CN101759118B - Anti-over speed fall protection mechanism - Google Patents
Anti-over speed fall protection mechanism Download PDFInfo
- Publication number
- CN101759118B CN101759118B CN2010100029317A CN201010002931A CN101759118B CN 101759118 B CN101759118 B CN 101759118B CN 2010100029317 A CN2010100029317 A CN 2010100029317A CN 201010002931 A CN201010002931 A CN 201010002931A CN 101759118 B CN101759118 B CN 101759118B
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- China
- Prior art keywords
- rope
- lifting rope
- connecting rod
- lifting
- pusher
- 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.)
- Expired - Fee Related
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- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract 2
- 238000007689 inspection Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses an anti-over speed fall protection mechanism which comprises a sling locking device (4), a pushing connecting rod (5), a pusher (12), a speed measurement device (7), a bedplate (9), a connecting piece (10), a brake device (6) and a limit compression spring (11); the pusher (12) and the brake device (6) are connected with the pushing connecting rod (5); the sling locking device (4) of a sling (3) is fixed on the bedplate (9), and is connected with the pushing connecting rod (5) through the connecting piece (10); the sling line on the sling (3) is provided with the speed measurement device (7); and the limit compression spring (11) is arranged between the pushing connecting rod (5) and the bedplate (9). The invention provides a protection mechanism which is used for a platform lifted by two and more slings and prevents over speed fall in descending. The mechanism has simple structure and high efficiency, and can be used in a plurality of industries.
Description
Technical field
The present invention relates to a kind of anti-over speed fall protection mechanism.
Background technology
With inspection platform in the boiler stove of power industry is example, the up-down range of use of platform in burner hearth one at 30-60m.The up-down operation of this platform in stove is to lean on the outer power winch of stove to drive lifting rope (2-8 root lifting rope), links to each other with platform inside furnace through leading sheave.When the operation of the brake equipment et out of order of winch stopped, platform still leaned on the gravity of self to continue the tenesmus operation automatically, caused the slip velocity furnace bottom fall failure that lands vertically more and more sooner, caused the heavy loss of the person and equipment.
Summary of the invention
To the deficiency of prior art, the present invention provides a kind of platform (suspended object) that is used for two and two above lifting rope liftings, the protection mechanism of fall arrest when descending hypervelocity.This mechanism structure is simple, and efficient is high, and can be used for a plurality of industries.
The present invention adopts following technical scheme: a kind of anti-over speed fall protection mechanism; It is characterized in that it by the lock rope device, promote connecting rod, pusher, speed measuring device, platen, brake equipment, attaching parts and spacing compression spring and form; Described pusher, brake equipment and promotion connecting rod connect together; Lock rope device on the said lifting rope is fixed on the platen; Lock rope device on the lifting rope links to each other through attaching parts with the promotion connecting rod, and said lifting rope fall line circuit is provided with speed measuring device, and said spacing compression spring is located at the promotion connecting rod and platen is asked.
Said lock rope device is corresponding with the quantity of lifting rope, and every lifting rope is joined one group of lock rope device.
The present invention has following beneficial effect: this mechanism adopts many group lock rope devices; Join one group of lock rope device according to every of lifting rope quantity, when platform (suspended object) descending speed surpassed qualification speed, then speed measuring device was passed to pusher action control brake device action with overspeed signal (the overspeed signal value can be set adjusting); Pin lifting rope through this brake equipment; Under the effect of platform (suspended object) bearing down, under the promotion of the lifting rope that is lockable and the promotion connecting rod that connects together, reach many group lock rope devices and together move; Then pin whole lifting ropes of platform (suspended object), just control platform (suspended object) and continue the generation of downslide fall failure automatically.
Description of drawings
Fig. 1 is a structural representation of the present invention
The specific embodiment
As shown in Figure 1; The present invention is the protection mechanism on a kind of anti-over speed fall fender guard that is used for inspection platform; It is made up of lock rope device 4, promotion connecting rod 5, pusher 12, speed measuring device 7, platen 9, lifting rope brake equipment 6, attaching parts 10 and spacing compression spring 11; Pusher 12, lifting rope brake equipment 6 connect together with promotion connecting rod 5, can move reciprocatingly simultaneously, and the lock rope device 4 on the lifting rope 3 is fixed on the platen 9 and links to each other with promotion connecting rod 5 through attaching parts 10.Promote connecting rod 5 and ask that with platen 9 also being provided with spacing compression spring 11 is used for both are separated.The fall line circuit of lifting rope 3 is provided with speed measuring device 7.Lock rope device 4 is corresponding with the quantity of lifting rope 3, and every lifting rope 3 is joined one group of lock rope device 4.Lifting rope 3 passes lock rope device 4, promotes connecting rod 5, brake equipment 6 and speed measuring device 7 and passes through deflection sheave 2 inspection platform 1 is linked to each other with winch 8; When lifting rope 3 hypervelocities; Send overspeed signal by speed measuring device 7 and give pusher 12; Pusher 12 promotion lifting rope brake equipments 6 make it to pin the lifting rope through this brake equipment, and the power that descends by this lifting rope simultaneously drives promotion connecting rod 5 and promotes attaching parts 10 simultaneously forward, and all lifting ropes 3 are pinned in the lock rope device action at this moment whole lifting ropes; Just control platform and reach braking, control its automatic downslide.When starting winch 8 lifting lifting ropes, power supply is cut away in pusher 12 interlocks, and at this moment lifting rope is when the fault reversing sense moves, and the lock rope device of each lifting rope is all opened a way, and under the effect of spacing compression spring 11, just reaches the recovery initial condition.
Claims (3)
1. anti-over speed fall protection mechanism; It is characterized in that it by lock rope device (4), promote connecting rod (5), pusher (12), speed measuring device (7), platen (9), attaching parts (10), spacing compression spring (11) and lifting rope brake equipment (6) and form; Described pusher (12), lifting rope brake equipment (6) connect together with promotion connecting rod (5); Lock rope device (4) on the lifting rope (3) is fixed on the platen (9); Lock rope device (4) on the lifting rope (3) links to each other through attaching parts (10) with promotion connecting rod (5), and the fall line circuit of said lifting rope (3) is provided with speed measuring device (7), and said spacing compression spring (11) is located at and is promoted between connecting rod (5) and platen (9).
2. a kind of anti-over speed fall protection mechanism as claimed in claim 1 is characterized in that said lock rope device (4) is corresponding with the quantity of lifting rope (3), and every lifting rope (3) is joined one group of lock rope device (4).
3. a kind of anti-over speed fall protection mechanism as claimed in claim 1; It is characterized in that the action of said pusher (12) and the lifting operation interlock of winch, i.e. during winch (8) lifting platform operation, then pusher (12) is promptly cut off the electricity supply; Lifting rope brake equipment (6) is all opened a way with lock rope device (4) simultaneously; Return to virgin state, pusher (12) have only accept overspeed signal that speed measuring device (7) sends after, promote lifting rope brake equipment (6) action and pin steel rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100029317A CN101759118B (en) | 2010-01-01 | 2010-01-01 | Anti-over speed fall protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100029317A CN101759118B (en) | 2010-01-01 | 2010-01-01 | Anti-over speed fall protection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101759118A CN101759118A (en) | 2010-06-30 |
| CN101759118B true CN101759118B (en) | 2012-08-22 |
Family
ID=42490526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100029317A Expired - Fee Related CN101759118B (en) | 2010-01-01 | 2010-01-01 | Anti-over speed fall protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101759118B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092579U (en) * | 1991-06-20 | 1992-01-08 | 北京市建筑工程研究所 | Fallproof device of gondola |
| CN1843888A (en) * | 2005-04-08 | 2006-10-11 | 东芝电梯株式会社 | Rope brake device for elevator |
| CN201002902Y (en) * | 2006-06-30 | 2008-01-09 | 东芝电梯株式会社 | Control device used for elevator overspeed protective device |
| CN101513980A (en) * | 2008-02-19 | 2009-08-26 | 王钢 | Braking method for handling falling of out-of-control heavy object of crane |
-
2010
- 2010-01-01 CN CN2010100029317A patent/CN101759118B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092579U (en) * | 1991-06-20 | 1992-01-08 | 北京市建筑工程研究所 | Fallproof device of gondola |
| CN1843888A (en) * | 2005-04-08 | 2006-10-11 | 东芝电梯株式会社 | Rope brake device for elevator |
| CN201002902Y (en) * | 2006-06-30 | 2008-01-09 | 东芝电梯株式会社 | Control device used for elevator overspeed protective device |
| CN101513980A (en) * | 2008-02-19 | 2009-08-26 | 王钢 | Braking method for handling falling of out-of-control heavy object of crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101759118A (en) | 2010-06-30 |
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|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |