A kind of angular type expansion joint and its component
Technical field
The utility model is related to expansion joint technical fields, in particular to a kind of angular type expansion joint and its component.
Background technology
Gas-insulated metal closed power transmission line (Gas-insulated Metal-enclosed Transmission
) namely GIL Line.GIL is transmitted electricity using metal conducting bar, and is closed in the metal shell of ground connection, is realized by pressure
Gas-insulated.Compared with normal cable, GIL is big with transmission capacity, loss is small, not affected by environment, operational reliability is high, section
Save the remarkable advantages such as occupation of land, the supplement technology of transmission of electricity being particularly suitable as under overhead power transmission mode or cable power transmission limited situation.
In long range GIL engineerings, it is cold that build-up tolerance and heat expansion need to be absorbed by the stainless steel telescopic joint of compensating unit
The displacement that contracting, scene dismount.The elastic element that stainless steel telescopic joint (also referred to as expansion joint) mainly uses for corrugated stainless steel tubing, according to
Come to carry out axial direction, transverse direction, angular compensatory to pipeline by bellows telescoping collapse.
GIL transmission capacities are big, do not influenced by outside environmental elements such as dust, humidity and icing, and reliability is high, with environment phase
It mutually influences small.GIL power transmission and transformation are needed to absorb angular displacement with expansion joint.However, existing expansion joint is by compensating lateral position
In-migration indirect compensation angular displacement can not meet the compensation requirement in the small space of GIL pipelines, small range angle displacement.
Utility model content
The utility model provides a kind of angular type expansion joint, can preferably absorb angular displacement, compensation pipeline angle
To deformation.
The utility model is realized in this way:
A kind of angular type expansion joint, including:Bellows, first flange, second flange, first axle board group part, the second hinge
Carrier bar component, axis pin and bolt assembly;
The both ends of bellows include opposite the first side and the second side, and first flange is arranged in the first side, the second method
Orchid be arranged in the second side, first axle board group part be arranged bellows one end second flange side and with second flange, ripple
Pipe, first flange connected by bolt assembly, second hinge board group part be arranged the bellows other end second flange side and with
Second flange, bellows, first flange are connected by bolt assembly, and the end of bellows has flange along its circumferential direction, turns over
While being clamped between first flange and second flange, first axle board group part and second hinge plate member hinges;And first cuts with scissors
Carrier bar component, second hinge board group part and axis pin are at least correspondingly arranged on two groups.
Further, in a kind of embodiment of the utility model:
Bolt assembly includes screw bolt and nut, and screw bolt passes first axle board group part, second flange, first flange are simultaneously
It is connect with nut thread;Screw bolt passes second hinge board group part, second flange, first flange are simultaneously connect with nut thread.
Further, in a kind of embodiment of the utility model:
The stud socket of bolt has the first plain cushion, the first plain cushion to be arranged between the head and second flange of bolt.
Further, in a kind of embodiment of the utility model:
The stud socket of bolt has the second plain cushion, the second plain cushion to be arranged between first flange and nut.
Further, in a kind of embodiment of the utility model:
First axle board group part and second hinge board group part are correspondingly arranged two bolt assemblies.
Further, in a kind of embodiment of the utility model:
The material of first flange and second flange is aluminium alloy.
Further, in a kind of embodiment of the utility model:
The material of first axle board group part and second hinge board group part is stainless steel.
Further, in a kind of embodiment of the utility model:
First axle board group part, second hinge board group part and the matable assembly of axis pin composition are correspondingly arranged two groups, and two assemble
Seaming element is oppositely arranged.
Further, in a kind of embodiment of the utility model:
First axle board group part is hinged by axis pin with second hinge board group part.
A kind of expansion joint component, including above-mentioned angular type expansion joint.
The utility model has the beneficial effects that:The angular type expansion joint that the utility model is obtained by above-mentioned design, mainly
It is compensated for angular displacement.Bellows in angular type expansion joint primarily serves flexible and flecition, to play angular position
The compensation of shifting.The first axle board group part at angular type expansion joint both ends passes through bolt with second flange, bellows, first flange
Component connects, and second hinge board group part is connect with second flange, bellows, first flange by bolt assembly, first axle plate
Component is hinged by axis pin with second hinge board group part, when bellows is bent, first axle board group part and second hinge board group
Part can relatively rotate by a certain angle, to smoothly realize the bending of bellows.First axle board group part and second flange, the first method
Orchid is connected by bolt assembly, and second hinge board group part is connect with second flange, first flange by bolt assembly, such to connect
Each component can preferably be fixed together by the mode of connecing.
Description of the drawings
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
The restriction to range is should be considered as, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the structural schematic diagram for the angular type expansion joint that the utility model embodiment provides;
Fig. 2 is the A-A sectional views of angular type expansion joint in Fig. 1;
Fig. 3 is III regional enlarged drawing in Fig. 2;
Fig. 4 is IV regional enlarged drawing in Fig. 2.
Icon:The angular type expansion joints of 100-;110- bellowss;The first sides 111-;112- the second sides;113- flange;120-
First flange;130- second flanges;140- first axle board group parts;150- second hinge board group parts;160- axis pins;171- spiral shells
Bolt;172- nuts;The first plain cushions of 173-;The second plain cushions of 174-;180- matable assemblies.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in novel, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Therefore, the detailed description of the embodiment of the utility model provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the utility model of protection is sought, but is merely representative of the selected embodiment of the utility model.Based on the utility model
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Mode shall fall within the protection scope of the present invention.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be understood that term "upper", "lower", "left", "right", "inner", "outside",
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this practicality newly
Type and simplified description, do not indicate or imply the indicated equipment or element must have a particular orientation, with specific orientation
Construction and operation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.
In the present invention unless specifically defined or limited otherwise, the arts such as term " setting ", " connection ", " fixation "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be direct phase
Even, can also can be indirectly connected through an intermediary that the interaction of the connection or two elements inside two elements is closed
System.For the ordinary skill in the art, it can understand above-mentioned term in the present invention as the case may be
Concrete meaning.
Embodiment
Gas-insulated metal closed power transmission line namely GIL.GIL is transmitted electricity using metal conducting bar, and is closed in and is connect
In the metal shell on ground, gas-insulated is realized by pressure.Compared with normal cable, GIL is big with transmission capacity, loss is small,
The remarkable advantages such as not affected by environment, operational reliability is high, saving occupation of land, are particularly suitable as overhead power transmission mode or cable are sent
Supplement technology of transmission of electricity under electric limited situation.
In long range GIL engineerings, it is cold that build-up tolerance and heat expansion need to be absorbed by the stainless steel telescopic joint of compensating unit
The displacement that contracting, scene dismount.The elastic element that stainless steel telescopic joint (also referred to as expansion joint) mainly uses is corrugated stainless steel tubing
110, come to carry out axial direction, transverse direction, angular compensatory to pipeline by 110 telescoping collapse of bellows.
The present embodiment provides a kind of angular type expansion joints 100, please refer to Fig. 1 and Fig. 2.The angular type expansion joint 100 is main
Lead to GIL piping lane engineerings applied to Soviet Union, is used for the compensation of angular displacement.
Specifically, angular type expansion joint 100 includes:Bellows 110, first flange 120, second flange 130, first axle
Board group part 140, second hinge board group part 150, axis pin 160 and bolt assembly.
The both ends of bellows 110 include opposite the first side 111 and the second side 112.As shown, bellows 110
First side 111 at both ends is opposed, inwardly directed, and the second side 112 is out against.
Wherein, the setting of first flange 120 is arranged in the first side 111, second flange 130 in the second side 112, first axle plate
Component 140 is arranged 130 side of second flange in 110 one end of bellows and passes through spiral shell with second flange 130, first flange 120
Bolt assembly connect, second hinge board group part 150 be arranged 130 side of second flange of 110 other end of bellows and with the second method
Orchid 130, first flange 120 are connected by bolt assembly.As shown in Fig. 2, first axle board group part 140 is arranged in bellows 110
Right end, the left end in bellows 110 is arranged in second hinge board group part 150.The end of bellows 110 has along its circumferential direction
Flange 113, flange 113 are clamped between first flange 120 and second flange 130.As shown, first axle board group part
140 settings are arranged in 110 left end of bellows, second hinge board group part 150 in 110 right end of bellows.In addition, first axle board group
Part 140 is hinged with second hinge board group part 150;In the present embodiment, first axle board group part 140 and second hinge board group part
150 is hinged by axis pin 160.And first axle board group part 140, second hinge board group part 150 are at least correspondingly arranged with axis pin 160
There are two groups.
The angular type expansion joint 100 of the present embodiment is mainly used for angular displacement compensation.Ripple in angular type expansion joint 100
Pipe 110 primarily serves flexible and flecition, to play the compensation of angular displacement.The of angular 100 both ends of type expansion joint
One flap component 140 is connect with second flange 130, bellows 110, first flange 120 by bolt assembly, second hinge plate
Component 150 is connect with second flange 130, bellows 110, first flange 120 by bolt assembly, first axle board group part 140
It is hinged by axis pin 160 with second hinge board group part 150, when bellows 110 is bent, first axle board group part 140 and second
Flap component 150 can turn an angle with respect to axis pin 160, to smoothly realize the bending of bellows 110.First axle plate
Component 140 is connect with second flange 130, first flange 120 by bolt assembly, second hinge board group part 150 and second flange
130, first flange 120 is connected by bolt assembly, and each component can preferably be fixed together by such connection type.
In the present embodiment, first axle board group part 140, second hinge board group part 150 and axis pin 160 form with being combined
Part 180 is correspondingly arranged two groups, and two groups of matable assemblies 180 are oppositely arranged.I.e. two groups of matable assemblies 180 are about in bellows 110
Mandrel axial symmetry.The benefit being arranged in this way is the benefit that matable assembly 180 can preferably coordinate the realization angular displacement of bellows 110
It repays.
Further, in order to reduce the weight of angular type expansion joint 100, in the present embodiment, first flange 120 and second
The material of flange 130 is aluminium alloy.The material of first axle board group part 140 and second hinge board group part 150 is stainless steel.
Due to the first flange 120, second of the first axle board group part 140 of stainless steel, second hinge board group part 150 and aluminium material
Flange 130 is difficult to realize preferably to be welded.Take preferably being solved in such a way that bolt assembly is fixed for the present embodiment
This problem.In addition, the material of bellows 110 is stainless steel, bellows 110 cannot be welded preferably with flange, by bellows
110 are arranged to 113 structure of flange, to ensure preferably connection effect and sealing performance.
Specifically, in the present embodiment, bolt assembly includes bolt 171 and nut 172, please refers to Fig. 3 and Fig. 4, bolt
171 sequentially pass through first axle board group part 140, second flange 130, first flange 120 and are threadedly coupled with nut 172;Bolt
171 sequentially pass through second hinge board group part 150, second flange 130, first flange 120 and are threadedly coupled with nut 172.
Further, in the present embodiment, the stud socket of bolt 171 has the first plain cushion 173, the setting of the first plain cushion 173
Between the head of bolt 171 and second flange 130.The stud socket of bolt 171 has the second plain cushion 174, the second plain cushion 174 to set
It sets between first flange 120 and nut 172.
First plain cushion 173 and the second plain cushion 174 contribute between bolt 171 and first flange 120, second flange 130
Damping, and its fastening effect can be increased.
Further, in the present embodiment, first axle board group part 140 and second hinge board group part 150 are correspondingly arranged
Two bolt assemblies.It should be noted that in other embodiments, first axle board group part 140 and second hinge board group part 150
Also three, four bolt assemblies can be correspondingly arranged, the embodiments of the present invention are to first axle board group part 140 and second hinge
The bolt assembly number that board group part 150 is correspondingly arranged is not specifically limited.
In addition, in the present embodiment, the bolt assembly at the both ends of bellows 110 is correspondingly arranged.That is 110 left end of bellows
It is oppositely arranged with the bolt assembly of right end.
The present embodiment also provides a kind of expansion joint component comprising above-mentioned angular type expansion joint 100 and pipeline, pipeline with
Angular type expansion joint 100 and pipeline, pipeline are connect with second flange 130.
To sum up, the bellows 110 in the angular type expansion joint 100 of the present embodiment primarily serves flexible and flecition, from
And play the compensation of angular displacement.The first axle board group part 140 and second flange 130, wave at angular 100 both ends of type expansion joint
Line pipe 110, first flange 120 are connected by bolt assembly, second hinge board group part 150 and second flange 130, bellows 110,
First flange 120 is connected by bolt assembly, and first axle board group part 140 is cut with scissors with second hinge board group part 150 by axis pin 160
It connects, when bellows 110 is bent, first axle board group part 140 and second hinge board group part 150 can rotate one relative to axis pin 160
Determine angle, to smoothly realize the bending of bellows 110, and can preferably offset the blind flange force of angular type expansion joint 100.First
Flap component 140 is connect with second flange 130, bellows 110, first flange 120 by bolt assembly, second hinge board group
Part 150 is connect with second flange 130, bellows 110, first flange 120 by bolt assembly, and such connection type can be more
Each component is fixed together well.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.