CN204661149U - A kind of steel wire rope twisting prevention device - Google Patents
A kind of steel wire rope twisting prevention device Download PDFInfo
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- CN204661149U CN204661149U CN201520303529.0U CN201520303529U CN204661149U CN 204661149 U CN204661149 U CN 204661149U CN 201520303529 U CN201520303529 U CN 201520303529U CN 204661149 U CN204661149 U CN 204661149U
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- nut
- rope
- prevention device
- swivel nut
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Abstract
The utility model discloses a kind of steel wire rope twisting prevention device, be applicable to elevator machinery field.This device comprises cylindrical shell, the mode coordinated by internal and external threads is fixedly mounted on the outside thread swivel nut in the cavity of cylindrical shell lower end, be successively set on the thrust ball bearing above outside thread swivel nut, nut from the bottom to top, the wire-rope sling axle in outside thread swivel nut hollow post holes is installed on dynamic fit system, the upper end of described wire-rope sling axle diameter of axle section through thrust ball bearing, adopt internal and external threads to coordinate mode together with nut spinning, and to be fixed as one by the clamp that is arranged on upper end, bolts and nuts.Utilize the utility model freely to switch and rotate freely and lock two kinds of working environments, there is the features such as structure is simple, lock-out state is safe and reliable, and productive costs is low, easy to install, working stability is reliable.
Description
Technical field
The utility model relates to a kind of corollary apparatus of elevator machinery field, relates to a kind of steel wire rope twisting prevention device specifically.
Background technology
Steel rope is the vitals of elevator machinery, is widely used in the engineering reality such as tourism, traffic, mining, harbour.Because steel rope exists inner torsion in compilation process, steel rope can twist when load weight knotting, make steel rope abrasion serious and cause cage phenomenon, if the inner torsion of steel rope can not get release, to have a strong impact on rope service-life, therefore elevator machinery is generally provided with steel wire rope twisting prevention device to discharge this part stress.Even if employing anti-rotating wire rope, very difficult owing to will designing and being made into complete non rotating, the initial volume of adding new steel rope wears the impact around factors such as horizontal forces around stress, steel rope, in use also can there is torsion phenomenon in various degree in steel rope, under long term accumulation, also the rotation of suspension hook can be caused, therefore serious once steel rope knotting phenomenon, also need to discharge this part stress by steel wire rope twisting prevention device.
Current elevator machinery uses steel rope to mainly contain two kinds: one is non-anti-rotating wire rope, and one is anti-rotating wire rope.Front one requires that anti-twisting equipment does not rotate with steel rope, and rear one needs anti-twisting equipment to rotate with steel rope.Therefore, anti-twisting equipment not only will possess the function rotated freely, and also wants to lock.
Fig. 1 shows the structural representation of a kind of steel wire rope twisting prevention device of the prior art.As shown in Figure 1, steel wire rope twisting prevention device comprises bearing seat 1-10 and connecting portion 1-20, and when wire rope rotating, connecting portion 1-20 can rotate freely, thus overcomes the internal rotating stress of steel rope, realizes the anti-of steel rope and turns round.But, this steel wire rope twisting prevention device have complex structure, cost high, be not easy to the shortcomings such as dismounting thrust baring.Key is that this device does not have auto-lock function, therefore little to the Applicable scope of steel rope.
Fig. 2 shows the structural representation of another kind of steel wire rope twisting prevention device of the prior art.As shown in Figure 2, the free end of steel rope is connected with connecting portion, and lock cell 2-5 is arranged on the sidewall of bearing seat 2-8, and inconsistent or be separated with connecting portion.Whole steel wire rope twisting prevention device is in lock or free rotation state by regulating the inconsistent of lock cell 2-5 and connecting portion or being separated.This steel wire rope twisting prevention device can realize the switching of two states, but there is following drawback in using:
1, the lock-out state of this device is that the inconsistent mode of the nut 2-3 with hexagon side that have employed in lock cell 2-5 and connecting portion locks, because lock bolt end face is generally plane, just in time conflict on the limit of two sides formation of the nut 2-3 of connecting portion if the lock bolt of lock cell 2-5 screws in, then define linear contact lay, squish area will reduce greatly, thus reducing coupling mechanism force, locking function can not be guaranteed;
If 2, the length of the lock bolt screw-in on these device both sides is different, just different to the pressure of transmission shaft 2-2, the easy like this transmission shaft 2-2 that causes produces skew and affects bearing life;
3, this device lock bolt force side arm length, and the line of centers of the active line of power and nut 2-3 is close, and the arm of force is very little, and such lock bolt is stressed just very large, and long term accumulation easily causes lock bolt to rupture, and affects locking function equally;
4, according to the layout of this device, twisting resistance finally will be born by nut spring cotter 2-11, and the resistance to shear of nut spring cotter 2-11 is limited, and therefore coupling mechanism force can not be guaranteed, and there is potential safety hazard equally.
Fig. 3 shows the structural representation of the third steel wire rope twisting prevention device of the prior art.As shown in Figure 3, the rotating element of this steel wire rope twisting prevention device is adapter shaft 3-2, lock bolt is 3-5, lock bolt 3-5 is arranged on the side of mount pad 3-1, by regulating lock bolt 3-5 and adapter shaft 3-2 inconsistent or be separated and realize locking or rotating freely the switching of two states, but still there is certain drawback in use:
1, the lock-out state of this device is that the mode that have employed lock bolt 3-5 and the inconsistent friction of adapter shaft 3-2 locks, the predetermincd tension that the top of lock bolt 3-5 and the friction force of the inconsistent generation of adapter shaft 3-2 rely on lock bolt 3-5 to screw in mount pad 3-1 produces, in use this lock bolt 3-5 screws in the experience of the predetermincd tension dependence workman of mount pad 3-1, if predetermincd tension is not enough, then likely causes not enough with the friction force of the inconsistent generation of adapter shaft 3-2 and cause lockout failure;
2, the problem of in fig. 22,3 is deposited equally.
As can be seen here, there is following drawback in the anti-twisting equipment of prior art:
1, steel wire rope twisting prevention device is all much to rotate, and can not lock, function singleness (as shown in Figure 1), and installs complicated, complex structure;
Even if 2 have the anti-twisting equipment (as shown in Figure 2 and Figure 3) possessing and rotate and lock two kinds of functions, realize because their lock mode is all the friction force produced by lock bolt and adapter shaft, if this friction force does not carry out accurate Calculation, just not tight phenomenon may be there is; In addition, their compressive plane does not accomplish it is plane contact completely yet, there is not tight phenomenon equally, thus brings potential safety hazard;
3, these two kinds of working environments switch is all in aloft work, if anti-twisting equipment can not be accomplished convenient and swift, will bring more trouble, also may cause not tight phenomenon, bring potential safety hazard to staff;
4, the coupling mechanism force of prior art is all realized by lock bolt extruding turning cylinder, if the coupling mechanism force that both sides are transmitted is unbalanced, turning cylinder will be caused to offset, thus make bearing downward shift, affect bearing life.
Summary of the invention
The purpose of this utility model provides a kind of novel steel wire rope twisting prevention device for weak point existing in above-mentioned prior art just, this device freely can switch and rotates freely and lock two kinds of working environments, especially solves to produce friction force by lock bolt extruding turning cylinder in prior art and lock and the security hidden trouble that brings; Also solve the problem such as steel rope anti-rotation lock complex structure in prior art, productive costs height simultaneously.
The purpose of this utility model realizes by following technique measures:
Steel wire rope twisting prevention device of the present utility model comprises cylindrical shell, the mode coordinated by internal and external threads is fixedly mounted on the outside thread swivel nut in the cavity of cylindrical shell lower end, be successively set on the thrust ball bearing above outside thread swivel nut, nut from the bottom to top, the wire-rope sling axle in outside thread swivel nut hollow post holes is installed on dynamic fit system, the upper end of described wire-rope sling axle diameter of axle section through thrust ball bearing, adopt internal and external threads to coordinate mode together with nut spinning, and to be fixed as one by the clamp that is arranged on upper end, bolts and nuts.
The utility model is provided with the holding screw preventing outside thread swivel nut relative to barrel body rotation outside between thread screw sleeve and cylindrical shell.
The utility model is provided with two screws for spinning stop pin in the eye portion top bilateral symmetry of wire-rope sling axle, and thread screw sleeve bottom surface is provided with the counterbore matched with two stop pins outside; One end of described stop pin is cylinder, and the other end is polyhedron, and centre is processed with cross-hole, and interlude is thread segment.When needs Locking stylet rope suspension ring axle, stop pin is screwed in, stop pin end cylinder (optical axis portion) stretches into the counterbore place on outside thread swivel nut, then the outside thread swivel nut be fixedly installed in cylindrical shell is locked with the wire-rope sling axle matched with outside thread swivel nut with dynamic fit system, then by spring cotter, stop pin is fixed; When needs steel rope rotates release stress with anti-twisting equipment, only need two stop pins to screw out, anti-twisting equipment just can rotate freely.
The axle of wire-rope sling described in the utility model shaft end is processed with screw thread, matches with nut, and clamp is arranged in the draw-in groove of the end of nut and wire-rope sling axle by two bolts, prevent nut relative with wire-rope sling axle rotate produce loosen.
More specifically, cylindrical shell is processed by one section of steel pipe, plays a whole device inner structure of overfill protection; Nut, clamp and wire-rope sling axle are integrated, and constitute the moving part of whole mechanism; The cutting thread of wire-rope sling shaft end, matches with nut, and clamp is arranged in the draw-in groove of the end of nut and wire-rope sling axle by two bolts, prevent nut relative with wire-rope sling axle rotate produce loosen; Outside thread swivel nut is connected with cylindrical shell by screw thread, forms the fixed part of steel rope anti-rotation lock, is undertaken locking between outside thread swivel nut and cylindrical shell by holding screw; Be separated by by thrust ball bearing between fixed part and moving part, ensure that moving part can rotate freely; Wire-rope sling axle devises two stop pins, its projecting shaft can match with the counterbore that outside thread swivel nut designs, and locks the rotation of moving part.
The beneficial effects of the utility model are as follows:
1, freely can switch and rotate freely and lock two kinds of working environments, can realize all playing anti-torsion effect to anti-rotating wire rope and non-anti-rotating wire rope, when needs steel rope rotates freely release internal force, just lock screw is screwed out, make device be in free rotation state; When needs steel rope is non-rotatable, just lock screw is screwed in, device is in the lock state; Operate convenient and swift, especially for aloft work, more can show its preceence;
2, the utility model have employed pin-and-hole formula lock mode innovatively, avoids in prior art all drawbacks adopting friction lock to produce, and ensure that shaft strength is not eccentric, and reliability and the life-span of product are guaranteed;
3, because the utility model is skillfully constructed, thus have that structure is simple, lock-out state is safe and reliable, the feature such as not easily to loosen, productive costs is low, easy to install, working stability is reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of steel wire rope twisting prevention device of the prior art.
Fig. 2 is the structural representation of the second steel wire rope twisting prevention device of the prior art.
Fig. 3 is the structural representation of the third steel wire rope twisting prevention device of the prior art.
Fig. 4 is front view of the present utility model.
Fig. 5 is the partial view of E place in Fig. 4 (i.e. latched position of the present utility model).
Fig. 6 is the constructional drawing of stop pin in the utility model.
Fig. 7 is the A-A cutaway view of Fig. 6.
Detailed description of the invention
The utility model is described further below with reference to embodiment (accompanying drawing):
As shown in Figure 4, steel wire rope twisting prevention device described in the utility model comprises the moving part of the steel wire rope twisting prevention device be made up of bolt 1, packing ring 2, clamp 3, nut 4, wire-rope sling axle 5; The fixed part of the steel wire rope twisting prevention device be made up of lubricating cup 7, cylindrical shell 8, outside thread swivel nut 9, holding screw 10, stop pin 11, spring cotter 12.
Specifically, described cylindrical shell 8 is processed by one section of steel pipe, plays a whole device inner structure of overfill protection; Nut 4, clamp 3 are integrated with wire-rope sling axle 5, constitute the moving part of whole mechanism.The cutting thread of wire-rope sling axle 5 shaft end, matches with nut 4, and clamp 3 is arranged in the draw-in groove of the end of nut 4 and wire-rope sling axle 5 by two bolts 1, prevent nut 4 relative with wire-rope sling axle 5 rotate produce loosen; Outside thread swivel nut 9 is connected with cylindrical shell 8 by screw thread, forms the fixed part of steel rope anti-rotation lock, is undertaken locking between outside thread swivel nut 9 and cylindrical shell 8 by holding screw 10; Be separated by by thrust ball bearing 6 between fixed part and moving part, ensure that moving part can rotate freely.
The utility model is provided with two screws for spinning stop pin 11 in the eye portion top bilateral symmetry of wire-rope sling axle 5, and thread screw sleeve 9 bottom surface is provided with the counterbore 13 matched with two stop pins 11 outside; One end of described stop pin 11 is cylinder, and the other end is polyhedron, and centre is processed with cross-hole, conveniently carries out screwing in the operation screwed out, and interlude is thread segment (see Fig. 5,6,7).When needs Locking stylet rope suspension ring axle 5 (when needing fixing rotating part), stop pin 11 is screwed in, stop pin 11 end cylinder (optical axis portion) stretches into counterbore 13 place on outside thread swivel nut 9, then the outside thread swivel nut 9 be fixedly installed in cylindrical shell 8 is locked with the wire-rope sling axle 5 matched with outside thread swivel nut 9 with dynamic fit system (fixed part and moving part are locked), then by spring cotter 12, stop pin 11 is fixed; When needs steel rope rotates release stress with anti-twisting equipment, only need two stop pins 11 to screw out, anti-twisting equipment just can rotate freely.
During use, steel rope passes from the eyelet hole of wire-rope sling axle 5, and fixes with wire clips.When needs steel rope rotates freely release internal force, can screw out in hole corresponding from outside thread swivel nut 9 for two stop pins 11, then now wire-rope sling axle 5 can rotate freely, and device is adjusted to free rotation state;
When needs steel rope is non-rotatable, two stop pins 11 can be screwed in hole corresponding on outside thread swivel nut 9, device rotating part is locked, then device is adjusted to stationary state, thus prevents unnecessary rotation, extends the service life of steel rope.
Steel wire rope twisting prevention device structure described in the utility model lock mode that is simple, that take is novel, lock-out state is safe and reliable, not easily loosens.
Claims (5)
1. a steel wire rope twisting prevention device, it is characterized in that: comprise cylindrical shell, the mode coordinated by internal and external threads is fixedly mounted on the outside thread swivel nut in the cavity of cylindrical shell lower end, be successively set on the thrust ball bearing above outside thread swivel nut, nut from the bottom to top, the wire-rope sling axle in outside thread swivel nut hollow post holes is installed on dynamic fit system, the upper end of described wire-rope sling axle diameter of axle section through thrust ball bearing, adopt internal and external threads to coordinate mode together with nut spinning, and to be fixed as one by the clamp that is arranged on upper end, bolts and nuts.
2. steel wire rope twisting prevention device according to claim 1, it is characterized in that: the eye portion top bilateral symmetry of wire-rope sling axle is provided with two screws for spinning stop pin, and thread screw sleeve bottom surface is provided with the counterbore matched with two stop pins outside.
3. steel wire rope twisting prevention device according to claim 1, is characterized in that: be provided with the holding screw preventing outside thread swivel nut relative to barrel body rotation between outside thread swivel nut and cylindrical shell.
4. steel wire rope twisting prevention device according to claim 1, is characterized in that: described wire-rope sling axle shaft end is processed with screw thread, matches with nut, and clamp is arranged in the draw-in groove of the end of nut and wire-rope sling axle by two bolts.
5. steel wire rope twisting prevention device according to claim 2, is characterized in that: one end of described stop pin is cylinder, and the other end is polyhedron, and centre is processed with cross-hole, and interlude is thread segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303529.0U CN204661149U (en) | 2015-05-13 | 2015-05-13 | A kind of steel wire rope twisting prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303529.0U CN204661149U (en) | 2015-05-13 | 2015-05-13 | A kind of steel wire rope twisting prevention device |
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| Publication Number | Publication Date |
|---|---|
| CN204661149U true CN204661149U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520303529.0U Expired - Fee Related CN204661149U (en) | 2015-05-13 | 2015-05-13 | A kind of steel wire rope twisting prevention device |
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| CN (1) | CN204661149U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352312A (en) * | 2015-12-01 | 2016-02-24 | 无锡市晶瑜冶金机械有限公司 | Self-rotating adjusting bracket with double hanging points |
| CN110304471A (en) * | 2019-05-17 | 2019-10-08 | 南京恒辉粉体技术工程有限公司 | A kind of adjustable uniform distribution device |
| CN112097038A (en) * | 2020-09-15 | 2020-12-18 | 中国海洋石油集团有限公司 | Sensor dragging device for unmanned self-made underwater robot |
| CN113148880A (en) * | 2021-04-27 | 2021-07-23 | 广西建工集团建筑机械制造有限责任公司 | Tower machine wire rope air bleeder |
-
2015
- 2015-05-13 CN CN201520303529.0U patent/CN204661149U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352312A (en) * | 2015-12-01 | 2016-02-24 | 无锡市晶瑜冶金机械有限公司 | Self-rotating adjusting bracket with double hanging points |
| CN110304471A (en) * | 2019-05-17 | 2019-10-08 | 南京恒辉粉体技术工程有限公司 | A kind of adjustable uniform distribution device |
| CN112097038A (en) * | 2020-09-15 | 2020-12-18 | 中国海洋石油集团有限公司 | Sensor dragging device for unmanned self-made underwater robot |
| CN112097038B (en) * | 2020-09-15 | 2022-03-22 | 中国海洋石油集团有限公司 | Sensor dragging device for unmanned self-made underwater robot |
| CN113148880A (en) * | 2021-04-27 | 2021-07-23 | 广西建工集团建筑机械制造有限责任公司 | Tower machine wire rope air bleeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20180513 |