CN2373427Y - Rope-breaking anti-fall device for hoister - Google Patents
Rope-breaking anti-fall device for hoister Download PDFInfo
- Publication number
- CN2373427Y CN2373427Y CN 99221951 CN99221951U CN2373427Y CN 2373427 Y CN2373427 Y CN 2373427Y CN 99221951 CN99221951 CN 99221951 CN 99221951 U CN99221951 U CN 99221951U CN 2373427 Y CN2373427 Y CN 2373427Y
- Authority
- CN
- China
- Prior art keywords
- guide rail
- eccentric wheel
- endless cable
- eccentric
- cage
- 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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Abstract
The utility model discloses a broken-rope fall-proof device of a hoister, which comprises a pincer seat of a guide rail, a vertical plate and eccentric wheels, wherein in the eccentric wheels which are installed on both sides of the vertical guide rail, tightening springs are inwards dragged and pulled by a dragging stud shaft to apply force so as to tightly clamp and lock the guide rail. The device applies outward pulling force to the eccentric wheels by a limit mechanism of an eccentric wheel, which is composed of a dragging ring rope, a pulling and shifting stud shaft, a guide pulley, a rake type deflector rod, a twisting and shifting spring and a tightening spring so as to limit that eccentric wheels from disengaging the vertical guide rail. The device has the advantages of the simple structure, safe operation and reliable operation; besides, a hoister can be ensured to normally and safely work.
Description
The utility model discloses a kind of safety gear of gig, it is applied to prevent the cage wire cable rupture and causes the accident of the cage that falls to take place, and this mechanism is exactly the disconnected rope anti-fall device of gig, and it belongs to the vehicle for construction technical field.
Existing gig generally adopts the electromagnetism rail tongsrail clamp to save the cage that falls in the technology that prevents disconnected rope falling accident.So just increased unsafe electric leakage Danger Electric shock risk to gig, following, just increase the protection facility of protection against electric shock, so cause cost high cover end.Also have a kind of pawl formula protector of stretching, its impulsive force is bigger, nor safety, so the anti-fall safety apparatus of gig never has approved product.
It is a kind of simple in structure that the purpose of this utility model will provide exactly, the disconnected rope anti-fall device of the gig that is active in one's movements.This device will have easy for installation, and is rational in infrastructure, uses simply, safe and reliable, non-electric characteristics.
Task of the present utility model is finished by following technical scheme, developed a kind of disconnected rope anti-fall device of gig, it comprises: derrick line, the cage crossbeam, cage erects guide rail, guide rail pincers seat, be symmetrically installed with the guide rail pincers seat that is parallel to this guide rail at these crossbeam two ends, the eccentric wheel of intrinsic two symmetries of vertical hinge on the riser plate face of this pincers seat, be included in the perpendicular guide rail both sides of cage between the relative cylinder of two these wheels, and can the interior upside two cylinders clamping of its maximum outside diameter be locked on this guide rail both sides cylinder, on the nearly plate end face of two these wheels, be installed with group stud shaft that leads of taking turns rotation with this respectively; Cut with scissors the tractive endless cable of intrinsic eccentric wheel limit control mechanism on two these stud shafts respectively, this endless cable is hinged on the derrick line of cage by fixed pulley.
The disconnected rope of this gig button anti-fall device, described eccentric wheel limit control mechanism, it comprises: the tractive endless cable, lead and dial stud shaft, leading sheave, rake formula driving lever is turned round the dialing spring back-moving spring; Wherein there is the two ends of two back-moving springs and tractive endless cable to cut with scissors solid leading on group stud shaft respectively at two these wheels, the other end of two back-moving springs is hung solid on the bolt on riser top respectively, and this stud shaft applied inside pulling force, the endless cable section of tractive endless cable is respectively by being erected at leading sheave on the riser both upper ends thereof otic placode around on the rake plate that is hinged on rake formula driving lever, this rake plate and this stud shaft is applied outside pulling force around this endless cable on it, this driving lever by its lower end fixedly hinge and to turn round the dialing spring hinge solid on the gusset at riser rear portion, the upper end of this driving lever is hinged on this endless cable by its rake plate and also is hinged on the derrick line by fixed pulley.
The disconnected rope anti-fall device of this gig, described riser, above two solid symmetries of hinge on its plate face are eccentric, the guide roller of intrinsic two symmetries of also vertical hinge, two these roller symmetry contacts are on the both sides cylinder of the perpendicular guide rail of cage.
The disconnected rope anti-fall device of this gig also is provided with the spacing retaining bolt of the outer counter-rotating of eccentric wheel on the riser plate face between the described eccentric wheel, itself and cooresponding guide roller, this retaining bolt is less than eccentric maximum outside diameter at a distance of the distance in eccentric wheel axle center.
The disconnected rope anti-fall device of this gig, described eccentric wheel, it is to connect the big circularly-eccentric sheave that the roundlet center of circle is the axle center with interior, on the cylinder of its maximum outside diameter, also be provided with one section radial saw flank of tooth, the shared cylinder central angle of this tooth is the 18-168 degree, and its flank of tooth heat treatment hardness is HRC45-50.
Advantage of the present utility model is: under the prerequisite of the structure that does not change former gig, in the perpendicular guide rail both sides of cage the eccentric wheel that two symmetries are installed is set, utilize two eccentric wheel maximum outside diameter cylinders under the traction action of back-moving spring, internally change the both sides cylinder that clamps this guide rail mutually, cage is locked on this guide rail.This device design-calculated eccentric wheel limit control mechanism, in the lifting operation of normal operation, two eccentric wheel are the perpendicular guide rail of clipping cage not, this is because the derrick line of former gig is strained the tractive endless cable of this mechanism, this endless cable is by leading sheave, rake formula bar and turn round dialing spring set up, around, be hinged on eccentric leading and dial on the stud shaft, eccentric maximum outside diameter cylinder is outwards rotated, thereby, and this guide rail is not carried out clipping away from the perpendicular guide rail of cage.After the derrick line fracture, this endless cable loses the traction action of derrick line, thereby two eccentric wheel is not applied outside pulling force, is tightened up the commentaries on classics that inside pulling force draws of spring, the maximum outside diameter cylinder of two these wheels is clamped on the two sides of this guide rail, reaches the purpose of rapid prevention cage tenesmus.This apparatus structure is simple, and is easy for installation, and braking is rapid, and safe in operation is a kind of desirable anti-fall safety apparatus.
Example structure description of drawings of the present utility model is as follows:
Fig. 1: the structure side view of the disconnected rope anti-fall device of gig.
Fig. 2: the structural front view of the disconnected rope anti-fall device of gig.
Fig. 3: the structure birds-eye view of the disconnected rope anti-fall device of gig.
Make the disconnected rope anti-fall device of gig referring to Fig. 1-3, it comprises: derrick line 1, and cage crossbeam 2, cage erects guide rail 3, guide rail pincers seat 4.Be symmetrically installed with the guide rail pincers seat 4 that is parallel to this guide rail 3 at these crossbeam 2 two ends.Intrinsic two eccentric wheel 6 that symmetry is installed of vertical hinge on the riser 5 plate faces of this pincers seat 4.Be included in perpendicular guide rail 3 both sides of cage between the relative cylinder of two these wheels 6, and interior upside two cylinders that can its maximum outside diameter clamp hinge and fix on these guide rail 3 both sides cylinders.On the nearly plate end face of two these wheels 6, be installed with group stud shaft 7 that leads of taking turns 6 rotations with this respectively.Cut with scissors the tractive endless cable 8 of intrinsic eccentric wheel limit control mechanism on two these stud shafts 7 respectively.This endless cable 8 is hinged in the lifting 1 of cage by fixed pulley 9.
Designed eccentric wheel limit control mechanism, it comprises: tractive endless cable 8, lead and dial stud shaft 7, leading sheave 10, rake formula driving lever 11 is turned round dialing spring 13 and back-moving spring 18.Wherein there is the two ends of two back-moving springs 18 and tractive endless cable 8 to cut with scissors solid leading on group stud shaft 7 respectively at two these wheels.The other end of two back-moving springs 18 connects solid on the bolt on the riser 5 respectively, and this stud shaft 7 is applied inside pulling force.Tractive endless cable 8 endless cable sections are respectively by being erected at leading sheave 10 on the riser 5 both upper ends thereof otic placodes 20 around on the rake plate 12 that is hinged on rake formula driving lever 11.This rake plate 12 and apply outside pulling force around 8 pairs of these stud shafts 7 of this endless cable on it.This driving lever 11 by its lower end fixedly hinge 14 and to turn round dialing spring 13 hinges solid on the sieve plate 15 at riser 5 rear portions, this driving lever also is hinged on the derrick line 1 by fixed pulley 3 by its this endless cable 8 of rake plate 12 pivotallys attached in 1 upper end.
The riser 5 that this device is designed, above two solid symmetrical eccentric wheel 6 of hinge on its plate face, guide roller 16, two these roller 16 symmetry contacts of intrinsic two symmetries of also vertical hinge are on the both sides cylinder of the perpendicular guide rail 3 of cage.
Also be provided with the spacing retaining bolt 17 of the outer counter-rotating of eccentric wheel on riser between the eccentric wheel 6 that this device is designed, itself and cooresponding guide roller 16 and the plate face.The distance of this retaining bolt 17 at a distance of eccentric wheel 6 axle center is less than eccentric maximum outside diameter.Designed eccentric wheel 6, it is to connect the big circularly-eccentric sheave 6 that the roundlet center of circle is the axle center with interior, on the cylinder of its maximum outside diameter, also is provided with one section radial saw flank of tooth 19.These flank of tooth 19 shared cylinder central angle 162 degree, this flank of tooth heat treatment hardness is HRC45-48.
Claims (6)
1, a kind of disconnected rope anti-fall device of gig, it comprises: derrick line, the cage crossbeam, cage erects guide rail, guide rail pincers seat, it is characterized in that: be symmetrically installed with the guide rail pincers seat that is parallel to this guide rail at these crossbeam two ends, the eccentric wheel of intrinsic two symmetries of vertical hinge on the riser plate face of this pincers seat, be included in the perpendicular guide rail both sides of cage between the relative cylinder of two these wheels, and can the interior upside two cylinders clamping of its maximum outside diameter be locked on this guide rail both sides cylinder, on the nearly plate end face of two these wheels, be installed with group stud shaft that leads of taking turns rotation with this respectively; Cut with scissors the tractive endless cable of intrinsic eccentric wheel limit control mechanism on two these stud shafts respectively, this endless cable is hinged on the derrick line of cage by fixed pulley.
2, according to the disconnected rope anti-fall device of the described gig of claim 1, it is characterized in that: described eccentric wheel limit control mechanism, it comprises: the tractive endless cable, lead and dial stud shaft, leading sheave, rake formula driving lever is turned round dialing spring and back-moving spring; Wherein there is the two ends of two back-moving springs and tractive endless cable to cut with scissors solid leading on group stud shaft respectively at two these wheels, the other end of two back-moving springs is hung solid on the bolt on riser top respectively, and this stud shaft applied inside pulling force, the endless cable section of tractive endless cable is respectively by being erected at leading sheave on the riser both upper ends thereof otic placode around on the rake plate that is hinged on rake formula driving lever, this rake plate and this stud shaft is applied outside pulling force around this endless cable on it, this driving lever by its lower end fixedly hinge and to turn round the dialing spring hinge solid on the gusset at riser rear portion, the upper end of this driving lever is hinged on this endless cable by its rake plate and also is hinged on the derrick line by fixed pulley.
3, according to the disconnected rope anti-fall device of the described gig of claim 1, it is characterized in that: described riser, above two solid symmetries of hinge on its plate face are eccentric, the guide roller of intrinsic two symmetries of also vertical hinge, two these roller symmetry contacts are on the both sides cylinder of the perpendicular guide rail of cage.
4, according to the disconnected rope anti-fall device of claim 1 and 3 described gigs, it is characterized in that: described eccentric wheel, also be provided with the spacing retaining bolt of the outer counter-rotating of eccentric wheel on the riser plate face between itself and the cooresponding guide roller, this retaining bolt is less than eccentric maximum outside diameter at a distance of the distance in eccentric wheel axle center.
5, according to the disconnected rope anti-fall device of the described gig of claim 1, it is characterized in that: described eccentric wheel, it is to connect the big circularly-eccentric sheave that the roundlet center of circle is the axle center with interior, on the cylinder of its maximum outside diameter, also be provided with one section radial saw flank of tooth, the shared cylinder central angle of this flank of tooth is the 18-168 degree, and it is HRC45-50 that its flank of tooth is handled hardness.
6, according to the disconnected rope anti-fall device of the described gig of claim 4, it is characterized in that: described eccentric wheel, it is to connect the big circularly-eccentric sheave that the roundlet center of circle is the axle center with interior, on the cylinder of its maximum outside diameter, also be provided with one section radial saw flank of tooth, the shared cylinder central angle of this tooth is the 18-168 degree, and its flank of tooth heat treatment hardness is HRC45-50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221951 CN2373427Y (en) | 1999-08-11 | 1999-08-11 | Rope-breaking anti-fall device for hoister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221951 CN2373427Y (en) | 1999-08-11 | 1999-08-11 | Rope-breaking anti-fall device for hoister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2373427Y true CN2373427Y (en) | 2000-04-12 |
Family
ID=34012430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99221951 Expired - Fee Related CN2373427Y (en) | 1999-08-11 | 1999-08-11 | Rope-breaking anti-fall device for hoister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2373427Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585488B (en) * | 2009-06-11 | 2011-08-17 | 洛阳卡瑞起重设备有限公司 | Wire cable rupture protection system |
| CN108946528A (en) * | 2018-08-02 | 2018-12-07 | 芜湖英特杰智能科技有限公司 | A kind of derrick crane trolley rope broken protector |
-
1999
- 1999-08-11 CN CN 99221951 patent/CN2373427Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585488B (en) * | 2009-06-11 | 2011-08-17 | 洛阳卡瑞起重设备有限公司 | Wire cable rupture protection system |
| CN108946528A (en) * | 2018-08-02 | 2018-12-07 | 芜湖英特杰智能科技有限公司 | A kind of derrick crane trolley rope broken protector |
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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 |