CN204046057U - Closed fixture - Google Patents
Closed fixture Download PDFInfo
- Publication number
- CN204046057U CN204046057U CN201420477891.5U CN201420477891U CN204046057U CN 204046057 U CN204046057 U CN 204046057U CN 201420477891 U CN201420477891 U CN 201420477891U CN 204046057 U CN204046057 U CN 204046057U
- Authority
- CN
- China
- Prior art keywords
- kelly
- jig body
- card
- revolving shaft
- claw hook
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012212 insulator Substances 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 210000000078 claw Anatomy 0.000 claims abstract description 24
- 239000011521 glass Substances 0.000 abstract description 4
- 229910052573 porcelain Inorganic materials 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000005341 toughened glass Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Insulating Bodies (AREA)
Abstract
The utility model discloses a kind of closed fixture, comprise jig body and promote leading screw, also comprise some adjusting rods and some buckles be circumferentially arranged in uniformly for being closely engaged with insulator steel cap on jig body inwall, buckle comprises supporting revolving shaft, kelly and claw hook, claw hook is towards the one end being located at kelly at jig body center, supporting revolving shaft is parallel to the other end being fixed in kelly of claw hook, the body wall of jig body has the adjustment hole crossing with each kelly, supporting revolving shaft can axial-rotation be movably arranged on jig body inwall, adjusting rod is threaded connection in adjustment hole, the medial extremity of this adjusting rod connects with kelly and promotes this kelly and drive claw hook to be closely engaged with insulator steel cap around supporting revolving shaft to jig body central rotation.The utility model structure is simple, easy to operate, jig internal diameter of the present utility model can be allowed effectively to adjust within the specific limits, be applicable to the glass of different model and specification or the replacing upkeep operation of porcelain insulator.
Description
Technical field
The utility model relates to power industry overhead transmission line maintenance, repair apparatus field, particularly relates to a kind of closed fixture.
Background technology
Closed fixture is a kind of metal jig when changing monolithic glass or porcelain insulator in power transmission lines overhauling, during use, only closed fixture need to be stuck in before and after insulator to be replaced on two panels insulator steel cap, tighten up screw mandrel by the load transfer on insulator to be replaced on closed fixture, thus carry out the replacing of insulator.Owing to being subject to insulator model, impact that size is different, before use closed fixture, first to confirming insulator steel cap diameter dimension, and then select corresponding closed fixture mould to operate.But due to the impact of processing technology; insulator steel cap not positive toroidal or diameter does not meet designing requirement; closed fixture is then height approved product; when producing, product size is reserved; in the actual maintenance process of transmission line; often there will be closed fixture and the unmatched situation of insulator steel cap, have impact on the use of closed fixture in replacing insulator work.For solving above-mentioned unmatched problem, people have made following improvement to closed fixture:
One, in closed fixture mould, " core tool " is increased, as shown in Figure 6, the method cardinal principle is in closed fixture mould, increase a set of core tool a be made up of special clock steel, core tool is made up of inner core tool a1 and outer core tool a2, inside and outside core tool contact surface angle at an angle, ensures the gripping force of closed type fixture by inside and outside mode of inlaying.
Though the applicability of this improvement is strong, still needs the insulator of different model to change the core tool matched with it, can mate completely; And security performance is low, gripping force between outer core tool and jig inwall, between inner core tool and outer core tool, between inner core tool and insulator steel cap is to be realize by the clamping force of himself completely, when clamping force is not enough, between insulator steel cap and " core tool " and closed fixture, relative movement may occur even to drop, the stability of insulator steel cap can not get ensureing.
Two, increase a set of die for inner in closed fixture inside, as shown in Figure 7, this die for inner is made up of two pieces of circular dies b, and the internal diameter of two pieces of circular dies just can block insulator steel cap.
The improvement of this structure is comparatively simple, and operation also facilitates, but the inner surface of die for inner must be consistent with the outer wall construction of insulator steel cap, and affect comparatively large by insulator steel cap profile, often a die for inner can only be used for a kind of insulator steel cap.
Utility model content
The purpose of this utility model is the closed fixture more changed jobs of porcelain that provide a kind of inside dimension adjustable, that be applicable to different model and specification or glass insulator.
This closed fixture that the utility model provides, comprise jig body and promote leading screw, this closed fixture also comprises some adjusting rods and some buckles be circumferentially arranged in uniformly for being closely engaged with insulator steel cap on jig body inwall, described buckle comprises supporting revolving shaft, kelly and claw hook, described claw hook is towards the one end being located at kelly at jig body center, described supporting revolving shaft is parallel to the other end being fixed in kelly of described claw hook, the body wall of described jig body has the adjustment hole crossing with each described kelly, described supporting revolving shaft can axial-rotation be movably arranged on jig body inwall, described adjusting rod is threaded connection in adjustment hole, the medial extremity of this adjusting rod connects with kelly and promotes this kelly and drive claw hook to be closely engaged with insulator steel cap around supporting revolving shaft to jig body central rotation.
The utility model also comprises some cover plates, the inwall of described jig body circumferentially has draw-in groove that some and described kelly matches uniformly, described draw-in groove has at least one end to be communicated with jig body end face, an end face of the jig body be communicated with described draw-in groove has the deep gouge that some and described supporting revolving shaft matches, described adjustment hole is connected with each described draw-in groove, described kelly is arranged in draw-in groove, described supporting revolving shaft can axial-rotation be arranged in deep gouge, locked buckle on the jig body end face that described cover plate is movably arranged on deep gouge outer end.
For making structure more both artistic and practicalization of the present utility model, the end face of the jig body of described deep gouge side is provided with a heavy stand, and described cover plate is arranged on the heavy stand of deep gouge outer end by pin.
Because of in concrete use procedure, the Impact direction being positioned at front end jig points to insulator iron pin, and the Impact direction being positioned at rear end jig is insulator iron pin dorsad, therefore for making the utility model, in use bearing position is more reasonable, described jig body comprises front card and rear card, the two ends of described front card are connected with the two ends of rear card respectively by lifting leading screw, each described draw-in groove and deep gouge are circumferentially evenly arranged on the inwall of this front card and rear card, draw-in groove before described on card is at least communicated with its lower surface, draw-in groove on described rear card is communicated with at least its upper surface, deep gouge before described on card is on its lower surface, deep gouge on described rear card is thereon on end face.Be arranged on described before kelly on card and adopt the arc shaped of indent between claw hook, the linearity adopting indent between kelly on card in the rear and claw hook is installed.
The utility model is on the basis of original closed fixture, increase the effect that some buckles along its inwall circle distribution replace original punching block, one end of buckle is provided with claw hook, the other end is rotatably mounted on the inwall of jig body by supporting revolving shaft, by passing the crossing with buckle of the inwall of jig body at a threaded adjusting rod, the utility model is stuck on insulator steel cap, the each adjusting rod of manual rotation, promote the central rotation of claw hook around the axle center of supporting revolving shaft to jig body of buckle, thus realize the object of regulation and control jig internal diameter size, make it closely to be engaged with insulator steel cap.The utility model structure is simple, easy to operate, in use, operating personnel does not need the size adjusting insulator more substantially, do not need yet consider be with jig size whether to match with insulator, more without the need to preparing many cover closed fixture moulds, jig internal diameter of the present utility model can be allowed effectively to adjust within the specific limits, be applicable to the glass of the different models such as 70kN, 100kN, 120kN and 160kN and specification or the replacing upkeep operation of porcelain insulator, for carrying out of upkeep operation provides a great convenience.
Accompanying drawing explanation
Fig. 1 is the utility model broken section structural representation.
Fig. 2 is Fig. 1 plan structure schematic diagram.
Fig. 3 is Fig. 1 A-A place broken section structural representation.
Fig. 4 is Fig. 2 B-B place sectional structure schematic diagram.
Fig. 5 is Fig. 3 C-C place sectional structure schematic diagram.
Fig. 6 is the structural representation of prior art one.
Fig. 7 is the structural representation of prior art two.
Embodiment
As can be seen from Fig. 1 to Fig. 5, this closed fixture of the utility model, comprise jig body 1, some buckles 2, some cover plates 3, some adjusting rods 4 and lifting leading screw 5, wherein buckle 2 comprises supporting revolving shaft 21, kelly 22 and claw hook 23, kelly 22 is circumferentially arranged on jig body 1 inwall uniformly, claw hook 23 is towards the one end being located at kelly 22 at jig body 1 center, supporting revolving shaft 21 is parallel to the other end being fixed in kelly 22 of claw hook 23, the inwall of jig body 1 circumferentially has some draw-in grooves 11 matched with kelly 22 uniformly, draw-in groove 11 has at least one end to be communicated with jig body 1 end face, the end face of the jig body 1 be communicated with draw-in groove 11 has some deep gouges 12 matched with supporting revolving shaft 21, the body wall of jig body 1 has the adjustment hole 13 be connected with each draw-in groove 11, the end face of the jig body 1 of deep gouge 12 side is provided with a heavy stand 14, kelly 22 is arranged in draw-in groove 11, supporting revolving shaft 21 can axial-rotation be arranged in deep gouge 12, cover plate 3 is arranged on the upper locked buckle 2 of heavy stand 14 of the jig body 1 of deep gouge 12 outer end by pin, adjusting rod 4 is threaded connection and is arranged in adjustment hole 13, the medial extremity of this adjusting rod 4 connects with the outside of kelly 22.
It can also be seen that from Fig. 1 to Fig. 5, jig body 1 of the present utility model comprises front card 15 and rear card 16, the two ends of front card 15 are connected with the two ends of rear card 16 respectively by lifting leading screw 5, each draw-in groove 11 and deep gouge 12 are circumferentially evenly arranged on the inwall of this front card 15 and rear card 16, draw-in groove 11 on front card 15 is at least communicated with its lower surface, draw-in groove 11 on rear card 16 is at least communicated with its upper surface, and the deep gouge 12 on front card 15 is on its lower surface, and the deep gouge 12 on rear card 16 is thereon on end face.
As can be seen from Fig. 1, Fig. 4 and Fig. 5, be arranged on the arc shaped adopting indent between kelly 22 before the utility model on card 15 and claw hook 23, after being arranged on the utility model, block the linearity adopting indent between kelly 22 on 16 and claw hook 23.
In the utility model, the buckle 2 on front card 15 and rear card 16 respectively has 5.
In the utility model, front card 15 and rear card 16 adopt aluminum alloy materials to make, lightweight; The buckle 2 very little with insulator steel cap contact-making surface adopts manganese steel to make, and intensity is high, can not deformation damage when bearing the extruding of high load, reach Strength Safety and operation lightly, unification easily.
As follows in concrete use procedure of the present utility model:
1, live line working first detects zero resistance insulator before using, and observes the relevant live line working regulation of " electric power safety working regulation ", especially should notice that zero resistance insulator sheet tree and safe distance must not exceed standard.
2, front card 15 and rear card 16 are fixed on corresponding insulator steel cap, for preventing unbalance stress from causing insulator toughened glass to burst apart, rubber ring need be padded between front card 15 and the toughened glass contact-making surface of insulator steel cap, between rear card 16 and the toughened glass contact-making surface of insulator steel cap.
3, before rotating, card 15 or the rear each adjusting rod 4 blocked on 16, make its medial extremity connect with the outside of kelly 22;
4, each adjusting rod 4 before synchronous rotary on card 15 or rear card 16, promotes kelly 22 and rotates around the axle center of supporting revolving shaft 21, now, each claw hook 23 is synchronous block forward 15 or the central rotation of rear card 16 be progressively closely engaged with insulator steel cap;
5, the screw rod blocked before making adjusting rod 4 be exposed at outside 15 or rear card 16 is consistent, fastening nut, by front card 15 or the rear closed screw tightening blocked on 16.
6, check front card 15 and rear card 16 stressed whether well, tighten up the lifting leading screw 5 of both sides simultaneously, make uniform force.
To spring pin be installed when 7, recovering, really appoint no problem rear dismountable clamp.
The utility model can be used for the instrument changing any a slice monolithic insulator of insulator string (except first and last end), has 3 insulators to be shorted (short 3 cards 4) within the scope of jig, replaceable wherein arbitrary.
Claims (5)
1. a closed fixture, comprise jig body (1) and promote leading screw (5), it is characterized in that: this closed fixture also comprises some adjusting rods (4) and some buckles (2) be circumferentially arranged in uniformly for being closely engaged with insulator steel cap on jig body (1) inwall, described buckle (2) comprises supporting revolving shaft (21), kelly (22) and claw hook (23), described claw hook (23) is towards the one end being located at kelly (22) at jig body (1) center, described supporting revolving shaft (21) is parallel to the other end being fixed in kelly (22) of described claw hook (23), the body wall of described jig body (1) has the adjustment hole (13) crossing with each described kelly (22), described supporting revolving shaft (21) can axial-rotation be movably arranged on jig body (1) inwall, described adjusting rod (4) is threaded connection in adjustment hole (13), the medial extremity of this adjusting rod (4) connects with kelly (22) and promotes this kelly (22) and drive claw hook (23) to be closely engaged with insulator steel cap around supporting revolving shaft (21) to jig body (1) central rotation.
2. closed fixture according to claim 1, it is characterized in that: this closed fixture also comprises some cover plates (3), the inwall of described jig body (1) circumferentially has draw-in groove (11) that some and described kelly (22) matches uniformly, described draw-in groove (11) has at least one end to be communicated with jig body (1) end face, an end face of the jig body (1) be communicated with described draw-in groove (11) has the deep gouge (12) that some and described supporting revolving shaft (21) matches, described adjustment hole (13) is connected with each described draw-in groove (11), described kelly (22) is arranged in draw-in groove (11), described supporting revolving shaft (21) can axial-rotation be arranged in deep gouge (12), locked buckle (2) on jig body (1) end face that described cover plate (3) is movably arranged on deep gouge (12) outer end.
3. closed fixture according to claim 2, is characterized in that: on the end face of the jig body (1) of described deep gouge (12) side, be provided with a heavy stand (14), described cover plate (3) is arranged on the heavy stand (14) of deep gouge (12) outer end by pin.
4. closed fixture according to claim 2, it is characterized in that: described jig body (1) comprises front card (15) and rear card (16), the two ends of described front card (15) are connected with the two ends of rear card (16) respectively by lifting leading screw (5), each described draw-in groove (11) and deep gouge (12) are circumferentially evenly arranged on the inwall of this front card (15) and rear card (16), draw-in groove (11) before described on card (15) is at least communicated with its lower surface, draw-in groove (11) on described rear card (16) is at least communicated with its upper surface, deep gouge (12) before described on card (15) is on its lower surface, deep gouge (12) on described rear card (16) is thereon on end face.
5. closed fixture according to claim 4, it is characterized in that: be arranged on described before the arc shaped adopting indent between kelly (22) and claw hook (23) on card (15), the linearity adopting indent between kelly (22) on card (16) in the rear and claw hook (23) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477891.5U CN204046057U (en) | 2014-08-25 | 2014-08-25 | Closed fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477891.5U CN204046057U (en) | 2014-08-25 | 2014-08-25 | Closed fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204046057U true CN204046057U (en) | 2014-12-24 |
Family
ID=52246685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420477891.5U Active CN204046057U (en) | 2014-08-25 | 2014-08-25 | Closed fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204046057U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340826A (en) * | 2016-10-21 | 2017-01-18 | 国网浙江省电力公司检修分公司 | Enclosed clamp |
| CN106786172A (en) * | 2017-03-28 | 2017-05-31 | 国网河南省电力公司检修公司 | A kind of replacing device for insulator |
| CN107069542A (en) * | 2017-03-28 | 2017-08-18 | 国网河南省电力公司检修公司 | A kind of insulator steel cap fixture |
| CN107565450A (en) * | 2017-09-06 | 2018-01-09 | 三峡大学 | A kind of chuck synchronously adjustable replacing device for insulator and method |
| CN108565777A (en) * | 2018-06-05 | 2018-09-21 | 广西电网有限责任公司柳州供电局 | 35 kilovolts to 500 kilovolts insulator General clampings |
| CN110277745A (en) * | 2019-05-28 | 2019-09-24 | 金华送变电工程有限公司 | A kind of general replacement tool of self-destruction glass insulator |
-
2014
- 2014-08-25 CN CN201420477891.5U patent/CN204046057U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340826A (en) * | 2016-10-21 | 2017-01-18 | 国网浙江省电力公司检修分公司 | Enclosed clamp |
| CN106340826B (en) * | 2016-10-21 | 2018-07-03 | 国网浙江省电力公司检修分公司 | A kind of closed type fixture |
| CN106786172A (en) * | 2017-03-28 | 2017-05-31 | 国网河南省电力公司检修公司 | A kind of replacing device for insulator |
| CN107069542A (en) * | 2017-03-28 | 2017-08-18 | 国网河南省电力公司检修公司 | A kind of insulator steel cap fixture |
| CN107069542B (en) * | 2017-03-28 | 2018-08-24 | 国网河南省电力公司检修公司 | A kind of insulator steel cap fixture |
| CN107565450A (en) * | 2017-09-06 | 2018-01-09 | 三峡大学 | A kind of chuck synchronously adjustable replacing device for insulator and method |
| CN108565777A (en) * | 2018-06-05 | 2018-09-21 | 广西电网有限责任公司柳州供电局 | 35 kilovolts to 500 kilovolts insulator General clampings |
| CN110277745A (en) * | 2019-05-28 | 2019-09-24 | 金华送变电工程有限公司 | A kind of general replacement tool of self-destruction glass insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |