Hydraulic device for crimping three-phase common box bus support insulator

Abstract

The invention relates to the technical field of bus support installation, in particular to a hydraulic device for crimping a three-phase common box bus support insulator. The device comprises an extrusion mechanism, an insulation supporting piece is arranged in the extrusion mechanism, the extrusion mechanism is arranged on three conductors, a plurality of installation pieces corresponding to the conductors in position are arranged on the two sides of the insulation supporting piece, and meanwhile a plurality of wedge-shaped blocks are arranged on the insulation supporting piece. According to the invention, the connection relation between the central insert block and the conductor is fixed in a hydraulic crimping manner, so that waste residues and waste gas generated by welding are avoided, the waste residues generated during welding are prevented from polluting the insulating support member, the dust-free state of the insulating support member in the later period is ensured, subsequent installation is facilitated, and the service life of the insulating support member is prolonged. And meanwhile, an extrusion mode is adopted between the central insert block and the conductor, so that the trouble of arranging a welding hole site is avoided, the workload of installation between the central insert block and the conductor is reduced, and the installation between the central insert block and the conductor is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of busbar support installation, in particular to a hydraulic device for crimping three-phase common-box busbar support insulators. Background Art

[0002] The three-phase busbar is a rigid gas-insulated transmission line. Its main structure consists of a shell, three-phase conductors 4 and their insulation supports, insulating gas, etc. The three-phase conductors 4 are installed in the same shell. The three-phase busbar has the advantages of small product footprint, simple operation and maintenance, and high reliability.

[0003] The supporting insulators in the existing three-phase common box busbars are fixed together with the three-phase conductors 4 by welding, so that the three-phase conductors 4 and the insulating parts are assembled and fixed. However, when the welding fixing method is adopted, the welding point is close to the epoxy resin body of the supporting insulator, and the high heat generated during welding is easily transferred to the epoxy resin body, which is easy to cause the body to be damaged by heat. At the same time, some of the waste slag and waste gas generated during welding will be hidden between the supporting insulator insert and the conductor, or splash onto the surface of the epoxy resin body, causing contamination of the insulating parts, which is not conducive to dust-free control during the assembly of the GIL equipment. At the same time, when the supporting insulator is welded and fixed, in order to ensure the firmness and reliability after welding, three welding holes need to be opened on one side of a single center insert of the supporting insulator. In this way, a total of 18 welding points are required to fix the three-phase conductor of a single supporting insulator, which has a large workload and low efficiency, and is not conducive to large-scale production. Summary of the invention

[0004] The object of the present invention is to provide a hydraulic device for crimping three-phase busbar supporting insulators in a common box to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention proposes a hydraulic device for crimping three-phase busbar support insulators, comprising a squeezing mechanism, an insulating support is arranged inside the squeezing mechanism, the squeezing mechanism is arranged on three conductors, the conductors support the squeezing mechanism, the insulating support is arranged on the three conductors, a plurality of mounting members corresponding to the positions of the conductors are arranged on both sides of the insulating support, and a plurality of wedge blocks are arranged on the insulating support, the squeezing mechanism drives the mounting member to approach the insulating support member so that the insulating support member presses the wedge block into the interior of the insulating support member, and after the mounting member is pressed into the wedge block, the squeezing mechanism drives the mounting member away from the insulating support member and adjusts the installation state of the mounting member, and then the squeezing mechanism drives the mounting member to approach the insulating support again so that the mounting member presses the insulating support member into the wedge block and the raised edge is pressed in the direction close to the conductor.

[0006] As a further improvement of the present technical solution, the extrusion mechanism includes a cylinder fixing plate, a crimping fixing plate and a locking plate which are arranged in sequence. The cylinder fixing plate, the crimping fixing plate and the locking plate are all T-shaped, and the lower sides of the top ends and the bottom thereof are provided with wire placement grooves for placing conductors. The conductors are arranged in the corresponding wire placement grooves on the cylinder fixing plate, the crimping fixing plate and the locking plate.

[0007] As a further improvement of the technical solution, pull rods are symmetrically fixed between the cylinder fixing plate and the crimping fixing plate, the two pull rods are connected by a connecting strip, and lifting rings are installed in the middle position of the connecting strip and the middle position of the top of the locking plate.

[0008] As a further improvement of the technical solution, several oil cylinders are fixedly installed between the oil cylinder fixing plate and the crimping fixing plate, one end of the oil cylinder piston rod approaches the direction close to the locking plate, and a connecting rod is threadedly connected to one end of the oil cylinder piston rod, one end of the connecting rod is fixedly installed with the locking plate, and when the piston rod of the oil cylinder contracts, the locking plate and the crimping fixing plate approach each other.

[0009] As a further improvement of the present technical solution, the insulating support is arranged between the crimping fixing plate and the locking plate, and the insulating support includes a supporting insulator in the shape of a triangle, a mounting hole is installed in the middle of the side of the supporting insulator, a center block is clamped on the internal thread of the mounting hole, two ends of the center block extend out of the two ends of the mounting hole, and the extending distance is the same, the conductor passes through the center block, and a gap is left at the contact position between the conductor and the center block.

[0010] As a further improvement of the present technical solution, the mounting part comprises an upper semicircular template of a closing die and a lower semicircular template of a closing die, the lower semicircular template of the closing die and the lower semicircular template of the closing die are connected together by screws to form a ring, and the ring sleeve formed by the upper semicircular template of the closing die and the lower semicircular template of the closing die is arranged on the conductor, and at the same time, several upper semicircular templates of the closing die are respectively fixed on the side walls of the crimping fixing plate and the locking plate by screws.

[0011] As a further improvement of the technical solution, one side of the upper semicircular template of the closing die is provided with an upper semicircular plate of the top push die and a lower semicircular plate of the top push die arranged on the lower side of the upper semicircular plate of the top push die, the upper semicircular plate of the top push die and the lower semicircular plate of the top push die are combined together to form a ring, and the conductor passes through the middle part of the ring composed of the upper semicircular plate of the top push die and the lower semicircular plate of the top push die, and the inner side walls of the upper semicircular plate of the top push die and the lower semicircular plate of the top push die are in contact with the side walls of the conductor.

[0012] As a further improvement of the technical solution, a fixed installation groove is opened on the inner side wall near one end of the upper semicircular template of the closing die and the lower semicircular template of the closing die, and an arc pressure plate is arranged inside the fixed installation groove. A plurality of screws are rotatably connected to the arc pressure plate, and the screws are threadedly connected to the upper semicircular template of the closing die and the lower semicircular template of the closing die, and an extension plate is fixed on one end of the upper semicircular plate of the pushing die and the lower semicircular plate of the pushing die near the upper semicircular template of the closing die, and one end of the extension plate is inserted into the inner part of the ring formed by the upper semicircular template of the closing die and the lower semicircular template of the closing die, and the two arc pressure plates squeeze and fix the extension plate.

[0013] As a further improvement of the present technical solution, when the crimping fixing plate and the locking plate are close to each other, the crimping fixing plate and the locking plate push the upper semicircular template of the closing die and the lower semicircular template of the closing die, so that the upper semicircular template of the closing die and the lower semicircular template of the closing die push the upper semicircular plate of the top push die and the lower semicircular plate of the top push die, so that the upper semicircular plate of the top push die and the lower semicircular plate of the top push die are close to the central insert, and at the same time, the wedge block is placed in the gap between the central insert and the conductor, and the moving upper semicircular plate of the top push die and the lower semicircular plate of the top push die push the wedge block into the interior of the central insert.

[0014] As a further improvement of the technical solution, an arc-shaped extrusion groove is provided at a point on the upper semicircular template of the closing die and the lower semicircular template of the closing die away from the fixed installation groove. The arc-shaped extrusion groove shrinks inward from close to the end toward the inside. After the wedge block is squeezed into the center insert, the installation direction of the mounting piece is adjusted so that the arc-shaped extrusion groove squeezes the end of the center insert so that the end of the center insert is close to the side wall of the conductor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the hydraulic device for crimping the three-phase common box busbar support insulator, the connection between the center insert and the conductor is fixed by hydraulic crimping, which avoids the generation of waste slag and waste gas due to welding, and also avoids the waste slag generated during welding from contaminating the insulating support, ensuring the dust-free state of the insulating support in the later stage, and facilitating subsequent installation. At the same time, by adopting the extrusion method between the center insert and the conductor, the trouble of setting the welding hole position is eliminated, the labor of installing between the center insert and the conductor is reduced, and the installation between the center insert and the conductor is convenient.

[0016] 2. In the hydraulic device for crimping the three-phase common box busbar support insulator, the crimping fixing plate and the locking plate are driven to move by the oil cylinder, so that the crimping fixing plate and the locking plate drive several mounting parts to approach the center block, so that the upper semicircular plate of the top push die and the lower semicircular plate of the top push die first squeeze the wedge block placed between the center block and the conductor into the inside of the center block, so that the conductor and the center block are fixed, and then the warped center block is squeezed by the upper semicircular template of the closing die and the lower semicircular template of the closing die, so that the end of the center block is close to the conductor, further improving the stability of the connection between the conductor and the center block, ensuring that the support insulator can stably support the conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention when it is installed; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic structural diagram of the integral structure extruded wedge block of the present invention; Figure 4 It is a structural schematic diagram of the sealing center insert of the integral device of the present invention; Figure 5 It is a schematic diagram of the structure of the extrusion mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the insulating support member of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the insulating support member of the present invention; Figure 8 It is a structural schematic diagram of the mounting member of the present invention; Fig. 9 It is a schematic diagram of the exploded structure of the mounting piece of the present invention; Fig.10 This is a schematic diagram of the planar structure of the overall structure of the present invention when it is installed; Fig.11 It is a schematic diagram of the structural movement of the integral structure extruding wedge block of the present invention; Fig.12 It is a schematic diagram of the structural movement of the sealing center insert of the integral device of the present invention; Fig.13 It is a structural schematic diagram of the upper semicircular plate of the push die and the lower semicircular plate of the push die extruding the wedge-shaped block of the present invention; Fig.14 It is a structural schematic diagram of the upper semicircular template of the closing die and the lower semicircular template of the closing die extruding the central insert block of the present invention.

[0018] The meaning of each number in the figure is: 1. Extrusion mechanism; 11. Cylinder fixing plate; 12. Crimping fixing plate; 13. Locking plate; 14. Wire placement groove; 15. Cylinder; 151. Connecting rod; 16. Pull rod; 17. Lifting ring; 18. Tightening plate; 19. Tightening screw; 2. Insulation support; 21. Support insulator; 22. Mounting hole; 23. Center insert; 3. Mounting parts; 31. Upper semicircular template of closing die; 32. Lower semicircular template of closing die; 33. Upper semicircular plate of top-pushing die; 34. Lower semicircular plate of top-pushing die; 35. Arc extrusion groove; 36. Fixed installation groove; 37. Arc pressing plate; 38. Extension plate; 4. Conductor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In order to avoid the trouble of welding and the impurities left by welding that may affect the installation of the subsequent conductor 4, please refer to Figure 1-Figure 14As shown, the purpose of this embodiment is to provide a hydraulic device for crimping three-phase busbar support insulators, including a squeezing mechanism 1, an insulating support 2 is arranged inside the squeezing mechanism 1, the squeezing mechanism 1 is arranged on three conductors 4, the three conductors 4 are arranged in an inverted herringbone shape, the squeezing mechanism 1 is installed on the conductor 4, the conductor 4 supports the squeezing mechanism 1, so that the squeezing mechanism 1 can be placed on the upper side of the conductor 4, and the insulating support 2 is also arranged on the three conductors 4. Both sides of the insulating support 2 are provided with a plurality of mounting members 3 corresponding to the positions of the conductors 4, that is, a total of six mounting members 3 are arranged on the three conductors 4, and two mounting members 3 are installed on each conductor 4. At the same time, a plurality of wedge blocks are arranged on the insulating support 2, and the wedge blocks are arranged at the gap where the insulating support 2 and the conductor 4 contact, and then the squeezing mechanism 1 drives the mounting members 3 to move. Approach the insulating support 2 so that the insulating support 2 presses the wedge block into the interior of the insulating support 2. At the same time, after the mounting member 3 is pressed into the wedge block, the extrusion mechanism 1 drives the mounting member 3 away from the insulating support 2, leaving a space between the mounting member 3 and the insulating support 2. After leaving a space between the insulating support 2 and the mounting member 3, the installation state of the mounting member 3 is adjusted, the direction in which the mounting member 3 approaches the insulating support 2 is changed, and then the extrusion mechanism 1 drives the mounting member 3 to approach the insulating support 2 again, so that the mounting member 3 presses the insulating support 2 into the wedge block and the raised edge is pressed in the direction close to the conductor 4, so that the end of the insulating support 2 and the conductor 4 are in close contact, preventing impurities from entering the interior of the insulating support 2 through the gap between the insulating support 2 and the conductor 4, so as to ensure the sealing effect of the installation position of the insulating support 2 and the conductor 4.

[0021] The structures of the extrusion mechanism 1, the insulating support member 2 and the mounting member 3 are detailed as follows: The insulating support 2 includes a supporting insulator 21 in the shape of a triangle, a mounting hole 22 is installed in the middle of the side of the supporting insulator 21, a center block 23 is clamped with the internal thread of the mounting hole 22, the middle position of the center block 23 is rotatably connected to the mounting hole 22, and at the same time, both ends of the center block 23 extend out of the two ends of the mounting hole 22, and the extending distances are the same. In the process of laying the conductor 4, one end of the conductor 4 is passed through the center block 23, so that the center block 23 and the conductor 4 are sleeved and connected, that is, the insulating support 2 is installed on the conductor 4 when the conductor 4 is laid, and at the same time, when the conductor 4 is inside the center block 23, a gap is left at the contact position between the conductor 4 and the center block 23, and the gap between the conductor 4 and the center block 23 is for the convenience of inserting the conductor 4 into the center block 23, so that the insulating support 2 and the conductor 4 are easy to install.

[0022] The extrusion mechanism 1 includes a cylinder fixing plate 11, a crimping fixing plate 12 and a locking plate 13 which are arranged in sequence. The cylinder fixing plate 11, the crimping fixing plate 12 and the locking plate 13 are all T-shaped. The cylinder fixing plate 11, the crimping fixing plate 12 and the locking plate 13 are arranged vertically, and the lower sides of the top ends and the bottom positions thereof are provided with wire placement grooves 14 for placing the conductor 4. The conductor 4 is arranged in the corresponding wire placement grooves 14 on the cylinder fixing plate 11, the crimping fixing plate 12 and the locking plate 13. At the same time, a pull rod 16 is fixed symmetrically between the cylinder fixing plate 11 and the crimping fixing plate 12. The two pull rods 16 fix the cylinder fixing plate 11 and the crimping fixing plate 12. The oil cylinder 15 is fixedly connected together, and a plurality of oil cylinders 15 are fixedly installed between the oil cylinder fixing plate 11 and the crimping fixing plate 12. The number of the plurality of oil cylinders 15 can be three or a multiple of three. This scheme selects three oil cylinders 15, and the three oil cylinders 15 are arranged in an inverted herringbone shape. One end of the piston rod of the oil cylinder 15 approaches the direction close to the locking plate 13, and a connecting rod 151 is threadedly connected to one end of the piston rod of the oil cylinder 15, and one end of the connecting rod 151 is fixedly installed with the locking plate 13. The oil cylinder fixing plate 11, the crimping fixing plate 12 and the locking plate 13 are combined together by the oil cylinder 15, so that the oil cylinder fixing plate 11, the crimping fixing plate 12 and the locking plate 13 are combined into a whole.

[0023] At the same time, the two pull rods 16 are connected by a connecting strip, and a lifting ring 17 is installed in the middle position of the connecting strip and the middle position of the top of the locking plate 13. When it is necessary to fix the insulating support 2 and the conductor 4, the lifting rope on the crane is tied to the two lifting rings 17 and the lifting rope is tightened to move the extrusion mechanism 1 upward and place the extrusion mechanism 1 on the conductor 4. The placement position is determined according to the position of the insulating support 2 installed on the conductor 4, so that the insulating support 2 is arranged between the crimping fixing plate 12 and the locking plate 13. When the three conductors 4 are respectively placed in the wire placement grooves 14 corresponding to the cylinder fixing plate 11, the crimping fixing plate 12 and the locking plate 13, the inverted herringbone conductor 4 stably supports the extrusion mechanism 1 on the conductor 4.

[0024] In order to ensure the stability of the crane lifting the extrusion mechanism 1, during the process of the extrusion mechanism 1 being lifted, the piston rod of the cylinder 15 is in a retracted state, so that the crimping fixing plate 12 and the locking plate 13 are close to each other, and the distance between the crimping fixing plate 12 and the locking plate 13 is sufficient for the placement of the insulating support 2. When the extrusion mechanism 1 is placed on the conductor 4, the piston rod of the cylinder 15 is extended again, so that the crimping fixing plate 12 and the locking plate 13 are away from each other. When the piston rod of the cylinder 15 is retracted, the locking plate 13 and the crimping fixing plate 12 are close to each other, so that the crimping fixing plate 12 and the locking plate 13 are close to the insulating support 2.

[0025] After the extrusion mechanism 1 is placed on the conductor 4, the mounting parts 3 are installed on the extrusion mechanism 1, and the number of the mounting parts 3 is twice the number of the conductors 4, wherein the mounting parts 3 include an upper semicircular template 31 of a closing die and a lower semicircular template 32 of a closing die, and the lower semicircular template 32 of the closing die and the lower semicircular template 32 of the closing die are connected together by screws to form a ring, and the ring sleeve composed of the upper semicircular template 31 of the closing die and the lower semicircular template 32 of the closing die is arranged on the conductor 4, and at the same time, several upper semicircular templates 31 of the closing die are respectively fixed on the side walls of the crimping fixing plate 12 and the locking plate 13 by screws, that is, three mounting parts 3 are installed on the adjacent side walls of the crimping fixing plate 12 and the locking plate 13, and the central axis of the upper semicircular template 31 of the closing die fixed on the crimping fixing plate 12 and the locking plate 13 and the wire placement groove 14 are on the same straight line.

[0026] At the same time, an upper semicircular plate 33 of the top push die and a lower semicircular plate 34 of the top push die arranged on the lower side of the upper semicircular plate 33 of the top push die are arranged on one side of the upper semicircular plate 31 of the closing die. The upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die are combined to form a ring, and the conductor 4 passes through the middle of the ring formed by the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die, and the inner side walls of the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die are in contact with the side walls of the conductor 4, and the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die are arranged on the upper semicircular plate 31 of the closing die. On one side of the insulating support 2, a fixed installation groove 36 is opened on the inner side wall of the upper semicircular template 31 of the closing die and the lower semicircular template 32 of the closing die near one end, and an arc pressing plate 37 is arranged inside the fixed installation groove 36. A plurality of screws are rotatably connected to the arc pressing plate 37. The screws are threadedly connected to the upper semicircular template 31 of the closing die and the lower semicircular template 32 of the closing die, and an extension plate 38 is fixed to the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die near one end of the upper semicircular template 31 of the closing die. When installing the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die, Insert one end of the extension plate 38 into the inner part of the ring formed by the upper semicircular template 31 of the closing die and the lower semicircular template 32 of the closing die, and then rotate the screws installed on the arc pressing plate 37 to make the two arc pressing plates 37 approach each other to squeeze and fix the extension plate 38, so that the two extension plates 38 are tightly squeezed together, so as to ensure the stable installation between the upper semicircular plate 33 of the ejection die and the lower semicircular plate 34 of the ejection die.

[0027] After the installation of the mounting member 3 is completed, a tightening plate 18 is fixed on the side wall of the crimping fixing plate 12 and the locking plate 13 near the bottom, and a tightening screw 19 is slidably arranged between the two tightening plates 18. The tightening screw 19 is used to seal the bottom of the crimping fixing plate 12 and the locking plate 13 to ensure the safety of the extrusion mechanism 1 on the conductor 4. When the extrusion mechanism 1 falls on the conductor 4, the tightening screw 19 prevents the extrusion mechanism 1 from detaching from the conductor 4 to ensure the safety of the extrusion mechanism 1 in use.

[0028] During initial use, the wedge block is placed in the gap between the central insert block 23 and the conductor 4, and then the piston rod of the oil cylinder 15 begins to contract, and the contracted piston rod drives the crimping fixing plate 12 and the locking plate 13 to approach each other. When the crimping fixing plate 12 and the locking plate 13 approach each other, the crimping fixing plate 12 and the locking plate 13 push the closing die upper semicircular template 31 and the closing die lower semicircular template 32, so that the closing die upper semicircular template 31 and the closing die lower semicircular template 32 push the top push die upper semicircular plate 33 and the top push die lower semicircular plate 34, so that the top push die upper semicircular plate 33 and the top push die lower semicircular plate 34 are close to the central insert block 23. In the process that the top push die upper semicircular plate 33 and the top push die lower semicircular plate 34 approach the central insert block 23, one end of the top push die upper semicircular plate 33 and the top push die lower semicircular plate 34 and one end of the wedge block Contact, in the process of the crimping fixing plate 12 and the locking plate 13 driving the mounting part 3 to move, the locking plate 13 will move first, and when the mounting part 3 installed on the locking plate 13 contacts the wedge block, the crimping fixing plate 12 will then approach the insulating support 2, so that the mounting parts 3 on the crimping fixing plate 12 and the locking plate 13 are both connected with the wedge blocks at both ends of the center insert 23, and when the upper semicircular plate 33 and the lower semicircular plate 34 of the pushing die contact the wedge blocks, the crimping fixing plate 12 and the locking plate 13 will synchronously approach the insulating support 2, so that the moving upper semicircular plate 33 and the lower semicircular plate 34 of the pushing die push the wedge blocks into the interior of the center insert 23, and in the process of the wedge blocks being squeezed into the interior of the center insert 23, the wedge blocks fix the center insert 23 and the conductor 4 together, making it impossible for the center insert 23 and the conductor 4 to move.

[0029] After the upper semicircular plate 33 and the lower semicircular plate 34 of the push die squeeze the wedge block into the center insert 23, the end of the center insert 23 is squeezed outward by the wedge block. At this time, the gap between the end of the center insert 23 and the conductor 4 is enlarged, and the enlarged gap makes it easy for foreign impurities to enter between the center insert 23 and the conductor 4, thereby affecting the subsequent dust-free treatment. In order to solve this problem, an arc extrusion groove 35 is provided at a point away from the fixed installation groove 36 on the upper semicircular template 31 and the lower semicircular template 32 of the closing die. The arc extrusion groove 35 is formed by The end portion contracts inwardly toward the inside. After the wedge-shaped block is squeezed into the central insert 23, the piston rod of the oil cylinder 15 extends outward, so that the crimping fixing plate 12 and the locking plate 13 are away from the insulating support 2, so that the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die are pulled out from the inside of the central insert 23. In the process of pulling out the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die from the central insert 23, the locking plate 13 or the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die may be pulled out at different times. After the distance between the fixing plate 12 and the locking plate 13 reaches the maximum, the operator can pull the extrusion mechanism 1 to slide on the conductor 4 to adjust the spacing between the insulating support 2 and the crimping fixing plate 12 and the locking plate 13, so that the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die are both out of the central insert 23, and then use a tool to rotate the screws on the arc pressing plate 37 so that the arc pressing plate 37 does not clamp the extension plate 38, and remove the upper semicircular plate 33 of the top push die and the lower semicircular plate 34 of the top push die from the upper semicircular template 31 of the closing die and the lower semicircular template 32 of the closing die. After removing the upper semicircular plate 33 and the lower semicircular plate 34 of the ejection die, adjust the installation direction of the mounting member 3 so that one end of the arc-shaped extrusion groove 35 provided on the upper semicircular template 31 and the lower semicircular template 32 of the closing die is close to the insulating support 2, so that the arc-shaped extrusion groove 35 extrude the end of the center block 23 so that the end of the center block 23 is close to the side wall of the conductor 4, so that the end of the center block 23 blocks the inside and outside of the center block 23, and prevents external impurities from entering the space between the center block 23 and the conductor 4.

[0030] The steps of adjusting the installation direction of the mounting part 3 are as follows: using a tool to rotate the screws connecting the upper semicircular template 31 of the closing die and the lower semicircular template 32 of the closing die, so that the lower semicircular template 32 of the closing die is removed from the upper semicircular template 31 of the closing die, and then using a tool to rotate the screws connecting the upper semicircular template 31 of the closing die and the crimping fixing plate 12 and the locking plate 13, so that several upper semicircular templates 31 of the closing die are separated from the crimping fixing plate 12 and the locking plate 13 respectively, and then flipping the upper semicircular template 31 of the closing die The template 31 is made so that one end of the upper semicircular template 31 of the closing die close to the arc extrusion groove 35 is close to the insulating support 2, and then a plurality of upper semicircular templates 31 of the closing die are fixed to the crimping fixing plate 12 and the locking plate 13 by screws, and then the lower semicircular template 32 of the closing die and the upper semicircular template 31 of the closing die are placed correspondingly, and the lower semicircular template 32 of the closing die is fixed to the upper semicircular template 31 of the closing die by screws, and the upper semicircular template 31 of the closing die and the lower semicircular template 33 of the closing die are fixed to the upper semicircular template 31 of the closing die. After installation, the piston rod of the oil cylinder 15 begins to contract, so that the mounting member 3 squeezes the end of the center block 23. In the process of the mounting member 3 approaching the end of the center block 23, the end of the center block 23 first contacts the end position of the arc extrusion groove 35 close to the upper semicircular template 31 of the closing die. Because the shape of the arc extrusion groove 35 is an arc shape that gradually approaches the center axis of the upper semicircular template 31 from the position close to the edge of the upper semicircular template 31 of the closing die to the inside of the upper semicircular template 31 of the closing die, in the process of the mounting member 3 constantly approaching the center block 23, the end of the center block 23 is squeezed by the arc extrusion groove 35, so that the end of the center block 23 gradually approaches the conductor 4, so that the end of the center block 23 contacts the side wall of the conductor 4, so that the space between the center block 23 and the conductor 4 forms a closed space, so as to prevent foreign impurities from entering between the center block 23 and the conductor 4, and ensure dust-free control during the subsequent assembly of the GIL equipment.

[0031] By fixing the connection between the center block 23 and the conductor 4 by hydraulic crimping, the generation of waste slag and waste gas caused by welding is eliminated, and the waste slag generated during welding is avoided from contaminating the insulating support 2, thereby ensuring the dust-free state of the insulating support 2 in the later stage and facilitating subsequent installation. At the same time, by adopting an extrusion method between the center block 23 and the conductor 4, the trouble of setting welding holes is eliminated, the labor of installing the center block 23 and the conductor 4 is reduced, and the installation between the center block 23 and the conductor 4 is convenient.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hydraulic device for crimping a three-phase busbar support insulator, comprising a pressing mechanism (1), an insulating support member (2) being arranged inside the pressing mechanism (1), the pressing mechanism (1) being arranged on three conductors (4), the conductors (4) receiving the pressing mechanism (1), characterized in that: The insulating support member (2) is arranged on three conductors (4), and a plurality of mounting members (3) corresponding to the positions of the conductors (4) are arranged on both sides of the insulating support member (2). At the same time, a plurality of wedge blocks are arranged on the insulating support member (2). The squeezing mechanism (1) drives the mounting member (3) to approach the insulating support member (2), so that the insulating support member (2) presses the wedge blocks into the interior of the insulating support member (2). At the same time, after the mounting member (3) is pressed into the wedge blocks, the squeezing mechanism (1) drives the mounting member (3) away from the insulating support member (2) and adjusts the installation state of the mounting member (3). Then, the squeezing mechanism (1) drives the mounting member (3) to approach the insulating support member (2) again, so that the mounting member (3) presses the insulating support member (2) into the wedge blocks and the raised edge is pressed in a direction close to the conductor (4).

2. The hydraulic device for crimping three-phase busbar support insulators according to claim 1 is characterized in that: The extrusion mechanism (1) comprises a cylinder fixing plate (11), a crimping fixing plate (12) and a locking plate (13) which are arranged in sequence. The cylinder fixing plate (11), the crimping fixing plate (12) and the locking plate (13) are all T-shaped, and the lower sides of the top ends and the bottom of the cylinder fixing plate (11), the crimping fixing plate (12) and the locking plate (13) are provided with wire placement grooves (14) for placing the conductor (4). The conductor (4) is arranged in the corresponding wire placement grooves (14) on the cylinder fixing plate (11), the crimping fixing plate (12) and the locking plate (13).

3. The hydraulic device for crimping three-phase busbar support insulators according to claim 2 is characterized in that: A pull rod (16) is fixed symmetrically between the oil cylinder fixing plate (11) and the crimping fixing plate (12), and the two pull rods (16) are connected by a connecting strip. A lifting ring (17) is installed at the middle position of the connecting strip and the middle position of the top of the locking plate (13).

4. The hydraulic device for crimping three-phase busbar support insulators according to claim 2 is characterized in that: A plurality of oil cylinders (15) are fixedly mounted between the oil cylinder fixing plate (11) and the crimping fixing plate (12); one end of the piston rod of the oil cylinder (15) approaches the locking plate (13); and a connecting rod (151) is threadedly connected to one end of the piston rod of the oil cylinder (15); one end of the connecting rod (151) is fixedly mounted to the locking plate (13); when the piston rod of the oil cylinder (15) contracts, the locking plate (13) and the crimping fixing plate (12) approach each other.

5. The hydraulic device for crimping three-phase busbar support insulators according to claim 4 is characterized in that: The insulating support member (2) is arranged between the crimping fixing plate (12) and the locking plate (13), and the insulating support member (2) comprises a supporting insulator (21) in the shape of a triangle, a mounting hole (22) is installed at the middle position of the side of the supporting insulator (21), a central insert (23) is clamped on the internal thread of the mounting hole (22), two ends of the central insert (23) extend out of the two ends of the mounting hole (22), and the extending distances are the same, the conductor (4) passes through the central insert (23), and a gap is left at the contact position between the conductor (4) and the central insert (23).

6. The hydraulic device for crimping three-phase busbar support insulators according to claim 5, characterized in that: The mounting member (3) comprises an upper semicircular template (31) of a closing die and a lower semicircular template (32) of a closing die. The lower semicircular template (32) of the closing die are connected together by screws to form a ring. The ring formed by the upper semicircular template (31) of the closing die and the lower semicircular template (32) of the closing die is arranged on the conductor (4). At the same time, a plurality of the upper semicircular templates (31) of the closing die are fixed to the side walls of the crimping fixing plate (12) and the locking plate (13) by screws.

7. The hydraulic device for crimping three-phase busbar support insulators according to claim 6 is characterized in that: An upper semicircular plate (33) of a top-pushing die and a lower semicircular plate (34) of a top-pushing die arranged on the lower side of the upper semicircular plate (33) of the top-pushing die are arranged on one side of the upper semicircular plate (31) of the closing die. The upper semicircular plate (33) of the top-pushing die and the lower semicircular plate (34) of the top-pushing die are combined to form a ring. The conductor (4) passes through the middle part of the ring formed by the upper semicircular plate (33) of the top-pushing die and the lower semicircular plate (34). The inner side walls of the upper semicircular plate (33) of the top-pushing die and the lower semicircular plate (34) of the top-pushing die are in contact with the side walls of the conductor (4).

8. The hydraulic device for crimping three-phase busbar support insulators according to claim 7 is characterized in that: A fixing groove (36) is provided on the inner side wall of the closing die upper semicircular template (31) and the closing die lower semicircular template (32) near one end, and an arc pressing plate (37) is arranged inside the fixing groove (36). A plurality of screws are rotatably connected to the arc pressing plate (37), and the screws are threadedly connected to the closing die upper semicircular template (31) and the closing die lower semicircular template (32). An extension plate (38) is fixed to one end of the push die upper semicircular plate (33) and the push die lower semicircular plate (34) near the closing die upper semicircular template (31), and one end of the extension plate (38) is inserted into the inner part of the ring formed by the closing die upper semicircular template (31) and the closing die lower semicircular template (32), and the two arc pressing plates (37) squeeze and fix the extension plate (38).

9. The hydraulic device for crimping three-phase busbar support insulators according to claim 8, characterized in that: When the crimping fixing plate (12) and the locking plate (13) are brought close to each other, the crimping fixing plate (12) and the locking plate (13) push the closing die upper semicircular template (31) and the closing die lower semicircular template (32), so that the closing die upper semicircular template (31) and the closing die lower semicircular template (32) push the top push die upper semicircular plate (33) and the top push die lower semicircular plate (34), so that the top push die upper semicircular plate (33) and the top push die lower semicircular plate (34) are brought close to the central insert (23), and at the same time, the wedge block is placed in the gap between the central insert (23) and the conductor (4), and the moving top push die upper semicircular plate (33) and the top push die lower semicircular plate (34) push the wedge block into the interior of the central insert (23).

10. The hydraulic device for crimping three-phase busbar support insulators according to claim 8, characterized in that: The upper semicircular template (31) of the closing die and the lower semicircular template (32) of the closing die are provided with an arc-shaped extrusion groove (35) at a point away from the fixed installation groove (36). The arc-shaped extrusion groove (35) shrinks inward from the direction close to the end toward the inside. After the wedge-shaped block is extruded into the central insert (23), the installation direction of the installation member (3) is adjusted so that the arc-shaped extrusion groove (35) extrudes the end of the central insert (23) so that the end of the central insert (23) is close to the side wall of the conductor (4).

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