CN201699352U - Tool for electrified replacing linear monolithic insulator - Google Patents
Tool for electrified replacing linear monolithic insulator Download PDFInfo
- Publication number
- CN201699352U CN201699352U CN2010202248687U CN201020224868U CN201699352U CN 201699352 U CN201699352 U CN 201699352U CN 2010202248687 U CN2010202248687 U CN 2010202248687U CN 201020224868 U CN201020224868 U CN 201020224868U CN 201699352 U CN201699352 U CN 201699352U
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Abstract
The utility model discloses a tool for electrified replacing a linear monolithic insulator, which comprises a hydraulic screw-rod device and a door-sealing clamping body (11). The tool is characterized in that: the door-sealing clamping body is installed in two pair of clamping groove parts (1, 10) at both ends of the two parallel hydraulic screw-rod devices; a long frame body is formed. The door-sealing clamping body (11) is a circular-ring shaped clamping body formed by an upper semi-circular ring and a lower semi-circular ring (20, 16). In the utility model, components of an insulator string can be fully used to realize replacing of the linear monolithic insulator through an indirect operation method; the number of tools for electrified working is reduced; the labor intensity is reduced, and the operation efficiency is increased. Through adopting the above scheme, any insulator in the insulator string can be replaced; therefore, the scheme provided by the utility model has good applicability.
Description
Technical field
The utility model belongs to a kind of 500kV charged for replacement straight line monolithic insulator instrument.
Background technology
At changing 500kV transmission line straight line monolithic insulator, all be to take to have a power failure to change at present, power tool is to adopt monolithic insulator jig to change.500kV electric transmission line isolator great majority have all adopted the tempering insulator at present, from the operation present situation, tempering insulator self-destruction rate is higher, and the power failure chance in 1 year of 500kV transmission line is seldom, poor insulator will can not get changing timely, for the line security operation has stayed hidden danger.According to the architectural feature of 500kV circuit straight line insulator string, insulator string length is between 5-6m, and the charged for replacement operating personnel directly enters electric field replacing safe distance and can not meet the demands, and is difficult to carry out.So, change 500kV circuit straight line monolithic insulator indirectly and have only the novel hydraulic of the utilization screw mandrel and the kit such as jig of sealing up a door to realize.
Summary of the invention
The purpose of this utility model just provides a kind of 500kV charged for replacement straight line monolithic insulator instrument.Replacing with poor insulator sheet in the tempering insulator string that solves 5-6m length in the 500kV transmission line reaches easy-to-operate, changes in time.
The technical scheme that realizes above-mentioned purpose is as follows:
Charged for replacement straight line monolithic insulator instrument comprises the hydraulic pressure lead screw device and the card body of sealing up a door; The card body of sealing up a door is installed in two pairs of draw-in groove spares at two hydraulic pressure screw mandrel two ends arranged side by side; Constitute a long frame shape; The card body of sealing up a door constitutes annular card body by two semicircular ring up and down, at card body two ends the linking arm that is connected with the hydraulic pressure lead screw device is arranged, and has the keyhole that is connected with hydraulic pressure lead screw device draw-in groove near the arm end.The left end of the following semi-ring of card body and the joint portion of last semi-ring are rotationally connected with rotating shaft, and descend semi-ring and rotating shaft to fix as one, and the right-hand member of semi-ring is connected with the chucking that the joint portion of last semi-ring constitutes by cam lock holding mechanism under the card body; The linking arm and the last semi-ring that specifically are two ends, the card body left and right sides are made of one, semi-ring is made a cavity that can hold cam lock holding mechanism with the access section of following semi-ring on the card body, rotating manner is installed lock cam in lock of the cavity internal fixation of Lower Half, the cavity of the first half; Be positioned on the linking arm of card body cavity top and have the cylindrical cavity that stage clip card post is installed, the linking arm middle part that is positioned at the cavity outside is opened rivet hole, cam return extension spring fixing rivet is installed, and the middle part is connected returning pull-spring with the rivet lower end behind the cam; Cam is made semicircular body, and there is trip the lower end, and there is the Ka Tai that cooperates with stage clip card post the middle and upper part.The card post compression spring sleeve of the cam top of card body is installed in the cylindrical cavity at the card post first half, fixedlys connected with card post middle part in the stage clip lower end, and the stage clip upper end becomes compressive state spacing at the cylindrical cavity top, and card capital end is equipped with the draw ring of control card post.Lower Half also is installed with the lever that there is annulus a upper end on the card body in the rotating shaft at the left end place of being rotationally connected, and itself and rotating shaft fix as one, together with semi-ring synchronization action under the rotating shaft together.
The hydraulic pressure lead screw device is made of two covers, and every cover hydraulic pressure lead screw device all adopts existing hydraulic pump unit, promptly is made of valve body oil cylinder, the end cap, hydraulic pressure screw component, reversal valve etc. of hand pump assembly, handle, hydraulic pump valve body by operation hydraulic pump operation.Main points are to be manufactured with in the end cap outer end of hydraulic pump cylinder body to decide draw-in groove spare, and being equipped with on the hydraulic pressure screw mandrel can be with the flexible moving draw-in groove spare of hydraulic pressure screw mandrel, and the last lower wall of two draw-in grooves has connecting hole.
By cooperating of cam card and associated components, make the two halves up and down of card body in use constitute a circular card chamber, block insulator string, operation hydraulic pressure lead screw device is utilized the tension and the loose function of screw mandrel, reaches the purpose of changing insulator string or single insulator.Also can after the replacing of finishing insulator string, open the circular card chamber easily.Card body and the insulator string of more finishing changing are broken away from.
Utilize the present technique device to have realized indirect operating method replacing straight line monolithic insulator, reduced the quantity of tools for live working, reduced labour intensity, improved operating efficiency fully by insulator string self element.Adopt this operation scheme both can change, so this operation scheme has applicability preferably to any sheet insulator in a string.
Description of drawings
Fig. 1 is charged for replacement straight line monolithic insulator instrument overall structure and three-dimensional shape figure;
Fig. 2 is the annular card body structure figure that seals up a door;
Fig. 3 is the seal up a door locking mechanism structure figure of card body of annular.
Embodiment
Below in conjunction with accompanying drawing, as embodiment, to technical scheme with manipulate method and specify.
With reference to Fig. 1, change straight line monolithic insulator instrument and constitute by two cover hydraulic pressure lead screw device and former and later two annulars card body 11 of sealing up a door.Wherein the hydraulic pressure lead screw device is to adopt and the identical structure of existing small-sized hydraulic pressure screw mandrel, by formations such as hand pump assembly 6, handle 4, hydraulic pump valve body oil cylinder 8 and end cap 9 thereof, hydraulic pressure screw component 15, reversal valves 7.Decide draw-in groove spare 10 what the card body was sealed up a door in the affixed installation in valve body cylinder cover 9 outer ends of device, at the seal up a door moving draw-in groove spare 1 of card body of the screw mandrel 13 termination suits of device and a fixedly connected installation, operating grip 4 tops of hydraulic pressure screw mandrel 13 are manufactured with an annulus 5, drive hydraulic pump works so that spur handle 4 indirectly up and down by action bars in using, promote hydraulic pressure screw mandrel 13 and elongate or shorten.Transmit the power of synchronous operations to being stuck in two annulars on insulator string card body 11 of sealing up a door, thereby change the distance of two 11 of card bodies of sealing up a door, make the insulator sheet to be replaced that is between two card bodies be in relaxed state, be easy to change, the reversal valve hand lever 14 that also can operate the hydraulic pressure screw mandrel between the new insulator sheet after the replacing and original insulator string rotates reversal valve 7, suffered tension force is consistent gradually between new insulator sheet of assist changing or insulator string and original insulator string, again detaching device.Two draw-in groove spares 1 and 10 are opened circular hole on the cell wall up and down, and screw 2 easy to use is installed the linking arm 12 of the card body 11 of sealing up a door.
With reference to Fig. 1,2,3, the card body 11 of sealing up a door is used to be fastened in insulator sheet to be replaced two ends, and insulator sheet promptly to be replaced is between the two card bodies 11, by the Telescopic of screw mandrel 13, allows insulator sheet to be replaced be in relaxed state, again with its replacing.The circular card chamber of card body 11 will adapt to insulator string and is inserted in it so annular is sealed up a door, and there is the linking arm 12 in the draw-in groove spare 1 or 10 that snaps in hydraulic pressure lead screw device two ends at card body two ends, and linking arm 12 ends are identical consistent with the draw-in groove size.The last semi-ring 20 of card body 11 of sealing up a door is made one with linking arm 12, and the left end of following semi-ring 16 snaps in the card chamber with the connecting portion of last semi-ring 20 and rotating shaft 17 is fixing to be constituted and last semi-ring is rotationally connected by being connected; While also fixedly connected butt head in this rotating shaft 17 has the lever 19 of annulus, i.e. lever 19, rotating shaft 17 fixes as one with following semi-ring 16.Lever 19 can drive down the semi-ring rotation during use, and reaching closed with last semi-ring is annulus card body.The outer end points place that is positioned at the vertical diameter line of semi-ring 20 1 suspension ring 3 that are spirally connected are to be used for hanging the support component of entire tool in operational environment when changing the insulator sheet.
With reference to Fig. 2,3, the semi-ring right-hand member adopts retaining mechanism to connect up and down, is two parts that semi-ring constitutes complete circle or separates up and down.Retaining mechanism comprises cam 27 and control assembly thereof, specifically be making a cavity 29 that can allow cam 27 rotate therein on the contact site median surface of semi-ring right-hand member up and down, cam rotation being installed in the cavity 29 by the camshaft 23 of fixedlying connected with last semi-ring 20.In cavity 29, be in the position of following semi-ring 16 and just cam up and down semi-ring constitute under the state of annulus, at the affixed lock 28 in trip 34 places of cam lower end.The outer, upper end of cam 27 makes a card platform 30, and the affixed pillar 26 in the trailing edge mesial point place of cam has the spring hanging hole on the pillar.When cam 27 is in when up and down semi-ring connects into the annulus state, on the linking arm 12 above the position of blocking platform 30 over against the cam upper end, open circular hole, brake cam 27 is installed in the circular hole its stage clip card post 22 that is in locking state, and make the stage clip 31 that is installed in the circular hole will block post 22 under normal conditions to be pushed into and to descend point most, place restrictions on the rotation of cam 27.Be installed to the position that is fit to it for making stage clip 31 and blocking post 22, affixed one section connector 32 that coincide with the circular hole position on the circular hole of linking arm 12.Stage clip 31 upper ends are spacing on circular hole inner chamber top, are compressive state.Card post 22 upper ends are by the affixed draw ring 21 of screw.On the linking arm 12 that is positioned at cam 27 rear outside, open rivet hole, be pressed into a rivet 24 with little cross bar 33 with the tight fit form.The inner of little cross bar 33 is connected a returning pull-spring 25 that cam return is taken off collude with 26 of the pillars of cam rear portion midpoint, so just make the card body of sealing up a door, by the keyhole 18 on the linking arm 12 at two ends it is installed in the draw-in groove spare 1 and 10 of rear and front end of two cover hydraulic pressure lead screw device, can constitutes a complete charged for replacement straight line monolithic insulator instrument.When not using, can take keeping apart; During use, be assembled into complete charged for replacement straight line monolithic insulator instrument, utilize the telescopicing performance of hydraulic pressure screw mandrel 13, allow two card bodies 11 of sealing up a door be enclosed within insulator string to be replaced two ends, and on carry the draw ring 21 of retaining mechanism stage clip card post 22 upper ends, card post 22 is retracted in its circular hole, in second cyclization, simultaneously, rotating cam 27, the trip 34 of lower end is colluded be enclosed within on the lock 28 that is fixed in semi-ring down, at this moment, unclamp the control of 21 pairs of card posts 22 of draw ring, under the effect of stage clip power, card post 22 lower ends hold out against on the card platform 30 of cam 27 upper ends, and the camlock state is fixed.With 13 elongations of two cover hydraulic pressure screw mandrels, the insulator string tension with not needing to change can make insulator string to be replaced or insulator sheet be in relaxed state, is convenient for changing.After changing end, screw mandrel gradually bounces back, make insulator sheet or insulator sheet and the tension of original insulator string finished changing, lift ring 21 on getting final product, to block post 22 and throw off with cam 27, under the effect of returning pull-spring 25, cam 27 rotates the back and throws off with lock 22, the following semi-ring 16 of card body 11 of sealing up a door is opened voluntarily, can take off entire tool.
Concrete behaviour: 1, three operating personnel enter the working site, and the ground electrician spreads out moistureproof cushion, insulation ropes and Work tool classification are put out successively, and assembling are finished.Detect insulating tool with portable insulation tester.2, the guardian carries anti-fall safety rope and steps on tower to correct position on the tower, selects the sight line optimum to guard.3, the electrician carries required pulley, insulation rope and insulation rope sling and steps on tower setting extremely separately in succession on the tower, fastens seat belts, and selects the position of suitable operation to install in entrained pulley insulation rope and insulation rope sling.4,1, No. 2 electrician hangs on required Work tool, 500kV conductors on quad bundled hook is installed as the lead anti-falling protection.5, the ground electrician with the hydraulic pressure screw mandrel before card, back cartoon cross insulation ropes and pass to 1, No. 2 electrician on the tower respectively, 1, No. 2 electrician cooperatively interacts and assembles the card body of sealing up a door.6, No. 2 electricians extract insulator R pin with insulating bar on the tower, and No. 1 the electrician tightens up the handle of pulling hydraulic pressure lead screw device with insulating bar, makes insulator string to be changed lax.7,1, No. 2 electrician cooperatively interacts on the tower, and new insulator string is changed in the insulator string taking-up that utilizes insulator taking tool will need to change then, with the slow let-down of the insulator ground under changing.8, No. 1 electrician stirs hydraulic pressure screw mandrel commutation valve collar and makes insulator string stressed on the tower.9, No. 2 electricians free back the cooperation with No. 1 electrician on the tower of R pin insertion on the tower with forward and backward card body.10, changed after, by insulation ropes instrument is delivered to ground, finish and change operation.
Claims (10)
1. charged for replacement straight line monolithic insulator instrument comprises the hydraulic pressure lead screw device and the card body (11) of sealing up a door; The card body (11) that it is characterized in that sealing up a door is installed in two pairs of draw-in groove spares (1,10) at two hydraulic pressure lead screw device two ends arranged side by side; Constitute a long frame shape.
2. charged for replacement straight line monolithic insulator instrument according to claim 1, the card body (11) that it is characterized in that sealing up a door constitutes annular card body by two semicircular ring (20,16) up and down.
3. charged for replacement straight line monolithic insulator instrument according to claim 1 and 2 is characterized in that at card body two ends the linking arm (12) that is connected with the hydraulic pressure lead screw device being arranged, have near the arm end with hydraulic pressure lead screw device draw-in groove be connected keyhole (18).
4. charged for replacement straight line monolithic insulator instrument according to claim 1, it is characterized in that the left end of following semi-ring (16) of card body (11) and the joint portion of last semi-ring (20) are rotationally connected with rotating shaft (17), and following semi-ring and rotating shaft fix as one, and the right-hand member of semi-ring (16) is connected with the chucking that the joint portion of last semi-ring (20) constitutes by cam lock holding mechanism under the card body.
5. charged for replacement straight line monolithic insulator instrument according to claim 1, it is characterized in that semi-ring (20) is made a cavity (29) that can hold cam lock holding mechanism with the access section of following semi-ring (16) on the card body, rotating manner is installed lock cam (27) in the lock of the cavity internal fixation of Lower Half (28), the cavity of the first half.
6. charged for replacement straight line monolithic insulator instrument according to claim 1 or 5, it is characterized in that being positioned on the linking arm (12) of card body cavity (29) top and have the cylindrical cavity that stage clip card post (22) is installed, linking arm (12) middle part that is positioned at the cavity outside is opened rivet hole, cam return extension spring fixing rivet (24) is installed, and middle part, cam (27) back is connected returning pull-spring (25) with the rivet lower end.
7. according to claim 1 or 4,5 described charged for replacement straight line monolithic insulator instruments, it is characterized in that cam (27) makes semicircular body, there is trip (34) lower end, and there is the Ka Tai (30) that cooperates with stage clip card post (22) middle and upper part.
8. according to claim 1 or 4 described charged for replacement straight line monolithic insulator instruments, the card post stage clip (31) that it is characterized in that the cam top of card body (11) is enclosed within card post (22) first half, be installed in the cylindrical cavity, fixedly connected with card post (22) middle part in stage clip (31) lower end, stage clip (31) upper end becomes compressive state spacing at the cylindrical cavity top, and card post (22) top is equipped with the draw ring (21) of control card post.
9. according to claim 1 or 4 described charged for replacement straight line monolithic insulator instruments, it is characterized in that the last Lower Half of card body (11) also is installed with the lever (19) that there is annulus a upper end in the rotating shaft (17) at the left end place of being rotationally connected.
10. charged for replacement straight line monolithic insulator instrument according to claim 1, it is characterized in that the hydraulic pressure lead screw device is made of two covers, be manufactured with in end cap (9) outer end of hydraulic pump cylinder body and decide draw-in groove spare (10), being equipped with on the hydraulic pressure screw mandrel (13) can be with the flexible moving draw-in groove spare of hydraulic pressure screw mandrel, and the last lower wall of two draw-in grooves has connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202248687U CN201699352U (en) | 2010-06-08 | 2010-06-08 | Tool for electrified replacing linear monolithic insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202248687U CN201699352U (en) | 2010-06-08 | 2010-06-08 | Tool for electrified replacing linear monolithic insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699352U true CN201699352U (en) | 2011-01-05 |
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ID=43400596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202248687U Expired - Fee Related CN201699352U (en) | 2010-06-08 | 2010-06-08 | Tool for electrified replacing linear monolithic insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201699352U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170099A (en) * | 2011-01-30 | 2011-08-31 | 云南电网公司昆明供电局 | Single insulator device for changing power transmission line with voltage of 35-500 kV or more while powering on/off |
| CN105119187A (en) * | 2015-08-14 | 2015-12-02 | 国家电网公司 | Device for replacing insulator |
| CN105470859A (en) * | 2015-12-11 | 2016-04-06 | 国网浙江省电力公司嘉兴供电公司 | Special lifting clamp for high-voltage power transmission line composite insulator |
| CN105576550A (en) * | 2014-10-11 | 2016-05-11 | 国家电网公司 | Method for live-line replacement of high voltage power transmission line monolithic strain insulator |
| CN107171241A (en) * | 2017-03-29 | 2017-09-15 | 国网浙江省电力公司金华供电公司 | One kind changes extra high voltage line strain insulator complexes |
| CN108075385A (en) * | 2016-11-16 | 2018-05-25 | 刘伟华 | The charged health check tool of Portable rural electrician |
| CN108075386A (en) * | 2016-11-16 | 2018-05-25 | 刘伟华 | Substation's hot line job assistor |
| CN109787146A (en) * | 2019-01-30 | 2019-05-21 | 云南电网有限责任公司昆明供电局 | Fixture is replaced for ± 500kV power line tension insulator string monolithic |
-
2010
- 2010-06-08 CN CN2010202248687U patent/CN201699352U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170099A (en) * | 2011-01-30 | 2011-08-31 | 云南电网公司昆明供电局 | Single insulator device for changing power transmission line with voltage of 35-500 kV or more while powering on/off |
| CN105576550A (en) * | 2014-10-11 | 2016-05-11 | 国家电网公司 | Method for live-line replacement of high voltage power transmission line monolithic strain insulator |
| CN105576550B (en) * | 2014-10-11 | 2018-08-14 | 国家电网公司 | A kind of charged for replacement UHV transmission line single chip tension insulator method |
| CN105119187A (en) * | 2015-08-14 | 2015-12-02 | 国家电网公司 | Device for replacing insulator |
| CN105470859A (en) * | 2015-12-11 | 2016-04-06 | 国网浙江省电力公司嘉兴供电公司 | Special lifting clamp for high-voltage power transmission line composite insulator |
| CN108075385A (en) * | 2016-11-16 | 2018-05-25 | 刘伟华 | The charged health check tool of Portable rural electrician |
| CN108075386A (en) * | 2016-11-16 | 2018-05-25 | 刘伟华 | Substation's hot line job assistor |
| CN107171241A (en) * | 2017-03-29 | 2017-09-15 | 国网浙江省电力公司金华供电公司 | One kind changes extra high voltage line strain insulator complexes |
| CN109787146A (en) * | 2019-01-30 | 2019-05-21 | 云南电网有限责任公司昆明供电局 | Fixture is replaced for ± 500kV power line tension insulator string monolithic |
| CN109787146B (en) * | 2019-01-30 | 2023-11-24 | 云南电网有限责任公司昆明供电局 | Single-piece replacement fixture for strain insulator string of +/-500 kV power transmission line |
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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: 20110105 Termination date: 20190608 |