CN113830641B - Up-going overspeed protection device - Google Patents
Up-going overspeed protection device Download PDFInfo
- Publication number
- CN113830641B CN113830641B CN202111078978.6A CN202111078978A CN113830641B CN 113830641 B CN113830641 B CN 113830641B CN 202111078978 A CN202111078978 A CN 202111078978A CN 113830641 B CN113830641 B CN 113830641B
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- Prior art keywords
- wire rope
- steel wire
- traction
- fixing device
- supporting
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
- 238000003466 welding Methods 0.000 claims 2
- 238000004804 winding Methods 0.000 abstract description 5
- 230000001174 ascending effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/185—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by acting on main ropes or main cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses an uplink overspeed protection device, which comprises a spandrel girder assembly, wherein a traction machine is arranged on the spandrel girder assembly, the traction machine comprises a traction wheel, and a traction steel wire rope is arranged on the traction wheel; a first supporting device is arranged below the traction sheave, a first fixing device is arranged at the bottom of the first supporting device, and a first steel wire rope brake is arranged at the bottom of the first fixing device; a second supporting device is arranged below the first fixing device, a second fixing device is arranged at the bottom of the second supporting device, and a second steel wire rope brake is arranged at the bottom of the second fixing device; the first steel wire rope brake comprises a first rope clamping plate, the second steel wire rope brake comprises a second rope clamping plate, and the traction steel wire rope sequentially passes through the first rope clamping plate and the second rope clamping plate. The invention does not need to increase the rope winding ratio of the whole ladder, is convenient to maintain, and solves the problem of large-scale cargo transportation of high-rise buildings safely and reliably.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an uplink overspeed protection device.
Background
The more and more high-rise buildings, the more and more important are elevators specially designed for transporting goods. A large load elevator is required for the transportation of large goods or weights. At present, a worm gear traction machine is adopted in a cargo lift in the market, and is limited by the traction machine and an uplink overspeed protection device, in order to increase the carrying capacity, the rope winding ratio is increased in a mode of 4:1, 6:1, 8:1 … and the like, but the carrying capacity of the cargo lift in the mode is increased, and the lifting height is reduced, so that the transportation requirement of a high-rise building cannot be met conveniently. The hoisting height can meet the requirement when the roping ratio is 2:1 or 1:1, and the traction machine also has, but the maximum load allowed by the general upward overspeed device in the market can not meet the requirement. When the lifting height is high, firstly, the weight of the traction steel wire rope is increased, so that the weight of the traction steel wire rope and the weight of the car are unbalanced, and calculation cannot be satisfied; secondly, the winding ratio is increased, the number of the diverting pulleys is increased, the number of reverse bending times is increased when the steel wire rope winds around the diverting pulleys for a plurality of times, the noise of the steel wire rope friction diverting pulleys during operation is increased, and the service life of the steel wire rope is shortened. Therefore, a high-rise building cargo transportation requires a large load while a low roping ratio cargo lift.
Disclosure of Invention
Aiming at the technical problems, the invention aims at: the up overspeed protection device has the characteristics of large carrying capacity, convenient installation and maintenance, safety and reliability, and can meet the up overspeed protection requirement of the low-roping-ratio large-load elevator.
In order to achieve the above purpose, the present invention provides the following technical solutions:
An uplink overspeed protection device comprises a spandrel girder assembly, wherein a traction machine is arranged on the spandrel girder assembly, the traction machine comprises a traction wheel, and a traction steel wire rope is arranged on the traction wheel; a first supporting device is arranged below the traction sheave, a first fixing device is arranged at the bottom of the first supporting device, and a first steel wire rope brake is arranged at the bottom of the first fixing device; a second supporting device is arranged below the first fixing device, a second fixing device is arranged at the bottom of the second supporting device, and a second steel wire rope brake is arranged at the bottom of the second fixing device; the first steel wire rope brake comprises a first rope clamping plate, the second steel wire rope brake comprises a second rope clamping plate, and the traction steel wire rope sequentially passes through the first rope clamping plate and the second rope clamping plate.
Preferably, the first wire rope brake and the second wire rope brake are electric triggering type wire rope brakes, and the first wire rope brake and the second wire rope brake are connected in series in the same circuit.
Preferably, the first supporting device is welded with the spandrel girder assembly, the first supporting device is connected with the first fixing device through bolts, the second supporting device is welded with the spandrel girder assembly, and the second supporting device is connected with the second fixing device through bolts.
Preferably, the spandrel girder assembly comprises two sections of spandrel girders which are horizontally arranged in parallel, the second supporting device comprises two sections of supporting section steel which are horizontally arranged in parallel, the supporting section steel is perpendicular to the spandrel girders, and two ends of the supporting section steel are respectively connected with the two sections of spandrel girders.
Preferably, the second fixing device comprises two sections of fixing section steel which are horizontally arranged in parallel, the fixing section steel is perpendicular to the supporting section steel, and two ends of the fixing section steel are respectively connected with the two sections of the supporting section steel.
Preferably, the traction wire rope passes between two sections of fixed profile steel.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
The invention discloses a traction sheave of an ascending overspeed protection device, wherein a first supporting device is arranged below the traction sheave of the ascending overspeed protection device, a first fixing device is arranged at the bottom of the first supporting device, a first steel wire rope brake is arranged at the bottom of the first fixing device, a second supporting device is arranged below the first fixing device, a second fixing device is arranged at the bottom of the second supporting device, a second steel wire rope brake is arranged at the bottom of the second fixing device, the first steel wire rope brake comprises a first rope clamping plate, the second steel wire rope brake comprises a second rope clamping plate, a traction steel wire rope sequentially passes through the first rope clamping plate and the second rope clamping plate, the maximum load allowed by the ascending overspeed protection device is increased by adopting a mode of overlapping a plurality of steel wire rope brakes, the rope winding ratio of an entire ladder is not required to be increased, the weight of the traction steel wire rope is not required to be increased, a reverse rope pulley is not required to be increased, the installation is simple, the traction sheave is convenient to maintain, and the problem of large-scale cargo transportation of a high-rise building is safely and reliably solved.
Drawings
The technical scheme of the invention is further described below with reference to the accompanying drawings:
FIG. 1 is a front view of an uplink overspeed protection apparatus of the present invention;
FIG. 2 is a side view of the present invention in an up-going overspeed protection apparatus;
FIG. 3 is a bottom view of the omitted part of the structure of the ascending overspeed protection apparatus of the present invention.
Wherein: 1. a spandrel girder assembly; 11. a spandrel girder; 2. a traction machine; 21. traction sheave; 3. dragging the steel wire rope; 4. a first support device; 5. a first fixing device; 6. a first wire rope brake; 61. a first rope clamping plate; 7. a second support device; 71. supporting the section steel; 8. a second fixing device; 81. fixing the section steel; 9. a second wire rope brake; 91. and a second rope clamping plate.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components 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. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
The invention discloses an ascending overspeed protection device, which is shown in fig. 1 and comprises a spandrel girder assembly 1, wherein a traction machine 2 is arranged on the spandrel girder assembly 1 and is used for conveying and transmitting power to enable an elevator to run. The traction machine 2 comprises a traction sheave 21, a traction steel wire rope 3 is wound on the traction sheave 21, the traction steel wire rope 3 is connected with the car and the counterweight device, and is driven by the traction machine 2 to enable the car to lift, and the traction machine carries the weight of the car, the weight of the counterweight device, the rated load capacity and the sum of driving force and braking force.
A first supporting device 4 is arranged below the traction sheave 21, a first fixing device 5 is arranged at the bottom of the first supporting device 4, and a first wire rope brake 6 is arranged at the bottom of the first fixing device 5. A second supporting device 7 is arranged below the first fixing device 5, a second fixing device 8 is arranged at the bottom of the second supporting device 7, and a second steel wire rope brake 9 is arranged at the bottom of the second fixing device 8. The first wire rope brake 6 comprises a first rope clamping plate 61, the second wire rope brake 9 comprises a second rope clamping plate 91, and the traction wire rope 3 sequentially passes through the first rope clamping plate 61 and the second rope clamping plate 91, so that timely braking is facilitated.
The first supporting device 4 is welded with the spandrel girder assembly 1, the first supporting device 4 is connected with the first fixing device 5 through bolts, the second supporting device 7 is welded with the spandrel girder assembly 1, the second supporting device 7 is connected with the second fixing device 8 through bolts, and the spandrel girder assembly is easy to replace when being damaged in subsequent maintenance.
As shown in fig. 3, the spandrel girder assembly 1 includes two sections of spandrel girders 11 horizontally arranged in parallel, the second supporting device 7 includes two sections of supporting section steel 71 horizontally arranged in parallel, the supporting section steel 71 is perpendicular to the spandrel girders 11, and two ends of the supporting section steel 71 are respectively connected with the two sections of spandrel girders 11, so that the connection is more stable. The second fixing device 8 comprises two sections of fixing section steel 81 which are horizontally arranged in parallel, the fixing section steel 81 is perpendicular to the supporting section steel 71, two ends of the fixing section steel 81 are respectively connected with the two sections of supporting section steel 71, and the traction steel wire rope 3 passes through the space between the two sections of fixing section steel 81. The first support means 4 and the first fixing means 5 are of the same construction as the second support means 7 and the second fixing means 8, forming a stable frame.
The first steel wire rope brake 6 and the second steel wire rope brake 9 are electric trigger type steel wire rope brakes, and the first steel wire rope brake 6 and the second steel wire rope brake 9 are connected in series in the same circuit, so that the load capacity is increased. The speed detection device of the elevator gives an uplink overspeed signal to trigger the two steel wire rope brakes to act simultaneously, so that uplink overspeed protection is realized. After the elevator system feeds back an uplink overspeed signal, the two steel wire rope brakes can synchronously act, the braking force of the whole system is effectively halved, and if the elevator system adopts a mechanical type, the action synchronism can not be ensured, and the possibility that the steel wire rope brake which acts first is pulled out exists.
Before assembly, the first supporting device 4 and the first fixing device 5 are connected by bolts and nuts according to the positions of the reserved mounting holes on the supporting section steel and the fixed section steel on the ground, the first supporting device and the first fixing device are pre-tightened, and then the first steel wire rope brake 6 is connected to the first fixing device 5 by bolts, and the first steel wire rope brake is pre-tightened; similarly, the second supporting device 7 and the second fixing device 8 are connected together, and are connected by bolts and nuts according to the positions of the reserved mounting holes on the section steel, and the second steel wire rope brake 9 is connected to the second fixing device 8, and is pre-tightened. The first rope clamping plate 61 of the first wire rope brake 6 and the second rope clamping plate 91 of the second wire rope brake 9 are released until the hoisting wire rope 3 can pass. The assembled parts are lifted by the lifting device in an inverted mode and moved to the middle of the spandrel girder assembly 1, the positions of the assembled parts are adjusted according to the positions of the traction steel wire ropes 3, the traction steel wire ropes 3 are guaranteed to pass through the middle of the first rope clamping plate 61 and the second rope clamping plate 91, and finally the first supporting device 4 and the second supporting device 7 are welded on the spandrel girder assembly 1. The installation position is adjusted according to the field condition, the required precision is small, and the installation is easy.
The invention increases the maximum load allowed by the upward overspeed protection device by adopting a mode of superposing a plurality of steel wire rope brakes, does not need to increase the rope winding ratio of the whole ladder, does not cause the weight increase of the traction steel wire rope, does not need to increase a diverting pulley, has simple installation and convenient maintenance, and solves the problem of large-scale cargo transportation of high-rise buildings safely and reliably.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (3)
1. An uplink overspeed protection device, which is characterized in that: the traction machine comprises a bearing beam assembly, wherein a traction machine is arranged on the bearing beam assembly, the traction machine comprises a traction wheel, and a traction steel wire rope is arranged on the traction wheel; a first supporting device is arranged below the traction sheave, a first fixing device is arranged at the bottom of the first supporting device, and a first steel wire rope brake is arranged at the bottom of the first fixing device; a second supporting device is arranged below the first fixing device, a second fixing device is arranged at the bottom of the second supporting device, and a second steel wire rope brake is arranged at the bottom of the second fixing device; the first steel wire rope brake comprises a first rope clamping plate, the second steel wire rope brake comprises a second rope clamping plate, and the traction steel wire rope sequentially passes through the first rope clamping plate and the second rope clamping plate; the first steel wire rope brake and the second steel wire rope brake are electric triggering type steel wire rope brakes, and are connected in series in the same circuit; the first supporting device is connected with the spandrel girder assembly in a welding way, the first supporting device is connected with the first fixing device through bolts, the second supporting device is connected with the spandrel girder assembly in a welding way, and the second supporting device is connected with the second fixing device through bolts; the bearing beam assembly comprises two sections of bearing beams which are horizontally arranged in parallel, the second supporting device comprises two sections of supporting section steel which is horizontally arranged in parallel, the supporting section steel is perpendicular to the bearing beams, and two ends of the supporting section steel are respectively connected with the two sections of bearing beams.
2. The uplink overspeed protection apparatus of claim 1, wherein: the second fixing device comprises two sections of fixing section steel which are horizontally arranged in parallel, the fixing section steel is perpendicular to the supporting section steel, and two ends of the fixing section steel are respectively connected with the two sections of the supporting section steel.
3. The uplink overspeed protection apparatus of claim 2, wherein: the traction steel wire rope passes through the space between the two sections of fixed section steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111078978.6A CN113830641B (en) | 2021-09-15 | 2021-09-15 | Up-going overspeed protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111078978.6A CN113830641B (en) | 2021-09-15 | 2021-09-15 | Up-going overspeed protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113830641A CN113830641A (en) | 2021-12-24 |
| CN113830641B true CN113830641B (en) | 2024-05-07 |
Family
ID=78959266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111078978.6A Active CN113830641B (en) | 2021-09-15 | 2021-09-15 | Up-going overspeed protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113830641B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2680635Y (en) * | 2004-03-04 | 2005-02-23 | 河北东方机械厂 | Steel rope cramp |
| CN202272598U (en) * | 2011-09-23 | 2012-06-13 | 广东台日电梯有限公司 | Ceiling ejection preventing protection device for elevator car |
| WO2015089976A1 (en) * | 2013-12-20 | 2015-06-25 | 康力电梯股份有限公司 | Traction driving apparatus for domestic elevator |
| CN105084184A (en) * | 2015-08-13 | 2015-11-25 | 重庆威斯特电梯有限公司 | Tractor rack |
| CN215974476U (en) * | 2021-09-15 | 2022-03-08 | 康力电梯股份有限公司 | Uplink overspeed protection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5383664B2 (en) * | 2008-04-15 | 2014-01-08 | 三菱電機株式会社 | Elevator equipment |
| NZ704904A (en) * | 2010-12-17 | 2015-03-27 | Inventio Ag | Lift installation comprising car and counterweight |
-
2021
- 2021-09-15 CN CN202111078978.6A patent/CN113830641B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2680635Y (en) * | 2004-03-04 | 2005-02-23 | 河北东方机械厂 | Steel rope cramp |
| CN202272598U (en) * | 2011-09-23 | 2012-06-13 | 广东台日电梯有限公司 | Ceiling ejection preventing protection device for elevator car |
| WO2015089976A1 (en) * | 2013-12-20 | 2015-06-25 | 康力电梯股份有限公司 | Traction driving apparatus for domestic elevator |
| CN105084184A (en) * | 2015-08-13 | 2015-11-25 | 重庆威斯特电梯有限公司 | Tractor rack |
| CN215974476U (en) * | 2021-09-15 | 2022-03-08 | 康力电梯股份有限公司 | Uplink overspeed protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113830641A (en) | 2021-12-24 |
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