CN2199970Y - Safety lift for building - Google Patents
Safety lift for building Download PDFInfo
- Publication number
- CN2199970Y CN2199970Y CN 94217185 CN94217185U CN2199970Y CN 2199970 Y CN2199970 Y CN 2199970Y CN 94217185 CN94217185 CN 94217185 CN 94217185 U CN94217185 U CN 94217185U CN 2199970 Y CN2199970 Y CN 2199970Y
- Authority
- CN
- China
- Prior art keywords
- cage
- suspension bucket
- counterweight
- fixed pulley
- bucket
- 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
Links
- 239000000725 suspension Substances 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000007599 discharging Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model provides a high-efficiency safety lift for building, which is composed of a derrick, a hoist machine, a bucket, a cage and a plurality of hoist ropes, wherein, one end of each of the hoist ropes is connected with the counterweight of the bucket, and the other end is connected with the cage by passing round a pulley wheel and a hoist wheel on the derrick; the dynamic friction force between the hoist wheel and the hoist ropes is used as the lifting power of the bucket and the cage, and the static friction force is used as the balance force of the bucket and the cage in a static state.
Description
The utility model is the improvement to vehicle for construction.
The safety cage that use the building ground is the visual plant of present building operation, and it affects the speed of job schedule and the height of efficient.Existing safety cage for building is a kind of security improvement frame winch, and it is by the lifting of tower winding frame, the cage power direct control by electrical motor and reel.This security improvement frame winch has a lot of shortcomings, for example: 1, by reel volume steel rope, cause the traction steel-cable self friction and cut wound; 2, by a traction steel-cable job, in case can't remedy after breaking; 3, make safety guard-safeguard by cage travel switch control AC contactor, can not cut off the power supply owing to frequent operation can cause bad bonding of the frequent contact excess current of AC contactor, thereby cause the cage that makes out of control to rush to summit.Also have the protection done by the moving knife switch of traction steel-cable lock rope band in addition, but this protection is also unreliable.Two kinds of above-mentioned protection mechanisms promptly enable to obtain the normal power down protection; can not protect and levy the misoperation of tractor driver when starting shooting for the second time; because after first time power-off protection; cage also has very big inertia to upper punch; when stop fixed after cage surpassed the trigger point of protection mechanism; so can't guarantee the normal operation of start for the second time, cause cage to rush to summit probably.4, the comprehensive cross-operation in building site has obstacle unavoidably and stretches in the tower, hinder cage on fall; Or the conduit sign indicating number serious wear of cage, cage is overstepped the limit; These situations all can make cage be stuck in pylon, tend to cause device damage, even can cause that pylon collapses, electrical motor and rotating cylinder are because of the not firm displacement of anchoring and break accidents such as traction steel-cable.
The utility model is at the above-mentioned shortcoming of safety cage and design-calculated, and purpose provides a kind of safety cage efficiently.
Realize the technical scheme of the utility model purpose; The tower winding frame is set in safety cage, is installed in cage fixed pulley, counterweight fixed pulley and the towing machine of tower winding top of the trellis and walks around the traction sheave on cage fixed pulley, the towing machine, the hoist ropes of counterweight fixed pulley, one end of hoist ropes is connected the cage that can land in the motion process, the other end is connected the counterweight and the suspension bucket that can land in the motion process, wherein, the length of the hoist ropes between cage and the counterweight is such design-calculated, when making assigned address below cage rises to the raising legs top, counterweight and suspension bucket just land.
Fig. 1 is the utility model safety cage structural representation, wherein frame of broken lines partly is that 90 ℃ of suspension bucket discharging scheme drawing turn to view: the 1st, and operation platform, the 2nd, storage bin hopper, the 3rd, concrete lifting bucket, the 4th, the insurance steel cable, the 5th, steel suspension rod, the 6th, counterweight, the 7th, pylon, the 8th, fixed pulley, the 9th, traction steel-cable, the 10th, cage, the 11st, towing machine; Fig. 2 is a concrete lifting bucket charging scheme drawing: the 12nd, and suspension bucket vehicle frame, the 13rd, hinge, the 14th, suspension bucket guide rail, the 15th, suspension bucket flashboard, the 16th, concrete mixer.
Below in conjunction with accompanying drawing the utility model is set forth: safety cage of the present utility model is made up of pylon 7, towing machine 11, suspension bucket 3, cage 10, some traction steel-cables 9, one end of said every traction steel-cable connects to hang and is connected with cage after half counterweight, the other end are walked around pulley 8,8a, traction sheave 11a and pulley 8b, 8c on the pylon, kinetic force of friction between traction sheave and the hoist ropes is as the power of suspension bucket and cage lifting, and static friction force as suspension bucket and cage the balancing force when static.Said towing machine has drop-gear box, and its one-level is slowed down and will be used worm screw, worm gear to rotate, and to utilize the mechanical self-latching of worm screw, balance suspension bucket and cage prevent to slip under suspension bucket and the cage arbitrary end when static (off working state).Double reduction adopts gear to rotate, so that increase transmission efficiency.The mouth of drop-gear box is connected with following traction sheave 11a, and this traction sheave is many holes traction sheaves, and each hole on it is corresponding with each bar of above-mentioned traction steel-cable 9.Said suspension bucket is the slide rail type suspension bucket, suspension bucket connects suspension bucket vehicle frame 12 by hinge 13, the suspension bucket vehicle frame then is limited in the suspension bucket guide rail 14 on the pylon and slides up and down, be that whole suspension bucket can slide up and down along the suspension bucket guide rail, suspension bucket also can rotate around hinge 13, hinge 13 is such design-calculateds, promptly (at this moment suspension bucket one end lands during in state of charge when suspension bucket, cage one end rises to the pylon top, suspension bucket becomes state of equilibrium with cage) oneself recoils hinge through to suspension bucket by it, land until the bottom, so that charging.When suspension bucket during at the discharging state (at this moment suspension bucket one end rises to top of tower, cage one end lands) suspension bucket make the bottom of suspension bucket towards the sky by the pulling force that makes progress of steel suspension rod 5, so that discharging, in addition, design a flashboard 15, with the input and output material of control suspension bucket at suspension bucket discharging opening place.
The working process of safety cage is as follows: the uphill process of cage---and unloaded or loaded material desire when rising (at this moment suspension bucket unloaded or still have material) when cage, actuating motor, traction sheave rotates, because suspension bucket and cage act on the traction sheave the tension force of steel rope, therefore traction sheave is having a friction force (when cage rises to steel rope on its rotation direction, this friction force has increased the raising force of cage), this is as the gravity sum of the friction force of power and the suspension bucket gravity greater than cage, so cage rises, suspension bucket descends.When suspension bucket lands, cage rises near the cat head, at this moment, suspension bucket and cage can not glide cage to the tension force and the mutual balance of the friction force on the traction sheave (this friction force numerical value at this moment equals the worm and gear self-lock force on the towing machine retarder) of steel rope.Also can not rush to summit simultaneously, because if cage past again rising when state of equilibrium means that the tension force on the steel rope loses entirely, friction force also loses entirely, and cage can only glide, and state again restores balance.Same principle, the uphill process of suspension bucket---be similar to the uphill process of above-mentioned cage.
The advantage of safety cage of the present utility model comprises: 1. because the operation principle of this machine is that frictionally is used as power, the burst destructive of machine operation is littler, thereby reduces mechanical accident. 2, since adopt many steel wire ropes for example four steel wire ropes make hoist ropes, in case disconnected rope wherein, other three ropes still can turn round, and can shut down and repair disconnected rope, thereby stop to resolve the accident that rope back loading thing falls. 3, owing to utilize the tension force on the hoist ropes to produce frictional force, after namely tension force disappears, also disappear as the frictional force of power, from And can avoid rushing to summit, hanging blue suspension bucket overload (the at this moment not enough traction loads of frictional force) and owing to do not have self-locking and the phenomenons such as the free landing of load such as loaded article. 4, suspension bucket and cage are worked simultaneously, have improved operating efficiency.
Claims (4)
1, a kind of building safety elevator, comprise the tower winding frame, be arranged on the cage fixed pulley 8b of tower winding top of the trellis, 8c counterweight fixed pulley 8,8a and towing machine and walk around cage fixed pulley 8b, traction sheave on the 8c towing machine, counterweight fixed pulley 8, the hoist ropes of 8a, it is characterized in that, walk around cage fixed pulley 8b in the said safety cage, one end of the hoist ropes of 8c is connected with the cage that can land in motion process, walk around counterweight fixed pulley 8, the other end of the hoist ropes of 8a is connected with the counterweight and the suspension bucket that can land in motion process, wherein, the length of the hoist ropes between cage and the counterweight is such design-calculated, when making assigned address below cage rises to the raising legs top, counterweight and suspension bucket just land.
2, safety cage according to claim 1 is characterized in that, the traction sheave on the said towing machine has one or more grooving.
3, safety cage according to claim 1 is characterized in that, said retarder adopts double reduction, and one-level adopts the worm and gear transmission, and another level adopts gear transmission.
4, safety cage according to claim 1, it is characterized in that, said suspension bucket is the slide rail type suspension bucket, the suspension bucket suspension bucket vehicle frame that is connected through the hinge, the suspension bucket vehicle frame then is limited in the suspension bucket guide rail on the pylon and slides up and down, be that whole suspension bucket can slide up and down along the suspension bucket guide rail, suspension bucket also can rotate around hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217185 CN2199970Y (en) | 1994-07-09 | 1994-07-09 | Safety lift for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217185 CN2199970Y (en) | 1994-07-09 | 1994-07-09 | Safety lift for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199970Y true CN2199970Y (en) | 1995-06-07 |
Family
ID=33832698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94217185 Expired - Fee Related CN2199970Y (en) | 1994-07-09 | 1994-07-09 | Safety lift for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199970Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816970A (en) * | 2017-12-04 | 2018-03-20 | 三洋电梯(珠海)有限公司 | The built-in fitting divergence component and method of a kind of exterior wall elevator |
-
1994
- 1994-07-09 CN CN 94217185 patent/CN2199970Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816970A (en) * | 2017-12-04 | 2018-03-20 | 三洋电梯(珠海)有限公司 | The built-in fitting divergence component and method of a kind of exterior wall elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 1995.06.07 |