CN204407795U - A kind of portable rural power grids line-sag adjusting device - Google Patents
A kind of portable rural power grids line-sag adjusting device Download PDFInfo
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- CN204407795U CN204407795U CN201520156843.0U CN201520156843U CN204407795U CN 204407795 U CN204407795 U CN 204407795U CN 201520156843 U CN201520156843 U CN 201520156843U CN 204407795 U CN204407795 U CN 204407795U
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Abstract
A kind of portable rural power grids line-sag adjusting device, comprise frames, frames is provided with winding drum, winding drum is wound with rope, winding drum one end is provided with the ratchet mechanism with its coaxial rotation, and the winding drum other end is provided with the gear wheel with its coaxial rotation; Frames is provided with kinking axle, kinking next to axis limit is provided with the pinion with its coaxial rotation, and pinion engages with gear wheel, and pinion, gear wheel form transmission mechanism, pinion being installed with crank, frames being provided with the fixed pulley for leading.The utility model provides a kind of portable rural power grids line-sag adjusting device, and this device has simple to operate, large from heavy and light, load capacity, and sag adjustment precision is high, the construction intensity that alleviates operating personnel and ensure the outstanding advantages such as working security.
Description
Technical field
A kind of portable rural power grids line-sag adjusting device of the utility model, belongs to the operation of rural power grid distribution line, construction and maintenance field, is particularly useful for the sag adjustment that remote mountain areas that power-equipment cannot transport to and distribution line need when crossing over large river.
Background technology
Distribution line is the important component part of electric power system, and they are responsible for the challenge of powering to town and country, and its safe and reliable operation will directly affect the daily life quality of the national economic development and the people.But, rural power grid distribution line wide, many, the region of some quality that is large and equipment is uneven, these all can bring great challenge to the operation efficiency of construction of network operation personnel; Meanwhile, distribution line cannot the particular surroundings of communications and transportation be transmitted electricity to user by power-equipments such as remote mountain areas mostly, and the equipment of the not convenient and power supply bureau in countryside of communications and transportation is mostly old and lack.Therefore, when electric operating personnel carry out sag adjustment to rural power grids circuit, in order to improve sag adjustment precision and efficiency of construction, designing a kind of portable sag adjustment device just becomes the problem needing solution badly.
For the sag adjustment of circuit, sag adjustment Work tool of the prior art, mainly concentrates on the transmission line field that electric pressure is higher; Or when sag is adjusted, there is method complexity, inconvenient operation mostly, construction be dumb, instrument is heavy, sag adjustment precision is low and the feature of cost intensive, and at present a kind of practicable method is also lacked to the sag adjustment of rural power grids circuit and a set ofly to save labor, the Work tool that safe and reliable, cost is low.
Summary of the invention
A kind of practicable Work tool is provided, also in order to convenient use under the disadvantageous construction environments such as mountain area, river Great span in order to give the sag adjustment of rural power grids circuit.The utility model provides a kind of portable rural power grids line-sag adjusting device, conventional rural power grids circuit can not only be used for carry out sag adjustment and use as interim small-sized tight, line concentration hauling machine, and be applicable to the power-equipments such as remote mountain areas and to be beyond one's reach special operation environment.This device has simple to operate, large from heavy and light, load capacity, and sag adjustment precision is high, the construction intensity that alleviates operating personnel and ensure the outstanding advantages such as working security.
The technical scheme that the utility model adopts is:
A kind of portable rural power grids line-sag adjusting device, comprise frames, frames is provided with winding drum, winding drum is wound with rope, winding drum one end is provided with the ratchet mechanism with its coaxial rotation, and the winding drum other end is provided with the gear wheel with its coaxial rotation; Frames is provided with kinking axle, kinking next to axis limit is provided with the pinion with its coaxial rotation, and pinion engages with gear wheel, and pinion, gear wheel form transmission mechanism, pinion being installed with crank, frames being provided with the fixed pulley for leading.
Described frames is provided with shackle.
Described winding drum is provided with the groove for arranging rope.
Described rope is that macromolecule Di Nima restricts.
Described ratchet mechanism comprises ratchet, check pawl, and ratchet mechanism side is provided with change-over key.
A kind of rural power grids line-sag method of adjustment, after being connected with conductor wire end one end of rope, rope through the fixed pulley for leading, then is wound around 4 ~ 5 circles by the other end of rope on kinking axle, by rope around the groove entering winding drum, rope can be arranged on winding drum in an orderly manner; When rope on winding drum after entering 3-4 circle, by the top of rope through threading shackle, utilize shackle and drill rod to be fixed on ground; Operating personnel's hand-power shake crank provides initial drive force for device, and utilize the transmission of transmission mechanism realizable force, rope is constantly around on winding drum the most at last; When rotating, the ratchet mechanism coaxial with winding drum can realize the instant reverse locking function of winding drum, is provided with commutation knob, can controls releasing orientation or the locking state of ratchet mechanism on the side of ratchet mechanism.
A kind of rural power grids line-sag method of adjustment, comprises the following steps:
Step one: after completing Poling Construction work, be fixed on ground at certain end of unwrapping wire by wire shackle and drill rod, the other end and shackle link together;
Step 2: be connected with suspension hook by the rope end of preparation, then suspension hook and shackle are linked together, realizes wire and device is directly connected to each other, and then starts to carry out line concentration, stringing and sag adjustment work;
Step 3: the line concentration length each grade of sag calculated being converted into rope, does effective terrestrial reference note in the termination red pigment of rope.
Step 4: by rope top through being fixed on the fixed pulley that being used in frames lead, the instantaneous angular of rope on kinking axle can be adjusted by described fixed pulley, making around the rope entered all the time in the center of kinking axle; Prevent that larger deviation angle (can reduce rope like this around the larger angle of deviation of fashionable generation, prevent rope from producing larger friction with guiding fixed pulley, the useful life of shortening rope.
Step 5: enclosed around 4-5 on kinking axle by rope, in case produce larger cornerite; Prevent because load is excessive and cause rope slipping phenomenon.Meanwhile, the excessive frictional resistance that causes of cornerite also to be prevented excessive, make kinking axle can not normal rotation and affect line concentration work.
Step 6: rope from kinking axle be wound around after, then around to band reeded winding drum on; It should be noted that the velocity of rotation of reel should remain a constant speed as far as possible, prevent the irregular alignment of rope.
Step 7: after rope is wound around 3-4 circle on winding drum, by the top of rope through shackle, then utilize drill rod and shackle to be fixed on the ground by rope;
Step 8: in the process of sag adjustment, with winding drum, strand mill line concentration is carried out to rope, operating personnel shakes crank evenly, to provide input queued switches power, power is delivered on pinion, gear wheel is driven again by pinion, gear wheel and winding drum are coaxial rotation, produce moment of friction by the frictional force between winding drum and rope, after input queued switches moment is transmitted by gear mechanism, by overcome friction square thus drive winding drum rotate constantly, by rope in an orderly manner around entering; Meanwhile, the other end of winding drum has the ratchet mechanism with its coaxial rotation, with realize winding drum real-time reverse locking and control rope around entering length, when avoiding fortuitous event to occur, manual crank reverses suddenly accidental injury operation.
Step 9: frames there is also mounted check pawl, check pawl side there is also mounted commutation knob, loosens or locking state, realize the difference in functionality of line concentration and unwrapping wire to control ratchet;
Step 10: when the load needing to promote is larger, by Work tools such as drill rods, frames can be fixed on the ground; Meanwhile, drill rod inserts the degree of depth on ground must not lower than 50cm, to ensure stability and the fail safe of work progress.
In step 4, fixed pulley for leading is arranged on the center of frames front end, align with the central point of kinking axle in its center, can ensure that macromolecule Di Nima rope is that centering is around entering, to reduce angle of deviation, avoid producing between rope and guiding fixed pulley rubbing for a long time, improve the useful life of rope.
In step 7, when rope is after winding drum is wound around 3-4 circle, by the top of rope through shackle, shackle and drill rod is utilized to be fixed on the ground by rope.
In step 8, in power drive mechanism, pinion is as driving wheel, and gear wheel is driven pulley, utilizes the feature that gear combination mechanism gearratio is large, forms the mechanism of the laborsaving of whole device and transmitting force.
In step 8, winding drum and ratchet mechanism are coaxial rotation, and ratchet can the rotation direction of regulation and control winding drum in real time; When preventing winding drum from reversing, operating personnel is accidentally injured in the unexpected reversion of crank, ensure that the fail safe of construction.
In step 9, frames there is also mounted check pawl, check pawl is coaxial rotation with commutation knob, and in the process of sag adjustment, commutation knob mainly controls ratchet to be loosened or locking state, to realize the object of line concentration and unwrapping wire.
In step 10, crank and kinking axle are coaxial rotation, and both constitute lever.Operating personnel utilizes lever principle, uses less power just can provide enough large initial drive force for whole device.
In step 5, should rope to be wound around on axle around 4-5 circle in case produce larger cornerite, to prevent because load is excessive and occur rope slipping phenomenon.Meanwhile, the excessive frictional resistance caused of cornerite also to be prevented excessive, make kinking axle not rotate and to affect normal line concentration.
In some distribution line engineering, the diameter of wire excessive (namely the lifting load of device is larger) adjusting sag may be needed, now, in order to ensure in work progress that device can smooth working, drill rod should be utilized frames to be fixed on the ground, and the degree of depth that drill rod inserts ground must not lower than 50cm.
A kind of portable rural power grids line-sag adjusting device of the utility model, technique effect is as follows:
1), gear mechanism is adopted to carry out actuating force transmission.In gear drive, pinion and manual crank are coaxial rotation, therefore can be transferred on gear reduction by actuating force, and reaching slows down increases the effect of square.
2) pinion, is adopted to drive gear wheel to carry out line concentration.Manual crank have employed lever principle, according to actual needs, can suitably lengthen or shorten the length of crank, to alleviate the labour intensity of workman and to provide larger input torque.Wherein, manual crank, gear wheel is all connected with frames with nut with pinion etc., and they are all detachable, can alleviate operation intensity when carrying.Note, the depth of groove on winding drum and width all should be reasonable, enable rope in an orderly manner around entering groove and non-slip.
3), according to frictional drive theory, in fact line concentration winding drum is equivalent to friction pulley.By rope is wound around a few circle in advance on cylinder, enough large frictional force can be provided like this for cable traction, it can by the tension force of end, be converted into the moment of friction that overcomes rope and cylinder thus drive rope, namely input queued switches torque only needs overcome friction square (fricative between rope and winding drum), can drive rope in an orderly manner around entering.
4), adopt the compound mode of lever principle, gear mechanism and ratchet mechanism, the functional requirement of line-sag adjustment can not only be met, and enormously simplify apparatus structure; Meanwhile, the gear wheel in device, pinion, crank are detachable,
Alleviate device deadweight, be convenient to a dead lift, the labour intensity of operating personnel can be alleviated, be particularly suitable for the manual work environment of remote mountain areas.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model device;
Fig. 2 is the rack construction schematic diagram of the utility model device;
Fig. 3 is the line concentration reel structure schematic diagram of the utility model device;
Fig. 4 is the gear wheel structural representation of the utility model device;
Fig. 5 is the pinion structure schematic diagram of the utility model device;
Fig. 6 is the pinion three-dimensional structure schematic diagram of the utility model device;
Fig. 7 is the ratchet mechanism schematic diagram of the utility model device;
Fig. 8 is the ratchet structure schematic diagram of the utility model device;
Fig. 9 is Suspension hook structure schematic diagram described in the present embodiment;
Figure 10 is the shackle structural representation of the utility model device.
Embodiment
As shown in Fig. 1 ~ Figure 10, a kind of portable rural power grids line-sag adjusting device, includes frames 1, and the front-end and back-end of frames 1 are separately installed with each and every one the threading shackle 6 of fixed pulley 2, two of guiding; Be provided with a winding drum 7 in the centre position of frames 1, macromolecule Di Nima winding drum 7 being wound with a fixing turn restricts, and winding drum 7 is coaxial rotation with gear wheel 8 and ratchet mechanism (ratchet 5 and check pawl 4); The side of check pawl 4 is provided with commutation knob 3; Winding drum 7 side is also provided with pinion 9 and the kinking axle 11 with pinion 9 coaxial rotation, also have simultaneously one with the crank 10 that initial drive force is provided of pinion 9 coaxial rotation; Gear wheel 8 and pinion 9 together constitute gear train assembly, are device transferring power.
After the group work of standing of shaft tower completes, first use manpower spreading guiding rope or pull rope, then with manpower or machinery (tug) spreading conducting wire, then one end of wire several shackles (shown in Figure 10) and drill rod are fixed on ground.Meanwhile, the mode of the wire other end by knotting is reliably connected with shackle (shown in Figure 10).In wire gradually lifting process, translational speed and the position of red pigment be noted, when reaching sag numerical value, timely arresting stop ground line concentration.
Macromolecule Di Nima rope top is connected with suspension hook (shown in Fig. 9), then by shown with shackle Figure 10 of wire end for suspension hook (shown in Fig. 9)) be connected, then start sag adjustment.
By rope end through the fixed pulley 2 of guiding being installed in frames 1, the instantaneous angular of rope on kinking axle 11 can be adjusted by the fixed pulley 2 of guiding, make the center being in kinking axle 11 around the rope entered all the time, prevent that larger deviation angle (can reduce rope around the larger angle of deviation of fashionable generation, prevent from producing larger friction between rope and frames 1, shorten the useful life of rope, there is good economy).Again rope is wound around on kinking axle 11 4-5 circle, to ensure enough large cornerite, prevents because load is excessive and rope slipping phenomenon occurs.Meanwhile, also to prevent cornerite from exceeding predetermined value and cause frictional resistance excessive, make kinking axle 11 can not rotate and affect the line concentration of device.
When constructing, crank 10 and both kinking axles 11 form a lever, utilize lever principle, manpower are converted into the initial drive force of whole sag adjustment device, and the starting force that crank 10 provides drives the pinion 9 with kinking axle coaxial rotation.Pinion 9 and gear wheel 8 form the gear power transmission mechanism of an external toothing jointly, and the rotation of pinion 9 can drive gear wheel 8, both common transferring power.Gear wheel 8 and winding drum 7 are coaxial rotation, when people is when shaking manual crank 10, by parts such as kinking axle 11, gear drive and winding drums 7, rope is slowly wrapped on winding drum 7 in an orderly manner, realize the lifting of wire, according to design sag, then by rope around entering corresponding design length.
Winding drum 7 other end is provided with and the ratchet mechanism of its coaxial rotation (ratchet 5 and check pawl 4), to realize the function of instant reverse locking rope, ensures the fail safe of constructing operation like this; Meanwhile, because the spacing of ratchet 5 is less, can ensure that the length of each line concentration is all definite value like this, and the speed of line concentration can be controlled.
Gear ratio in the present embodiment is 3, and its value is less, it reduces line concentration speed, but under equal conditions improves the load capacity of device and can reduce the construction intensity of operating personnel.Adopt crank 10 driving can realize operating personnel to work constantly, improve the efficiency of construction operation, there is good economic benefit.
At rope after entering line concentration winding drum 2-3 circle, by rope ends through threading shackle 6, drill rod and shackle is utilized to be fixed on the ground by rope.When the line conductor diameter needing to adjust sag is excessive, in order to the stability in line concentration process and fail safe, need frames 1 to utilize drill rod and ground to fix, and the degree of depth that drill rod inserts ground must not lower than 50cm.
Above-mentioned ratchet mechanism side, commutation knob 3 with check pawl 4 coaxial rotation is also installed, when rope tightens up excessive, commutation knob 3 can be stirred, check pawl 4 is unclamped with ratchet 5 be connected, when reach winding drum 7 can freely unwrapping wire and line concentration time, just can again stir knob 3, realize the instant locking of winding drum 7.
Adopt above-mentioned portable rural power grids line-sag adjusting device, can be widely used in the unapproachable particular job environment of the power-equipments such as remote mountain areas, or only can rely on the sag adjustment operating environment manually completed.In handling process, because gear wheel 8, pinion 9 and manual crank 10 are all detachable, therefore, when construction operation, 2 staff just can complete sag adjustment operation.Through field experiment and result of calculation known, maximum load capability of the present utility model can reach 60 kN, and the precision of sag adjustment can reach about 5cm.
Below in conjunction with field experiment, the utility model is described further.
With city of a Hubei Province 10kV rural power grid distribution line for construction embodiment, carry out on-the-spot sag adjustment experiment.Usually, 10kV and with the span of line mostly within the scope of 40 ~ 80m, the regular ways such as employing just can carry out sag observation.Unwrapping wire about the length 3km of this example, there is tangent suspension tower 15 base centre, and each grade of sag computing value is about 1.4m.Utilize portable rural power grids line-sag adjusting device of the present utility model to promote and adjust conducting wire sag value, its final adjusted value is 1.35m.Carry out analysis to sag computing value and experiment value known, this device can carry out sag adjustment really, and can improve the precision of sag, ensure rural power grid distribution line over the ground or other cross over the effective and safe distance of things.
The concrete operations mode of this example is as follows: after the setting-out work of whole piece circuit completes, and ground is fixed in wire end shackle 6 and drill rod, is utilized by the other end shackle 6 to be connected by the mode of knotting.Macromolecule Di Nima rope suspension hook (shown in accompanying drawing 10) is connected in the place of spaciousness by operating personnel effectively, is then connected with the shackle on wire by suspension hook (shown in accompanying drawing 10).
By the top of rope through the fixed pulley 2 being used for leading, after again rope being wound around on kinking axle 11 4-5 circle, then around in the groove of winding drum 7, finally, by rope top through threading shackle, utilize shackle and drill rod that ground is fixed in one end of rope, whole like this device just links together with the wire of rural power grids circuit.After all preparation completes, shake manual crank by 1 operating personnel evenly with hand, lentamente rope is collected, by rope in an orderly manner around on line concentration winding drum.By the movement of 1 sag observation personnel at secure visual position detection red-label, remind operating personnel whether sag reaches design load in time.Meanwhile, due to the spacing of ratchet less (5cm), therefore, can by precision controlling in 5cm in the process of sag adjustment.
By the experimental verification of this example, show that this portable device can realize the function of sag adjustment.Meanwhile, known in conjunction with actual experiment, the gear mechanism of this device and crank 10 are all detachable, and the spacing minimum value of ratchet is 5cm.Therefore, this device have simple to operate, from heavy and light, be convenient to carrying, sag adjustment precision is high, improve efficiency of construction and the clear superiority such as practical, is particularly suitable for the construction environment that the large-sized power plants such as some remote mountain areas, southwest cannot arrive.
Claims (5)
1. a portable rural power grids line-sag adjusting device, comprise frames (1), it is characterized in that, frames (1) is provided with winding drum (7), (7) are wound with rope to winding drum, winding drum (7) one end is provided with the ratchet mechanism with its coaxial rotation, and winding drum (7) other end is provided with and the gear wheel of its coaxial rotation (8); Frames (1) is provided with kinking axle (11), kinking axle (11) side is provided with and the pinion of its coaxial rotation (9), pinion (9) engages with gear wheel (8), pinion (9), gear wheel (8) form transmission mechanism, pinion (9) being installed with crank (10), frames (1) being provided with the fixed pulley (2) for leading.
2. a kind of portable rural power grids line-sag adjusting device according to claim 1, it is characterized in that, described frames (1) is provided with shackle (6).
3. a kind of portable rural power grids line-sag adjusting device according to claim 1, it is characterized in that, described winding drum (7) is provided with the groove for arranging rope.
4. a kind of portable rural power grids line-sag adjusting device according to claim 1, it is characterized in that, described rope is that macromolecule Di Nima restricts.
5. a kind of portable rural power grids line-sag adjusting device according to claim 1, it is characterized in that, described ratchet mechanism comprises ratchet (5), check pawl (4), and ratchet mechanism side is provided with change-over key (3), check pawl (4) and commutation knob (3) coaxial rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156843.0U CN204407795U (en) | 2015-03-19 | 2015-03-19 | A kind of portable rural power grids line-sag adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156843.0U CN204407795U (en) | 2015-03-19 | 2015-03-19 | A kind of portable rural power grids line-sag adjusting device |
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| Publication Number | Publication Date |
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| CN204407795U true CN204407795U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520156843.0U Expired - Fee Related CN204407795U (en) | 2015-03-19 | 2015-03-19 | A kind of portable rural power grids line-sag adjusting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716602A (en) * | 2015-03-19 | 2015-06-17 | 三峡大学 | Portable type rural-power-grid circuit sag adjustment device |
| CN109626122A (en) * | 2018-12-24 | 2019-04-16 | 江苏省送变电有限公司 | Enlightening Nima rope ground tightening device |
| CN112615304A (en) * | 2020-12-02 | 2021-04-06 | 郑州东辰科技有限公司 | Transmission conductor sag adjusting device |
-
2015
- 2015-03-19 CN CN201520156843.0U patent/CN204407795U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716602A (en) * | 2015-03-19 | 2015-06-17 | 三峡大学 | Portable type rural-power-grid circuit sag adjustment device |
| CN104716602B (en) * | 2015-03-19 | 2017-11-14 | 三峡大学 | A kind of portable rural power grids line-sag adjusting apparatus |
| CN109626122A (en) * | 2018-12-24 | 2019-04-16 | 江苏省送变电有限公司 | Enlightening Nima rope ground tightening device |
| CN112615304A (en) * | 2020-12-02 | 2021-04-06 | 郑州东辰科技有限公司 | Transmission conductor sag adjusting device |
| CN112615304B (en) * | 2020-12-02 | 2022-07-15 | 郑州东辰科技有限公司 | Transmission conductor sag adjusting device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20160319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |