CN113830641A - Uplink overspeed protection device - Google Patents
Uplink overspeed protection device Download PDFInfo
- Publication number
- CN113830641A CN113830641A CN202111078978.6A CN202111078978A CN113830641A CN 113830641 A CN113830641 A CN 113830641A CN 202111078978 A CN202111078978 A CN 202111078978A CN 113830641 A CN113830641 A CN 113830641A
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- Prior art keywords
- wire rope
- steel wire
- supporting
- traction
- fixing device
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 83
- 239000010959 steel Substances 0.000 claims abstract description 83
- 238000011144 upstream manufacturing Methods 0.000 claims 6
- 238000004804 winding Methods 0.000 abstract description 7
- 230000001174 ascending effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
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- 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
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- 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 bearing beam assembly, wherein a tractor is arranged on the bearing beam assembly, the tractor comprises a traction sheave, and a traction steel wire rope is arranged on the traction sheave; 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 penetrates 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 safely and reliably solves the problem of large-scale cargo transportation of high-rise buildings.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an ascending overspeed protection device.
Background
High-rise buildings are increasing and elevators specially adapted for transporting goods are also receiving more attention. Large load lifts are required for the transportation of large cargo or heavy objects. At present, goods ladders on the market mostly adopt worm and gear traction machines, are limited by the traction machines and an uplink overspeed protection device, and can increase the load capacity by increasing the rope winding ratio, such as 4:1, 6:1, 8:1 … and the like. The hoisting height can meet the requirement when the rope winding ratio is 2:1 or 1:1, and the traction machine is also provided, but the maximum load capacity allowed by the universal ascending overspeed device on the market cannot meet the requirement. In such a way, 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 is unbalanced with the weight of the lift car, and the calculation cannot be met; secondly, the rope winding ratio is increased, the number of the diversion sheaves is increased, the steel wire rope winds the diversion sheaves for many times, the reverse bending times are increased, the noise of the steel wire rope friction diversion sheaves in operation is increased, and the service life of the steel wire rope is shortened. Therefore, for the cargo transportation of high-rise buildings, a cargo lift with large load capacity and low rope winding ratio is needed.
Disclosure of Invention
In view of the above technical problems, the present invention aims to: the upward overspeed protection device has the characteristics of large carrying capacity, convenience in installation and maintenance, safety and reliability, and can meet the upward overspeed protection requirement of a low-rope-winding-ratio large-load elevator.
In order to achieve the purpose, the invention provides the following technical scheme:
an uplink overspeed protection device comprises a bearing beam assembly, wherein a traction machine is arranged on the bearing beam assembly, the traction machine comprises a traction sheave, and a traction steel wire rope is arranged on the traction sheave; 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 penetrates through the first rope clamping plate and the second rope clamping plate.
Preferably, the first and second wire rope brakes are both electrically triggered wire rope brakes, and the first and second wire rope brakes are connected in series in the same circuit.
Preferably, the first supporting device is connected with the bearing beam assembly in a welded mode, the first supporting device is connected with the first fixing device through bolts, the second supporting device is connected with the bearing beam assembly in a welded mode, and the second supporting device is connected with the second fixing device through bolts.
Preferably, the spandrel girder assembly comprises two spandrel girders which are horizontally arranged in parallel, the second supporting device comprises two supporting section steels which are horizontally arranged in parallel, the supporting section steels are perpendicular to the spandrel girders, and two ends of the supporting section steels are respectively connected with the two 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 supporting section steel.
Preferably, the traction wire rope passes through between two sections of the fixed section steel.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the first supporting device is arranged below the traction sheave of the uplink overspeed protection device, the first fixing device is arranged at the bottom of the first supporting device, the first steel wire rope brake is arranged at the bottom of the first fixing device, the second supporting device is arranged below the first fixing device, the second fixing device is arranged at the bottom of the second supporting device, the 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, the traction steel wire ropes sequentially pass through the space between the first rope clamping plate and the second rope clamping plate, the maximum load capacity allowed by the uplink overspeed protection device is increased by adopting a mode of superposing a plurality of steel wire rope brakes, the rope winding ratio of the whole elevator does not need to be increased, the weight of the traction steel wire ropes does not need to be increased, the reverse rope sheave does not need to be increased, and the installation is simple, the maintenance is convenient, and the problem of large-scale cargo transportation of high-rise buildings is safely and reliably solved.
Drawings
The technical scheme of the invention is further explained by combining the accompanying drawings as follows:
FIG. 1 is a front view of the overspeed protection apparatus of the present invention;
FIG. 2 is a side view of the up overspeed protection apparatus of the present invention;
FIG. 3 is a bottom view of the up overspeed protection apparatus of the present invention with portions omitted.
Wherein: 1. a load bearing beam assembly; 11. a spandrel girder; 2. a traction machine; 21. a 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. a second rope clamping plate.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
As shown in the attached figure 1, the ascending overspeed protection device of the invention comprises a bearing beam assembly 1, wherein a traction machine 2 is arranged on the bearing beam assembly 1 and is used for conveying and transmitting power to enable an elevator to run. The traction machine 2 comprises a traction wheel 21, a traction steel wire rope 3 is wound on the traction wheel 21, the traction steel wire rope 3 is connected with the lift car and the counterweight device and is driven by the traction machine 2 to lift the lift car, and the traction steel wire rope bears the total of the self weight of the lift car, the self weight of the counterweight device, the rated load capacity, the driving force and the 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 steel wire rope brake 6 comprises a first rope clamping plate 61, the second steel wire rope brake 9 comprises a second rope clamping plate 91, and the traction steel wire rope 3 sequentially penetrates 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 connected with the bearing beam assembly 1 in a welding mode, the first supporting device 4 is connected with the first fixing device 5 through bolts, the second supporting device 7 is connected with the bearing beam assembly 1 in a welding mode, the second supporting device 7 is connected with the second fixing device 8 through bolts, and the bearing beam assembly is easy to replace if damaged during subsequent maintenance.
As shown in fig. 3, the load-bearing beam assembly 1 includes two sections of load-bearing beams 11 horizontally arranged in parallel, the second supporting device 7 includes two sections of supporting section steels 71 horizontally arranged in parallel, the supporting section steels 71 are perpendicular to the load-bearing beams 11, and two ends of the supporting section steels 71 are respectively connected with the two sections of load-bearing beams 11, so that the connection is more stable. The second fixing device 8 comprises two sections of fixing section steels 81 which are horizontally arranged in parallel, the fixing section steels 81 are perpendicular to the supporting section steels 71, two ends of the fixing section steels 81 are respectively connected with the two sections of supporting section steels 71, and the traction steel wire rope 3 penetrates through the space between the two sections of fixing section steels 81. The first supporting means 4 and the first fixing means 5 are of the same construction as the second supporting means 7 and the second fixing means 8, forming a stable frame.
The first wire rope brake 6 and the second wire rope brake 9 are both electric trigger type wire rope brakes, and the first wire rope brake 6 and the second 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 up overspeed signal, the two steel wire rope brakes can act synchronously to effectively divide the braking force of the whole system equally, and the elevator system is safe and reliable.
Before assembly, the first supporting device 4 and the first fixing device 5 are firstly connected through bolts and nuts according to the positions of mounting holes reserved on the supporting section steel and the fixing section steel on the ground, and then the first supporting device and the first fixing device are firstly pre-tightened, and then the first steel wire rope brake 6 is connected to the first fixing device 5 through bolts and is also pre-tightened; similarly, the second supporting device 7 and the second fixing device 8 are connected together by bolts and nuts according to the positions of the reserved mounting holes on the section steel, and are pre-tightened, and then the second steel wire rope brake 9 is connected to the second fixing device 8 and is pre-tightened. The first rope gripping plate 61 of the first rope brake 6 and the second rope gripping plate 91 of the second rope brake 9 are released until the traction rope 3 can pass through. The assembled parts are lifted upside down by the hoisting device and moved to the middle of the bearing beam assembly 1, the position of the assembled parts is adjusted according to the position of the traction steel wire rope 3, the traction steel wire rope 3 is ensured 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 bearing beam assembly 1. The installation position is adjusted according to the field condition, the required precision is small, and the installation is easy.
The ascending overspeed protection device increases the maximum load capacity allowed by the ascending 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 elevator, does not cause the weight increase of a traction steel wire rope, does not need to increase a diversion sheave, is simple to install, is convenient to maintain, and safely and reliably solves the problem of large-scale cargo transportation of high-rise buildings.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An upstream overspeed protection device, characterized in that: the traction device comprises a bearing beam assembly, wherein a traction machine is arranged on the bearing beam assembly, the traction machine comprises a traction sheave, and a traction steel wire rope is arranged on the traction sheave; 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 penetrates through the first rope clamping plate and the second rope clamping plate.
2. The upstream overspeed protection device of claim 1, wherein: the first steel wire rope brake and the second steel wire rope brake are both electric trigger type steel wire rope brakes and are connected in series in the same circuit.
3. The upstream overspeed protection device of claim 1, wherein: the first supporting device is connected with the bearing beam assembly in a welded mode, the first supporting device is connected with the first fixing device through bolts, the second supporting device is connected with the bearing beam assembly in a welded mode, and the second supporting device is connected with the second fixing device through bolts.
4. The upstream overspeed protection device of claim 1, wherein: 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 connected with the two sections of bearing beams respectively.
5. The upstream overspeed protection device of claim 4, 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 connected with the two sections of supporting section steel respectively.
6. The upstream overspeed protection device of claim 5, wherein: the traction steel wire rope penetrates through 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 true CN113830641A (en) | 2021-12-24 |
| CN113830641B 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 |
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| CN (1) | CN113830641B (en) |
Citations (7)
| 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 |
| US20100282545A1 (en) * | 2008-04-15 | 2010-11-11 | Mitsubishi Electric Corporation | Elevator device |
| 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 |
| US20130248296A1 (en) * | 2010-12-17 | 2013-09-26 | Inventio Ag | Elevator installation with car and counterweight |
| 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 |
-
2021
- 2021-09-15 CN CN202111078978.6A patent/CN113830641B/en active Active
Patent Citations (7)
| 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 |
| US20100282545A1 (en) * | 2008-04-15 | 2010-11-11 | Mitsubishi Electric Corporation | Elevator device |
| US20130248296A1 (en) * | 2010-12-17 | 2013-09-26 | Inventio Ag | Elevator installation with car and counterweight |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN113830641B (en) | 2024-05-07 |
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