CN114400600B - Three-phase common-box bus conductor supporting device - Google Patents

Abstract

The invention relates to a three-phase common box bus conductor support device. The three-phase common box bus conductor support device includes a liftable support base. A support column is fixedly installed on the liftable support base. The support column is connected with support arms on both sides and a The middle support arm and the support arms on both sides are arranged symmetrically. The top of each side support arm and the top of the middle support arm respectively have support ends for supporting the bus conductor. The middle part of the side support arm is hinged with a connecting rod, and the other end of the connecting rod is connected In the support column, some side support arms, connecting rods and support columns together form a triangle. At least one of the connection points between the side support arms and the support column and the connection points between the connecting rod and the support column can be displaced along the support column. , so that the top end of the side support arm can be retracted and expanded relative to the support column; the size of the extraction opening does not need to be set larger to meet the assembly needs, and it saves manpower and facilitates assembly operations.

Description

A three-phase common box bus conductor support device

Technical field

The invention relates to gas-insulated metal-enclosed switchgear, in particular to the technical field of fully enclosed installation of busbars, and specifically to a three-phase common box busbar conductor support device.

Background technique

At present, the busbar adopts a common box layout. The structure of the three-phase common box busbar is shown in Figure 1. The busbar includes a busbar cylinder 01 and a three-phase common box busbar conductor. The three-phase common box busbar conductor is a three-phase conductive rod 02. The busbar cylinder Both ends of the body are connected to support insulators 03 respectively. The busbar barrel between two adjacent support insulators 03 has a two-section structure. The busbar barrel includes a split first barrel section and a second barrel section. The two barrels The sections are connected through flanges. The two support insulators 03 are respectively the first support insulator and the second support insulator connected to the first cylinder section and the second cylinder section. The support insulator 03 is provided with embedded conductors, and each embedded conductor is There are contact bases 04 connected to the conductors respectively, and the contact bases 04 are conductively connected to the conductive rods. The two ends of the conductive rods 02 are respectively connected to the contact bases 04 on the supporting insulators 03 at both ends of the busbar cylinder 01. The conductive rods 02 are longer than the busbar cylinder. For any cylinder section of 01, there are three pull-outs 05 distributed along the circumferential direction at the end of the busbar cylinder 01 close to the two supporting insulators 03; when assembling the busbar, first remove the first cylinder section is connected to the first support insulator. When the conductive rod is assembled with the first cylinder section and the first support insulator, the middle part of the conductive rod can be hoisted to slightly adjust the center of gravity position. The conductive rod extends into the first cylinder section. When connecting to the first contact seat on the first support insulator, manual assembly can be performed at the three small openings at the end of the busbar barrel. The conductive rod is assembled with the first barrel section and the first support insulator. Finally, as shown in Figures 2 and 3, the support plate 06 can be used to support the three-phase conductive rod 02 outside the first barrel section, that is, by fixing the support plate 06 to the end flange of the first barrel section Support the part of the three-phase conductive rod 02 exposed on the first barrel section. When the distance between the first barrel section and the second barrel section is about 50mm, the support plate 06 can be removed to complete the docking of the two barrel sections. , in the same way, when the conductive rod is connected to the second contact seat on the second support insulator, manual assembly is performed at three small pull-out openings at the end of the busbar barrel; only one support plate is required during assembly. In the overall assembly, when assembling this kind of common box busbar structure, the assembly method is mature and the assembly tooling is simple.

However, although the assembly method of the above-mentioned common box busbar structure is mature and simple, as for the structure itself, since the busbar barrel is divided into two independent sections, the butt ends of the two barrel sections need to be provided with butt flanges, and each barrel section needs to be provided with a butt flange. The other end needs to be equipped with three extraction ports respectively, and the entire busbar barrel needs to be provided with six extraction ports, and each extraction port needs to be equipped with a sealing cover, which makes the busbar structure complex and the production cost of busbar products is high. In practical applications, because the common box busbar is used in large quantities, how to reduce costs is very important for corporate market competition and operating profits.

Due to the high cost of segmented busbars, there is a design idea that makes the busbar barrel between two adjacent support insulators into an integrated structure. Although this busbar structure eliminates the need for two butt flanges And the setting of three pull-outs at one end of the busbar barrel, however, the other end of the busbar barrel still needs to be provided with three pull-outs to facilitate assembly; and for the setting of the pull-outs, it is not only necessary to install the pullouts on the busbar barrel When opening a hole, it is also necessary to weld an adapter nipple on the edge of the hole after the hole is opened, so that the adapter nipple can be used to form a flat end face. It is also necessary to install a sealing cover at the extraction opening to seal the extraction opening. The overall Three extraction openings are required and three sealing covers are required. The manufacturing cost of busbar products with such a structure is still relatively high.

Therefore, there is finally a design idea that only provides a pull-out at one end of the busbar barrel without increasing the size of the pull-out. The busbar structure is shown in Figure 4. There is only one busbar between two adjacent supporting insulators. Cylinder 001, one end of the conductive rod 002 is connected to the first contact 041 on the first support insulator 031, and the other end is connected to the second contact 042 on the second support insulator 032. The busbar cylinder 001 is an integrated structure. The busbar barrel 001 is only provided with a pull-out opening 005 at one end; the busbar of this structure can greatly reduce the manufacturing cost of the common box busbar.

However, for the busbar of this structure, when the second contact seat near the pull-out position is connected to the three-phase bus conductor, there is currently no good assembly method. If it is purely installed manually, two people need to put their arms into the pull-out opening to connect the three-phase busbar conductors. It is supported by a conductive rod, and due to the limited assembly position of the three-phase conductive rod, as well as the long and heavy weight of the conductive rod (the length of the conductive rod is close to 6m), the assembly is very inconvenient. Therefore, how to facilitate the assembly of the busbar of the single-pull-out integrated busbar barrel while ensuring the lowest cost is a key issue currently encountered.

Contents of the invention

The purpose of the present invention is to provide a three-phase common box busbar conductor support device to solve the problem that the busbars of the single-pull-out integrated busbar barrel are difficult to assemble.

The technical solution of the three-phase common box busbar conductor support device of the present invention is:

A three-phase common box bus conductor support device includes a liftable support base. A support column is fixedly installed on the liftable support base. The support column is connected to two side support arms and a middle support arm. The two side support arms are symmetrically arranged. The top of the side support arm and the top of the middle support arm respectively have support ends for supporting the bus conductor. The middle part of the side support arm is hinged with a connecting rod. The other end of the connecting rod is connected to the support column. Some of the side support arms, connecting rods and The support columns together form a triangle. At least one of the connection points between the side support arm and the support column and the connection point between the connecting rod and the support column can be displaced along the support column, so that the top of the side support arm can be relative to the support column. Adduction and expansion.

Beneficial effects: The three-phase common box bus conductor support device has a lifting support base and support arms on both sides that can be expanded and retracted. Therefore, when in use, the support arms on both sides can be retracted first to reduce the size of the three-phase common box bus. The lateral size of the support part of the conductor support device, with the support arms on both sides retracted, and the lifting function of the liftable support base, allows the support end used to support the busbar conductor to extend from the pull-out into the busbar barrel, and then pass through Extend the support arms on both sides to support the busbar conductor, thereby realizing the docking of the contact base near the pullout of the single-pull-out integrated busbar barrel and the busbar conductor. When it is necessary to install the three-phase common box busbar conductor support device When moving out, first retract the support arms on both sides, and cooperate with the lowering function of the liftable support base, so that the support end used to support the busbar conductor exits from the extraction opening to the outside of the busbar cylinder, so that the side can be retracted and expanded. The cooperative arrangement of the support arm and the liftable support seat can realize that the size of the extraction opening does not need to be set larger to meet the assembly needs, save manpower, and facilitate assembly operations.

Further, among the connection points between the side support arm and the support column and the connection points between the connecting rod and the support column, the connection points between the side support arm and the support column can be displaced along the support column.

Beneficial effects: Since the side support arm is the connection between the bottom end and the support column, the connection point between the side support arm and the support column is lower than the connection point between the connecting rod and the support column, so that the three-phase common box busbar When the conductor support device extends into the busbar cylinder from the opening of the busbar cylinder, it is convenient to leave the connection point between the side support arm and the support column outside the busbar cylinder, thereby making it convenient for personnel to operate outside the busbar cylinder while the opposite side support arm is connected to the busbar cylinder. The connection points of the supporting columns are displaced.

Further, the support column is equipped with a lower movable seat, and the lower ends of the support arms on each side are hinged on the lower movable seat. The support column is a stud, and a rotating seat is screwed on the support column. The rotating seat is located on the lower side of the lower movable seat. The rotating seat and the lower movable seat rotate relative to each other circumferentially and are relatively fixed in the axial direction. When the rotating seat rotates around the support column, it can drive the lower movable seat to move up and down along the support column, thereby changing the connection point between the side support arm and the support column. The upper and lower position of the bit.

Beneficial effects: By configuring the support column as a stud and cooperating with the rotation base and the lower movable seat that are assembled together with relative rotation in the circumferential direction and relatively fixed in the axial direction, the connection point between the side support arm and the support column can be adjusted when needed. When displacement occurs, it can be realized by turning the rotating base. It is easy to operate and can realize stepless adjustment, which is conducive to the inward or outward expansion of the side support arm to the position, which is conducive to reliable support of the bus conductor; at the same time, the side support arm and the support After the position adjustment of the connection point of the column is completed, the up and down position can be automatically maintained by matching the external thread on the support column with the internal thread on the rotating base, and the structure is simple.

Further, the rotating seat is inserted into the center hole of the lower movable seat, and the outer circumferential surface of the part of the rotating seat inserted into the lower movable seat is provided with a ring groove, and the lower movable seat is provided with a threaded hole corresponding to the position of the ring groove. Screw the rotating seat limit bolt into the threaded hole and extend it into the annular groove, so that the rotating seat and the lower movable seat can rotate relative to each other in the circumferential direction and be assembled relatively fixedly in the axial direction.

Beneficial effects: By combining the rotating seat and the lower movable seat in the same set with the setting of the rotating seat limit bolts, the rotating seat and the lower movable seat can be assembled together in a circumferential relative rotation and an axial relative fixation. The structure is simple and easy to install.

Further, the liftable support base is provided with a fixed connecting plate, the fixed connecting plate is provided with a through hole, the lower end of the supporting column is provided with a stage, the stage of the supporting column is provided with an external thread, and the lower end of the supporting column is penetrated through the A hole is made so that the step surface of the stage is against the fixed connection plate, and a fixing nut is screwed on the lower end of the support column where it passes through the hole to fix the support column on the fixed connection plate.

Beneficial effects: The support column is fixed by arranging a fixed connecting plate and a fixed nut, so that the support column is detachable and easy to replace. At the same time, the structure is simple and the operation is convenient.

Further, the middle support arm is detachably connected to the top of the support column.

Beneficial effects: Through the detachable middle support arm, the height of the three-phase common box busbar conductor support device can be reduced by removing the middle support arm, and it is convenient to move the three-phase common box busbar conductor support device to just below the busbar barrel. , corresponding to the top and bottom of the pull-out; at the same time, because the height of the liftable support seat is reduced, the busbar cylinder does not need to be set very high, which is beneficial to improving safety. Moreover, the lower height of the busbar cylinder is also beneficial to personnel Carry out assembly work.

Further, the middle support arm is connected to the top of the support column in a height-adjustable manner.

Beneficial effects: The height of the middle support arm is adjustable, so that the height of the support end at the top of the middle support arm for supporting the busbar conductor can be adjusted to adapt to the phase spacing of different types of common box busbars.

Further, the top of the support column is provided with a blind hole for the middle support arm to be inserted, and the bottom end surface of the middle support arm is provided with an adjustment threaded hole, and the middle support arm adjustment bolt is screwed in the adjustment threaded hole.

Beneficial effects: The length of the middle support arm can be adjusted by twisting the middle support arm positioning bolt, thereby adjusting the height of the middle support arm after it is inserted into the blind hole. The structure is simple and easy to adjust.

Further, the top end of the side support arm is connected to a support arc plate, the support arc plate constitutes the support end, and the position of the support arc plate is adjustable in the radial direction of the support column.

Beneficial effects: By setting the support arc plate, an arc-shaped groove can be formed to support the bus conductor, and the support is reliable. Moreover, the position-adjustable support can meet the assembly needs of the phase spacing of different types of common box bus bars.

Further, the top of the side support arm has a mounting surface for fixedly connecting the support arc plate. A long hole is provided on the mounting surface, and a bolt hole is provided on the support arc plate. The support arc plate passes through the bolt hole and the long hole with a bolt. Nut connections enable fastening to the side support arms.

Beneficial effects: By setting the mounting surface to connect the supporting arc plate, it is conducive to forming a stable connection structure, and the connection position is adjustable through the long hole, the structure is simple, and the adjustment is convenient.

Description of the drawings

Figure 1 is a schematic structural diagram of a segmented busbar in the prior art;

Figure 2 is a schematic diagram of the segmented busbar installation process in Figure 1;

Figure 3 is view A-A of Figure 2;

Figure 4 is a schematic diagram of the busbar structure of the integrated busbar cylinder in the prior art;

Figure 5 is a schematic diagram of the state before the conductive rod and the first contact base are docked in Embodiment 1 of the three-phase common box busbar conductor support device of the present invention;

Figure 6 is a schematic diagram of the state before the busbar cylinder and the first supporting insulator are docked in Embodiment 1 of the three-phase common box busbar conductor support device of the present invention;

Figure 7 is a schematic diagram of the placement state of the movable support seat in the conductive rod in Figure 6;

Figure 8 is a schematic diagram of the state when the busbar cylinder and the first supporting insulator are connected in Embodiment 1 of the three-phase common box busbar conductor support device of the present invention;

Figure 9 is a schematic structural diagram of Embodiment 1 of a three-phase common box busbar conductor support device according to the present invention;

Figure 10 is a schematic diagram of the state when the middle support arm in Figure 9 is not inserted into the socket of the support column;

Figure 11 is a schematic diagram of the assembly relationship between the rotating seat, the lower movable seat and the supporting column in Figure 10;

Figure 12 is a schematic diagram of the state in which the three-phase common-box bus conductor support device extends into the bus barrel after removing the middle support arm in Embodiment 1 of the three-phase common box bus conductor support device of the present invention;

Figure 13 is a schematic diagram of the middle support arm in the three-phase common box bus conductor support device in Embodiment 1 of the present invention being reinstalled into the three-phase common box bus conductor support device;

Figure 14 is a schematic diagram of the state in which the three-phase common-box bus conductor support device supports three-phase conductive rods in Embodiment 1 of the three-phase common box bus conductor support device of the present invention;

Figure 15 is a schematic diagram of the second supporting insulator butting with the busbar cylinder and the second contact base with the conductive rod in Embodiment 1 of the three-phase common box busbar conductor support device of the present invention;

Figure 16 is a schematic diagram of the state after the second support insulator and the busbar barrel are connected, and the second contact base and the conductive rod are connected in Embodiment 1 of the three-phase common box busbar conductor support device of the present invention;

Figure 17 is a schematic diagram of the state after removing the insulator assembly support base and the three-phase common box bus conductor support device in Embodiment 1 of the three-phase common box bus conductor support device of the present invention.

In the picture: 01. Busbar barrel; 02. Conductive rod; 03. Support insulator; 04. Contact base; 05. Pull-out; 06. Support plate;

001. Busbar cylinder; 002. Conductive rod; 031. First support insulator; 032. Second support insulator; 041. First contact seat; 042. Second contact seat; 005. Pulling hole;

1. Insulator assembly support seat; 2. Conductive rod outer support seat; 3. Busbar barrel support seat; 4. Conductive rod inner movable support seat;

5. Three-phase common box busbar conductor support device; 51. Liftable support seat; 52. Fixed connecting plate; 53. Support column; 54. Rotating seat; 55. Lower movable seat; 56. Rotating seat handle; 57. Supporting column Limit plate; 58. Rotating seat limit bolt; 59. Support column tightening nut; 510. Side support arm; 511. Connecting rod; 512. Upper fixed seat; 513. Middle support arm; 514. Middle support arm adjustment bolt ; 515. The supporting plate on the side of the inner supporting seat; 516. The supporting plate on the middle of the inner supporting seat.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention. That is, the described embodiments are only some embodiments of the present invention, rather than all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the invention provided in the appended drawings is not intended to limit the scope of the claimed invention, but rather to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without any creative work fall within the scope of protection of the present invention.

It should be noted that the terms “first” and “second” and other relational terms that may appear in the specific embodiments of the present invention are only used to distinguish one entity or operation from another entity or operation. Any such actual relationship or sequence between these entities or operations is not necessarily required or implied. Furthermore, the terms "comprises," "comprises," or any other variations thereof, which may appear, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also includes no Other elements expressly listed or inherent in such process, method, article or equipment. Without further limitation, an element defined by the possible expression "comprises a..." does not preclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

In the description of the present invention, unless otherwise explicitly stipulated and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

In the description of the present invention, unless otherwise expressly stipulated and limited, the term "is provided with" that may appear should be understood in a broad sense. For example, the object of "is provided with" can be a part of the ontology, or it can be separate from the ontology. Arranged and connected to the body, the connection may be a detachable connection or a non-detachable connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

The present invention will be described in further detail below with reference to examples.

Embodiment 1 of the three-phase common box bus conductor support device of the present invention:

In order to more clearly describe the solution of the three-phase common box bus conductor support device of the present invention, the structure and use of the three-phase common box bus conductor support device will be described below in conjunction with the overall assembly process of the three-phase common box bus.

In this embodiment, the three-phase common box bus conductor is a three-phase conductive rod 002. As shown in Figures 5, 6, and 7, the first support insulator 031 and the first contact base 041 are assembled through the insulator assembly support base 1. Specifically, the insulator assembly support base 1 has a structure that can be used in a horizontal state and a vertical state. The flip connection plate for state switching, and the insulator assembly support base 1 is provided with a lifting mechanism that drives the flip connection plate up and down. During assembly, adjust the flip connection plate to a horizontal state, and fix the first support insulator 031 to the insulator assembly support base 1 On the flip connection plate, the fixing hole on the flip connection plate is fixedly connected to the embedded conductor on the first support insulator 031, so that the first support insulator 031 and the flip connection plate are fixed.

Connect the first contact base 041 to the first support insulator 031. After the connection is completed, flip the first support insulator 031 to the vertical state, and maintain the first support insulator 031 in the vertical state through the limiting mechanism.

The three-phase conductive rod 002 is supported outside the busbar cylinder 001 by the conductive rod outer support seats 2. There are two conductive rod outer support seats 2. The conductive rod outer support seats 2 are movable lifting vehicles. Place the three-phase conductive rods 002 on the three supporting plates of the outer conductive rod outer support base 2 respectively, and place the three-phase conductive rods 002 horizontally on the conductive rod outer support base 2.

Push the insulator assembly support base 1 closer to the outer conductive rod outer support base 2, adjust the height of the lifting frame 12 of the insulator assembly support base 1 and the height of the outer conductive rod outer support base 2 to ensure that the three-phase conductive rod 002 and the three-phase The first contact seats 041 are respectively in concentric positions, and the insulator assembly support base 1 is pushed to connect the conductive rod 002 and the first contact seat 041.

The busbar cylinder 001 is supported by the busbar cylinder support seats 3. There are two busbar cylinder support seats 3. The busbar cylinder support seats 3 are movable support trolleys. Place the busbar cylinder 001 horizontally on the V-shaped support surface of the busbar cylinder support base 3, with the pull-out 005 on the busbar cylinder 001 facing downwards.

Before the conductive rod 002 is extended into the busbar cylinder 001, the conductive rod moving support base 4 is placed in the busbar cylinder 001, and the moving supporting base 4 in the conductive rod is removed from the unplugged opening 005 of the busbar cylinder 001. One side of the barrel mouth is put in, and the movable support seat 4 in the conductive rod supports the conductive rod 002 during its movement inside the busbar barrel 001. The movable support seat 4 in the conductive rod is a mobile car, and its size can meet the requirements of moving from the busbar Put it in and take it out from the cylinder 001. The mobile trolley is in rolling contact with the inner wall surface of the busbar barrel 001 through the internal moving support rollers provided thereon.

Extend the conductive rod 002 into the inside of the cylinder, place the three-phase conductive rod 002 on the movable support 4 inside the conductive rod, and support the end of the conductive rod 002 away from the first contact base 041 on the movable support 4 inside the conductive rod. 4; lower the outer support base 2 of the conductive rod to the lowest position and evacuate in sequence; connect the busbar barrel 001 with the first support insulator 031. The movable support base 4 in the conductive rod can move along with the conductive rod 002 during the movement process, which is beneficial to maintaining good support and can reduce damage to the conductor.

As shown in Figures 8, 9, 10, and 11, the three-phase common box busbar conductor support device 5 is used to form support for one end of the three-phase conductive rod 002 in the busbar cylinder 001 close to the extraction opening 005. The phase common box bus conductor support device 5 includes a liftable support base 51 and a support column 53 fixedly installed on the liftable support base 51. The liftable support base 51 includes a double fork arm platform and a support column disposed below the double fork arm platform. Scissor-type lifting mechanism, the scissor-type lifting mechanism is lifted and lowered by hydraulic drive, and the legs of the scissor-type lifting mechanism are equipped with rollers to facilitate the movement of the three-phase common box bus conductor support device 5.

A fixed connection plate 52 is provided between the two forks of the liftable support base 51. The lower end of the support column 53 has a step surface. The support column 53 passes through the fixed connection plate 52 and presses the step surface against the fixed connection plate 52. One end passing through the fixed connection plate 52 is tightened by the support column tightening nut 59. The support column tightening nut 59 constitutes a fixed nut to fix the support column 53 to the fixed connection plate 52. At the same time, the support column 53 is provided with a fixed connection In the slot on the upper side of the plate 52, a support column limiting plate 57 is fixed on the upper surface of the fixed connecting plate 52 close to the supporting column 53. By clamping the end of the supporting column limiting plate 57 into the slot, To prevent the support column 53 from rotating when the support column tightening nut 59 becomes loose.

The support column 53 is provided with two side support arms 510 and a middle support arm 513. The upper ends of the side support arms 510 are bolted and fixed with the inner supporting seat edge support plate 515. The inner supporting seat edge supporting plate 515 forms a support arc. The upper end of the side support arm 510 is provided with a bent section. The upper surface of the bent section constitutes a mounting surface for fixing the inner support plate 515. The bent section of the side support arm 510 is provided with a long strip. hole, by adjusting the assembly position of the connecting bolts on the inner supporting seat side supporting plate 515 in the long hole, the center distance of the two inner supporting seat side supporting plates 515 can be adjusted to adapt to different types of phase spacing common boxes Assembly requirements for busbar conductive rod 002.

The lower end of the side support arm 510 is movably mounted on the support column 53, and the upper end can be expanded or retracted relative to the support column 53. The middle part of the side support arm 510 is hinged to one end of the connecting rod 511, and the other end of the connecting rod 511 is hingedly connected to the support. At the upper end of the column 53, the connecting rod 511, the support arms 510 on both sides and the column form an umbrella-shaped structure, which can be opened and closed. The connecting rod 511 is used to control the opening and closing angle of the side support arms 510. The upper end of the support column 53 is provided with an upper fixed seat 512. The upper fixed seat 512 and the support column 53 are tightly matched. The sides of the upper fixed seat 512 are connected to the connecting rod 511. The position of the upper fixed seat 512 forms the connecting rod and the supporting column. The opening and closing angles of the side support arms 510 can be controlled by adjusting the relative positions of the upper fixed base 512 and the support column 53.

The lower end of the support column 53 is movable with a lower movable seat 55. The lower end of the side support arm 510 is hinged on the lower movable seat 55. The lower end of the side support arm 510 is movably installed on the support column 53 through the lower movable seat 55. The lower movable seat 55 The position constitutes the connection point between the side support arm and the support column. The support column 53 is a stud, and the support column 53 is also provided with a holding structure that keeps the side support arm 510 in the retracted or expanded state. The holding structure is a rotating base 54 that is threaded on the supporting column 53. The rotating base 54 is connected to the supporting column 53. The support column 53 is matched through a trapezoidal thread. The rotating seat 54 is above the lower movable seat 55 and supports the lower movable seat 55. The rotating seat 54 is a stepped shaft structure. The center hole of the lower movable seat 55 is a stepped hole. The rotating seat 54 is The small diameter section of the step shaft is inserted into the large diameter section of the center hole of the lower movable seat 55, and the outer circumferential surface of the part of the rotating seat 54 inserted into the lower movable seat 55 is provided with an annular groove, and the rotating seat 54 is provided with an annular groove position. In the corresponding threaded hole, the rotating seat limit bolt 58 is screwed into the threaded hole and extends into the annular groove to connect the rotating seat 54 and the lower movable seat 55, and ensure that the rotating seat 54 rotates relative to the lower movable seat 55. And can drive the lower movable seat 55 to move up and down, thereby driving the side support arm 510 to expand and retract. A threaded hole is provided on the side of the rotating base 54, and a rotating base handle 56 is connected to the threaded hole to facilitate the rotation of the rotating base 54. The lower end of the side support arm 510 is hinged to the lower movable seat 55 so that the lower movable seat 55 is positioned at a lower height, so that after the three-phase common box busbar conductor support device 5 is extended into the busbar cylinder 001, the lower movable seat 55 Still remaining outside the busbar cylinder 001, the movable seat 55 can be moved outside the cylinder to realize the expansion and contraction of the side support arm 510, which is convenient for personnel to operate.

The upper top of the middle support arm 513 is provided with an inner support base and a middle phase support plate 516. The inner support base middle phase support plate 516 is bolted to the middle support arm 513 and is used to support the middle phase conductor of the common box busbar. The top of the support column 53 is provided with a hexagonal blind hole, and the bottom surface of the middle support arm 513 is provided with a threaded blind hole. The middle support arm positioning bolt 514 is connected to the threaded blind hole, and the bottom of the middle support arm 513 is inserted into the top of the support column 53 Among the hexagonal blind holes, the arrangement of the hexagonal blind holes can form a rotation-locking fit for the middle support arm 513 to ensure that the support grooves formed by the support arc plates are oriented in the same direction. By adjusting the depth of the middle support arm adjustment bolt 514 screwed into the middle phase support arm, the height of the middle phase support plate 516 of the inner support seat can be adjusted to adapt to the assembly requirements of different types of phase spacing common box busbar conductive rods.

As shown in Figures 12, 13, and 14, according to the center distance of the three-phase conductors of the three-phase common box busbar, adjust the two inner support arms 510 of the two side support arms 510 of the three-phase common box busbar conductor support device 5 in the normal open state. The center distance of the phase support plate 515 on the side of the support seat is adjusted, and the height of the phase support plate 516 in the inner support seat is adjusted; the three-phase common box busbar conductor support device 5 is lowered to the lowest position, and the three-phase common box busbar conductor support device is adjusted 5 to the minimum folding angle of the side support arm 510; remove the middle support arm 513; move the three-phase common box bus conductor support device 5 to the bottom of the bus barrel 001, and make it face the extraction opening 005; raise the three phases The height of the common box bus conductor support device 5 is such that the inner support plate 515 of the three-phase common box bus conductor support device 5 extends from the opening 005 at the bottom of the bus barrel 001; from the mouth of the bus barrel 001 Install the middle support arm 513 at On the side support plate 515 of the support seat and the middle phase support plate 516 of the inner support seat, adjust the height of the three-phase common box busbar conductor support device 5 to support the three-phase conductive rod 002 and keep the conductive rod 002 away from the first contact One end of the seat 041 is supported on the three-phase common box bus conductor support device 5.

After the support of the three-phase conductive rod 002 is stable, take out the movable supporting base 4 in the conductive rod from the side opening of the busbar cylinder 001 close to the extraction opening 005.

As shown in Figure 15, Figure 16, and Figure 17, the second contact base 042 is assembled to the second support insulator 032. After the assembly is completed, the second support insulator 032 is lifted to connect the conductive rod 002 with the second contact base 042. The docking and the docking of the second support insulator 032 and the busbar barrel 001; after the docking is completed, first lower a certain height of the three-phase common box bus conductor support device 5, and then support the side support of the three-phase common box bus conductor support device 5 The arms 510 are closed to the minimum angle, and finally the height of the three-phase common box busbar conductor support device 5 is reduced to the minimum, and the pullout 005 is withdrawn from the bottom of the busbar barrel 001; the pullout 005 is sealed. At this point, the assembly of the three-phase common box busbar is completed.

By extending the three-phase common box bus conductor support device 5 from the pull-out opening 005 into the bus barrel 001 from bottom to top, the lifting operation is simple, and the ground support is used, which is beneficial to stability and reliability; it can be expanded and retracted The support arms 510 on both sides support the conductive rod 002 to facilitate the insertion and withdrawal operations of the three-phase common box bus conductor support device 5 from the extraction port 005. The size of the extraction port 005 does not need to be set larger to meet the assembly needs.

In the above embodiment, the middle support arm is detachably connected to the top of the support column. The middle support arm is first removed. After the support arms on both sides enter the busbar barrel, the middle support arm is installed from the mouth of the busbar barrel. Others In the embodiment, the middle support arm is not detachable, and the middle support arm and the support column are welded and fixed. By setting the height of the busbar barrel higher, the three-phase common box busbar conductor support device can be pushed under the extraction opening.

In the above embodiment, the rotating seat of the three-phase common box busbar conductor support device constitutes a holding structure to maintain the position of the lower movable seat. In other embodiments, multiple limit holes can also be provided on the supporting column along the axial direction. Maintain the position of the lower movable seat by inserting a limit pin into the limit hole.

In the above embodiment, an annular groove is provided on the outer circumferential surface of the rotating seat, and a threaded hole is provided on the lower movable seat. The threaded hole corresponds to the position of the annular groove, and the limit bolt is screwed into the threaded hole and extends into the annular groove, so as to The rotating seat and the lower movable seat can rotate relative to each other in the circumferential direction and be assembled together in a relatively fixed axial direction. In other embodiments, a limit ring can also be provided so that the limit ring and the lower movable seat can be detachably and fixedly connected, and in A rotational gap is formed between the limiting ring and the lower movable seat. The rotational gap accommodates the everted edge of the rotating seat to satisfy the rotation of the rotating seat. At the same time, the limiting ring and the lower movable seat jointly form an axial limit on the rotating seat.

In the above embodiment, the rotating seat and the lower movable seat in the same set are combined with the setting of the rotating seat limit bolts, so that the connection point between the side support arm and the supporting column can be displaced along the supporting column, while the upper fixed seat and the supporting column are fixed. , the connection point between the connecting rod and the supporting column cannot be displaced. In other embodiments, a rotating seat and an upper movable seat can also be provided at the upper end of the supporting column, and the rotating seat and the upper movable seat in the same set are matched with the rotating seat limiting bolts. Set up to realize that the connection point between the connecting rod and the support column can be displaced along the support column, and a lower fixed seat fixed to the support column is provided at the lower end of the support column, and the lower fixed seat is connected to the lower end of the side support arm so that the side support The connection point between the arm and the support column cannot be displaced along the support column. In other embodiments, the same set of rotating seats, movable seats and limit bolts that are set with each other can also be provided at the upper and lower ends of the support column, so that the side The connection point between the support arm and the support column and the connection point between the connecting rod and the support column can be displaced along the support column.

In the above embodiment, the support arc plate constitutes a support end for supporting the busbar conductor. In other embodiments, the top end of each side support arm and the top end of the middle support arm can also be used to directly support the busbar conductor.

In the above embodiment, a fixing nut is screwed on the lower end of the support column where it passes through the fixed connection plate to fix the support column to the fixed connection plate. In other embodiments, the support column can also be directly welded and fixed to the fixed connection plate, or You can directly fix the support column on the liftable support base without setting a fixed connecting plate.

In the above embodiment, the length of the middle support arm is adjusted through the middle support arm adjustment bolt to achieve height adjustment after being inserted into the blind hole on the top of the support column. In other embodiments, the middle support arm may also be a stud that is directly threaded. Installed on the top of the support column, the height is adjusted by screwing the middle support arm, and a threaded hole is provided on the hole wall of the threaded hole on the support column for the top screw to pass through to fix the middle support arm.

In the above embodiment, the position of the support arc plate in the radial direction of the support column is adjustable by arranging long holes. In other embodiments, a slider can also be provided on the bottom surface of the support arc plate, and a chute is provided at the top of the side support arm. The position of the support arc plate is adjustable by sliding the support arc plate in the chute, and a threaded hole is provided on the chute for the top screw to pass through and fix the support arc plate.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still The technical solutions described in the foregoing embodiments may be modified without any creative effort, or some of the technical features may be equivalently replaced. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a three-phase is case busbar conductor strutting arrangement altogether, a serial communication port, including liftable supporting seat, fixed mounting has the supporting column on the liftable supporting seat, be connected with both sides support arm and a middle part support arm on the supporting column, both sides support arm symmetrical arrangement, the top of each side support arm and the top of middle part support arm have the supporting terminal that is used for supporting the busbar conductor respectively, the middle part of side support arm articulates there is the connecting rod, the other end of connecting rod is connected in the supporting column, part side support arm, in connecting point of side support arm and supporting column and connecting rod and the supporting column's the tie point, at least one can take place the displacement along the supporting column, and make the top of side support arm can be received and the abducted relatively supporting column, the cover is equipped with down movable seat on the supporting column, the lower extreme of each side support arm all articulates on down movable seat, the supporting column is the double-screw, the rotating seat is equipped with on the supporting column, the rotating seat is equipped with down in the movable seat in the relative rotation in circumference and axial relative fixed ground, when rotating seat is rotatory around the supporting column, can drive down movable seat along the supporting column and reciprocate, and then change the side and the upper and lower position of supporting column and the tie point position of supporting column and the annular groove insert down relative to the annular groove, the relative position of inserting is realized in the relative rotation seat down in the lower position of the movable seat, and the annular groove is fixed position is realized.

2. The three-phase common-box bus conductor supporting device according to claim 1, wherein the connecting points of the side supporting arms and the supporting columns and the connecting points of the connecting rods and the supporting columns can be displaced along the supporting columns.

3. The three-phase common-box bus conductor supporting device according to claim 2, wherein the rotating seat is located at the lower side of the lower movable seat.

4. A three-phase common-box bus conductor supporting device according to any one of claims 1 to 3, wherein a fixed connecting plate is arranged on the liftable supporting seat, a through hole is arranged on the fixed connecting plate, a stage is arranged at the lower end of the supporting upright post, an external thread is arranged on the stage of the supporting upright post, the lower end of the supporting upright post penetrates out of the through hole and enables the step surface of the step section to prop against the fixed connecting plate, and a fixing nut is screwed on the part of the lower end of the supporting upright post penetrating out of the through hole so as to fix the supporting upright post on the fixed connecting plate.

5. A three-phase common box bus conductor support device according to any one of claims 1 to 3 wherein the central support arm is detachably connected to the top end of the support post.

6. The three-phase common-box bus conductor support device according to claim 5, wherein the middle support arm is height-adjustably connected to the top end of the support column.

7. The three-phase common-box bus conductor supporting device according to claim 6, wherein a blind hole for inserting a middle supporting arm is formed in the top of the supporting upright post, an adjusting threaded hole is formed in the bottom end face of the middle supporting arm, and a middle supporting arm positioning bolt is screwed in the adjusting threaded hole.

8. A three-phase common-box bus conductor supporting device according to any one of claims 1 to 3, characterized in that the top end of the side supporting arm is connected with a supporting arc plate, the supporting arc plate forms the supporting end, and the position of the supporting arc plate in the radial direction of the supporting upright post is adjustable.

9. The three-phase common-box bus conductor supporting device according to claim 8, wherein the top of the side supporting arm is provided with a mounting surface for fixedly connecting with a supporting arc plate, a long hole is formed in the mounting surface, a bolt through hole is formed in the supporting arc plate, and the supporting arc plate is connected with the long hole and a nut through the bolt through hole to realize the fixation on the side supporting arm.