CN103979448A - Pulley capable of preventing steel wire rope from sliding out of groove - Google Patents
Pulley capable of preventing steel wire rope from sliding out of groove Download PDFInfo
- Publication number
- CN103979448A CN103979448A CN201410200930.1A CN201410200930A CN103979448A CN 103979448 A CN103979448 A CN 103979448A CN 201410200930 A CN201410200930 A CN 201410200930A CN 103979448 A CN103979448 A CN 103979448A
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- China
- Prior art keywords
- pulley
- wire rope
- steel wire
- arc
- groove
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Abstract
The invention discloses a pulley capable of preventing a steel wire rope from sliding out of a groove. The pulley comprises a pulley shell body and a steel wire rope groove, wherein a left arc-shaped hole and a right arc-shaped hole which are not communicated with each other are formed in the pulley shell body outside the steel wire rope groove; the arc-shaped holes are arranged in the upper part of the steel wire rope groove; the radians of the arc-shaped holes are the same as the radian of the steel wire rope groove; pillar bodies which are matched with the arc-shaped holes are arranged at the outer ends of the two arc-shaped holes; one ends of the pillar bodies are hexagonal bodies and extend out of the openings of the arc-shaped holes of the pulley shell body; screw threads matched with screw caps are formed on the other ends of the pillar bodies; two springs are respectively placed in the two arc-shaped holes; the two ends of each spring are respectively connected with the inner ends of the pillar bodies and the arc-shaped holes. The pulley has the remarkable advantage of preventing the steel wire rope from sliding out of the groove.
Description
Technical field:
The present invention relates to the pulley of a kind of pulley, particularly a kind of anti-steel cable slot disengaging.
Background technology:
Pulley (movable pulley or fixed pulley) is the vitals on weight-lifting equipment, in use when steel rope is in relaxed state and steel rope during the cornerite in pulley groove large (as being greater than 120 degree), steel rope easily departs from from pulley groove, now stressed steel rope is extruded to be damaged and causes fracture, is the major reason of wire cable rupture accident.
Summary of the invention:
The pulley that the object of this invention is to provide a kind of anti-steel cable slot disengaging that a kind of steel rope do not rupture.
The technical scheme that realizes the object of the invention is, a kind of pulley of anti-steel cable slot disengaging, comprise pulley housings and steel wire rope groove, it is characterized in that: in the pulley housings outside steel wire rope groove, offer a left side, the right arcuate socket not being connected, this arcuate socket is on the top of steel wire rope groove, its radian is identical with the radian of steel wire rope groove, the outer end of described two arcuate sockets is provided with the cylinder of joining with described arcuate socket cunning, one end of this cylinder is that hexahedron stretches in outside the arc aperture of pulley housings, the other end of this cylinder is provided with the screw thread matching with nut, two springs are placed in respectively described two arcuate sockets, the two ends of spring are connected with the inner of described cylinder and arcuate socket respectively.On forward and backward of described pulley housings, be respectively provided with a curved cover plate, described curved cover plate is provided with two mutual disconnected arcuate sockets and identical and relative with two mutual disconnected arcuate sockets in pulley housings respectively, on the curved cover plate between described mutually disconnected two arcuate sockets and be respectively equipped with screw via hole in pulley housings between two mutual disconnected arcuate sockets, by screw, described two curved cover plates are fixed in pulley housings front and rear surfaces.
The present invention has the remarkable advantage of anti-steel cable slot disengaging compared with the prior art.
Accompanying drawing explanation:
Fig. 1 is front view of the present invention, and Fig. 2 is the A-A section-drawing of Fig. 1.
The specific embodiment:
An embodiment of the present invention, its structure is, in pulley housings outside steel wire rope groove, on 1 front and rear panel, offer a left side, the right arcuate socket not being connected, this arcuate socket is on the top of steel wire rope groove, its radian is identical with the radian of steel wire rope groove, the outer end of described two arcuate sockets is provided with the cylinder of joining with described arcuate socket cunning, one end of this cylinder is that hexahedron 4 stretches in outside the arc aperture of pulley housings, the other end of this cylinder is provided with the screw thread matching with nut, two springs 5 are placed in respectively described two arcuate sockets, the two ends of spring are connected with the inner of described cylinder and arcuate socket respectively.
Owing to having opened two arcuate sockets in pulley housings, its intensity weakens to some extent, increase by two curved cover plates, the length of this cover plate 3 and width are greater than two arcuate sockets in described pulley housings, middle at this cover plate is provided with screw hole, screw 6 is through in the screw hole of this cover plate and the screw hole of pulley housings, with nut by two cover plates be fixed on forward and backward of pulley housings upper, described two curved cover plates are provided with the arcuate socket identical and relative with arcuate socket in pulley housings.
Principle of work of the present invention is, when the angle of steel rope in pulley becomes large, two cylinders move inward, and when spring-compressed steel rope angle diminishes, spring moves cylinder outward, and cylinder is pressed in steel rope all the time in pulley groove and can take off groove and damage steel rope.
Claims (2)
1. the pulley of an anti-steel cable slot disengaging, comprise pulley housings and steel wire rope groove, it is characterized in that: in the pulley housings outside steel wire rope groove, offer a left side, the right arcuate socket not being connected, this arcuate socket is on the top of steel wire rope groove, its radian is identical with the radian of steel wire rope groove, the outer end of described two arcuate sockets is provided with the cylinder of joining with described arcuate socket cunning, one end of this cylinder is that hexahedron stretches in outside the arc aperture of pulley housings, the other end of this cylinder is provided with the screw thread matching with nut, two springs are placed in respectively described two arcuate sockets, the two ends of spring are connected with the inner of described cylinder and arcuate socket respectively.
2. the pulley of a kind of anti-steel cable slot disengaging as claimed in claim 1, it is characterized in that: on forward and backward of described pulley housings, be respectively provided with a curved cover plate, described curved cover plate is provided with two mutual disconnected arcuate sockets and identical and relative with two mutual disconnected arcuate sockets in pulley housings respectively, on the curved cover plate between described mutually disconnected two arcuate sockets and be respectively equipped with screw via hole in pulley housings between two mutual disconnected arcuate sockets, by screw, described two curved cover plates are fixed in pulley housings front and rear surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200930.1A CN103979448B (en) | 2014-05-14 | 2014-05-14 | A kind of pulley of anti-steel cable slot disengaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200930.1A CN103979448B (en) | 2014-05-14 | 2014-05-14 | A kind of pulley of anti-steel cable slot disengaging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103979448A true CN103979448A (en) | 2014-08-13 |
| CN103979448B CN103979448B (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410200930.1A Active CN103979448B (en) | 2014-05-14 | 2014-05-14 | A kind of pulley of anti-steel cable slot disengaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103979448B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184738A (en) * | 2021-04-20 | 2021-07-30 | 江苏和信石油机械有限公司 | Lifting device for drilling machine system |
Citations (9)
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| KR20090120578A (en) * | 2008-05-20 | 2009-11-25 | 한국타워크레인주식회사 | Overload limiting apparatus |
| CN201506990U (en) * | 2009-09-17 | 2010-06-16 | 江西铜业股份有限公司 | Electric shovel open bucket pulley gear |
| CN202245793U (en) * | 2011-09-13 | 2012-05-30 | 宝钢新日铁汽车板有限公司 | Steel wire rope jump prevention device |
| CN102862925A (en) * | 2012-09-23 | 2013-01-09 | 中国十七冶集团有限公司 | Automatic pulley aligning and rope releasing preventing device for material hauling engine |
| CN103303835A (en) * | 2013-07-08 | 2013-09-18 | 恒天九五重工有限公司 | Pulley steel wire rope anti-loosening device for multi-section telescopic arm |
| CN103359620A (en) * | 2012-03-28 | 2013-10-23 | 江苏华澄重工有限公司 | Steel wire rope retaining device for portal crane |
| CN203345957U (en) * | 2013-06-13 | 2013-12-18 | 长江精工钢结构(集团)股份有限公司 | Device for preventing steel wire rope from breaking away from pulley groove of crane |
| CN203474342U (en) * | 2013-09-10 | 2014-03-12 | 中交上航局航道建设有限公司 | Rope pressing device of winch |
| CN203855350U (en) * | 2014-05-14 | 2014-10-01 | 河南省第二建设集团有限公司 | Pulley with function of preventing steel wire rope from being detached from groove |
-
2014
- 2014-05-14 CN CN201410200930.1A patent/CN103979448B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090120578A (en) * | 2008-05-20 | 2009-11-25 | 한국타워크레인주식회사 | Overload limiting apparatus |
| CN201506990U (en) * | 2009-09-17 | 2010-06-16 | 江西铜业股份有限公司 | Electric shovel open bucket pulley gear |
| CN202245793U (en) * | 2011-09-13 | 2012-05-30 | 宝钢新日铁汽车板有限公司 | Steel wire rope jump prevention device |
| CN103359620A (en) * | 2012-03-28 | 2013-10-23 | 江苏华澄重工有限公司 | Steel wire rope retaining device for portal crane |
| CN102862925A (en) * | 2012-09-23 | 2013-01-09 | 中国十七冶集团有限公司 | Automatic pulley aligning and rope releasing preventing device for material hauling engine |
| CN203345957U (en) * | 2013-06-13 | 2013-12-18 | 长江精工钢结构(集团)股份有限公司 | Device for preventing steel wire rope from breaking away from pulley groove of crane |
| CN103303835A (en) * | 2013-07-08 | 2013-09-18 | 恒天九五重工有限公司 | Pulley steel wire rope anti-loosening device for multi-section telescopic arm |
| CN203474342U (en) * | 2013-09-10 | 2014-03-12 | 中交上航局航道建设有限公司 | Rope pressing device of winch |
| CN203855350U (en) * | 2014-05-14 | 2014-10-01 | 河南省第二建设集团有限公司 | Pulley with function of preventing steel wire rope from being detached from groove |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184738A (en) * | 2021-04-20 | 2021-07-30 | 江苏和信石油机械有限公司 | Lifting device for drilling machine system |
| CN113184738B (en) * | 2021-04-20 | 2022-06-28 | 江苏和信石油机械有限公司 | Lifting device for drilling machine system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103979448B (en) | 2016-08-31 |
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