CN216883223U - Polishing tool for polishing static contact of V-shaped on-load tap-changer - Google Patents
Polishing tool for polishing static contact of V-shaped on-load tap-changer Download PDFInfo
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- CN216883223U CN216883223U CN202122559944.0U CN202122559944U CN216883223U CN 216883223 U CN216883223 U CN 216883223U CN 202122559944 U CN202122559944 U CN 202122559944U CN 216883223 U CN216883223 U CN 216883223U
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- outer joint
- bottom plate
- grinding tool
- grinding
- load tap
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Abstract
The utility model relates to a polishing tool for polishing a fixed contact of a V-shaped on-load tap-changer, which comprises a bottom plate, an outer joint, a soft flitch and abrasive paper, wherein the outer joint is arranged at the center position of the upper surface of the bottom plate and can rotate 360 degrees, the soft flitch is arranged on the lower surface of the bottom plate, the abrasive paper is arranged below the soft flitch, the outer joint is externally connected with a lengthened handle, at least one group of opposite sides of the upper surface of the bottom plate are symmetrically provided with clamping devices, two ends of the abrasive paper are respectively fixed on the clamping devices, one end of the outer joint is in threaded connection with the lengthened handle, the other end of the outer joint is in rotatable connection with the upper surface of the bottom plate, and an angle adjusting mechanism for adjusting the rotation angle of the outer joint is arranged between the bottom plate and the outer joint. The utility model has the advantages that: the novel polishing machine has the advantages that the novel polishing machine is small in size, can act on narrow space, the outer joint can be externally connected with the lengthened handle, remote operation is facilitated, 360-degree rotation of the outer joint is achieved through the angle adjusting mechanism, the static contact can be polished in an all-round mode through the rotatable design, and polishing effect is good.
Description
Technical Field
The utility model relates to a grinding tool, in particular to a grinding tool for grinding a static contact of a V-shaped on-load tap-changer.
Background
In the normal use process of the on-load tap-changer of the transformer, because the surface of the contact is possibly oxidized to generate a layer of oxidation film due to long-time soaking in oil, the reliable contact of the moving contact and the static contact is blocked, and if the surface of the contact is not polished and maintained in time, the contact between the moving contact and the static contact of the tap-changer can be poor. On one hand, the voltage regulating effect of the transformer can be influenced, and on the other hand, the faults (contact heating and burning loss) of the tap changer can be caused, so that the normal operation of the transformer is influenced.
During daily maintenance, the inner wall space of the V-shaped on-load tap-changer is narrow (about 28cm in diameter) due to the design of the V-shaped on-load tap-changer, the depth reaches about 1.3m to 1.6m, only the moving contact and part of high static contacts can be finely polished in the maintenance process, the static contacts at the deep parts of the inner wall are difficult to polish, the static contacts cannot be comprehensively maintained, and hidden equipment hazards can be left.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a polishing tool for polishing a static contact of a V-shaped on-load tap-changer, which can conveniently and effectively polish the static contact of the V-shaped on-load tap-changer, has short consumed time and good polishing effect and provides a powerful guarantee for the safe and stable operation of the on-load tap-changer.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a burnisher for polishing V type has on-load tap-changer static contact, includes the bottom plate, sets up in bottom plate upper surface central point and puts 360 degrees rotatory outer joints, sets up the soft flitch at the bottom plate lower surface to and set up the abrasive paper in soft flitch below, the external extension handle that adds of outer joint, the at least a set of opposite side symmetry of bottom plate upper surface is equipped with clamping device, the abrasive paper both ends are fixed respectively on clamping device, outer joint one end and the handle threaded connection that adds, the upper surface rotatable coupling of the other end and bottom plate, be equipped with the angle adjustment mechanism that adjusts to outer joint turned angle between bottom plate and the outer joint.
Preferably, the angle adjusting mechanism comprises a universal shaft, a fixing nut, a cylindrical pin and a pin, the bottom of the universal shaft is rotatably arranged on the bottom plate through the fixing nut, the bottom of the universal shaft is locked by the pin, and the top of the universal shaft is rotatably connected with the outer joint through the cylindrical pin.
Preferably, the top of the universal shaft is provided with a lateral deviation groove along the axial direction of the universal shaft, and the outer joint is rotatably arranged in the lateral deviation groove through a cylindrical pin.
Preferably, the upper surface of the bottom plate is symmetrically provided with a bracket, and the clamping devices are movably arranged on the bracket.
Preferably, the clamping device comprises a rotating shaft arranged on the support, a torsion spring sleeved on the rotating shaft is sleeved, and a clamp matched with the torsion spring is rotatably assembled on the rotating shaft.
Preferably, the bottom of the clamp is provided with sawteeth, and the top of the clamp is provided with a pressing block convenient for operation of a thumb.
Preferably, the outer joint comprises a vertical portion, a bending portion and a thread portion which are connected in sequence, the vertical portion, the bending portion and the thread portion are integrally arranged, and the thread portion inclines upwards and is arranged at an acute angle with the plane where the bottom plate is located.
Preferably, the threaded portion comprises a screw and a nut, and the lengthened handle is in threaded connection with the screw and is locked through the nut.
Preferably, the screw rod is provided with an external thread, and one end of the lengthened handle is provided with a threaded hole matched with the external thread on the screw rod.
Preferably, the nut is provided with an internal thread, and the outer side wall of the lengthened handle is provided with an external thread matched with the internal thread on the nut.
After the technical scheme is adopted, the utility model has the following advantages:
the volume is small, the external joint can be externally connected with a lengthened handle, the remote operation is convenient, the external joint can be rotated by 360 degrees through an angle adjusting mechanism, the static contact can be polished in all directions through the rotatable design, and the polishing effect is good; the soft flitch is made of soft PVC materials, sand paper is attached to the soft flitch, a tool is prevented from damaging the static contact in the polishing process, the soft materials can enable the sand paper to be completely attached to the static contact, the polishing effect is improved, the sand paper is fixed through the clamping device, compared with the prior art that the soft flitch is fixed through bolts, the clamping is simple, the operation is more convenient, and time and labor are saved; the setting of pressing the briquetting on the anchor clamps, when using clamping device, the thumb of being convenient for is pressed, and sawtooth design on the anchor clamps helps firmly gripping abrasive paper, prevents that abrasive paper from droing when polishing, guarantees that the abrasive paper centre gripping is tight motionless.
Drawings
The utility model will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an assembled view of the angle adjustment mechanism of the present invention;
FIG. 3 is a schematic structural view of an angle adjustment mechanism according to the present invention;
fig. 4 is a schematic structural view of the outer joint of the present invention.
Reference numerals:
1. a base plate; 2. an outer joint; 21. a vertical portion; 22. a bending part; 23. a threaded portion; 231. a screw; 232. a nut; 3. pasting a board; 4. sand paper; 5. lengthening the handle; 51. a threaded hole; 6. a clamping device; 61. a rotating shaft; 62. a torsion spring; 63. a clamp; 631. saw teeth; 632. a pressing block; 7. an angle adjusting mechanism; 71. a cardan shaft; 711. a lateral deviation groove; 72. fixing a nut; 73. a cylindrical pin; 74. a pin; 8. a support; 9. and (7) installing holes.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the present invention will be further described with reference to the accompanying drawings and specific examples. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used merely to indicate an orientation or positional relationship relative to one another as illustrated in the drawings, merely to facilitate describing and simplifying the utility model, and are not intended to indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore are not to be considered limiting of the utility model.
Examples
The utility model provides a burnisher for polishing V type has on-load tap-changer static contact, as shown in fig. 1-4, includes bottom plate 1, sets up in bottom plate 1 upper surface central point and puts outer joint 2 that can 360 degrees rotations, sets up soft flitch 3 at bottom plate 1 lower surface to and set up abrasive paper 4 in soft flitch 3 below, the external extension handle 5 of outer joint 2, the at least a set of opposite side symmetry of bottom plate 1 upper surface is equipped with clamping device 6, the both ends of abrasive paper 4 are fixed respectively on clamping device 6, 2 one end of outer joint and 5 threaded connection of extension handle, the upper surface rotatable coupling of the other end and bottom plate 1, be equipped with angle adjustment mechanism 7 that adjusts to the 2 turned angle of outer joint between bottom plate 1 and the outer joint 2.
The external joint 2 can be externally connected with the lengthened handle 5, so that remote operation is facilitated, the external joint 2 can rotate by 360 degrees through the angle adjusting mechanism 7, the static contact can be polished in all directions through the rotatable design, and the polishing effect is good; soft flitch 3 adopts soft PVC material to make, prevents to polish in-process instrument and bruises the static contact, and soft material can also make abrasive paper 4 laminate with the static contact completely, improves the effect of polishing, and abrasive paper 4 is fixed through clamping device 6, presss from both sides and gets simply, and the operation is more convenient, saves time and laborsaving.
The bottom plate 1 is provided with a mounting hole 9, the angle adjusting mechanism 7 is arranged in the mounting hole 9, the angle adjusting mechanism 7 comprises a universal shaft 71, a fixing nut 72, a cylindrical pin 73 and a pin 74, the bottom of the universal shaft 71 is rotatably arranged on the bottom plate 1 through the fixing nut 72, the locking position is achieved through the pin 74, and the top of the universal shaft 71 is rotatably connected with the outer joint 2 through the cylindrical pin 73. In use, the cardan shaft 71 is rotated, which in turn rotates the outer joint 2, and a suitable operating angle is selected and locked in position by the pin 74.
In order to facilitate the housing of the outer joint 2, a side offset groove 711 is formed in the top of the universal shaft 71 along the axial direction of the universal shaft 71, and the outer joint 2 is rotatably disposed in the side offset groove 711 by a cylindrical pin 73. The outer joint 2 can rotate around the cylindrical pin 73, when not in use, the outer joint 2 can be turned over around the cylindrical pin 73 to enable the outer joint 2 to be transversely placed for storage, when in use, the outer joint 2 is turned over around the cylindrical pin 73 to enable the outer joint 2 to be vertically placed, and then the outer joint 2 is connected with the lengthened handle 5 for use.
In order to facilitate the installation and use of the clamping device 6, a bracket 8 is symmetrically arranged on the upper surface of the bottom plate 1, and the clamping device 6 is movably arranged on the bracket 8. The clamping device 6 comprises a rotating shaft 61 arranged on the support 8, a torsion spring 62 sleeved on the rotating shaft 61, and a clamp 63 matched with the torsion spring 62 is rotatably assembled on the rotating shaft 61. Wherein, anchor clamps 63 bottom is equipped with sawtooth 631, and sawtooth 631 design helps firmly to bite abrasive paper 4 on the anchor clamps 63, prevents that abrasive paper 4 from droing when polishing, guarantees that the 4 centre gripping of abrasive paper tightly stretches tight motionless, and anchor clamps 63 top is equipped with the pressing block 632 that makes things convenient for the thumb operation, presses the setting of pressing block 632 on the anchor clamps 63, and when using clamping device 6, the thumb of being convenient for is pressed, operation labour saving and time saving.
For the structural stability of reinforcing outer joint 2, outer joint 2 is including the vertical portion 21 that connects gradually, the portion 22 of bending and screw thread portion 23, vertical portion 21, the portion 22 of bending and screw thread portion 23 an organic whole set up, and overall stability is good, screw thread portion 23 slope upwards and be the acute angle setting with bottom plate 1 place plane. When making screw portion 23 and extension handle 5 be connected the use, extension handle 5 acts on the effort equipartition on abrasive paper 4, reduces abrasive paper 4 partial wear, improves abrasive paper 4's utilization ratio, and economy is the environmental protection again.
In order to further improve the stability of the connection of the outer joint 2 and the extension handle 5, the threaded portion 23 includes a screw 231 and a nut 232, and the extension handle 5 is threadedly connected to the screw 231 and tightened by the nut 232. Wherein, be equipped with the external screw thread on the screw rod 231, extension handle 5 one end is equipped with the screw hole 51 with external screw thread looks adaptation on the screw rod 231. Be equipped with the internal thread on the nut 232, be equipped with on the 5 lateral walls of extension handle with the nut 232 on the external screw thread that the internal thread suits to know matches.
Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a burnisher for polishing V type on-load tap-changer static contact which characterized in that: including the bottom plate, set up in bottom plate upper surface central point and put the outer joint that can 360 degrees rotations, set up the soft flitch at the bottom plate lower surface to and set up the abrasive paper in soft flitch below, the external extension handle that adds of outer joint, a set of opposite side symmetry at least of bottom plate upper surface is equipped with clamping device, the abrasive paper both ends are fixed respectively on clamping device, outer joint one end and extension handle threaded connection, the upper surface rotatable coupling of the other end and bottom plate, be equipped with the angle adjustment mechanism who carries out the regulation to outer joint turned angle between bottom plate and the outer joint.
2. The grinding tool for grinding the fixed contact of the V-shaped on-load tap-changer according to claim 1, wherein the grinding tool comprises: the angle adjusting mechanism comprises a universal shaft, a fixing nut, a cylindrical pin and a pin, the bottom of the universal shaft is rotatably arranged on the bottom plate through the fixing nut, the bottom of the universal shaft is locked by the pin, and the top of the universal shaft is rotatably connected with the outer joint through the cylindrical pin.
3. The grinding tool for grinding the fixed contact of the V-shaped on-load tap-changer according to claim 2, wherein the grinding tool comprises: the top of the universal shaft is provided with a lateral deviation groove along the axial direction of the universal shaft, and the outer joint is rotatably arranged in the lateral deviation groove through a cylindrical pin.
4. The grinding tool for grinding the fixed contact of the V-shaped on-load tap-changer according to claim 1, wherein the grinding tool comprises: the upper surface of the bottom plate is symmetrically provided with a bracket, and the clamping devices are movably arranged on the bracket.
5. The grinding tool for grinding the fixed contact of the V-shaped on-load tap-changer according to claim 4, wherein the grinding tool comprises: the clamping device comprises a rotating shaft arranged on the support, a torsion spring arranged on the rotating shaft in a sleeved mode, and a clamp matched with the torsion spring is assembled on the rotating shaft in a rotating mode.
6. The grinding tool for grinding the fixed contact of the V-shaped on-load tap-changer according to claim 5, wherein the grinding tool comprises: the bottom of the clamp is provided with sawteeth, and the top of the clamp is provided with a pressing block convenient for a thumb to operate.
7. The grinding tool for grinding the fixed contact of the V-shaped on-load tap-changer according to claim 1, wherein the grinding tool comprises: the outer joint is including the vertical portion, the portion of bending and the screw thread portion that connect gradually, vertical portion, the portion of bending and the integrative setting of screw thread portion, the screw thread portion slope upwards and be the acute angle setting with bottom plate place plane.
8. The grinding tool for grinding the fixed contact of the V-shaped on-load tap-changer according to claim 7, wherein the grinding tool comprises: the thread part comprises a screw and a nut, and the lengthened handle is in threaded connection with the screw and locked through the nut.
9. The grinding tool for grinding the fixed contact of the V-shaped on-load tap-changer according to claim 8, wherein the grinding tool comprises: the screw rod is provided with external threads, and one end of the lengthened handle is provided with a threaded hole matched with the external threads on the screw rod.
10. The grinding tool for grinding the fixed contact of the V-shaped on-load tap-changer according to claim 9, wherein: the nut is provided with an internal thread, and the outer side wall of the lengthened handle is provided with an external thread matched with the internal thread on the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122559944.0U CN216883223U (en) | 2021-10-22 | 2021-10-22 | Polishing tool for polishing static contact of V-shaped on-load tap-changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122559944.0U CN216883223U (en) | 2021-10-22 | 2021-10-22 | Polishing tool for polishing static contact of V-shaped on-load tap-changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216883223U true CN216883223U (en) | 2022-07-05 |
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ID=82195780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122559944.0U Active CN216883223U (en) | 2021-10-22 | 2021-10-22 | Polishing tool for polishing static contact of V-shaped on-load tap-changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216883223U (en) |
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2021
- 2021-10-22 CN CN202122559944.0U patent/CN216883223U/en active Active
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