CN204111192U - Pulley is with preventing skipping of steel wire rope slot device - Google Patents
Pulley is with preventing skipping of steel wire rope slot device Download PDFInfo
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- CN204111192U CN204111192U CN201420490502.2U CN201420490502U CN204111192U CN 204111192 U CN204111192 U CN 204111192U CN 201420490502 U CN201420490502 U CN 201420490502U CN 204111192 U CN204111192 U CN 204111192U
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- rope blocking
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Abstract
The utility model discloses a kind of pulley with preventing skipping of steel wire rope slot device, more than one piece rope blocking plate support (1) is hinged on assembly pulley, each pulley (6) correspondence is provided with an arc rope blocking plate (2), each described arc rope blocking plate (2) embeds certain length mutually with the rope race (12) of each described pulley (6), and described arc rope blocking plate (2) is fixedly mounted on described rope blocking plate support (1).The utility model is that a kind of structure is simple, maintenance operation is convenient, the pulley of dependable performance is with preventing skipping of steel wire rope slot device.
Description
Technical field
The utility model relates to a kind of pulley, is specifically related to a kind of pulley with preventing skipping of steel wire rope slot device.
Background technology
The device principal mode of groove skipping of steel rope while that prevents of its pulley position of dead sheave group of current hook type crane hook assembly pulley, dead sheave group or cantilever crane has: one, on pulley external diameter, set up the pulley shield consistent with pulley external diameter; Two, on pulley external diameter, a pieces bolt pin is set up by propping up; Three, on pulley external diameter, set up a several small sheave by propping up, small sheave grooving end sinks to pulley groove or is positioned at above pulley groove.
When the load-engaging devices such as crane hook or pawl bucket lie against ground or other makes steel rope be in the free relaxed state do not stressed: one, steel rope is in the interstitial site at pulley shield and pulley external diameter edge or bolt pin and pulley external diameter edge, if now directly started lift operations, steel rope is very easy to jump out from rope race, and snap in the gap at pulley shield (bolt pin) and pulley external diameter edge, or steel rope is directly jumped out and is stuck between pulley and pulley or between pulley and the side plate of pulley bracket from rope race; Two, for passing through a this mode for the several small sheave of erection on pulley external diameter, because there is the gap of certain length between each small sheave, the firm silk rope being in relaxed state is also deviate from (small sheave grooving end sinks to pulley groove mode) or is deviate from from the gap between small sheave external diameter and pulley external diameter (small sheave is positioned at mode above pulley groove) in easy pulley groove position between each small sheave, then snaps between small sheave support and pulley or between pulley and the side plate of pulley bracket.
Pulley cannot rotate in above-mentioned two situations, and steel rope will be intertwined, and steel rope very easily produces the breakoff phenomenons such as local plastic deformation, fracture or wearing and tearing, has a strong impact on the service life of steel rope.Also pulley shield, bolt pin, small sheave support will be made to deform simultaneously, if deformed by a this mode pulley bracket for the several small sheave of erection on pulley external diameter for adopting, small sheave will be made to contact with rope race, thus produce wearing and tearing to rope race, once rope race there occurs wearing and tearing produce wearing and tearing by directly making steel rope.And get rid of the mode that steel rope jumps out rope race generation clamping stagnation and pulley shield, whole lifting hook pulley group or fixed pulley group and small sheave support all can only be dismantled, when this kind of fault occurs, lifting hook pulley group or fixed pulley group overhead all have certain altitude, its failture evacuation bothers very much, and there is very big potential safety hazard.
Analyze the processing of pulley shield from processing and principle more loaded down with trivial details, plate bending and the mode of welding be difficult to accurate ensure the pulley shield after making and pulley crest clearance consistent, further increase the possibility that steel rope is jumped out from rope race.Pulley external diameter arranges this mode of small sheave can make lifting hook pulley group or other fixed pulley group oad increase, installing space required for it need increase simultaneously, particularly fixed pulley or when being positioned on the load-engaging device of similar pawl bucket assembly pulley, increase making the component of this pulley of installation, complete machine weight increases, thus manufacturing cost increases.This mode of bolt pin is the same with arranging small sheave (small sheave is positioned at mode above pulley groove) principle on pulley external diameter, all on pulley external diameter, limit steel rope jump out from rope race, but this mode just in pulley external diameter one section of arc length certain several restriction steel rope jump out, be namely difficult to ensure hoisting crane in use steel rope there will not be above-mentioned fault and generation breakoff phenomenon.By the steel rope of mode (small sheave grooving end sinks to rope race) this mode of the several small sheave of erection except foregoing description on pulley also deviate from or cause small sheave and rope race wear and tear in easy pulley groove position between each small sheave, because small sheave grooving end sinks in rope race, arc grooving two ends and its thickness direction both sides of small sheave all define sharp cutting edge, in hoisting crane use procedure particularly steel rope be frequently in free relaxed state to steel rope during the pawl bucket class operating mode of stressed tension will the frequent scraping of cutting edge therewith, steel rope abrasion is aggravated or fracture.
The part that baffle plate, pulley shield or the small sheave etc. that use in the mode preventing steel rope from job-hoping on pulley at present contact with steel rope is all metallic materials, all will increase the wearing and tearing of steel rope.
Utility model content
Technical problem to be solved in the utility model is to provide that a kind of structure is simple, maintenance operation is convenient, the pulley of dependable performance is with preventing skipping of steel wire rope slot device.
In order to solve the problems of the technologies described above, the pulley that the utility model provides is with preventing skipping of steel wire rope slot device, more than one piece rope blocking plate support is hinged on assembly pulley, each pulley correspondence is provided with an arc rope blocking plate, the rope race of each described arc rope blocking plate and each described pulley embeds certain length mutually, and described arc rope blocking plate is fixedly mounted on described rope blocking plate support.
Length direction in the middle of the internal diameter of described arc rope blocking plate is provided with and wirerope diameter, arc-shaped slot that rope race is corresponding, the bilateral symmetry of described arc-shaped slot is provided with deep-slotted chip breaker, and the trough rim of the rope race of described pulley extends in described deep-slotted chip breaker.
Described deep-slotted chip breaker is one with the single-v groove of root face, and single-v groove described after installing is parallel with described rope race interior sidewall surface.
Described arc rope blocking plate is the arc rope blocking plate of nylon casting.
Described arc rope blocking plate is fixed on described rope blocking plate support by double end stud, nut, packing ring and lining, described lining has more than one piece, be set on described double end stud, and being installed between pulley and pulley, the length of the lining described in each makes described arc rope blocking plate be positioned at rope race 12 center described in each.
Described rope blocking plate support is fixed on assembly pulley axle or side plate.
Described arc rope blocking plate and the mutual embedded location of described rope race establish a at regular intervals, and described spacing a is the minor increment ensureing that pulley does not interfere with described arc rope blocking plate in rotation process.
Adopt the pulley of technique scheme with preventing skipping of steel wire rope slot device, pulley shield is set with current, bolt lever mainly has the following advantages compared with the mode of small sheave: one, because the arc rope blocking plate of arcuate structure and rope race embed certain length mutually, when the load-engaging devices such as suspension hook or pawl bucket lie against ground or other makes steel rope be in the free relaxed state do not stressed, steel rope is in a closed continuum being made up of the arc-shaped slot of rope race and arc rope blocking plate surely, instead of the pulley external diameter edge of prior art and pulley shield, screw rod pin, interstitial site between small sheave, thus effectively reliably prevent steel rope and jump out from rope race.Two, because arc rope blocking plate and rope race embed mutually, so when other external factor makes rope blocking plate support deform, its arc rope blocking plate still reliably can be positioned at pulley position, thus more reliably ensures that steel rope can not be jumped out from rope race.Three, because arc rope blocking plate is nylon cast structure, not only easy to process and its wearing and tearing to steel rope can be eliminated completely, thus extend the service life of steel rope.Four, positioned by lining between each arc rope blocking plate, can ensure the installation site between arc rope blocking plate and rope race and gap exactly, namely this device performance is reliably installed simple and convenient.Five, because the utility model is main and pulley embeds installation mutually, and arc rope blocking plate adopts nylon manufacture, and namely this device oad is little, lightweight, does not affect the structure of its associated components, low cost of manufacture when installing and using.
In sum, the utility model is that a kind of structure is simple, maintenance operation is convenient, the pulley of dependable performance is with preventing skipping of steel wire rope slot device.
Accompanying drawing explanation
Fig. 1 is that the utility model is for structural representation during lifting hook pulley group.
Fig. 2 is along A-A line cut-away view in Fig. 1.
Fig. 3 is Ι place enlarged drawing in Fig. 2.
Fig. 4 is rope blocking plate structural representation of the present utility model.
Fig. 5 is along B-B line cut-away view in Fig. 4.
Fig. 6 is that the utility model is for structural representation during fixed pulley group.
Fig. 7 is along C-C line cut-away view in Fig. 6.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, on the assembly pulley axle that more than one piece rope blocking plate support 1 is hinged on lifting hook pulley group or side plate, each pulley 6 correspondence is provided with an arc rope blocking plate 2, each arc rope blocking plate 2 mutually embeds certain length with the rope race 12 of each pulley 6 and establishes a at regular intervals, and arc rope blocking plate 2 is fixedly mounted on rope blocking plate support 1.
Particularly, length direction in the middle of the internal diameter of arc rope blocking plate 2 is provided with and steel rope 7 diameter, arc-shaped slot 8 that rope race 12 is corresponding, the bilateral symmetry of arc-shaped slot 8 is provided with the first single-v groove 9 and the second single-v groove 10 with root face, the trough rim installing the rope race 12 of back pulley 6 extends in the first single-v groove 9 and the second single-v groove 10, and the first single-v groove 9 is parallel with rope race 12 interior sidewall surface with the second single-v groove 10.
The cross section of arc rope blocking plate 2 is rectangle, arc-shaped slot 8 is provided with in the middle of rectangle length direction, arc-shaped slot 8 both sides chamfering, this chamfering is convenient to arc rope blocking plate 2 and is installed in rear embedding rope race 12, after installation, this bevel edge is parallel with rope race 12 interior sidewall surface, and the groove of this chamfering and arc-shaped slot 8 both sides forms the first single-v groove 9 and the second single-v groove 10 with root face.
Preferably, the arc rope blocking plate 2 arc rope blocking plate 2 of casting for nylon.
Particularly, the thickness direction of arc rope blocking plate 2 is provided with multiple circular hole be convenient to double end stud 3 and passed, arc rope blocking plate 2 is fixed on rope blocking plate support 1 by double end stud 3, nut 5, packing ring 13 and lining 4, lining 4 has more than one piece, be set on double end stud 3, and being installed between pulley 6 and pulley 6, the length of each lining 4 makes arc rope blocking plate 2 be positioned at each rope race 12 center.
Arc rope blocking plate 2 and rope race 12 mutually embedded location establish a at regular intervals, and spacing a is the minor increment ensureing that pulley 6 does not interfere with arc rope blocking plate 2 in rotation process.
See Fig. 6 and Fig. 7, fixed pulley group is arranged on pulley bracket 11, on the assembly pulley axle that more than one piece rope blocking plate support 1 is hinged on fixed pulley group or side plate, each pulley 6 correspondence is provided with an arc rope blocking plate 2, each arc rope blocking plate 2 mutually embeds certain length with the rope race 12 of each pulley 6 and establishes a at regular intervals, and arc rope blocking plate 2 is fixedly mounted on rope blocking plate support 1.
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the arc rope blocking plate 2 of arcuate structure is embedded certain length with rope race 12 by the utility model mutually, and minimum appropriate distance is provided with between arc rope blocking plate 2 and rope race 12, its objective is: one, in order to steel rope 7 being limited in a continuous print closed region be made up of rope race 12 and the arc-shaped slot 8 of arc rope blocking plate 2, thus effectively prevent steel rope 7 and jump out from rope race 12; Two, the internal diameter in the middle of arc rope blocking plate 2 thickness is established arc-shaped slot 8 be to increase this closed region be made up of rope race 12 and arc rope blocking plate 2, more change steel rope 7 during to reduce the phenomenons such as wearing and tearing that steel rope 7 in use occurs or to be convenient to hoisting crane maintenance; Three, arc rope blocking plate 2 thickness middle circle deep-slotted chip breaker 8 bilateral symmetry is provided with one to be rope race 12 both sides to be embedded it with the first single-v groove 9 of root face and the second single-v groove 10 inner, when some other external factors make rope blocking plate support 1 deform, its arc rope blocking plate 2 still reliably can be positioned at pulley 6 position, thus more reliably ensures that steel rope 7 can not be jumped out from rope race 12.
Arc rope blocking plate 2 is nylon cast structure, while it is easy to process, can eliminates its wearing and tearing to steel rope 7 completely, thus extend the service life of steel rope 7.
Claims (10)
1. a pulley is with preventing skipping of steel wire rope slot device, it is characterized in that: more than one piece rope blocking plate support (1) is hinged on assembly pulley, each pulley (6) correspondence is provided with an arc rope blocking plate (2), each described arc rope blocking plate (2) embeds certain length mutually with the rope race (12) of each described pulley (6), and described arc rope blocking plate (2) is fixedly mounted on described rope blocking plate support (1).
2. pulley according to claim 1 is with preventing skipping of steel wire rope slot device, it is characterized in that: the length direction in the middle of the internal diameter of described arc rope blocking plate (2) is provided with and wirerope diameter, arc-shaped slot (8) that rope race (12) is corresponding, the bilateral symmetry of described arc-shaped slot (8) is provided with deep-slotted chip breaker, and the trough rim of the rope race (12) of described pulley (6) extends in described deep-slotted chip breaker.
3. pulley according to claim 2 is with preventing skipping of steel wire rope slot device, it is characterized in that: described deep-slotted chip breaker is one with the single-v groove of root face, and single-v groove described after installing is parallel with described rope race (12) interior sidewall surface.
4. the pulley according to claim 1,2 or 3, with preventing skipping of steel wire rope slot device, is characterized in that: the arc rope blocking plate (2) that described arc rope blocking plate (2) is cast for nylon.
5. according to claim 1, pulley described in 2 or 3 is with preventing skipping of steel wire rope slot device, it is characterized in that: described arc rope blocking plate (2) is by double end stud (3), nut (5), packing ring (13) and lining (4) are fixed on described rope blocking plate support (1), described lining (4) has more than one piece, be set on described double end stud (3), and be installed between pulley and pulley, the length of the lining (4) described in each makes described arc rope blocking plate (2) be positioned at rope race (12) center described in each.
6. pulley according to claim 4 is with preventing skipping of steel wire rope slot device, it is characterized in that: described arc rope blocking plate (2) is fixed on described rope blocking plate support (1) by double end stud (3), nut (5), packing ring (13) and lining (4), described lining (4) has more than one piece, be set on described double end stud (3), and being installed between pulley and pulley, the length of the lining (4) described in each makes described arc rope blocking plate (2) be positioned at rope race (12) center described in each.
7. the pulley according to claim 1,2 or 3, with preventing skipping of steel wire rope slot device, is characterized in that: described rope blocking plate support (1) is fixed on assembly pulley axle or side plate.
8. pulley according to claim 4 is with preventing skipping of steel wire rope slot device, it is characterized in that: described rope blocking plate support (1) is fixed on assembly pulley axle or side plate.
9. the pulley according to claim 1,2 or 3 is with preventing skipping of steel wire rope slot device, it is characterized in that: described arc rope blocking plate (2) and described rope race (12) mutually embedded location establish a at regular intervals, described spacing a is the minor increment ensureing that pulley does not interfere with described arc rope blocking plate (2) in rotation process.
10. pulley according to claim 4 is with preventing skipping of steel wire rope slot device, it is characterized in that: described arc rope blocking plate (2) and described rope race (12) mutually embedded location establish a at regular intervals, described spacing a is the minor increment ensureing that pulley does not interfere with described arc rope blocking plate (2) in rotation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490502.2U CN204111192U (en) | 2014-08-28 | 2014-08-28 | Pulley is with preventing skipping of steel wire rope slot device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490502.2U CN204111192U (en) | 2014-08-28 | 2014-08-28 | Pulley is with preventing skipping of steel wire rope slot device |
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| Publication Number | Publication Date |
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| CN204111192U true CN204111192U (en) | 2015-01-21 |
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| CN201420490502.2U Active CN204111192U (en) | 2014-08-28 | 2014-08-28 | Pulley is with preventing skipping of steel wire rope slot device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882824A (en) * | 2015-06-15 | 2015-09-02 | 国网四川省电力公司泸州供电公司 | Lead and ground wire groove-jumping prevention device and using method thereof |
| CN105526336A (en) * | 2016-01-01 | 2016-04-27 | 佳木斯大学 | Embedded pulley |
| CN105905821A (en) * | 2016-05-12 | 2016-08-31 | 武汉船用机械有限责任公司 | Directional pulley |
| CN108147301A (en) * | 2017-12-26 | 2018-06-12 | 河北兴隆起重设备有限公司 | Pulley blocks protection device about rope jumping |
| CN108203061A (en) * | 2018-03-19 | 2018-06-26 | 丁可 | A kind of embedded rollers group |
| CN109084085A (en) * | 2018-08-27 | 2018-12-25 | 徐州徐工随车起重机有限公司 | A kind of protective device of anti-route abjection |
| CN113044750A (en) * | 2021-04-27 | 2021-06-29 | 中国华能集团清洁能源技术研究院有限公司 | Anti-pinch rope pulley device and operation method |
| CN113336100A (en) * | 2021-05-18 | 2021-09-03 | 武汉船用机械有限责任公司 | Steel wire rope groove-dropping prevention device |
| CN113493157A (en) * | 2020-04-06 | 2021-10-12 | 奥的斯电梯公司 | Elevator compensation rope protector |
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2014
- 2014-08-28 CN CN201420490502.2U patent/CN204111192U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882824A (en) * | 2015-06-15 | 2015-09-02 | 国网四川省电力公司泸州供电公司 | Lead and ground wire groove-jumping prevention device and using method thereof |
| CN105526336A (en) * | 2016-01-01 | 2016-04-27 | 佳木斯大学 | Embedded pulley |
| CN105905821A (en) * | 2016-05-12 | 2016-08-31 | 武汉船用机械有限责任公司 | Directional pulley |
| CN105905821B (en) * | 2016-05-12 | 2018-06-26 | 武汉船用机械有限责任公司 | A kind of orientation pulley |
| CN108147301A (en) * | 2017-12-26 | 2018-06-12 | 河北兴隆起重设备有限公司 | Pulley blocks protection device about rope jumping |
| CN108203061A (en) * | 2018-03-19 | 2018-06-26 | 丁可 | A kind of embedded rollers group |
| CN109084085A (en) * | 2018-08-27 | 2018-12-25 | 徐州徐工随车起重机有限公司 | A kind of protective device of anti-route abjection |
| CN113493157A (en) * | 2020-04-06 | 2021-10-12 | 奥的斯电梯公司 | Elevator compensation rope protector |
| CN113044750A (en) * | 2021-04-27 | 2021-06-29 | 中国华能集团清洁能源技术研究院有限公司 | Anti-pinch rope pulley device and operation method |
| CN113336100A (en) * | 2021-05-18 | 2021-09-03 | 武汉船用机械有限责任公司 | Steel wire rope groove-dropping prevention device |
| CN113336100B (en) * | 2021-05-18 | 2023-09-05 | 武汉船用机械有限责任公司 | Wire rope anticreep groove device |
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