CN206751158U - A kind of electromechanical protector for being used for traction sheave or pulley - Google Patents
A kind of electromechanical protector for being used for traction sheave or pulley Download PDFInfo
- Publication number
- CN206751158U CN206751158U CN201720441879.2U CN201720441879U CN206751158U CN 206751158 U CN206751158 U CN 206751158U CN 201720441879 U CN201720441879 U CN 201720441879U CN 206751158 U CN206751158 U CN 206751158U
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- CN
- China
- Prior art keywords
- base
- microswitch
- block
- regulating bolt
- traction sheave
- 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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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
It the utility model is related to elevator safety protection device, and in particular to a kind of electromechanical protector for being used for traction sheave or pulley, including base, microswitch, regulating bolt, block and fixing device；The middle of the base is provided with microswitch, and the base both ends are symmetrically provided with regulating bolt, and the other end of the regulating bolt is provided with block, spring is provided between regulating bolt and base, and the position of block and microswitch contact is adjusted by regulating bolt；The base is arranged in the fixing device.The utility model is from external trigger microswitch, electromechanical braking, the shortcomings that overcoming mechanical protection, avoids that steel wire rope departs from grooving because of relaxation or foreign matter enters between rope and grooving, so as to cause elevator faults to cause personal injury.
Description
Technical field
It the utility model is related to elevator safety protection device, and in particular to a kind of electromechanical protection for traction sheave or pulley
Device.
Background technology
The driving of elevator has tractive driving, reel driving, hydraulic-driven etc., but now most popular is that traction is driven
It is dynamic, account for more than the 95% of elevator.Hoisting motor installed in computer room is the power of tractive driving.Traction steel-cable leads to
Cross traction sheave one end connection car, one end connection counterweight.To make the car in hoistway with counterweight each along hoistway middle guide
Operation sets directive wheel to separate the two without mutually rubbing on machine bed.The gravity of car and counterweight makes traction steel-cable
It is pressed in traction race and produces frictional force.So, motor rotation drives traction sheave to rotate, and drives steel wire rope, drags car
Performed relative motion with counterweight.I.e. car rises, and counterweight declines；Counterweight rises, cage descending.Then car in hoistway along guide rail
Upper and lower reciprocal operation, elevator perform vertical transport task.
Steel cable slot disengaging can cause steel rope fault, stranded, and serious meeting causes the abrasion of traction sheave grooving or even scrapped, shadow
Elevator safety operation is rung, causes economic loss.But the two is more than simple causality, steel cable slot disengaging can cause fracture of wire,
Stranded, grooving abrasion；Broken strand of steel cable can also cause steel cable slot disengaging.
Steel wire rope first takes off groove, and time of origin is generally elevator and run within 200,000 times.In this period steel wire rope due to by
Drawn to car or counterweight, gradually discharge plasticity, and because the degree of each steel wire rope plastic deformation is different, it can bring each
The notable difference of tractive force.Canonical process：Steel wire rope non-normal working → steel wire rope abjection race → steel wire rope is locally squeezed
Damage.By the difference in de- groove direction, two kinds of rope skipping and abseiling can be divided into again.Rope skipping：Steel wire ropes are radially beated excessive individually, are made
Into de- groove；Principal element：Each rope length degree is inconsistent；Each rope discontinuity；Embedded foreign matter in grooving；Steel wire rope intersects installation；
Diversion sheave bearing fragmentation etc..Abseiling：Indivedual steel wire ropes break away vertically on strong wheel, cause de- groove；Principal element：Steel wire rope is not
Vertically；Traction sheave, directive wheel, diversion sheave are not parallel.
De- groove, time of origin are generally elevator and come into operation more than 1 year or run more than 200,000 times after steel wire rope is first stranded；
Now steel wire rope plastic degeneration substantially eliminates, and steel wire rope working condition tends to stable；Meanwhile because rope sheave matching relationship causes to run
Fatigue influences increase, gradually produces steel wire rope fatigue breaking, stranded phenomenon.Improper transport, the installation of other steel wire rope can also make
Into damage of steel cable.Canonical process：Fracture of wire → stranded → twisted rope → de- groove.Principal element：Each rope length degree is inconsistent；Each rope stress
It is uneven；Embedded foreign matter in grooving；Steel wire rope intersects installation；Diversion sheave bearing fragmentation etc..
《Elevator manufactures and installation safety standard》（GB7588—2003）In 9.7 regulation：Traction sheave, pulley and sprocket wheel
Protection, to avoid：A) personal injury (biting risk)；B) steel wire rope or chain depart from grooving or sprocket wheel because of relaxation；C) foreign matter
Into between rope and grooving or chain and sprocket.
Number of patent application discloses a kind of protective cover for traction system, including traction sheave in being 201120313809.1
Protective cover, left side shields, right side shield, cover plate and screen cloth, it is provided with the top of the protective cover of traction sheave and is fixed with traction machine
Bolt connecting hole, the protective cover of traction sheave bottom is provided with the bolt connecting hole for being fixed on frame, the traction sheave protection
Cover left side and right side are respectively arranged bolt connecting hole and are bolted connection with left side shields, right side shield.But the protective cover
It is unfavorable for steel wire rope current check.
It can be seen that from existing traction sheave, the common protection form of pulley：Existing protector is to personal injury and foreign matter
Effective protective action can be played into the risk between rope and grooving；Steel wire rope is departed from because of relaxation the risk of grooving without
Effect.
Steel cable slot disengaging is easily sent out multiple, after steel cable slot disengaging, because the mechanical wounding such as rubbing, extruding, cause steel rope fault,
It is stranded, deformation the defects of scrap.Generally change one group of 20,000 yuan or so of steel wire rope cost；If steel cable slot disengaging is in evolution
In cause traction sheave to scrap, for its rehabilitation cost at 50,000 yuan or so, cost is higher.
Utility model content
The utility model provides a kind of electromechanical protector for traction sheave or pulley, external trigger microswitch,
Electromechanical braking, the shortcomings that overcoming mechanical protection, avoid that steel wire rope departs from grooving because of relaxation or foreign matter enters rope and grooving
Between, so as to cause elevator faults to cause personal injury.
In order to achieve the above object, the utility model adopts the following technical scheme that：
A kind of electromechanical protector for being used for traction sheave or pulley, it is characterised in that including base, microswitch, regulation
Bolt, block and fixing device；The middle of the base is provided with microswitch, and the base both ends are symmetrically provided with regulation spiral shell
Bolt, the other end of the regulating bolt are provided with block, spring are provided between regulating bolt and base, is adjusted by regulating bolt
The position of block and microswitch contact；The base is arranged in the fixing device.
Further, the fixing device includes fixed cross beam, fixed support and apparatus for adjusting position, and the fixed cross beam leads to
The apparatus for adjusting position is crossed to be hinged with the fixed support.
Further, the microswitch is normally closed type microswitch.
Further, the block is installed in parallel in the side of steel wire rope, the gap between the block and the steel wire rope
For 2mm~3mm.
Had the beneficial effect that caused by the utility model：
1st, the utility model can play effective protective action to tracking-driven elevator steel cable slot disengaging, can detect in time
Whether there is the potential risk of fracture of wire or de- groove to steel wire rope.
2nd, the utility model does not change elevator existing control system, simple in construction, significant effect.Both can be used alone,
Can be as the useful supplement of existing safety device, the defects of overcoming existing safety device, reduce personal injury and economical damage
Lose.
Brief description of the drawings
Fig. 1 is protector schematic diagram of the present utility model.
In figure：1- steel wire ropes, 2- microswitches, 3- microswitches contact, 4- power lines, 5- blocks, 6- bases, 7- regulations
Bolt, 8- springs, 9- apparatus for adjusting position, 10- fixed cross beams, 11- fixed supports.
Embodiment
Come further details of explanation the utility model, but the utility model with specific embodiment below in conjunction with the accompanying drawings
Protection domain be not limited to this.
As shown in figure 1, a kind of electromechanical protector for being used for traction sheave or pulley, including base 6, microswitch 2, regulation
Bolt 7, block 5 and fixing device；The middle part of the base 6 is provided with microswitch 2, and the both ends of base 6 are symmetrically provided with
Regulating bolt 7, the other end of the regulating bolt 7 are provided with block 5, spring 8 are provided between regulating bolt 7 and base 6, passes through tune
Bolt 7 is saved to adjust the position of block 5 and microswitch contact 3；The fixing device is provided with fixed cross beam 10, fixed support 11
It is be hinged by the apparatus for adjusting position 9 and the fixed support 11 with apparatus for adjusting position 9, the fixed cross beam 10.Work as gear
Block 5 is compressed, and after triggering microswitch contact 3, spring 8 can drive block 5 to automatically restore to original position.Institute
It is normally closed type to state microswitch 2.
The device is arranged on the elevator pedestal near traction sheave or pulley, link stopper is arranged on by steel by fixing device
Cord is involved in or rolled out above traction sheave and pulley, and adjusts fixed cross beam 10 and fixed support 11 by apparatus for adjusting position 9
Relative position, so as to reach regulation block 5 purpose, block 5 is installed in parallel in the side of steel wire rope 1, block 5 and steel wire
Gap between rope 1 is 2mm ~ 3mm, it is preferred that the gap between block 5 and steel wire rope 1 is set to 2mm, and microswitch 2 is passed through
Power line 4 is sealed in elevator safety loop, and when the unsafe condition such as steel wire rope looseness or stranded, fracture of wire occurs, the external world promotes gear
Block 5, microswitch 2 is triggered, disconnect elevator safety loop, elevator is out of service.The utility model both can be used alone, and can also make
For the useful supplement of existing safety device, the defects of overcoming existing safety device, personal injury and economic loss are reduced.
Steel wire rope is the important process part of tracking-driven elevator, will work daily hundreds and thousands of times, belong to elevator rapid wear
Part.《Elevator uses management and maintaining rule》（TSG T5001—2009）Regulation, with the every maintaining one in 15 days of elevator
It is secondary；It was found from the harm of tracking-driven elevator steel cable slot disengaging and form, de- groove occurs for steel wire rope within the normal maintenance cycle,
It is possible to can't check, in turn results in bigger harm.So when the de- groove of steel wire rope generation endangers, elevator should stop transporting first
OK, in order to avoid causing further to damage；Then, the original of engineering technology, assembly technology, personnel's crudity etc. is searched by maintenance staff
Cause, after the elimination of above-mentioned reason, then determine whether elevator comes into operation.
It is noted that above-described embodiment is to the illustrative and not limiting of technical solutions of the utility model, affiliated technology neck
The equivalent substitution of domain those of ordinary skill or the other modifications made according to prior art, as long as not exceeding the utility model skill
The thinking and scope of art scheme, it should be included within the interest field required by the utility model.
Claims (4)
1. a kind of electromechanical protector for being used for traction sheave or pulley, it is characterised in that including base, microswitch, regulation spiral shell
Bolt, block and fixing device；The middle of the base is provided with microswitch, and the base both ends are symmetrically provided with regulating bolt,
The other end of the regulating bolt is provided with block, and spring is provided between regulating bolt and base, and gear is adjusted by regulating bolt
The position of block and microswitch contact；The base is arranged in the fixing device.
2. a kind of electromechanical protector for being used for traction sheave or pulley according to claim 1, it is characterised in that described solid
Determining device includes fixed cross beam, fixed support and apparatus for adjusting position, the fixed cross beam by the apparatus for adjusting position with
The fixed support is hinged.
3. a kind of electromechanical protector for being used for traction sheave or pulley according to claim 1, it is characterised in that described micro-
Dynamic switch is normally closed type microswitch.
A kind of 4. electromechanical protector for being used for traction sheave or pulley according to claim 1, it is characterised in that the gear
Block is installed in parallel in the side of steel wire rope, and the gap between the block and the steel wire rope is 2mm~3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720441879.2U CN206751158U (en) | 2017-04-25 | 2017-04-25 | A kind of electromechanical protector for being used for traction sheave or pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720441879.2U CN206751158U (en) | 2017-04-25 | 2017-04-25 | A kind of electromechanical protector for being used for traction sheave or pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206751158U true CN206751158U (en) | 2017-12-15 |
Family
ID=60614561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720441879.2U Expired - Fee Related CN206751158U (en) | 2017-04-25 | 2017-04-25 | A kind of electromechanical protector for being used for traction sheave or pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206751158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938801A (en) * | 2020-12-04 | 2021-06-11 | 三菱电机上海机电电梯有限公司 | Anti-bouncing mechanism with signal feedback function, anti-bouncing device and working method |
-
2017
- 2017-04-25 CN CN201720441879.2U patent/CN206751158U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938801A (en) * | 2020-12-04 | 2021-06-11 | 三菱电机上海机电电梯有限公司 | Anti-bouncing mechanism with signal feedback function, anti-bouncing device and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20190425 |