CN112802705B - Earthing switch operation axle construction - Google Patents
Earthing switch operation axle construction Download PDFInfo
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- CN112802705B CN112802705B CN202110117647.2A CN202110117647A CN112802705B CN 112802705 B CN112802705 B CN 112802705B CN 202110117647 A CN202110117647 A CN 202110117647A CN 112802705 B CN112802705 B CN 112802705B
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- shaft
- limiting
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- hole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
Abstract
The invention discloses an earthing switch operating shaft structure. The problems of more parts of an operating shaft of the grounding switch, complex structure of the parts, inconvenience in mounting and dismounting, high manufacturing difficulty and high cost in the prior art are solved. The structure includes the operation axle, connect the connecting lever subassembly in the operation epaxial, the operation axle rear end passes through fixed establishment to be connected on the cabinet body, the operation axle front end passes through stop gear and connects on the cabinet body, stop gear is including fixing the supporting seat on the cabinet body, the operation axle front end passes the supporting seat and rotates with the supporting seat and links to each other, is fixed with the limiting plate on the operation axle front end, the limiting plate includes bellied spacing head, set up its pivoted spacing post of restriction on the supporting seat is surperficial on spacing head pivoted route. The limiting mechanism of the grounding switch operating shaft is formed by the supporting seat and the limiting plate, required parts are few, compared with the prior art, the grounding switch operating shaft does not need to be provided with a plurality of interlocking pieces, and the supporting seat and the limiting plate are simple in structure, simple to manufacture, low in cost and more convenient to install.
Description
Technical Field
The invention relates to the technical field of switch equipment, in particular to an operating shaft structure of a grounding switch.
Background
The grounding switch operating shaft in the armored high-voltage equipment and the five-prevention interlocking is arranged in the armored metal closed switch cabinet, the function of the grounding switch operating shaft is very important, the grounding switch operating shaft in the five-prevention interlocking of the existing KYN28-12 series armored metal switch equipment is arranged on the right side of the switch cabinet, and the operating shaft is eccentrically fixed, so that the weight distribution is uneven, and the problems of connection looseness and the like can be caused in the long-term use process. In addition, the existing earthing switch has the defects of more parts of an operating shaft, complex structure of the parts, inconvenient installation and disassembly, high manufacturing difficulty and cost increase, and because the parts have different use functions and different installation angles, the phenomena of wrong installation and neglected installation are not very easy to occur slightly, and the assembly and disassembly must be completed in a cabinet, so that great inconvenience is brought to installation and maintenance personnel.
Disclosure of Invention
The invention mainly solves the problems of more parts of an operating shaft of a grounding switch, complex structure of parts, inconvenient assembly and disassembly, high manufacturing difficulty and high cost in the prior art, and provides the operating shaft structure of the grounding switch.
The invention also solves the problems that the installation structure of the grounding switch operating shaft is unreasonable, the weight distribution is uneven due to eccentric installation, and the connection is likely to be loosened in the long-term use process in the prior art, and provides the grounding switch operating shaft structure.
The technical problem of the invention is mainly solved by the following technical scheme: the utility model provides a earthing switch operation axle construction, including the operation axle, connect the turning arm subassembly on the operation axle, the operation axle rear end passes through fixed establishment and connects on the cabinet body, the operation axle front end passes through stop gear and connects on the cabinet body, stop gear is including fixing the supporting seat on the cabinet body, the operation axle front end passes the supporting seat and rotates with the supporting seat and link to each other, be fixed with the limiting plate on the operation axle front end, the limiting plate includes bellied spacing head, set up its pivoted spacing post of restriction on the supporting seat is surperficial on spacing head pivoted route. The grounding switch comprises a support seat and a limiting plate, wherein the support seat is provided with two limiting posts on the surface, the limiting plate is provided with a limiting head, the limiting plate rotates along with the operating shaft, the two limiting posts are respectively positioned at two positions on the rotating path of the limiting head, a limiting area for the limiting head to rotate is formed between the two limiting posts, the limiting head can only rotate in the limiting area, when the limiting head rotates to one limiting post at one end, the grounding switch rotates in place, the grounding switch is in an on or off state and rotates towards the other direction, the limiting heads rotate to the limiting posts at the two ends, and the grounding switch is in an off or on state. The invention needs less parts, does not need to be provided with a plurality of interlocking pieces compared with the prior art, and has the advantages of simple structure of the supporting seat and the limiting plate, simple manufacture, cost reduction and more convenient installation.
As a preferable scheme, the supporting seat comprises a connecting through hole arranged at the center, two limiting columns are arranged on the surface of the supporting seat along the circumference by taking the connecting through hole as the center, and a circumferential path between the two limiting columns forms a limiting head rotating area. Supporting seat is used for supporting the operating axis in this scheme, and the both sides of supporting seat are provided with the connecting hole respectively, and the supporting seat both sides meet with the cabinet body, twists the connecting hole through the bolt, fixes the supporting seat on the cabinet body. The front end of the operating shaft is inserted into the connecting through hole, penetrates out of the connecting through hole, and the penetrating part is used for being connected with the limiting plate. Two limiting columns are arranged on the surface, opposite to the limiting plate, of the supporting seat, and the two limiting columns are located on a rotating path of the limiting head of the limiting plate to limit rotation of the operating shaft. This scheme plays limiting displacement's supporting seat and just sets up two spacing posts on the body, compares among the prior art supporting seat's structure simpler, and the preparation is more convenient, the cost is reduced.
As a preferred scheme, the limiting plate comprises a fixing sleeve, the side face of the fixing sleeve protrudes to form the limiting head, two sides of the limiting head are respectively provided with a buckle head, the fixing sleeve is fixedly connected to the front end of the operating shaft, and the limiting head is located in a rotating area between two limiting columns. The fixed cover of this scheme is circular form, is provided with the fixed orifices at fixed cover center, and this fixed orifices shape is unanimous with operating shaft front end shape, and operating shaft front end divide into the hexagon cylinder in this scheme, and the fixed orifices is assorted hexagon hole, and fixed cover embolias on the operating shaft front end and be close to the supporting seat surface, and the spacing head is located rotates the region intra-area, rotates and receives two spacing post restrictions. The two sides of the limiting head are respectively provided with a buckle head, and when the operating shaft rotates to the opening or closing position, the buckle heads are abutted against the limiting column.
As an optimal scheme, a limiting pressure plate is arranged on the limiting plate, a through hole is formed in the limiting pressure plate, the limiting pressure plate is sleeved at the front end of the operating shaft through the through hole and located at the front portion of the limiting plate, one end of the limiting pressure plate is connected with a connecting seat, and the connecting seat is fixed on the cabinet body. Spacing clamp plate embolias the operating axis front end and supports on the limiting plate in this scheme, plays limiting displacement to the limiting plate, prevents that the limiting plate from moving on the operating axis, and the connecting seat is connected in one side of spacing clamp plate, and the connecting seat passes through the bolt regulation on the cabinet body.
As a preferred scheme, still be provided with operation protection mechanism in operation axle front end department, operation protection mechanism includes the operation slide, and sliding connection is on the cabinet body about the operation slide, and the operation slide upper end links to each other with the cabinet body through the extension spring, and the operation hole has been seted up on the operation slide surface spacing overhead orientation operation slide direction arch is formed with the linkage head, is provided with spacing curved edge on an operation slide side, spacing curved edge is located linkage head rotation path, and when spacing first butt was on the spacing post of operation axle branch state, the linkage head butt was on spacing curved edge, and the operation hole is just to the operation axle front end. Operation protection mechanism shelters from when earthing switch is in the branch state in this scheme, prevents the maloperation. When earthing switch is in the closure state, the limiting plate rotated this moment, and spacing head supports on the spacing post of lower part, and the linkage head then pushes down on spacing bent edge, and spacing bent edge keeps the downward slip state by limiting displacement board limiting displacement, and the operating hole aligns the operating axis front end to in the user operates. The upper end of the operation sliding plate is connected with a tension spring to keep an upward pulling state, and the limiting bent edge of the operation sliding plate is positioned at the position flush with the lower edge of the operation hole. The spacing head of limiting plate rotates until supporting at the spacing post in upper portion, and earthing switch is in the detached state, operates slide upward movement under the extension spring effect, and until spacing bent edge butt on the linkage head, the handle hole also shifts up at this in-process, staggers the operating axis front end, and the operating slide forms the sheltering from to the operating axis voluntarily, prevents to carry out maloperation under the electrified condition. The limiting head is rotated until the limiting head abuts against the lower limiting column, the grounding switch is in a combined state, the linkage head rotates together in the downward rotating process of the limiting head, the linkage head pushes the limiting bent edge to move downwards to drive the operation sliding plate to move downwards, and the operation hole moves to the front of the operation shaft.
As a preferred scheme, the upper side and the lower side of the surface of the operation sliding plate are respectively provided with an upper sliding groove and a lower sliding groove along the vertical direction, guide blocks are respectively embedded in the upper sliding groove and the lower sliding groove, the guide blocks are fixed on the cabinet body, clamping edges are arranged on two sides of each guide block, and the clamping edges are clamped on the bottom surface of the operation sliding plate. Operation slide sliding connection is provided with spout and lower spout respectively on the axis on the operation slide surface in this scheme on the cabinet body, goes up the spout and is located the operation slide upside, goes up the spout lower extreme and communicates with the handle hole, and the lower spout is located the operation slide downside, and lower spout lower extreme opening is on the lower part edge of operation slide, can peg graft on two guide blocks from top to bottom during the operation slide installation, has made things convenient for the installation of operation slide. The guide block is rectangular shape, and the width is unanimous with last spout, lower spout width, and the guide block both sides are provided with the card edge, and the guide block embedding is in the spout, and the card edge then blocks on spout both sides operation slide bottom surface, plays limiting displacement to the operation slide.
As a preferred scheme, one side of the upper part of the operation sliding plate is bent to form a connecting plate, a connecting strip is fixedly arranged on the connecting plate, the upper end of the connecting strip is connected with the lower end of a tension spring, the upper end of the tension spring is fixed on a cabinet body, a guide groove is formed in the connecting strip, a guide rod is arranged on the cabinet body, and the guide rod penetrates into the guide groove. In the scheme, the tension spring is connected to the upper part of the operation sliding plate through the connecting strip, and the connecting strip plays a role in moving and guiding through the guide groove and the guide rod. The tension spring pulls the operation sliding plate through the connecting strip.
Preferably, the fixing mechanism comprises a U-shaped rear support plate, a U-shaped fixing support and a support plate, the support plate is arranged in an opening of the rear support plate, the end, where the opening of the rear support plate is located, of the support plate is arranged in the opening of the fixing support, the bottom of the fixing support is fixedly connected to the cabinet body, and the rear end of the operating shaft penetrates and is connected to the bottom of the rear support plate and the support plate. Fixing bracket through the U-shaped in this scheme fixes the backseat board, backseat board opening one end is inserted and is fixed in the fixing bracket opening, backseat board and fixing bracket are located the equidirectional, the operating axis rear end penetrates in the middle of the backseat board bottom, fixed establishment overall structure symmetry for weight distribution is even, the atress is even after the fixed establishment installation, it is more firm to compare among the prior art fixed establishment adoption side-mounting fixed knot structure, the more difficult crooked and uneven problem of atress that takes place. In addition, the fixed part of the fixed support and the cabinet body is the bottom in front of the operating shaft, and a mounting plate is not required to be arranged on the side face, so that the mounting space of the fixing mechanism is smaller, and the structure can be more compact. Bolt holes are respectively arranged on two side surfaces of an opening of the rear support plate, bolt holes are correspondingly arranged on two side surfaces of an opening of the fixing support, threaded holes are correspondingly arranged on the upper side surface and the lower side surface of the support plate, and bolts penetrate through the bolt holes in the rear support plate and the fixing support and then are connected in the threaded holes in the support plate to fix the rear support plate, the fixing support and the support plate together. The bottom surface of the fixed bracket is provided with a bolt hole, and the fixed bracket is fixed on the cabinet body through the bolt.
As a preferred scheme, a sector plate is arranged at the rear end of the operating shaft, a limiting rod penetrates through the supporting plate, the front end of the limiting rod protrudes out of the supporting plate and is located on a path of rotation of the sector plate, the rear end of the limiting rod penetrates out of the bottom of the rear base plate, a clamping pin is arranged at the rear end of the limiting rod, a spring is arranged on the limiting rod, one end of the spring abuts against the front end of the limiting rod, the other end of the spring abuts against the bottom of the rear base plate, an operating window is formed in the bottom of the fixing support, an unlocking mechanism interactive with the sector plate is arranged in the operating window, and the unlocking mechanism abuts against the limiting rod. Sector plate connection is located in the fixed bolster cavity at the operating axis rear end in this scheme, and sector plate forms spacingly to the operating axis, prevents that the operating axis from deviating from backseat board and backup pad. The front end of the limiting rod is positioned on the rotating path of the sector plate to limit the rotation of the sector plate, and the sector plate and the operating shaft rotate synchronously, namely the operating shaft rotates to form limit. The unlocking mechanism is fixed on the back cabinet door, the unlocking mechanism penetrates through the operation window and forms operation with the limiting rod, and the unlocking mechanism pushes the limiting rod to realize the unlocking of the rotation limiting of the operation shaft.
As a preferable scheme, the operating shaft comprises a first shaft body and a second shaft body, one end of the first shaft body is connected with a limiting mechanism, a semicircular first half shaft is arranged at the other end of the first shaft body, one end of the second shaft body is connected with a fixing mechanism, a second half shaft which is complementary with the first half shaft is arranged at the other end of the second shaft body, the first half shaft and the second half shaft are spliced and fixed through bolts, the length of the first half shaft is smaller than that of the second half shaft, a clamping groove is formed between the front end of the first half shaft and the end of the second shaft body, the crank arm assembly is connected to the clamping groove, and a fixed shaft sleeve is sleeved on the root of the first half shaft and the front end of the second half shaft. The operating shaft is composed of the first shaft body and the second shaft body in a spliced mode, the first half shaft and the second half shaft which are complementary in shape are spliced into a circular shaft shape and fixed, the manufacturing difficulty of the operating shaft is reduced by the aid of the two sections of structures, and the operating shaft is more convenient to disassemble, assemble and maintain. The fixed shaft sleeve is sleeved on the first half shaft and the second half shaft, so that the first half shaft and the second half shaft are spliced more tightly and are not easy to separate.
As a preferred scheme, the crank arm assembly comprises a crank arm and a linkage rod connected to the crank arm, wherein one end of the crank arm is provided with an inserting part, the surface of the inserting part is provided with a sleeve edge along the edge, an inserting groove is formed in the sleeve edge, a semicircular shaft hole is formed in the inserting part, one half part of the inserting groove corresponding to the shaft hole is a semicircular groove, the other half part of the inserting groove corresponding to the surface of the inserting part is a polygonal groove, the second half shaft penetrates through the shaft hole and the semicircular groove, the front end of the first half shaft is provided with a clamping head matched with the polygonal groove in shape, the clamping head is inserted into the polygonal groove, the inserting part is clamped on the clamping groove, the sleeve is provided with a mounting hole along the corresponding polygonal groove, the clamping head and the second half shaft are provided with corresponding screw holes, and the inserting part, the first half shaft and the second half shaft are fixed through bolts.
Half part of grafting groove is the semicircular groove in this scheme, and half part is multilateral groove, and semicircular groove shape and semicircular shaft hole shape phase-match, semicircular groove surface and shaft hole surfacing are excessively connected, and the second semi-axis passes shaft hole and semicircular groove and inserts on turning arm grafting portion, knows that grafting portion supports on second axle body front end. The polygonal groove adopts a half internal hexagonal structure, the clamping heads are of corresponding half hexagonal structures, the length of each clamping head is the same as the depth of the polygonal groove, when the first half shaft is matched with the inserting part, the clamping heads are inserted into the polygonal groove, and the first half shaft and the second half shaft are spliced into a whole circular shaft. The bolt is screwed into the fixing hole and connected into the screw holes of the first half shaft chuck and the second half shaft, the inserting part, the first half shaft and the second half shaft are fixed together, and in addition, the screw holes are also formed in the first half shaft and the second half shaft and are also connected and fixed through the bolt. The crank arm inserting part is inserted into the second half shaft through the shaft hole until the first half shaft and the second half shaft are spliced, and the inserting part is just positioned in a clamping groove formed between the end parts of the first half shaft and the second half shaft, so that the crank arm cannot be separated from the second half shaft. The other end of the crank arm is hinged with the linkage rod. The structure of operation axle amalgamation makes the connecting lever only need peg graft with the second axle body, has made things convenient for the installation of connecting lever subassembly, also makes the installation of connecting lever subassembly more firm simultaneously. The sleeve edge is arranged in the scheme, the sleeve edge forms an insertion groove, the insertion groove and the first half shaft connecting part are polygonal grooves, the front end of the first half shaft is also provided with a clamping head with the shape matched with the shape, and the first half shaft and the shaft sleeve form clamping connection. Therefore, when the operating shaft is rotated, the inserting part of the crank arm can also drive the first half shaft to rotate instead of only relying on the bolt for connecting the first half shaft and the second half shaft to drive the first half shaft to rotate, so that the pressure on the bolt is reduced, the bolt cannot be damaged, and the problem that the operation is not tightly influenced by the fit of the first half shaft and the second half shaft due to the looseness of the bolt is avoided.
Therefore, the invention has the advantages that:
1. adopt supporting seat, limiting plate to constitute the stop gear of earthing switch operating axis, required spare part is few, compares prior art and need not to set up a plurality of interlocking pieces, and supporting seat, limiting plate simple structure make simply reduce cost, and it is more convenient to install.
2. The whole structure of the fixing mechanism is symmetrical, so that the weight is uniformly distributed, the stress is uniform after the fixing mechanism is installed, and compared with the structure which is fixedly installed on one side of the fixing mechanism in the prior art, the fixing mechanism is more stable and is less prone to the problems of deflection and non-uniform stress.
3. The operating shaft is formed by splicing a first shaft body and a second shaft body, and a first half shaft and a second half shaft which are complementary in shape are spliced into a circular shaft shape and fixed, so that the manufacturing difficulty of the operating shaft is reduced by two sections of structures, and the operating shaft is more convenient to disassemble, assemble and maintain.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a stop mechanism according to the present invention;
FIG. 3 is a schematic view of a support base according to the present invention;
FIG. 4 is a schematic diagram of a limiting plate according to the present invention;
FIG. 5 is a schematic view of one embodiment of the securing mechanism of the present invention;
FIG. 6 is a schematic view of an arrangement of the operating shaft and crank arm assembly of the present invention;
FIG. 7 is a schematic view of the construction of the operation shaft joint of the present invention;
FIG. 8 is a schematic view of a crank arm according to the present invention;
FIG. 9 is a schematic view of a guide block according to the present invention
FIG. 10 is a schematic view of a second construction of the present invention for connecting the operating shaft to the crank arm assembly
FIG. 11 is a schematic view of a second construction of the split joint of the operating shaft of the present invention;
fig. 12 is a second construction of the crank arm of the present invention.
1-an operating shaft 2-a supporting seat 3-a limiting plate 4-a limiting head 5-a limiting column 6-a connecting through hole 7-a fixing sleeve 8-a buckle 9-an operating sliding plate 10-a tension spring 11-an operating hole 12-a linkage head 13-a limiting bent edge 14-an upper sliding groove 15-a lower sliding groove 17-a guide block 18-a clamping edge 19-a connecting plate 20-a connecting strip 21-a tension spring 22-a guide groove 23-a rear support plate 24-a fixing support 25-a supporting plate 26-a sector plate 27-a limiting rod 28-an operating window 29-a first shaft body 30-a second shaft body 31-a first half shaft 32-a second half shaft 33-a clamping groove 34-a fixing shaft sleeve 35-a crank arm 36-a linkage rod 37-an inserting part 38-a shaft hole 39-a limiting pressing plate 40-a connecting seat 41-a perforation 42-a clamping head 43-a clamping head edge 44-a mounting hole.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
the utility model provides a earthing switch operation axle construction, as shown in figure 1, including operation axle 1, connect the epaxial crank arm subassembly of operation, the operation axle rear end passes through fixed establishment to be connected on the cabinet body, and the operation axle front end passes through stop gear to be connected on the cabinet body. As shown in fig. 2, the limiting mechanism comprises a supporting seat 2 fixed on the cabinet body, the front end of an operating shaft 1 penetrates through the supporting seat and is connected with the supporting seat in a rotating mode, a limiting plate 3 is fixed to the front end of the operating shaft and comprises a raised limiting head 4, and a limiting column 5 for limiting the rotation of the supporting seat is arranged on the surface of the supporting seat on a rotating path of the limiting head.
Specifically, as shown in fig. 3, the supporting seat is a square body, the supporting seat includes a connecting through hole 6 arranged at the center, two limiting posts 5 are arranged on the surface of the supporting seat along the circumference by using the connecting through hole as the center, one limiting post is arranged at the upper part, the other limiting post is arranged at the lower part, and a circumferential path between the two limiting posts forms a limiting head rotating area. The both sides of supporting seat are provided with two connecting holes respectively, and the supporting seat both sides are linked with the cabinet body mutually, twist the connecting hole through the bolt, fix the supporting seat on the cabinet body. As shown in fig. 4, the limiting plate 3 includes a circular fixing sleeve 7, a fitting hole is formed in the center of the fixing sleeve, the front end of the operating shaft is a hexagonal cylinder, and the fitting hole is a corresponding hexagonal hole. The side surface of the fixing sleeve is convexly provided with a limiting head 4, the fixing sleeve is sleeved on the front end of the operating shaft and is close to the surface of the supporting seat, and the limiting head is positioned in the rotating area and is limited by two limiting columns in rotation. The two sides of the limiting head are respectively provided with a buckle head 12 which is abutted against the limiting column when the operating shaft rotates to the opening or closing position. The limiting plate is provided with a limiting pressing plate 39, a through hole 41 is formed in the limiting pressing plate, the limiting pressing plate is sleeved at the front end of the operating shaft 1 through the through hole and located at the front portion of the limiting plate, one end of the limiting pressing plate is connected with a connecting seat 40, and the connecting seat is fixed on the cabinet body.
Still be provided with operation protection mechanism in operation axle front end department, operation protection mechanism includes operation slide 9, sliding connection is on the cabinet body about the operation slide, the operation slide includes the side of both sides buckling, wherein one side upper portion inwards buckles and is formed with connecting plate 19, fixed connection strip 20 on the connecting plate, the connecting strip upper end is connected with extension spring 21 lower extreme, the extension spring upper end is fixed on the cabinet body, be provided with guide way 22 on the connecting strip, be provided with the guide bar on the cabinet body, the guide bar penetrates in the guide way. The surface of the operation sliding plate is provided with an operation hole 11, as shown in fig. 4, the upper part of the limit head 4 is convexly provided with a linkage head 12 towards the direction of the operation sliding plate, the lower part of one side surface of the operation sliding plate is provided with an extension plate extending towards the direction of the operation shaft, the upper end of the extension plate is bent outwards to form a limit bent edge 13, and a reinforcing rib is arranged between the bottom surface of the limit bent edge and the side surface of the operation sliding plate for higher strength of the limit bent edge. The limiting bent edge is positioned on a rotating path of the linkage head, when the limiting head abuts against the limiting column in the operating shaft state, the linkage head abuts against the limiting bent edge, and the operating hole is opposite to the front end of the operating shaft. The upper side and the lower side of the surface of the operation sliding plate 9 are respectively provided with an upper sliding chute 14 and a lower sliding chute 15 along the vertical direction, the lower end of the upper sliding chute is communicated with the operation hole, and the lower end of the lower sliding chute is opened on the edge of the lower part of the operation sliding plate. The upper chute and the lower chute are respectively embedded with a guide block 16, as shown in fig. 9, the guide block is provided with a fixing hole, the guide block is fixed on the cabinet body through a bolt, the two sides of the guide block are provided with clamping edges 18, and the clamping edges are clamped on the bottom surface of the operation sliding plate after the guide block is embedded into the chute. When the operation sliding plate is installed, the upper sliding groove and the lower sliding groove are respectively inserted into the two guide blocks from top to bottom, and the installation is convenient. During the operation, rotate the spacing head of limiting plate until supporting at the spacing post in upper portion, earthing switch is in the detached state, operates slide rebound under the extension spring effect, and until spacing bend along the butt on the linkage is overhead, the handle hole also shifts up at this in-process, staggers the operating axis front end, and the operating slide is automatic to the operating axis formation shelter from, prevents to carry out the maloperation under the high-voltage board live working condition. The limiting head is rotated until the limiting head abuts against the lower limiting column, the grounding switch is in a combined state, the linkage head rotates together in the downward rotating process of the limiting head, the linkage head pushes the limiting bent edge to move downwards to drive the operation sliding plate to move downwards, the operation hole moves to the front of the operation shaft, and an operator can operate the grounding switch conveniently.
As shown in fig. 5, the fixing mechanism includes a U-shaped rear support plate 23, a U-shaped fixing support 24 and a U-shaped support plate 25, the support plate is arranged in the opening of the rear support plate, the end of the opening of the rear support plate is arranged in the opening of the fixing support, bolt holes are respectively arranged on two side faces of the opening of the rear support plate, bolt holes are correspondingly arranged on two side faces of the opening of the fixing support, threaded holes are correspondingly arranged on the two side faces of the support plate, bolts penetrate through the rear support plate and are connected in the threaded holes of the support plate after passing through the bolt holes on the fixing support, and the rear support plate, the fixing support and the support plate are fixed together. An operation window 28 is arranged on the bottom of the fixed support, fixing holes are respectively arranged on the upper part and the lower part of the operation window, and the fixed support is fixedly connected on the cabinet body through bolts. The rear support plate is provided with a rotating hole, the supporting plate is also provided with a rotating hole, and the rear end of the operating shaft penetrates and is connected to the bottom of the rear support plate and the supporting plate. Be provided with sector plate 26 on the operating axis rear end, run through being provided with gag lever post 27 in the backup pad, the gag lever post front end protrusion is outside the backup pad and is located in sector plate pivoted route, back bedplate 23 bottom is worn out to the gag lever post rear end, be provided with the bayonet lock on the gag lever post rear end, be provided with the spring on the gag lever post, spring one end top is at the gag lever post front end, the spring other end top is on back bedplate bottom, be provided with the release mechanism with sector plate interdynamic in the operating window, release mechanism pushes up on the gag lever post. The unlocking mechanism penetrates through the operation window to form operation with the limiting rod, and pushes the limiting rod to realize the unlocking of the rotation limiting of the operation shaft.
As shown in fig. 6 and 7, the operating shaft 1 includes a first shaft body 29 and a second shaft body 30, one end of the first shaft body is connected with a limiting mechanism, the other end of the first shaft body is provided with a semicircular first half shaft 31, one end of the second shaft body is connected with a fixing mechanism, the other end of the second shaft body is provided with a second half shaft 32 which is complementary with the first half shaft, the first half shaft and the second half shaft are spliced and fixed through bolts, the length of the first half shaft is smaller than that of the second half shaft, a clamping groove 33 is formed between the front end of the first half shaft and the end of the second shaft body, a crank arm assembly is connected to the clamping groove, and a fixing shaft sleeve 34 is sleeved on the root of the first half shaft and the front end of the second half shaft. As shown in fig. 8, the crank arm assembly includes a crank arm 35 and a linkage rod 36 connected to the crank arm, wherein one end of the crank arm has an insertion part 37, a semicircular shaft hole 38 is formed on the insertion part, the second half shaft is inserted into the shaft hole, the front end of the first half shaft abuts against the insertion part, and the insertion part is clamped in the clamping groove.
As shown in fig. 10 and 11, a second structure of connecting the crank arm assembly and the operating shaft is provided, compared with the first structure, a sleeve edge 43 is arranged on the surface of the crank arm insertion part along the edge, as shown in fig. 12, an insertion groove is formed in the sleeve edge, a semicircular shaft hole 38 is formed in the insertion part, a half part of the insertion groove corresponding to the shaft hole is a semicircular groove, the shape of the semicircular groove is matched with that of the semicircular shaft hole, and the surface of the semicircular groove is in smooth transition connection with the surface of the shaft hole. The other half part of the insertion groove corresponding to the surface of the insertion part is a polygonal groove, and a preferred polygonal groove is of a half internal hexagonal structure. The second half shaft is inserted into the shaft hole and penetrates through the semicircular groove until the front end of the second shaft body abuts against the inserting part, and the second half shaft is inserted in place. The second half shaft is of a semicircular structure and matched with the shaft hole and the semicircular groove in shape, and the second half shaft is tightly matched with the shaft hole and the semicircular groove after being spliced together. The front end of the first half shaft is provided with a clamping head 42 matched with the shape of the polygonal groove, the clamping head is of a half hexagonal structure, the length of the clamping head is the same as the depth of the polygonal groove, when the first half shaft is matched with the inserting part, the clamping head is inserted into the polygonal groove, the front end of the clamping head abuts against the surface of the inserting part at the bottom of the polygonal groove, the joint of the first half shaft and the clamping head abuts against the surface of the sleeve edge, and when the first half shaft is inserted in place, the front end of the second half shaft abuts against the end face of the first shaft body. The sleeve is provided with a mounting hole 44 along the corresponding polygonal groove, the chuck and the second half shaft are provided with corresponding screw holes, and the insertion part, the first half shaft and the second half shaft are fixed through bolts. The first half shaft is also provided with a screw hole close to the first shaft body, the second half shaft is correspondingly provided with a screw hole, and the first half shaft and the second half shaft are fixed through bolts. The structure of this scheme of adoption, when rotating the operating axis, the second semi-axis passes through the draw-in groove and drives the connecting lever rotation, the inserting groove rotation can drive first semi-axis and rotate on the connecting lever, the rotation of first semi-axis not only relies on the bolt of connecting first semi-axis and second semi-axis to drive like this, the shearing force to the bolt has been reduced to rotate like this, be difficult to cause the damage to the bolt in the long-term use, it is inseparable to avoid the bolt not hard up to lead to first semi-axis and the cooperation of second semi-axis, the problem of influence operation.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms operating shaft, support seat, limit plate, limit head, limit post, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (9)
1. The utility model provides a earthing switch operation axle construction, includes the operation axle, connects the turning arm subassembly on the operation axle, and the operation axle rear end is passed through fixed establishment and is connected on the cabinet body, and the operation axle front end passes through stop gear and connects its characterized in that on the cabinet body: the limiting mechanism comprises a supporting seat (2) fixed on the cabinet body, the front end of an operating shaft (1) penetrates through the supporting seat and is rotationally connected with the supporting seat, a limiting plate (3) is fixed at the front end of the operating shaft, the limiting plate comprises a raised limiting head (4), and a limiting column (5) for limiting the rotation of the limiting head is arranged on the surface of the supporting seat on the rotating path of the limiting head; limiting plate (3) are including fixed cover (7), and the protruding formation in fixed cover side limiting head (4) still are provided with operation protection mechanism at operation axle (1) front end department, operation protection mechanism includes operation slide (9), and sliding connection is on the cabinet body about the operation slide, and the operation slide upper end links to each other with the cabinet body through extension spring (10), and operation hole (11) have been seted up on the operation slide surface limiting head (4) upper portion is formed with linkage head (12) towards the operation slide direction arch, is provided with spacing curved edge (13) on operation slide side, spacing curved edge is located linkage head rotation path, and when spacing first butt was on the spacing post of operation axle branch state, the linkage head butt was on spacing curved edge, and the operation hole is just to the operation axle front end.
2. An earthing switch operating shaft structure according to claim 1, characterized in that said supporting base (2) includes a centrally disposed connecting through-hole (6), and two of said limit posts (5) are circumferentially disposed on the supporting base surface centered on the connecting through-hole, the circumferential path between the two limit posts forming a limit head rotation area.
3. The earthing switch operating shaft structure of claim 2, wherein said limiting head is provided with a fastening head (8) on each side, the fixing sleeve is fixedly connected to the front end of the operating shaft (1), and the limiting head is located in the rotating area between the two limiting posts.
4. The operating shaft structure of the grounding switch according to claim 3, wherein the limiting plate (3) is provided with a limiting pressing plate (39), the limiting pressing plate is provided with a through hole (41), the limiting pressing plate is sleeved at the front end of the operating shaft (1) through the through hole and is positioned at the front part of the limiting plate, one end of the limiting pressing plate is connected with a connecting seat (40), and the connecting seat is fixed on the cabinet body.
5. The earthing switch operating shaft structure according to claim 4, characterized in that the upper and lower sides of the operating slide plate (9) are respectively provided with an upper chute (14) and a lower chute (15) along the vertical direction, guide blocks (16) are respectively embedded in the upper chute and the lower chute, the guide blocks are fixed on the cabinet body, and clamping edges (18) are arranged at two sides of the guide blocks and clamped on the bottom surface of the operating slide plate.
6. An earthing switch operating shaft structure according to claim 1, characterized in that the fixing mechanism comprises a U-shaped back support plate (23), a U-shaped fixing bracket (24) and a support plate (25), the support plate is arranged in the back support plate opening, the end of the back support plate opening is arranged in the fixing bracket opening, the bottom of the fixing bracket is fixedly connected to the cabinet body, and the rear end of the operating shaft (1) is penetratingly connected to the bottom of the back support plate and the support plate.
7. An earthing switch operating shaft structure according to claim 6, characterized in that a sector plate (26) is arranged at the rear end of the operating shaft, a limiting rod (27) is arranged on the supporting plate in a penetrating manner, the front end of the limiting rod protrudes out of the supporting plate and is positioned on the rotating path of the sector plate, the rear end of the limiting rod penetrates out of the bottom of the rear seat plate (23), a bayonet lock is arranged at the rear end of the limiting rod, a spring is arranged on the limiting rod, one end of the spring abuts against the front end of the limiting rod, the other end of the spring abuts against the bottom of the rear seat plate, an operating window (28) is arranged at the bottom of the fixed support, an unlocking mechanism interacting with the sector plate is arranged in the operating window, and the unlocking mechanism abuts against the limiting rod.
8. The earthing switch operating shaft structure of claim 1, characterized in that the operating shaft (1) comprises a first shaft body (29) and a second shaft body (30), one end of the first shaft body is connected with a limiting mechanism, the other end of the first shaft body is provided with a semicircular first half shaft (31), one end of the second shaft body is connected with a fixing mechanism, the other end of the second shaft body is provided with a second half shaft (32) complementary to the first half shaft, the first half shaft and the second half shaft are spliced and fixed through bolts, the length of the first half shaft is smaller than that of the second half shaft, a clamping groove (33) is formed between the front end of the first half shaft and the end of the second shaft body, the crank arm assembly is connected to the clamping groove, and a fixing shaft sleeve (34) is sleeved on the root of the first half shaft and the front end of the second half shaft.
9. The earthing switch operating shaft structure of claim 8, wherein the crank arm assembly comprises a crank arm (35) and a linkage rod (36) connected to the crank arm, the crank arm has a plug portion (37) at one end, a sleeve edge (43) is arranged on the surface of the plug portion along the edge, a plug groove is formed in the sleeve edge, a semicircular shaft hole (38) is formed in the plug portion, a half portion of the plug groove corresponding to the shaft hole is a semicircular groove, the other half portion of the plug groove corresponding to the surface of the plug portion is a polygonal groove, the second half shaft penetrates through the shaft hole and the semicircular groove, a clamping head (42) matched with the polygonal groove in shape is arranged at the front end of the first half shaft, the clamping head is inserted into the semicircular groove, the plug portion is clamped on the clamping groove, a mounting hole (44) is arranged on the sleeve edge corresponding to the polygonal groove, corresponding screw holes are arranged on the clamping head and the second half shaft, and the plug portion, the first half shaft and the second half shaft are fixed through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110117647.2A CN112802705B (en) | 2021-01-28 | 2021-01-28 | Earthing switch operation axle construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110117647.2A CN112802705B (en) | 2021-01-28 | 2021-01-28 | Earthing switch operation axle construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112802705A CN112802705A (en) | 2021-05-14 |
| CN112802705B true CN112802705B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110117647.2A Active CN112802705B (en) | 2021-01-28 | 2021-01-28 | Earthing switch operation axle construction |
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| CN (1) | CN112802705B (en) |
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