CN109755909A - Bus telescoping section and GIS bus - Google Patents
Bus telescoping section and GIS bus Download PDFInfo
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- CN109755909A CN109755909A CN201811565439.3A CN201811565439A CN109755909A CN 109755909 A CN109755909 A CN 109755909A CN 201811565439 A CN201811565439 A CN 201811565439A CN 109755909 A CN109755909 A CN 109755909A
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Abstract
The present invention relates to project of transmitting and converting electricity technical fields, and in particular to a kind of bus telescoping section and GIS bus.GIS bus includes bus cylinder and bus telescoping section, the bus telescoping section includes the forward flange and rear flange along bus axis arrangement, bellows is connected between forward flange and rear flange, bus telescoping section further includes the elastic parts being connected between forward flange and rear flange, the elastic parts includes the sleeve being fixedly connected with forward flange and the transmission rod that is fixedly connected with rear flange, the transmission rod has front-end and back-end, spring is provided between the front end of the transmission rod and the rear end of sleeve, the locating part that when moving in transmission rod into sleeve and the rear end block of sleeve cooperates is provided on the rear end of transmission rod, being additionally provided between the locating part and the rear end of sleeve makes transmission rod extract setting length out to outside sleeve so that spring, which is pressurized, generates the card-bit part of default power output.
Description
Technical field
The present invention relates to project of transmitting and converting electricity technical fields, and in particular to a kind of bus telescoping section and GIS bus.
Background technique
GIS(Cubicle Gas-Insulated Switchgear) it is one of important equipment during substation transmits electric power,
Security reliability is that substation stablizes the primary condition to transmit electric power.In GIS engineering, GIS bus can be made due to expanding with heat and contract with cold
At GIS bus be bent expansion and GIS bus built-in electrical insulation gas leakage, and then cause substation can not reliability service, finally may be used
Safety accident can be caused, in order to avoid such case generation, is typically employed between adjacent bus cylinder and connects in the prior art
Bus telescoping section can also be installed to compensate the deflection that GIS bus is generated due to expanding with heat and contract with cold on bus telescoping section
Balancing device, balancing device are used to balance to generate bus cylinder to telescopic joint because being filled with insulating gas in bus bar canister body
Pulling force.
Authorization Notice No. is CN203718253U, and authorized announcement date is that the patent document of 2014.07.16 discloses a kind of put down
Weighing apparatus type stainless steel telescopic joint, which includes corrugated stainless steel tubing, is set respectively at the both ends of corrugated stainless steel tubing
It is equipped with front shoe and rear fixed plate；The stainless steel telescopic joint further includes balancing device, balancing device be fixed on two fixed plates it
Between, balancing device includes compression cylinder, disk spring and stretch rod, wherein compression cylinder front end is fixed with front shoe, stretch rod
Front end is protruded into compression cylinder from the rear end of compression cylinder, and the rear end of stretch rod is fixed on rear fixed plate, and the front end of stretch rod is protruded into
After in compression cylinder, it is elastically engaged by the rear end of disk spring and compression cylinder.The balanced type stainless steel telescopic joint is mounted on GIS
After in bus, when being filled with insulating gas into GIS bus, the bus bar canister of GIS bus, which is known from experience, pulls telescopic joint to two end motions, by
It is fixed respectively by front shoe and rear fixed plate in compression cylinder and stretch rod, the disk spring in balancing device will receive by stretching
Bar and compression cylinder distinguish bring pressure and compressive deformation, disk spring correspondence are supplied to stretch rod and compression cylinder elastic force to resist
Back movement between stretch rod and compression cylinder realizes the balance between spring force and gas pressure, make to be located at fixed plate it
Between bellows GIS bus inflate after the completion of in the raw.
Wherein, stretch rod is provided with pre-load nut on the part of compression cylinder, and telescopic joint can band when moving to two sides
Dynamic stretch rod movement, so that compression elastic element resists suffered pulling force, pre-load nut can cooperate limitation to stretch with compression cylinder
Bar is moved into compression cylinder, i.e., the telescopic joint plays the role of balanced pulling force mainly in bellows under tension.And this is flexible
Section must by flange spheric nut and spherical washer remove, make the unrestricted whole function for being just able to achieve telescopic joint of stretch rod
Energy.But bellows can not only be protected when bellows is squeezed for the telescopic joint itself.
Summary of the invention
The object of the present invention is to provide a kind of bus telescoping sections, can only put down for solving telescopic joint itself in the prior art
The pressure that is subject to of weighing apparatus bellows and the problem of pulling force suffered by bellows can not be balanced；The present invention also provides a kind of GIS buses, both
Bellows pulling force and pressure can be balanced, bellows safety with higher is made.
To achieve the above object, median generatrix telescopic joint of the present invention adopts the following technical scheme that
Bus telescoping section is connected with wave including the forward flange and rear flange arranged along bus axis between forward flange and rear flange
Line pipe, bus telescoping section further include the elastic parts being connected between forward flange and rear flange, the elastic parts include with it is preceding
The sleeve that flange is fixedly connected and the transmission rod being fixedly connected with rear flange, the transmission rod have front-end and back-end, the biography
It is provided with spring between the front end of power bar and the rear end of sleeve, is provided on the rear end of transmission rod and is moved in transmission rod into sleeve
When and sleeve rear end block cooperation locating part, being additionally provided between the locating part and the rear end of sleeve makes transmission rod to set
The outer extraction setting length of cylinder generates the card-bit part of default power output so that spring is pressurized.
The beneficial effect is that: card-bit part can make transmission rod that spring be driven to generate default power output, preset power output energy
Enough blind flange force is balanced so that bellows is not affected by the pulling of blind flange force in assembly, so that bellows is in free state, i.e., is not sent out
The raw corresponding original state of bus cylinder expanded with heat and contract with cold；Block cooperation between locating part and the rear end of sleeve, can guarantee
Bellows is no longer pressurized when being under pressure by the effect of locating part and sleeve, and bellows mistake under external force is avoided
Degree compresses and damages its structure, and transmission rod can move forwards or backwards corresponding generate under the action of the spring and resist other effects
The elastic force of power can protect GIS bus when GIS device is in heat expansion, shrinkage.
Further, the section of the card-bit part is U-shaped, has the bayonet being adapted to transmission rod, card-bit part is in transmission rod
Thickness on extending direction is identical as the maximum allowable decrement of bellows.
The beneficial effect is that: card-bit part is provided with U-shaped and there is bayonet, is assembled convenient for operator, and
During assembled in situ, using the effect of blind flange force, operator can easily remove card-bit part from transmission rod, subtract
The additional workload of operator is lacked.
Further, the spring is helical spring, and helical spring includes being sleeved on one in such a way that axis of rotation is overlapped
Rising, big springs and little spring that radial dimension is different, the big spring and little spring it is oppositely oriented.
The beneficial effect is that: helical spring, the deformation of helical spring are used in the elastic parts in bus telescoping section
Ability is strong, and deformation range is big, and after meeting elastic parts balance bus cylinder to the pulling force of telescopic joint, there are also more than enough deformations
Amount is to adapt to deformation when GIS bus expanded by heating；And helical spring is cheap, can reduce the cost of telescopic joint；
It sets helical spring to the big spring and little spring being set in together in such a way that axis of rotation is overlapped, spiral bullet can be enhanced
The deformability of spring without improving its deformability by the diameter for increasing helical spring, and then can guarantee to stretch
The radial dimension of section is unlikely to excessive.
Further, the transmission rod includes screw rod and the attachment base that is screwed on screw rod, the trailing flank of the attachment base
Cooperation is supported with big spring and little spring.
The beneficial effect is that: attachment base is screwed on screw rod, the opposite position between attachment base and screw rod is conveniently adjusted
Relationship is set, spring has a certain amount of error in process, and in order to guarantee the accuracy of default power output, operator can
The elastic force of spring is adjusted with the position by adjusting attachment base.
Further, the rear end of the transmission rod is equipped with thread segment, and the locating part is to be screwed on transmission rod thread segment
Stop nut.
The beneficial effect is that: stop nut is set by locating part, it can be preferably using using screw rod as transmission rod
Condition, structure is simple, is easy to implement.
To achieve the above object, GIS bus adopts the following technical scheme that in the present invention
GIS bus, including bus cylinder and bus telescoping section, the bus telescoping section include the forward flange along bus axis arrangement
And rear flange, bellows is connected between forward flange and rear flange, bus telescoping section further includes being connected to forward flange and rear flange
Between elastic parts, the elastic parts includes the sleeve being fixedly connected with forward flange and the power transmission that is fixedly connected with rear flange
Bar, the transmission rod have front-end and back-end, spring, transmission rod are provided between the front end of the transmission rod and the rear end of sleeve
Rear end on be provided with when being moved in transmission rod into sleeve and the locating part of the rear end block of sleeve cooperation, the locating part with
Being additionally provided between the rear end of sleeve makes transmission rod extract setting length out to outside sleeve so that spring, which is pressurized, generates default power output
Card-bit part.
The beneficial effect is that: card-bit part can make transmission rod that spring be driven to generate default power output, preset power output energy
Enough blind flange force is balanced so that bellows is not affected by the pulling of blind flange force in assembly, so that bellows is in free state, i.e., is not sent out
The raw corresponding original state of bus cylinder expanded with heat and contract with cold；Block cooperation between locating part and the rear end of sleeve, can guarantee
Bellows is no longer pressurized when being under pressure by the effect of locating part and sleeve, and bellows mistake under external force is avoided
Degree compresses and damages its structure, and transmission rod can move forwards or backwards corresponding generate under the action of the spring and resist other effects
The elastic force of power can protect GIS bus when GIS device is in heat expansion, shrinkage, and GIS bus passes through bus telescoping section
It itself can be realized as automatic adjusument when corresponding heat expansion, shrinkage, ripple made to be in control good protection.
Further, the section of the card-bit part is U-shaped, has the bayonet being adapted to transmission rod, card-bit part is in transmission rod
Thickness on extending direction is identical as the maximum allowable decrement of bellows.
The beneficial effect is that: card-bit part is provided with U-shaped and there is bayonet, is assembled convenient for operator, and
During assembled in situ, using the effect of blind flange force, operator can easily remove card-bit part from transmission rod, subtract
The additional workload of operator is lacked.
Further, the spring is helical spring, and helical spring includes being sleeved on one in such a way that axis of rotation is overlapped
Rising, big springs and little spring that radial dimension is different, the big spring and little spring it is oppositely oriented.
The beneficial effect is that: helical spring, the deformation of helical spring are used in the elastic parts in bus telescoping section
Ability is strong, and deformation range is big, and after meeting elastic parts balance bus cylinder to the pulling force of telescopic joint, there are also more than enough deformations
Amount is to adapt to deformation when GIS bus expanded by heating；And helical spring is cheap, can reduce the cost of telescopic joint；
It sets helical spring to the big spring and little spring being set in together in such a way that axis of rotation is overlapped, spiral bullet can be enhanced
The deformability of spring without improving its deformability by the diameter for increasing helical spring, and then can guarantee to stretch
The radial dimension of section is unlikely to excessive.
Further, the transmission rod includes screw rod and the attachment base that is screwed on screw rod, the trailing flank of the attachment base
Cooperation is supported with big spring and little spring.
The beneficial effect is that: attachment base is screwed on screw rod, the opposite position between attachment base and screw rod is conveniently adjusted
Relationship is set, spring has a certain amount of error in process, and in order to guarantee the accuracy of default power output, operator can
The elastic force of spring is adjusted with the position by adjusting attachment base.
Further, the rear end of the transmission rod is equipped with thread segment, and the locating part is to be screwed on transmission rod thread segment
Stop nut.
The beneficial effect is that: stop nut is set by locating part, it can be preferably using using screw rod as transmission rod
Condition, structure is simple, is easy to implement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of GIS bus bar implementation 1 in the present invention；
Fig. 2 is the side view of 1 median generatrix telescopic joint of GIS bus bar implementation in the present invention；
Fig. 3 is the structural schematic diagram of 1 median generatrix telescopic joint elastic parts of GIS bus bar implementation in the present invention；
Fig. 4 is the partial enlarged view of Fig. 3；
Fig. 5 is the structural schematic diagram of card-bit part in GIS bus bar implementation 1 in the present invention；
Fig. 6 is the structural schematic diagram of transmission rod in GIS bus bar implementation 2 in the present invention；
Fig. 7 is the D direction view of Fig. 6.
In figure: 1- bus cylinder, 2- telescopic joint, 21- elastic parts, 22- bellows, 23- forward flange, 24- rear flange,
211- sleeve, 212- screw rod, locking section of 2121-；213- attachment base, 214- big spring, 215- little spring, 216- drive end bearing bracket,
217- rear end cap, 218- snap ring, 2181- bayonet；219- stop nut, 210- fixture nut, 2131- positioning convex platform, 2132- are heavy
Slot, 2161- blind hole.
Specific embodiment
The specific embodiment of GIS bus and bus telescoping section in the present invention is illustrated now in conjunction with attached drawing.
The embodiment 1:GIS bus for GIS bus in the present invention includes bus cylinder 1 and is connected to adjacent as shown in Figure 1
Bus telescoping section between bus cylinder 1, i.e., the telescopic joint 2 in figure.Telescopic joint 2 in the present embodiment includes bellows 22 and position
In the forward flange 23 and rear flange 24 of 22 front and rear ends of bellows, forward flange 23 and rear flange 24 with bus cylinder 1 for connecting
Fixed, bellows 22 is used to compensate the deformation that bus cylinder 1 is generated because expanding with heat and contract with cold and guarantees between adjacent bus cylinder 1
Leakproofness；In the outside of bellows 22, elastic parts 21 is also equipped between forward flange 23 and rear flange 24, elastic parts 21 is used
The pulling force that bus bar canister body 1 generates telescopic joint 2 after being filled with insulating gas in balance bus cylinder 1.
In the present embodiment, as shown in Fig. 2, in order to filled in balance bus cylinder 1 plus insulating gas after to telescopic joint 2 generate
Pulling force, 24 groups of elastic parts, 21,24 groups of elastic parts 21 are installed altogether on the outside of bellows 22 and are distributed in ripple
22 outside of pipe, the quantity of elastic parts 21 can be increased and decreased according to actual needs.
As shown in figure 3, elastic parts 21 includes sleeve 211, the front and back ends of sleeve 211 are separately installed with 216 He of drive end bearing bracket
Rear end cap 217 offers a blind hole 2161 on drive end bearing bracket 216, offers internal screw thread in blind hole 2161, on forward flange 23 with
The corresponding position of blind hole 2161 offers a through-hole, and by bolt that drive end bearing bracket 216 and forward flange 23 is fixed.
A through hole is offered on rear end cap 217, screw rod 212 passes through through hole and extend into sleeve 211, screw rod
212 ends protruded into sleeve 211 are equipped with an attachment base 213, offer on attachment base 213 and lead to for what screw rod 212 passed through
Hole, screw rod 212 and attachment base 213 constitute transmission rod together, and the end that screw rod 212 protrudes into sleeve 211 is provided with external screw thread simultaneously
Attachment base 213 is prevented to be detached from from screw rod 212, by fixture nut 210 in order to reduce the sleeve of the occupancy of fixture nut 210
Space in 211 offers deep gouge 2132 on attachment base 213, and 210 standing back of fixture nut is in deep gouge 2132.
One end that screw rod 212 does not extend into sleeve 211 passes through rear flange 24 and is fixed on rear flange 24 by nut, right
The through hole passed through for screw rod 212 is offered on the rear flange 24 answered.
In sleeve 211, it is provided between the outside of screw rod 212, attachment base 213 and rear end cap 217 with axis of rotation weight
Big springs 214 that the mode of conjunction is set in together, that radial dimension is different and little spring 215, big spring 214 and little spring 215
It is helical spring, big spring 214 and little spring 215 are sleeved on screw rod 212, the both ends of big spring 214 and little spring 215
Cooperate respectively with attachment base 213 and the press of rear end cap 217, in order to guarantee that big spring 214 and little spring 215 when compressed will not
There is mutual bullet circle to protrude between the bullet circle of other side, the oppositely oriented setting of big spring 214 and little spring 215.Certainly, at it
In his embodiment, the rotation direction of big spring and little spring identical also be can be used.
In order to facilitate fixed little spring 215 and prevent little spring 215 from generating beat in compression process, in attachment base 213
On be provided with positioning convex platform 2131, little spring 215 is sleeved on positioning convex platform 2131.
As shown in figure 4, being also equipped with the stop nut 219 to form locating part on screw rod 212, stop nut 219 is in spiral shell
Bar 212 is towards the movement that can limit screw rod 212 when moving in sleeve 211, when the two sides of telescopic joint 2 are under pressure, two flanges
Can correspond to and screw rod 212 and sleeve 211 is driven to move toward one another, formed locating part stop nut 219 be that rear end cap 217 contacts after
It realizes block, screw rod 212, flange and bellows 22 will not be made to continue to move to.Bellows 22 passes through stop nut 219 and rear end cap
217 blocks cooperate and are protected, and will not be compressed by external force.So the safety in order to guarantee bellows 22, stop nut
The distance between 219 and rear end cap 217 are not more than the maximum allowable decrement of bellows 22.
In order to make bellows 22 that there is good stress when bus telescoping section is docked with bus cylinder, in locating part
And card-bit part is provided between stop nut 219 and the rear end face of sleeve, card-bit part can pass through the rear end face of itself and sleeve
Block cooperates, or cooperation covers the extraction of screw rod 212 between the rear end face for passing through the pushing tow of stop nut 219, extruding and sleeve
211 a part of cylinder can make spring be in pressured state by the screw rod 212 that card-bit part stretches out sleeve, and spring generates default
The blind plate dynamic balance that power output can be subject to bus telescoping section when filling insulating gas assembles in bus telescoping section and completes and fill
After gas, power output and blind plate dynamic balance are preset, bellows is in the raw.
As shown in figure 5, card-bit part is the snap ring 218 that section is U-shaped, snap ring 218 have can avoid screw rod 212 so that from
Body snaps into the bayonet 2181 on screw rod 212, and when telescopic joint 2 is assembled, the thickness of snap ring 218 and the maximum of bellows 22 permit
Perhaps decrement is identical, and snap ring 218 is fastened on rear end cap 217 and limit by the elastic force of spring and the pushing tow of stop nut 219
It is blind after pouring insulating gas after telescopic joint 2 is assemblied between two bus cylinders 1 and into GIS bus between nut 219
Plate power will drive screw rod 212 far from sleeve 211 or with movement tendency of the screw rod 212 far from sleeve 211 driven, at this time operator
Member can remove snap ring 218 by its bayonet from screw rod 212, spring because the default power output that generates of snap ring 218 with it is blind
Plate dynamic balance, bellows 22 will not tensions.
Elastic parts in a pre-installation, needs to compress big spring 214 and little spring 215 and makes screw rod 212 relative to sleeve 211
It moves to the back-end, when moving in place, a snap ring 218,218 edge of snap ring is clamped between stop nut 219 and rear end cap 217
The width of 212 length direction of screw rod is a designed fixed value, the fixed value guarantee big spring 214 and little spring 215 this
When there is a fixed elastic force, and the sum of the fixation elastic force of the big spring 214 and little spring 215 in 24 elastic parts 21
With filled in bus cylinder 1 plus insulating gas after generate it is identical to the pulling force of bus telescoping section 2；Big spring 214 and little spring
After 215 compressions in place, the gap between attachment base 213 and drive end bearing bracket 216 should ensure that enough bellows 22 by compressive deformation
When screw rod 212 move forward without by block.
In use, being filled with insulating gas into GIS bus first, after the completion of insulating gas fills and adds, elastic parts is removed
Snap ring 218 in 21, the sum of elastic force of big spring 214 and little spring 215 is equal to bus in 24 groups of elastic parts 21 at this time
Cylinder 1 is to the pulling force of bus telescoping section 2, so screw rod 212 will not be mobile relative to sleeve 211, at this time bellows be in not by
Power state, and original state corresponding with the bus cylinder not expanded with heat and contract with cold；When GIS bus is shunk, ripple
Pipe 22 is stretched, and screw rod 212 is moved backward relative to sleeve 211, and screw rod 212 is big relative to the moving limit of sleeve 211
Occur when 215 doubling-up of spring 214 or little spring, the stretching of bellows 22 at this time is not up to its safe limit of stretch, so will not
Damage bellows 22；When GIS bus expands, bellows 22 correspondence is compressed, screw rod 212 relative to sleeve 211 forward
Mobile, when the 217 mutual block of rear end cap of stop nut 219 and sleeve 211, the compression of bellows 22 is not up to it and presses safely
The contracting limit, so bellows 22 will not be damaged.
As shown in FIG. 6 and 7, for the present invention in GIS bus embodiment 2: with above-described embodiment the difference is that
The structure of transmission rod, the i.e. fit form of screw rod 212 and attachment base 213, there are no more deep gouges for attachment base 213 in this example, are
It prevents fixture nut 210 from loosening from screw rod 212, in the end of the stretching fixture nut 210 of screw rod 212, is provided with locking
Section 2121 carries out physical damage to the screw thread of screw rod 212, the side of fixture nut 210 is made to form what plane was connected with cambered surface
Structure, the screw thread on locking section 2121 are destroyed deformation, can not be with female thread at threaded connection relation, 210 nothing of fixture nut
Method is adapted to screw rod 212, realizes the locking processing to fixture nut 210.
In other embodiments, card-bit part may be replaced by other forms: for example set card-bit part to and screw rod spiral shell
The primary nut connect, and positioned at card-bit part far from the holding tank being provided on the locating part of spring one end for accommodating primary nut, it is small
Nut can be retracted into the holding tank of locating part, will not be cooperated the block of locating part and sleeve and be generated interference, primary nut passes through
The block of itself and sleeve cooperates to make spring generate default power output and be balanced with blind flange force.
In other embodiments, card-bit part may be replaced by other forms: for example, by using hardness small body or nut,
Stablize with transmission rod, reliably cooperate, when needing to remove card-bit part from transmission rod, biggish external force is used
Body or nut are destroyed, is detached from it from transmission rod.
In other embodiments, spring can also use disc spring.
In other embodiments, the correspondence arrangement form of helical spring can be adjusted, such as a spiral is only arranged
Spring, or when two helical springs are arranged, set identical for its rotation direction.
In other embodiments, locating part may be replaced by other forms: for example with the integrally formed protrusion of screw rod, grasp
The position of adjustment protrusion and sleeve rear end face can be realized by adjusting the position of attachment base and screw rod by making personnel.
Above-described specific embodiment, to goal of the invention of the invention, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit this foregoing is merely a specific embodiment of the invention
The protection scope of invention, all any modification, equivalent substitution, improvement and etc. within the spirit and principles in the present invention, done,
It should be included within protection scope of the present invention.
Claims (10)
1. bus telescoping section is connected between forward flange and rear flange including the forward flange and rear flange arranged along bus axis
Bellows, it is characterised in that: bus telescoping section further includes the elastic parts being connected between forward flange and rear flange, the elasticity
Component includes the sleeve being fixedly connected with forward flange and the transmission rod that is fixedly connected with rear flange, the transmission rod have front end and
Rear end is provided with spring, is provided on the rear end of transmission rod in transmission rod between the front end of the transmission rod and the rear end of sleeve
Into sleeve move when and sleeve rear end block cooperation locating part, be additionally provided between the locating part and the rear end of sleeve
Transmission rod is set to extract setting length out to outside sleeve so that spring, which is pressurized, generates the card-bit part of default power output.
2. bus telescoping section according to claim 1, it is characterised in that: the section of the card-bit part is U-shaped, is had and biography
The bayonet of power bar adaptation, thickness of the card-bit part on transmission rod extending direction are identical as the maximum allowable decrement of bellows.
3. bus telescoping section according to claim 1 or 2, it is characterised in that: the spring is helical spring, helical spring
Including being set in together in such a way that axis of rotation is overlapped, radial dimension is different big spring and little spring, the big spring
It is oppositely oriented with little spring.
4. bus telescoping section according to claim 3, it is characterised in that: the transmission rod includes screw rod and is screwed onto screw rod
On attachment base, cooperation is supported in the trailing flank of the attachment base and big spring and little spring.
5. bus telescoping section according to claim 1 or 2, it is characterised in that: the rear end of the transmission rod is equipped with thread segment,
The locating part is the stop nut being screwed on transmission rod thread segment.
6.GIS bus, including bus cylinder and bus telescoping section, the bus telescoping section include the preceding method along bus axis arrangement
Blue and rear flange, is connected with bellows, it is characterised in that: bus telescoping section further includes before being connected between forward flange and rear flange
Elastic parts between flange and rear flange, the elastic parts include the sleeve being fixedly connected with forward flange and consolidate with rear flange
Surely the transmission rod connected, the transmission rod have front-end and back-end, are arranged between the front end of the transmission rod and the rear end of sleeve
There is spring, the limit that when moving in transmission rod into sleeve and the rear end block of sleeve cooperates is provided on the rear end of transmission rod
Part, being additionally provided between the locating part and the rear end of sleeve makes transmission rod extract setting length out to outside sleeve so that spring is pressurized
Generate the card-bit part of default power output.
7. GIS bus according to claim 6, it is characterised in that: the section of the card-bit part is U-shaped, is had and power transmission
The bayonet of bar adaptation, thickness of the card-bit part on transmission rod extending direction are identical as the maximum allowable decrement of bellows.
8. GIS bus according to claim 6 or 7, it is characterised in that: the spring is helical spring, helical spring packet
Include being set in together in such a way that axis of rotation is overlapped, big springs and little spring that radial dimension is different, the big spring and
Little spring it is oppositely oriented.
9. GIS bus according to claim 8, it is characterised in that: the transmission rod includes screw rod and is screwed on screw rod
Attachment base, cooperation is supported in the trailing flank of the attachment base and big spring and little spring.
10. GIS bus according to claim 6 or 7, it is characterised in that: the rear end of the transmission rod is equipped with thread segment, institute
Stating locating part is the stop nut being screwed on transmission rod thread segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565439.3A CN109755909B (en) | 2018-12-20 | 2018-12-20 | Bus expansion joint and GIS bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565439.3A CN109755909B (en) | 2018-12-20 | 2018-12-20 | Bus expansion joint and GIS bus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109755909A true CN109755909A (en) | 2019-05-14 |
| CN109755909B CN109755909B (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811565439.3A Active CN109755909B (en) | 2018-12-20 | 2018-12-20 | Bus expansion joint and GIS bus |
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| CN (1) | CN109755909B (en) |
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|---|---|---|---|---|
| JPH0731040A (en) * | 1993-07-12 | 1995-01-31 | Toshiba Corp | Gas insulated bus |
| CN2314214Y (en) * | 1997-12-30 | 1999-04-14 | 机械工业部沈阳仪器仪表工艺研究所 | Force balancing corrugated compensator |
| JP2001157346A (en) * | 1999-11-24 | 2001-06-08 | Mitsubishi Electric Corp | Gas-insulated switchgear |
| CN203718253U (en) * | 2013-12-31 | 2014-07-16 | 无锡恒驰电器制造有限公司 | Balanced metal expansion joint |
| CN206481017U (en) * | 2017-01-09 | 2017-09-08 | 河南平高电气股份有限公司 | A kind of busbar assembly and the GIS device using the busbar assembly |
| CN206727558U (en) * | 2017-04-28 | 2017-12-08 | 国网河南渑池县供电公司 | A kind of cable anchor ear of angle adjustable |
| CN108413133A (en) * | 2018-05-30 | 2018-08-17 | 华南理工大学 | A kind of antidetonation suspension and support based on variable rate spring vibration damping |
| CN208257553U (en) * | 2018-06-15 | 2018-12-18 | 灵山鸿源机电设备有限公司 | A kind of stable type industrial motor being easily installed |
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| CN109755909B (en) | 2020-11-20 |
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