CN105540461A - Device for preventing pulley rope from slipping off - Google Patents
Device for preventing pulley rope from slipping off Download PDFInfo
- Publication number
- CN105540461A CN105540461A CN201610152547.2A CN201610152547A CN105540461A CN 105540461 A CN105540461 A CN 105540461A CN 201610152547 A CN201610152547 A CN 201610152547A CN 105540461 A CN105540461 A CN 105540461A
- Authority
- CN
- China
- Prior art keywords
- pulley
- swing arm
- rope device
- fixed
- weight
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
- B66C2700/084—Protection measures
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a device for preventing a pulley rope from slipping off. The device is characterized by comprising bearings, counter weights, support plates and positioning gear rods, the bearings are arranged at the two ends of a revolving shaft of a pulley of a crane in a sleeving mode, each counter weight is constituted by a swing arm and a balancing weight, each swing arm is vertically arranged, the upper end of each swing arm is fixed to the lower end of the corresponding bearing, each balancing weight is fixed to the lower end of the corresponding swing arm, one end of each support plate is fixed to the side face of the corresponding bearing, the positioning gear rods are arranged to be parallel to the revolving shaft of the pulley of the crane, the two ends of each positioning gear rod are fixed to the other ends of the support plates located at the two sides respectively, and each support plate and the corresponding swing arm are arranged in a forked mode, wherein an obtuse angle is formed between each support plate and the corresponding swing arm. A swing structure is adopted for the device, so that under emergency, the steel wire rope cannot squeeze and be stuck with the pulley, rope fracture accidents are avoided, and the service life of the device can be long.
Description
Technical field
The present invention relates to a kind of anti-off rope device, particularly a kind of pulley anti-off rope device.
Background technology
Hoisting crane refers to many actions elevator machinery of vertical-lift within the specific limits and horizontal carrying heavy goods.Also known as crane.Current domestic each large lifting Guangdong remy hair weight-lifting equipment Co., Ltd cancellation lift heavy driving functions gradually.The work characteristics that weight-lifting equipment has does intermittent exercise, and namely in a working cycle, the corresponding mechanism of the action such as feeding, migration, unloading is alternation, hoisting crane development commercially and use more and more extensive.
In the various single arm support hoisting crane of pitching luffing, the anti-off rope device of jib head fixed pulley generally has following form: 1. utilize the distance controlling between steel structure and pulley to stop de-rope; 2. between steel structure, welding or bolt connect lever and stop de-rope etc.Because jib luffing angle when working and overhaul changes greatly, above anti-off rope device effectively cannot protect steel rope arbitrarily angled.Because above anti-off rope device is fixed type, easily occur that steel rope is stuck, cause rope-broken accident.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of pulley anti-off rope device, and it still can form good protection to steel rope when hoisting crane luffing angle changes, and avoids de-rope.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of pulley anti-off rope device, it is characterized in that: comprise bearing, weight, stay bearing plate and location lever, described bearing carrier ring is located at whip-gin rotating shaft two ends, weight is made up of swing arm and clump weight, swing arm is vertically arranged and swing arm upper end is fixed on bearing lower end, clump weight is fixed on swing arm lower end, stay bearing plate one end is fixed on bearing side, location lever is parallel to whip-gin rotating shaft and arranges and locate the other end that lever two ends are separately fixed at supported on both sides plate, diverges setting in obtuse angle between stay bearing plate and swing arm.
Further, described stay bearing plate is fan-shaped support plate.
Further, described location lever is two, is separately positioned on the two ends on fan-shaped support plate outer side edges edge.
Further, the sector corner dimension of described fan-shaped support plate is 30 ~ 45 °.
Further, between described stay bearing plate and swing arm, angle is 100 ~ 120 °.
Further, described clump weight is disc counterweight, and its weight is 300 ~ 1000g.
Further, described location pin to be arranged on outside whip-gin and to locate pin and pulley rotating shaft core distance slightly larger than pulley maximum radius.
Further, described location pin and pulley outermost edge spacing are 2 ~ 4mm.
The present invention compared with prior art, has the following advantages and effect: by the control of weight, keeps steady state, do not affect by luffing range of cantilever support in jib pitching amplitude changing process.Under the states such as Condition of Sudden Unloading, protection steel rope can not depart from the pulley groove of each pulley.Owing to adopting swinging structure, make under unforeseen circumstances, also can not there is the stuck situation of extruding with pulley in steel rope, avoid rope-broken accident, the service life that this device has for a long time.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of pulley anti-off rope device of the present invention.
Fig. 2 is the lateral plan of a kind of pulley anti-off rope device of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment 1:
A kind of pulley anti-off rope device, comprise bearing 1, weight 2, stay bearing plate 3 and location lever 4, bearing 1 is set in whip-gin rotating shaft 5 two ends, weight 2 is made up of swing arm 6 and clump weight 7, swing arm 6 vertically arranges and swing arm 6 upper end is fixed on bearing 1 lower end, clump weight 7 is fixed on swing arm 6 lower end, stay bearing plate 3 one end is fixed on bearing 1 side, location lever 4 is parallel to whip-gin rotating shaft 5 and arranges and locate the other end that lever 4 two ends are separately fixed at supported on both sides plate 3, diverges setting in obtuse angle between stay bearing plate 3 and swing arm 6.
Stay bearing plate 3 is fan-shaped support plate.Location lever 4 is two, is separately positioned on the two ends on fan-shaped support plate 3 outer side edges edge.The sector corner dimension of fan-shaped support plate 3 is 30 °.Between stay bearing plate 3 and swing arm 6, angle is 100 °.Clump weight 7 is disc counterweight, and its weight is 300g.Location pin 4 to be arranged on outside whip-gin 8 and to locate pin and pulley rotating shaft core distance slightly larger than pulley maximum radius.Location pin and pulley outermost edge spacing are 2mm.
Embodiment 2:
A kind of pulley anti-off rope device, comprise bearing 1, weight 2, stay bearing plate 3 and location lever 4, bearing 1 is set in whip-gin rotating shaft 5 two ends, weight 2 is made up of swing arm 6 and clump weight 7, swing arm 6 vertically arranges and swing arm 6 upper end is fixed on bearing 1 lower end, clump weight 7 is fixed on swing arm 6 lower end, stay bearing plate 3 one end is fixed on bearing 1 side, location lever 4 is parallel to whip-gin rotating shaft 5 and arranges and locate the other end that lever 4 two ends are separately fixed at supported on both sides plate 3, diverges setting in obtuse angle between stay bearing plate 3 and swing arm 6.
Stay bearing plate 3 is fan-shaped support plate.Location lever 4 is two, is separately positioned on the two ends on fan-shaped support plate 3 outer side edges edge.The sector corner dimension of fan-shaped support plate 3 is 45 °.Between stay bearing plate 3 and swing arm 6, angle is 120 °.Clump weight 7 is disc counterweight, and its weight is 1000g.Location pin 4 to be arranged on outside whip-gin 8 and to locate pin and pulley rotating shaft core distance slightly larger than pulley maximum radius.Location pin and pulley outermost edge spacing are 4mm.
A kind of pulley anti-off rope device of the present invention when in use, carries out luffing angle change when crane arm support work, and this device controls due to weight, keeps steady state, do not affect by luffing range of cantilever support in jib pitching amplitude changing process.Under the states such as Condition of Sudden Unloading, protection steel rope can not depart from the pulley groove of each pulley.Owing to adopting swinging structure, make under unforeseen circumstances, also can not there is the stuck situation of extruding with pulley in steel rope, avoid rope-broken accident, the service life that this device has for a long time.
Above content described in this specification sheets is only casehistory made for the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from the content of specification sheets of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (8)
1. a pulley anti-off rope device, it is characterized in that: comprise bearing, weight, stay bearing plate and location lever, described bearing carrier ring is located at whip-gin rotating shaft two ends, weight is made up of swing arm and clump weight, swing arm is vertically arranged and swing arm upper end is fixed on bearing lower end, clump weight is fixed on swing arm lower end, stay bearing plate one end is fixed on bearing side, location lever is parallel to whip-gin rotating shaft and arranges and locate the other end that lever two ends are separately fixed at supported on both sides plate, diverges setting in obtuse angle between stay bearing plate and swing arm.
2. according to a kind of pulley anti-off rope device according to claim 1, it is characterized in that: described stay bearing plate is fan-shaped support plate.
3. according to a kind of pulley anti-off rope device according to claim 2, it is characterized in that: described location lever is two, is separately positioned on the two ends on fan-shaped support plate outer side edges edge.
4. according to a kind of pulley anti-off rope device described in Claims 2 or 3, it is characterized in that: the sector corner dimension of described fan-shaped support plate is 30 ~ 45 °.
5. according to a kind of pulley anti-off rope device according to claim 1, it is characterized in that: between described stay bearing plate and swing arm, angle is 100 ~ 120 °.
6. according to a kind of pulley anti-off rope device according to claim 1, it is characterized in that: described clump weight is disc counterweight, its weight is 300 ~ 1000g.
7. according to a kind of pulley anti-off rope device according to claim 1, it is characterized in that: described location pin to be arranged on outside whip-gin and to locate pin and pulley rotating shaft core distance slightly larger than pulley maximum radius.
8. according to a kind of pulley anti-off rope device according to claim 7, it is characterized in that: described location pin and pulley outermost edge spacing are 2 ~ 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152547.2A CN105540461A (en) | 2016-03-17 | 2016-03-17 | Device for preventing pulley rope from slipping off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152547.2A CN105540461A (en) | 2016-03-17 | 2016-03-17 | Device for preventing pulley rope from slipping off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105540461A true CN105540461A (en) | 2016-05-04 |
Family
ID=55820100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610152547.2A Pending CN105540461A (en) | 2016-03-17 | 2016-03-17 | Device for preventing pulley rope from slipping off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105540461A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003475A (en) * | 1974-11-27 | 1977-01-18 | Fmc Corporation | Crane boom lattice and hoist line protection assembly |
| CN201390604Y (en) * | 2009-04-21 | 2010-01-27 | 中国有色（沈阳）冶金机械有限公司 | Safe wire cable jumping preventer |
| CN102418360A (en) * | 2011-12-07 | 2012-04-18 | 北京市三一重机有限公司 | Dead-weight positioning pulley catch lever frame and erector arm |
| CN203604584U (en) * | 2013-11-19 | 2014-05-21 | 吕梁永安矿用安全设备研究所 | Steel wire rope falling-prevention device of fixed pulley |
| CN104495644A (en) * | 2014-12-29 | 2015-04-08 | 北京南车时代机车车辆机械有限公司 | Crane and crane gooseneck boom thereof |
| CN205381884U (en) * | 2016-03-17 | 2016-07-13 | 南通润邦重机有限公司 | Rope release device is prevented to pulley |
-
2016
- 2016-03-17 CN CN201610152547.2A patent/CN105540461A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003475A (en) * | 1974-11-27 | 1977-01-18 | Fmc Corporation | Crane boom lattice and hoist line protection assembly |
| CN201390604Y (en) * | 2009-04-21 | 2010-01-27 | 中国有色（沈阳）冶金机械有限公司 | Safe wire cable jumping preventer |
| CN102418360A (en) * | 2011-12-07 | 2012-04-18 | 北京市三一重机有限公司 | Dead-weight positioning pulley catch lever frame and erector arm |
| CN203604584U (en) * | 2013-11-19 | 2014-05-21 | 吕梁永安矿用安全设备研究所 | Steel wire rope falling-prevention device of fixed pulley |
| CN104495644A (en) * | 2014-12-29 | 2015-04-08 | 北京南车时代机车车辆机械有限公司 | Crane and crane gooseneck boom thereof |
| CN205381884U (en) * | 2016-03-17 | 2016-07-13 | 南通润邦重机有限公司 | Rope release device is prevented to pulley |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |
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| RJ01 | Rejection of invention patent application after publication |