CN112735897B - Grounding switch and interphase coupling device thereof - Google Patents
Grounding switch and interphase coupling device thereof Download PDFInfo
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- CN112735897B CN112735897B CN202011468976.3A CN202011468976A CN112735897B CN 112735897 B CN112735897 B CN 112735897B CN 202011468976 A CN202011468976 A CN 202011468976A CN 112735897 B CN112735897 B CN 112735897B
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- main shaft
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- 230000008878 coupling Effects 0.000 title claims abstract description 119
- 238000010168 coupling process Methods 0.000 title claims abstract description 119
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 119
- 230000016507 interphase Effects 0.000 title claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 16
- 239000012141 concentrate Substances 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 17
- 230000009286 beneficial effect Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 11
- 239000013585 weight reducing agent Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000003068 static effect Effects 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/06—Interlocking mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- Excavating Of Shafts Or Tunnels (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model relates to a grounding switch and an inter-phase coupling device thereof, wherein the inter-phase coupling device comprises: two coupling members; each coupling piece is provided with a connecting plate part, and each connecting plate part is detachably or movably provided with a connecting rod fixing piece for press-fitting and fixing the corresponding side main shaft connecting rod on the corresponding connecting plate part through the connecting rod fixing piece; each coupling piece is provided with a clamping plate part, the clamping plate parts are vertically arranged with the connecting plate parts, and the two clamping plate parts are oppositely arranged at intervals to form a clamping gap for inserting a cutter bar correspondingly; the bolt fastening structure forces the two clamping plate parts to clamp and fix the corresponding cutter bar. The interphase coupling device is used for installing a main shaft for connection and fixedly installing a grounding cutter bar, is good in inheritance, and can concentrate installation positions on the interphase coupling device for a grounding switch, so that the assembly precision is conveniently and effectively controlled.
Description
Technical Field
The utility model belongs to the technical field of grounding switches, and particularly relates to a grounding switch and an interphase coupling device thereof.
Background
The three-phase grounding switch is used for guaranteeing the grounding safety of the whole loop, and synchronous opening and closing operation of the grounding cutter bar and the static contact is needed for guaranteeing the grounding effect, so that higher requirements are put forward on synchronous transmission and processing and transmission precision of the grounding switch. In addition, the grounding switch needs to repeatedly perform three-phase switching operation in the field installation and adjustment process to adjust the product to the optimal use state, in the adjustment process, the transmission mechanism needs to be repeatedly disassembled and assembled, and in the operation process, if gaps among the grounding switch product parts are formed and cannot be closed in place, the transmission chain needs to be disassembled for readjustment, and the adjustment is time-consuming and labor-consuming.
The utility model discloses a grounding switch structure with adjustable installation position in Chinese patent publication No. CN203013596U, which comprises inter-phase connecting rods, wherein each inter-phase connecting rod consists of sub-inter-phase connecting rods which are fixedly connected together through hoops, each inter-phase connecting rod is driven to rotate by an operating mechanism, each inter-phase connecting rod is fixedly provided with a three-phase moving contact assembly through hoops in a locking manner, and when each inter-phase connecting rod rotates, the three-phase moving contact assembly is driven to be opened or closed with a corresponding fixed contact assembly. Through staple bolt fixed assembly for the earthing switch is detachable structure, can become flexible the staple bolt when adjusting, realizes the adjustment. In the above-mentioned earthing switch, moving contact subassembly includes backup pad, aluminium conductive briquetting, staple bolt, aluminum pipe welding contact finger support and copper product contact finger, and wherein, aluminium conductive briquetting and backup pad are together through bolt clamp aluminum pipe welding contact finger support, and as a whole, rethread staple bolt is held tightly on alternate connecting rod.
Among the above-mentioned earthing switch, form alternate connecting rod through staple bolt fixed connection between the alternate connecting rod of son, rethread backup pad, staple bolt isotructure and moving contact subassembly fixed connection, the hookup location of alternate connecting rod of son and moving contact subassembly are staggered with the hookup location of alternate connecting rod, and every assembly structure is only used for the alternate connecting rod of assembly or only is used for the assembly moving contact subassembly, leads to the assembly position in the whole transmission structure more, and easy accumulation assembly error is unfavorable for guaranteeing assembly precision.
Disclosure of Invention
The utility model aims to provide an interphase coupling device of a grounding switch, which is used for solving the technical problem that in the prior art, the assembly structure at each position in the transmission structure of the grounding switch is only used for assembling interphase connecting rods or only used for assembling moving contact assemblies, so that the assembly devices in the whole transmission structure are too many. Meanwhile, the utility model also provides a grounding switch using the interphase coupling device.
In order to achieve the above purpose, the technical scheme of the interphase coupling device of the grounding switch provided by the utility model is as follows: an interphase coupling device for a grounding switch, comprising:
the two coupling pieces are sequentially arranged along the left-right direction and are used for being matched with each other to clamp and fix the corresponding cutter bars and are in transmission connection with the spindle connecting rods on the two sides;
each coupling piece is provided with a connecting plate part which extends along the left-right direction, each connecting plate part is respectively detachably or movably provided with a connecting rod fixing piece or each connecting plate part is respectively provided with a fixing piece mounting structure which is used for detachably or movably assembling the connecting rod fixing piece and is used for press-fitting and fixing the corresponding side main shaft connecting rod on the corresponding connecting plate part through the connecting rod fixing piece;
each coupling piece is provided with a clamping plate part, the clamping plate parts are vertically arranged with the connecting plate parts, and the two clamping plate parts are oppositely arranged at intervals to form a clamping gap for inserting a cutter bar correspondingly;
the bolt fastening structure applies opposite acting force to the two clamping plate parts to force the two clamping plate parts to clamp and fix the corresponding cutter bars.
The beneficial effects are that: according to the interphase coupling device of the grounding switch, provided by the utility model, the two connecting plate parts on the two coupling parts can be matched with the connecting rod fixing parts to fix the corresponding side main shaft connecting rods on the connecting plate parts, the two clamping plate parts on the two coupling parts are matched with and clamp and fix the corresponding grounding cutter bars, so that the fixed assembly of the grounding cutter bars and the main shaft on the grounding switch is realized, the interphase coupling device is used for installing the main shaft for connection and also for fixedly installing the grounding cutter bars, the inheritance is good, and for the grounding switch, the installation positions can be concentrated on the interphase coupling device, and the assembly precision is convenient and effective. And the position adjustment of the main shaft connecting rod and the ground cutter bar relative to the coupling piece is conveniently realized by utilizing the connecting rod fixing piece and the bolt fastening structure.
As a further improvement, connecting plate parts of the coupling pieces are respectively provided with connecting rod mounting grooves, the connecting rod mounting grooves extend along the left-right direction, and one side of each connecting rod mounting groove is of an opening structure for assembling corresponding side spindle connecting rods so that the corresponding side spindle connecting rods are pressed and fixed in the connecting rod mounting grooves by the connecting rod fixing pieces;
the opposite inner sides of the clamping plate parts of the coupling parts are respectively provided with a ground cutter bar mounting groove for positioning and accommodating the ground cutter bar.
The beneficial effects are that: the connecting rod mounting groove is utilized to conveniently position and place the main shaft connecting rod, the ground cutter bar mounting groove is utilized to place the ground cutter bar, the assembly efficiency can be improved, and the assembly effect is ensured.
As a further improvement, the connecting rod mounting groove is a semicircular groove.
As a further improvement, the center of each clamping plate part is respectively provided with a weight-reducing avoiding hole, and the weight-reducing avoiding holes correspond to the connecting rod mounting grooves on the corresponding coupling pieces.
The beneficial effects are that: the weight reduction avoidance hole is formed, so that the weight reduction avoidance hole can play a role in avoiding on one hand, the influence of assembly errors is eliminated, and on the other hand, the weight reduction effect can be achieved.
As a further improvement, a plurality of grooves are provided on the inner wall surface of the connecting rod mounting groove for increasing the friction force between the connecting rod mounting groove and the corresponding spindle connecting rod.
The beneficial effects are that: and the grooves are formed, so that static friction force is increased, and the fastening assembly effect is improved.
As a further improvement, the grooves extend in the left-right direction and are distributed in sequence in the width direction of the link installation groove.
The beneficial effects are that: the grooves extend along the left-right direction, so that the processing is convenient.
As a further improvement, the notches of the two connecting rod mounting grooves on the two coupling parts face opposite directions.
The beneficial effects are that: the notches of the two connecting rod mounting grooves are opposite, so that the stress of the whole main shaft in the grounding switch is conveniently optimized.
As a further improvement, the ground cutter bar mounting grooves on the two coupling parts are of through groove structures with two open ends.
The beneficial effects are that: the ground cutter bar mounting groove is of a through groove structure, so that the ground cutter bar is convenient to arrange.
As a further improvement, each coupling piece is detachably provided with the connecting rod fixing piece, and the connecting rod fixing piece is a hoop or a U-shaped bolt.
The beneficial effects are that: and the anchor ear or the U-shaped bolt is used as a connecting rod fixing piece, so that the fastening assembly is convenient to realize.
The technical scheme of the grounding switch using the interphase coupling device provided by the utility model is as follows: a grounding switch, comprising:
the main shaft extends along the left-right direction in the axial direction and is used for being driven to rotate by the operating mechanism;
the three grounding cutter bars are sequentially and alternately fixed on the main shaft along the left-right direction, and are driven to rotate by the main shaft so as to control the opening and closing of the grounding switch;
the main shaft includes four main shaft connecting rods of coaxial arrangement, and four main shaft connecting rods include two alternate connecting rods and two limit looks connecting rods, and arbitrary adjacent two connecting rods in four main shaft connecting rods are respectively through alternate shaft coupling fixed assembly for four main shaft connecting rods are together through three alternate shaft coupling fixed assembly, and every ground cutter arbor corresponds fixed assembly on an alternate shaft coupling, and each alternate shaft coupling includes respectively:
the two coupling pieces are sequentially arranged along the left-right direction and are used for being matched with each other to clamp and fix the corresponding cutter bars and are in transmission connection with the spindle connecting rods on the two sides;
each coupling piece is provided with a connecting plate part which extends along the left-right direction, each connecting plate part is respectively detachably or movably provided with a connecting rod fixing piece or each connecting plate part is respectively provided with a fixing piece mounting structure which is used for detachably or movably assembling the connecting rod fixing piece and is used for press-fitting and fixing the corresponding side main shaft connecting rod on the corresponding connecting plate part through the connecting rod fixing piece;
each coupling piece is provided with a clamping plate part, the clamping plate parts are vertically arranged with the connecting plate parts, and the two clamping plate parts are oppositely arranged at intervals to form a clamping gap for inserting a cutter bar correspondingly;
the bolt fastening structure applies opposite acting force to the two clamping plate parts to force the two clamping plate parts to clamp and fix the corresponding cutter bars.
The beneficial effects are that: in the grounding switch provided by the utility model, four spindle connecting rods are fastened and assembled on a spindle by utilizing three inter-phase coupling devices, for the inter-phase coupling devices, two connecting plate parts on two coupling parts can be matched with connecting rod fixing parts to fix corresponding side spindle connecting rods on the connecting plate parts, and two clamping plate parts on two coupling parts are matched with and clamp corresponding grounding cutter bars to realize the fixed assembly of the grounding cutter bars and the spindle on the grounding switch, the inter-phase coupling devices are used for installing spindle connection and also for fixedly installing the grounding cutter bars, the inheritance is good, and for the grounding switch, the installation positions can be concentrated on the inter-phase coupling devices, so that the assembly precision is convenient and effective. And the position adjustment of the main shaft connecting rod and the ground cutter bar relative to the coupling piece is conveniently realized by utilizing the connecting rod fixing piece and the bolt fastening structure.
As a further improvement, connecting plate parts of the coupling pieces are respectively provided with connecting rod mounting grooves, the connecting rod mounting grooves extend along the left-right direction, and one side of each connecting rod mounting groove is of an opening structure for assembling corresponding side spindle connecting rods so that the corresponding side spindle connecting rods are pressed and fixed in the connecting rod mounting grooves by the connecting rod fixing pieces;
the opposite inner sides of the clamping plate parts of the coupling parts are respectively provided with a ground cutter bar mounting groove for positioning and accommodating the ground cutter bar.
The beneficial effects are that: the connecting rod mounting groove is utilized to conveniently position and place the main shaft connecting rod, the ground cutter bar mounting groove is utilized to place the ground cutter bar, the assembly efficiency can be improved, and the assembly effect is ensured.
As a further improvement, the connecting rod mounting groove is a semicircular groove.
As a further improvement, the center of each clamping plate part is respectively provided with a weight-reducing avoiding hole, and the weight-reducing avoiding holes correspond to the connecting rod mounting grooves on the corresponding coupling pieces.
The beneficial effects are that: the weight reduction avoidance hole is formed, so that the weight reduction avoidance hole can play a role in avoiding on one hand, the influence of assembly errors is eliminated, and on the other hand, the weight reduction effect can be achieved.
As a further improvement, a plurality of grooves are provided on the inner wall surface of the connecting rod mounting groove for increasing the friction force between the connecting rod mounting groove and the corresponding spindle connecting rod.
The beneficial effects are that: and the grooves are formed, so that static friction force is increased, and the fastening assembly effect is improved.
As a further improvement, the grooves extend in the left-right direction and are distributed in sequence in the width direction of the link installation groove.
The beneficial effects are that: the grooves extend along the left-right direction, so that the processing is convenient.
As a further improvement, the notches of the two connecting rod mounting grooves on the two coupling parts face opposite directions.
The beneficial effects are that: the notches of the two connecting rod mounting grooves are opposite, so that the stress of the whole main shaft in the grounding switch is conveniently optimized.
As a further improvement, the ground cutter bar mounting grooves on the two coupling parts are of through groove structures with two open ends.
The beneficial effects are that: the ground cutter bar mounting groove is of a through groove structure, so that the ground cutter bar is convenient to arrange.
As a further improvement, each coupling piece is detachably provided with the connecting rod fixing piece, and the connecting rod fixing piece is a hoop or a U-shaped bolt.
The beneficial effects are that: and the anchor ear or the U-shaped bolt is used as a connecting rod fixing piece, so that the fastening assembly is convenient to realize.
Drawings
Fig. 1 is a schematic structural diagram of a grounding switch provided by the present utility model;
FIG. 2 is a schematic view of the interphase coupling of FIG. 1;
FIG. 3 is a schematic view of the coupling member of FIG. 2;
FIG. 4 is a front view of the coupling member of FIG. 3;
FIG. 5 is a top view of FIG. 4;
fig. 6 is a half cross-sectional view of fig. 4.
Reference numerals illustrate:
1. a ground cutter bar; 2. a spindle connecting rod; 21. a left side phase connecting rod; 22. left alternate connecting rods; 23. a right alternate connecting rod; 24. a right side phase connecting rod; 3. an inter-phase coupling device; 30. a coupling member; 31. a connection plate portion; 310. a connecting rod installation groove; 311. a groove; 312. a radial hole; 32. a clamping plate part; 320. a ground cutter bar mounting groove; 321. a weight reduction avoidance hole; 33. u-shaped bolts; 34. and (5) fastening a bolt.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" is not intended to exclude processes, methods comprising such element.
In the description of the present utility model, the terms "mounted," "connected," "coupled," and "connected," as may be used broadly, and may be connected, for example, fixedly, detachably, or integrally, unless otherwise specifically defined and limited; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art in specific cases.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "provided" may be interpreted broadly, and for example, an object "provided" may be a part of a body, may be separately disposed from the body, and may be connected to the body, where the connection may be a detachable connection or an undetachable connection. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art in specific cases.
The present utility model is described in further detail below with reference to examples.
Specific embodiment 1 of the grounding switch provided by the utility model:
in the grounding switch provided by the utility model, adjacent spindle connecting rods 2 are fixedly assembled together by utilizing the inter-phase coupling devices 3 to form a spindle, the ground cutter bars 1 are fixedly installed on each inter-phase coupling device 3 in an adjustable position respectively, during assembly, the three inter-phase coupling devices 3 can be directly used for fixedly assembling the spindle connecting rods 2 and the ground cutter bars 1, the assembly positions are concentrated, and the assembly precision is convenient to control. During adjustment, split-phase assembly and disassembly adjustment is conveniently carried out on the phase to be adjusted, and the debugging requirement is met.
The structure of the grounding switch provided in this embodiment is shown in fig. 1 to 6, and the grounding switch includes a main shaft extending in a left-right direction, the main shaft is used for being driven to rotate by an operating mechanism, the operating mechanism can drive the main shaft to rotate through a link mechanism, three grounding cutter bars 1 are sequentially and fixedly assembled on the main shaft at intervals along the left-right direction, and when the grounding switch works, the main shaft is driven to rotate by the operating mechanism, and the main shaft drives the three grounding cutter bars 1 to rotate so as to control the opening and closing operation of the grounding switch.
In this embodiment, the spindle mainly includes four spindle links 2, and the four spindle links 2 are fixedly assembled together by three inter-phase coupling devices 3. The four spindle connecting rods 2 comprise two alternate connecting rods and two side connecting rods, the two side connecting rods are located on two sides of the two alternate connecting rods, namely a left side alternate connecting rod 21 and a right side alternate connecting rod 24, the two alternate connecting rods are a left side alternate connecting rod 22 and a right side alternate connecting rod 23, the left side alternate connecting rod 21 and the left side alternate connecting rod 22 are fixedly assembled together through a left side alternate coupling device 3, the two alternate connecting rods are fixedly assembled together through a middle alternate coupling device 3, the right side alternate connecting rod 23 and the right side alternate connecting rod 24 are fixedly assembled together through a right side alternate coupling device 3, and the three ground cutter bars 1 are fixedly assembled on the three alternate coupling devices 3 in a one-to-one correspondence manner.
The three inter-phase coupling devices 3 have the same structure, and the structure of the inter-phase coupling device 3 is described by taking the middle inter-phase coupling device 3 as an example, and how to assemble the spindle connecting rods 2 on the two sides and how to fixedly assemble the cutter bar 1.
The intermediate inter-phase coupling 3 is constructed as shown in fig. 2 to 6, and includes two coupling members 30 arranged in sequence in the left-right direction for cooperating with each other to clamp and fix the corresponding cutter bar 1 and to be in driving connection with the spindle links 2 on the respective sides. The two coupling members 30 have the same structure, and each coupling member comprises a clamping plate portion 32 extending vertically from top to bottom and a connecting plate portion 31 extending transversely from left to right, wherein the connecting plate portions 31 are used for fixedly assembling the corresponding spindle connecting rod 2, and the clamping plate portions 32 of the two coupling members 30 are used for clamping and fixing the corresponding cutter bar 1.
In this embodiment, the connecting plate portion 31 on each coupling member 30 is provided with a connecting rod mounting groove 310, the connecting rod mounting groove 310 extends along the left-right direction, and one side is of an opening structure for assembling the spindle connecting rod 2 on the corresponding side, two U-shaped bolts 33 are detachably and fixedly mounted on the connecting plate portion 31, the two U-shaped bolts 33 are distributed at intervals along the left-right direction, and the two U-shaped bolts 33 serve as connecting rod fixing members for fixing the corresponding spindle connecting rod 2 assembled in the connecting rod mounting groove 310.
The link mounting groove 310 is a semicircular groove for matching with the external shape of the spindle link 2. In order to enhance the static friction, grooves 311 are provided on the inner wall surface of the link installation groove 310, the grooves 311 extend in the left-right direction, and a plurality of grooves 311 are sequentially distributed in the width direction of the link installation groove 310. The groove 311 can be a rectangular groove or a trapezoid groove, so that the static friction force of the spindle connecting rod 2 can be effectively ensured.
In addition, in order to balance the overall spindle force, the notches of the two link mounting grooves 310 on the two coupling members 30 face opposite directions.
In addition, in order to improve the fastening force, radial holes 312 are provided at the bottom of the link mounting groove 310, and fastening screws may be inserted into the radial holes 312 to improve the fixing and assembling effect of the spindle link 2 and the connection plate portion 31.
For the two coupling members 30, the two clamping plate parts 32 are oppositely arranged, and the opposite inner sides of each clamping plate part 32 are respectively provided with a ground cutter bar mounting groove 320 for positioning and accommodating the ground cutter bar 1, the extending directions of the two ground cutter bar mounting grooves 320 are perpendicular to the left-right directions, the two ground cutter bar mounting grooves 320 are rectangular grooves and are through groove structures with two open ends, and the ground cutter bar mounting grooves 320 are conveniently used for telescopic adjustment of the ground cutter bar 1. In fact, the through slot structure also facilitates the passing of the cutter bar 1, since the tail of the cutter bar 1 is usually provided with a counterweight, so as to save resetting operation force.
The two coupling members 30 are fastened together in opposition by means of a bolt fastening structure which applies opposing fastening forces to the two clamping plate portions 32 to clamp the respective tool bars 1. The clamping plate parts 32 are square plates, bolt mounting holes are respectively formed in four corners of the corresponding square plates, the bolt fastening structure comprises bolt mounting holes in the two clamping plate parts 32 and four fastening bolts 34 correspondingly penetrating the bolt mounting holes, and when the ground cutter bar 1 is assembled, the ground cutter bar 1 is positioned in the ground cutter bar mounting groove 320 and the two clamping plate parts 32 are clamped and fixed by the fastening bolts 34.
In order to achieve avoidance and weight reduction, for each coupling member 30, a weight reduction avoidance hole 321 is respectively provided at the center of the clamping plate portion 32 of each coupling member 30, and the weight reduction avoidance hole 321 corresponds to the connecting rod mounting groove 310 on the corresponding coupling member 30.
The coupling 30 can be cast during specific processing, and the structure on the coupling can be formed by machining, so that the coupling is convenient to manufacture.
During assembly, the U-shaped bolts 33 and the shaft coupling pieces 30 can be fixed on the spindle connecting rods 2 on the two sides respectively, then the corresponding ground cutter bars 1 are inserted between the two clamping plate parts 32, the fastening bolts 34 are screwed, the ground cutter bars 1 are clamped and fixed on the two shaft coupling pieces 30, assembly is completed, and the three ground cutter bars 1 can be driven by the spindle to rotate to realize opening and closing operations.
In the adjusting process, if the ground cutter bar 1 is not in place, the fastening bolt 34 or the U-shaped bolt 33 can be loosened, when the fastening bolt 34 is loosened, the position of the ground cutter bar 1 can be telescopically adjusted, the U-shaped bolt 33 is loosened, the assembling position of the inter-phase coupling device 3 and the corresponding side main shaft connecting rod 2 can be rotatably adjusted, then the inter-phase coupling device is fixed, the inter-phase coupling device is repeatedly adjusted until the use requirement position is met, and during the adjusting process, the inter-phase coupling assembly can be repeatedly loosened and adjusted.
In the embodiment, the stepless adjustment of the extending position and the rotating position of the ground cutter bar can be effectively realized by utilizing the inter-phase coupling device, the adjustment is more convenient, and the use requirement can be rapidly and effectively met. The field installation positions are mainly concentrated at the three interphase coupling devices, so that the whole installation accuracy and accumulated errors are conveniently controlled, the field installation efficiency and the operation reliability can be effectively improved, and the product operation and maintenance in the whole life cycle are convenient.
Specific embodiment 2 of the grounding switch provided by the utility model:
the differences from example 1 are mainly that: in embodiment 1, the link fixing member on the connection plate portion is a U-bolt. In this embodiment, the anchor ear may be used as a link fixing member to fixedly assemble the spindle link on the corresponding side with the connection plate portion on the corresponding coupling member.
Specific embodiment 3 of the grounding switch provided by the utility model:
the differences from example 1 are mainly that: in embodiment 1, a detachable U-bolt is provided in advance for each coupling member, and used as a link fixing member. In this embodiment, only four screw mounting holes are provided on the connection plate portion, and the screw mounting holes are used as a fixing member mounting structure, so that a constructor can mount a connecting rod fixing member on the connection plate portion during field installation, and the connecting rod fixing member can select structures such as anchor clamps or U-shaped bolts on the field by the constructor.
Specific embodiment 4 of the grounding switch provided by the utility model:
the differences from example 1 are mainly that: in embodiment 1, a connecting rod installation groove is formed in the connecting plate part and used for placing the main shaft connecting rod, and a ground cutter bar installation groove is formed in the clamping plate part and used for positioning and placing the ground cutter bar, so that the assembly is convenient, and the adjustment is also convenient. In this embodiment, save connecting rod mounting groove and ground cutter arbor mounting groove, splint portion and connecting rod plate portion are dull and stereotyped portion, guarantee can effectively clamping fixed main shaft connecting rod and ground cutter arbor can.
Specific embodiment 5 of the grounding switch provided by the utility model:
the differences from example 1 are mainly that: in example 1, the static friction force was increased by adding grooves, and the spindle connecting rod and the connecting plate portion were fixedly assembled together by using set screws. In the present embodiment, if the fastening effect can be ensured, the fastening fitting can also be ensured by adding only the groove or by providing only the set screw.
Specific embodiment 6 of the grounding switch provided by the utility model:
the differences from example 1 are mainly that: in embodiment 1, the notches of the two link mounting grooves on the two coupling members are opposite in orientation. In the embodiment, the notch orientations of the two connecting rod mounting grooves on the two coupling parts are the same, so that the spindle connecting rods are ensured to be coaxial.
Specific embodiment 7 of the grounding switch provided by the utility model:
the differences from example 1 are mainly that: in embodiment 1, a U-bolt as a link fixing member is detachably mounted on a connection plate portion. In this embodiment, the connecting rod fixing member adopts a circular arc buckle cover, one side of the circular arc buckle cover is hinged on the connecting plate portion, and the other side of the circular arc buckle cover can be detachably assembled with the connecting plate portion through structures such as fastening bolts or buckles, so that the circular arc buckle cover can be assembled on the connecting plate portion in an openable and closable manner, after the circular arc buckle cover is opened, the spindle connecting rod can be adjusted, and after the spindle connecting rod is locked, the spindle connecting rod and the connecting plate portion can be fixedly assembled together.
The structure of the interphase coupling device in the embodiment of the grounding switch is the same as that of the interphase coupling device in the grounding switch embodiment 1, and is not described herein.
Of course, in other embodiments, the inter-phase coupling device in any of the embodiments 2 to 7 of the grounding switch may also be used, and will not be described herein.
It should be noted that the above description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above embodiment, but may be modified without inventive effort or equivalent substitution of some technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. An interphase coupling device for a grounding switch, comprising:
the two coupling pieces (30) are sequentially arranged along the left-right direction and are used for being matched with each other to clamp and fix the corresponding cutter bar (1) and are in transmission connection with the spindle connecting rods (2) at the two sides;
each coupling piece (30) is respectively provided with a connecting plate part (31), the connecting plate parts (31) extend along the left-right direction, each connecting plate part (31) is respectively detachably or movably provided with a connecting rod fixing piece or each connecting plate part (31) is respectively provided with a fixing piece mounting structure, and the fixing piece mounting structure is used for detachably or movably assembling the connecting rod fixing piece and is used for press-fitting and fixing the corresponding side main shaft connecting rod (2) on the corresponding connecting plate part (31) through the connecting rod fixing piece;
each coupling piece (30) is provided with a clamping plate part (32), the clamping plate parts (32) are vertically arranged with the connecting plate parts (31), and the two clamping plate parts (32) are oppositely arranged at intervals to form a clamping gap for inserting the corresponding cutter bar (1);
the bolt fastening structure applies opposite acting force to the two clamping plate parts (32) to force the two clamping plate parts (32) to clamp and fix the corresponding cutter bar (1).
2. An interphase coupling device for a grounding switch as claimed in claim 1, wherein,
connecting plate parts (31) of the coupling pieces (30) are respectively provided with connecting rod mounting grooves (310), the connecting rod mounting grooves (310) extend along the left-right direction, and one side of the connecting rod mounting grooves is of an opening structure for assembling corresponding side main shaft connecting rods (2) so that the corresponding side main shaft connecting rods (2) are pressed and fixed in the connecting rod mounting grooves (310) by the connecting rod fixing pieces;
ground cutter bar mounting grooves (320) are respectively formed in opposite inner sides of the clamping plate parts (32) of the coupling pieces (30) and are used for positioning and accommodating the ground cutter bars (1).
3. The interphase coupling device of a grounding switch according to claim 2, wherein the link mounting groove is a semicircular groove.
4. The interphase coupling device of the grounding switch according to claim 2, characterized in that the center of each clamping plate part (32) is respectively provided with a weight-reducing avoidance hole (321), and the weight-reducing avoidance holes (321) correspond to the connecting rod mounting grooves (310) on the corresponding coupling members (30).
5. The interphase coupling device of a grounding switch according to claim 2 or 3 or 4, characterized in that a plurality of grooves (311) are provided on the inner wall surface of the link mounting groove (310) for increasing the friction force of the link mounting groove (310) and the corresponding spindle link (2).
6. The interphase coupling device of a grounding switch according to claim 5, wherein the grooves (311) extend in the left-right direction and are distributed in sequence in the width direction of the link mounting groove (310).
7. An inter-phase coupling device for a grounding switch according to claim 2, 3 or 4, wherein the notches of the two link mounting grooves (310) on the two coupling members (30) are oppositely directed.
8. The interphase coupling device of a grounding switch according to claim 2, 3 or 4, characterized in that the grounding bar mounting grooves (320) on both coupling members (30) are open-ended through groove structures.
9. Interphase coupling device of a grounding switch according to any of claims 1 to 4, characterized in that each coupling piece (30) is detachably fitted with the link fixing piece, which is a hoop or a U-bolt (33).
10. A grounding switch, comprising:
the main shaft extends along the left-right direction in the axial direction and is used for being driven to rotate by the operating mechanism;
the three grounding knife bars (1) are sequentially and alternately fixed on the main shaft along the left-right direction, and are driven to rotate by the main shaft so as to control the opening and closing of the grounding switch;
the grounding switch is characterized in that the main shaft comprises four main shaft connecting rods (2) which are coaxially arranged, the four main shaft connecting rods (2) comprise two inter-phase connecting rods and two side-phase connecting rods, any two adjacent connecting rods in the four main shaft connecting rods (2) are respectively and fixedly assembled through inter-phase coupling devices (3), the four main shaft connecting rods (2) are fixedly assembled together through the three inter-phase coupling devices (3), each grounding cutter bar (1) is correspondingly and fixedly assembled on one inter-phase coupling device (3), and the inter-phase coupling devices (3) are structurally characterized in that the inter-phase coupling devices of the grounding switch are adopted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011468976.3A CN112735897B (en) | 2020-12-14 | 2020-12-14 | Grounding switch and interphase coupling device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011468976.3A CN112735897B (en) | 2020-12-14 | 2020-12-14 | Grounding switch and interphase coupling device thereof |
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| CN112735897A CN112735897A (en) | 2021-04-30 |
| CN112735897B true CN112735897B (en) | 2024-03-29 |
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