CN202542740U - Integration device for rope-tightening and cable-breaking protection of trolley of tower crane - Google Patents
Integration device for rope-tightening and cable-breaking protection of trolley of tower crane Download PDFInfo
- Publication number
- CN202542740U CN202542740U CN201220104334XU CN201220104334U CN202542740U CN 202542740 U CN202542740 U CN 202542740U CN 201220104334X U CN201220104334X U CN 201220104334XU CN 201220104334 U CN201220104334 U CN 201220104334U CN 202542740 U CN202542740 U CN 202542740U
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- CN
- China
- Prior art keywords
- rope
- ratchet
- baffle plate
- trolley
- ratchet shaft
- 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 an integration device for the rope-tightening and the cable-breaking protection of a trolley of a tower crane. The integration device comprises supporting ear plates (1), a ratchet shaft (2), ratchets (3), a gravity center offset baffle plate (4) and a rope ring (5), wherein the two supporting ear plates (1) are welded on a trolley cross beam (8) at intervals; the ratchet shaft (2) passes through the two supporting ear plates (1); a ratchet wheel is machined at one end of the ratchet shaft (2); the ratchet (3) mounted on the supporting ear plate on the same side is hinged with the ratchet wheel; the gravity center offset baffle plate (4) is mounted on the outer edge of the supporting ear plate on the other side and rotates freely around the ratchet shaft (2); and the gravity center offset baffle plate (4) is connected with the rope ring (5). The integration device has the advantages of compact structure, convenience in installation, safety and reliability; the rope-tightening and the cable-breaking protection of the trolley are integrated according to the design, so that the trolley can keep balance and run freely under the action of a steel wire rope. When the steel wire rope is broken, the trolley is stopped from running to prevent accidents. When the steel wire rope is slack, the rope is tightened.
Description
Technical field
The utility model relates to tower machine accessory, is specifically related to the integrating device of a kind of tower machine dolly tight rope and disconnected cable protection.
Background technology
As everyone knows, the amplitude variation trolley steel rope of tower crane is through after working long hours, and steel rope is drawn the elongated luffing cable bent that causes to become big, and working together like this will cause by other object scratching causes the accident.In addition because wearing and tearing or fatigue and operator's violation possibly cause the disconnected rope of car rope phenomenon, amplitude variation trolley can be forward/or move backward under the action of gravity of unidirectional pulling force or inertia and lift heavy like this, also can cause the accident because of get out of hand.Protection of dolly anti-break rope and tight rope device that present most producer uses are two systems, are made up of baffle plate, bearing pin, pouring weight, when rope-broken accident takes place, lean on the effect of pouring weight gravity that baffle plate is kept off on the jib web member, realize disconnected cable protection.The tight rope device is realized through an other cover system, and total system is relatively disperseed, and is cumbersome on dolly is arranged, causes the anxiety of installing space.
Summary of the invention
The purpose of the utility model is: the integrating device that a kind of tower machine dolly tight rope and disconnected cable protection device are provided; This integrating device is brought together dolly tight rope and disconnected cable protection, has used for a long time elongated at steel rope and can carry out tight rope through this device, and this device moves voluntarily behind wire cable rupture; Stop dolly to continue operation; Preventing that dolly is out of control damages, and working stability is reliable, and is safe and effective; And in use be in state of equilibrium, guarantee the free-running operation of dolly on crane arm.
The technical scheme that the utility model adopts is: this integrating device comprises support otic placode, ratchet shaft, ratchet, centre offset baffle plate and becket bridle; On the dolly crossbeam, weld two at interval and support otic placode, ratchet shaft passes two and supports otic placode, and a wherein end of ratchet shaft is processed with ratchet; Be installed in homonymy and support the ratchet mesh ratchet gear on the otic placode; Support the outer of otic placode at opposite side a centre offset baffle plate is installed, the centre offset baffle plate freely rotates around axle, connects becket bridle on the centre offset baffle plate.
During reeve, the steel wire penetrating becket bridle is fixed through the hole in the middle of the ratchet shaft again; When steel rope is lax, with crow bar rotating ratchet axle, lax steel rope is made the steel rope tensioning on ratchet shaft, guarantee the normal operation of tower machine; If during wire cable rupture; Owing to lean on the centre offset baffle plate lack of equilibrium of steel rope balance; The centre offset baffle plate rotates under the effect of gravitational moment; The eccentric end of centre offset baffle plate is arrived on the dolly crossbeam, and the other end perk retaining of centre offset baffle plate has so just stoped the continuation operation of dolly on the web member in the middle of the jib lower boom.
The beneficial effect of the utility model is: compact conformation, and easy for installation, safe and reliable; Dolly tight rope and the integrated design of disconnected cable protection keep balance under the steel rope effect during normal operation, dolly can free-running operation; Behind wire cable rupture, stop dolly to continue operation, prevent unexpected generation; When steel rope is lax, realize tight rope.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the axonometric drawing of the utility model.
Among the figure: 1 supports otic placode, 2 ratchet shafts, 3 ratchets, 4 centre offset baffle plates, 5 becket bridles, 6 crow bars, 7 web members, 8 dolly crossbeams.
The specific embodiment
As shown in Figure 1, this integrating device comprises support otic placode 1, ratchet shaft 2, ratchet 3, centre offset baffle plate 4 and becket bridle 5, on dolly crossbeam 8, welds two at interval and supports otic placodes 1; Ratchet shaft 2 passes two and supports otic placode 1; A wherein end of ratchet shaft 2 is processed with ratchet, is installed in homonymy and supports ratchet 3 mesh ratchet gears on the otic placode, supports the outer of otic placode at opposite side a centre offset baffle plate 4 is installed; Centre offset baffle plate 4 freely rotates around ratchet shaft 2, connects becket bridle 5 on the centre offset baffle plate 4.
During reeve, steel wire penetrating becket bridle 5 is fixed through the hole in the middle of the ratchet shaft 2 again; When steel rope is lax, with crow bar 6 rotating ratchet axles 2, lax steel rope is made the steel rope tensioning on ratchet shaft 2, guarantee the normal operation of tower machine; If during wire cable rupture; Owing to lean on centre offset baffle plate 4 lack of equilibrium of steel rope balance; Centre offset baffle plate 4 rotates under the effect of gravitational moment; The eccentric end of centre offset baffle plate 4 is arrived on the dolly crossbeam 8, and the other end perk retaining of centre offset baffle plate 4 has so just stoped the continuation operation of dolly on the web member 7 in the middle of the jib lower boom.
Claims (1)
1. the integrating device of tower machine dolly tight rope and disconnected cable protection; It is characterized in that: this integrating device comprises support otic placode (1), ratchet shaft (2), ratchet (3), centre offset baffle plate (4) and becket bridle (5); Go up the interval at dolly crossbeam (8) and weld two support otic placodes (1), ratchet shaft (2) passes two and supports otic placodes (1), and a wherein end of ratchet shaft (2) is processed with ratchet; Be installed in homonymy and support ratchet (3) mesh ratchet gear on the otic placode; Support the outer of otic placode at opposite side a centre offset baffle plate (4) is installed, centre offset baffle plate (4) freely rotates around ratchet shaft (2), and centre offset baffle plate (4) is gone up and connected becket bridle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220104334XU CN202542740U (en) | 2012-03-20 | 2012-03-20 | Integration device for rope-tightening and cable-breaking protection of trolley of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220104334XU CN202542740U (en) | 2012-03-20 | 2012-03-20 | Integration device for rope-tightening and cable-breaking protection of trolley of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202542740U true CN202542740U (en) | 2012-11-21 |
Family
ID=47163406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220104334XU Expired - Fee Related CN202542740U (en) | 2012-03-20 | 2012-03-20 | Integration device for rope-tightening and cable-breaking protection of trolley of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202542740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398919A (en) * | 2014-09-11 | 2016-03-16 | 上海现代电梯制造有限公司 | Traction structure of lower-driven type counterweight-free elevator |
-
2012
- 2012-03-20 CN CN201220104334XU patent/CN202542740U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398919A (en) * | 2014-09-11 | 2016-03-16 | 上海现代电梯制造有限公司 | Traction structure of lower-driven type counterweight-free elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130320 |