch plate supporting beam are fixed with lift car rope head plate (4)
With counterweight rope hitch plate (5), and the other end of first load bearing beam (2) and the second load bearing beam (3) and the crossbeam
(12) beam (10) is folded between.
6. elevator drive system according to claim 1, which is characterized in that the flange form traction machine (1) includes：
Rack,
With the fixed stator of the rack, and
The rotor being pivotally connected with the rack；
One of them described flange assembly is shaped in the rack, another described flange assembly is pivoted with the rotor
It connects, integrally formed with traction grooving on the rotor.
7. elevator drive system according to claim 1, which is characterized in that first load bearing beam (2) and the second carrying
Beam (3) is structure of steel product of the section in " C " font, "L" shaped or " I " fonts.
8. elevator drive system according to claim 1, which is characterized in that first load bearing beam (2) and the second carrying
Beam (3) is connected with each other by several connecting rods (11).
9. elevator drive system according to claim 1, which is characterized in that first load bearing beam (2) and the second carrying
Lift car rope head plate (4) and counterweight rope hitch plate (5) have been bolted to connection between beam (3).
10. elevator drive system according to claim 1, which is characterized in that be provided at least three on the directive wheel (6)
The grooving of circular ring shape, and the directive wheel (6) is in tilted layout and so that its top and bottom just misplaces a grooving cloth
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810831290.2A CN108792897A (en) | 2018-07-26 | 2018-07-26 | A kind of elevator drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810831290.2A CN108792897A (en) | 2018-07-26 | 2018-07-26 | A kind of elevator drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108792897A true CN108792897A (en) | 2018-11-13 |
Family
ID=64078238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810831290.2A Pending CN108792897A (en) | 2018-07-26 | 2018-07-26 | A kind of elevator drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108792897A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11814264B1 (en) * | 2022-11-21 | 2023-11-14 | Inventio Ag | Yoke assembly for suspending an elevator car or a counterweight in a shaft of an elevator |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001163550A (en) * | 1999-12-07 | 2001-06-19 | Hitachi Ltd | Elevator |
| US20020100902A1 (en) * | 2001-01-31 | 2002-08-01 | Zlatko Strbuncelj | Elevator hoist machine and related assembly method |
| JP2004292162A (en) * | 2003-02-04 | 2004-10-21 | Toshiba Elevator Co Ltd | Elevator |
| CN203143877U (en) * | 2013-03-22 | 2013-08-21 | 成都速捷电梯有限公司 | Elevator machine room arrangement structure |
| CN204938667U (en) * | 2015-08-13 | 2016-01-06 | 重庆威斯特电梯有限公司 | Towing machine erecting frame |
| CN205602927U (en) * | 2016-03-30 | 2016-09-28 | 西继迅达（许昌）电梯有限公司 | Integral type hauler and leading wheel fixing device |
| CN106115429A (en) * | 2016-08-30 | 2016-11-16 | 康力电梯股份有限公司 | A kind of sedan-chair frame girder structures |
| CN106477433A (en) * | 2015-09-02 | 2017-03-08 | 天津鑫宝龙电梯集团有限公司 | A kind of elevator traction machine supporting mechanism |
| CN107188007A (en) * | 2017-05-15 | 2017-09-22 | 上海三荣电梯制造有限公司 | A kind of combined type machine bed |
| CN207046650U (en) * | 2017-08-14 | 2018-02-27 | 苏州通润驱动设备股份有限公司 | A kind of traction machine and the home lift for being provided with the traction machine |
| CN207129802U (en) * | 2017-07-02 | 2018-03-23 | 广东高菱电梯有限公司 | A kind of synchro traction machine frame |
| CN208776165U (en) * | 2018-07-26 | 2019-04-23 | 洪革 | A kind of elevator drive system |
-
2018
- 2018-07-26 CN CN201810831290.2A patent/CN108792897A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001163550A (en) * | 1999-12-07 | 2001-06-19 | Hitachi Ltd | Elevator |
| US20020100902A1 (en) * | 2001-01-31 | 2002-08-01 | Zlatko Strbuncelj | Elevator hoist machine and related assembly method |
| JP2004292162A (en) * | 2003-02-04 | 2004-10-21 | Toshiba Elevator Co Ltd | Elevator |
| CN203143877U (en) * | 2013-03-22 | 2013-08-21 | 成都速捷电梯有限公司 | Elevator machine room arrangement structure |
| CN204938667U (en) * | 2015-08-13 | 2016-01-06 | 重庆威斯特电梯有限公司 | Towing machine erecting frame |
| CN106477433A (en) * | 2015-09-02 | 2017-03-08 | 天津鑫宝龙电梯集团有限公司 | A kind of elevator traction machine supporting mechanism |
| CN205602927U (en) * | 2016-03-30 | 2016-09-28 | 西继迅达（许昌）电梯有限公司 | Integral type hauler and leading wheel fixing device |
| CN106115429A (en) * | 2016-08-30 | 2016-11-16 | 康力电梯股份有限公司 | A kind of sedan-chair frame girder structures |
| CN107188007A (en) * | 2017-05-15 | 2017-09-22 | 上海三荣电梯制造有限公司 | A kind of combined type machine bed |
| CN207129802U (en) * | 2017-07-02 | 2018-03-23 | 广东高菱电梯有限公司 | A kind of synchro traction machine frame |
| CN207046650U (en) * | 2017-08-14 | 2018-02-27 | 苏州通润驱动设备股份有限公司 | A kind of traction machine and the home lift for being provided with the traction machine |
| CN208776165U (en) * | 2018-07-26 | 2019-04-23 | 洪革 | A kind of elevator drive system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11814264B1 (en) * | 2022-11-21 | 2023-11-14 | Inventio Ag | Yoke assembly for suspending an elevator car or a counterweight in a shaft of an elevator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205577444U (en) | Track is organized - trailing component of bed -jig conveying instrument system in advance | |
| CN103302645B (en) | Nacelle stand and method for assembling and testing a nacelle for a wind turbine | |
| CN208776165U (en) | A kind of elevator drive system | |
| CN108792897A (en) | A kind of elevator drive system | |
| CN208883351U (en) | A kind of lifting equipment | |
| CN211034837U (en) | Be applied to sedan-chair frame structure of taking single set of safety tongs on big load goods lift | |
| CN208200156U (en) | A kind of combined electric underhung crane | |
| CN202643086U (en) | Hoisting tool of hydroxylation reactor | |
| CN2775020Y (en) | Crane small cart | |
| CN213011602U (en) | Gantry tool for equipment installation and transportation | |
| CN114753620A (en) | Assembly type structure beam slab braced system based on flexible cable of pulley | |
| CN207108182U (en) | A kind of machine-roomless lift bearing beam device | |
| CN102561195A (en) | Assembled wire strand bracket | |
| CN201746232U (en) | Portal bridge crane and trolley thereof | |
| CN217461322U (en) | Half dismouting type installs elevator steelframe well additional | |
| CN205712478U (en) | The hybrid structure that a kind of steel lattice cylinder and Core Walls Structure and radial compliance rope dish form | |
| CN205873704U (en) | Portal crane prevent overtum equipment | |
| CN205294546U (en) | Elevator steel frame hoistway | |
| CN110329140A (en) | It is used to support the crossbeam of container and the vehicle with it | |
| CN108423548A (en) | A kind of combined electric underhung crane | |
| CN218665028U (en) | Special lifting appliance for heavy-duty automobile tire | |
| CN210598081U (en) | Integrally assembled scaffold support system | |
| CN217322968U (en) | Traction machine arrangement structure for elevator without machine room | |
| CN211769675U (en) | Main machine supporting device of large-load machine-room-less elevator | |
| CN207234293U (en) | A kind of cable laying corner sipes pulley |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |