CN105152062A - Electric-lifting automatic-locking fixed pulley and method for lifting article by means of fixed pulley - Google Patents
Electric-lifting automatic-locking fixed pulley and method for lifting article by means of fixed pulley Download PDFInfo
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- CN105152062A CN105152062A CN201510649915.XA CN201510649915A CN105152062A CN 105152062 A CN105152062 A CN 105152062A CN 201510649915 A CN201510649915 A CN 201510649915A CN 105152062 A CN105152062 A CN 105152062A
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Abstract
The invention belongs to the technical field of electric power construction pulleys, and discloses an electric-lifting automatic-locking fixed pulley and a method for lifting an article by means of the fixed pulley. The electric-lifting automatic-locking fixed pulley is characterized in that a pulley yoke with a hook is included; the pulley yoke is provided with a pulley with a groove, the upper side face of the pulley yoke is provided with an inverted-U-shaped support frame, a telescopic rod is arranged on an upper plate of the support frame, the lower end of the telescopic rod is provided with a pulley fork, a compressed ejection spring is arranged between the upper end of the pulley fork of the telescopic rod and the upper plate, and a brake wheel with a center shaft is arranged on the pulley fork; a circular ring is arranged at the position, corresponding to the center shaft, of the side, far away from the pulley yoke, of each side baffle, and a limited pull rope of which the end is fixedly connected with the center shaft is arranged in each circular ring in a penetrating mode. When the article arrives at the specific location, the article can stay at the location after the ropes are slowly loosened, use is more convenient, occupied personnel are few, and the human cost is greatly lowered.
Description
Technical field
The invention belongs to power construction pulley technical field, relate to electric power lifting specifically from stop fixed pulley and the method using this fixed pulley lifting article.
Background technology
In power construction or maintenance process, the instrument be positioned at below transmission tower or line bar or workpiece are transported in transmission tower by frequent needs, method of shipment mainly adopts and fix fixed pulley above transmission tower, then instrument or workpiece is pulled on by the rope walking around fixed pulley by the personnel being positioned at below.After workpiece or instrument arrive assigned address, main employing two kinds of methods make workpiece or instrument rest on assigned address: one, and be positioned at the operating personal of below always with pulling rope, not only labour intensity is large, and adds human cost; Its two, cable end is bundled in line bar or transmission tower root, like this, operating personal can unclamp rope, is engaged in other work, but so not only time-consuming, and easily causes workpiece or instrument to fall after rope loosens, and produces danger.
Summary of the invention
First technical matters that the present invention solves just be to provide a kind of easy and simple to handle, can automatic electric power lifting workpiece or instrument being rested on optional position at any time from stop fixed pulley.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is: comprise the pulley yoke with hook, described pulley yoke is provided with the fluted pulley of band, described pulley yoke upper side is provided with inverse u shape bracing frame, support frame as described above comprises upper plate and two side shields, lower end and the described pulley yoke lower end of support frame as described above are fixed and intersect certain angle with described pulley yoke, support frame as described above upper plate is provided with through hole, expansion link is provided with in described through hole, described expansion link lower end is provided with wheel fork, be provided with to compress between the wheel fork upper end and described upper plate of described expansion link and push up spring, described wheel fork is provided with the brake wheel with axis, described driving wheel inserts in the groove of described pulley, the side shield of support frame as described above is provided with along side shield direction, there is the groove of one fixed width, described axis two ends are positioned at described groove, at described side shield, pulley yoke side and described axis correspondence position are provided with annulus, in described annulus, are installed with the spacing stay cord that end is fixedly connected with axis.
Its additional technical feature is:
Be provided with " U " type clamping plate in described pulley yoke lower end, described clamping plate lower end is provided with binding bolt.
Second technical matters that the present invention solves just is to provide a kind of method using the lifting of above-mentioned electric power to promote article from stop fixed pulley.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
The method comprises the following steps:
The first step, dead sheave
Hook is suspended on steel wire or cross-arm;
Second step, by the rope one end with article through pulley
One end is fastened the free end of the rope of article from passing pulley away from bracing frame side and being placed in groove, axis is positioned at groove away from pulley yoke side, upwards top pressure compression top spring, is pressed in rope between brake wheel and pulley, and the free end of rope is delivered to ground;
3rd step, pulls down the free end of rope
Pull down the free end of rope, under the effect of rope friction force and compression top spring, axis is positioned at groove away from pulley yoke side, and article rise along with rope;
4th step, stops pulling down rope
When article arrive assigned address, stop pulling down rope, come up rope, rope slides along pulley to reversing sense, now, under the effect of friction force under the gravity of article drives, rope drives axis to move to pulley yoke side from groove away from pulley yoke side, axis is in the process of movement, and because the top by pulley is pressed, expansion link moves along on through hole, compression top spring, along with the top compressive strain of compression top spring, the increasing pressure between brake wheel and rope is large, until rope stops mobile;
5th step, construction
Top-operation personnel stop, after assigned address, constructing at article;
Article are sent back to by the 6th step
Pull spacing stay cord, make axis get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, and its friction force also decreases, and under the effect of article gravity, article drive rope to get back to ground.
Its additional technical feature is:
When the height that article rise to by described 4th step is higher than assigned address, pull spacing stay cord, axis is made to get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, its friction force also decreases, and under the effect of article gravity, article drive rope automatically to fall to assigned address, then spacing stay cord is unclamped, and the rope that comes up.
Electric power lifting provided by the invention is from stop fixed pulley and use this fixed pulley to promote the method for article, compared with the existing technology comparatively have the following advantages: one, owing to comprising the pulley yoke with hook, described pulley yoke is provided with the fluted pulley of band, described pulley yoke upper side is provided with inverse u shape bracing frame, support frame as described above comprises upper plate and two side shields, lower end and the described pulley yoke lower end of support frame as described above are fixed and intersect certain angle with described pulley yoke, support frame as described above upper plate is provided with through hole, expansion link is provided with in described through hole, described expansion link lower end is provided with wheel fork, be provided with to compress between the wheel fork upper end and described upper plate of described expansion link and push up spring, described wheel fork is provided with the brake wheel with axis, described driving wheel inserts in the groove of described pulley, the side shield of support frame as described above is provided with along side shield direction, there is the groove of one fixed width, described axis two ends are positioned at described groove, at described side shield, pulley yoke side and described axis correspondence position are provided with annulus, the spacing stay cord that end is fixedly connected with axis is installed with in described annulus, during use, one end is fastened the free end of the rope of article from passing pulley away from bracing frame side and being placed in groove, axis is positioned at groove away from pulley yoke side, upwards top pressure compression top spring, is pressed in rope between brake wheel and pulley, and the free end of rope is delivered to ground, pull down the free end of rope, under the effect of rope friction force and compression top spring, axis is positioned at groove away from pulley yoke side, and article rise along with rope, when article arrive assigned address, stop pulling down rope, come up rope, rope slides along pulley to reversing sense, now, under the effect of friction force under the gravity of article drives, rope drives axis to move to pulley yoke side from groove away from pulley yoke side, axis is in the process of movement, and because the top by pulley is pressed, expansion link moves along on through hole, compression top spring, along with the top compressive strain of compression top spring, the increasing pressure between brake wheel and rope is large, until rope stops mobile, after construction completes, pull spacing stay cord, axis is made to get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, and its friction force also decreases, under the effect of article gravity, article drive rope to get back to ground, use convenient, and personnel take few, human cost reduces greatly, when article are lifted beyond assigned address, pull spacing stay cord, axis is made to get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, and its friction force also decreases, under the effect of article gravity, article drive rope automatically to fall to assigned address, then spacing stay cord is unclamped, and the rope that comes up, use convenient, its two, owing to being provided with " U " type clamping plate in described pulley yoke lower end, described clamping plate lower end is provided with binding bolt, when link up with bad extension, can clamping plate be clipped on cross-arm, then binding bolt be tightened, use convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of electric power provided by the invention lifting from stop fixed pulley.
Detailed description of the invention
Below in conjunction with accompanying drawing, the method that electric power proposed by the invention lifting promotes article from stop fixed pulley and this fixed pulley of use is described further.
As shown in Figure 1, electric power lifting is from the structural representation of stop fixed pulley.The lifting of this electric power comprises the pulley yoke 2 with hook 1 from stop fixed pulley, pulley yoke 2 is provided with the pulley 4 with groove 3, the side of pulley yoke 2 is provided with inverse u shape bracing frame 5, bracing frame 5 comprises upper plate 51 and two side shields 52, the lower end of bracing frame 5 and the lower end of pulley yoke 2 are fixed and intersect certain angle with pulley yoke 2, the upper plate 51 of bracing frame 5 is provided with through hole 53, expansion link 6 is provided with in through hole 53, the lower end of expansion link 6 is provided with wheel fork 7, be provided with to compress between wheel fork 7 upper end and upper plate 51 of expansion link 6 and push up spring 8, wheel fork 7 is provided with the brake wheel 10 with axis 9, driving wheel 10 inserts in the groove 3 of pulley 4, the side shield 52 of bracing frame 5 is provided with along side shield direction, there is the groove 54 of one fixed width, axis 9 two ends are positioned at groove 54, at side shield 53, pulley yoke 2 side and axis 9 correspondence position are provided with annulus 11, in annulus 11, are installed with the spacing stay cord 12 that end is fixedly connected with axis 9.During use, one end is fastened the free end of the rope of article from passing pulley 4 away from bracing frame 5 side and being placed in groove 3, axis 9 is positioned at the side of groove away from pulley yoke 5, upwards top pressure compression top spring 8, rope is pressed between brake wheel 10 and pulley 4, and the free end of rope is delivered to ground; Pull down the free end of rope, under the effect of rope friction force and compression top spring, axis 9 is positioned at the side of groove away from pulley yoke 5, and article rise along with rope; When article arrive assigned address, stop pulling down rope, come up rope, rope slides along pulley to reversing sense under the gravity of article drives, now, under the effect of friction force, rope drives axis 9 to move from the side of groove away from pulley yoke 5 to pulley yoke 5 side, axis 9 is in the process of movement, and owing to pressing by the top of pulley 4, expansion link 6 moves along on through hole 53, compression top spring, along with the top compressive strain of compression top spring 8, the increasing pressure between brake wheel and rope is large, until rope stops mobile; After construction completes, pull spacing stay cord, axis is made to get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, and its friction force also decreases, under the effect of article gravity, article drive rope to get back to ground, use convenient, and personnel take few, human cost reduces greatly; When article are lifted beyond assigned address, pull spacing stay cord, axis is made to get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, and its friction force also decreases, under the effect of article gravity, article drive rope automatically to fall to assigned address, then spacing stay cord is unclamped, and the rope that comes up, use convenient.
Be provided with " U " type clamping plate 13 in pulley yoke 2 lower end, clamping plate 13 lower end is provided with binding bolt 14, when linking up with bad extension, can clamping plate 13 be clipped on cross-arm, then binding bolt 14 be tightened, using convenient.
Use above-mentioned electric power to lift to comprise the following steps: from the method for stop fixed pulley lifting article
The method comprises the following steps:
The first step, dead sheave
Hook is suspended on steel wire or cross-arm;
Second step, by the rope one end with article through pulley
One end is fastened the free end of the rope of article from passing pulley away from bracing frame side and being placed in groove, axis is positioned at groove away from pulley yoke side, upwards top pressure compression top spring, is pressed in rope between brake wheel and pulley, and the free end of rope is delivered to ground;
3rd step, pulls down the free end of rope
Pull down the free end of rope, under the effect of rope friction force and compression top spring, axis is positioned at groove away from pulley yoke side, and article rise along with rope;
4th step, stops pulling down rope
When article arrive assigned address, stop pulling down rope, come up rope, rope slides along pulley to reversing sense, now, under the effect of friction force under the gravity of article drives, rope drives axis to move to pulley yoke side from groove away from pulley yoke side, axis is in the process of movement, and because the top by pulley is pressed, expansion link moves along on through hole, compression top spring, along with the top compressive strain of compression top spring, the increasing pressure between brake wheel and rope is large, until rope stops mobile;
5th step, construction
Top-operation personnel stop, after assigned address, constructing at article;
Article are sent back to by the 6th step
Pull spacing stay cord, make axis get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, and its friction force also decreases, and under the effect of article gravity, article drive rope to get back to ground.
When the height that article rise to by described 4th step is higher than assigned address, pull spacing stay cord, axis is made to get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, its friction force also decreases, and under the effect of article gravity, article drive rope automatically to fall to assigned address, then spacing stay cord is unclamped, and the rope that comes up.
Protection scope of the present invention is not only confined to above-described embodiment, as long as lift from stop fixed pulley with electric power of the present invention and to use this fixed pulley to promote the method for article identical, just drops on the scope of protection of the invention.
Claims (4)
1. electric power lifting is from stop fixed pulley, comprise the pulley yoke with hook, described pulley yoke is provided with the fluted pulley of band, it is characterized in that: described pulley yoke upper side is provided with inverse u shape bracing frame, support frame as described above comprises upper plate and two side shields, lower end and the described pulley yoke lower end of support frame as described above are fixed and intersect certain angle with described pulley yoke, support frame as described above upper plate is provided with through hole, expansion link is provided with in described through hole, described expansion link lower end is provided with wheel fork, be provided with to compress between the wheel fork upper end and described upper plate of described expansion link and push up spring, described wheel fork is provided with the brake wheel with axis, described driving wheel inserts in the groove of described pulley, the side shield of support frame as described above is provided with along side shield direction, there is the groove of one fixed width, described axis two ends are positioned at described groove, at described side shield, pulley yoke side and described axis correspondence position are provided with annulus, in described annulus, are installed with the spacing stay cord that end is fixedly connected with axis.
2. electric power lifting according to claim 1 is from stop fixed pulley, it is characterized in that: be provided with " U " type clamping plate in described pulley yoke lower end, described clamping plate lower end is provided with binding bolt.
3. use the electric power lifting described in claim 1 or 2 to promote the method for article from stop fixed pulley, it is characterized in that: the method comprises the following steps:
The first step, dead sheave
Hook is suspended on steel wire or cross-arm;
Second step, by the rope one end with article through pulley
One end is fastened the free end of the rope of article from passing pulley away from bracing frame side and being placed in groove, axis is positioned at groove away from pulley yoke side, upwards top pressure compression top spring, is pressed in rope between brake wheel and pulley, and the free end of rope is delivered to ground;
3rd step, pulls down the free end of rope
Pull down the free end of rope, under the effect of rope friction force and compression top spring, axis is positioned at groove away from pulley yoke side, and article rise along with rope;
4th step, stops pulling down rope
When article arrive assigned address, stop pulling down rope, come up rope, rope slides along pulley to reversing sense, now, under the effect of friction force under the gravity of article drives, rope drives axis to move to pulley yoke side from groove away from pulley yoke side, axis is in the process of movement, and because the top by pulley is pressed, expansion link moves along on through hole, compression top spring, along with the top compressive strain of compression top spring, the increasing pressure between brake wheel and rope is large, until rope stops mobile;
5th step, construction
Top-operation personnel stop, after assigned address, constructing at article;
Article are sent back to by the 6th step
Pull spacing stay cord, make axis get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, and its friction force also decreases, and under the effect of article gravity, article drive rope to get back to ground.
4. the method for connecting power line according to claim 3, it is characterized in that: when the height that article rise to by described 4th step is higher than assigned address, pull spacing stay cord, make axis get back to groove away from pulley yoke side, the pressure of driving wheel and rope reduces greatly, and its friction force also decreases, under the effect of article gravity, article drive rope automatically to fall to assigned address, then unclamp spacing stay cord, and the rope that comes up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649915.XA CN105152062B (en) | 2015-10-10 | 2015-10-10 | The method that electric power lifting lifts article from stop fixed pulley and using the fixed pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649915.XA CN105152062B (en) | 2015-10-10 | 2015-10-10 | The method that electric power lifting lifts article from stop fixed pulley and using the fixed pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105152062A true CN105152062A (en) | 2015-12-16 |
| CN105152062B CN105152062B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510649915.XA Active CN105152062B (en) | 2015-10-10 | 2015-10-10 | The method that electric power lifting lifts article from stop fixed pulley and using the fixed pulley |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3756565A (en) * | 1970-11-24 | 1973-09-04 | Tomy K K | Pulley block with brake |
| CN103449326A (en) * | 2013-09-09 | 2013-12-18 | 国家电网公司 | Rope wheel with self-locking device |
| WO2014084207A1 (en) * | 2012-11-30 | 2014-06-05 | 株式会社キトー | Chain block and load chain |
| CN203859445U (en) * | 2014-05-21 | 2014-10-01 | 国家电网公司 | Unidirectional brake pulley device |
| CN204040891U (en) * | 2014-08-01 | 2014-12-24 | 国家电网公司 | There is the electric power rope ladder pulley gear of braking function |
| CN204057829U (en) * | 2014-07-09 | 2014-12-31 | 中国建筑第八工程局有限公司 | For the transport of materials device of height scaffolding |
| CN205023787U (en) * | 2015-10-10 | 2016-02-10 | 国网河北省电力公司衡水供电分公司 | Electric power hoist and mount are from locking fixed pulley |
-
2015
- 2015-10-10 CN CN201510649915.XA patent/CN105152062B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3756565A (en) * | 1970-11-24 | 1973-09-04 | Tomy K K | Pulley block with brake |
| WO2014084207A1 (en) * | 2012-11-30 | 2014-06-05 | 株式会社キトー | Chain block and load chain |
| CN103449326A (en) * | 2013-09-09 | 2013-12-18 | 国家电网公司 | Rope wheel with self-locking device |
| CN203859445U (en) * | 2014-05-21 | 2014-10-01 | 国家电网公司 | Unidirectional brake pulley device |
| CN204057829U (en) * | 2014-07-09 | 2014-12-31 | 中国建筑第八工程局有限公司 | For the transport of materials device of height scaffolding |
| CN204040891U (en) * | 2014-08-01 | 2014-12-24 | 国家电网公司 | There is the electric power rope ladder pulley gear of braking function |
| CN205023787U (en) * | 2015-10-10 | 2016-02-10 | 国网河北省电力公司衡水供电分公司 | Electric power hoist and mount are from locking fixed pulley |
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| Publication number | Publication date |
|---|---|
| CN105152062B (en) | 2017-06-20 |
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