CN109712835B - Assembling tool for transmission mechanism of high-voltage alternating-current isolating switch - Google Patents
Assembling tool for transmission mechanism of high-voltage alternating-current isolating switch Download PDFInfo
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- CN109712835B CN109712835B CN201811559798.8A CN201811559798A CN109712835B CN 109712835 B CN109712835 B CN 109712835B CN 201811559798 A CN201811559798 A CN 201811559798A CN 109712835 B CN109712835 B CN 109712835B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 102
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- 238000005553 drilling Methods 0.000 claims abstract description 12
- 229910003460 diamond Inorganic materials 0.000 claims description 9
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- 238000002474 experimental method Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 29
- 238000003466 welding Methods 0.000 description 22
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- 230000009286 beneficial effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
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Abstract
The invention relates to the technical field of high-voltage power transmission and transformation equipment experiments, in particular to a high-voltage alternating-current isolating switch assembling tool which comprises a base, wherein an input shaft positioning hole for an input shaft to penetrate through and an input shaft positioning piece for fixing the input shaft are arranged on the base, and a transmission shaft positioning hole for a transmission shaft to penetrate downwards is also arranged on the base; the drilling jig positioning plate is provided with a processing hole and a positioning hole, and the central line of the positioning hole in the front-back direction and the same plane where the axis of the drilling jig are located form a positioning plane; the drill jig positioning plate is provided with a positioning plane coplanar with the axis of the drill jig, and the distance between the positioning plane and the front and rear hole walls of the positioning hole is equal to and equal to the radius of the matching part of the output rotating shaft and the positioning hole; the assembly process can be realized only by installing the parts into corresponding positions, so that the tool is simple in structure and high in assembly efficiency.
Description
Technical Field
The invention relates to the technical field of high-voltage power transmission and transformation equipment experiments, in particular to an assembly tool for a transmission mechanism of a high-voltage alternating-current isolating switch.
Background
The high-voltage alternating-current isolating switch is mainly used for reliably isolating a part needing power failure from a live part in a high-voltage distribution device so as to ensure the safety of maintenance work. In order to ensure the normal opening and closing reliability locking of the product, the requirement on a transmission mechanism of the product is high.
The transmission mechanism of the high-voltage alternating-current isolating switch mainly comprises a transmission shaft, a crank arm welding device, a pinion, a sector gear and an input shaft, wherein the input shaft and the transmission shaft are two vertical shafts which are parallel, the input shaft is fixedly connected with the sector gear, the transmission shaft is fixedly connected with the pinion, a toothed part of the sector gear and the pinion can be meshed and rotated within a certain angle range, the crank arm welding device is fixed on the upper end face of the pinion and used for swinging, a first central hole is formed in one end of the crank arm and coaxially arranged with the transmission shaft, the other end of the crank arm is a free end, and the free end is provided with an output rotating shaft used for outputting power. In order to ensure that the sector gear provides a sufficient rotation angle for the crank arm welding to realize the opening and closing of the high-voltage alternating-current isolating switch, the lower end of the input shaft is provided with a flange positioning hole which is in transmission connection with a link mechanism of the high-voltage alternating-current isolating switch, and meanwhile, in order to ensure the swing starting/stopping position and the swing angle range of the crank arm welding, the flange positioning hole and the link mechanism have a preset corresponding relation with the meshing/disengaging position of the pinion and the sector gear, so the following requirements are met in the assembling process of the crank arm welding: a certain angle range exists between the plane where the axis of the first central hole and the axis of the output rotating shaft are welded on the crank arm and the plane where the axes of the input shaft and the rotating shaft are located. In the actual assembly process, in order to meet the requirement of the crank arm welding assembly angle, the assembly is completed by means of an assembly tool.
The scissors type high-voltage isolating switch assembling tool disclosed in the Chinese patent with the publication number of CN104332337B comprises a base, wherein a crank arm positioning plate for positioning the crank arm assembling angle and a positioning block for supporting a transmission shaft are arranged on the base, a positioning hole which is penetrated by a positioning piece for positioning the crank arm is formed in the side surface of the crank arm positioning plate in a front-back direction, a supporting block for supporting an input shaft is arranged on the base, and a limiting mechanism for limiting the radial transmission of a sector gear is further arranged on the base.
Disclosure of Invention
The invention aims to provide an assembly tool for a transmission mechanism of a high-voltage alternating-current isolating switch, which is simple in structure and high in assembly efficiency.
In order to achieve the purpose, the technical scheme of the assembly tool for the transmission mechanism of the high-voltage alternating-current isolating switch provided by the invention is as follows:
an assembly tool of a transmission mechanism of a high-voltage alternating-current isolating switch comprises a base, wherein an input shaft positioning hole for an input shaft to vertically penetrate downwards and an input shaft positioning piece for fixing the input shaft in the rotating direction are arranged on the base, and the input shaft positioning piece can enable the axis of a flange positioning hole formed in the input shaft along the radial direction to form a set first included angle with a set tool reference plane; a transmission shaft positioning hole for a transmission shaft to penetrate downwards is formed in the right side of the input shaft positioning hole of the base; the drill jig positioning plate is provided with a set drill jig axis which is used for coaxially positioning with the axis of the transmission shaft, a processing hole which is used for drilling a hole which is communicated up and down on the crank arm and the gear and a positioning hole which is used for being in front and back stop fit with the output rotating shaft on the crank arm in the rotating direction are arranged on the drill jig positioning plate, the positioning hole is provided with a front hole wall and a back hole wall which are in tangent fit or matched fit with the output rotating shaft, the drill jig positioning plate is provided with a positioning plane which is coplanar with the axis of the drill jig, and the distance between the positioning plane and the front hole wall and the distance between the positioning plane and the back hole wall of the positioning hole are equal and equal to; the drilling jig positioning piece is used for positioning and assembling the drilling jig positioning plate so that the axis of the drilling jig is coaxial with the axis of the transmission shaft, and a set second included angle is formed between the positioning plane and a set tool reference plane.
The beneficial effects are that: the input shaft is positioned and installed through the input shaft positioning piece, so that the assembly angle of the sector gear is ensured, the sector gear and the pinion are in a meshed state during assembly through the transmission shaft positioning hole, and the assembly precision is improved; the drill jig positioning piece ensures that the drill jig axis of the drill jig positioning plate is coaxially arranged with the transmission shaft positioning hole during assembly; in addition, the mounting angle of the drill jig positioning plate is limited by the drill jig positioning piece, the output rotating shaft on the drill jig positioning plate penetrates through the positioning hole of the drill jig positioning plate, and the mounting precision of the crank arm welding is ensured through the front hole wall and the rear hole wall of the positioning hole which are in tangent fit or matched with the output rotating shaft, so that the high-precision assembly of the transmission mechanism of the high-voltage alternating-current isolating switch is ensured through the assembly tool of the transmission mechanism of the high-voltage alternating-current isolating switch. In addition, the whole assembly process is not provided with complicated connection and positioning relations, and the assembly process can be realized only by installing parts into corresponding positions, so that the structure of the assembly tool of the transmission mechanism of the high-voltage alternating-current isolating switch is simplified, and the assembly efficiency is improved.
Further, the base is provided with a supporting surface for upwards supporting the sector gear and the pinion, and the supporting surface is the upper end surface of the base; the supporting surface is a plane, and the input shaft positioning hole and the transmission shaft positioning hole are vertical holes which are formed in the supporting surface and are perpendicular to the supporting surface.
The beneficial effects are that: the base not only provides the location and the assembly of sector gear and pinion, still supports sector gear and pinion through the up end of self, has simplified high-pressure and has exchanged isolator's drive mechanism's overall structure of assembly fixture, and the up end is used for supporting moreover, also conveniently carries out assembly work.
Further, the jig setting element is including setting up the first, two cylinder locating pins that are located the front and back both sides of transmission shaft locating hole on the base, be equipped with on the jig locating plate be used for with first locating hole and the second locating hole of cylinder locating pin clearance centering complex, the axis of first, two cylinder locating pins is parallel with the axis of transmission shaft locating hole, just distance between the axis of first cylinder locating pin and the axis of transmission shaft locating hole equals with the distance between first locating hole axis and the jig axis, distance between the axis of second cylinder locating pin and the transmission shaft locating hole axis equals with the distance between the axis of second locating hole and the jig axis.
The beneficial effects are that: the axis of the first mounting hole and the axis of the second mounting hole are parallel to the axis of the transmission shaft, and then the axis of the first positioning piece and the axis of the second positioning piece are parallel to the axis of the transmission shaft, so that the jig positioning plate is conveniently coaxially positioned.
Furthermore, the drill jig positioning piece comprises cylindrical positioning pins and rhombic positioning pins which are arranged on the base and positioned on the front side and the rear side of the transmission shaft positioning hole; the drill jig positioning plate is provided with a first positioning hole and a U-shaped opening, the first positioning hole and the U-shaped opening are used for being in clearance centering fit with the cylindrical positioning pin and the diamond positioning pin respectively, the distance between the axis of the first positioning hole and the axis of the drill jig is equal to the distance between the axis of the cylindrical positioning pin and the axis of the transmission shaft positioning hole, the U-shaped opening is provided with a left side wall and a right side wall, the left side wall and the right side wall are used for being in blocking fit with the diamond positioning pin in the left-right direction, the symmetrical center line of the U-shaped opening, the axis of the first positioning hole and the axis of the transmission shaft positioning hole are located on the same plane, and the diamond positioning pin is in movable fit with the.
The beneficial effects are that: realize one side two round pin location to the jig locating plate, through rhombus locating pin and the cooperation of U-shaped opening in addition, can offset the tolerance that the part was made, improve the assembly precision.
Furthermore, the jig positioning plate is provided with more than two processing holes, and the processing holes are uniformly and alternately arranged around the axis of the jig.
The beneficial effects are that: guiding the drilling of the crank arm welding and the pinion through more than two holes for processing; the hole for processing surrounds around the jig axis, and the position of the hole for processing is further positioned through the jig axis, so that the design of the hole for processing is also facilitated.
Furthermore, the positioning hole is a long hole with the radial dimension in the left-right direction larger than that in the front-back direction, the positioning hole is matched with the output rotating shaft in a radial moving mode, the positioning hole is provided with a front hole wall and a rear hole wall which are oppositely arranged in the front-back direction, the front hole wall and the rear hole wall are used for being matched with the output rotating shaft in a tangent mode, and inner wall surfaces of the front hole wall and the rear hole wall are matched with the output rotating shaft in a tangent mode.
The beneficial effects are that: the output rotating shaft is movably assembled in a positioning hole which is a long hole, so that the crank arm welding device is conveniently positioned.
Further, be provided with on the base and be joining in marriage the hold-down mechanism that bores the in-process and compress tightly jig locating plate, turning arm weld dress and pinion, hold-down mechanism includes the clamp plate with the butt of base up end and the bracing piece with base fixed connection, the clamp plate has and hugs closely with jig locating plate up end in order to compress tightly the hold-down end of jig locating plate, the hold-down end has the U-shaped opening towards base the place ahead, the bracing piece passes the U-shaped opening to with compress tightly the end and be connected.
The beneficial effects are that: by arranging the pressing mechanism, parts needing to be matched with the drill are pressed, so that deviation cannot occur in the process of matching the drill, and the mounting precision is improved; in addition, the pressing mechanism consists of a pressing plate and a supporting rod, the pressing plate is directly abutted against the base, and the structure of the pressing mechanism is simplified.
Drawings
Fig. 1 is an assembly schematic diagram of an embodiment of an assembly tool of a transmission mechanism of a high-voltage alternating-current isolating switch, disclosed by the invention;
fig. 2 is a schematic structural diagram of a transmission mechanism to be assembled according to an embodiment of the assembly tool for the transmission mechanism of the high-voltage alternating-current isolating switch, disclosed by the invention;
fig. 3 is a schematic diagram illustrating installation requirements of a transmission mechanism to be assembled according to an embodiment of the assembly tool for the transmission mechanism of the high-voltage alternating-current isolating switch, disclosed by the invention;
fig. 4 is a top view of the transmission mechanism of the embodiment of the assembly tool for the transmission mechanism of the high-voltage alternating-current isolating switch, which is disclosed by the invention, after the assembly is completed;
FIG. 5 is a schematic structural diagram of a base of an embodiment of the assembly tool for the transmission mechanism of the high-voltage AC isolating switch according to the invention;
FIG. 6 is a schematic structural view of a jig positioning plate of an embodiment of the assembly fixture of the transmission mechanism of the high-voltage AC disconnecting switch according to the invention;
in the figure, 1-base; 2-sector gear; 3, pressing a plate; 4-pressing the nut; 5-special spanner; 6-supporting rods; 7-welding the crank arm; 8-drilling a mold positioning plate; 9-pinion gear; 10-positioning a pin shaft; 11-an input shaft; 12-an output shaft; 13-a drive shaft; 14-input shaft positioning hole; 15-a second positioning hole; 16-a transmission shaft positioning hole; 17-a first positioning hole; 18-fabrication holes; 19-positioning holes; 20-machining holes; 21-U-shaped gap; 22-diamond locating pins; 23-flange positioning holes; 24-a flange; 25-a first mounting hole; 26-a second mounting hole; 27-connection gap; 28-positioning plane; 29-a tooling datum plane; 30-cylindrical locating pin.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
Firstly, the structure and the assembly requirements of the transmission mechanism of the high-voltage alternating-current isolating switch, which is an object to be assembled, are introduced as follows: as shown in fig. 2 and 3, the transmission mechanism of the high-voltage ac isolator includes a sector gear 2, an input shaft 11 fixed to the sector gear 2, a pinion 9 for meshing with the sector gear 2, a crank arm welding 7 fixed to an upper end surface of the pinion 9 for swinging movement, and a transmission shaft 13 through which the pinion 9 and the crank arm welding 7 are sequentially inserted. Specifically, the toothed part of the sector gear 2 and the pinion 9 can be meshed and rotate within a certain angle range, one end of the crank arm welding device 7 is provided with a first central hole which is coaxial with the transmission shaft 13, the other end of the crank arm welding device is a free end, the free end is provided with an output rotating shaft 12 used for outputting power, and the output rotating shaft 12 is of a boss structure and comprises a large-diameter end and a small-diameter end. The axis of the input shaft 11 and the axis of the output shaft constitute an assembly reference plane.
The lower end of the input shaft 11 is provided with a flange positioning hole 23, the flange positioning hole 23 is connected with a flange 24, namely, the flange positioning hole 23 is used for ensuring the positioning and installation of the sector gear 2, and in addition, the flange 24 is in transmission connection with a link mechanism of the high-voltage alternating-current isolating switch through a connecting gap 27 uniformly arranged on the flange 24 in a surrounding manner along the circumferential direction of the flange 24. In order to ensure the swing starting/stopping position and the swing angle range of the crank arm welding device 7, a preset corresponding relation is formed between the pinion 9 and the meshing/disengaging position of the sector gear 2, so that the following requirements are met in the actual installation process of a transmission mechanism of the high-voltage alternating-current isolating switch: the central line of the connecting gap 27 forms an included angle B with the vertical plane of the assembly reference plane, and the same plane where the axis of the output rotating shaft 12 and the axis of the transmission shaft 13 are located forms an included angle A with the assembly reference plane.
In the embodiment of the assembly tool for the transmission mechanism of the high-voltage alternating-current isolating switch, as shown in fig. 1-6, the assembly tool for the transmission mechanism of the high-voltage alternating-current isolating switch comprises a base 1, wherein an input shaft positioning hole 14 for vertically and downwardly inserting an input shaft 11 is formed in the base 1, and the input shaft positioning hole 14 extends in the up-down direction and penetrates through the base 1; a second positioning hole 15 is formed in the side wall of the input shaft positioning hole 14 of the base 1, the second positioning hole 15 penetrates through the base 1 from front to back, the second positioning hole 15 radially penetrates through the input shaft positioning hole 14, a positioning pin shaft 10 (namely an input shaft positioning part) penetrates through the second positioning hole 15, a flange positioning hole 23 used for being fixed with a flange 24 is formed in the lower end of the input shaft 11, and the axis of the flange positioning hole 23 is perpendicular to the same plane where the axes of the input shaft positioning hole 14 and the transmission shaft positioning hole 16 are located; the positioning pin shaft 10 is used for penetrating through the flange positioning hole 23 so as to limit the installation angle of the input shaft 11 and prevent the input shaft 11 penetrating through the input shaft positioning hole 14 from rotating.
A transmission shaft positioning hole 16 is formed in the base 1 on the right side of the input shaft positioning hole 14, as shown in fig. 2 and 5, the transmission shaft positioning hole 16 is used for allowing the transmission shaft 13 to vertically penetrate downwards, and the horizontal distance between the axis of the transmission shaft positioning hole 16 and the axis of the input shaft positioning hole 14 enables the sector gear 2 and the pinion gear 9 to be meshed during assembly; be equipped with first mounting hole 25 and second mounting hole 26 respectively in both sides around transmission shaft locating hole 16, interference fit has cylindrical locating pin 30 in the first mounting hole 25, and interference fit has rhombus locating pin 22 in the second mounting hole 26, prevents to take place to rotate in the assembling process, influences the assembly precision. The cylindrical positioning pin 30 is located on the rear side of the transmission shaft positioning hole 16, the diamond-shaped positioning pin 22 is located on the front side of the transmission shaft positioning hole 16, and the axis of the cylindrical positioning pin 30 and the axis of the diamond-shaped positioning pin 22 are parallel to the axis of the transmission shaft positioning hole 16 respectively.
A jig positioning plate 8 is assembled on the cylindrical positioning pin 30 and the rhombic positioning pin 22, the jig positioning plate 8 is provided with a jig axis for coaxial positioning with the axis of the transmission shaft 13, as shown in fig. 4 and 6, a first positioning hole 17 and a U-shaped notch 21 for clearance fit with the cylindrical positioning pin 30 are respectively arranged on the jig positioning plate 8, and the distance from the axis of the first positioning hole 17 to the jig axis is equal to the distance from the axis of the first mounting hole 25 to the axis of the transmission shaft positioning hole 16, so as to ensure that the jig axis is coaxial with the axis of the transmission shaft positioning hole 16; the U-shaped notch 21 is located in front of the first positioning hole 17 and has a forward opening, a symmetric center line of the U-shaped notch 21, an axis of the first positioning hole 17 and an axis of the transmission shaft positioning hole 16 are located on the same plane, the U-shaped notch 21 is provided with a left side wall and a right side wall which extend forwards, the left side wall and the right side wall of the U-shaped notch are used for being matched with the diamond-shaped positioning pin 22 in a blocking mode, and meanwhile the U-shaped notch 21 and the diamond-shaped positioning pin 22 are matched in a guiding and moving mode along the front-back direction, so that manufacturing errors of the drill jig positioning plate 8 are eliminated, and the drill jig positioning plate 8 can be. The jig positioning plate 8 is of a water-drop-shaped structure, the width of the left end of the jig positioning plate 8 is larger than that of the right end of the jig positioning plate 8, and the first positioning hole 17 and the U-shaped notch 21 are arranged on side lugs extending out of the front side and the rear side of the jig positioning plate 8.
A positioning hole 19 is provided at the right end of the jig positioning plate 8, the positioning hole 19 is a long hole with a radial dimension in the left-right direction larger than that in the front-back direction, in this embodiment, the positioning hole 19, i.e., the long hole, has the same radial dimension as the large diameter end of the output rotating shaft 12, but in other embodiments, the radial dimension of the positioning hole 19 may be the same as that of the small diameter end. The positioning hole 19 is used for being upwards penetrated and installed with the output rotating shaft 12 during assembly, and is used for being in stop fit with the output rotating shaft 12 on the crank arm welding device 7 in the rotating direction and moving fit in the radial direction of the output rotating shaft 12; furthermore, the positioning hole 19 has a front hole wall and a rear hole wall which are oppositely arranged in the front-rear direction, the front hole wall and the rear hole wall are used for being in tangent fit with the output rotating shaft 12, and the inner wall surfaces of the front hole wall and the rear hole wall are tangent fit surfaces with the output rotating shaft 12; the jig axis also has a locating plane 28, and the distance between the locating plane 28 and the front and rear hole walls of the locating hole is equal to the radius of the matching part of the output rotating shaft and the locating hole.
A process hole 18 is arranged on a connecting line of the first positioning hole 17 of the jig positioning plate 8 and the U-shaped notch 21, and the axis of the process hole 18 is coaxial with the axis of the jig, so that the process hole 18 corresponds to the transmission shaft 13 during assembly.
Four machining holes 20 are provided around the process hole 18 at intervals to drill vertically penetrating holes in the crank arm welding 7 and the pinion 9.
The rear side of the cylindrical positioning pin 30 is provided with a pressing mechanism, as shown in fig. 1, the pressing mechanism comprises a pressing plate 3 and a supporting rod 6, the pressing plate 3 is an L-shaped pressing plate 3, the bottom end of the pressing plate 3 is abutted to the upper end face of the base 1, the other end of the pressing plate 3 is a pressing end and used for pressing a workpiece during assembly, a U-shaped opening is formed in the pressing end and arranged forward, and the supporting rod 6 is fixedly connected with the base 1, penetrates through the U-shaped opening and is connected with the pressing end through a nut.
In the assembly of the embodiment of the assembly tool for the transmission mechanism of the high-voltage alternating-current disconnecting switch, it should be explained first that the same plane where the axis of the input shaft positioning hole 14 and the axis of the transmission shaft positioning hole 16 are located is the tool reference plane 29, and the tool reference plane 29 is parallel to the assembly reference plane. When the assembly is started, the input shaft 11 penetrates into the input shaft positioning hole 14, the input shaft 11 and the input shaft positioning hole 14 are in transition fit, the upper end face of the base 1 is supported and attached to the lower end face of the sector gear 2 (the upper end face of the base 1 is a supporting face), the positioning pin shaft 10 penetrates into the second positioning hole 15 and the flange positioning hole 23 at the lower end of the input shaft 11 in sequence, and the flange positioning hole 23 is connected with the flange 24 in the actual working process, so that a first included angle D is formed between the axis of the flange positioning hole 23 and the tool reference plane 29 during assembly, and the first included angle D corresponds to an included angle B in the installation requirement, so that the sector gear 2 is positioned. The positioning pin shaft 10 prevents the sector gear 2 from rotating, and the assembly requirement of the sector gear 2 is met.
A transmission shaft 13 penetrates into the pinion 9 and is in clearance fit with the pinion 9, then the transmission shaft 13 penetrates into a transmission shaft positioning hole 16 and is in transition fit with the transmission shaft positioning hole 16, the upper end face of the base 1 is in supporting fit with the lower end face of the pinion 9, and at the moment, the sector gear 2 and the pinion 9 are in a meshed state; the U-shaped notch 21 of the drill jig positioning plate 8 is aligned with the diamond positioning pin 22, the first positioning hole 17 is aligned with the cylindrical positioning pin 30, the positioning hole 19 is aligned with the output rotating shaft 12, and the output rotating shaft 12 vertically penetrates upwards into the positioning hole 19. The installation of the drill jig positioning plate 8 is completed, the diamond-shaped positioning pin 22 and the U-shaped notch 21 are in stop fit and move in a guiding manner in the front-back direction, the first positioning hole 17 and the cylindrical positioning pin 30 are in clearance centering fit, and at the moment, the pinion 9 and the crank arm welding device 7 are both positioned between the cylindrical positioning pin 30 and the diamond-shaped positioning pin 22. At this time, the positioning plane 28 and the tooling datum plane 29 form a second included angle C, and the second included angle C is correspondingly equal to the included angle a in the installation requirement, so that the installation angle requirement of the crank arm welding device 7 is ensured.
The lower end of the pressing plate is abutted to the upper end face of the base 1, the pressing end of the pressing plate is attached to the drill jig positioning plate 8, the pressing nut 4 is screwed through the special rotary wrench 5, the pressing plate gradually presses the drill jig positioning plate 8, the connecting lever welding assembly 7 and the pinion 9 are pressed, the base 1 is pressed through another pressing plate, shaking in the process of assembling the drill is prevented, finally, the drill is sequentially assembled in the machining holes 20 on the drill jig positioning plate 8, after the drill is assembled, the elastic cylindrical pin is correspondingly driven in, the elastic cylindrical pin is in interference fit with the drill hole, the pinion 9 and the connecting lever welding assembly 7 are tightly connected together, a mark is drawn at the meshing position of the sector gear 2 and the pinion 9 through a marking pen, the pressing plate is detached after the whole tool is used, and the drill jig positioning plate 8 is taken down.
In this embodiment, the positioning hole is a long hole, and the front and rear hole walls of the long hole are in tangential fit with the output rotating shaft.
In this embodiment, the second positioning element is in clearance fit with the U-shaped opening, and in other embodiments, the second positioning element can be in fit with the oblong hole.
In this embodiment, the jig positioning piece is a diamond positioning pin and a cylindrical positioning pin to perform "centering" positioning installation on the jig positioning plate, the positioning reference is the axis of the transmission shaft positioning hole on the base, and the positioning purpose is to make the reference axis of the jig positioning plate coaxial with the axis of the transmission shaft positioning hole, i.e., "centering" is achieved. In the field of machining, a plurality of very conventional modes are available for realizing coaxial positioning between a plate with a determined axis and a hole with the determined axis, so in other embodiments, a diamond-shaped positioning pin is not adopted, two cylindrical positioning pins are adopted for installing and positioning a drill jig positioning plate, the two cylindrical positioning pins are respectively in clearance centering fit with a first positioning hole and a second positioning hole, and the distance between the axis of the cylindrical positioning pin and the axis of the drill jig is equal to the distance between the axis of the first installing hole and the axis of a transmission shaft positioning hole; or the drill jig positioning plate is integrally provided with two positioning shafts, the two positioning shafts are in clearance centering fit with the first positioning hole and the second positioning hole respectively, and the distance between the axis of the two positioning shafts and the axis of the drill jig is equal to the distance between the axis of the first mounting hole and the axis of the second mounting hole and the axis of the transmission shaft positioning hole. Or a concentric shaft or a concentric hole which is coaxial with the axis of the transmission shaft positioning hole can be arranged above the base, a corresponding hole or shaft (namely the position of the fabrication hole 18 in fig. 6) is arranged on the jig positioning plate, and the centering is realized through the 'shaft hole splicing fit'.
In the embodiment, four processing holes are arranged on the jig positioning plate, and in other embodiments, two jig positioning holes can be symmetrically arranged, but the fastening effect of the pinion and the crank arm welding is reduced.
In this embodiment, the input shaft positioning element is a positioning pin shaft, in other embodiments, the input shaft positioning element may be a positioning screw, and the flange positioning hole and the second positioning hole both have an internal thread in threaded fit with the positioning screw.
In this embodiment, the upper end face of the base is a supporting face, in other embodiments, a supporting step may be provided on the base, and the supporting face is formed by the step face attached to the sector gear and the pinion through the supporting step supporting transmission mechanism, but such an arrangement and processing is complicated.
In this embodiment, the axes of the first positioning element and the second positioning element are on the same straight line as the axes of the transmission shaft positioning hole, and in other embodiments, the axes of the first positioning element and the second positioning element may not be on the same straight line, but the design and manufacturing difficulty may be increased by such arrangement.
In this embodiment, a pressing mechanism is further disposed on the base, and the tool is pressed by the pressing mechanism, in other embodiments, the pressing mechanism may not be disposed on the base, and the tool is pressed by the pressing mechanism disposed on the assembly platform by fixing the base on the assembly platform.
Claims (7)
1. The utility model provides a high pressure exchanges isolator's drive mechanism's assembly fixture which characterized in that: the input shaft positioning piece can enable the axis of a flange positioning hole formed in the input shaft along the radial direction to form a set first included angle with a set tool reference plane; a transmission shaft positioning hole for a transmission shaft to penetrate downwards is formed in the right side of the input shaft positioning hole of the base; the drill jig positioning plate is provided with a set drill jig axis which is used for coaxially positioning with the axis of the transmission shaft, a processing hole which is used for drilling a hole which is communicated up and down on the crank arm and the gear and a positioning hole which is used for being in front and back stop fit with the output rotating shaft on the crank arm in the rotating direction are arranged on the drill jig positioning plate, the positioning hole is provided with a front hole wall and a back hole wall which are in tangent fit or matched fit with the output rotating shaft, the drill jig positioning plate is provided with a positioning plane which is coplanar with the axis of the drill jig, and the distance between the positioning plane and the front hole wall and the distance between the positioning plane and the back hole wall of the positioning hole are equal and equal to; the drilling jig positioning piece is used for positioning and assembling the drilling jig positioning plate so that the axis of the drilling jig is coaxial with the axis of the transmission shaft, and a set second included angle is formed between the positioning plane and a set tool reference plane.
2. The assembly fixture for the transmission mechanism of the high-voltage alternating-current isolating switch according to claim 1, characterized in that: the base is provided with a supporting surface for upwards supporting the sector gear and the pinion, and the supporting surface is the upper end surface of the base; the supporting surface is a plane, and the input shaft positioning hole and the transmission shaft positioning hole are vertical holes which are formed in the supporting surface and are perpendicular to the supporting surface.
3. The assembly fixture for the transmission mechanism of the high-voltage alternating-current isolating switch according to claim 1, characterized in that: the jig locating piece is including setting up the first, two cylinder locating pins that are located both sides around the transmission shaft locating hole on the base, be equipped with on the jig locating plate be used for with first locating hole of cylinder locating pin clearance centering complex and second locating hole, the axis of first, two cylinder locating pins is parallel with the axis of transmission shaft locating hole, just distance between the axis of first cylinder locating pin and the axis of transmission shaft locating hole equals with the distance between first locating hole axis and the jig axis, distance between the axis of second cylinder locating pin and the transmission shaft locating hole axis equals with the distance between the axis of second locating hole and the jig axis.
4. The assembly fixture for the transmission mechanism of the high-voltage alternating-current isolating switch according to claim 1, characterized in that: the drill jig positioning piece comprises cylindrical positioning pins and rhombic positioning pins which are arranged on the base and positioned at the front side and the rear side of the transmission shaft positioning hole; the drill jig positioning plate is provided with a first positioning hole and a U-shaped opening, the first positioning hole and the U-shaped opening are used for being in clearance centering fit with the cylindrical positioning pin and the diamond positioning pin respectively, the distance between the axis of the first positioning hole and the axis of the drill jig is equal to the distance between the axis of the cylindrical positioning pin and the axis of the transmission shaft positioning hole, the U-shaped opening is provided with a left side wall and a right side wall, the left side wall and the right side wall are used for being in blocking fit with the diamond positioning pin in the left-right direction, the symmetrical center line of the U-shaped opening, the axis of the first positioning hole and the axis of the transmission shaft positioning hole are located on the same plane, and the diamond positioning pin is in movable fit with the.
5. The assembly fixture for the transmission mechanism of the high-voltage alternating-current isolating switch according to claim 1, characterized in that: the jig positioning plate is provided with more than two processing holes, and the processing holes are uniformly and alternately arranged around the axis of the jig.
6. The assembly fixture for the transmission mechanism of the high-voltage alternating-current isolating switch according to any one of claims 1 to 5, characterized in that: the positioning hole is a long hole with the radial dimension in the left-right direction larger than that in the front-back direction, the positioning hole is matched with the output rotating shaft in a moving mode in the radial direction, the positioning hole is provided with a front hole wall and a rear hole wall which are oppositely arranged in the front-back direction, the front hole wall and the rear hole wall are used for being matched with the output rotating shaft in a tangent mode, and the inner wall surfaces of the front hole wall and the rear hole wall are matched with the output rotating shaft in a tangent mode.
7. The assembly fixture for the transmission mechanism of the high-voltage alternating-current isolating switch according to claim 1, characterized in that: be provided with on the base and be joining in marriage the hold-down mechanism that bores the in-process and weld dress and pinion and compress tightly to jig locating plate, turning arm, hold-down mechanism include with the clamp plate of base up end butt and with base fixed connection's bracing piece, the clamp plate has and hugs closely with jig locating plate up end in order to compress tightly the end that compresses tightly of jig locating plate, it has the U-shaped opening towards base the place ahead to compress tightly the end, the bracing piece passes the U-shaped opening to with compress tightly the end and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559798.8A CN109712835B (en) | 2018-12-19 | 2018-12-19 | Assembling tool for transmission mechanism of high-voltage alternating-current isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559798.8A CN109712835B (en) | 2018-12-19 | 2018-12-19 | Assembling tool for transmission mechanism of high-voltage alternating-current isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109712835A CN109712835A (en) | 2019-05-03 |
| CN109712835B true CN109712835B (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811559798.8A Active CN109712835B (en) | 2018-12-19 | 2018-12-19 | Assembling tool for transmission mechanism of high-voltage alternating-current isolating switch |
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| Country | Link |
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| CN (1) | CN109712835B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035610A (en) * | 2019-12-09 | 2021-06-25 | 河南平高电气股份有限公司 | Single-pole assembly tool for isolating switch |
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| CN104332337A (en) * | 2014-06-27 | 2015-02-04 | 国家电网公司 | Scissors type high-voltage isolating switch assembling tool |
| CN204230111U (en) * | 2014-06-06 | 2015-03-25 | 国家电网公司 | Drill tooling joined by earthed switch |
| CN206864354U (en) * | 2017-06-30 | 2018-01-09 | 厦门理工学院 | Moving contact of breaker axle riveting set |
| CN207572286U (en) * | 2017-11-01 | 2018-07-03 | 上海思源高压开关有限公司 | A kind of positioning tool for being used to control switchgear moving contact separating brake initial position |
| CN108890239A (en) * | 2018-06-05 | 2018-11-27 | 河南平高电气股份有限公司 | Disconnecting switch shaft is welded the assembly tooling with connecting lever |
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2018
- 2018-12-19 CN CN201811559798.8A patent/CN109712835B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393213Y (en) * | 1999-10-15 | 2000-08-23 | 华一精密机械(深圳)有限公司 | Key-cap balancing-rod combination device |
| CN204230111U (en) * | 2014-06-06 | 2015-03-25 | 国家电网公司 | Drill tooling joined by earthed switch |
| CN104332337A (en) * | 2014-06-27 | 2015-02-04 | 国家电网公司 | Scissors type high-voltage isolating switch assembling tool |
| CN206864354U (en) * | 2017-06-30 | 2018-01-09 | 厦门理工学院 | Moving contact of breaker axle riveting set |
| CN207572286U (en) * | 2017-11-01 | 2018-07-03 | 上海思源高压开关有限公司 | A kind of positioning tool for being used to control switchgear moving contact separating brake initial position |
| CN108890239A (en) * | 2018-06-05 | 2018-11-27 | 河南平高电气股份有限公司 | Disconnecting switch shaft is welded the assembly tooling with connecting lever |
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| Publication number | Publication date |
|---|---|
| CN109712835A (en) | 2019-05-03 |
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