CN101987711A - Tractor used for elevator - Google Patents
Tractor used for elevator Download PDFInfo
- Publication number
- CN101987711A CN101987711A CN2009100556420A CN200910055642A CN101987711A CN 101987711 A CN101987711 A CN 101987711A CN 2009100556420 A CN2009100556420 A CN 2009100556420A CN 200910055642 A CN200910055642 A CN 200910055642A CN 101987711 A CN101987711 A CN 101987711A
- Authority
- CN
- China
- Prior art keywords
- brake
- secured core
- installation portion
- mobile armature
- brake equipment
- 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.)
- Granted
Links
Images
Abstract
The invention relates to a tractor used for elevator, comprising a base, a stator, a rotor, a rotating frame, a spindle, a driving rope wheel, a braking device and a brake disk; wherein the base is provided with a stator mounting part of the stator, a spindle supporting part used for rotational support of the spindle, a braking device mounting part of the braking device and a cavity part which can contain the braking device, the brake disk and the braking device mounting part; the rotating frame is provided with a rotor mounting part of the rotor and a driving rope wheel mounting part of the driving rope wheel; the spindle is fixely connected with the rotating frame; the brake disk is fixedly connected with the rotor mounting part, and a braking force can be transmitted onto the rotating frame by virtue of the brake disk; the braking device is provided with a braking surface; and the stator and the rotor are oppositely arranged in the radial direction. The invention has the characteristics of simple structure, miniaturization, low cost and low noise.
Description
Technical field
The present invention relates to a kind of elevator hoist.
Background technology
Existing towing machine is as the disclosed elevator traction machine of Chinese invention patent (notification number CN1141775C).The electromagnet of this towing machine and brake control lever are arranged on the outside of towing machine, and act on by brake control lever on the brake wheel of towing machine outer rotor and produce braking force, thus the braking towing machine.The deficiency of this invention is: 1) because the brake wheel and the traction sheave of towing machine are positioned at the same side, and disposed adjacent, brake area is very easy to be subjected to the grease influence of steel rope like this, thereby causes the friction coefficient of brake area to reduce the influence of normal the bringing on a disaster property of operation of this elevator; 2) because drg is arranged on the outside of towing machine, the noise of drg directly externally transmits, thereby causes the noise of towing machine to increase, and towing machine is used in machine-roomless lift and will directly be had influence on the riding quality of elevator like this; 3) for reduce noise usually be with the gap between friction lining and the brake wheel be provided with very little, like this when acting on the brake wheel because of brake control lever, because the opening time of two brakings can not be consistent, so may cause brake wheel to stressed direction distortion, thereby cause another brake control lever to contact with brake wheel, thereby make the friction disc wear of another brake control lever, reduce the service life of brake control lever, and bring vibration and noise may for the operation of elevator; Simultaneously in order to guarantee that brake wheel and brake control lever have enough rigidity need design enough strong brake control lever and brake wheel, to increase the cost of towing machine like this, and, increase the moment requirement of towing machine, thereby further increase the cost of towing machine because the inertia of brake wheel increases; 4) because brake control lever and electromagnet are arranged on the outside of towing machine, cause the oad of towing machine to become big on the one hand, the axial dimension that comprises the needs of brake wheel, the height that electromagnet needs, influence the outward appearance of towing machine, this towing machine can not be applied on the machine-roomless lift product substantially, causes the parts of towing machine to increase on the other hand, the processing capacity of parts increases, and the cost of towing machine increases; 5) be installed on the rotor owing to magnet steel, and brake surface also is positioned on the rotor, when so brake control lever produces braking force to brake wheel, to produce impact to magnet steel, such impact will directly have influence on being connected of magnet steel and rotor, thereby may cause magnet steel to come off from rotor, cause serious accident, operation brings and seriously influences to elevator; 6),, be the twice that end face (two brake surfaces are arranged) brake braking force requires so the requirement of braking force is big because brake surface is the outside face of brake wheel.
In order to solve the noise problem of traction machine brake as described above, make the designs simplification and the miniaturization of towing machine, Chinese invention patent (notification number CN100335400C) discloses a kind of towing machine.The brake equipment of towing machine is arranged on the inside of towing machine fixed frame, and the brake axle of brake equipment acts on the brake surface of rotor and produces braking force, the braking towing machine.This invention is arranged on drg the inside of towing machine fixed frame, brake equipment is closed in the fixed frame simultaneously, the noise transmission that reduces brake equipment like this is to the outside of towing machine, and brake surface and rope sheave be separated out, and brake surface can not be subjected to the influence of steel rope grease.The weak point of this invention is: 1) for reduce noise usually be with the gap between brake axle and the brake surface be provided with very little, like this when acting on the brake surface because of brake axle, because two braking action times can not be consistent, so may cause the rotor installation portion to stressed direction distortion, thereby cause another brake axle to contact with brake surface, thereby make the friction disc wear of another brake axle, reduce the service life of brake axle, and bring vibration and noise may for the operation of elevator; Simultaneously in order to guarantee that the enough rigidity of brake surface need design enough strong rotor installation portion, the gauge that is the rotor installation portion increases, to increase the cost of towing machine like this, and because the inertia increase of rotor installation portion, increase the moment requirement of towing machine, thereby further increase the cost of towing machine; 2) even in order to guarantee the gap between brake axle and the brake surface, the necessary fine limit work of brake surface, cost of processing increases like this; 3) because the friction lining of brake axle often has abrasive dust to produce, these abrasive dusts probably drop on the brake surface, thereby the friction force instability that may cause brake equipment, normal operation generation to elevator has a strong impact on, so need clear up these abrasive dusts termly, or by anti-dandruff device these abrasive dusts are handled, do the work capacity that will increase maintenance and maintenance like this, increase the use cost of towing machine simultaneously; 4) be oppositely arranged on the rotation support frame because of brake surface and rotor installation portion, so when brake axle produces braking force to brake surface, also produce simultaneously and impact to rotor, such impact will directly have influence on rotor with the rotation support frame the rotor installation portion between be connected, cause rotor to come off from the rotation support frame, thereby cause serious accident, operation brings and seriously influences to elevator; 5) because brake surface is the inner circumferential surface of rotor installation portion,, be the twice of end face (two brake surfaces are arranged) brake equipment required braking force, increase the size and the cost of brake equipment, influence the scantling of structure of towing machine simultaneously so the requirement of braking force is big.
Summary of the invention
The objective of the invention is to above-mentioned deficiency, a kind of simple in structure, miniaturization, cost is low and noise is little elevator hoist are provided at prior art.
Elevator hoist of the present invention comprises support, stator, rotor, rotation framework, main shaft, driving rope sheave, brake equipment and brake disc; Described support has the stator installation portion of described stator, has the main shaft support portion that described main axis rotation supports, brake equipment installation portion with described brake equipment has the chamber portion that can hold described brake equipment, described brake disc, described brake equipment installation portion; Described rotation framework has the rotor installation portion of described rotor, has the driving rope sheave installation portion of described driving rope sheave; Described main shaft is captiveed joint with described rotation framework; Described main shaft to small part stretches into described chamber portion; Described brake disc is connected with the partial fixing that described main shaft stretches into chamber portion, and connecting brake disc by this can be with brake-force transmission to main shaft; Described brake equipment is connected movably with the brake equipment installation portion; Described stator and described rotor are oppositely arranged in radial direction.
Another elevator hoist of the present invention, it comprises support, stator, rotor, rotation framework, main shaft, driving rope sheave, brake equipment and brake disc; Described support has the stator installation portion of described stator, has the main shaft support portion that described main axis rotation supports, brake equipment installation portion with described brake equipment has the chamber portion that can hold described brake equipment, described brake disc, described brake equipment installation portion; Described rotation framework has the rotor installation portion of described rotor, has the driving rope sheave installation portion of described driving rope sheave; Described main shaft is captiveed joint with described rotation framework; Described brake disc moves axially with described rotor installation portion and is connected, and connecting brake disc by this can be with brake-force transmission on described rotation framework; Described stator and described rotor are oppositely arranged in radial direction.
Adopt the elevator hoist of said structure, more existing elevator hoist has following characteristics: 1) described brake equipment is by the braking brake disc, give the rotation framework with brake-force transmission, glancing impact can not cause radial impact to described rotor like this, to described rotor and being connected of described rotation framework producing smaller influence, guarantee the safety of elevator hoist; 2) because described brake surface can not be subjected to the influence of brake strip abrasive dust, so braking force keeps stable; 3) described brake equipment is positioned at the inside of actuating device support, thus the noise of brake equipment can not transmit out substantially, thereby guarantee the quality of elevator hoist, the noise of elevator hoist is little; The oad of whole elevator hoist is little simultaneously, compact conformation; 4) described brake equipment has two brake strips, thereby can reduce the requirement of the braking force of brake equipment, reduces the cost of brake equipment, and the scantling of structure of brake equipment can not influence the structure design of elevator hoist simultaneously; 5) described brake equipment is connected movably with the brake equipment installation portion, so can not exist brake equipment to move when inconsistent, the braking maneuver of described brake equipment influences each other; 6) described driving rope sheave and brake surface are kept apart fully, and described brake surface can not be subjected to the grease influence of steel rope, can not be subjected to the influence to friction face of extraneous dust or air humidity simultaneously yet.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is the first embodiment of the invention scheme drawing;
Fig. 2 is the second embodiment of the invention scheme drawing;
The specific embodiment
First kind of embodiment of the present invention as shown in Figure 1, elevator hoist comprises driving rope sheave 1, rotation framework 2, rotor 3, support 4, stator 5, main shaft 19, brake disc 8 and brake equipment, and brake equipment comprises secured core 10, mobile armature 16, magnet coil 11, spring 12, installation shaft 15.Described support 4 comprises stator installation portion 4a, the 4b of main shaft support portion, and brake equipment installation portion 4c can hold the 4d of chamber portion of described brake equipment, described brake disc 8, described brake equipment installation portion 4c.Rotation framework 2 comprises rotor installation portion 2a, drives rope sheave installation portion 2b, and main shaft 19 is fixed together with rotation framework 2.Described main shaft 19 is connected with the 4b of main shaft support portion with bearing 7 rotatably by bearing 6.Described brake disc 8 captives joint 20 with described rotor installation portion 2a, and connecting 20 brake discs 8 by this can be delivered to described rotation framework 2 with the drag friction power that brake equipment produces.
Elevator hoist as described in Figure 1, support 4 is permanently connected stator 5 together by stator installation portion 4a, and by the 4b of main shaft support portion and two bearings 6, bearing 7, support 4 links together rotatably with main shaft 19.The 4d of chamber portion of support 4 is provided with brake equipment installation portion 4c.The secured core 10 of brake equipment, mobile armature 16, magnet coil 11, installation shaft 15 and brake disc 8 are arranged in the 4d of chamber portion of support 4.Certainly secured core 10, mobile armature 16, magnet coil 11, installation shaft 15 and the brake disc 8 of brake equipment also can partly be arranged in the 4d of chamber portion of support 4.The 4d of chamber portion forms an osed top installing space by support cover plate 18, and the secured core 10 of brake equipment, mobile armature 16, magnet coil 11, installation shaft 15 and brake disc 8 are positioned at described installing space.The described chamber 4d of portion is positioned at the inside of described stator installation portion 4a, and the described chamber 4d of portion partly is positioned at the inside of described rotor 3.
Rotate framework 2 as described in Figure 1 and be permanently connected together, captive joint with described driving rope sheave 1 by driving rope sheave installation portion 2b by rotor installation portion 2a and described rotor 3.Main shaft 19 is permanently connected with described rotation framework 2.Main shaft 19 is connected with coder axle 13 near the end of the 4d of chamber portion, and coder 14 is connected rotationally with coder axle 13.Described rotor 3 and described stator 5 are oppositely arranged in radial direction.The support 4 of described elevator hoist is provided with a shrouding 17, by shrouding 17 stator 5 and rotor 3 is enclosed in the space.Stator 5 and rotor 3 can not be subjected to the influence of external environment condition like this.The described main shaft support 4b of portion partly stretches into the inside that drives rope sheave 1.Described rotor installation portion 2a is positioned at the inside of stator installation portion 4a.Certainly stator installation portion 4a also can be designed to be positioned at the inside of rotor installation portion 2a.In order to simplify the number of parts of elevator hoist, drive rope sheave 1, main shaft 9 and 2 integrated designs of rotation framework.
The secured core 10 of brake equipment is connected with brake equipment installation portion 4c movably by two installation shaft 15 as described in Figure 1.Mobile armature 16 is connected movably with two installation shaft 15.Brake disc 8 is between brake equipment and brake equipment installation portion 4c.Brake disc 8 both ends of the surface have friction lining 9 respectively.Elevator hoist of the present invention has two brake equipments.Two brake equipment floor plan.Coder 14 is arranged on the midway location of two brake equipments.The mobile armature 16 of brake equipment has brake surface 16a, and secured core 10 has brake surface 10a.Mobile armature 16 is positioned at the inside of secured core 10.
Has the said structure elevator hoist, its structure is very simple, safe and reliable, described support 4 has rotary supporting part 4b, the brake equipment installation portion 4c of stator installation portion 4a, main shaft 19, can hold the 4d of chamber portion of described brake equipment, described brake disc 8, described brake equipment installation portion 4c; Described rotation framework 2 has the rope sheave of driving installation portion 2b, rotor installation portion 2a; Described brake surface 10a and 16a and driving rope sheave 1 are kept apart fully.The component part of elevator hoist is few, simple in structure so on the one hand; On the other hand owing to have the 4d of chamber portion, hold brake equipment, brake disc 8, brake equipment installation portion 4c, brake equipment is positioned at the inside of cavity 4d fully like this, or brake equipment partly is positioned at the inside of cavity 4d, support cover plate 18 forms an osed top installing space with the 4d of chamber portion simultaneously, so the brake noise of elevator hoist of the present invention can not transmitted out substantially, described brake surface 10a and 16a can not be subjected to the influence of steel rope grease, also can not be subjected to simultaneously the influence of external environment, humidity of dust and air etc. for example, thereby the stay in grade that guarantees elevator hoist is reliable, the noise of elevator hoist is little, oad is little, especially axial dimension can do little, compact conformation.Littler for what the axial dimension of elevator hoist can be done, the described chamber 4d of portion is positioned at the inside of described rotor installation portion 2a to small part, is positioned at the inside of stator installation portion 4a simultaneously at least; The described in addition main shaft support 4b of portion stretches into the inside that drives rope sheave 1 to small part.The 4b of main shaft support portion stretches into the inside that drives rope sheave 1 to small part, also can be so that the length of the cantilever support of main shaft 19 is short, thus can reduce the requirement of strength of main shaft 19.
As shown in Figure 1 as can be known, the brake surface 10a and the 16a of brake equipment, with support 4 be different structure, whole like this elevator hoist is simple in structure, can save the supporting construction of brake surface 10a and 16a, can save cost.Because brake surface 10a and 16a are positioned on the brake equipment fully, so do not need rotor installation portion 2a is had the requirement of any strength and stiffness.Two brake equipment horizontal distribution of described elevator hoist, brake equipment will make full use of radial space and the axial space of cavity 4d like this, guarantee brake equipment substantially to the scantling of structure of support 4 without any influence.Because of the brake surface 10a and the 16a of two brake equipments is complete independence, so the braking maneuver of two brake equipments can not influence each other, can not exist brake equipment to move when inconsistent, the braking maneuver of described brake equipment influences each other.Described brake disc 8 is between brake equipment and brake equipment installation portion 4c, simultaneously between brake surface 10a and 16a, have two brake strips 9, the requirement of brake equipment braking force can reduce half like this, thereby the size of brake equipment can reduce, cost can reduce simultaneously, so the structure design of elevator hoist is freer.Because it is described brake surface 10a and 16a can not adhere to the abrasive dust of brake strip 9, stable thereby braking force keeps.Braking force is to act on the brake equipment in addition, by brake equipment with brake-force transmission to support 4, braking force is by braking brake disc 8 simultaneously, brake-force transmission is given on the rotation framework 2, be delivered to again and drive on the rope sheave 1, glancing impact can not cause radial impact to described rotor 3 like this, to described rotor 3 and being connected of described rotation framework 2 producing smaller influence, guarantees the safety of elevator hoist.
Second kind of embodiment of the present invention as shown in Figure 2.Be that with first kind of embodiment difference of the present invention secured core 10 has friction lining 9b, mobile armature 16 has friction lining 9a, and brake disc 8 has two brake surface 8a and 8b.The benefit of doing like this be the material of friction lining can do littler, thereby reduce the cost of friction lining.
Certainly, in the embodiment as depicted in figs. 1 and 2, the secured core 10 of brake equipment can be captiveed joint with two installation shaft 15, and brake disc 8 can be connected with main shaft 19 with moving axially, so also forms elevator hoist protection scheme of the present invention.
Claims (14)
1. elevator hoist, it comprises support, stator, rotor, rotation framework, main shaft, driving rope sheave, brake equipment and brake disc, it is characterized in that: described support has the stator installation portion of described stator, has the main shaft support portion that described main axis rotation supports, brake equipment installation portion with described brake equipment has the chamber portion that can hold described brake equipment, described brake disc, described brake equipment installation portion; Described rotation framework has the rotor installation portion of described rotor, has the driving rope sheave installation portion of described driving rope sheave; Described main shaft is captiveed joint with described rotation framework; Described brake disc is captiveed joint with described rotor installation portion, and connecting brake disc by this can be with brake-force transmission on described rotation framework; Described brake equipment has brake surface; Described stator and described rotor are oppositely arranged in radial direction.
2. elevator hoist, it comprises support, stator, rotor, rotation framework, main shaft, driving rope sheave, brake equipment and brake disc, it is characterized in that: described support has the stator installation portion of described stator, has the main shaft support portion that described main axis rotation supports, brake equipment installation portion with described brake equipment has the chamber portion that can hold described brake equipment, described brake disc, described brake equipment installation portion; Described rotation framework has the rotor installation portion of described rotor, has the driving rope sheave installation portion of described driving rope sheave; Described main shaft is captiveed joint with described rotation framework; Described brake disc moves axially with described rotor installation portion and is connected, and connecting brake disc by this can be with brake-force transmission on described rotation framework; Described stator and described rotor are oppositely arranged in radial direction.
3. elevator hoist as claimed in claim 1 or 2 is characterized in that: described chamber portion is positioned at the inside of described rotor installation portion to small part.
4. elevator hoist as claimed in claim 1 or 2 is characterized in that: described chamber portion is positioned at the inside of described stator installation portion at least.
5. elevator hoist as claimed in claim 1 or 2 is characterized in that: described rotor installation position is in the inside of described stator installation portion.
6. elevator hoist as claimed in claim 1 or 2 is characterized in that: described main shaft support portion to small part stretches into the inside that drives rope sheave.
7. elevator hoist as claimed in claim 1 or 2 is characterized in that: described chamber portion captives joint with the cover plate on being installed in described support, forms an osed top installing space.
8. elevator hoist as claimed in claim 7 is characterized in that: described brake equipment, brake equipment installation portion, brake disc are positioned at described installing space.
9. elevator hoist as claimed in claim 1 or 2 is characterized in that: described brake equipment to small part is positioned at described chamber portion.
10. as arbitrary described elevator hoist in the claim 1～9, it is characterized in that: described brake disc is between described brake equipment and described brake equipment installation portion.
11. elevator hoist as claimed in claim 1 is characterized in that: described brake equipment has secured core and mobile armature; Described secured core is connected with the brake equipment installation portion by at least two installation shaft; Described mobile armature is connected with installation shaft movably with secured core; Described mobile armature is positioned at the inside of secured core; Described secured core and mobile armature have brake surface; Described brake disc is between secured core and mobile armature, simultaneously between the brake surface of secured core and mobile armature; The end face that described brake disc and secured core and mobile armature are adjacent has friction lining.
12. elevator hoist as claimed in claim 1 is characterized in that: described brake equipment has secured core and mobile armature; Described secured core is connected with the brake equipment installation portion by at least two installation shaft; Described mobile armature is connected with installation shaft movably with secured core; Described mobile armature is positioned at the inside of secured core; Described brake disc is between secured core and mobile armature; On the adjacent end face of described secured core and mobile armature and brake disc friction lining is arranged; The end face that described brake disc and secured core and mobile armature are adjacent is a friction face.
13. elevator hoist as claimed in claim 2 is characterized in that: described brake equipment has secured core and mobile armature; Described secured core is connected with the brake equipment installation portion by at least two installation shaft; Described mobile armature is connected movably with installation shaft, and described secured core is captiveed joint with installation shaft; Described mobile armature is positioned at the inside of secured core; Described secured core and mobile armature have brake surface; Described brake disc is between secured core and mobile armature, simultaneously between the brake surface of secured core and mobile armature; The end face that described brake disc and secured core and mobile armature are adjacent has friction lining.
14. elevator hoist as claimed in claim 2 is characterized in that: described brake equipment has secured core and mobile armature; Described secured core is connected with the brake equipment installation portion by at least two installation shaft; Described mobile armature is connected movably with installation shaft, and described secured core is captiveed joint with installation shaft; Described mobile armature is positioned at the inside of secured core; Described brake disc is between secured core and mobile armature; On the adjacent end face of described secured core and mobile armature and brake disc friction lining is arranged; The end face that described brake disc and secured core and mobile armature are adjacent is a friction face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910055642 CN101987711B (en) | 2009-07-30 | 2009-07-30 | Tractor used for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910055642 CN101987711B (en) | 2009-07-30 | 2009-07-30 | Tractor used for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101987711A true CN101987711A (en) | 2011-03-23 |
| CN101987711B CN101987711B (en) | 2013-02-13 |
Family
ID=43744532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910055642 Expired - Fee Related CN101987711B (en) | 2009-07-30 | 2009-07-30 | Tractor used for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101987711B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI109596B (en) * | 1997-01-23 | 2002-09-13 | Kone Corp | Lift and lift drive machinery |
| JP3725979B2 (en) * | 1998-07-07 | 2005-12-14 | 株式会社日立製作所 | Elevator equipment |
| JP4437784B2 (en) * | 2003-08-05 | 2010-03-24 | 三菱電機株式会社 | Elevator hoisting machine |
| JP5070912B2 (en) * | 2007-04-10 | 2012-11-14 | 株式会社日立製作所 | Elevator hoisting machine |
| CN101117193A (en) * | 2007-08-02 | 2008-02-06 | 沈阳博林特电梯有限公司 | Gearless permanent-magnetic synchro traction machine |
| CN201180050Y (en) * | 2008-04-18 | 2009-01-14 | 镇江美佳马达有限公司 | Driving gear for elevator |
| CN201538629U (en) * | 2009-09-08 | 2010-08-04 | 包文丽 | Traction machine for elevator |
-
2009
- 2009-07-30 CN CN 200910055642 patent/CN101987711B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101987711B (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU696150B2 (en) | Integrated elevator drive machine and brake assembly | |
| CN102311065B (en) | Electromagnetic disc brake with antifriction device | |
| JP2000016727A (en) | Elevator device | |
| CN104955758A (en) | Machine for driving a lift | |
| JP2016037336A (en) | Elevator device and hoist for elevator device | |
| JP2010235266A (en) | Thin type hoisting machine and driving motor for thin type hoisting machine | |
| CN201538630U (en) | Drive device of elevator | |
| CN201538629U (en) | Traction machine for elevator | |
| CN101955114B (en) | Tractor | |
| CN201580872U (en) | Tractor | |
| CN105314562B (en) | Winch for elevator | |
| KR100597523B1 (en) | Traction machine for elevator | |
| CN201545582U (en) | Elevator driving device | |
| CN201545580U (en) | Elevator driving device | |
| CN201545579U (en) | Elevator driving device | |
| CN105775970A (en) | Elevator tractor and elevator tractor assembling method | |
| CN201545581U (en) | Elevator traction machine | |
| CN101987711B (en) | Tractor used for elevator | |
| CN201553521U (en) | Driving device for lift | |
| JP4476809B2 (en) | Elevator drive device | |
| CN201647775U (en) | Elevator traction machine | |
| JP5048802B2 (en) | Thin hoisting machine for elevator and elevator device | |
| CN101993001B (en) | Elevator drive device | |
| CN101941629B (en) | Elevator driving device | |
| JP4938973B2 (en) | Drive unit without engine frame for elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Bao Wenli Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |